Method for producing Cu—Ni—Sn alloy
AssigneeNGK Insulators, Ltd.
InventorKensuke Ishii
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Abstract
A method for producing a Cu—Ni—Sn alloy, which achieves both productivity and product quality by reducing internal cracks and dispersing Sn uniformly while shortening the time for cooling an ingot. The method for producing a Cu—Ni—Sn alloy is a continuous casting method or a semi-continuous casting method that includes pouring a molten Cu—Ni—Sn alloy from one end of a mold, both ends of which are open, and continuously drawing out the alloy as an ingot from the other end of the mold while solidifying a part of the alloy, the part being near the mold; performing primary cooling by spraying a liquid mist on the drawn-out ingot; and performing secondary cooling by immersing the ingot having been subjected to the primary cooling in a liquid, thereby making a cast product of the Cu—Ni—Sn alloy.
Claims9
A method for producing a Cu—Ni—Sn alloy by a continuous casting method or a semi-continuous casting method, the method comprising:
- pouring a molten Cu—Ni—Sn alloy from one end of a mold, both ends of which are open, and continuously drawing out the alloy as an ingot from the other end of the mold while solidifying a part of the alloy, the part being near the mold,
- performing primary cooling by spraying a liquid mist on the ingot, and
- performing secondary cooling by immersing the ingot having been subjected to the primary cooling in a liquid, thereby making a cast product of the Cu—Ni—Sn alloy;
- wherein the Cu—Ni—Sn alloy is a spinodal alloy comprising Ni:
- 8 to 22% by weight and Sn:
- 4 to 10% by weight, with the balance being Cu and inevitable impurities.
Dependencies are inferred from the claim text.