Material slurry colored aluminizing process

Abstract

The invention relates to a colored material slurry aluminizing process, and belongs to the technical field of an aluminizing technology. Material slurry is prepared through the following steps that (1) bonding agent material slurry is prepared from the following ingredients in percentage by weight: 0.1 to 20 percent of polyvinyl alcohol, 0.1 to 10 percent of carboxymethyl cellulose sodium, 0.1 to 10 percent of thickening agents and the balance water; (2) 10 to 65 percent of aluminum supplying agents, 3.5 to 65 percent of bulking agents and 1 to 30 percent of activating agents are mixed and are prepared into the aluminum supplying agents; (3) the aluminum supplying agents are added into the bonding agent material slurry and are mixed, and the aluminizing material slurry is prepared, so that the ratio of the aluminizing agents to the boning agents enters a range being 1: (0.5-1.2); secondary heating processing is carried out after an aluminizing element is coated. The material slurry coating method is used, and dust pollution is avoided. The process has the advantages that the work environment is good, the work intensity is low, the process is relatively simple, the production cost is low, safety production accidents cannot occur, the pollution on environment is little, and the process is favorable for environment protection.

Description

technical field [0001] The invention relates to an aluminizing process, in particular to a slurry color aluminizing process, which 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...

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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 smell, high brittleness of the aluminized layer, and easy leakage, these two aluminized processes are cumbersome, especially the problems of injury accidents, etc. The invention provides a slurry color 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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