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Method for preparing release agent for precision casting

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

Inactive Publication Date: 2013-03-27
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 relatively poor deficiencies of the release agent in the prior art, and provides a method for preparing a release agent for precision casting. The release agent prepared by the method of the present invention can make The surface of the core no longer sticks to the surface of the mold, which improves the demoulding effect and reduces the scrap rate

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] 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.

[0035] A kind of preparation method of release agent for precision casting of the present embodiment, its specific steps are as follows:

[0036] (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

[0040] 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.

[0041] A kind of preparation method of release agent for precision casting of the present embodiment, its specific steps are as follows:

[0042] (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

[0046]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.

[0047] A kind of preparation method of release agent for precision casting of the present embodiment, its specific steps are as follows:

[0048] (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 t...

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PUM

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Abstract

The invention discloses a method for preparing a release agent for precision casting, belonging to the technical field of release agents. The method comprises the steps of: (1) weighing 3-5 parts of titanium dioxide, 11-16 parts of quicklime, 7-9 parts of zinc oxide and 8-12 parts of polyoxyethylene octylphenol ether by mass and adding into a dispersion machine; (2) adding the dispersed mixture obtained in the step (1) into a reaction kettle, when the temperature of the reaction kettle reaches 40-45 DEG C and the thermostatic reaction is carried out for 30-35 minutes, weighing 6-7 parts of dibutyltin dilaurate by mass and adding into the reaction kettle, controlling the heating rate to be 3-4 DEG C / min and when the temperature of the reaction kettle reaches 58-62 DEG C, weighing 27-30 parts of hydrogenated terphenyl and 20-25 parts of 320 conduction oil by mass; and (3) cooling the mixture obtained in the step (2) to 20-25 DEG C, weighing 5-8 parts of kerosene and 10-13 parts of butyl acrylate by mass and mixing with the mixture obtained in the step (2). The method disclosed by the invention has the advantages that the production cost is low; the demoulding effect of the release agent is good; and the rejection rate is reduced.

Description

technical field [0001] The invention relates to the technical field of release agents, in particular to a method for preparing 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...

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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