Release agent used for aluminum alloy part die-casting die and preparation method thereof

A die-casting mold and release agent technology, which is applied in casting molding equipment, metal processing equipment, casting molds, etc., can solve the problem of increased viscosity of release agent, easy sedimentation of release agent components, and difficulty in bonding of 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 agents used for die-casting molds of aluminum alloy parts can basically meet the above three characteristics, but the existing release agents are not easy to store for a long time, because the components of the release agent are easy to settle after long-term storage and are oxidized at the same time. Causes the viscosity of the release agent to increase, making it difficult for the release agent to adhere to the mold

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0016] The present invention also provides a method for preparing a release agent for die-casting molds of aluminum alloy parts, comprising:

[0017] 1) Soak bamboo charcoal in hydrochloric acid solution, then filter to obtain modified bamboo charcoal;

[0018] 2) Mix modified bamboo charcoal, sodium alginate, beeswax, graphene, triethanolamine, talcum powder and organic solvent to prepare a release agent.

[0019] 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.

[0020] In the above-mentioned preparation method, the specific content of each component can be selected in a wide range, but in order to make the prepared mold re...

Embodiment 1

[0026] 1) at 40°C, soak bamboo charcoal in hydrochloric acid solution (the concentration of hydrochloric acid is 25% by weight) for 7h, then filter to obtain modified bamboo charcoal;

[0027] 2) Prepared by mixing modified bamboo charcoal, sodium alginate, beeswax, graphene, triethanolamine, talc and organic solvent (weight ratio: 70:25:4:2:5:27:100) at 25°C for 45 minutes Release agent A1.

Embodiment 2

[0029] 1) at 35°C, soak bamboo charcoal in hydrochloric acid solution (the concentration of hydrochloric acid is 20% by weight) for 6h, then filter to obtain modified bamboo charcoal;

[0030] 2) Prepared by mixing modified bamboo charcoal, sodium alginate, beeswax, graphene, triethanolamine, talc and organic solvent (weight ratio: 60:10:3:1:2:25:100) at 15°C for 30 minutes Release agent A2.

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PUM

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Abstract

The invention discloses a release agent used for an aluminum alloy part die-casting die and a preparation method thereof. The release agent comprises modified bamboo charcoal, sodium alginate, beewax, graphene, triethanolamine, talcum powder and organic solvents, wherein the modified bamboo charcoal is obtained by soaking bamboo charcoal in a hydrochloric acid solution and then filtering the hydrochloric acid solution. The release agent can be stored and used for a long time; meanwhile, the preparation method of the 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 a release agent for die-casting molds of aluminum alloy parts and a preparation method thereof. Background technique [0002] Aluminum alloy parts have been widely used in daily life due to their light weight and anti-corrosion characteristics, such as aluminum alloy wheels and aluminum alloy doors and windows. These aluminum alloy parts 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....

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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