Copper walnut and production method thereof

Abstract

The invention discloses a copper walnut and a production method thereof, wherein the production method comprises the following steps: (1) melting a copper block to form liquid copper in a molten state; (2) casting the liquid copper in the molten state into a walnut mold of which the inner surface is smooth in order to form an early form of a walnut without concave holes; (3) pressing the early form of the walnut prepared in the step (2) by using a mold of which the inner wall is provided with a plurality of bumps so as to prepare a copper walnut of which the surface is provided with grooves; (4) cooling and molding the copper walnut prepared in the step (3). By the design, according to the production method, firstly the liquid copper in the molten state is cast to form the early form of the walnut of which the surface is smooth; secondly the early form of the walnut is pressed by using the mold of which the surface is provided with bumps so as to prepare the copper walnut shape of which the surface is provided with grooves; finally the copper walnut is cooled and molded; therefore, the surface of the copper walnut prepared by the method is free of lots of air bubbles, so the quality of the prepared copper walnut is greatly improved.

Description

technical field [0001] The invention relates to the field of production and manufacture of copper parts, in particular to a copper walnut and a production method thereof. Background technique [0002] Copper walnut, as a small and exquisite handicraft, has been widely loved by people all the time. Because the surface of copper walnut has many depressions, if a mold is used for one-time die-casting during the preparation process, the distance between the copper walnut and the mold is often A plurality of air bubbles will be formed during the process, so that the prepared copper walnuts are not delicate enough, thereby greatly reducing consumers' desire to buy. [0003] Therefore, it is an urgent problem to be solved by the present invention to provide a kind of copper walnut with simple production method, good quality of copper walnut after production, and no problems such as air bubbles on the surface and its production method. Contents of the invention [0004] In view o...

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned prior art, the purpose of the present invention is to overcome the copper walnut in the prior art. If a die is used for one-time die-casting during the preparation process of the copper walnut, a plurality of air bubbles will often be formed between the copper walnut and the mold, so that the obtained copper walnut Not delicate enough, thereby greatly reducing the problem of consumers' desire to buy, thereby providing a copper walnut with a simple production method, good quality of the produced copper walnut, and no problems such as bubbles on the surface and a production method thereof