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Anti-sedimentation release agent and preparation method thereof

A release agent and anti-sedimentation technology, which is applied in the direction of manufacturing tools, casting molding equipment, metal processing equipment, etc., can solve the problem of increased viscosity of the release agent, difficulty in bonding the release agent, and easy sedimentation of the components of the release agent, etc. question

Inactive Publication Date: 2015-11-11
WUHU HUANGYAN IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the release agent can basically meet the above three characteristics, but the existing release agent is not easy to store for a long time, because the components of the release agent are easy to settle after long-term storage, and at the same time, the viscosity of the release agent increases due to oxidation making it difficult for the release agent to adhere to the mold

Method used

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Examples

Experimental program
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Effect test

preparation example Construction

[0017] The present invention also provides a preparation method of anti-sedimentation release agent, comprising:

[0018] 1) Soak attapulgite in hydrochloric acid solution after calcining, and then filter to obtain modified attapulgite;

[0019] 2) The mold release agent is prepared by mixing modified attapulgite, sodium alginate, soybean wax, aluminum dihydrogen phosphate, nonylphenol ether polyoxyethylene ether, aluminum oxide and an organic solvent.

[0020] In the above-mentioned preparation method, the specific type of organic solvent can be selected in a wide range, as long as other components can be uniformly dispersed in the organic solvent, but in order to make the prepared mold release agent have more excellent Viscosity and anti-settling properties, preferably, the organic solvent is selected from one or more of ethyl acetate, ethanol and n-hexane.

[0021] In the above-mentioned preparation method, the specific content of each component can be selected in a wide r...

Embodiment 1

[0028] 1) Calcining attapulgite at 600° C. for 12 hours, soaking it in hydrochloric acid solution (the concentration of hydrochloric acid is 25% by weight) at 40° C. for 7 hours, and then filtering to obtain modified attapulgite;

[0029] 2) Mix modified attapulgite, sodium alginate, soybean wax, aluminum dihydrogen phosphate, nonylphenol ether polyoxyethylene ether, aluminum oxide and organic solvent (the weight ratio is 60:25:4:12:5:27 : 100) were mixed at 25°C for 45 minutes to prepare the release agent A1.

Embodiment 2

[0031] 1) After calcining attapulgite at 500° C. for 10 h, soaking it in hydrochloric acid solution (the concentration of hydrochloric acid is 20% by weight) at 35° C. for 6 h, and then filtering to obtain modified attapulgite;

[0032] 2) Mix modified attapulgite, sodium alginate, soybean wax, aluminum dihydrogen phosphate, nonylphenol ether polyoxyethylene ether, aluminum oxide and organic solvent (the weight ratio is 50:10:3:9:2:25 : 100) mixed at 15°C for 30 minutes to prepare release agent A2.

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PUM

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Abstract

The invention discloses an anti-sedimentation release agent and a preparation method thereof. The anti-sedimentation release agent comprises modified attapulgite, sodium alginate, soy wax, aluminium dihydrogen phosphate, nonyl phenol ether polyoxyethylene ether, aluminium oxide and an organic solvent. Attapulgite is subjected to calcination and steeped in a hydrochloric acid solution, and the modified attapulgite is obtained after filtration. The anti-sedimentation release agent can be stored and used for a long time, and at the same time the preparation method for the anti-sedimentation release agent is simple in step and the raw materials are easy to obtain.

Description

technical field [0001] The invention relates to a release agent, in particular to an anti-sedimentation release agent and a preparation method thereof. Background technique [0002] Aluminum alloy wheels have been widely used in daily life due to their light weight and anti-corrosion characteristics. These aluminum alloy wheels are usually processed by die-casting. In the die-casting process of aluminum alloy, a release agent is required in the die-casting mold, and the release agent is a functional substance between the mold and the finished product. The release agent has the following characteristics: 1) Chemical resistance, that is, it will not be dissolved when in contact with the finished product; 2) It has heat resistance and excellent stress performance, and is not easy to decompose or wear; 3) It is easy to adhere to the mold without transfer to the workpiece being processed. [0003] At present, the release agent can basically meet the above three characteristics,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C3/00
Inventor 倪勤松王军
Owner WUHU HUANGYAN IND
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