CN1128400A - Silver-cadmium oxide based electric contact material and its production process - Google Patents
Silver-cadmium oxide based electric contact material and its production process Download PDFInfo
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- CN1128400A CN1128400A CN 95111070 CN95111070A CN1128400A CN 1128400 A CN1128400 A CN 1128400A CN 95111070 CN95111070 CN 95111070 CN 95111070 A CN95111070 A CN 95111070A CN 1128400 A CN1128400 A CN 1128400A
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- silver
- cadmium oxide
- contact material
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Abstract
The said silver-base material contains cadmium oxide and the components of: Ag 80-88%, CdO 12-20% and Ni 0.1-0.2%. The prodn processes are: silver ingot, cadmium ingot and nickel ingot smelting in smelting furnace into cast ingot, crushing the cast ingot, high temp and high-pressure oxidation to obtain silver-cadmium oxide material, moulding in steel mould, high-temp extrution into strip and drawing into wire material. The present invention may save noble metal silver by 8%.
Description
The present invention relates to a kind of contact material and production technology thereof, relate in particular to a kind of contact material and production technology thereof based on Agcdo.
Agcdo is a kind of important slider material for the contact material on basis, and it according to the instructions for use of electric equipment products, has formed a product line at present since obtaining commercial Application in 1940, i.e. AgCaO8, AgCaO10 and AgCdO12.Its product has been widely used in A.C. contactor that rated current is 40～600A and the rated current air switch less than 100A, and heavy load relay and overcurrent protection electrical equipment etc.The production method of the said goods has two kinds; Be powder metallurgic method and alloy inner oxidation method.But all there is shortcoming separately in the product of said method production: promptly the powder metallurgy resistance fusion welding is good, but electric life is low; Alloy internal oxidation method electric life height, but because its external and internal compositions, performance are inconsistent, so its resistance fusion welding is poor.Therefore, the former is mainly used in route protection electrical equipment, and the latter is mainly used in control apparatus.
The object of the present invention is to provide a kind of CdO content higher Agcdo contact material and production technology thereof.
The present invention is achieved in that a kind of contact material based on silver-colored cadmium oxide, it contains cadmium oxide in the alloy substrate of a kind of silver matrix or main argentiferous, its composition scope is: Ag80-88%, CdO12-20%, Ni0.1-0.2%, the summation of each component is 100%.
Above-mentioned contact material based on silver-colored cadmium oxide also contains aluminium and the antimony that accounts for total amount 0.01-0.15% in this material.
Above-mentioned contact material based on silver-colored cadmium oxide, the share of cadmium oxide is 13-19 percentage by weights (total weights that are equivalent to material) in the component.
In the above-mentioned contact material based on silver-colored cadmium oxide, the share of cadmium oxide is 13-19 percentage by weights (total weights that are equivalent to material) in the component.
Above-mentioned contact material based on silver-colored cadmium oxide, the share of cadmium oxide is 14-18 percentage by weights (total weights that are equivalent to material) in the component.
Above-mentioned contact material based on silver-colored cadmium oxide, the share of cadmium oxide is 15-18 percentage by weights (total weights that are equivalent to material) in the component.
Above-mentioned contact material based on silver-colored cadmium oxide, the share of cadmium oxide is 16.2-17.8 percentage by weights (total weights that are equivalent to material) in the component.
The present invention can also be achieved in that a kind of production technology of the contact material based on silver-colored cadmium oxide, and its process is:
Place smelting furnace to be smelted into ingot casting on silver ingot, cadmium ingot and nickel ingot, be processed into chip, obtain a kind of silver cadmium oxide material through the HTHP oxidation, chip is moulding in punching block, in high temperature, be squeezed into the web of certain specification then, draw to dial through drawbench again to obtain wire product.
The temperature of above-mentioned HTHP oxidation is 760-820 ℃, and pressure is 4-6Kg/Cm
2, temperature retention time 10-15 hours, the heating-up temperature that is squeezed into web is 840-900 ℃.
Compare with existing contact material and production technology thereof based on silver-colored cadmium oxide, the present invention is owing to adopted the production technology of pushing behind the initial oxidation, make the external and internal compositions performance unanimity of wire rod, will be with the cadmium oxide content in the contact material on the basis of silver-colored cadmium oxide by 10-12%, do high to 12-20%, and technological process is short, and equipment investment is few, and has equal electric combination property with 10-12% Agcdo.Therefore save noble metal with silver 8%, had good economic lid and the social benefit of imitating.
The physical and mechanical properties of wire rod is:
Specification: φ 1.12-3.90mm
Density: 〉=9.8g/cm
3
Hardness: Hv4.9N＞700MPa
Resistivity :≤2.7 μ Ω .cm
Tensile strength:＞220MPa
Elongation:＞6%
The AgCdO/Cu composite rivet contact of making meets every specification requirement of GB11098-89 fully.
Fig. 1 is a process chart of the present invention.
Below in conjunction with accompanying drawing the present invention is made a detailed description:
Example one:
Take by weighing the silver-nickel 0.62Kg of 25.10Kg silver ingot and nickeliferous 10%, at intermediate frequency furnace in melting, add the cadmium ingot of 4.756Kg subsequently and account for the aluminium and the antimony of total amount 0.01-0.15%, the side's of casting ingot or garden ingot after the scarfing cinder, remove surface impurity and cut cast gate, be processed into chip with lathe or planer or milling machine, be heated to 760-800 ℃ and inject 4-5kg/cm in the high-pressure bottle of packing into
2Oxygen, kept 13-15 hours, chip is pressed into the briquet of the long 250mm of φ 65mm in punching block, be heated to 860-880 ℃ of webs that are squeezed into φ 4.0mm then, pulls into the wire rod of φ 1.12-3.36mm through drawbench.
Example two:
The charge ratio melting side of the casting ingot of use-case one is made sheet alloy band with milling train or extruder, with in bed or shearing machine make fragment, be heated to 800-820 ℃ in the high-pressure bottle of packing into, and inject 6kg/cm
2Oxygen, kept 10-12 hours, again by moulding, extruding condition in the example one, through drawing the wire rod that also can be made into φ 1.12-3.36mm after dialling.
Claims (10)
1, a kind of contact material based on silver-colored cadmium oxide, it contains cadmium oxide in the alloy substrate of a kind of silver matrix or main argentiferous, it is characterized in that containing in this material: Ag80-88%CdO12-20%, Ni0.1-0.2%, the summation of each component is 100%.
2, a kind of contact material based on silver-colored cadmium oxide according to claim 1 is characterized in that also containing in this material aluminium and the antimony that accounts for total amount 0.01-0.15%.
3, a kind of contact material based on silver-colored cadmium oxide according to claim 1 and 2, the share that it is characterized in that cadmium oxide in the component are 13-19 percentage by weights (total weights that are equivalent to material).
4, a kind of contact material according to claim 1 and 2 based on silver-colored cadmium oxide. the share of its feature cadmium oxide in component is 14-18 percentage by weights (total weights that are equivalent to material).
5, a kind of contact material based on silver-colored cadmium oxide according to claim 1 and 2, the share that it is characterized in that cadmium oxide in the component are 15-18 percentage by weights (total weights that are equivalent to material).
6, a kind of contact material based on silver-cadmium oxide according to claim 1 and 2, the share that it is characterized in that cadmium oxide in the component are 16.2-17.8 percentage by weight (total weight that is equivalent to material).
7, a kind of contact material based on silver-colored cadmium oxide according to claim 1 and 2, the share that it is characterized in that cadmium oxide in the component are 16.517.5 percentage by weight (total weight that is equivalent to material).
8, a kind of production technology of the contact material based on silver-colored cadmium oxide is characterized in that its process is:
Place smelting furnace to be smelted into ingot casting on silver ingot, cadmium ingot and nickel ingot, be processed into chip, obtain a kind of silver cadmium oxide material, moulding in punching block again through the HTHP oxidation, in high temperature, be squeezed into the web of certain specification then, just obtain wire product through drawing again.
9, the production technology of a kind of contact material based on silver-colored cadmium oxide according to claim 8 is characterized in that the temperature of HTHP oxidation is 760-820 ℃, and injects 4-6kg/cm
2Oxygen, kept 10-15 hours, the heating-up temperature that is squeezed into web is 840-900 ℃.
10, the production technology of a kind of contact material based on silver-colored cadmium oxide according to claim 8 is characterized in that the temperature of HTHP oxidation is 800-820 ℃, and injects 5-6kg/cm
2Oxygen, kept 8-12 hours, the heating-up temperature that is squeezed into web is 860-880 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95111070A CN1037639C (en) | 1995-06-10 | 1995-06-10 | Silver-cadmium oxide based electric contact material and its production process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95111070A CN1037639C (en) | 1995-06-10 | 1995-06-10 | Silver-cadmium oxide based electric contact material and its production process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1128400A true CN1128400A (en) | 1996-08-07 |
| CN1037639C CN1037639C (en) | 1998-03-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95111070A Expired - Fee Related CN1037639C (en) | 1995-06-10 | 1995-06-10 | Silver-cadmium oxide based electric contact material and its production process |
Country Status (1)
| Country | Link |
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| CN (1) | CN1037639C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102074386A (en) * | 2011-02-18 | 2011-05-25 | 司捷易兰姆布斯控制科技（苏州）有限公司 | Electric contact for touch switch |
| CN101707156B (en) * | 2009-09-24 | 2011-10-05 | 温州宏丰电工合金股份有限公司 | Method for preparing Ag-ZnO-doped electrical contact material |
| CN102395389B (en) * | 2008-11-06 | 2015-12-16 | 多杜科有限公司 | Electrical contact and electric contact point semi-finished product and manufacture method thereof |
| CN105489421A (en) * | 2015-12-29 | 2016-04-13 | 桂林电器科学研究院有限公司 | Preparation method for silver cadmium oxide sheet-shaped electrical contact containing additive |
| CN106868333A (en) * | 2015-12-11 | 2017-06-20 | 靖江市海源新材料科技有限公司 | A kind of new electrical contact material |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2058526U (en) * | 1988-01-13 | 1990-06-20 | 浙江省瑞安市电工合金材料厂 | Silver nickel copper compound electric contact |
| CN1020926C (en) * | 1990-04-23 | 1993-05-26 | 中国有色金属工业总公司昆明贵金属研究所 | Pd-ag substrate alloy material |
-
1995
- 1995-06-10 CN CN95111070A patent/CN1037639C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102395389B (en) * | 2008-11-06 | 2015-12-16 | 多杜科有限公司 | Electrical contact and electric contact point semi-finished product and manufacture method thereof |
| CN101707156B (en) * | 2009-09-24 | 2011-10-05 | 温州宏丰电工合金股份有限公司 | Method for preparing Ag-ZnO-doped electrical contact material |
| CN102074386A (en) * | 2011-02-18 | 2011-05-25 | 司捷易兰姆布斯控制科技（苏州）有限公司 | Electric contact for touch switch |
| CN106868333A (en) * | 2015-12-11 | 2017-06-20 | 靖江市海源新材料科技有限公司 | A kind of new electrical contact material |
| CN105489421A (en) * | 2015-12-29 | 2016-04-13 | 桂林电器科学研究院有限公司 | Preparation method for silver cadmium oxide sheet-shaped electrical contact containing additive |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1037639C (en) | 1998-03-04 |
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| Date | Code | Title | Description |
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| C10 | Entry into substantive examination | ||
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| C06 | Publication | ||
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: JIANGYIN CITY HONGFA ALLOY MATERIAL CO., LTD. Free format text: FORMER NAME OR ADDRESS: HONGFA ALLOY MATERIAL WORKS, JIANGYIN |
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| CP01 | Change in the name or title of a patent holder |
Patentee after: Jiangyin City Hongfa alloy material Co. Ltd. Patentee before: Hongfa Alloy Material Works, Jiangyin |
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| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| IP01 | Partial invalidation of patent right |
Decision date of declaring invalidation: 20050617 Decision number of declaring invalidation: 7370 Case number: 4W00834 Conclusion of examination: Announcement No. 95111070.5 invention patent claims 1-7 is invalid, maintain effective claim 8-10. Decision date: 20050617 Denomination of invention: Silver-cadmium oxide based electric contact material and its production process Granted publication date: 19980304 Patentee: Hongfa Alloy Material Works, Jiangyin Review decision number: 7370 |
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| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |