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Method for enameling temperature-resistant enamel materials for 1Cr18Ni9Ti stainless steel surface

A stainless steel and enamel technology, which is applied in the field of enamelling and enamelling of temperature-resistant enamel materials used on the surface of 1Cr18Ni9Ti stainless steel, can solve the problems of easy oxidation corrosion, reduced structural strength and reduced service life of stainless steel, and achieve excellent temperature resistance. performance, ensure performance, and prevent shedding

Inactive Publication Date: 2013-09-04
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the technical problem that stainless steel is prone to oxidative corrosion in a high-temperature medium environment, thereby rapidly reducing the structural strength of the reactor and greatly reducing the service life, and provides a temperature-resistant enamel material for the surface of 1Cr18Ni9Ti stainless steel enamelling and enamelling method

Method used

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Experimental program
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Effect test

specific Embodiment approach 1

[0022] Specific embodiment one: the coating method of the temperature-resistant enamel material that is used for 1Cr18Ni9Ti stainless steel surface in the present embodiment is as follows:

[0023] 1. Weigh 100 parts by weight of heat-resistant enamel frit, 2-6 parts of suspending agent, 4-11 parts of retention agent, 0-3 parts of adhesive agent, 5-10 parts of crystal nucleating agent, 3-5 parts of high temperature oxide and 40-50 parts of dispersant;

[0024] Suspending agent described in step 1 is clay;

[0025] The retention agent described in step 1 is the mixture of sodium carbonate, borax or sodium carbonate and borax, and the mixture of described sodium carbonate and borax consists of 0-2 parts by weight of sodium carbonate and 4-9 parts by weight of borax;

[0026] Adhesive agent described in step 1 is nickel oxide;

[0027] The crystal nucleating agent described in step 1 is titanium dioxide;

[0028] The high-temperature oxide described in step 1 is aluminum oxide...

specific Embodiment approach 2

[0042] Specific embodiment two: the difference between this embodiment and specific embodiment one is that in step one, 100 parts of heat-resistant enamel frit, 3 parts of suspending agent, 6 parts of retention agent, 2 parts of adhesive agent, 6 parts of Crystal nucleating agent, 4 parts of high temperature oxide and 45 parts of dispersant. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0043] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that in step 2, ball milling is performed for 48 hours at a rotational speed of 400 rpm. Others are different from the first or second specific embodiment.

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Abstract

The invention discloses a method for enameling temperature-resistant enamel materials for a 1Cr18Ni9Ti stainless steel surface, and relates to a method for enameling enamel materials for a stainless steel surface. The invention aims to solve the technical problems that the strength of a reactor is rapidly reduced and the service life is greatly shortened as stainless steel is likely to suffer from oxidation corrosion in a high-temperature medium environment. The enamel glaze slip is prepared by carrying out ball milling, sieving and ageing on temperature-resistant enamel fusion cake, a suspending agent, a retention agent, an adherence agent, a nucleation agent, high-temperature oxide and a dispersing agent. The enameling method uses a dip-coating method, materials are insulated and enameled in a muffle furnace after being dried and are then cooled to obtain the final enamel product. The final enamel product prepared by the method has excellent temperature resistance, can endure the temperature difference impact of about 500 DEG C and can keep high stability in acid or alkaline mediums. The invention belongs to the field of preparation and application of enamel materials.

Description

technical field [0001] The invention relates to an enamelling method and an enameling firing method of an enamel material used on the surface of stainless steel. Background technique [0002] Industrial manufacturing technology in the chemical industry generally includes processes such as raw material purification, reaction preparation, and separation and purification of reactants. Among them, chemical reactions generally need to be carried out at high temperatures, the process is complex and the reaction materials have various phase states, and the reaction environment is relatively harsh. As the core equipment and reaction site of industrial manufacturing technology, chemical reactors have been in complex, harsh and high-temperature environments for a long time, which makes chemical reactor materials need to have high stability of chemical medium resistance and high temperature resistance. [0003] At present, the base material commonly used in chemical reactors is stainl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23D5/02C23D11/00C03C8/04
Inventor 张春华傅鑫黄玉东
Owner HARBIN INST OF TECH
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