Method for manufacturing Cu—Ni—Al-based sintered alloy
AssigneeDiamet Corporation
InventorYoshinari Ishii
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Abstract
A method for manufacturing a Cu—Ni—Al-based sintered alloy according to the present invention includes: adding pure Al powder to alloy powder containing Cu, Ni, and Al and mixing them to produce raw material powder with a composition ratio of Ni: 1% to 15% by mass, Al: 1.9% to 12% by mass, and a Cu balance containing inevitable impurities; compacting the raw material powder to form a green compact; and sintering the green compact in a mixture gas atmosphere of hydrogen gas and nitrogen gas that contains 3% by volume or more of hydrogen gas.
Claims8
A method for manufacturing a Cu—Ni—Al-based sintered alloy, the method comprising the steps of:
- adding a predetermined amount of a pure Al powder to a Cu—Ni—Al-based alloy powder containing Cu, Ni, and Al and mixing thereof to produce a raw material powder with a composition including Ni:
- 1% to 15% by mass, Al:
- 1.9% to 15% by mass and a balance being Cu and inevitable impurities;
- compacting the raw material powder to form a green compact;
- and
- sintering the green compact in a mixture gas atmosphere of hydrogen gas and nitrogen gas that contains 3% by volume or more of hydrogen gas.
Dependencies are inferred from the claim text.