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Silica gel investment casting modulation wax and preparation method thereof

A technology of investment casting and silica gel, applied in casting and molding equipment and other directions, can solve the problems of low production efficiency of artworks, insufficient artworks, poor stability, etc., and achieve the effects of low grayscale, high strength and strong stability.

Inactive Publication Date: 2021-02-05
青岛新诺科新材料科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] An object of the present invention is to provide a silica gel investment casting modulated wax and its preparation method, which can solve the problems that the existing silica gel investment casting modulated wax is limited by the manufacturing and material factors, such as poor stability, low strength, and high gray scale , Defects that are not easy to demould, resulting in low production efficiency of artwork production and technical problems of cast artworks not exquisite enough

Method used

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  • Silica gel investment casting modulation wax and preparation method thereof

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preparation example Construction

[0030] Based on the silicone investment casting modulation wax mentioned above, such as figure 1 As shown, the present invention also provides a method for preparing wax prepared by silica gel investment casting, which includes the following steps S1-S7, wherein step S5 can be omitted, and when the long-term production is expected or the follow-up process is delayed, the continuous stirring step S5 can be used to achieve continuous production work.

[0031] S1. The step of melting the hydrogenated resin, adding 1 / 2 of the hydrogenated resin to the reactor, heating and stirring fully, and then adding 1 / 2 of the remaining hydrogenated resin to continue heating and fully stirring to obtain molten hydrogenated resin. resin.

[0032] S2, the step of adding polyethylene wax, adding polyethylene wax into the reaction kettle, heating and fully stirring, so that the polyethylene wax is completely melted and mixed evenly.

[0033] S3, the step of adding ethylene-vinyl acetate copolyme...

Embodiment 1

[0048] A silica gel investment casting prepared wax, which comprises the following raw materials in parts by mass: 44-46 parts of microcrystalline wax, 2.5-3.5 parts of montan wax, 34-36 parts of hydrogenated resin, ethylene-acetic acid Ethylene copolymer 3.5-4.5 parts, No. 58 paraffin wax 12-14 parts.

[0049] The preparation method of the above-mentioned silica gel investment casting modulated wax comprises the following steps:

[0050] (1) Divide the hydrogenated resin into two parts, heat one part at 120°C, stir continuously until it melts, then add another hydrogenated resin, continue heating, stir continuously until it melts, and obtain molten hydrogenated resin A;

[0051] (2) Continue heating the molten hydrogenated resin A obtained in step (1) at 100-120°C for 1-2 hours, add montan wax, and keep stirring until completely melted to obtain mixture B;

[0052] (3) Continue heating the mixture B obtained in step (2) at 110-120°C for 1-2 hours, add ethylene-vinyl acetate ...

Embodiment 2

[0058] A silica gel investment casting preparation wax, which comprises the following raw materials in parts by mass: 44 parts of microcrystalline wax, 2.5 parts of montan wax, 34 parts of hydrogenated resin, 3.5 parts of ethylene-vinyl acetate copolymer, and 12 parts of No. 58 paraffin wax.

[0059] The preparation method of the above-mentioned silica gel investment casting modulated wax comprises the following steps:

[0060] (1) Divide the hydrogenated resin into two parts, heat one part at 120°C, stir continuously until it melts, then add another hydrogenated resin, continue heating, stir continuously until it melts, and obtain molten hydrogenated resin A;

[0061] (2) Continue heating the molten hydrogenated resin A obtained in step (1) at 100°C for 1 hour, add montan wax, and keep stirring until completely melted to obtain mixture B;

[0062] (3) Continue heating the mixture B obtained in step (2) at 110°C for 1 hour, add ethylene-vinyl acetate copolymer, and keep stirri...

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Abstract

The invention relates to silica gel investment casting modulation wax and a preparation method thereof. The silica gel investment casting modulation wax comprises the following components by mass: 42-44 parts of microcrystalline wax; 3-5 parts of polyethylene wax; 34-36 parts of hydrogenated resins; 2-4 parts of an ethylene-vinyl acetate copolymer; and 13-17 parts of No.58 paraffin wax. The silicagel investment casting modulation wax is high in stability and strength, is not prone to deformation, and low in gray scale, and pollution to metal casting is reduced; demolding is easy, and molten wax flows out of a shell with a wax mold during demolding easily; and in the silica gel investment casting process, the production efficiency can be effectively improved.

Description

technical field [0001] The invention relates to the technical field of silica gel investment casting, in particular to a silica gel investment casting prepared wax and a preparation method thereof, and provides an art model wax for artwork production, which is suitable for the art silica gel investment casting industry. Background technique [0002] At present, in the field of art silicone investment casting technology, the commonly used modified wax for repair has the defects of poor stability, low strength, high gray scale, and difficult demoulding, which leads to low production efficiency of artwork production and insufficient cast artwork exquisite. Contents of the invention [0003] An object of the present invention is to provide a silica gel investment casting modulation wax and its preparation method, which can solve the existing silica gel investment casting modulation wax subject to the factors of production and materials, such as poor stability, low strength, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C7/02C08L91/06C08L23/06C08L23/08
CPCB22C7/02C08L91/06C08L2205/025C08L2205/035C08L23/06C08L23/0853
Inventor 邵斌高飞蒋涛张苗
Owner 青岛新诺科新材料科技发展有限公司
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