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Experimental method for wear resistance of coating of coated steel plate

A technology of wear resistance and coated steel plate, which is applied in the direction of testing wear resistance, etc., can solve the problems of small quality of zinc-coated steel plate and inability to measure wear resistance

Pending Publication Date: 2022-02-25
SHOUGANG CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an experimental method for the wear resistance of the coated steel plate to solve the problem that the quality of the zinc-coated steel plate is very small, and the wear resistance cannot be measured by the quality of the coating wear.

Method used

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  • Experimental method for wear resistance of coating of coated steel plate
  • Experimental method for wear resistance of coating of coated steel plate

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Experimental program
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Effect test

Embodiment 1

[0052] The invention discloses a method for testing the wear resistance of the surface coating of zinc-coated steel sheets for stamping. The purpose is to compare the wear resistance of the surface coatings of two types of zinc-coated steel sheets for stamping, A and B, with different types of surface coatings.

[0053] The mass percentages of the coating components of steel plates A and B are the same: 43.4% Zn, 55% Al, 1.6% Si.

[0054] The average surface roughness Ra of A and B steel plates is 0.7 μm (tested according to GBT2523-2008).

[0055] The surface coating of A and B steel plates is an organic coating containing resin, and the surface coating film weight of A and B steel plates is 0.8g / m 2 (measured using NR2100-Kurabo portable infrared oil film thickness gauge).

[0056] Carry out the following tests on the A and B steel plates in turn on the HEIDON Type14 surface property measuring instrument:

[0057] S1. Heating the zinc-coated steel plate to 60°C and keeping...

Embodiment 2

[0065] The invention discloses a method for testing the wear resistance of the surface coating of zinc-coated steel sheets for stamping. The purpose is to compare the wear resistance of the surface coatings of two types of zinc-coated steel sheets for stamping, A and B, with different types of surface coatings.

[0066] The mass percentages of the coating components of A and B steel plates are the same: 97.1% Zn, 1.4% Al, 1.5% Mg.

[0067] The surface average roughness Ra of A and B steel plates is 0.9 μm (tested according to GBT2523-2008).

[0068] The surface coating of A and B steel plates is an organic coating containing resin, and the surface coating film weight of A and B steel plates is 1.0g / m 2 (measured using NR2100-Kurabo portable infrared oil film thickness gauge).

[0069] Carry out the following tests on the A and B steel plates in turn on the HEIDON Type14 surface property measuring instrument:

[0070] S1. Heating the zinc-coated steel plate to 60°C and keepin...

Embodiment 3

[0078] The invention discloses a method for testing the wear resistance of the surface coating of zinc-coated steel sheets for stamping. The purpose is to compare the wear resistance of the surface coatings of two types of zinc-coated steel sheets for stamping, A and B, with different types of surface coatings.

[0079] The mass percentage of the coating composition of A and B steel plates is the same, which is: 100% Zn.

[0080] The surface average roughness Ra of A and B steel plates is 1.0 μm (tested according to GBT2523-2008).

[0081] The surface coating of A and B steel plates is an organic coating containing resin, and the surface coating film weight of A and B steel plates is 1.2g / m 2 (measured using NR2100-Kurabo portable infrared oil film thickness gauge).

[0082] Carry out the following tests on the A and B steel plates in turn on the HEIDON Type14 surface property measuring instrument:

[0083] S1. Heating the zinc-coated steel plate to 60°C and keeping it until...

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Abstract

The invention particularly relates to an experimental method for the wear resistance of a coating of a coated steel plate, and belongs to the technical field of steel plate surface coating testing. The method comprises the following steps: a testing step: applying a preset load to a to-be-tested area of a to-be-tested steel plate by using a pressure head, and then relatively sliding the pressure head in a reciprocating manner in the to-be-tested area to obtain a to-be-tested area with grinding cracks; and a detection step: detecting the to-be-tested area with the grinding cracks, judging whether the coating of the to-be-tested area is damaged or not, if the detection result is that the coating is not damaged, gradually increasing the preset load, and repeating the testing step and the detection step in the new to-be-tested area of the to-be-tested steel plate until the detection result is that the coating is damaged, and if the detection result is damage, recording the corresponding preset load, and completing the experiment. According to the invention, the method can be used for conveniently, quickly, effectively and accurately measuring the damage limit load of the coating on the surface of the steel plate containing the zinc coating in the stamping process, so that the wear resistance of the thin coating is evaluated.

Description

technical field [0001] The invention belongs to the technical field of steel plate surface coating testing, in particular to an experimental method for the wear resistance of the coated steel plate coating. Background technique [0002] The surface of zinc-coated steel sheets is often coated. The function of the coating is to protect the coating and improve the comprehensive properties of the steel sheet surface such as corrosion resistance, heat and humidity resistance, and acid and alkali resistance. If the coating of the zinc-coated steel sheet is worn during the stamping process, the coating loses the protective effect of the coating and the overall performance decreases. Therefore, it is necessary to measure the wear resistance of the surface coating of zinc-coated steel sheets for stamping. [0003] The surface coating of zinc-coated steel sheets for stamping is generally thin, and its mass is very small. In addition, the temperature of the friction part of the zinc-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/56
CPCG01N3/56
Inventor 胡燕慧张浩王长成熊爱明刘李斌滕华湘刘光明
Owner SHOUGANG CORPORATION