CN106299945A - A kind of seat motor carbon brush - Google Patents
A kind of seat motor carbon brush Download PDFInfo
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- CN106299945A CN106299945A CN201510256135.9A CN201510256135A CN106299945A CN 106299945 A CN106299945 A CN 106299945A CN 201510256135 A CN201510256135 A CN 201510256135A CN 106299945 A CN106299945 A CN 106299945A
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- compound
- carbon brush
- layer
- lubricating layer
- layer compound
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 174
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 106
- 150000001875 compounds Chemical class 0.000 claims abstract description 151
- 230000001050 lubricating effect Effects 0.000 claims abstract description 84
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 claims abstract description 74
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 72
- 239000000314 lubricant Substances 0.000 claims abstract description 72
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims abstract description 56
- 229920001568 phenolic resin Polymers 0.000 claims abstract description 56
- 239000000843 powder Substances 0.000 claims abstract description 44
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 40
- 239000010439 graphite Substances 0.000 claims abstract description 40
- 229960004011 methenamine Drugs 0.000 claims abstract description 37
- 238000000034 method Methods 0.000 claims abstract description 33
- 239000000203 mixture Substances 0.000 claims abstract description 29
- 238000007906 compression Methods 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims description 51
- 238000002156 mixing Methods 0.000 claims description 46
- 229910021382 natural graphite Inorganic materials 0.000 claims description 26
- 229910052802 copper Inorganic materials 0.000 claims description 25
- 239000010949 copper Substances 0.000 claims description 25
- 239000002994 raw material Substances 0.000 claims description 25
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 23
- 239000007788 liquid Substances 0.000 claims description 23
- 229910052750 molybdenum Inorganic materials 0.000 claims description 23
- 239000011733 molybdenum Substances 0.000 claims description 23
- 239000005011 phenolic resin Substances 0.000 claims description 20
- 238000003756 stirring Methods 0.000 claims description 18
- 238000010298 pulverizing process Methods 0.000 claims description 8
- 238000005452 bending Methods 0.000 abstract description 3
- 230000005611 electricity Effects 0.000 abstract description 2
- 239000000047 product Substances 0.000 description 32
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 24
- 238000005245 sintering Methods 0.000 description 24
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 12
- 229910052739 hydrogen Inorganic materials 0.000 description 12
- 239000001257 hydrogen Substances 0.000 description 12
- 229910052757 nitrogen Inorganic materials 0.000 description 12
- 238000005461 lubrication Methods 0.000 description 11
- 238000001514 detection method Methods 0.000 description 6
- -1 phenolic aldehyde Chemical class 0.000 description 6
- 238000002360 preparation method Methods 0.000 description 6
- 239000007787 solid Substances 0.000 description 6
- 239000012467 final product Substances 0.000 description 5
- 230000036314 physical performance Effects 0.000 description 5
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 2
- 235000011613 Pinus brutia Nutrition 0.000 description 2
- 241000018646 Pinus brutia Species 0.000 description 2
- 241000316887 Saissetia oleae Species 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003974 emollient agent Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
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Abstract
The invention provides a kind of seat motor carbon brush, described carbon brush includes high connductivity layer and high lubricating layer, is to be prepared via a method which to form: by electrolytic copper powder, native graphite and phenol-formaldehyde resin powder mix homogeneously, prepares high connductivity layer compound；By uniform to electrolytic copper powder, native graphite and the mix lubricant containing hexamethylenamine, prepare high lubricating layer compound；Described high lubricating layer compound and high connductivity layer compound are added separately in described mould, it is carried out compression process, prepare carbon brush pressed compact；Described carbon brush pressed compact is sintered, prepares carbon brush first product；Described brush first product is carried out ground, obtains brush finished product.Seat motor carbon brush of the present invention uses high connductivity layer and high lubricating layer to be combined, and suppresses peculiar shape, is the cambered surface of bending in the one side near diverter, can be always ensured that high lubricating layer front end is prominent to contact with diverter, therefore the carbon brush prepared conducts electricity very well, rub resistance, and noise is little.
Description
Technical field
The present invention relates to a kind of seat motor carbon brush, be specifically related to the seat motor of a kind of low pressure drop, low noise
With carbon brush, belong to electrical carbon field.
Background technology
Along with car popularizing in modern society, people are more and more higher to the various requirement of car.In car
Portion has various motor to facilitate user's operation to each system of car.As a example by seat system, seat
Lifting, movable, hue angle are all by driven by motor.This type of motor typically uses low pressure (generally 12V
Left and right) brush direct current motor.Owing to seat motor is close to the users, therefore the requirement to its noise is the highest.?
Inside noise system, the break-in of carbon brush and diverter occupies major part ratio, the most also to this type of carbon brush material,
Structure itself proposes higher requirement.
The currently used commonly used copper powder of seat motor carbon brush, graphite powder and binding agent mold the soft strand of fine copper
Line molding, sintering, process, in general carbon brush body is a kind of uniform component.This type of carbon brush is at mesh
Front application can meet the requirement of motor power performance substantially, but its noise performance increasingly can not meet user
Requirement.
The seat motor carbon brush of the present invention, based on the seat motor rigors to noise, makes every effort to reduce carbon brush
The noise produced with diverter break-in, namely increases lubrication, reduces spark etc..Carbon brush body uses two kinds of groups
Dividing potential drop system, and the position contacted with diverter according to radian is different, is changed to two-layer or three lamination systems.These are two years old
Planting in component, one is high lubricating layer, and one is high connductivity layer, reaches low pressure drop, low noise after two-layer is compound
Purpose.Owing to the angle of carbon brush radian processes difference, carbon brush radian contacts with diverter typically three kinds, i.e.
Upper, middle and lower structure.For these three kinds of structures, and in order to allow high lubricating layer contact diverter as far as possible, derivative three
Plant corresponding carbon brush structure.
Summary of the invention
The present invention is not enough in order to overcome present in existing seat motor carbon brush technology, it is provided that a kind of seat motor
With carbon brush, the present invention goes out special cambered surface by compacting grinding after high lubricating layer and high connductivity layer being combined, preparation
Low pressure drop, the carbon brush of low noise, reach to increase lubrication, reduce spark, improve the purpose of Service Life of Carbon Brush.
The invention provides a kind of seat motor carbon brush, described carbon brush includes high connductivity layer and high lubricating layer, is
It is prepared via a method which to form:
By electrolytic copper powder, native graphite and phenol-formaldehyde resin powder mix homogeneously, prepare high connductivity layer compound；
By uniform to electrolytic copper powder, native graphite and the mix lubricant containing hexamethylenamine, prepare high lubricating layer and mix
Close material；
Described high lubricating layer compound and high connductivity layer compound are added separately in described mould, it is carried out
Compression process, prepares carbon brush pressed compact；
Described carbon brush pressed compact is sintered, prepares carbon brush first product；
Described brush first product is carried out ground, obtains brush finished product.
Wherein, the weight of the described high connductivity each raw material of layer compound is: electrolytic copper powder 30-60, natural
Graphite 40-70, phenol-formaldehyde resin powder 20-40, described electrolytic copper powder is 100 with the weight portion sum of native graphite
Part.
Particularly, the weight of the described high connductivity each raw material of layer compound is preferably: electrolytic copper powder 45-55,
Native graphite 45-55, phenol-formaldehyde resin powder 25-35, described electrolytic copper powder with the weight portion sum of native graphite is
100 parts.
Especially, the copper content of described electrolytic copper powder is >=99%, and granularity is-300 mesh, and pine dress ratio is
0.8-1.9g/cm3。
Particularly, described native graphite is black scale like powder, and granularity is-100 mesh.
Especially, described phenol-formaldehyde resin powder is yellow powder, and for thermosetting phenolic resin, granularity is+200 mesh.
Wherein, the time of described prepared high connductivity layer compound is 10-120min, preferably 20-80min.
Wherein, the weight of the described high each raw material of lubricating layer compound is: electrolytic copper powder 5-45, natural stone
Ink 50-90, lubricant 2-6, phenol-formaldehyde resin powder 20-40, described electrolytic copper powder, native graphite and lubricant
Weight portion sum is 100 parts.
Particularly, the weight of the described high each raw material of lubricating layer compound is preferably: electrolytic copper powder 15-45,
Native graphite 50-85, lubricant 4.5-6, phenol-formaldehyde resin powder 25-35, described electrolytic copper powder, native graphite with
The weight portion sum of lubricant is 100 parts.
Especially, the copper content of described electrolytic copper powder is >=99%, and granularity is-300 mesh, and pine dress ratio is
0.8-1.9g/cm3。
Particularly, described native graphite is black scale like powder, granularity is-100 mesh.
Especially, described phenol-formaldehyde resin powder is yellow powder, and for thermosetting phenolic resin, granularity is+200 mesh.
Wherein, in described lubricant, described hexamethylenamine with the weight of other raw material is: Wu Luotuo
Product 5-10；Other raw materials are 90-150.
Particularly, other raw material of described lubricant includes natural graphite powder, molybdenum bisuphide and liquid phenolic resin,
It with the weight of hexamethylenamine is:
Hexamethylenamine 5-10, natural graphite powder 35-55；
Hexamethylenamine 5-10, molybdenum bisuphide 35-55；
Hexamethylenamine 5-10, liquid phenolic resin 20-40；
The weight portion sum of described natural graphite powder, molybdenum bisuphide and hexamethylenamine is 100 parts.
Especially, described natural graphite powder, molybdenum bisuphide and liquid phenolic resin are joined with the weight portion of hexamethylenamine
Than being preferably:
Hexamethylenamine 6-8, natural graphite powder 40-50；
Hexamethylenamine 6-8, molybdenum bisuphide 40-50；
Hexamethylenamine 6-8, liquid phenolic resin 15-35；
The weight portion sum of described natural graphite powder, molybdenum bisuphide and hexamethylenamine is 100 parts.
Wherein, described hexamethylenamine white crystalline powder, purity >=99%.
Hexamethylenamine is commonly used for the firming agent of resin and plastics, and the addition of hexamethylenamine can strengthen the strong of carbon brush
Degree, it is ensured that carbon brush does not reduce intensity while improving lubricity.
Particularly, described molybdenum bisuphide is grey black pressed powder, and granularity is-300 mesh, and molybdenum bisuphide has
Extremely low coefficient of friction and higher PV characteristic, greasy property is good, and comprcssive strength is big.
Especially, described natural graphite powder is Spherical graphite particles, and granularity is-300 mesh～+40 mesh.
Particularly, described liquid phenolic resin is brown liquid, solids content >=60%.
High lubricating layer adds appropriate lubricant, it is possible to significantly improve the lubricity of carbon brush height lubricating layer, from
And reduce the noise of carbon brush and diverter break-in.Lubricant uses the collaborative lubrication of two emollient component, molybdenum bisuphide
Various working environment is can adapt to graphite.Lubricant can make the two more be uniformly distributed by liquid resin,
Thus reach two kinds of emollient component " fusion " in granule rank.
Wherein, described prepared high lubricating layer compound includes:
At normal temperatures, by natural graphite powder, molybdenum bisuphide and hexamethylenamine mix homogeneously, prepare and expect at the beginning of lubricant；
Liquid phenolic resin is added in material at the beginning of described lubricant and stir, prepare mix lubricant material；
The mix lubricant material having vapored away described volatile matter carries out pulverization process, prepares lubricant；
Described lubricant is joined the tentatively electrolytic copper powder of mix homogeneously, natural graphite powder and phenolic resin
In powder, stir, prepare high lubricating layer compound.
Wherein, described liquid phenolic resin is added at the beginning of described lubricant the prepared mix lubricant that stirs in material
Material includes:
Material at the beginning of described lubricant is heated to 80-100 DEG C, liquid phenolic resin is added thereto stirring
10-60min, obtains the mix lubricant material of solid-state.
Particularly, the mix lubricant material having vapored away described volatile matter carries out pulverization process, prepares granularity
Lubricant for-40 mesh.
Wherein, after described electrolytic copper powder, natural graphite powder and phenol-formaldehyde resin powder mixing and stirring, then by institute
State lubricant to be added thereto, prepare high lubricating layer compound.
Particularly, the time of described electrolytic copper powder, natural graphite powder and phenol-formaldehyde resin powder mixing and stirring is
5-60min, preferably 5-30min.
Especially, described lubricant is joined electrolytic copper powder the most by evenly mixing, natural graphite powder and phenolic aldehyde
The time stirred in resin-oatmeal is 10-120min, preferably 20-80min.
Wherein, described high connductivity layer compound and high lubricating layer compound are added separately to mould and include:
First described high connductivity layer compound is put in described mould；
Again described high lubricating layer compound is put on the described high connductivity layer compound in described mould；
Then, copper soft whipping wire is inserted described high connductivity layer compound via high lubricating layer compound in described mould
Within.
Particularly, the described high connductivity layer mixing bed of material is the 1/2-4/5 of total compound thickness.
Especially, the described high lubricating layer mixing bed of material is the 1/5-1/2 of total compound thickness.
Particularly, the plug wire degree of depth of described copper soft whipping wire is the 1/2-4/5 of total thickness of feed layer in described mould.
Wherein, described high connductivity layer compound and high lubricating layer compound are added separately to mould and include:
First described high connductivity layer compound is put in described mould；
Again described high lubricating layer compound is put on the described high connductivity layer compound in described mould；
Then, copper soft whipping wire is inserted described high connductivity layer compound via high lubricating layer compound in described mould
Within.
Particularly, the described high lubricating layer mixing bed of material is the 1/5-1/2 of total compound thickness.
Especially, the described high connductivity layer mixing bed of material is the 1/2-4/5 of total compound thickness.
Particularly, the plug wire degree of depth of described copper soft whipping wire is the 1/2-4/5 of total thickness of feed layer in described mould.
Wherein, described high connductivity layer compound and high lubricating layer compound are added separately to mould and include:
First a part of described high connductivity layer compound is put into and described mould is formed the mixing of ground floor high connductivity layer
Material；
Again described high lubricating layer compound is put on the described high connductivity layer compound in described mould；
Then, remaining described high connductivity layer compound is put into the described high lubricating layer compound in described mould
On formed second layer high connductivity layer compound；
Then, within copper soft whipping wire is inserted the compound in described mould.
Particularly, the described ground floor high connductivity layer mixing bed of material is the 1/4-2/5 of total compound thickness.
Especially, the described high lubricating layer mixing bed of material is the 1/5-1/2 of total compound thickness.
Particularly, the described second layer high connductivity layer mixing bed of material is the 1/4-2/5 of total compound thickness.
Especially, the plug wire degree of depth of described copper soft whipping wire is the 1/2-4/5 of total thickness of feed layer in described mould.
Wherein, the compound in described mould is carried out compression process, prepare carbon brush pressed compact.
Particularly, the unit pressure 2-5 ton/cm of described compression process2。
Wherein, described carbon brush pressed compact is sintered, prepares carbon brush first product.
Particularly, the treatment temperature of described sintering processes is 500-800 DEG C, and the process time is 8.5-27h.
Especially, in 8-25h, the temperature of sintering furnace is brought up to 500-800 DEG C, be incubated at this temperature
0.5-2h。
Particularly, described sintering processes for being sintered place under nitrogen and hydrogen shield by described carbon brush pressed compact
Reason, the ratio of described nitrogen and hydrogen is 50-90%:10-50%.
Wherein, described brush first product is carried out brush finished product processing, obtains brush finished product.
Brush finished product processed of the present invention includes carrying out described brush first product at thickness and radian processing
Reason so that the carbon brush finished product prepared is the cambered surface tilted near the one side of diverter, before being always ensured that high lubricating layer
Distal process goes out and contacts with diverter, and high connductivity layer does not contact diverter, makes carbon brush and diverter be contacted from face and becomes
Linear contact lay, reduces the friction between carbon brush and diverter, reduces noise.
Advantages of the present invention and Advantageous Effects are as follows:
1, seat motor carbon brush of the present invention uses high connductivity layer and high lubricating layer to be combined, high connductivity layer and Gao Run
Slip layer is respectively adopted different material formula, and high connductivity layer material resistivity is low, conducts electricity very well, high lubricating layer material
Material coefficient of friction is low, and greasy property is good, and noise is little, reaches the purpose of low pressure drop, low noise after two-layer is compound.
2, the lubricant of the high lubricating layer of seat motor carbon brush of the present invention uses the graphite powder and two of particular size
The collaborative lubrication of molybdenum sulfide, can reach good lubricant effect, improve the greasy property of high lubricating layer, reduce
Friction with diverter.
3, the lubricant of the high lubricating layer of seat motor carbon brush of the present invention adds hexamethylenamine, hexamethylenamine
Be a kind of preferably resinae firming agent, the addition of hexamethylenamine can increase the intensity of material, it is to avoid routine
The defect that in carbon brush product, lubricity and intensity can not get both, makes the carbon brush of the present invention protect while increasing lubrication
Demonstrate,prove the intensity of carbon brush, increase the carbon brush life-span.
4, seat motor carbon brush of the present invention has peculiar shape, is the arc of bending in the one side near diverter
Face, can be always ensured that high lubricating layer front end is prominent and contact with diverter, and high connductivity layer does not contact diverter, makes
Carbon brush and diverter are contacted from face and become linear contact lay, reduce the friction between carbon brush and diverter, reduce noise.
5, seat motor carbon brush function admirable of the present invention, bulk density is 2-3.5g/cm3, resistivity is
0.05-20 μ Ω .m, Shore hardness 10-30HS.
Accompanying drawing explanation
Fig. 1 is the sectional view of seat motor the first structure of carbon brush of the present invention；
Fig. 2 is the sectional view of seat motor carbon brush the second structure of the present invention；
Fig. 3 is the sectional view of seat motor the third structure of carbon brush of the present invention；
Fig. 4 is the top view of seat motor the first structure of carbon brush of the present invention；
Fig. 5 is the top view of seat motor carbon brush the second structure of the present invention and the third structure.
Description of reference numerals:
1, high connductivity layer；2, high lubricating layer；3, copper soft whipping wire.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, invention is illustrated.Advantages of the present invention and feature will be with describing
And it is apparent.But these embodiments are only exemplary, the scope of the present invention is not constituted any restriction.
It will be understood by those skilled in the art that can be to skill of the present invention under without departing from the spirit and scope of the present invention
The details of art scheme and form are modified or replace, but these amendments and replacement each fall within the protection model of the present invention
In enclosing.
Embodiment 1
1, preparation high connductivity layer compound
It is electrolytic copper powder 50 according to weight, native graphite 50, phenol-formaldehyde resin powder 25 gets out raw material,
Then electrolytic copper powder, native graphite and phenol-formaldehyde resin powder are joined in mixing apparatus, be stirred at room temperature mixing
50min, prepares high connductivity layer compound.
2, high lubricating layer compound is prepared
(1) lubricant is prepared
It is natural graphite powder 45 according to weight, molybdenum bisuphide 48, hexamethylenamine 7, liquid phenolic aldehyde tree
Fat 30 gets out raw material, then by natural graphite powder, molybdenum bisuphide and hexamethylenamine mix homogeneously at normal temperatures,
Prepare and expect at the beginning of lubricant；
Material at the beginning of lubricant is heated to 90 DEG C, then liquid phenolic resin is added thereto, stirring mixing 40min,
Prepare the mix lubricant material of solid-state；
Solid lubricant compound carrying out pulverization process, then crosses 40 mesh sieves, prepared granularity is the profit of-40 mesh
Lubrication prescription.
(2) it is electrolytic copper powder 43 according to weight, native graphite 55, lubricant 2, phenol-formaldehyde resin powder
30 get out raw material, then join in mixing apparatus by electrolytic copper powder, native graphite and phenol-formaldehyde resin powder,
It is stirred at room temperature mixing 30min.
(3) lubricant that step (1) prepares is joined electrolytic copper powder that step (2) mixed,
In native graphite and phenol-formaldehyde resin powder, stirring mixing 70min, prepare high lubricating layer compound.
3, compression process
First the high connductivity layer compound prepared is put in mould, the higher lubricating layer compound prepared is put
Enter on the described high connductivity layer compound in described mould, then by copper soft whipping wire via lubricating layer high in mould
Within compound inserts high connductivity layer compound；Wherein, high connductivity layer is the 7/10, Gao Run of total compound thickness
Slip layer is the 3/10 of total compound thickness, the plug wire degree of depth is total thickness of feed layer the 3/5 of copper soft whipping wire；Use pressure
Control equipment carries out compression process to the compound in mould, prepares carbon brush pressed compact, the wherein unit pressure of compression process
3 tons/cm of power2。
4, sintering processes
The carbon brush pressed compact suppressed is placed with high temperature sintering furnace, under nitrogen and hydrogen shield, it is burnt
Knot processes；Wherein, the ratio of nitrogen and hydrogen is 70%:30%；Sintering process conditions is: will in 15h
In high temperature sintering furnace, temperature rise is to 700 DEG C, is then incubated 1h, i.e. obtains carbon brush first product after being cooled to room temperature；To carbon brush
First product carries out physical performance index detection, and testing result is shown in Table 1.
5, finished product processed
Carbon brush first product is carried out ground, to obtain final product；As it is shown in figure 1, the present embodiment prepare carbon brush and commutation
The side of device contact is for tilting cambered surface, and the cross section of carbon brush is inverted trapezoidal, described cambered surface and the friendship of high lubricating layer end face
Wiring contacts for diverter.
Embodiment 2
1, preparation high connductivity layer compound
It is electrolytic copper powder 45 according to weight, native graphite 55, phenol-formaldehyde resin powder 30 gets out raw material,
Then electrolytic copper powder, native graphite and phenol-formaldehyde resin powder are joined in mixing apparatus, be stirred at room temperature mixing
10min, prepares high connductivity layer compound.
2, high lubricating layer compound is prepared
(1) lubricant is prepared
It is natural graphite powder 35 according to weight, molybdenum bisuphide 55, hexamethylenamine 10, liquid phenolic aldehyde tree
Fat 20 gets out raw material, then by natural graphite powder, molybdenum bisuphide and hexamethylenamine mix homogeneously at normal temperatures,
Prepare and expect at the beginning of lubricant；
Material at the beginning of lubricant is heated to 100 DEG C, then liquid phenolic resin is added thereto, stirring mixing
60min, prepares the mix lubricant material of solid-state；
Solid lubricant compound carrying out pulverization process, then crosses 40 mesh sieves, prepared granularity is the profit of-40 mesh
Lubrication prescription.
(2) it is electrolytic copper powder 45 according to weight, native graphite 50, lubricant 5, phenol-formaldehyde resin powder
35 get out raw material, then join in mixing apparatus by electrolytic copper powder, native graphite and phenol-formaldehyde resin powder,
It is stirred at room temperature mixing 20min.
(3) lubricant that step (1) prepares is joined electrolytic copper powder that step (2) mixed,
In native graphite and phenol-formaldehyde resin powder, stirring mixing 90min, prepare high lubricating layer compound.
3, compression process
First the high connductivity layer compound prepared is put in mould, the higher lubricating layer compound prepared is put
Enter on the high connductivity layer compound in mould, then copper soft whipping wire is inserted via lubricating layer compound high in mould
Within entering high connductivity layer compound；Wherein, high connductivity layer is the 3/5 of total compound thickness, and high lubricating layer is total
The 2/5 of compound thickness, the plug wire degree of depth is total thickness of feed layer the 3/4 of copper soft whipping wire；Use press device to mould
Compound in tool carries out compression process, prepares carbon brush pressed compact, the wherein 4 tons/cm of unit pressure of compression process2。
4, sintering processes
The carbon brush pressed compact suppressed is placed with high temperature sintering furnace, under nitrogen and hydrogen shield, it is burnt
Knot processes；Wherein, the ratio of nitrogen and hydrogen is 80%:20%；Sintering process conditions is: will in 25h
In high temperature sintering furnace, temperature rise is to 800 DEG C, is then incubated 0.5h, i.e. obtains carbon brush first product after being cooled to room temperature；To carbon
Brush first product carries out physical performance index detection, and testing result is shown in Table 1.
5, finished product processed
Carbon brush first product is carried out ground, to obtain final product；As in figure 2 it is shown, the present embodiment prepare carbon brush and commutation
The side of device contact is for tilting cambered surface, and the cross section of carbon brush is inverted trapezoidal, described cambered surface and the friendship of high lubricating layer end face
Wiring is for contacting with diverter.
Embodiment 3
1, preparation high connductivity layer compound
It is electrolytic copper powder 55 according to weight, native graphite 45, phenol-formaldehyde resin powder 40 gets out raw material,
Then electrolytic copper powder, native graphite and phenol-formaldehyde resin powder are joined in mixing apparatus, be stirred at room temperature mixing
80min, prepares high connductivity layer compound.
2, high lubricating layer compound is prepared
(1) lubricant is prepared
It is natural graphite powder 40 according to weight, molybdenum bisuphide 54, hexamethylenamine 6, liquid phenolic aldehyde tree
Fat 25 gets out raw material, then by natural graphite powder, molybdenum bisuphide and hexamethylenamine mix homogeneously at normal temperatures,
Prepare and expect at the beginning of lubricant；
Material at the beginning of lubricant is heated to 85 DEG C, then liquid phenolic resin is added thereto, stirring mixing 30min,
Prepare the mix lubricant material of solid-state；
Solid lubricant compound carrying out pulverization process, then crosses 40 mesh sieves, prepared granularity is the profit of-40 mesh
Lubrication prescription.
(2) it is electrolytic copper powder 5 according to weight, native graphite 89, lubricant 6, phenol-formaldehyde resin powder
20 get out raw material, then join in mixing apparatus by electrolytic copper powder, native graphite and phenol-formaldehyde resin powder,
It is stirred at room temperature mixing 5min.
(3) lubricant that step (1) prepares is joined electrolytic copper powder that step (2) mixed,
In native graphite and phenol-formaldehyde resin powder, stirring mixing 120min, prepare high lubricating layer compound.
3, compression process
First the high lubricating layer compound prepared is put in mould, then the high connductivity layer compound prepared is put
Enter on the high lubricating layer compound in mould, within then copper soft whipping wire being inserted high connductivity layer compound；Its
In, high connductivity layer is the 4/5 of total compound thickness, and high lubricating layer is the 1/5 of total compound thickness, copper soft whipping wire
The plug wire degree of depth is total thickness of feed layer 7/10；Use press device that the compound in mould is carried out at compacting
Reason, prepares carbon brush pressed compact, the wherein 5 tons/cm of unit pressure of compression process2。
4, sintering processes
The carbon brush pressed compact suppressed is placed with high temperature sintering furnace, under nitrogen and hydrogen shield, it is burnt
Knot processes；Wherein, the ratio of nitrogen and hydrogen is 90%:10%；Sintering process conditions is: by height in 8h
In temperature sintering furnace, temperature rise is to 500 DEG C, is then incubated 2h, i.e. obtains carbon brush first product after being cooled to room temperature；To at the beginning of carbon brush
Product carry out physical performance index detection, and testing result is shown in Table 1.
5, finished product processed
Carbon brush first product is carried out ground, to obtain final product；As it is shown on figure 3, the present embodiment prepare carbon brush and commutation
The side of device contact is for tilting cambered surface, and the cross section of carbon brush is trapezoidal, described cambered surface and the handing-over of high lubricating layer bottom surface
Line is for contacting with diverter.
Embodiment 4
1, preparation high connductivity layer compound
It is electrolytic copper powder 30 according to weight, native graphite 70, phenol-formaldehyde resin powder 20 gets out raw material,
Then electrolytic copper powder, native graphite and phenol-formaldehyde resin powder are joined in mixing apparatus, be stirred at room temperature mixing
120min, prepares high connductivity layer compound.
2, high lubricating layer compound is prepared
(1) lubricant is prepared
It is natural graphite powder 55 according to weight, molybdenum bisuphide 35, hexamethylenamine 10, liquid phenolic aldehyde tree
Fat 35 gets out raw material, then by natural graphite powder, molybdenum bisuphide and hexamethylenamine mix homogeneously at normal temperatures,
Prepare and expect at the beginning of lubricant；
Material at the beginning of lubricant is heated to 80 DEG C, then liquid phenolic resin is added thereto, stirring mixing 10min,
Prepare the mix lubricant material of solid-state；
Solid lubricant compound carrying out pulverization process, then crosses 40 mesh sieves, prepared granularity is the profit of-40 mesh
Lubrication prescription.
(2) it is electrolytic copper powder 30 according to weight, native graphite 66, lubricant 4, phenol-formaldehyde resin powder
40 get out raw material, then join in mixing apparatus by electrolytic copper powder, native graphite and phenol-formaldehyde resin powder,
It is stirred at room temperature mixing 10min.
(3) lubricant that step (1) prepares is joined electrolytic copper powder that step (2) mixed,
In native graphite and phenol-formaldehyde resin powder, stirring mixing 40min, prepare high lubricating layer compound.
3, compression process
First the high lubricating layer compound prepared is put in mould, then the high connductivity layer compound prepared is put
Enter on the high lubricating layer compound in mould, within then copper soft whipping wire being inserted high connductivity layer compound；Its
In, high connductivity layer is the 1/2 of total compound thickness, and high lubricating layer is the 1/2 of total compound thickness, copper soft whipping wire
The plug wire degree of depth is total thickness of feed layer 4/5；Use press device that the compound in mould is carried out compression process,
Prepare carbon brush pressed compact, the wherein 2 tons/cm of unit pressure of compression process2。
4, sintering processes
The carbon brush pressed compact suppressed is placed with high temperature sintering furnace, under nitrogen and hydrogen shield, it is burnt
Knot processes；Wherein, the ratio of nitrogen and hydrogen is 50%:50%；Sintering process conditions is: will in 20h
In high temperature sintering furnace, temperature rise is to 700 DEG C, is then incubated 1.5h, i.e. obtains carbon brush first product after being cooled to room temperature；To carbon
Brush first product carries out physical performance index detection, and testing result is shown in Table 1.
5, finished product processed
Carbon brush first product is carried out ground, to obtain final product；As shown in Figure 4, the present embodiment prepare carbon brush and commutation
The side of device contact is for tilting cambered surface, and the cross section of carbon brush is trapezoidal, described cambered surface and the handing-over of high lubricating layer bottom surface
Line is for contacting with diverter.
Embodiment 5
1, preparation high connductivity layer compound
It is electrolytic copper powder 60 according to weight, native graphite 40, phenol-formaldehyde resin powder 35 gets out raw material,
Then electrolytic copper powder, native graphite and phenol-formaldehyde resin powder are joined in mixing apparatus, be stirred at room temperature mixing
20min, prepares high connductivity layer compound.
2, high lubricating layer compound is prepared
(1) lubricant is prepared
It is natural graphite powder 50 according to weight, molybdenum bisuphide 45, hexamethylenamine 5, liquid phenolic aldehyde tree
Fat 40 gets out raw material, then by natural graphite powder, molybdenum bisuphide and hexamethylenamine mix homogeneously at normal temperatures,
Prepare and expect at the beginning of lubricant；
Material at the beginning of lubricant is heated to 95 DEG C, then liquid phenolic resin is added thereto, stirring mixing
200min, prepares the mix lubricant material of solid-state；
Solid lubricant compound carrying out pulverization process, then crosses 40 mesh sieves, prepared granularity is the profit of-40 mesh
Lubrication prescription.
(2) it is electrolytic copper powder 7 according to weight, native graphite 90, lubricant 3, phenol-formaldehyde resin powder
25 get out raw material, then join in mixing apparatus by electrolytic copper powder, native graphite and phenol-formaldehyde resin powder,
It is stirred at room temperature mixing 60min.
(3) lubricant that step (1) prepares is joined electrolytic copper powder that step (2) mixed,
In native graphite and phenol-formaldehyde resin powder, stirring mixing 10min, prepare high lubricating layer compound.
3, compression process
First a part of high connductivity layer compound is put into formation ground floor high connductivity layer compound in mould, then by height
Lubricating layer compound is put on the high connductivity layer compound in mould, then by remaining high connductivity layer compound
Put into formation second layer high connductivity layer compound on the high lubricating layer compound in mould, then by copper soft whipping wire
Within inserting compound；Wherein, ground floor high connductivity layer compound is the 2/5 of total compound thickness, high lubrication
Layer compound is the 1/5 of total compound thickness, and second layer high connductivity layer compound is the 2/5 of total compound thickness；
The plug wire degree of depth is total thickness of feed layer the 1/2 of copper soft whipping wire；Use press device that the compound in mould is carried out
Compression process, prepares carbon brush pressed compact, the wherein 3.5 tons/cm of unit pressure of compression process2。
4, sintering processes
The carbon brush pressed compact suppressed is placed with high temperature sintering furnace, under nitrogen and hydrogen shield, it is burnt
Knot processes；Wherein, the ratio of nitrogen and hydrogen is 60%:40%；Sintering process conditions is: will in 10h
In high temperature sintering furnace, temperature rise is to 600 DEG C, is then incubated 1h, i.e. obtains carbon brush first product after being cooled to room temperature；To carbon brush
First product carries out physical performance index detection, and testing result is shown in Table 1.
5, finished product processed
Carbon brush first product is carried out ground, to obtain final product；As it is shown in figure 5, the present embodiment prepare carbon brush and commutation
The side of device contact is bending cambered surface, and described cambered surface is used for contacting with diverter with the handing-over line of high lubricating layer.
Table 1 carbon brush physical property detection table
| Performance indications | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 |
| Bulk density (g/cm3) | 3.00 | 2.89 | 2.90 | 2.46 | 2.95 |
| Resistivity (μ Ω .m) | 0.80 | 1.85 | 1.65 | 2.05 | 1.05 |
| Shore hardness (HS) | 20 | 22 | 20 | 25 | 20 |
Claims (10)
1. the material being used for preparing seat motor carbon brush, it is characterised in that described carbon brush includes that height is led
Electric layer and high lubricating layer, be to be prepared via a method which to form:
By electrolytic copper powder, native graphite and phenol-formaldehyde resin powder mix homogeneously, prepare high connductivity layer compound；
By uniform to electrolytic copper powder, native graphite and the mix lubricant containing hexamethylenamine, prepare high lubricating layer and mix
Close material；
Described high lubricating layer compound and high connductivity layer compound are added separately in described mould, it is carried out
Compression process, prepares carbon brush pressed compact；
Described carbon brush pressed compact is sintered, prepares carbon brush first product；
Described brush first product is carried out ground, obtains brush finished product.
2. material as claimed in claim 1, it is characterised in that in described lubricant, described Wu Luotuo
Product with the weight of other raw material are: hexamethylenamine 5-10, other raw material 90-150.
3. material as claimed in claim 2, it is characterised in that other raw material of described lubricant includes sky
So graphite powder, molybdenum bisuphide and liquid phenolic resin, it with the weight of hexamethylenamine is:
Hexamethylenamine 5-10, natural graphite powder 35-55；
Hexamethylenamine 5-10, molybdenum bisuphide 35-55；
Hexamethylenamine 5-10, liquid phenolic resin 20-40.
4. material as claimed in claim 1, it is characterised in that described high lubricating layer compound is by as follows
Prepared by method:
At normal temperatures, by natural graphite powder, molybdenum bisuphide and hexamethylenamine mix homogeneously, prepare and expect at the beginning of lubricant；
Liquid phenolic resin is added in material at the beginning of described lubricant and stir, prepare mix lubricant material；
The mix lubricant material having vapored away described volatile matter carries out pulverization process, prepares lubricant；
Described lubricant is joined the tentatively electrolytic copper powder of mix homogeneously, natural graphite powder and phenolic resin
In powder, stir, prepare high lubricating layer compound.
5. seat motor carbon brush as claimed in claim 1, it is characterised in that described high connductivity layer is mixed
Close material and high lubricating layer compound be added separately to mould and include:
First described high connductivity layer compound is put in described mould；
Again described high lubricating layer compound is put on the described high connductivity layer compound in described mould；
Then, copper soft whipping wire is inserted described high connductivity layer compound via high lubricating layer compound in described mould
Within.
6. seat motor carbon brush as claimed in claim 5, it is characterised in that described high connductivity layer mixes
The bed of material is the 1/2-4/5 of total compound thickness；The described high lubricating layer mixing bed of material is total compound thickness
1/5-1/2；The plug wire degree of depth of described copper soft whipping wire is the 1/2-4/5 of total thickness of feed layer in described mould.
7. seat motor carbon brush as claimed in claim 1, it is characterised in that described high connductivity layer is mixed
Close material and high lubricating layer compound be added separately to mould and include:
First described high lubricating layer compound is put in described mould；
Again described high connductivity layer compound is put on the described high lubricating layer compound in described mould；
Then, copper soft whipping wire is inserted described high lubricating layer compound via high connductivity layer compound in described mould
Within.
8. seat motor carbon brush as claimed in claim 7, it is characterised in that described high lubricating layer mixes
The bed of material is the 1/5-1/2 of total compound thickness；The described high connductivity layer mixing bed of material is total compound thickness
1/2-4/5；The plug wire degree of depth of described copper soft whipping wire is the 1/2-4/5 of total thickness of feed layer in described mould.
9. seat motor carbon brush as claimed in claim 1, it is characterised in that described high connductivity layer is mixed
Close material and high lubricating layer compound be added separately to mould and include:
First a part of described high connductivity layer compound is put into and described mould is formed the mixing of ground floor high connductivity layer
Material；
Again described high lubricating layer compound is put on the described high connductivity layer compound in described mould；
Then, remaining described high connductivity layer compound is put into the described high lubricating layer compound in described mould
On formed second layer high connductivity layer compound；
Then, within copper soft whipping wire is inserted the compound in described mould.
10. seat motor carbon brush as claimed in claim 9, it is characterised in that described ground floor high connductivity
The layer mixing bed of material is the 1/4-2/5 of total compound thickness；The described high lubricating layer mixing bed of material is total compound thickness
1/5-1/2；Described second layer high connductivity compound layer by layer is the 1/4-2/5 of total compound thickness.
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Cited By (1)
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| CN113054506A (en) * | 2021-05-06 | 2021-06-29 | 浙江凯威碳材料有限公司 | Carbon fiber composite type multi-layer super-wear-resistant carbon brush of condensation fan for automobile and preparation method |
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| CN113054506A (en) * | 2021-05-06 | 2021-06-29 | 浙江凯威碳材料有限公司 | Carbon fiber composite type multi-layer super-wear-resistant carbon brush of condensation fan for automobile and preparation method |
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