Method for preparing environment-friendly type casting adhesive agent

Abstract

The invention discloses a preparation method of an environment-friendly casting binder, which relates to an improvement of a casting binder, and provides the preparation method of an environment-friendly casting binder that does not discharge noxious and harmful gases in the producing and using process. The preparation method of the environment-friendly casting binder adopts the technical proposal which comprises animal glue, fatty acid, alcohol, an anti-gelling agent and a catalyst with the content of each component by weight is: 30 to 60 units of animal glue, 20 to 40 units of fatty acid (or C12-C18 organic acid), 10 to 20 units of alcohol, 10 to 20 units of anti-gelling agent, 1 to 2 units of mineral acid catalyst and the remaining of water.

Description

Technical field: [0001] The present invention relates to an improvement of a foundry binder. Background technique: [0002] At present, the binders supplied in the domestic market mainly include various synthetic greases, synthetic resins, and modified water glass. During the molding and pouring process, a large amount of smoke and some toxic and harmful gases of aldehydes and phenols will be released, causing serious environmental pollution; although the water glass binder sand does not emit harmful gases, the molding sand has poor collapsibility, and the old sand has poor reproducibility. The accumulation of old sand not only pollutes the environment, but also increases the casting cost. In order to solve the above problems, some hydrophilic binders have appeared in the prior art, such as the casting binder provided by CN02144185. Although this binder solves the environmental protection problem, the synthesis process is complicated, and the Molding sand needs to be solid...

AI Technical Summary

Problems solved by technology

[0002] At present, the binders supplied in the domestic market mainly include various synthetic greases, synthetic resins, and modified water glass. During the molding and pouring process, a large amount of smoke and some toxic and harmful gases of aldehydes and phenols will be released, causing serious environmental pollution; although the water glass binder sand does not emit harmful gases, the molding sand has poor collapsibility, and the old sand has poor reproducibility. The accumulation of old sand not only pollutes the environment, but also increases casting costs

In order to solve the above problems, some hydrophilic binders have appeared in the prior art, such as the casting binder provided by CN02144185. Although this binder solves the environmental protection problem, the synthesis process is complicated, and the Molding sand needs to be solidified by baking, and the casting cost is high, which is difficult for users to accept

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