Water-soluble vanishing model core as well as preparation method and application thereof

A water-soluble, model-based technology, applied in cores, casting molding equipment, casting molds, etc., to solve the problems of easily damaged green bodies, and the inability to use gel injection molding for soluble disappearing model cores

Active Publication Date: 2018-07-13
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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Problems solved by technology

[0005] Aiming at the technical problem that the gel injection molding metal mold is easy to damage the green body when demoulding, and the existing soluble disappearing mold core cannot be applied to the gel injection molding, the present invention adopts the following technical solutions:

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  • Water-soluble vanishing model core as well as preparation method and application thereof

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preparation example Construction

[0023] The invention provides a method for preparing a water-soluble disappearing model core. The preparation method comprises steps: S1, mixing gypsum, magnesium sulfate, water and ceramic powder in proportion, and stirring evenly to obtain a mixed slurry; S2, mixing the mixed slurry The body is poured into a mold containing embedded parts, taken out after curing, and dried to obtain a water-soluble disappearing mold core.

[0024] Specifically, the preparation method includes: designing and manufacturing the embedded part 3 in the water-soluble disappearing pattern core, designing and manufacturing a mold (not shown in the figure) for assembling the water-soluble disappearing pattern core, designing and manufacturing the pouring The mold 2 of the water-soluble disappearing model core, the embedded part 3 is arranged in the mold 2, the mold 2 is preferably a metal mold, the embedded part 3 is preferably a metal embedded part, and a part of the embedded part 3 is embedded in th...

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Abstract

The invention relates to the technical field of preparation of materials, and particularly discloses a preparation method of a water-soluble vanishing model core, the water-soluble vanishing model core and application. The preparation method of the water-soluble vanishing model core comprises the following steps of S1, mixing gypsum, magnesium sulfate, water and ceramic powder according to a ratio, and uniformly stirring, so as to obtain a mixed slurry; S2, pouring the mixed slurry into a die containing an embedded part, curing, fetching out, and drying, so as to obtain the water-soluble vanishing model core. The prepared water-soluble vanishing model core can be directly applied to a gel casting technology to prepare a blank body or other water-based gel forming methods to prepare the blank body.

Description

technical field [0001] The invention relates to the technical field of material preparation, in particular to a preparation method of a water-soluble disappearing model core, a water-soluble disappearing model core and applications thereof. Background technique [0002] Gel injection molding is one of the most advanced ceramic molding methods. It has been widely used in the preparation of various engineering ceramics due to its advantages of near-net size molding, suitable for manufacturing large-scale and complex-shaped structural workpieces, and no need for large-scale special equipment. . The process of gel injection molding is to inject ceramic slurry into the mold, remove the mold after the slurry is solidified to form a ceramic body, and the body can be dried and degreased to obtain a ceramic part with the desired structure. [0003] Limited by the drying process, the thickness of the parts that can be produced by gel injection molding is small, otherwise cracks are l...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/14B22C9/10
CPCB22C9/106C04B28/14C04B18/165C04B22/142
Inventor 董斌超张舸曹琪崔聪聪包建勋郭聪慧
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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