Die-casting die for producing shell and production method of shell

Abstract

The invention relates to the technical field of die-casting dies, and provides a die-casting die for producing a shell and a shell production method.The die-casting die comprises a movable die assembly, a fixed die assembly and a sliding block mechanism, and a product cavity is formed among the movable die assembly, the fixed die assembly and the sliding block mechanism; the runner assembly is provided with a feeding sleeve and a sprue spreader arranged on the movable mold assembly, a feeding runner communicated with the product cavity is formed between the upper surface of the sprue spreader and the lower surface of the fixed mold assembly, the feeding sleeve is communicated with the feeding runner, and the thickness of the feeding runner in the direction from the sprue spreader to the product cavity is gradually reduced. And the joint of the feeding runner and the product cavity is linear. Compared with the prior art, the die-casting mold has the advantages that the joint of the feeding runner and the product cavity is arranged to be linear, so that the feeding speed of the shell and the speed of discharging gas out of the product cavity are increased, and the die-casting defects of material shortage, air holes, fluffy structure and the like of a plurality of positioning columns arranged on the shell are prevented.

Description

technical field [0001] The invention relates to the technical field of die-casting molds, in particular to a die-casting mold for producing a shell and a production method for the shell. Background technique [0002] Most of the shells are cast by die-casting technology. For shells with high dimensional accuracy requirements, the shells are usually machined by machine tools after the casting process is completed to improve the dimensional accuracy of the shells so that they meet the requirements of the drawings. [0003] Such as figure 1 The housing 500 shown is also manufactured by first casting and machining, but the structure of this housing 500 is relatively special. The end face of the housing 500 is distributed in a matrix with a plurality of positioning columns 510. In the traditional die-casting mold and In the die-casting process, during the die-casting production process of the shell 500, most of the positioning columns 510 will have die-casting defects such as la...

AI Technical Summary

Problems solved by technology

[0003] like figure 1 The housing 500 shown is also manufactured by first casting and machining, but the structure of this housing 500 is relatively special. The end face of the housing 500 is distributed in a matrix with a plurality of positioning columns 510. In the traditional die-casting mold and In the die-casting process, during the die-casting production process of the shell 500, most of these positioning columns 510 will have die-casting defects such as lack of material and air holes, and these defects are difficult to eliminate by adjusting the parameters of the die-casting machine

Images