Prefabricated ceramic tube composite shell making process method

A process method and technology for porcelain tubes, which are applied in the field of prefabricated porcelain tube composite shell-making processes, can solve the problems of low efficiency, only a few grams to no more than ten kilograms, and incapable of large-scale casting shell-making operations, etc., and achieve process operation. Simple and convenient, shorten the production cycle and improve the efficiency of shell making

Pending Publication Date: 2022-01-11
汤阴县腾龙合金精铸有限公司
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Problems solved by technology

In the current investment casting, shell making in the form of paraffin is only suitable for castings of a few grams to no more than ten kilograms, and it is impossible to realize the shell making operation for large castings, a

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  • Prefabricated ceramic tube composite shell making process method

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[0019] In order to make the technical means, creative features, achievement goals and effects realized by the present invention easy to understand, the present invention will be further described below with reference to the specific embodiments.

[0020] like figure 1 As shown, a prefabricated porcelain tube composite shell manufacturing method includes the following steps:

[0021] Step 1. Pattern preparation: The newly selected EPS material is used to make a fusible material pattern and form EPS.

[0022] white mold;

[0023] Step 2. Bonding the riser and the ceramic inner gate: bonding and feeding at the determined position of the EPS white mold

[0024] Riser and ceramic sprue;

[0025] Step 3. Dip and coat the shell: apply and coat several layers of refractory coating materials on the outer surface of the EPS white mold;

[0026] Step 4, drying: place the EPS white mold after smearing in step 3 in a drying room for drying;

[0027] Step 5, roasting and molding: take ...

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Abstract

The invention discloses a prefabricated ceramic tube composite shell making process method. The prefabricated ceramic tube composite shell making process method comprises the following steps: preparing a mold pattern, bonding a riser and a ceramic flow gate, drying and roasting, in the step 3, after an EPS white mold is dip-coated and a coating does not flow any more, sanding and putting into an ammonia chloride aqueous solution for curing, and repeatedly dip-coating the material, sanding and curing. The prefabricated ceramic tube composite shell making process method belongs to the technical field of casting molding processes and is a composite shell making process method in which an EPS material pattern is innovatively selected to make a shell mold and the bonding riser and the ceramic flow gate are bonded on the white mold pattern in advance, the process procedure of shell making of existing investment casting is simplified to a great degree, the whole shell making process operation is simple and convenient to operate, the shell manufacturing efficiency is greatly improved, the production period is shortened, meanwhile, the EPS material can be used for manufacturing shells of large castings, and accordingly the problem that existing paraffin cannot be used for manufacturing the mold shells of the large castings is solved.

Description

technical field [0001] The invention relates to the technical field of casting molding technology, in particular to a prefabricated porcelain tube composite shell-making process method. 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. Lost wax casting is to use wax to make the wax mold of the part to be cast, and then coat the wax mold with mud, which is the mud mold. After the mud mold is dried, put it in hot water to melt the internal wax mold The clay mold is taken out and then baked into a pottery mold. Once fired, the sprue is generally left when the clay mold is made, and then the molten metal is poured into the sprue. After cooling, the required parts are made. In the current investment casting, shell making in the form of paraffin is only suitable for castings of a few grams to no more than ten kilog...

Claims

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Application Information

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IPC IPC(8): B22C7/02B22C9/04B22C9/24
CPCB22C7/023B22C9/043B22C9/24
Inventor 张吉路张国红刘天平赵运海董喆孔志锋郭贞吴铭马亮刘月建王小孬张吉旭张国军张国营
Owner 汤阴县腾龙合金精铸有限公司
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