A kind of water-based attapulgite-based die-casting release agent and preparation method thereof

Abstract

The invention relates to a waterborne attapulgite-based die casting mold release agent and a preparation method thereof. The waterborne attapulgite-based die casting mold release agent comprises the following components in parts by mass: 15-20 parts of zirconium oxide powder, 15-17 parts of bauxite, 1-3 parts of hydrated magnesium silicate, 5-7 parts of modified attapulgite clay, 40-50 parts of water, 1-3 parts of adhesive, 1-3 parts of emulsion, 2-4 parts of dispersant and 0.1-0.5 part of defoamer. The waterborne attapulgite-based die casting mold release agent provided by the invention has the advantages that no decomposition occurs at a high temperature, mold release can be easily realized, a forging is smooth and flat, etc.; no smoke, no fire, no toxicity, no odor and no dust are realized in a mold pressing process, the mold wear is reduced, and the service life of the mold is prolonged; and the preparation method is simple in process, low in production cost and suitable for industrial production.

Description

technical field [0001] The invention relates to the technical field of paint preparation, in particular to a water-based attapulgite-based die-casting release agent and a preparation method thereof. Background technique [0002] Coating a layer of release agent on the surface of the casting sand mold workpiece can effectively prevent and reduce defects such as sand sticking, sand inclusions, and sand holes on the surface gradually, and reduce the surface roughness of the casting. The quality of the release agent is the most direct factor that affects whether the casting is sand-adhesive, sand-inclusion, the surface finish of the casting, and the dimensional accuracy of the casting. There are many types of release agents, which can be roughly divided into two categories: alcohol-based systems and water-based systems. Among them, the alcohol-based system can be cured after being ignited after coating. It can be used in conjunction with various self-hardening sand processes wi...

AI Technical Summary

Problems solved by technology

[0003] However, the traditional alcohol-based system is flammable, which is not conducive to long-distance transportation, and its use is limited. In addition, a large amount of graphite material is added to the traditional metal release agent, resulting in a black matrix. , The ground and walls of the factory are covered with black dust, which creates an uncomfortable working environment. The hands, feet and clothes of the operators are stained. Inhalation of graphite dust floating in the factory atmosphere will cause bronchitis and pneumoconiosis, which will damage the health of the body.

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