CN101034631A - Electrical contact material based on the AgSnO2 and ytterbia and its production technique - Google Patents
Electrical contact material based on the AgSnO2 and ytterbia and its production technique Download PDFInfo
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- CN101034631A CN101034631A CN 200710020956 CN200710020956A CN101034631A CN 101034631 A CN101034631 A CN 101034631A CN 200710020956 CN200710020956 CN 200710020956 CN 200710020956 A CN200710020956 A CN 200710020956A CN 101034631 A CN101034631 A CN 101034631A
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- ytterbium
- tin oxide
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Abstract
The invention relates to an electric contact material which based on silver tin oxide ytterbium oxide, it is the silver substrate with the tinoxide and ytterbium oxide, the portion of tin oxide in the materialthe is 3.0-10%, the portion of ytterbium oxide is 1-9%, the remainder is the silver. Its craft step is: put the silver, the tin and the ytterbium in the smelting furnace smelting and ingot casting, processing to detritus, obtain the mix material which is based on the silver tin oxide ytterbium oxide after the high temperature high pressure oxidation, through machine-finishing broken, pressurize the detritus in the steel die takes shape, Then extrude into bar, belt material under the high temperature, again passes through drawing obtain the line material product which take the silver tin oxide ytterbiumoxide as the foundation; or the silver, the tin,the ytterbium powder mix and suppressing on spindles, extrude to bar, belt material, passes through drawing obtain the line material product which take the silver tin oxide ytterbiumoxide as the foundation. The invention has the easier production processing characteristic and better retreatment performance, also the low material cost.
Description
Technical field:
The present invention relates to a kind of contact material and production technology thereof, especially relate to a kind of contact material and production technology thereof based on the siller tin oxide ytterbium oxide.Be mainly used in the electric contact of use such as the appliance switch of making various relays, contactor and the bimetallic composite rivet electric contact of high power relay use etc.
Before the present invention made, the contact material that widely uses mainly contained Ag-ZnO tin oxide, siller tin oxide cupric oxide, Ag-ZnO indium oxide and silver-tin oxide or indium oxide etc. at present.They exist some advantages and deficiency separately:
Ag-ZnO tin oxide and siller tin oxide copper oxide material cost are lower, but because of its fragility is bigger, cause its electrical property relatively poor, and production and processing characteristic and cycling processability are also relatively poor.
Ag-ZnO indium oxide and silver-tin oxide or indium oxide have electrical property better, easier production and processing characteristic and cycling processability preferably, but the key issue of its existence is material cost higher (indium is than also expensive 2～3 times of silver).
Summary of the invention:
The objective of the invention is to overcome above-mentioned deficiency, provide a kind of and not only had, electrical property, easier production and processing characteristic and cycling processability and material cost but also low contact material and production technology thereof preferably preferably based on the siller tin oxide ytterbium oxide, make wire rod and various contact easily, satisfy appliance switch instructions for uses such as various relays, contactor, to substitute more expensive Ag-ZnO indium oxide or silver-tin oxide or indium oxide contact material.
The object of the present invention is achieved like this: a kind of contact material based on the siller tin oxide ytterbium oxide, it is to contain tin oxide and ytterbium oxide (Yb in silver matrix
2O
3), the share of tin oxide is 3.0～10 percentage by weights in the material, and the share of ytterbium oxide is 1～9 percentage by weight, and surplus is a silver, and each components contents sum is 100%.
In the above-mentioned contact material based on the siller tin oxide ytterbium oxide, the preferred share of tin oxide and ytterbium oxide is: the share of tin oxide is 6～8.5 percentage by weights, and the share of ytterbium oxide is 3.5～8 percentage by weights.
In the above-mentioned contact material based on the siller tin oxide ytterbium oxide, the most preferably share of tin oxide and ytterbium oxide is: the share of tin oxide is 8～9 percentage by weights, and the share of ytterbium oxide is 5.5～7 percentage by weights.
Also contain a kind of of nickel, calcium or several in the material of the present invention.To improve the machinability of material, improve the electric property of material and reduce silver-colored content, save cost.
Manufacturing technique method of the present invention is: silver ingot, tin and ytterbium are placed smelting furnace melting and ingot casting, be processed into chip, obtain mixing phase material through the HTHP oxidation based on the siller tin oxide ytterbium oxide, through the machining fragmentation, with chip extrusion forming in punching block, at high temperature push slivering, band then, the process drawing obtains the wire product based on the siller tin oxide ytterbium oxide again; Or with silver, tin oxide, ytterbium oxide powder and briquetting, extruding slivering, band, the process drawing obtains the wire product based on the siller tin oxide ytterbium oxide.
The temperature of the HTHP oxidation of production technology of the present invention is 760～860 ℃, and injects 4～6kg/cm
2Oxygen, temperature retention time 20～36 hours, the extruding slivering heating-up temperature be 780～890 ℃.
Compare with existing contact material, the present invention adds tin and ytterbium and forms contact material based on the siller tin oxide ytterbium oxide in silver matrix, replace more expensive indium in Ag-ZnO indium oxide or the silver-tin oxide or indium oxide (ytterbium be indium price 1/25) with the cheaper ytterbium of price, reach the equal production and processing characteristic of Ag-ZnO indium oxide or silver-tin oxide or indium oxide and preferably in the cycling processability, reducing the material cost of the material of contact material widely.
The physical and mechanical properties of wire rod is:
Specification: φ 1.12～3.90mm
Density: 〉=9.83g/cm
3
Hardness: H
v4.9N＞800Mpa
Resistivity :≤2.4 μ cm
Tensile strength:＞230Mpa
Elongation:＞12%.
The compound rivet of the siller tin oxide ytterbium oxide contact of making meets every specification requirement of GB11096-89 fully.
Description of drawings
Fig. 1 is technological process of production figure of the present invention.
Embodiment
Example 1: take by weighing the 14.95kg silver ingot, place intermediate frequency furnace to melt, add 0.42kg tin and 0.63kg ytterbium subsequently successively, after homogenizing, billet is cast in scarfing cinder, cuts cast gate and removes surface impurity, cut into pieces, be heated to 760～860 ℃ in the high-pressure bottle of packing into, inject 4～6kg/cm
2Oxygen, be incubated 20～36 hours, then already oxidised fragment is processed into broken granule with punch press again, pack into and add the billet that is pressed into the long 250mm of φ 68mm in the punching block, the billet of moulding is squeezed into the web of φ 4.0mm under 780～890 ℃ of high temperature, becomes the wire product of φ 1.12～3.9mm through hot pull.
Example 2: as described in example 1, add the ytterbium of 14.53kg silver, 1.4kg tin and 0.07kg respectively, all the other are all with example 1.
Example 3: as described in example 1, difference is to add respectively the ytterbium of 14.612kg silver, 0.828kg tin and 0.56kg, and all the other are all with example 1.
Example 4: as described in example 1, difference is to add respectively the ytterbium of 14.565kg silver, 1.19kg tin and 0.245kg, and all the other are all with example 1.
Example 5: as described in example 1, difference is to add respectively the ytterbium of 14.38kg silver, 1.13kg tin and 0.49kg, and all the other are all with example 1.
Example 6: as described in example 1, difference is to add respectively the ytterbium of 14.355kg silver, 1.26kg tin and 0.385kg, and all the other are all with example 1.
Example 7: as described in example 1, difference is that the addition of silver is 14.942, adds 0.008kg nickel or calcium again, and all the other are all with example 1.
Example 8: as described in example 1, difference is that the addition of silver is 14.87, adds 0.08kg nickel or calcium again, and all the other are all with example 1.
Example 9: as described in example 1, difference is that the addition of silver is 14.862, adds 0.008kg nickel and 0.08kg calcium again, or adds 0.08kg nickel and 0.008kg calcium, and all the other are all with example 1.
Example 10: stir briquetting with silver, tin oxide, ytterbium oxide with the powder of above-mentioned different formulations, the extruding slivering, the process drawing obtains the contact material based on the siller tin oxide ytterbium oxide equally.
Example 10: stir briquetting with silver, tin oxide, nickel oxide, calcium oxide, ytterbium oxide with the powder of above-mentioned different formulations, the extruding slivering, the process drawing obtains the contact material based on the siller tin oxide ytterbium oxide equally.
Claims (7)
1, a kind of contact material based on the siller tin oxide ytterbium oxide, it is characterized in that it is to contain tin oxide and ytterbium oxide in silver matrix, the share of tin oxide is 3.0～10 percentage by weights in the material, the share of ytterbium oxide is 1～9 percentage by weight, surplus is a silver, and each components contents sum is 100%.
2, a kind of contact material according to claim 1 based on the siller tin oxide ytterbium oxide, the share that it is characterized in that tin oxide in the material is 6～8.5 percentage by weights, the share of ytterbium oxide is 3.5～8 percentage by weights.
3, a kind of contact material according to claim 1 based on the siller tin oxide ytterbium oxide, the share that it is characterized in that tin oxide in the material is 8～9 percentage by weights, the share of ytterbium oxide is 5.5～7 percentage by weights.
4,, it is characterized in that also containing in the material a kind of of nickel oxide, calcium oxide or several according to claim 1,2 or 3 described a kind of contact materials based on the siller tin oxide ytterbium oxide.
5, the production technology of the described contact material based on the siller tin oxide ytterbium oxide of a kind of claim 1, it is characterized in that its processing step is: silver ingot, tin and ytterbium are placed smelting furnace melting and ingot casting, be processed into chip, obtain mixing phase material through the HTHP oxidation based on the siller tin oxide ytterbium oxide, through the machining fragmentation, with chip extrusion forming in punching block, at high temperature push slivering, band then, the process drawing obtains the wire product based on the siller tin oxide ytterbium oxide again; Or with silver, tin, ytterbium powder and briquetting, extruding slivering, band, the process drawing obtains the wire product based on the siller tin oxide ytterbium oxide.
6, the production technology of a kind of contact material based on the siller tin oxide ytterbium oxide according to claim 5, the temperature that it is characterized in that the HTHP oxidation is 760～860 ℃, and inject the oxygen of 4～6kg/cm2, temperature retention time 20～36 hours, the heating-up temperature of extruding slivering is 780～890 ℃.
7, according to the production technology of claim 5 or 6 described a kind of contact materials based on the siller tin oxide ytterbium oxide, it is characterized in that also being added with in the described smelting furnace nickel, calcium with silver ingot, tin and ytterbium melting and ingot casting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100209568A CN100498993C (en) | 2007-04-05 | 2007-04-05 | Electrical contact material based on the AgSnO2 and ytterbia and its production technique |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100209568A CN100498993C (en) | 2007-04-05 | 2007-04-05 | Electrical contact material based on the AgSnO2 and ytterbia and its production technique |
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| CN101034631A true CN101034631A (en) | 2007-09-12 |
| CN100498993C CN100498993C (en) | 2009-06-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102328086A (en) * | 2011-10-20 | 2012-01-25 | 福达合金材料股份有限公司 | Method for preparing silver tin oxide electrical contact |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100477044C (en) * | 2004-06-21 | 2009-04-08 | 乐清市帕特尼触头有限公司 | Contact consisted of silver, nickel, rare-earth oxide and carbon, and method for producing same |
| CN1299307C (en) * | 2004-12-08 | 2007-02-07 | 昆明贵金属研究所 | Silver-tin oxide electrical contact material and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102328086A (en) * | 2011-10-20 | 2012-01-25 | 福达合金材料股份有限公司 | Method for preparing silver tin oxide electrical contact |
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| CN100498993C (en) | 2009-06-10 |
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Granted publication date: 20090610 Termination date: 20100405 |