Matched liquid curing agent for phosphate binding agent in warm box process and using method of matched liquid curing agent

A phosphate and binder technology, which is applied in the field of supporting liquid curing agent for phosphate binder in the warm core box process, can solve the problems of poor fluidity and unstable strength of molding sand, and achieve low cost, easy operation and low production cost. low effect
CN110496935AActive Publication Date: 2019-11-26HUBEI UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
HUBEI UNIV OF TECH
Publication Date
2019-11-26

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Abstract

The invention provides a matched liquid curing agent for a phosphate binding agent in the warm box process and a using method of the matched liquid curing agent. The matched liquid curing agent is prepared from a solution A and a solution B, and the mass ratio of the solution A and the solution B is (1.25-3):1, wherein the solution A is composed of a silane coupling agent KH-550 hydrolysate prepared from a silane coupling agent KH-550 and water at the mass ratio of 1:(1-5), and the solution B is composed of a sodium carbonate hydrolysate prepared from anhydrous sodium carbonate and water at the mass ratio of 1:3. The matched liquid curing agent can solve the technical problems that prepared sand moulds (cores) are unstable in strength in the storage process, and moulding sand mobility is poor; and operation is easy and convenient, cost is low, and the matched liquid curing agent can be applied and popularized.
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Description

technical field

[0001] The invention relates to the field of molding materials in the foundry industry, in particular to a matching liquid curing agent for phosphate binders in warm core box technology and a method for using the same. Background technique

[0002] With the increasingly stringent environmental protection supervision and the awakening of people's awareness of environmental protection, the environmental pollution problems caused by traditional organic resin binders cannot be ignored, and traditional inorganic binders have low molding strength, poor molding sand collapsibility, etc. The problem is not ideal in practical application. It is imminent to seek a new type of inorganic binder that can replace traditional organic resin sand.

[0003] Phosphate binder is a green casting binder with low curing temperature, good heat resistance, small gas generation, good high temperature collapse, good reusability, simple process and low cost. It is a very A molding mat...

Claims

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