Non-silicone magnesium alloy pressure casting mould release agent

Abstract

The invention discloses a non-silicone magnesium alloy pressure casting mould release agent which comprises the following components in percentage by weight: 10%-20% of polyol ester, trimethylolpropane complex ester or pentaerythritol complex ester, 1%-8% of polyacrylate, polyisobutene or ethylene-propylene copolymer, 5%-20% of sorbitan monooleate, alkyl alcohol polyoxyethylene ether, polyoxyl oleate or polyethylene glycol dilaurate,6-15% of triethanolamine, triisopropanolamine, decanedioic acid or C11-C14 binary acid, 1%-5% of magnesium alloy dedicated water-soluble corrosion inhibitor, 1%-5% of ethylene glycol, diglycol or glycerol, and the balance of deionized water. According to the non-silicone magnesium alloy pressure casting mould release agent, no organic silicon compound is contained, the production cost is reduced, the product is long in storage period and convenient to transport; no ash is in the raw materials of the product, so that no residue and bright surface of the processed part are ensured; the product is stored without being added with antiseptics, so that the product is safe in use and environment-friendly; compared with a similar product, the product effectively reduces the mould abrasion times and prolongs the service life of a mould.

Description

technical field [0001] The invention relates to a mold release agent, in particular to a mold release agent used for magnesium alloy die-casting without organosilicon compounds and a preparation method thereof. Background technique [0002] In recent years, with the rapid development of the electronics industry and automobile manufacturing industry, many parts made of magnesium alloy materials are widely used in the electronics and automobile industries, among which magnesium alloy die-casting parts are more widely used. The heat capacity of the alloy is smaller, the solidification is faster, and it needs to be well formed in a short cooling time, so the magnesium alloy die-casting molding has higher requirements on the release agent; the magnesium alloy die-casting release agent currently on the market generally contains organic compounds. Emulsion of silicon compounds, such as Chinese patent application number: 201010239348.8, discloses an environmentally friendly magnesiu...

AI Technical Summary

Problems solved by technology

[0003] 1. The stability of the product is poor, the storage period is short, and there are certain difficulties in transportation and management;

[0004] 2. The product contains organosilicon compounds, and it is difficult to clean the processed parts, which affects the surface treatment of the parts in the subsequent process;

[0005] 3. The price of the product is high. Since organosilicon compounds are the main raw materials, organosilicon is neither soluble in water nor oil. It takes a lot of expensive emulsifiers to prepare a stable emulsion, resulting in higher product costs and unfavorable product quality. promotional use