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Production method for machine tool guide rail casts

A production method and casting technology, applied in the directions of casting molds, casting mold components, casting molding equipment, etc., can solve the problems of difficult to meet quality requirements, low process yield, and difficult to guarantee quality, and achieve improved production efficiency, unique methods, The effect of reducing slag inclusion defects

Active Publication Date: 2013-02-27
KOCEL EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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Experimental program
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Embodiment Construction

[0019] A method for producing machine tool guide rail castings is characterized in that the method comprises the following steps:

[0020] a. Design gating system: The gating system is composed of sprue and runner. The runner is arranged along the vertical sides of the chip core. The runner is distributed horizontally along the bottom surface of the sand mold. The sprue is distributed vertically to the runner. ;

[0021] b. Mold making: The mold is divided into a core box and a cavity for nesting sand cores. The cavity for nesting sand cores mainly plays the role of nesting sand cores. Its shape is a cuboid with the same height as the core and width It is 100-140mm larger than the width of the core, and 50-70mm is left on each side, which is convenient for sand filling and fixing, and the length is 70-80mm larger than the total length of the nested core. Sprue, core box: design according to the structure of the casting;

[0022] c. Core making;

[0023] d. Core assembly: Pu...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C9/22B22C9/02B22C9/10
Inventor 程行东王永宏曲泽茂张红坎高峰臣
Owner KOCEL EQUIP
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