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Spraying method of wear-resistant coating of coating scraper and spraying mounting and clamping tool thereof

A wear-resistant coating and scraper technology, applied in coating, metal material coating process, melting spray plating, etc., can solve problems such as coating scraper deformation, achieve the speed of delaying temperature rise, simple structure, and prolong spraying time Effect

Inactive Publication Date: 2011-08-31
SHANDONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of deformation of the coating blade due to overheating during the thermal spraying process, and provide a coating blade wear-resistant coating spraying method and its spraying fixture.

Method used

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  • Spraying method of wear-resistant coating of coating scraper and spraying mounting and clamping tool thereof
  • Spraying method of wear-resistant coating of coating scraper and spraying mounting and clamping tool thereof
  • Spraying method of wear-resistant coating of coating scraper and spraying mounting and clamping tool thereof

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Embodiment Construction

[0021] The following is an example of a coating blade with a spraying length of 3 meters, a width of 100 mm, and a thickness of 0.381 mm. Adopt plasma spraying process to prepare AT13 (Al2O3-13%TiO2) wear-resistant coating, its specific implementation is as follows:

[0022] The first step: according to the size of the scraper according to figure 1 , figure 2 The shown components are processed with fixtures. Specifically, it is composed of a horizontally rotating workbench 3 driven by a speed-regulating motor, a metal outer hoop 1 mounted on the workbench 3, and an inner tension hoop 9; wherein the inner tension hoop 9 is provided with an opening, and the opening is provided with There are jacking bolts 8 and tension stoppers 7, and the inner wall of the metal outer hoop 1 is provided with a circle of steps, the height of which is equal to the width of the coating scraper, and the height of the tension inner hoop 9 is lower than the height of the steps, and the lower dimens...

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Abstract

The invention discloses a spraying method of a wear-resistant coating of a coating scraper and a mounting and clamping tool thereof, and the mounting and clamping tool consists of a workbench which is driven by a speed adjusting motor and rotates horizontally and a metal outer hoop and a tension inner hoop mounted on the workbench, wherein the tension inner hoop is provided with an opening, a puller bolt and a tension stop block are arranged at the opening, a ring of step is arranged on the inner wall of the metal outer hoop, and the height of the step is equivalent to the width of the coating scraper. When in spraying, the coating scraper is firstly mounted on the mounting and clamping tool, then a sand blasting gun is used for firstly carrying out sand blasting treatment on the coating scraper, and a plasma spraying gun is finally used for spraying the wear-resistant layer. The spraying method and the mounting and clamping tool can solve the technical problem of deformation of the coating scraper due to heating during the thermal spraying process.

Description

technical field [0001] The invention relates to a method for preparing a wear-resistant coating of strip-shaped thin-walled parts, such as a plasma spraying technology for coating a wear-resistant coating on a scraper blade. Background technique [0002] Coating blades are strip-shaped thin-walled parts that are used in the paper industry for the production of high-grade coated paper to apply the coating in the slurry to the surface of the paper. Since the paint contains CaCO 3 , SiO 2 、Al 2 o 3 Such as ceramic particles, the scraper wear is very serious. In order to improve the wear resistance of the scraper, a layer of wear-resistant coating is usually sprayed on the edge of the scraper to improve its wear resistance, and the spraying process mostly adopts plasma spraying technology. Since the coating scraper is a strip-shaped thin-walled part, the wall thickness is usually 0.2-0.5mm. During the thermal spraying process, due to the small size of the heated parts and t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C4/12C23C4/134
Inventor 孙宏飞王灿明
Owner SHANDONG UNIV OF SCI & TECH
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