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Graphite fireproof binder and preparation method

A refractory binder and graphite technology, which is applied in the direction of adhesives, inorganic adhesives, non-polymer adhesive additives, etc., can solve the problems that graphite components cannot be used for bonding, repairing agents are not applicable, etc., and meet the conditions of use Not harsh, strong applicability, low environmental requirements

Inactive Publication Date: 2019-05-21
珠海凯利得新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem in the prior art that the repairing agent is not suitable for high-temperature conditions above 900°C and cannot be used to bond graphite components under aerobic high-temperature conditions, one of the purposes of the present invention is to provide a graphite refractory adhesive Binder

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Graphite refractory binder, raw materials include:

[0043] 50 parts of graphite powder, 5 parts of adhesive, 5 parts of curing agent, 5 parts of reinforcing agent, 1 part of dispersing agent, 1 part of toughening agent, and 5 parts of water.

[0044] Among them, the graphite powder is nano-graphite powder, the adhesive is aluminum dihydrogen phosphate, the curing agent is zinc oxide, the reinforcing agent is nano-silica, the dispersant is nano-alumina, and the toughening agent is SiC, Fe 2 o 3 , CaO and Mg0 in a mass ratio of 3:1:1:1 mixture.

Embodiment 2

[0046] Graphite refractory binder, raw materials include:

[0047] 70 parts of graphite powder, 20 parts of adhesive, 15 parts of curing agent, 20 parts of reinforcing agent, 10 parts of dispersing agent, 10 parts of toughening agent, and 20 parts of water.

[0048] Among them, the graphite powder is nano-graphite powder, the adhesive is aluminum dihydrogen phosphate, the curing agent is zinc oxide, the reinforcing agent is nano-silica, the dispersant is nano-alumina, and the toughening agent is SiC, Fe 2 o 3 , CaO and Mg0 in a mass ratio of 3:1:1:1 mixture.

Embodiment 3

[0050] Graphite refractory binder, raw materials include:

[0051] 60 parts of graphite powder, 10 parts of adhesive, 10 parts of curing agent, 10 parts of reinforcing agent, 5 parts of dispersing agent, 5 parts of toughening agent, and 12 parts of water.

[0052] Among them, the graphite powder is nano-graphite powder, the adhesive is aluminum dihydrogen phosphate, the curing agent is zinc oxide, the reinforcing agent is nano-silica, the dispersant is nano-alumina, and the toughening agent is SiC, Fe 2 o 3 , CaO and Mg0 in a mass ratio of 3:1:1:1 mixture.

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Abstract

The invention provides graphite fireproof binder. The binder is prepared from graphite powder, adhesive, curing agent, enhancer, dispersing agent, toughening agent and water. The invention further provides a preparation method of the graphite fireproof binder. Compared with the traditional graphite mending agent, the graphite fireproof binder not only can accomplish the mending on the graphite structural element, but also can guarantee the stability of the structure under a high-temperature working condition; the fireproof adhesive is simple in preparation method, non-harsh in condition, low in environment requirement, and strong in applicability. The graphite fireproof binder provided by the invention cannot react with the molten metal, and has more extensive application space on the graphite adhesion, and the current status that the high-temperature graphite mold can be formed only through the traditional machining process is changed.

Description

technical field [0001] The invention belongs to the technical field of adhesives, and in particular relates to a graphite refractory adhesive and a preparation method. Background technique [0002] Due to the limitation of repairing and bonding materials, the molding of high temperature resistant graphite molds is mainly completed by machining, which results in a lot of material waste and a long processing cycle. [0003] As a material with high thermal stability, graphite is very suitable for use as a mold material for ultra-high temperature metal melting. In the process of being used as an ultra-high temperature metal smelting mold, a repair agent will be required according to the working conditions. In the prior art, CN105713513A discloses an alloy additive for casting repair. The raw materials include waste engine oil, silicone resin, polyether ether ketone, epoxy soybean oil, nitrile rubber, carrageenan, hydrogenated castor oil, zeolite powder, asbestos Powder, microp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J1/00C09J11/04
Inventor 赵楠黄烁陈永迪邓宏论
Owner 珠海凯利得新材料有限公司
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