CN1167835A - Wire for silver-tin oxide or indium oxide electric contact and producing method thereof - Google Patents
Wire for silver-tin oxide or indium oxide electric contact and producing method thereof Download PDFInfo
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- CN1167835A CN1167835A CN 97106893 CN97106893A CN1167835A CN 1167835 A CN1167835 A CN 1167835A CN 97106893 CN97106893 CN 97106893 CN 97106893 A CN97106893 A CN 97106893A CN 1167835 A CN1167835 A CN 1167835A
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- silver
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- electric contact
- tin oxide
- indium oxide
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Abstract
An Ag-SnO-In2O3 wire material used for electric contact contains such components (Wt%) as Sn (3-9), In (1.5-6), Ni (0.1-0.5), Zn (0.1-0.5)and Ag (the rest), and is made up through smelting Ag ingot, Sn, Ni, Zn and In, casting ingots, crushihng, high-temp high-pressure oxidation, crushing, press shaping, high-temp extruding to obtain strips or bands, and hot drawing. Said wire material has good machining preformance and can be used to make compound bimetal rivet to replace Agcdo contact in high-power relay. The Agcdo contact can pollute environment
Description
The present invention relates to a kind of wire for silver-tin oxide or indium oxide electric contact and production technique thereof based on silver.It is mainly used in makes bimetal composite rivet contact, is widely used in high power relay.
Though the silver-tin oxide or indium oxide electric contact material had the history of research and development and the application in 20 years, this process still continues into the present, and the key issue of its existence is process for processing characteristic that it is difficult to and relatively poor cycling processability.Therefore, this product still rests on the production simple shape at present, does not need to carry out on the strip-form contacts of any mechanical workout when assembling is used, and does not possess the cycling processability of making the bimetal composite rivet.
The object of the present invention is to provide a kind of have easier process for processing feature, the wire for silver-tin oxide or indium oxide electric contact and the production technique thereof of cycling processability preferably.
The present invention is achieved in that a kind of wire for silver-tin oxide or indium oxide electric contact based on silver, and it contains 3～9%Sn, 1.5～6%In, and surplus is Ag, the summation of each component is 100% (weight percentage).
Above-mentioned wire for silver-tin oxide or indium oxide electric contact based on silver, this material also contains the Ni that accounts for total amount 0.1～0.5%, to improve the machinability of material.
Above-mentioned wire for silver-tin oxide or indium oxide electric contact based on silver also contains Zn and the 0.05～0.2%Sb that accounts for total amount 0.1～0.5% in this material, or has at least wherein a kind ofly, with electric property that improves material and the content that reduces indium, saves cost.
Above-mentioned wire for silver-tin oxide or indium oxide electric contact based on silver, Sn is 4～7% in the component, In is 2～5%.
Above-mentioned wire for silver-tin oxide or indium oxide electric contact based on silver, Sn is 5～6% in the component, In is 3～4%.
Production technique of the present invention is:
Silver ingot, Sn, Ni, Zn, Sb, In are placed smelting furnace melting and ingot casting, processing is pulverized, obtain siller tin oxide oxidation mixed phase material through the High Temperature High Pressure oxidation, through the mechanical workout fragmentation, with chip extrusion forming in punching block, at high temperature push slivering, band, can obtain siller tin oxide oxidation wire product through drawing.
The temperature of above-mentioned High Temperature High Pressure oxidation is 760～860 ℃, and pressure is 4～6Kg/cm
2, soaking time 20～36 hours, the Heating temperature of extruding slivering, band is 780～890 ℃.
The temperature of above-mentioned High Temperature High Pressure oxidation is 790～860 ℃, and pressure is 4～6Kg/cm
2, soaking time 24～30 hours, the temperature of extruding slivering, band is 820～840 ℃.
The extrusion ratio of above-mentioned high temperature extrude bar, band is 1: 144～450, and the extruding form is reverse extrusion.
The extrusion ratio of above-mentioned high temperature extrude bar, band is 1: 171～320, and the extruding form is reverse extrusion.
Compare with articles of sheet material with existing electrical contact, the present invention is owing to added other necessary element components in starting material, adopted special complete processing, thereby the processing characteristics that reaches production process is good, and possess the reprocessing excellent characteristic that to make the bimetal composite rivet, thereby siller tin oxide oxidation wire production is achieved.Satisfy high power relay and used the requirement of bimetal composite rivet contact.Can partly replace Agcdo to be applied to high power relay.Avoided of the pollution of production application process in Agcdo contact to environment.Have equally with silver-colored oxidation every the same joint silver effect.
Fig. 1 is a process flow sheet of the present invention.
Below in conjunction with accompanying drawing implementation process of the present invention being done one describes in detail:
Example one: take by weighing the 14.72Kg silver ingot, place medium-frequency induction furnace to melt, add 0.8Kg tin and 0.48Kg indium subsequently successively, after homogenizing, billet is cast in scarfing cinder, cuts around mouth and removing surface impurity, cut into pieces, be heated to 760～820 ℃ in the high pressure vessel of packing into, inject 6Kg/cm
2Oxygen, be incubated 36 hours, then already oxidised fragment is broken into granule again, extrusion forming in the punching block of packing into is squeezed into the web of φ 6.0 with billet of moulding under 820～860 ℃ of high temperature, become the wire product of φ 1.3～5.0mm through hot pull.
Example two: take by weighing the 14.64Kg silver ingot, place medium-frequency induction furnace to melt, add 0.08Kg nickel, 0.8Kg tin and 0.48Kg indium subsequently successively, technological process is with example one, but the high temperature oxidation temperature is 800～840 ℃, and other processing condition are with example one.
Example three: take by weighing the 14.644Kg silver ingot, place medium-frequency induction furnace to melt, add 0.86Kg tin subsequently successively, 0.032Kg nickel, 0.016Kg zinc, 0.008Kg antimony and 0.48Kg indium, after homogenizing, billet is cast in scarfing cinder, pulverizes after cutting cast gate and removing surface impurity, packing into is heated to 760～820 ℃ in the high pressure vessel, injects 6Kg/cm
2Oxygen, be incubated 36 hours, then already oxidised fragment is broken into granule again, extrusion forming in the punching block of packing into is squeezed into the web of φ 6.0 with the garden spindle of moulding under 820～890 ℃ of high temperature, become the wire product of φ 1.3～5.0mm through hot pull.
Example four: take by weighing the 16.608Kg silver ingot, place medium-frequency induction furnace to melt, add 0.88Kg tin, 0.048Kg nickel, 0.016Kg antimony, 0.0448Kg indium subsequently successively, technological process is with example one, but the high temperature oxidation temperature is 820～860 ℃, and the injection oxygen pressure is 5Kg/cm
2, soaking time is 28 hours, high temperature is squeezed into the web of φ 5.0, becomes the wire rod of φ 1.3～5.0mm through hot pull, can obtain the good wire product of processing characteristics equally.
Claims (10)
1, a kind of wire for silver-tin oxide or indium oxide electric contact is characterized in that it contains 3～9%Sn, 1.5～6%In, and surplus is Ag, the summation of each component is 100% (weight percentage).
2, a kind of wire for silver-tin oxide or indium oxide electric contact according to claim 1 is characterized in that also containing in this material the Ni that accounts for total amount 0.1～0.5%.
3, a kind of wire for silver-tin oxide or indium oxide electric contact according to claim 1 and 2 is characterized in that also containing Zn and the 0.05～0.2%Sb that accounts for total amount 0.1～0.5% in this material, or has at least wherein a kind of.
4, according to one of them described a kind of wire for silver-tin oxide or indium oxide electric contact of claim 1-3, it is characterized in that the Sn in the component is 4～7%, In is 2～5%.
5, a kind of wire for silver-tin oxide or indium oxide electric contact according to claim 4 is characterized in that Sn is 5～6% in the component, and In is 3～4%.
6, a kind of production technique of wire for silver-tin oxide or indium oxide electric contact is characterized in that its processing method is:
Silver ingot, Sn, Ni, Zn, Sb, In are placed smelting furnace melting and ingot casting, processing is pulverized, obtain silver-tin oxide or indium oxide mixed phase material through the High Temperature High Pressure oxidation, through the mechanical workout fragmentation, with chip extrusion forming in punching block, at high temperature push slivering, band, can obtain the silver-tin oxide or indium oxide wire product through drawing.
7, a kind of wire for silver-tin oxide or indium oxide electric contact according to claim 6 is characterized in that: under 760～860 ℃ of high temperature, inject 4～6kg/cm
2Oxygen, be incubated 20～36 hours, the temperature of extruding slivering, band is 780～890 ℃.
8, a kind of wire for silver-tin oxide or indium oxide electric contact according to claim 7 is characterized in that: under 790～860 ℃ of high temperature, inject 4～6kg/cm
2Oxygen, be incubated 24～30 hours, the temperature of extruding slivering, band is 820～840 ℃.
9, according to one of them described a kind of wire for silver-tin oxide or indium oxide electric contact of claim 6～8, it is characterized in that: the extrusion ratio of high temperature extrude bar, band is 1: 144～450, and the extruding form is reverse extrusion.
10, a kind of wire for silver-tin oxide or indium oxide electric contact according to claim 9 is characterized in that: the extrusion ratio of high temperature extrude bar, band is 1: 171～320, and the extruding form is reverse extrusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97106893 CN1167835A (en) | 1997-03-17 | 1997-03-17 | Wire for silver-tin oxide or indium oxide electric contact and producing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97106893 CN1167835A (en) | 1997-03-17 | 1997-03-17 | Wire for silver-tin oxide or indium oxide electric contact and producing method thereof |
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| Publication Number | Publication Date |
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| CN1167835A true CN1167835A (en) | 1997-12-17 |
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| CN 97106893 Pending CN1167835A (en) | 1997-03-17 | 1997-03-17 | Wire for silver-tin oxide or indium oxide electric contact and producing method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100430504C (en) * | 2003-01-06 | 2008-11-05 | 王乃千 | Siver-tin indium composite oxide as electric contact material and its its preparing process |
| CN101950592A (en) * | 2010-09-09 | 2011-01-19 | 浙江乐银合金有限公司 | Method for manufacturing silver tin oxide indium oxide contact alloy material and manufactured alloy thereof |
| CN101973759A (en) * | 2010-09-07 | 2011-02-16 | 昆明理工大学 | Preparation method of noble metal doped In2O3/SnO3 porous-channel structured gas-sensitive material |
| CN102154572A (en) * | 2011-05-25 | 2011-08-17 | 宁波汉博贵金属合金有限公司 | Method for preparing sliver-tin oxide and indium oxide electrical contact material by gradient internal oxidation method and material thereof |
| CN102176336A (en) * | 2010-12-30 | 2011-09-07 | 温州宏丰电工合金股份有限公司 | Preparation method of silver-based oxide electrical contact material with filamentary structure |
| CN111091983A (en) * | 2019-12-18 | 2020-05-01 | 佛山市诺普材料科技有限公司 | Silver tin oxide indium oxide electrical contact material and preparation process thereof |
-
1997
- 1997-03-17 CN CN 97106893 patent/CN1167835A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100430504C (en) * | 2003-01-06 | 2008-11-05 | 王乃千 | Siver-tin indium composite oxide as electric contact material and its its preparing process |
| CN101973759A (en) * | 2010-09-07 | 2011-02-16 | 昆明理工大学 | Preparation method of noble metal doped In2O3/SnO3 porous-channel structured gas-sensitive material |
| CN101973759B (en) * | 2010-09-07 | 2012-11-28 | 昆明理工大学 | Preparation method of noble metal doped In2O3/SnO3 porous-channel structured gas-sensitive material |
| CN101950592A (en) * | 2010-09-09 | 2011-01-19 | 浙江乐银合金有限公司 | Method for manufacturing silver tin oxide indium oxide contact alloy material and manufactured alloy thereof |
| CN101950592B (en) * | 2010-09-09 | 2013-02-13 | 浙江乐银合金有限公司 | Method for manufacturing silver tin oxide indium oxide contact alloy material and manufactured alloy thereof |
| CN102176336A (en) * | 2010-12-30 | 2011-09-07 | 温州宏丰电工合金股份有限公司 | Preparation method of silver-based oxide electrical contact material with filamentary structure |
| CN102154572A (en) * | 2011-05-25 | 2011-08-17 | 宁波汉博贵金属合金有限公司 | Method for preparing sliver-tin oxide and indium oxide electrical contact material by gradient internal oxidation method and material thereof |
| CN102154572B (en) * | 2011-05-25 | 2012-12-19 | 宁波汉博贵金属合金有限公司 | Method for preparing sliver-tin oxide and indium oxide electrical contact material by gradient internal oxidation method |
| CN111091983A (en) * | 2019-12-18 | 2020-05-01 | 佛山市诺普材料科技有限公司 | Silver tin oxide indium oxide electrical contact material and preparation process thereof |
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