Thermal spraying fixture protective coating, protective method and application

A technology of tooling fixtures and protective coatings, which is applied in the direction of surface coating liquid devices, coatings, and pre-treated surfaces to achieve the effect of easy peeling off and adhesion strength protection

Active Publication Date: 2019-07-02
AVIC PST NANFANG GAS TURBINE COMPLETE MFG & INSTALLATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a thermal spraying fixture protective paint, protective method and application to solve the technical problem that the existing protective paint can only protect once spraying

Method used

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  • Thermal spraying fixture protective coating, protective method and application
  • Thermal spraying fixture protective coating, protective method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Mix high temperature resistant paint W61-500 and 180 mesh graphite powder at a volume ratio of 1:1, and put in an appropriate amount of curing agent as required (the ratio of paint and curing agent should be carried out according to the instructions of the paint manufacturer), and stir evenly. Then add an appropriate amount of diluent according to the viscosity to dilute, and stir again evenly to obtain the protective coating for thermal spraying fixtures.

[0038] After the protective surface of the thermal spray fixture is cleaned and degreased and sand blasted, brush the protective coating of the thermal spray fixture on the surface of the thermal spray fixture, dry it in a ventilated place or cure the coating by other means.

[0039] Use oxyacetylene flame spraying for the protected thermal spraying fixtures. First, spray aluminum-clad nickel powder (priming layer) as shown in Table 1. The spraying thickness is 0.15mm. At this time, the protective coating is well com...

Embodiment 2

[0041] Mix high temperature resistant paint W61-500 and 180 mesh graphite powder at a volume ratio of 2:1, and put in an appropriate amount of curing agent as required (the ratio of paint and curing agent should be carried out according to the instructions of the paint manufacturer), and stir evenly. Then add an appropriate amount of diluent according to the viscosity to dilute, and stir again evenly to obtain the protective coating for thermal spraying fixtures.

[0042]After the protective surface of the thermal spray fixture is cleaned and degreased and sand blasted, brush the protective coating of the thermal spray fixture on the surface of the thermal spray fixture, dry it in a ventilated place or cure the coating by other means.

[0043] Use oxyacetylene flame spraying for the protected thermal spraying fixtures. First, spray aluminum-clad nickel powder (priming layer) as shown in Table 1. The spraying thickness is 0.15mm. At this time, the protective coating and the ther...

Embodiment 3

[0045] Mix high-temperature-resistant paint WEH61884 with 160 mesh graphite powder at a volume ratio of 4:1, and put in an appropriate amount of curing agent as required (the ratio of paint and curing agent should be carried out according to the instructions of the paint manufacturer), stir evenly, and then Add an appropriate amount of thinner to dilute the viscosity, and stir again to get the protective coating for thermal spraying tooling and fixtures.

[0046] After the protective surface of the thermal spray fixture is cleaned and degreased and sand blasted, brush the protective coating of the thermal spray fixture on the surface of the thermal spray fixture, dry it in a ventilated place or cure the coating by other means.

[0047] Use oxyacetylene flame spraying for the protected thermal spraying fixtures. First, spray aluminum-clad nickel powder (priming layer) as shown in Table 1. The spraying thickness is 0.15mm. At this time, the protective coating is well combined wit...

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Abstract

The invention discloses a protection coating for a thermal spraying work fixture. The protection coating for the thermal spraying work fixture is prepared from graphite powder and high-temperature-resistant oil paint resisting 200-800 DEG C in the volume ratio of 1:(1-6). The protection coating for the thermal spraying work fixture is smeared on the thermal spraying work fixture and then cured. The volume ratio of graphite powder to high-temperature-resistant oil paint is 1:(1-6), graphite powder is dispersed in high-temperature-resistant oil paint, and the combining compactness and adhesion firmness of high-temperature-resistant oil paint with the thermal spraying work fixture are reduced and maintained within the proper range. Meanwhile, graphite powder is resistant to high temperatures, and through cooperation of graphite powder and high-temperature-resistant oil paint, the protection coating for the thermal spraying work fixture can conveniently shed after a spray substance layer reaches a certain thickness and flakes through multiple times of thermal spraying and have a certain adhesion strength to protect the thermal spraying work fixture.

Description

technical field [0001] The invention relates to the field of tooling fixture protection, in particular to a protective coating for thermal spraying tooling fixtures. In addition, the invention also relates to a thermal spraying fixture protection method and the application of thermal spraying fixture protective paint. Background technique [0002] In order to improve or change the surface properties of a certain part of a part or repair the size of a certain part of it, thermal spraying can now be used. Like spray paint, it is necessary to cover the surface that does not need to be sprayed when spraying. Tooling can be used for protection, so that the sprayed material will be sprayed on the tooling and will not be sprayed on the surface of the part that does not need to be sprayed. As the sprayed material layer is continuously deposited on the surface of the fixture, as the thickness of the sprayed material layer increases, its protective effect and thermal spraying quality...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D183/00C09D7/61B05D3/12B05D7/24
CPCB05D3/12B05D7/24C08K3/04C08K2201/003C09D183/00
Inventor 曹利锋周建罗王辉邹伟
Owner AVIC PST NANFANG GAS TURBINE COMPLETE MFG & INSTALLATION
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