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Investment casting method and system

A technology of investment casting and investment, applied in the field of investment casting methods and systems, to achieve the effects of ensuring accuracy, saving manpower, and avoiding manual operations

Inactive Publication Date: 2018-10-12
青岛市平度天鑫铸钢有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide an investment casting method and system to solve various defects of manual operation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] The embodiment of the present invention discloses an investment casting method, comprising the following steps:

[0044] Step 1) Making an investment pattern: preparing a mold material, injecting the mold material into a mold, and condensing to obtain an investment mold.

[0045] Specifically, the following steps are included: step 101) adding the mold material into a melting and holding furnace to melt; step 102) adding the melted mold material into a wax blender and stirring it into a paste; step 103) applying the pasty mold material to the wax The machine is injected into the mold, and condensed to obtain the investment pattern.

[0046] In an embodiment of the present invention, the molding material includes 95% by weight of paraffin and 5% by weight of low molecular weight polyethylene.

[0047] In the prior art, molding materials are generally paraffin wax and stearic acid molding materials, or high-temperature molding materials composed of rosin, ozokerite and p...

Embodiment 2

[0075] The embodiment of the invention discloses an investment casting system, which includes an investment manufacturing unit, a shell manufacturing unit, a pouring unit, a mold cleaning unit and casting heat treatment.

[0076] Among them, the investment pattern manufacturing unit is used to inject the mold material into the mold, and condense to obtain the investment pattern. It specifically includes a mold material melting module, a mold material stirring module and a wax pressing module, wherein the mold material melting module includes a melting and holding furnace, the mold material stirring module includes a wax stirrer, and the wax pressing module includes a pneumatic wax pressing machine. The above-mentioned modules are sequentially connected through pipelines.

[0077] The shell manufacturing unit is used to obtain the shell through the shell making line. It specifically includes inner shell manufacturing module, outer shell manufacturing module and dewaxing module...

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PUM

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Abstract

The invention discloses an investment casting method and system. The method comprises the steps of manufacturing an investment mold; preparing a molding material, injecting the molding material into acompression mold and condensing the molding material to obtain the investment mold; manufacturing a mold shell; conducting pouring; cleaning a casting mold; conducting knockout, shot blasting and inner gate removal treatment on the casting mold to obtain a casting; and conducting heat treatment on the casting, wherein heat treatment includes annealing treatment and normalizing treatment. According to the investment casting method discloses by the invention, a full-automatic assembly line is adopted, the casting accuracy is guaranteed, manpower is saved, and the defects caused by manual operation are avoided; the obtained casting is high in smooth finish, high in mechanical strength and high in quality.

Description

technical field [0001] The invention relates to the field of casting technology, in particular to an investment casting method and system. Background technique [0002] Investment casting, also known as lost wax casting, includes processes such as wax pressing, wax repairing, tree formation, dipping, melting wax, casting molten metal and post-processing. Investment casting usually refers to making patterns from fusible materials, covering the surface of the pattern with several layers of refractory materials to make a shell, and then melting the pattern and discharging the shell to obtain a mold without a parting surface. After high-temperature roasting Ready-to-sand casting casting solution. Lost wax casting is to use wax to make a wax model of the part to be cast, and then coat the wax model with mud, which is the clay model. [0003] However, in the prior art, because the various steps in the casting technology are mostly carried out by manual control, that is, it is la...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C9/04B22C7/02B22C3/00C21D1/26C21D1/28
CPCB22C3/00B22C7/02B22C9/043C21D1/26C21D1/28
Inventor 孙刚
Owner 青岛市平度天鑫铸钢有限公司
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