Small-block-shaped nickel-copper alloy preparation method based on water washing technology

Abstract

The invention discloses a method for preparing a small block nickel-copper alloy based on a water washing process, which specifically includes the following steps: calculating the nickel-copper ratio according to the requirements for producing the nickel-copper alloy, then weighing the raw materials, putting them into an intermediate frequency furnace in batches, and energizing the melt , after all the materials are melted, inject the alloy solution into the ladle; move the ladle to the side of the cooling water pool, pour the alloy solution into the cooling water pool, the pouring speed is 100kg / min, and the temperature of the water in the cooling water pool is 70 ‑100℃; After all the alloy solution in the ladle is poured into the cooling water pool, it will be a small piece of nickel-copper alloy finished product when picked up. The invention is used to prepare the nickel-copper alloy of small block, the size of the block is uniform, no mold is needed in the production process, the cost is low, the production cycle of the nickel-copper alloy is shortened, and the production efficiency and product quality are improved.

Description

technical field [0001] The invention relates to the technical field of metallurgy, in particular to a method for preparing a nickel-copper alloy. Background technique [0002] Nickel-copper alloy has good mechanical properties at room temperature and high temperature strength, high corrosion resistance and good wear resistance. It is usually used in the manufacture of traveling wave tubes or other electronic tubes, and can also be used as structural materials for aero-engines. These are used in Used in more sophisticated industries. In addition, in the process of steelmaking, it is also necessary to add nickel-copper alloy for smelting to improve the corrosion resistance and ductility of steel. [0003] The current process for producing bulk nickel-copper is to introduce the nickel-copper alloy solution according to the matching smelting into the mold, and after forming, the mold is lifted to take out the finished nickel-copper alloy. This kind of process has the following...

AI Technical Summary

Problems solved by technology

This kind of process has the following defects: 1) The nickel-copper alloy produced is usually a large ingot, and the weight can only reach 200kg. Steelmaking enterprises bring a large workload; 2) The mold wears seriously. After the alloy solution is poured into the mold, the alloy solution will adhere to the inner wall of the mold during the forming process, which is not easy to mold and hard The mold will inevitably cause the surface of the same nickel alloy to be rough, and it will also damage the inner wall of the mold. Before using it again, the mold must be polished before it can be used; The mold is heated at a low temperature, otherwise the mold will crack and be damaged if the temperature is too fast; 4) Before the mold is poured into the alloy solution, it is necessary to apply a release agent on the inner wall, which increases the production cost; 5) The nickel copper produced by the traditional process The alloy contains many impurities, and there will be many bubbles inside; and during the cooling of the alloy solution in the mold, because the upper surface is exposed to the air, the upper surface of the nickel-copper alloy produced will be oxidized and blackened, and the product quality will be affected. Can't guarantee