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Method for directly and quantitatively testing thermal spraying bonding strength

A technology that combines strength and thermal spraying, and is used in measuring devices, instruments, and mechanical devices to achieve accurate test results.

Inactive Publication Date: 2011-06-22
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although these methods can compare the bonding strength of the coating, they are not quantitatively measured by direct methods after all.

Method used

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  • Method for directly and quantitatively testing thermal spraying bonding strength
  • Method for directly and quantitatively testing thermal spraying bonding strength
  • Method for directly and quantitatively testing thermal spraying bonding strength

Examples

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Embodiment Construction

[0025] Below in conjunction with specific embodiment, further illustrate the present invention. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the teachings of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.

[0026] Embodiments of the present invention relate to a method for directly quantitatively testing thermal spray bonding strength, comprising the following steps: (1) testing the workpiece ( Figure 4 shown) into the retaining ring ( Figure 5 shown), and then the test ring ( image 3 shown) on the test workpiece; (2) connect the fixed ring and the test ring, and fix the fixed ring, the test workpiece and the test ring togeth...

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Abstract

The invention relates to a method for directly and quantitatively testing thermal spraying bonding strength. The method comprises the following steps of: connecting a testing ring, a testing workpiece and a fixing ring together and spraying the testing ring so as to ensure that a coating is filled in a round hole with an inclination of the testing ring; fixedly connecting an upper drawing ring with the testing ring; and then fixedly connecting the lower drawing ring with the fixing ring to form a device for directly and quantitatively testing the thermal spraying bonding strength. The device is put in a drawing machine used for drawing the coating, and then the ratio of used drawing force to a bonding area of the coating and the testing workpiece is measured to obtain the bonding strengthof the coating so as to achieve the purpose of directly and quantitatively testing the thermal spraying bonding strength.

Description

technical field [0001] The invention relates to a testing technique for the bonding strength of thermal spraying, in particular to a method for directly quantitatively testing the bonding strength of thermal spraying. Background technique [0002] At present, the method of directly quantitatively testing the bonding strength of thermal spraying is to use bonding technology. The adhesive force of the adhesive is greater than the bonding strength of thermal spraying. The coating is pulled apart on a stretching machine, and then the bonding strength is determined. However, with the continuous development of thermal spraying technology, the bonding strength of the coating is getting higher and higher, and the method of directly quantitatively testing the bonding strength of thermal spraying with bonding technology is limited. Therefore, many qualitative measurement methods have appeared, such as bending test method, Scratch test method, impact test method, etc. However, althoug...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N19/04
Inventor 顾伟生朱世根童星周寅初
Owner DONGHUA UNIV