Method for measuring depth of roller body hardening layer

Abstract

The invention relates to a method for measuring a depth of a roller body hardening layer. The method comprises the following steps of: 1) selecting a test roller; 2) processing a temperature measurement hole; 3) burying a thermocouple; 4) acquiring temperature; and 5) analyzing a test result. The method has the characteristics that the test data is detailed, the test period is short, the process time of a test is 4-5 hours or so, the test cost is low, a test material and equipment can be reused, the credibility of the test result is high and the like.

Description

technical field [0001] The invention relates to a method for measuring the depth of a hardened layer of a roll body. Background technique [0002] For the determination of the depth of the hardened layer on the roll body, the most common method is to use peeling or sectioning to check the radial hardness distribution, but these two methods are time-consuming and occupy equipment for a long time. At the same time, the consumption of test materials is large. The cost is high, and a test roll is basically scrapped after a hardened layer measurement. Therefore, it is necessary to consume a lot of materials for the test roll to optimize the heat treatment process and study the influence of heat treatment process parameters on the depth of the roll hardened layer. , time-consuming and labor-intensive and costly. Therefore, it is of great significance to study a reusable and low-cost method for measuring the depth of the hardened layer on the roll body for the research and improvem...

AI Technical Summary

Problems solved by technology

[0002] For the determination of the depth of the hardened layer on the roll body, the most common method is to use peeling or sectioning to check the radial hardness distribution, but these two methods are time-consuming and occupy equipment for a long time. At the same time, the consumption of test materials is large. The cost is high, and a test roll is basically scrapped after a hardened layer measurement. Therefore, it is necessary to consume a lot of materials for the test roll to optimize the heat treatment process and study the influence of heat treatment process parameters on the depth of the roll hardened layer. , time-consuming and labor-intensive and costly. Therefore, it is of great significance to study a reusable, low-cost method for measuring the depth of the hardened layer on the roll body for the research and improvement of the roll surface quenching process.

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