Die-casting machine and die-casting method

Abstract

The invention relates to a die-casting machine and a die-casting method. The die-casting machine is matched with a mold with a mold cavity for accommodating molten liquid for use. The die-casting machine comprises a plurality of pressure injecting mechanisms which are connected to the mold, wherein a pressure injecting channel for injecting molten liquid into the mold cavity is arranged in each pressure injecting mechanism, and at least two different positions of the mold cavity communicate with the pressure injecting channels. The distances from different positions of the mold cavity to the pressure injecting channels can be reduced, so that flow resistance and pressure loss of the molten liquid can be reduced, the total time of filling up the whole mold cavity with the molten liquid is reduced, and the die-cast part is accurately and quickly formed. Meanwhile, when the molten liquid is cured to generate volume shrinkage and the edge part of the mold cavity defines a new filling space, distances from different positions of the new filling space to different pressure injecting channels are shorter, so that the molten liquid in different pressure injecting channels is ensured to timely fill up the different positions of the new filling space to realize shrinkage compensation, and thus, structural strength of the die-cast part is finally guaranteed.

Description

technical field [0001] The invention relates to the technical field of die casting, in particular to a die casting machine and a die casting method. Background technique [0002] Die-casting machines are widely used in the fields of automobile manufacturing and communication equipment manufacturing. Die-casting machines mainly include injection mechanisms that are used in conjunction with molds. The injection mechanism first injects the molten metal into the cavity of the mold, and the molten metal can be formed into the required die-casting product after cold solidification. Regarding the traditional die-casting machine, when the die-casting parts with large length and small thickness are formed, the formed die-casting parts will have structural defects, resulting in insufficient strength or even inaccurate molding. When molding bulky and complex die-casting parts, it will also cause defects in the die-casting parts such as insufficient structural strength or even inaccura...

AI Technical Summary

Problems solved by technology

Regarding the traditional die-casting machine, when the die-casting parts with large length and small thickness are formed, the formed die-casting parts will have structural defects, resulting in insufficient strength or even inaccurate molding.

When molding bulky and complex die-casting parts, it will also cause defects in the die-casting parts such as insufficient structural strength or even inaccurate molding

Images