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A color slurry aluminizing process

An aluminizing and slurry technology, which is applied in metal material coating process, coating, solid-state diffusion coating, etc., can solve the problems of high brittleness of the aluminized layer, cumbersome aluminizing process, and easy leakage, etc. Low cost, good for environmental protection and less environmental pollution

Inactive Publication Date: 2017-11-21
周振江
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  • Application Information

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Problems solved by technology

[0006] Aiming at the problems in the powder aluminizing process and the liquid aluminizing process, such as heavy pollution, strong odor, high brittleness of the aluminized layer, and easy leakage, these two aluminizing processes are cumbersome, especially the problems of injury accidents, etc. The invention provides a colored slurry aluminizing process, the purpose of which is to reduce pollution, reduce production costs, improve working conditions, and enrich the color of aluminized parts

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  • A color slurry aluminizing process
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  • A color slurry aluminizing process

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Embodiment Construction

[0028] The technical solution of the present invention is a multi-color slurry aluminizing process, including a binder and an aluminizing agent, and the weight percentage of the binder component in the slurry is: polyvinyl alcohol 0.1-20%, carboxymethyl Sodium cellulose or potassium carboxymethyl cellulose 0.1-10%, thickener 0.1-10%, and the rest is water; the aluminizing agent includes aluminum donor, loosening agent and activator, its main components and The weight percentages are as follows: aluminum donor 10-65%, loosening agent 3.5-65%, activator 0.1-30%.

[0029] Among them, the aluminum supply agent is aluminum powder; the loose agent is any one or a mixture of multiple loose agents in surface sand, kaolin, alumina, quartz powder, alumina, alumina, bauxite, and cooked refractory clay; The activator is any one of cuprous chloride, cupric chloride, magnesium chloride, ferric chloride, ferrous chloride, manganese chloride, manganous chloride, zinc chloride, ammonium chlori...

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Abstract

A color slurry aluminizing process belongs to the technical field of aluminizing. The preparation steps of the slurry are as follows: 1) according to 0.1-20% of polyvinyl alcohol, 0.1-10% of sodium hydroxymethyl cellulose, and 0.1-10% of thickener %, the balance is the weight percentage of water to prepare a binder slurry; 2) Mix according to the ratio of aluminum supply agent: 10-65%, loosening agent: 3.5-65%, activator: 1-30%, and prepare Aluminum supplying agent; 3) Add aluminum supplying agent to the above-mentioned binder slurry and mix it, adjust aluminizing slurry so that the ratio of aluminizing agent and binder is in the range of 1:0.5-1.2; A secondary heat treatment is performed after coating. Using the slurry coating method, there is no dust pollution. This process has good labor environment, low labor intensity, relatively simple process, low production cost, no safety production accident, little environmental pollution, and is conducive to environmental protection.

Description

technical field [0001] The invention relates to an aluminizing process, in particular to a colored slurry aluminizing process, and belongs to the technical field of aluminizing. Background technique [0002] Aluminizing is a chemical heat treatment process in which metal aluminum atoms penetrate into the surface of a metal workpiece. The general process is to place the metal workpiece in an infiltrating agent containing infiltrated metal elements, heat it to a certain temperature, and infiltrate the metal produced by the thermal decomposition of the infiltrating agent. The active atoms of the elements are adsorbed to the surface of the workpiece and diffuse into the surface of the workpiece, thereby changing the chemical composition, structure and performance of the surface of the workpiece. The compound or passivation film formed after the infiltration of metal elements has high high temperature oxidation resistance and corrosion resistance, and can adapt to different envir...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C10/20
Inventor 周振江周宏博
Owner 周振江
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