Production method for machine tool guide rail casts

Abstract

The invention relates to a production method for thick large casts with large plane, in particular to a production method for machine tool guide rail casts. The method is characterized by including the following steps: system pouring, mould manufacturing, core manufacturing, core assembly and pouring. The production method is unique, strengthens feeding capability of the casts in the mold filling and solidification processes, reduces shrinkage porosity shortcomings, reduces slag inclusion shortcoming at the large plane position of the casts, saves production cost, improves production efficiency and improves product quality of the casts.

Description

technical field [0001] The invention relates to a production method of thick, large-plane castings, in particular to a production method of machine tool guide rail castings. Background technique [0002] At present, for thick, large-plane castings, especially for machine tool guide rail castings, the production method of sand box molding is usually used in casting. For small parts of machine tools, this production method generally has high sand-iron ratio and low process yield, resulting in high production costs. Secondly, the quality is difficult to meet the requirements, and its production efficiency is also very low. For this kind of small parts, there is also a boxless core stacking process. Since the size of the sand mold is not limited by the size and shape of the sand box, the sand-iron ratio is very small, and the process yield is relatively high. molding process, so the production efficiency is greatly improved, but this process is not easy to guarantee the quality...

AI Technical Summary

Problems solved by technology

For small machine tools, this production method generally has high sand-iron ratio and low process yield, resulting in high production costs. Secondly, the quality is difficult to meet the requirements, and its production efficiency is also very low.

For this kind of small parts, there is also a boxless core stacking process. Since the size of the sand mold is not limited by the size and shape of the sand box, the sand-iron ratio is very small, and the process yield is relatively high. molding process, so the production efficiency is greatly improved, but this process is not easy to guarantee the quality of high-quality high-end castings; so far, there is no one that can save production costs, improve production efficiency, and improve Production method of machine tool guide rail castings for product quality of castings