Composite material of gold-based fibers
A fiber composite material and gold-based technology, which is applied in the field of new gold-based fiber composite materials, can solve the problems that the electrical properties and mechanical properties of AuNi alloys cannot be satisfied at the same time, and achieve excellent comprehensive performance, good conductivity, and save precious metals.
Inactive Publication Date: 2007-08-29
SINO PLATINUM METALS CO LTD
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AI Technical Summary
Problems solved by technology
[0003] The invention can provide a new type of gold-based fiber composite material for sliding contacts, which can solve the problem that the electrical and mechanical properties of AuNi alloys cannot meet the technical requirements of sliding contact materials for some instruments at the same time
Method used
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Experimental program
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Effect test
Embodiment Construction
[0012] The new gold-based fiber composites were prepared by the following process.
[0013] According to mass percentage (%): Pd1~3, Gd0.2~0.6, the balance of Au to prepare raw materials, vacuum or argon protection melting → ingot 700 ° C / 3h should be treated → cold rolling → 550 ~ 600 ° C / 0.5 hIntermediate heat treatment→Finish rolling into Au alloy strip with a thickness of 0.21~0.25mm→Laminated Au alloy strip and Ni strip with a thickness of 0.12mm to make a composite ingot→800℃ / 3h insulation extrusion→Cold drawing→600℃ / 1h solid solution Processing→finishing to obtain a new type of gold-based fiber composite material.
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An Au-based fiber composition for the slide contact contains Pd (1-3 mass %), Gd (0.2-0.6), Ni (18.5-21) and Au (rest). It is prepared through overlapping Au-alloy band with Ni fiber band, and pressing. Its advantages are high mechanical performance, high electric conductivity and hardness, and low cost.
Description
technical field [0001] The invention relates to a novel gold-based fiber composite material for a sliding contact, in particular to an Au alloy / Ni fiber composite material. Background technique [0002] In aviation and aerospace instruments, commonly used sliding contact materials are AuNi alloys, such as Au-5Ni, Au-9Ni and Au-10Ni. Abrasiveness, hardness and strength, reducing the temperature coefficient of resistance, adding trace elements such as: Gd, Y, Zr and Rh, but the electrical and mechanical properties of AuNi alloys cannot meet the technical requirements of sliding contact materials for some instruments at the same time . Contents of the invention [0003] The invention can provide a novel gold-based fiber composite material for sliding contacts, which can solve the problem that the electrical and mechanical properties of AuNi alloys cannot simultaneously meet the technical requirements of sliding contact materials for certain instruments. [0004] The composi...
Claims
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IPC IPC(8): C22C49/02
Inventor 王健周世平俞建树唐敏李季王耀东
Owner SINO PLATINUM METALS CO LTD