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Nanometer composite powder zinc impregnation processing method

A technology of powder sherardizing and nano-composite, which is applied in the direction of heating inorganic powder coating, etc., can solve the problems of increasing brittle sherardizing layer, reducing component performance, uneven zincizing layer, etc., shortening the holding time and lowering the maximum heating temperature , not easy to wear effect

Active Publication Date: 2007-04-04
RAILWAY ENG RES INST CHINA ACADEMY OF RAILWAY SCI +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Prolonged zinc sherardizing process will increase the tendency to produce brittle zinc sherardized layer and reduce the performance of components
The existing powder zinc sherardizing process still has the disadvantage of uneven zinc layer when processing large and complex metal components.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The nanocomposite powder galvanized processing method of the present invention mainly includes pretreatment of metal components, galvanized processing of metal components and post-treatment of metal components.

[0020] The pre-treatment of metal components includes: degreasing the surface of the metal, derusting the surface, washing with water and anti-rust drying treatment.

[0021] The metal member is a large-scale, complex-shaped zinc-seeding processing method comprising: the preparation of nano-composite powder zinc-seeding agent, the zinc-seeding process and the cooling and separation process, specifically: (1) the particle size is 120 mesh, zinc Zinc powder with a content of 99% and nano cerium oxide (CeO 2 ) powder mixing, nano cerium oxide powder particle size diameter range 65nm~455nm, average particle size is 110nm, wherein the volume content of the powder with particle size less than 110nm is 60%, its consumption is 5% of zinc powder weight, the powder after...

Embodiment 2

[0028] The nanocomposite powder galvanized processing method of the present invention mainly includes pretreatment of metal components, galvanized processing of metal components and post-treatment of metal components.

[0029] The pre-treatment of metal components includes: degreasing the surface of the metal, derusting the surface, washing with water and anti-rust drying treatment.

[0030] The zinc sherardizing processing method of the metal component section steel comprises: the preparation of the nano-composite powder zinc sheerizing agent, the zinc sherardizing process and the cooling separation process, specifically: (1) zinc powder with a particle size of 120 mesh and a zinc content of 98% with nano-cerium oxide (CeO 2 ) powder mixing, the particle size diameter range of nano cerium oxide powder is 65nm~455nm, and the average particle size is 110nm, wherein the volume content of powder with particle size less than 110nm is 55%, and its consumption is 4% of the zinc powd...

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Abstract

The invention provides a process for nanometer composite powder zinc impregnation processing method, which comprises metal member pretreatment, powder zinc impregnation processing and metal member post-treatment. The powder zinc impregnation processing comprises formulation of nano composite powder zinc impregnation agent, a zinc impregnation procedure and a cooling down separation process.

Description

technical field [0001] The invention relates to the technical field of metal powder galvanization, in particular to a nanocomposite powder galvanization processing method. Background technique [0002] In the past long-term research, many surface anti-corrosion treatment processes for metal coatings have been developed, such as hot-dip galvanized or aluminum coatings, zinc and aluminum diffusion coatings, electro-galvanized coatings and their alloy coatings, and chemical conversion coatings. Layer and other anti-corrosion technology. At present, the main galvanizing processes are: electro-galvanizing (electroplating, ion plating or ion implantation, etc.), cold galvanizing (mechanical plating, brushing plating, etc.), hot-dip galvanizing (including hot-dip galvanizing, thermal spraying galvanizing) and powder infiltration. Zinc craft. [0003] The powder galvanizing process uses the principle of mutual penetration and diffusion of metal atoms during heat treatment. During ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C24/08
Inventor 姜海龙
Owner RAILWAY ENG RES INST CHINA ACADEMY OF RAILWAY SCI
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