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Method for measuring elongation rate of material

A measurement method and elongation technology, which is applied in the field of material elongation measurement, can solve the problems of increasing difficulty in material elongation measurement and complicated sampling process, etc.

Active Publication Date: 2018-06-29
国能锅炉压力容器检验有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when measuring the elongation of the material, sampling is required each time. Due to the complexity of the sampling process, the measurement of the elongation of the material is more difficult.

Method used

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  • Method for measuring elongation rate of material
  • Method for measuring elongation rate of material

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Embodiment Construction

[0021] The core of the invention is to provide a method for measuring the elongation of a material, so as to reduce the difficulty of measuring the elongation of the material.

[0022] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0023] Please refer to figure 1 and figure 2 , in a specific embodiment, the method for measuring the elongation of a material provided by a specific embodiment of the present invention includes the steps of:

[0024] A1: Calibrate the mark to be pressed at the preset position of the material.

[0025] In order to improve the measurement accuracy, preferably, the surface roughness Ra of the preset position of the material is not greater than 1.6 μm, and the diameter of the flat part of the surface is greater than 3 times the diameter of the ball indente...

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Abstract

The invention discloses a method for measuring the elongation rate of a material. The method comprises following steps: step one, marking a label on a position for pressing of a material; step two, using a ball-pressing head to press the labeled position of the material; and step three, measuring the surface area of the pressure mark by a scanner. According to the provided method, the material surface is directly pressed by the ball-pressing head, the elongation rate of the material is measured by a pressure mark method, individual sampling is avoided, and the elongation rate measuring difficulty is effectively reduced.

Description

technical field [0001] The invention relates to the technical field of material elongation measurement, in particular to a method for measuring material elongation. Background technique [0002] The elongation of materials is one of the conventional mechanical properties of materials, and tensile properties are the main technical indicators and important basis for evaluating the mechanical properties of metal materials. [0003] Specifically, when measuring the elongation of a material, sampling is first performed, then a test is performed, and then the deformation is measured, and finally the relative elongation of the material is calculated to obtain the elongation. However, when measuring the elongation of the material, sampling is required each time. Due to the complexity of the sampling process, the measurement of the elongation of the material is more difficult. [0004] Therefore, how to reduce the difficulty of measuring the elongation of materials is a technical pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/28G01N3/06
CPCG01N1/286G01N3/068
Inventor 牛晓光代小号郝晓军陈双双张广兴郑相锋王志永王强杨新军陶业成
Owner 国能锅炉压力容器检验有限公司