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Aluminum die casting water-based release agent suitable for fluoride-free refrigeration industry

A technology of aluminum die-casting and release agent, which is applied in the direction of casting molds, casting mold components, manufacturing tools, etc., can solve the problems of small applicable temperature range, poor stability, general release effect of mold release agents, etc., and achieve excellent lubricity, The effect of excellent lubricating performance and excellent mold release effect

Inactive Publication Date: 2021-08-13
肇庆洛德化工科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides an aluminum die-casting water-based release agent suitable for the fluorine-free refrigeration industry. The design scheme has the advantages of good mold release, strong cooling effect, strong stability, and wide applicable temperature range. , which solves the problems that the existing release agent has general release effect, poor stability and small applicable temperature range

Method used

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  • Aluminum die casting water-based release agent suitable for fluoride-free refrigeration industry

Examples

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preparation example Construction

[0036] To achieve the above object, its preparation method comprises the following steps:

[0037] In step (1), the nonionic surfactant and the long-chain alkyl modified silicone oil are put into the agitator in proportion to mix and stir for 20 minutes, and the reaction temperature inside the agitator is controlled, and the stirring speed is 200 rpm;

[0038] Step (2), continue to add polymer polyester in proportion to the agitator, stir and react for 30 minutes, the reaction temperature is normal temperature, and the stirring speed is 200 rpm;

[0039] Step (3), slowly add an appropriate amount of water during the stirring process, continue to stir and react for 30 minutes after adding, the reaction temperature is normal temperature, and the stirring speed is 500 rpm;

[0040] Step (4), slowly add an appropriate amount of water during the stirring process, continue to stir and react for 60 minutes after adding, the reaction temperature is normal temperature, and the stirring...

Embodiment 1

[0047] Non-ionic surfactant 5%;

[0048] Long chain alkyl modified silicone oil 20%;

[0049] High molecular polyester 5%;

[0050] Polymer wax 10%;

[0051] Silicon-containing high-temperature resistant compounds 1%;

[0052] Water 59%.

[0053]in,

[0054] The non-ionic surfactant is 3% of isomeric alcohol polyoxyethylene ether and 2% of octylphenol polyoxyethylene ether;

[0055] Long chain alkyl modified silicone oil is octadecyl methyl silicone oil;

[0056] The polymer polyester is polypalmitate;

[0057] Polymer wax is polypropylene wax emulsion;

[0058] The silicon-containing high-temperature-resistant compound is a methylphenyl silicone resin emulsion.

Embodiment 2

[0060] Non-ionic surfactant 5%;

[0061] Long chain alkyl modified silicone oil 15%;

[0062] High molecular polyester 7%;

[0063] Polymer wax 8%;

[0064] Silicon-containing high-temperature resistant compounds 1.5%;

[0065] Water 63.5%.

[0066] in,

[0067] The nonionic surfactant is nonylphenol polyoxyethylene ether;

[0068] Long chain alkyl modified silicone oil is dodecyl methyl silicone oil;

[0069] Polymer polyester is polyricinoleic acid ester;

[0070] Polymer wax is polyethylene wax emulsion;

[0071] The silicon-containing high-temperature-resistant compound is a methylphenyl silicone resin emulsion.

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Abstract

The invention relates to the technical field of aluminum die-casting release agents, and particularly discloses an aluminum die casting water-based release agent suitable for the fluoride-free refrigeration industry. The aluminum die casting water-based release agent comprises the following raw materials in parts by weight: 1-10% of nonionic surfactant, 5-30% of long-chain alkyl modified silicone oil, 0-15% of macromolecular polyester, 1-15% of macromolecular wax, 0-3% of silicon-containing high-temperature-resistant compound and the balance of water. The long-chain alkyl modified silicone oil can improve the extreme pressure lubricity of common silicone oil, has good adsorbability and excellent lubricity on metal materials, and especially has a good lubricating effect on aluminum materials with poor lubricity, the high-molecular polyester and the high-molecular wax can provide a lubricating effect at low temperature and high temperature respectively, and the release agent has excellent lubricating property in a high-temperature environment.

Description

technical field [0001] The invention relates to the technical field of aluminum die-casting release agents, in particular to an aluminum die-casting water-based release agent suitable for the fluorine-free refrigeration industry. Background technique [0002] A release agent is an interface coating applied to the surface of two objects that tend to stick to each other, which makes the surface of the object easy to release, smooth and clean. The release agent can not only lubricate the mold at high temperature, but also avoid the scouring effect of the molten metal on the surface of the cavity, improve the working conditions of the mold, prevent the mold from sticking, reduce the thermal conductivity and mold temperature of the mold, and adjust the temperature of each part of the mold. The temperature is relatively stable, thereby improving the formability, and the formed film can reduce the friction and wear between the casting and the mold cavity, especially the core, and p...

Claims

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Application Information

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IPC IPC(8): B22C3/00B22D17/00
CPCB22C3/00B22D17/00
Inventor 罗伟森罗国强黎新浩黄金强张伟前
Owner 肇庆洛德化工科技有限公司