TOP ＞ Electriccontact(preciousmetalsmaterial)
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Electric contact |
Brazing material |
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Electric contact
Kind and usage of precious metals material
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Faction |
Composition |
Density |
Hardness |
Specific electric conductivity |
Melting point |
Characteristic and usage |
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Ａｕ |
Au | 19.3 | 25～70 | 75 | 1064.4 |
・With stability to the acid and the sulfur compound. (It is excellent in corrosion resistance.) |
・Light load relay |
| 92Au-8Ag | 18.0 | 30～ | 27.8 | 1058 |
・The chemical influence is not received easily. |
・Light load relay |
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| 90Au-10Ag | 17.8 | 40～90 | 16 | 1055 | |||
| 80Au-20Ag | 16.6 | 33～105 | 17.6 | 1045 | |||
| 75Au-25Ag | 16.3 | 50～95 | 16 | 1040 | |||
| 70Au-30Ag | 15.4 | 32～ | 15.6 | 1025 | |||
| 60Au-40Ag | 14.8 | 50～100 | 12 | 1025 | |||
| 69Au-25Ag-6Pt | 16.0 | 90～140 | 11 | 1100 |
・It is excellent in corrosion resistance. |
・Relay for communication apparatus |
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| 95Au-5Ni | 18.3 | 134～274 | 12.9 | 1020 |
・Chemically with stability. |
・Relay for communication apparatus |
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| 70Au-10Ag-5Pt-Cu-Ni | 15.9 | 235～290 | 8.1～113 | 955 | ・A mechanical characteristic like the spring and hardness, etc. is an extremely excellent and light loads. ・It is used as a sliding material and a spring point of contact for. |
・Micro motor | |
| 10Au-30Ag-10Pt-35Pd-Cu-Zn | 11.9 | 265～310 | 4.8～5.3 | 1098 | |||
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Ｐｔ |
Pt | 21.45 | 60～110 | 16 | 1772 | ・The amount of consumption is not welded easily few even if the melting point is high, and it uses it on the condition that contact side partially becomes a high temperature. ・The abundant contact resistance is steady to corrosion resistance and the anti-oxidation. |
・Relay for communication apparatus |
| 90Pt-10Ir | 21.6 | 150～210 | 7.0 | 1800 | ・An extremely high hardness and melting point are stabilized having chemically. ・Corrosion resistance is preeminent. ・It is excellent in the arc-proof, the-proof move, and the hectic-proof. |
・Micro motor ・Electrical equipment for aircraft ・Alarm ・Electrical equipment for car |
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Ｐｄ |
Pd | 12.02 | 40～120 | 16 | 1554 | ・Hardness and wear and abrasion resistance are excellent. ・The alloy that exceeds 40%Pd shows an excellent sulphur resistance. ・As for this alloy, corrosion resistance is also excellent. |
・Relay for telephone ・Micro motor ・Electrical equipment for car |
| 30Ag-70Pd | 11.5 | 90～ | 4.3 | 1430 | |||
| 40Ag-60Pd | 11.4 | 100～200 | 4.3 | 1395 | |||
| 50Ag-50Pd | 11.2 | 100～200 | 5.5 | 1350 | |||
| 60Ag-40Pd | 11.1 | 65～ | 8.2 | 1290 | |||
| 70Ag-30Pd | 10.9 | 70～180 | 6.7 | 1225 | |||
| 20Ag-50Pd-30Cu | 10.7 | 200～450 | 6.3 | 1130 | ・It excels as an extraction stiffening mold fee in wear and abrasion resistance, and it is used for the sliding point of contact material chiefly. | ・Potentiometer ・Brush for motor |
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| 40Ag-40Pd-10Cu | 10.7 | 200～430 | 7.7～14 | 1070 | |||
| 30Ag-40Pd-30Cu | 10.6 | 200～450 | 5.0 | 1065 | |||
| 10Ru-90Pd | 12.02 | 160～340 | 4.8 | 1690 | ・It is used for the sliding point of contact material as an extraction stiffening mold fee. | ・Micro motor | |
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Ａｇ |
Ag | 10.5 | 25～85 | 106 | 961.93 | ・Heat and the electric conductance are large. ・It is excellent in the processability. ・A low contact resistance is shown. ・It is most widely used in all the point of contact materials. |
・PCB relay ・Power relay ・Microswitch |
| 95Ag-5Cu | 10.4 | 50～98 | 82～98 | 910 | ・It is easy to oxidize though hardness and wear and abrasion resistance are improved by adding Cu. ・It is necessary to enlarge the contact pressure. ・When the contact pressure is large, and the sliding operation is caused, it is suitable. |
・Electrical equipment for car ・Rotary switch ・Switch for consumer electronic |
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| 90Ag-10Cu | 10.3 | 80～155 | 82～98 | 875 | |||
| 80Ag-20Cu | 10.2 | 85～ | 82～98 | 870 | |||
| 60Ag-40Cu | 9.8 | 80～170 | 80～90 | 850 | |||
| 95Ag-5Ni | ・It is excellent in wear and abrasion resistance. ・The move consumption at the direct current opening and shutting is a little. ・It is excellent in the-proof welding and the arc-proof. ・The contact resistance is steady. |
・Thermostat ・Power relay ・Electromagnetic switch |
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| 90Ag-10Ni | 10.3 | 80～110 | 87 | 961 | |||
| 85Ag-15Ni | 10.2 | 85～125 | 82 | 961 | |||
| 80Ag-20Ni | 10.1 | 80～ | 82 | 961 | |||
| 75Ag-24.5Cu-0.5Ni | 10.3 | 135 | 68 | 810 | ・The move and consumption comparatively do steady operation few in a low contact force. | ・Vehicle electrical equipment | |
| AgZnO系 AgSnO系 AgSnOInO系 |
・Vehicle relay ・Vehicle switch ・Switch for DC ・Power switch ・Magnet switch ・Breaker ・Power switch |
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