Method for testing high-combination performance coating strength based on pressure experimental device and its sample

A pressure test and combined performance technology, applied in the direction of measuring devices, mechanical devices, instruments, etc., can solve problems such as large errors and unreasonable sample structures, and achieve uniform force, simple and clear physical meaning, and convenient clamping Effect

Inactive Publication Date: 2007-11-21
海安常科技术转移中心有限公司
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Problems solved by technology

[0005] The purpose of the present invention is to invent a pressure-based test that can be widely used in the bonding force test of high bonding performance coatings for the problems of large

Method used

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  • Method for testing high-combination performance coating strength based on pressure experimental device and its sample
  • Method for testing high-combination performance coating strength based on pressure experimental device and its sample
  • Method for testing high-combination performance coating strength based on pressure experimental device and its sample

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[0029] The present invention will be further described below in conjunction with the drawings and embodiments.

[0030] As shown in Figure 3.

[0031] A method for testing the bonding strength of high bonding performance coatings based on a pressure test device, which mainly consists of the following steps:

[0032] First take the same sample as the base material and process it into a sample blank consisting of a cone and a cylinder, where the cylinder is integrally connected to the small end of the cone, and the cone angle of the cone is 2 times the base material Between the friction angle and 120 degrees;

[0033] Secondly, put the above-mentioned sample blank in a stepped support ring with the same cone angle and cone hole, and make the cone part of the sample blank fit the cone hole. The large step diameter of the stepped support ring is The diameter of the small end of the taper hole is 2 to 4 times, the difference between the diameter of the small step and the diameter of th...

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Abstract

A method for testing bond strength of coating layer includes preparing cone-column integrated body and stepped support circle, using mechanical process to make end surface of big end on cone body in cone-column integrated body be on the same plane as end surface of small step body on stepped support circle, preparing tested coating layer on said plane, sticking a metal reinforced plate on coating layer, setting test piece directly on pressure tester to carry out push-press test form measuring out bond strength of coating layer. The test piece used in said method is also disclosed.

Description

technical field [0001] The present invention relates to a material test method and its sample, in particular to a method for testing the high-strength bonding force of a coating and a substrate and a sample, in particular to a method for testing the bonding strength of a high-bonding coating based on a pressure test device. testing method. Background technique [0002] Quantitative characterization of the mechanical properties of the coating-substrate interface has always been the goal pursued by researchers and users, and it is one of the key issues that need to be solved urgently in the field of surface engineering technology. The quantitative test of the bonding strength between the coating and the substrate has very important theoretical and practical significance for evaluating the coating quality, optimizing the preparation process and developing new coating technology. [0003] Restricted by test conditions and methods, most of the current testing and sample preparat...

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Application Information

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IPC IPC(8): G01N19/04
Inventor 左敦稳王宏宇黎向锋孙业斌徐锋余亚平
Owner 海安常科技术转移中心有限公司
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