Precision casting molding process

A molding process and precision casting technology, applied in casting molding equipment, casting molds, casting mold components, etc., can solve the problems of complex wax mold process, difficult repair welding and grinding of the central part of castings, etc., to reduce production costs, dimensional stability, The effect of small form and position error

Inactive Publication Date: 2017-06-09
赵敏
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the above-mentioned problems existing in the prior art field, the object of the present invention is to provide a precision casting molding pr

Method used

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Examples

Experimental program
Comparison scheme
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Example Embodiment

[0012] Example

[0013] In the precision casting molding process of this embodiment, the molding process steps are as follows: (1) Put the wax material in a mixer, heat it to 45-48°C, and stir it into a paste; (2) Make the two metal pillar molds separately The two mold sleeve holes of the mold sleeve are inserted into the flexible mold sleeve, and the three are placed in the cavity of the metal mold, and then the upper and lower molds are closed; (3) The paste wax is 3.5 Inject into the mold under a pressure of 1 atmospheric pressure, respectively cast the wax mold of the casting body and the wax mold of the gate, and cool for 30-60 minutes at room temperature; (4) Open the upper and lower molds of the metal mold, and place the two metal pillars in it. The mold is removed, the casting body wax mold and the gate wax mold are demolded and placed in the pool to cool to 22-27°C, and then taken out for use; (5) The casting body wax mold made in step (4) is trimmed, and then used A ho...

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PUM

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Abstract

The invention discloses a precision casting molding process. The molding process steps are as follows: (1) put the wax material into a mixer, heat it to 45-48°C, and stir it into a paste; Insert the two die sleeve holes of the flexible mold sleeve into the flexible mold sleeve, and place the three in the mold cavity of the metal mold, and then make them close the upper and lower molds; (3) put the paste wax Inject into the mold at a pressure of 3.5 atmospheres, respectively pour the wax mold of the casting body and the wax mold of the sprue, and cool at room temperature for 30-60 minutes; (4) Open the upper and lower molds of the metal mold, and place the two The metal column mold is pulled out, the wax mold of the casting body and the gate part are removed from the mold, and then placed in a water pool to cool to 22-27°C, and taken out for later use; (5) The wax mold of the casting body made in step (4) is trimmed, Then, the sprue wax pattern and the casting body wax pattern are bonded together with a hot knife at 150° C. to obtain a casting wax pattern. The technological process is simple and easy to operate, the casting has good compactness, and the overall specification is consistent, the size is stable, the shape and position error is small, and the yield is high.

Description

technical field [0001] The invention belongs to casting technology, in particular to a precision casting forming technology. Background technique [0002] In the production of products, molds have been widely used, especially in the foundry industry. Although the casting process has been greatly developed, it still generally adopts traditional sand mold casting and metal casting, and the disadvantage of this method is that the density of the castings is different, which affects the durability of the castings; the castings processed by the traditional method are different. The structure and specifications of the parts are not the same, the process is complicated, and it is very difficult to repair the welding and grinding of the central part of the processed casting. Contents of the invention [0003] In order to overcome the above-mentioned problems existing in the prior art field, the purpose of the present invention is to provide a precision casting molding process, whi...

Claims

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Application Information

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IPC IPC(8): B22C9/04
Inventor 赵敏
Owner 赵敏
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