CN105666147B - The steel guardrail production line and production technology of epoxy zinc-base polyester composite coating - Google Patents
The steel guardrail production line and production technology of epoxy zinc-base polyester composite coating Download PDFInfo
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- CN105666147B CN105666147B CN201610189570.9A CN201610189570A CN105666147B CN 105666147 B CN105666147 B CN 105666147B CN 201610189570 A CN201610189570 A CN 201610189570A CN 105666147 B CN105666147 B CN 105666147B
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 65
- 238000000576 coating method Methods 0.000 title claims abstract description 42
- 239000011248 coating agent Substances 0.000 title claims abstract description 31
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 28
- 239000010959 steel Substances 0.000 title claims abstract description 28
- 229920000728 polyester Polymers 0.000 title claims abstract description 25
- 239000004593 Epoxy Substances 0.000 title claims abstract description 24
- 238000005516 engineering process Methods 0.000 title claims abstract description 23
- 239000002131 composite material Substances 0.000 title claims abstract description 12
- 230000007613 environmental effect Effects 0.000 claims abstract description 7
- 239000007921 spray Substances 0.000 claims description 51
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 25
- 239000000843 powder Substances 0.000 claims description 22
- 239000011701 zinc Substances 0.000 claims description 21
- 229910052725 zinc Inorganic materials 0.000 claims description 21
- 238000005507 spraying Methods 0.000 claims description 19
- 238000005406 washing Methods 0.000 claims description 19
- 239000002585 base Substances 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 11
- 238000002360 preparation method Methods 0.000 claims description 11
- 238000003466 welding Methods 0.000 claims description 11
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 10
- 229910000077 silane Inorganic materials 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000005422 blasting Methods 0.000 claims description 9
- 238000002203 pretreatment Methods 0.000 claims description 8
- 238000005238 degreasing Methods 0.000 claims description 7
- 206010053615 Thermal burn Diseases 0.000 claims description 6
- 239000004480 active ingredient Substances 0.000 claims description 6
- 239000003513 alkali Substances 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 239000003822 epoxy resin Substances 0.000 claims description 6
- 238000003801 milling Methods 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 6
- 229920000647 polyepoxide Polymers 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 5
- 238000002444 silanisation Methods 0.000 claims description 4
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 3
- 235000015511 Liquidambar orientalis Nutrition 0.000 claims description 3
- 239000004870 Styrax Substances 0.000 claims description 3
- 235000000126 Styrax benzoin Nutrition 0.000 claims description 3
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 3
- 239000002518 antifoaming agent Substances 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 claims description 3
- 150000002460 imidazoles Chemical class 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 239000005011 phenolic resin Substances 0.000 claims description 3
- 229920001568 phenolic resin Polymers 0.000 claims description 3
- 239000000049 pigment Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 229910052882 wollastonite Inorganic materials 0.000 claims description 3
- 239000010456 wollastonite Substances 0.000 claims description 3
- 229910052726 zirconium Inorganic materials 0.000 claims description 3
- 244000028419 Styrax benzoin Species 0.000 claims 1
- 238000005246 galvanizing Methods 0.000 abstract description 21
- 239000004698 Polyethylene Substances 0.000 abstract description 8
- 229920000573 polyethylene Polymers 0.000 abstract description 8
- 230000007115 recruitment Effects 0.000 abstract description 6
- 230000002421 anti-septic effect Effects 0.000 abstract description 5
- 230000004888 barrier function Effects 0.000 abstract description 2
- 229920006334 epoxy coating Polymers 0.000 abstract description 2
- 239000000047 product Substances 0.000 description 20
- 238000012913 prioritisation Methods 0.000 description 8
- 239000003431 cross linking reagent Substances 0.000 description 4
- 238000007711 solidification Methods 0.000 description 4
- 230000008023 solidification Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 235000013312 flour Nutrition 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 3
- 241000736148 Styrax Species 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- PTFCDOFLOPIGGS-UHFFFAOYSA-N Zinc dication Chemical compound [Zn+2] PTFCDOFLOPIGGS-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005237 degreasing agent Methods 0.000 description 1
- 239000013527 degreasing agent Substances 0.000 description 1
- 238000003618 dip coating Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 150000003751 zinc Chemical class 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/06—Metal-working plant comprising a number of associated machines or apparatus
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The present invention relates to a kind of the steel guardrail production lines and production technology of epoxy zinc-base polyester composite coating,Highway barrier production line is automatic production line,From strip feeding,It is once completed to formed product,Product quality is stablized,Recruitment is few,It is efficient,The steel guardrail of production uses the double layer anticorrosive structure of " zinc-base epoxy coating+polyester coatings ",Substitute traditional galvanizing,Galvanizing+polyester,Galvanizing+polyethylene technology,Product quality is stablized,Antiseptic property is good,Service life is long,Coating uniformity can not only be met,Coating is very poor,The requirement of coating antiseptic performance,Coating is very poor to be no more than 40um,And service life also extends 20% or more than conventional products,The production process environmental protection of steel guardrail,It is pollution-free,Coating curing temperatures only need 200 DEG C,And galvanizing is then 450 DEG C,Save the energy,The heat energy loss of production reduces by 60% or more.
Description
Technical field
The present invention relates to a kind of steel guardrail and its preparation processes, are suitable for double anti-corrosion steel guardrails, especially suitable
In the steel guardrail of epoxy zinc-base polyester composite coating, specifically, the present invention relates to a kind of compound paintings of epoxy zinc-base polyester
The steel guardrail production line and production technology of layer.
Background technology
Steel guardrail on internal and international at present, mainly there is galvanizing, galvanizing+polyester coatings, galvanizing+poly- second
Three kinds of product forms of ene coatings, all there are some defects in these product forms, specific as follows：
1, high energy consumption.Generally at 450 DEG C or so, zinc-plated production needs to consume very high thermal energy hot dip galvanizing process temperature.And
And production temperature is higher, effective utilization rate of thermal energy is lower, and most of thermal energy scatters and disappears in vain, causes the waste of national energy.Heat
The product of zinc-plated+polyethylene coating, when dip-coating polyethylene, workpiece is also required to be heated to 280 DEG C or so, further increases thermal energy
It uses.
2, not environmentally.Zinc belongs to heavy metal scope, and in hot dip galvanizing production process, pre-treatment will produce a large amount of acid mist, zinc
Ion discharges, and zinc-plated link will produce a large amount of zinc powder dirt, although manufacturing enterprise all takes environmental protection measure, but still some
Acid mist, zinc are flowed into environment, cause environmental pollution；Moreover, zinc product is in use, zinc is by the corrosion of rainwater, no
Disconnected dissolving enters in environment, causes environmental pollution.
3, recruitment is more.The current most mechanization degree of galvanizing enterprise is not high, zinc-plated manually to produce mostly.And hot dip
Zinc+polyethylene coating, the product manufacturing process of galvanizing+polyester coatings are again very long, and recruitment further increases.
4, unstable product quality.Especially galvanizing+polyester coatings, galvanizing+polyethylene coating, since zinc belongs to difficult
The binding force of the metal of application, coating and zinc layers is the weakness of product, becomes the basic factor in limit product service life.And these are produced
Product undergo multiple flows when producing, and further increase the fluctuation of quality.
5, the wasting of resources.Especially galvanizing+polyester coatings, galvanizing+polyethylene coating, traditional production technology cause
The film thickness difference of coating is very big, fluctuates generally in 80 ~ 120um, these extra thickness cause the very big wave of national resources
Take.
In recent years, country strengthened environmental protection and the control of the energy, and the production technology of traditional steel guard rail cannot meet
The demand of society is badly in need of a kind of energy-saving and environmental protection of exploitation, the new product that antiseptic property is excellent, recruitment is few.
Invention content
The technical problem to be solved by the present invention is in view of the above problems, providing a kind of epoxy zinc-base polyester composite coating
Steel guardrail production line is once completed from strip feeding to formed product, and obtained product quality is stablized, and recruitment is few, efficiency
It is high.
The present invention also provides a kind of production technology of the steel guardrail of epoxy zinc-base polyester composite coating, production process rings
It protects, is pollution-free, energy saving, heat energy loss is low.
In order to solve the above technical problems, the technical scheme is that：The production line include corrugated sheet production equipment and
Column production equipment.
A kind of prioritization scheme, the corrugated sheet production equipment include ramming head, and ramming head is equipped with two groups, first group of ramming head for pair
The front of corrugated sheet carries out Shot Blasting, and second group of ramming head is used to carry out Shot Blasting to the back side of corrugated sheet；
There are two first group of ramming head is set, the angle between first group of two ramming head is 78 °；
Second group of ramming head also is provided with two, and the angle between second group of two ramming head is 68 °.
Another prioritization scheme, the corrugated sheet production equipment include spray gun, and spray gun is equipped with two groups, first group for realizing
The positive spraying of workpiece, second group of spraying for realizing back of work；
First group of spray gun is equipped with 4, and 4 are scattered in 2 layers spray gun, and centre 2 is arranged spray gun on upper layer, is respectively aligned to waveform
The center line of the intermediate both sides of plate, and perpendicular to the face, away from plate 25cm；Spray gun cloth in lower layer, is respectively aligned to corrugated sheet by outside 2
The center line of outside both sides, and perpendicular to the face, away from plate 25cm；Upper layer and lower layer spray gun spacing is 30cm；
Second group of spray gun is equipped with 5, and 5 are scattered in 3 layers spray gun, and centre 1 is arranged spray gun on upper layer, is aligned in corrugated sheet
Between hill center line, and perpendicular to the face, closely intermediate 2 spray gun are arranged in middle level, alignment corrugated sheet hill two sides
Center line, and perpendicular to the face, outermost 2 is arranged spray gun in bottom, the center line of two outsides of alignment corrugated sheet, and perpendicular to this
Face, the distance between adjacent two layers spray gun are respectively 30cm.
The present invention also provides a kind of production technology of the steel guardrail using above-mentioned production line, the production technology includes
Corrugated sheet and the automatic upper and lower pieces step of column.
A kind of prioritization scheme, the production technology include column molding welding step, are molded in welding step using environmental protection
Alkali formula antirust, control alkali concentration 0.5% ~ 1%, temperature is at 40 ~ 80 DEG C, and the inside and outside wall moisture of column is after leaving welding sequence
Internal control in 3 minutes is net.
Another prioritization scheme, the production technology include spraying bottom powder step, and bottom powder uses epoxy zinc-based powder, epoxy
The active ingredient and its proportioning of zinc-based powder is：E12 epoxy resin 13%, 904 solid epoxy resins 24%, phenolic resin 10%,
907 curing agent 24%, V205 crosslinking agents 15%, styrax 0.4%, imidazoles 1.5%, antifoaming agent 1%, pigment 3%, wollastonite 8.1%.
The preparation process of another prioritization scheme, the bottom powder includes：Proportionally by 3 ~ 5 points of each active ingredient batch mixing
Clock, then 115 DEG C of melting extrusions, broken, milling carry out bonding after milling in 80 ~ 83 DEG C and flake zinc powder, and bonding ratio is
3:2, the content of zinc finally in the powder is 40%.
Further prioritization scheme, the production technology include chemical pre-treatment step, the processing of chemical pre-treatment step
Technique is：Degreasing → first time softening washing → second of softening washing → silane treatment → third time softening washing → the four time
Softening is washed → is scalded.
The mode of further prioritization scheme, the degreasing is fountain processing, and 50 ~ 70 DEG C of temperature sprays 1 minute；
Silane treatment uses zirconium system silane finish, and processing mode is fountain, the spray of control pH=3.5 ~ 4.5,20 ~ 40 DEG C
Leaching 1 minute；
Scald and scalded using softened water, the mode of scalding is fountain, scald water conductivity be no more than 100ms, temperature be 50 ~
It 70 DEG C, sprays 1 minute；
After silanization treatment, conversion film is in blue or brown.
Further prioritization scheme softens in water-washing step, second, the 4th softened water require conductivity to be no more than
100ms, water-washing method are washed for fountain, washing time 1 minute.
The present invention is had the following advantages compared with prior art using above technical scheme：Highway barrier production line is complete
Automatic assembly line is once completed from strip feeding to formed product, and product quality is stablized, and recruitment is few, efficient, the public affairs of production
Road steel guard rail substitutes traditional galvanizing, galvanizing+poly- using the double layer anticorrosive structure of " zinc-base epoxy coating+polyester coatings "
Ester, galvanizing+polyethylene technology, product quality is stable, antiseptic property is good, service life is long, can successfully substitute various hot dips
The guardrail of zinc class realizes the latest national standards GB/T18226-2015 requirements of highway steel guard rail, can not only meet coating
Uniformity, coating be very poor, coating antiseptic performance requirement, and coating is very poor to be no more than 40um, and service life compares conventional products
Also extend 20% or more.
The production process of the steel guardrail is environmentally friendly, pollution-free, meets the policy requirements of country；In addition, curing of coatings
Temperature only needs 200 DEG C, and galvanizing is then 450 DEG C, with galvanizing+polyester, galvanizing+polyethylene anti-corrosion pattern compared with, section
The energy is saved, the heat energy loss of production reduces by 60% or more.
The present invention is described in detail with reference to the accompanying drawings and examples.
Description of the drawings
Attached drawing 1 is the structural schematic diagram of steel guardrail production line in the embodiment of the present invention 1；
Attached drawing 2 is the structural schematic diagram of ramming head arrangement mode in the embodiment of the present invention 1；
Attached drawing 3 is the structural schematic diagram of spray gun arrangement mode in the embodiment of the present invention 1.
Specific implementation mode
Embodiment 1, as shown in Figure 1, the steel guardrail production line of epoxy zinc-base polyester composite coating, the production line packet
Include corrugated sheet production equipment and column production equipment.
Corrugated sheet production equipment includes mainly corrugated sheet cold roll forming module, corrugated sheet Shot Blasting module, corrugated sheet
Processing module, corrugated sheet automatic piece supplying module, corrugated sheet two-double spray coating module, corrugated sheet automatic piece unloading and packaging module are learned, respectively
It is connected automatically between module, without artificial.
As shown in Fig. 2, corrugated sheet, due to complex-shaped, ball blast difficulty is larger, the corrugated sheet Shot Blasting module uses
Specific ramming head arrangement, ramming head are equipped with two groups, each one group up and down, above one group of ramming head be used to carry out the front of corrugated sheet
Shot Blasting, following set ramming head are used to carry out Shot Blasting to the back side of corrugated sheet, above there are two one group of ramming head sets, this two
A ramming head is arranged before and after the conveying direction of corrugated sheet, above angle between one group of two ramming head be 78 °, following set ramming head
Two also are provided with, which is arranged before and after the conveying direction of corrugated sheet, and the angle between two ramming heads of following set is
68°。
As shown in figure 3, the corrugated sheet two-double spray coating module includes gun system, gun system is fixed for realizing workpiece
Spraying carries out precise positioning on the basis of spray gun using gathering chain to workpiece, and spray gun uses tribo-gun, spray gun to be equipped with two groups,
First group for realizing the positive spraying of workpiece, second group of spraying for realizing back of work, first group of spray gun is equipped with 4,4
Spray gun is scattered in 2 layers, centre 2 is arranged spray gun on upper layer, is respectively aligned to the center line of the intermediate both sides of corrugated sheet, and perpendicular to
The face, away from plate 25cm；Spray gun cloth in lower layer, is respectively aligned to the center line of the outside both sides of corrugated sheet, and perpendicular to this by outside 2
Face, away from plate 25cm；Upper layer and lower layer spray gun spacing is 30cm.Second group of spray gun is equipped with 5, and 5 are scattered in 3 layers spray gun, centre 1
The center line of spray gun setting hill among upper layer, alignment corrugated sheet, and perpendicular to the face；2 among closely exist spray gun setting
Middle level, the center line of alignment corrugated sheet hill two sides, and perpendicular to the face；Outermost 2 is arranged spray gun in bottom, to waveform
The center line of two outsides of plate, and perpendicular to the face；The distance between adjacent two layers spray gun is respectively 30cm, and corrugated sheet applies after spraying
Layer overall thickness is very poor to be no more than 40um.
Column production equipment includes column molding welding module, column biochemical processing module, column automatic piece supplying module, stands
Column two-double spray coating module, column automatic piece unloading and packaging module, are connected between each module, automatically without artificial.Column molding weldering
Connection module for realizing before the molding and welding of column ball blast and derusting.
Remaining structure can be used equipment in the prior art and be realized in production line in the present embodiment, in the present embodiment
In no longer repeat one by one.
Embodiment 2, the production technology of the steel guardrail of epoxy zinc-base polyester composite coating, the production technology includes wave
The preparation process of shape plate and the preparation process of column.
The preparation process of the corrugated sheet includes：Strip feeding → cold roll forming → Shot Blasting → dedusting → automatic piece supplying
→ chemistry pre-treatment → drying → spraying bottom powder → solidification → spraying flour → solidification → automatic piece unloading → automatic inspection → automatic
Packaging.
The preparation process of the column includes：Strip feeding → ball blast → dedusting → molding welding → automatic piece supplying → chemistry
Pre-treatment → spraying bottom powder → solidification → spraying flour → solidification → automatic piece unloading is → automatic to examine → to pack automatically.
In the preparation process of column, it is molded process antirust in welding step, is prevented using the alkali formula of environmental protection in the present embodiment
Rust, control alkali concentration is 0.5% ~ 1%, and temperature is at 40 ~ 80 DEG C, and the inside and outside wall moisture of column is 3 minutes preferably after leaving welding sequence
Internal control is net.The column crossed through antirust treatment can not return rust within 48 hours.
In the preparation process of corrugated sheet and the preparation process of column, chemical pre-treatment is using silanization treatment, the work
The specific treatment process of sequence is：Degreasing → first time softening washing → second of softening washing → silane treatment → third time softening
→ the four softening of washing is washed → is scalded.
Wherein, degreasing uses the dedicated degreasing agent of silane, is commercial products.Degreasing mode is fountain processing, temperature
50 ~ 70 DEG C of degree sprays 1 minute.
Softening washing shares four times, and second of softening washing is that overflow is washed, and first time softening washing is given to supplement；The
It is that overflow is washed that four softenings, which are washed, to be washed for third time softening, with using water wisely.Second, the 4th softened water is wanted
Conductivity is asked to be no more than 100ms.Water-washing method is washed for fountain, washing time 1 minute.
Silane treatment is commercial products using zirconium system silane finish, and processing mode is fountain, controls pH=3.5
~ 4.5,20 ~ 40 DEG C spray 1 minute.
Scald and scalded using softened water, the mode of scalding is fountain, scald water conductivity be no more than 100ms, temperature be 50 ~
It 70 DEG C, sprays 1 minute.
After silanization treatment, conversion film is in blue or brown.
In the spraying bottom powder step of corrugated sheet and the spraying bottom powder step of column, bottom powder uses epoxy zinc-based powder, epoxy
The active ingredient and its proportioning of zinc-based powder is：E12 epoxy resin 13%, 904 solid epoxy resins 24%, phenolic resin 10%,
907 curing agent 24%, V205 crosslinking agents 15%, styrax 0.4%, imidazoles 1.5%, antifoaming agent 1%, pigment 3%, wollastonite 8.1%；Its
In, curing agent uses 907 curing agent, is commercial products, and crosslinking agent uses V205 crosslinking agents, is commercial products.
The preparation process of the epoxy zinc-based powder is：By the active ingredient batch mixing 3 ~ 5 minutes of aforementioned proportion, then 115
DEG C melting extrusion, broken, milling carry out bonding after milling in 80 ~ 83 DEG C and flake zinc powder, and bonding ratio is 3:2, zinc is final
Content in the powder is 40% or so.
The bottom powder and flour of workpiece are respectively adopted spray module and are sprayed, and coating curing temperatures only need 200 DEG C.
The automatic upper and lower pieces step of workpiece include the automatic piece supplying of corrugated sheet, the automatic piece unloading of corrugated sheet, column it is automatic
Piece uploading, column four modules of automatic piece unloading.
The automatic piece supplying of corrugated sheet, corrugated sheet are transmitted to piece uploading process, electromagnetism railway traction to riser station, waveform by roller-way
Plate is holded up, and hanger positions and hanger is hung on fabrication hole by manipulator, completes the automatic piece supplying of corrugated sheet；
The automatic piece unloading of corrugated sheet is converse by the above process.
The automatic piece supplying of column, column is delivered to by transfer roller looks for hole process, after hole site is fixed, is grabbed and is sent by manipulator
To hexagonal turntable and upright, turntable rotation makes column reach immediately below hanger, looks for hole pendant to act by manipulator completion；Column is certainly
Dynamic lower part presses corrugated sheet automatic piece unloading scheme.Automatic upper and lower pieces considerably reduce labor intensity, while saving artificial.
Using equipment with the production line in embodiment 1 in the present embodiment, repeated no more in the present embodiment.
Production line using the present invention and production technology prepare steel guardrail, the steel guardrail include corrugated sheet and
Column, corrugated sheet include corrugated sheet ontology, and corrugated sheet ontology is equipped with epoxy zinc base coat and polyester coatings, and bottom is epoxy zinc
Base coating, thickness are 36 ~ 56 um, and face layer is polyester coatings, and thickness is 70 ~ 90 um.Column includes column ontology, column ontology
Epoxy zinc base coat and polyester coatings are equipped with, bottom is epoxy zinc base coat, and thickness is 46 ~ 66 um, and face layer is that polyester applies
Layer, thickness are 60 ~ 80 um, and the inner and outer wall coating structure of column is identical.
The above is the citing of best mode for carrying out the invention, wherein the part that do not address in detail is that this field is common
The common knowledge of technical staff.Protection scope of the present invention is based on the contents of the claims, any technology based on the present invention
The equivalent transformation of enlightenment and progress, also within protection scope of the present invention.
Claims (4)
1. the steel guardrail production line of epoxy zinc-base polyester composite coating, it is characterised in that：The production line includes corrugated sheet
Production equipment and column production equipment；
The corrugated sheet production equipment includes spray gun, and spray gun is equipped with two groups, first group for realizing the positive spraying of workpiece, second
Group for realizing back of work spraying；
First group of spray gun is equipped with 4, and 4 are scattered in 2 layers spray gun, and centre 2 is arranged spray gun on upper layer, is respectively aligned to corrugated sheet
The center line of intermediate both sides, and perpendicular to the face, away from plate 25cm；Spray gun cloth in lower layer, is respectively aligned to the outside of corrugated sheet by outside 2
The center line of both sides, and perpendicular to the face, away from plate 25cm；Upper layer and lower layer spray gun spacing is 30cm；
Second group of spray gun is equipped with 5, and 5 are scattered in 3 layers spray gun, and centre 1 is arranged spray gun convex among upper layer, alignment corrugated sheet
The center line at peak, and perpendicular to the face, closely intermediate 2 spray gun are arranged in middle level, the center line of alignment corrugated sheet hill two sides,
And perpendicular to the face, outermost 2 is arranged spray gun in bottom, the center line of two outsides of alignment corrugated sheet, and perpendicular to the face, phase
The distance between adjacent two layers of spray gun is respectively 30cm；
The corrugated sheet production equipment includes ramming head, and ramming head is equipped with two groups, and first group of ramming head is used to carry out the front of corrugated sheet
Shot Blasting, second group of ramming head are used to carry out Shot Blasting to the back side of corrugated sheet；
There are two first group of ramming head is set, the angle between first group of two ramming head is 78 °；
Second group of ramming head also is provided with two, and the angle between second group of two ramming head is 68 °；
The production technology of the steel guardrail includes corrugated sheet and the automatic upper and lower pieces step of column；
The production technology includes column molding welding step, is molded in welding step using the alkali formula antirust of environmental protection, controls alkali
Concentration is 0.5% ~ 1%, and for temperature at 40 ~ 80 DEG C, the internal control in 3 minutes after leaving welding sequence of the inside and outside wall moisture of column is net；
The production technology includes spraying bottom powder step, and bottom powder uses epoxy zinc-based powder, the active ingredient of epoxy zinc-based powder
And its proportioning is：E12 epoxy resin 13%, 904 solid epoxy resins 24%, phenolic resin 10%, 907 curing agent 24%, V205 are handed over
Join agent 15%, styrax 0.4%, imidazoles 1.5%, antifoaming agent 1%, pigment 3%, wollastonite 8.1%；
The preparation process of the bottom powder includes：Proportionally by each active ingredient batch mixing 3 ~ 5 minutes, then 115 DEG C of melting extrusions,
It is crushed, milling, bonding is carried out in 80 ~ 83 DEG C and flake zinc powder after milling, bonding ratio is 3:2, zinc is finally in the powder
Content is 40%；
The coating of the steel guardrail is very poor to be no more than 40 μm.
2. the steel guardrail production line of epoxy zinc-base polyester composite coating as described in claim 1, it is characterised in that：It is described
Production technology further includes chemical pre-treatment step, and the treatment process of chemical pre-treatment step is：Degreasing → first time softening washing
→ second softening washing → silane treatment → third time softening → the four softening of washing is washed → is scalded.
3. the steel guardrail production line of epoxy zinc-base polyester composite coating as claimed in claim 2, it is characterised in that：It is described
The mode of degreasing is fountain processing, and 50 ~ 70 DEG C of temperature sprays 1 minute；
Silane treatment uses zirconium system silane finish, and processing mode is fountain, and control pH=3.5 ~ 4.5,20 ~ 40 DEG C spray 1 point
Clock；
It scalds and is scalded using softened water, the mode of scalding is fountain, scalds water conductivity and is no more than 100ms, temperature is 50 ~ 70
DEG C, it sprays 1 minute；
After silanization treatment, conversion film is in blue or brown.
4. the steel guardrail production line of epoxy zinc-base polyester composite coating as claimed in claim 2, it is characterised in that：Softening
In water-washing step, second, the 4th softened water require conductivity to be no more than 100ms, water-washing method is that fountain is washed, and is washed
1 minute time.
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| CN109877544B (en) * | 2019-04-09 | 2022-07-26 | 山东中海达金属科技有限公司 | Production process for novel online treatment of surface of protective guard |
| CN110421212A (en) * | 2019-08-26 | 2019-11-08 | 德清金瑞机械设备有限公司 | Steel guard rail production line with adjustable cutting equipment |
| CN111068995B (en) * | 2020-01-15 | 2023-12-26 | 潍坊东方钢管有限公司 | Full-automatic production device for double-station powder solidification of guardrail upright posts |
| CN113634425B (en) * | 2021-10-13 | 2022-07-19 | 山东海川智能装备科技有限公司 | Two-spraying and one-fixing device and process for corrosion-resistant workpiece with composite coating |
| CN114250026A (en) * | 2022-01-18 | 2022-03-29 | 广东德福生新材料科技有限公司 | Efficient anticorrosive powder coating and preparation method and processing and using method thereof |
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| CN1038987C (en) * | 1994-12-23 | 1998-07-08 | 中国公路工程咨询监理总公司 | Method for prodn. of corrugated guardrail plate |
| DE10330210A1 (en) * | 2003-07-03 | 2005-01-20 | Sms Demag Ag | Apparatus for producing hot-rolled hot strip, in particular from strip-shaped continuously cast semi-finished material |
| CN1321747C (en) * | 2005-09-06 | 2007-06-20 | 贵州科盛彩色喷涂有限公司 | Outdoor metal surface double coating antiseptic chromatic spray painting method |
| CN100431776C (en) * | 2006-02-11 | 2008-11-12 | 鞍山市发蓝钢带有限责任公司 | Automatic production line for producing high-strength color coated package steel strip by utilizing non-tempering process |
| CN200967938Y (en) * | 2006-09-08 | 2007-10-31 | 徐州正菱涂装有限公司 | Highway guard bar with hot-spraying zinc polyester composite coating |
| CN101899253B (en) * | 2010-07-09 | 2012-08-29 | 孟鋆辉 | Wear-resistant and high temperature-resistant powder coating for preventing corrosion of inside and outside of steel pipeline |
| CN103526706A (en) * | 2013-10-09 | 2014-01-22 | 大连理工大学 | A thermoformed high-strength road guardrail and its preparation process |
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