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A kind of high temperature resistant inorganic plasticizer and preparation method thereof

A technology of high temperature resistance and plasticizing agent, applied in the field of high temperature resistant inorganic plasticizing agent and its preparation, can solve the problems of poor high temperature resistance, easy to cause pollution, shortage of resources, etc., to improve viscosity, reduce usage, moisture low content effect

Inactive Publication Date: 2020-10-23
陈仁清
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

It can also improve the anti-sticking effect of the molding sand and the material cost is low, but its consumption is large and the emission is serious. In the casting process, coal powder and bonding materials will burn and decompose toxic gas pollution, which is easy to cause pollution during use. , resources are in short supply, and have great harm to the human body. Therefore, coal powder clay green sand is not suitable for the needs of the scientific development of the foundry industry and the current environmental protection policy of reducing consumption and emission. Therefore, there is an urgent need in the industry for a direct substitute for coal Powder and the plasticizer of the above-mentioned bonding materials to solve the above-mentioned problems
In addition, the above-mentioned bonding materials for molding sand have poor high temperature resistance, are easy to soften and crack under high temperature conditions, and have low strength under high temperature conditions.

Method used

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  • A kind of high temperature resistant inorganic plasticizer and preparation method thereof
  • A kind of high temperature resistant inorganic plasticizer and preparation method thereof
  • A kind of high temperature resistant inorganic plasticizer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] A high-temperature-resistant inorganic plasticizer, which is composed of the following ingredients in weight percentage, soda ash: 1%; talcum powder: 4%; attapulgite: 5%; high-temperature-resistant mixture: 10%; aluminum oxide: 3%; Aluminum: 2%; sepiolite powder: 10%; bentonite: 60%, tricalcium phosphate 2%, calcium pyrophosphate 3%. The respective proportions of the high temperature-resistant mixture in the mixture (kaolin 5%; bauxite 5%; corundum powder 10%; quartz powder 5%; iron oxide powder 10%; magnesia powder 5%; zircon powder 5% %; diatomite 10%; chromite powder 5%; mullite powder 5%; silicon carbide powder 5%; silica powder 5%; spinel powder 7%; kyanite powder 8%; forsterite powder 10%) .

[0073] The preparation method of the high temperature resistant inorganic plastic agent in the above-mentioned embodiment: comprises:

[0074] (1) First crush bentonite powder, talc powder, sepiolite powder, attapulgite powder, tricalcium phosphate, calcium pyrophosphate a...

Embodiment 2

[0078] A high-temperature-resistant inorganic plasticizer, which is composed of the following ingredients in weight percentage, soda ash: 1%; talcum powder: 4%; attapulgite: 5%; high-temperature-resistant mixture: 10%; aluminum oxide: 3%; Aluminum: 2%; sepiolite powder: 10%; bentonite: 60%, tricalcium phosphate 2%, calcium pyrophosphate 3%. The respective proportions of the high temperature-resistant mixture in the mixture (kaolin 5%; bauxite 5%; corundum powder 10%; quartz powder 5%; iron oxide powder 10%; magnesia powder 5%; zircon powder 5% %; diatomite 10%; chromite powder 5%; mullite powder 5%; silicon carbide powder 5%; silica powder 5%; spinel powder 7%; kyanite powder 8%; forsterite powder 10%) .

[0079] The preparation method of the high temperature resistant inorganic plastic agent in the above-mentioned embodiment: comprises:

[0080] (1) First crush bentonite powder, talc powder, sepiolite powder, attapulgite powder, tricalcium phosphate, calcium pyrophosphate a...

Embodiment 3

[0083] Embodiment three (only containing tricalcium phosphate):

[0084] A high-temperature-resistant inorganic plasticizer, which is composed of the following ingredients in weight percentage, soda ash: 1%; talcum powder: 4%; attapulgite: 5%; high-temperature-resistant mixture: 10%; aluminum oxide: 3%; Aluminum: 2%; Sepiolite Powder: 10%; Bentonite: 63%, Tricalcium Phosphate 2%. The respective proportions of the high temperature-resistant mixture in the mixture (kaolin 5%; bauxite 5%; corundum powder 10%; quartz powder 5%; iron oxide powder 10%; magnesia powder 5%; zircon powder 5% %; diatomite 10%; chromite powder 5%; mullite powder 5%; silicon carbide powder 5%; silica powder 5%; spinel powder 7%; kyanite powder 8%; forsterite powder 10%) .

[0085] The preparation method of the high temperature resistant inorganic plastic agent in the above-mentioned embodiment: comprises:

[0086] (1) First mix bentonite powder, talcum powder, sepiolite powder, attapulgite powder, and ...

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Abstract

The invention provides a high temperature resistant inorganic molding agent with high adhesive strength and capable of directly replacing coal powder and a bonding material and a preparation method ofthe high temperature resistant inorganic molding agent. The high temperature resistant inorganic molding agent is prepared from the following components in percentage by weight: 0-10% of soda ash, 0-10% of talcum powder, 0-10% of attapulgite, 0.5-40% of a high temperature resistant mixture, 0.5-30% of alumina, 0-5% of aluminium dihydrogen phosphate, 0-30% of sepiolite powder, 20-95% of bentoniteand the like.

Description

technical field [0001] The invention relates to the field of chemical agents, more specifically to a high-temperature-resistant inorganic plasticizer and a preparation method thereof. Background technique [0002] Sand box molding sand is a material used for molding in sand casting. Molding sand plays an extremely important role in casting production. The casting waste caused by poor quality of molding sand accounts for about 30-50% of the total casting waste. The bonding ability of molding sand is an important index to measure the quality of molding sand formulation. Molding sand is generally made of molding materials such as raw sand, molding sand binder and auxiliary materials mixed in a certain proportion. [0003] Molding sand must have the following characteristics: 1. Good air permeability. After the high-temperature metallic cast iron liquid is poured into the mold, the gas generated must be able to be discharged from the mold smoothly; 2. Good strength, to ensure th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22C1/18
CPCB22C1/181
Inventor 陈仁清
Owner 陈仁清
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