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Mold release agent for precision casting

A technology of precision casting and mold release agent, applied in casting molding equipment, mold, mold components, etc., can solve problems such as poor mold release effect, and achieve the effect of reducing scrap rate, good mold release effect, and low production cost

Inactive Publication Date: 2013-03-20
高金菊
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the disadvantages of the poor demoulding effect of the release agent in the prior art, and to provide a release agent for precision casting. By adopting the formula of the present invention, the surface of the core can no longer interact with the surface of the mold. Adhesion phenomenon improves the demoulding effect and reduces the scrap rate

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A kind of release agent for precision casting of the present embodiment, it is made of kerosene, 320 heat conduction oil, dibutyltin dilaurate, hydrogenated terphenyl, butyl acrylate, octylphenol polyoxyethylene ether, titanium dioxide, quicklime and oxidized Composed of zinc, the parts by weight of the formula are: 8 parts of kerosene, 20 parts of 320 heat transfer oil, 7 parts of dibutyltin dilaurate, 27 parts of hydrogenated terphenyl, 13 parts of butyl acrylate, octylphenol polyoxyethylene ether 8 parts, titanium dioxide 5 parts, quicklime 11 parts, zinc oxide 9 parts.

[0037] A kind of preparation method of release agent for precision casting of the present embodiment, its specific steps are as follows:

[0038] (1) Weigh 5 parts of titanium dioxide, 11 parts of quicklime, 9 parts of zinc oxide, and 8 parts of octylphenol polyoxyethylene ether according to the number of parts by mass, open the disperser, and add titanium dioxide, quicklime, and zinc oxide to the d...

Embodiment 2

[0042] A kind of release agent for precision casting of the present embodiment, it is made of kerosene, 320 heat conduction oil, dibutyltin dilaurate, hydrogenated terphenyl, butyl acrylate, octylphenol polyoxyethylene ether, titanium dioxide, quicklime and oxidized Composed of zinc, the parts by weight of the formula are: 5 parts of kerosene, 25 parts of 320 heat transfer oil, 6.5 parts of dibutyltin dilaurate, 30 parts of hydrogenated terphenyl, 10 parts of butyl acrylate, octylphenol polyoxyethylene ether 12 parts, 3 parts of titanium dioxide, 16 parts of quicklime, 7 parts of zinc oxide.

[0043] A kind of preparation method of release agent for precision casting of the present embodiment, its specific steps are as follows:

[0044] (1) Weigh 3 parts of titanium dioxide, 16 parts of quicklime, 7 parts of zinc oxide, and 12 parts of octylphenol polyoxyethylene ether in parts by mass, start the disperser, and add titanium dioxide, quicklime, and zinc oxide to the disperser i...

Embodiment 3

[0048] A kind of release agent for precision casting of the present embodiment, it is made of kerosene, 320 heat conduction oil, dibutyltin dilaurate, hydrogenated terphenyl, butyl acrylate, octylphenol polyoxyethylene ether, titanium dioxide, quicklime and oxidized Composed of zinc, the parts by weight of the formula are: 7 parts of kerosene, 23 parts of 320 heat transfer oil, 6 parts of dibutyltin dilaurate, 28 parts of hydrogenated terphenyl, 12 parts of butyl acrylate, octylphenol polyoxyethylene ether 11 parts, 4 parts of titanium dioxide, 14 parts of quicklime, 8 parts of zinc oxide.

[0049] A kind of preparation method of release agent for precision casting of the present embodiment, its specific steps are as follows:

[0050] (1) Weigh 4 parts of titanium dioxide, 14 parts of quicklime, 8 parts of zinc oxide, and 11 parts of octylphenol polyoxyethylene ether in parts by mass, start the disperser, and add titanium dioxide, quicklime, and zinc oxide to the disperser in ...

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PUM

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Abstract

The invention discloses a mold release agent for precision casting, which belongs to the technical field of mold release agents. The mold release agent provided by the invention comprises, by weight, 5 to 8 parts of kerosene, 20 to 25 parts of heat-conducting oil 320, 6 to 7 parts of dibutyltin dilaurate, 27 to 30 parts of hydrogenated terphenyl, 10 to 13 parts of butyl acrylate, 8 to 12 parts of polyoxyethylene octylphenol ether, 3 to 5 parts of titanium dioxide, 11 to 16 parts of quicklime and 7 to 9 parts of zinc oxide. According to the invention, the mold release agent can be normally used for a long time at a temperature of 50 to 180 DEG C, and the situations of deterioration and failure of the mold release agent do not occur; the surface of a mold core does not bond with the surface of a mold, so a demolding effect is improved, and a reject rate is reduced; the mold release agent poses no corrosion effect on a casting, and the casting does not suffer from mildew, corrosion and the like even stored for more than half a year.

Description

technical field [0001] The invention relates to the technical field of release agents, in particular to a release agent for precision casting. Background technique [0002] Due to the advantages of high precision, low surface roughness, high flexibility, strong adaptability, material and labor saving, precision castings are widely used in electronics, petroleum, chemical industry, transportation, light industry, textile, pharmaceutical, medical equipment, pumps, etc. It has been widely used in a wide range of fields such as valve components, especially complex structural accessories. In the investment casting process, the production of the core and the selection of the release agent are crucial. [0003] At present, the cores often used in precision casting are urea cores. A good release agent requires that in addition to removing the metal parts from the mold, it must also act as a lubricant to make the parts of the mold slide, and also Improves the flow of molten metal i...

Claims

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Application Information

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IPC IPC(8): B22C3/00
Inventor 高金菊
Owner 高金菊
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