CN101136287A - Method for manufacturing high temperature resistant silver oxide contact material - Google Patents
Method for manufacturing high temperature resistant silver oxide contact material Download PDFInfo
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- CN101136287A CN101136287A CNA2007100499151A CN200710049915A CN101136287A CN 101136287 A CN101136287 A CN 101136287A CN A2007100499151 A CNA2007100499151 A CN A2007100499151A CN 200710049915 A CN200710049915 A CN 200710049915A CN 101136287 A CN101136287 A CN 101136287A
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- silver
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- temperature resistant
- high temperature
- oxide
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- NDVLTYZPCACLMA-UHFFFAOYSA-N silver oxide Chemical compound [O-2].[Ag+].[Ag+] NDVLTYZPCACLMA-UHFFFAOYSA-N 0.000 title claims abstract description 48
- 239000000463 material Substances 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 42
- 229910001923 silver oxide Inorganic materials 0.000 title claims abstract description 29
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 229910001316 Ag alloy Inorganic materials 0.000 claims abstract description 43
- 238000010791 quenching Methods 0.000 claims abstract description 37
- 230000000171 quenching effect Effects 0.000 claims abstract description 34
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical group [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000004332 silver Substances 0.000 claims abstract description 22
- 229910052709 silver Inorganic materials 0.000 claims abstract description 18
- 238000002844 melting Methods 0.000 claims abstract description 9
- 230000008018 melting Effects 0.000 claims abstract description 8
- 229910052751 metal Inorganic materials 0.000 claims abstract description 8
- 239000002184 metal Substances 0.000 claims abstract description 8
- 239000002245 particle Substances 0.000 claims abstract description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000001301 oxygen Substances 0.000 claims abstract description 6
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 6
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052797 bismuth Inorganic materials 0.000 claims abstract description 4
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052793 cadmium Inorganic materials 0.000 claims abstract description 4
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 claims abstract description 4
- 238000007796 conventional method Methods 0.000 claims abstract description 4
- 229910044991 metal oxide Inorganic materials 0.000 claims abstract description 4
- 150000004706 metal oxides Chemical class 0.000 claims abstract description 4
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 4
- 239000011701 zinc Substances 0.000 claims abstract description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 3
- 229910052802 copper Inorganic materials 0.000 claims abstract description 3
- 239000010949 copper Substances 0.000 claims abstract description 3
- 229910052738 indium Inorganic materials 0.000 claims abstract description 3
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 claims abstract description 3
- 229910052742 iron Inorganic materials 0.000 claims abstract description 3
- 229910052718 tin Inorganic materials 0.000 claims abstract description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 12
- 230000003647 oxidation Effects 0.000 claims description 12
- 238000007254 oxidation reaction Methods 0.000 claims description 12
- 239000007789 gas Substances 0.000 claims description 9
- 229910052786 argon Inorganic materials 0.000 claims description 7
- 238000003723 Smelting Methods 0.000 claims description 5
- 229910045601 alloy Inorganic materials 0.000 claims description 5
- 239000000956 alloy Substances 0.000 claims description 5
- 239000011159 matrix material Substances 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 abstract description 4
- 238000013461 design Methods 0.000 abstract description 3
- 238000005275 alloying Methods 0.000 abstract description 2
- 239000000696 magnetic material Substances 0.000 abstract description 2
- 238000004321 preservation Methods 0.000 abstract 1
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 8
- CXKCTMHTOKXKQT-UHFFFAOYSA-N cadmium oxide Inorganic materials [Cd]=O CXKCTMHTOKXKQT-UHFFFAOYSA-N 0.000 description 4
- CFEAAQFZALKQPA-UHFFFAOYSA-N cadmium(2+);oxygen(2-) Chemical compound [O-2].[Cd+2] CFEAAQFZALKQPA-UHFFFAOYSA-N 0.000 description 4
- 239000011787 zinc oxide Substances 0.000 description 4
- 229910000416 bismuth oxide Inorganic materials 0.000 description 3
- TYIXMATWDRGMPF-UHFFFAOYSA-N dibismuth;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Bi+3].[Bi+3] TYIXMATWDRGMPF-UHFFFAOYSA-N 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 3
- 229910001887 tin oxide Inorganic materials 0.000 description 3
- 230000004927 fusion Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 229910001152 Bi alloy Inorganic materials 0.000 description 1
- 229910000925 Cd alloy Inorganic materials 0.000 description 1
- IWFDZFPZDWBPHT-UHFFFAOYSA-N [Bi].[Sn](=O)=O Chemical compound [Bi].[Sn](=O)=O IWFDZFPZDWBPHT-UHFFFAOYSA-N 0.000 description 1
- NSAODVHAXBZWGW-UHFFFAOYSA-N cadmium silver Chemical compound [Ag].[Cd] NSAODVHAXBZWGW-UHFFFAOYSA-N 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 101150095744 tin-9.1 gene Proteins 0.000 description 1
- 239000011882 ultra-fine particle Substances 0.000 description 1
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Abstract
本发明为耐高温银氧化物触头材料的制作方法，步骤为：I、一定重量比的锡、锌、镉、铋、铜、铟、铁的任意1～7种及余量为银的金属熔融后，保温，完全合金化，用单辊快淬甩带机获得银合金条带。冷淬辊子的转速为3m/s～30m/s。II、在500～750℃，0.1～10MPa的氧气压力下12～24小时将银合金条带氧化。III、按常规方法加工为触头材料。本法制备的材料中金属氧化物粒子细小，硬度(HV0.3)最高可达130，且不会随温升而降低，所制触头能在85℃的条件下稳定工作，耐高温、抗熔焊性能好；采用现有的制作磁性材料的单辊快淬甩带设备，改进其喷嘴形状与大小，调整温度、快淬过程气氛等条件，即可获得快淬银合金条带，无需设计新设备，且操作易掌握。
The present invention is the manufacture method of high-temperature resistant silver oxide contact material, and the steps are: 1, any 1～7 kinds of tin, zinc, cadmium, bismuth, copper, indium, iron of a certain weight ratio and the metal whose balance is silver After melting, heat preservation, complete alloying, and obtain silver alloy strips with a single-roller quick quenching strip machine. The speed of the chilled roll is 3m/s～30m/s. II. Oxidize the silver alloy strips at 500-750° C. under an oxygen pressure of 0.1-10 MPa for 12-24 hours. III. Process it into contact material according to conventional methods. The metal oxide particles in the material prepared by this method are fine, and the hardness (HV0.3) can reach up to 130, and will not decrease with the temperature rise. Good welding performance; use the existing single-roller quick-quenching strip equipment for making magnetic materials, improve the shape and size of the nozzle, adjust the temperature, the atmosphere of the quick-quenching process, etc., to obtain quick-quenching silver alloy strips, no need to design New equipment, and easy to operate.
Description
(1) technical field
The present invention relates to the manufacture method of silver oxide contact tip material, be specially a kind of manufacture method of high temperature resistant silver oxide contact tip material.
(2) background technology
Along with electrical equipment constantly develops to high-power, small size direction, the current density that contact material carried in the electrical equipment is increasing, and the temperature rise of contact material also strengthens thereupon.Under some particular surroundingss, require electrical equipment at high temperature to work simultaneously, therefore the also corresponding rising of the working temperature of contact material requires the contact material resistance to elevated temperatures to get well.
The main preparation methods of silver oxide contact tip material mainly contains alloy inner oxidation method, powder mixing method, powder oxidizing process, chemical coating method etc. at present.The gained silver oxide contact tip material is owing to have conduction, heat conduction and anti-melting welding preferably, anti-electroerosion ability, in electrical equipment such as relay, contactor, circuit breaker, obtained to use widely, but at present the material electric life at high temperature prepared of method is often far below the electric life under the normal temperature, and the silver oxide contact electric life when working under 85 ℃ of conditions only is 20%～30% when working under 25 ℃ of conditions.
Therefore in order to satisfy the requirement of each electric appliances development, need the manufacture method of a kind of high temperature resistant silver oxide contact tip material of research and development, the gained contact material can be 85 ℃ high temperatures work, the hardness of material is higher, and can not reduce, have good heat-resistance, resistance fusion welding energy with the rising of temperature.
(3) summary of the invention
The objective of the invention is to disclose a kind of manufacture method of high temperature resistant silver oxide contact tip material, combine quick quenching technique and internal oxidation, obtain to have the high temperature resistant silver oxide contact tip material of ultrafine particle.
The manufacture method of high temperature resistant silver oxide contact tip material of the present invention comprises the steps:
The I quick quenching technique obtains the silver alloy band
Being tin 2%～18% and/or zinc 2%～15% and/or cadmium 8%～20% and/or bismuth 0.1%～5% and/or copper 0.1%～15% and/or indium 0.1%～8% and/or iron 5%～15% surplus with percentage by weight forms silver alloy, 1050～1500 ℃ of smelting temperatures for the metal melting of silver.Behind the metal melting, be incubated 10～30 minutes again, make wherein that each element fully spreads, fully alloying.
The silver alloy of molten condition is got rid of band machine acquisition silver alloy band with single roller rapid quenching.
1. for guaranteeing to continuously produce the silver alloy bandlet, the outlet of designs of nozzles ovalisation, nozzle minor axis 2～5mm, major axis 7～15mm;
2. in order to make quick quenching band in the fast quenching process, carry out oxidation, shorten the follow-up oxidation operation time, reduce cost, in the process of fast quenching pressurising, add air in certain amount in the argon gas of pressurising, it is 5～35% that the air of adding accounts for the total weight ratio, realizes the pre-oxidation of fast quenching alloy strip;
3. in order to obtain the quick quenching band that thickness meets the demands, pressurising makes it to quicken mass flowing nozzle to silver alloy solution, and the total pressure of air and argon gas is 0.02～0.08MPa during pressurising, and the thickness of gained band is 0.1～0.5mm.
4. the rotating speed of cold quenching roller is 3m/s～30m/s.
Be oxidized to the band that silver and oxide mix in the II silver alloy band
The alloy inner oxidation method is carried out interior oxidation to the silver alloy band routinely, obtains the band that silver and oxide mix.
At 500～750 ℃, the silver alloy band was oxidized to the band that silver and oxide mix in 12～24 hours under the oxygen pressure of 0.1～10Mpa, metal oxide is evenly distribution in silver matrix, and oxide particle is of a size of and is less than or equal to 5 μ m.
The band Mechanical Crushing briquetting according to a conventional method that III silver and oxide mix is squeezed into wire rod or sheet material, reprocesses to be final contact material.
The advantage of the manufacture method of the high temperature resistant silver oxide contact tip material of the present invention is: 1, metal oxide particle is tiny in the material of this law preparation, material hardness (HV0.3) can reach 100～130, and hardness can not reduce with the rising of temperature, this law prepare the made contact of material can be under 85 ℃ condition steady operation, have good heat-resistance, resistance fusion welding energy; 2, adopt the single roller rapid quenching of existing making magnetic material to get rid of carrying device, improve its nozzle form and size, adjust conditions such as temperature, fast quenching process atmosphere, can obtain fast quenching silver alloy band, need not to design new equipment, and operation is grasped more easily.
(4) description of drawings
Fig. 1 gets rid of band acquisition silver alloy band schematic diagram for the manufacture method embodiment step I single roller rapid quenching of this high temperature resistant silver oxide contact tip material.
Number in the figure is: molten silver alloy 1, cold quenching roller 2, silver alloy band 3.
(5) embodiment
The I quick quenching technique obtains silver-colored sn-bi alloy band
Silver 90%, tin 9%, bismuth 1% are fused into the silver alloy of molten condition in intermediate frequency furnace.1050～1500 ℃ of smelting temperatures behind the metal melting, are incubated 30 minutes again.
As shown in Figure 1, the silver alloy 1 usefulness single roller rapid quenching with molten condition gets rid of band machine acquisition silver alloy band 2.Get rid of the band machine nozzle for oval, minor axis 3mm, major axis 10mm; In the fast quenching process, with argon gas weight account for 80% and air weight account for 20% gas pressurized 0.05MPa, the rotating speed of cold quenching roller 2 is 16m/s, gained silver alloy band 3 thickness are 0.2 mm.
Be oxidized to the band of silver and tin oxide, bismuth oxide mixing in the II silver alloy band
At 500 ℃, following 24 hours of the oxygen pressure of 10Mpa, with the oxidation of silver alloy band, tin oxide and bismuth oxide evenly distribute in silver matrix, and the tin oxide particle is 0.08～0.2 μ m, and the bismuth oxide particle is 0.1～0.2 μ m.
The band Mechanical Crushing briquetting according to a conventional method that III silver and tin oxide bismuth oxide mix is squeezed into wire rod or sheet material under the pressure of 900 ℃ temperature, 200MPa, reprocess to be final contact material.Material hardness (HV0.3) is: 130.
The I quick quenching technique obtains silver-colored kirsite band
Silver 92%, zinc 8% are fused into the silver alloy of molten condition in intermediate frequency furnace.1050～1500 ℃ of smelting temperatures behind the metal melting, are incubated 20 minutes again.
The silver alloy 1 usefulness single roller rapid quenching of molten condition is got rid of band machine acquisition silver alloy band 3.Getting rid of the band machine nozzle is the ellipse of minor axis 5mm, major axis 15mm; In the fast quenching process, with argon gas weight account for 65% and air weight account for 35% mist pressurization 0.08MPa, the rotating speed of cold quenching roller 2 is 3m/s, gained silver alloy beam thickness is 0.5mm.
Be oxidized to the band that silver and zinc oxide mix in the II silver alloy band
At 750 ℃, zinc oxide evenly distributed in silver matrix the oxygen pressure of 0.2Mpa with the oxidation of silver alloy band in following 18 hours, and the zinc oxide particle is less than or equal to 3 μ m.
The band Mechanical Crushing briquetting routinely that III silver and zinc oxide mix is squeezed into wire rod or sheet material under the pressure of 850 ℃ temperature, 200MPa, reprocess to be contact material.Material hardness (HV0.3) is: 110.
The I quick quenching technique obtains the silver-cadmium alloy band
Silver 89%, cadmium 11% are fused into the silver alloy of molten condition in intermediate frequency furnace.1050～1500 ℃ of smelting temperatures behind the metal melting, are incubated 10 minutes again.
The silver alloy of molten condition is got rid of band machine acquisition silver alloy band with single roller rapid quenching.Getting rid of the band machine nozzle is minor axis 2mm, major axis 7mm ellipse; In the fast quenching process, with argon gas weight account for 95% and air weight account for 5% gas pressurized 0.02MPa, the rotating speed of cold quenching roller is 30m/s, gained silver alloy beam thickness is 0.1mm.
Be oxidized to the band that silver and cadmium oxide mix in the II silver alloy band
At 600 ℃, cadmium oxide evenly distributed in silver matrix the oxygen pressure of 0.1Mpa with the oxidation of silver alloy band in following 12 hours, and the cadmium oxide particle is less than or equal to 5 μ m.
The band Mechanical Crushing briquetting routinely that III silver and cadmium oxide mix is squeezed into wire rod or sheet material under the pressure of 850 ℃ temperature, 200MPa, reprocess to be contact material.Material hardness (HV0.3) is: 100.
Claims (9)
1. the manufacture method of a high temperature resistant silver oxide contact tip material is characterized in that comprising the steps:
The I quick quenching technique obtains the silver alloy band, with percentage by weight is tin 2%～18% and/or zinc 2%～15% and/or cadmium 8%～20% and/or bismuth 0.1%～5% and/or copper 0.1%～15% and/or indium 0.1%～8% and/or iron 5%～15%, surplus is that the metal melting of silver forms silver alloy, 1050～1500 ℃ of smelting temperatures; The silver alloy of molten condition gets rid of the band machine with single roller rapid quenching and obtains the silver alloy band;
II alloy inner oxidation method routinely carries out interior oxidation to the silver alloy band, obtains the band that silver and oxide mix;
The band Mechanical Crushing briquetting according to a conventional method that III silver and oxide mix is squeezed into wire rod or sheet material, reprocesses to be final contact material.
2. the manufacture method of high temperature resistant silver oxide contact tip material according to claim 1 is characterized in that:
To get rid of the rotating speed that the band machine obtains the cold quenching roller of silver alloy band be 3m/s～30m/s to single roller rapid quenching among the described step I.
3. the manufacture method of high temperature resistant silver oxide contact tip material according to claim 1 and 2 is characterized in that:
After the metal melting of described step I in intermediate frequency furnace forms alloy, be incubated 10～30 minutes again.
4. the manufacture method of high temperature resistant silver oxide contact tip material according to claim 1 and 2 is characterized in that:
The nozzle that the used fast quenching of described step I gets rid of the band machine is oval outlet, its minor axis 2～5mm, major axis 7～15mm.
5. the manufacture method of high temperature resistant silver oxide contact tip material according to claim 1 and 2 is characterized in that:
Described step I gained silver alloy beam thickness is 0.1～0.5mm.
6. the manufacture method of high temperature resistant silver oxide contact tip material according to claim 1 and 2 is characterized in that:
In the fast quenching process of described step I, account for total weight than the argon gas pressurising that is 5～35% air with adding.
7. the manufacture method of high temperature resistant silver oxide contact tip material according to claim 6 is characterized in that:
In the fast quenching process of described step I, the total pressure of air and argon gas is 0.02～0.08Mpa during pressurising.
8. the manufacture method of high temperature resistant silver oxide contact tip material according to claim 1 and 2 is characterized in that:
In the described Step II, the silver alloy band is at 500～750 ℃, the silver alloy band is oxidized in 12～24 hours the band of silver and oxide mixing under the oxygen pressure of 0.1～10Mpa.
9. the manufacture method of high temperature resistant silver oxide contact tip material according to claim 8 is characterized in that:
Metal oxide evenly distributes in silver matrix in the band that gained silver and oxide mix, and oxide particle is of a size of and is less than or equal to 5 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100499151A CN100562956C (en) | 2007-08-29 | 2007-08-29 | Method for manufacturing high temperature resistant silver oxide contact material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100499151A CN100562956C (en) | 2007-08-29 | 2007-08-29 | Method for manufacturing high temperature resistant silver oxide contact material |
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| CN101136287A true CN101136287A (en) | 2008-03-05 |
| CN100562956C CN100562956C (en) | 2009-11-25 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101777438A (en) * | 2010-01-26 | 2010-07-14 | 上海中希合金有限公司 | High-performance silver cadmium oxide material and manufacturing method thereof |
| CN102031438A (en) * | 2010-12-31 | 2011-04-27 | 桂林电器科学研究院 | Sliver stannic oxide electrical contact material and preparation method thereof |
| CN104493178A (en) * | 2014-12-30 | 2015-04-08 | 桂林电器科学研究院有限公司 | Processing method of silver zinc oxide electric contact material containing additive |
| CN108511246A (en) * | 2018-05-28 | 2018-09-07 | 北京梦之墨科技有限公司 | A kind of thin film switch and preparation facilities and method using screen printing mode preparation |
| CN109518029A (en) * | 2018-12-19 | 2019-03-26 | 昆明理工大学 | A kind of preparation method of Ag- graphene contact material |
| CN110983096A (en) * | 2019-12-07 | 2020-04-10 | 福达合金材料股份有限公司 | Method for preparing silver matrix oxide electric contact material by internal oxidation method capable of improving fusion welding resistance |
-
2007
- 2007-08-29 CN CNB2007100499151A patent/CN100562956C/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101777438A (en) * | 2010-01-26 | 2010-07-14 | 上海中希合金有限公司 | High-performance silver cadmium oxide material and manufacturing method thereof |
| CN101777438B (en) * | 2010-01-26 | 2014-08-13 | 上海中希合金有限公司 | High-performance silver cadmium oxide material and manufacturing method thereof |
| CN102031438A (en) * | 2010-12-31 | 2011-04-27 | 桂林电器科学研究院 | Sliver stannic oxide electrical contact material and preparation method thereof |
| CN104493178A (en) * | 2014-12-30 | 2015-04-08 | 桂林电器科学研究院有限公司 | Processing method of silver zinc oxide electric contact material containing additive |
| CN108511246A (en) * | 2018-05-28 | 2018-09-07 | 北京梦之墨科技有限公司 | A kind of thin film switch and preparation facilities and method using screen printing mode preparation |
| CN108511246B (en) * | 2018-05-28 | 2024-05-03 | 北京梦之墨科技有限公司 | Membrane switch prepared by screen printing mode and preparation device and method |
| CN109518029A (en) * | 2018-12-19 | 2019-03-26 | 昆明理工大学 | A kind of preparation method of Ag- graphene contact material |
| CN110983096A (en) * | 2019-12-07 | 2020-04-10 | 福达合金材料股份有限公司 | Method for preparing silver matrix oxide electric contact material by internal oxidation method capable of improving fusion welding resistance |
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| Publication number | Publication date |
|---|---|
| CN100562956C (en) | 2009-11-25 |
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