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Sand mold reinforcing liquid as well as preparation and use methods thereof

A technology of reinforcing liquid and sand molds, which is applied in casting molding equipment, metal processing equipment, casting molds, etc., can solve the problems of easy damage, low surface strength of sand molds, and easy moisture absorption, so as to save consumption, improve the roughness of castings, Blocks the effect of deep penetration

Active Publication Date: 2021-09-07
共享新材料(山东)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention overcomes the problems in the prior art that the surface strength of the sand mold is low, the weak point is easily damaged, and the problem of moisture absorption is easy in a high humidity environment, and provides a sand mold strengthening liquid and its preparation and use method

Method used

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  • Sand mold reinforcing liquid as well as preparation and use methods thereof

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preparation example Construction

[0031] A method for preparing a sand mold reinforcement liquid, comprising the steps of:

[0032] (1) Open the liquid dispersing tank and stir, add organic solvent, add surfactant, anti-skinning agent and anti-sedimentation agent at 800r / min dispersing speed, and disperse for 20 minutes;

[0033] (2) Slowly add the binder, disperse at 800r / min for 20 minutes after the feeding, and the preparation is completed.

Embodiment 1

[0035] A sand mold strengthening solution comprises, in parts by mass, 100 parts of ethanol, 20 parts of phenolic resin, 5 parts of organic bentonite, 0.05 part of tert-butylphenol and 1 part of fatty alcohol polyoxyethylene ether.

[0036] A method for preparing a sand mold reinforcement liquid, comprising the steps of:

[0037] (1) Open the liquid dispersion tank and stir, add 100 parts of ethanol, add 5 parts of organic bentonite, 0.05 parts of tert-butylphenol and 1 part of fatty alcohol polyoxyethylene ether at a dispersing speed of 800r / min, and disperse for 20 minutes;

[0038] (2) Slowly add 20 parts of phenolic resin, disperse at 800r / min for 20 minutes after the addition, and the preparation is completed.

Embodiment 2

[0040] A sand mold strengthening liquid, comprising 100 parts by mass of butyl acetate, 15 parts of epoxy resin, 5 parts of hydrogenated castor oil wax, 0.05 part of methoxyphenol and 0.5 part of alkylphenol polyoxyethylene ether.

[0041] A method for preparing a sand mold reinforcement liquid, comprising the steps of:

[0042] (1) Open the liquid dispersing tank and stir, add 100 parts of butyl acetate, add 5 parts of hydrogenated castor oil wax, 0.05 part of methoxyphenol and 0.5 part of alkylphenol polyoxyethylene ether at a dispersing speed of 800r / min, and disperse for 20 minute;

[0043] (2) Slowly add 15 parts of epoxy resin, disperse at 800r / min for 20 minutes after feeding, and the preparation is complete.

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Abstract

The invention discloses a sand mold reinforcing liquid. The sand mold reinforcing liquid is prepared from the components in parts by mass: 100 parts of an organic solvent, 5-30 parts of a binder, 0.1-5 parts of an anti-settling agent, 0.01-1 part of an anti-skinning agent and 0.01-1 part of a surfactant, wherein the organic solvent can dissolve the binder. In actual production, the sand mold reinforcing liquid can be used and brushed on weak parts of a sand mold or some parts with high requirements on material strength, so that the strength of the surface of the sand mold is improved, and the moisture absorption tendency of the sand mold in a high-humidity environment can also be reduced.

Description

technical field [0001] The invention relates to the technical field of auxiliary materials for casting, and more specifically relates to a sand mold strengthening liquid and methods for its preparation and use. Background technique [0002] In the sand mold manufacturing process, under the influence of various factors, many sand molds have weak strength. For example, the water glass sand mold, because the sand particle size is too large, and considering the collapse of the water glass sand mold in the manufacturing process, the amount of water glass is low, and the strength of the water glass sand mold itself is low. In the process of sand core and box closing, it is easy to cause damage to the sand mold; for sand molds with complex structures, there are places where there is poor compaction during the molding process, the sand mold is loose, and the surface strength is low; in the southern region with high humidity, some sand molds Strength loss may occur due to moisture a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C1/10B22C1/02B22C1/20B22C1/22B22C23/02
CPCB22C1/10B22C23/02B22C1/2253B22C1/02B22C1/226B22C1/2246B22C1/222B22C1/20Y02W30/91
Inventor 陈学更张宏凯何龙韩文
Owner 共享新材料(山东)有限公司
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