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Extensometer guide rod system and method for high-temperature tension test by using system

A technology of tensile test and extensometer, applied in the direction of applying stable tension/pressure to test the strength of materials, measuring devices, instruments, etc., to achieve the effects of low manufacturing cost, wide application range and simple structure

Inactive Publication Date: 2015-11-18
SHANGHAI ELECTRIC NUCLEAR POWER EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The determination of Rp0.2 needs to be done with an extensometer, but in a high temperature state, how to use the existing room temperature extensometer to measure the high temperature tensile Rp0.2 of the sample is a difficulty in the prior art

Method used

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  • Extensometer guide rod system and method for high-temperature tension test by using system
  • Extensometer guide rod system and method for high-temperature tension test by using system
  • Extensometer guide rod system and method for high-temperature tension test by using system

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Embodiment Construction

[0026] The following combination Figure 1 ~ Figure 3 , a preferred embodiment of the present invention is described in detail.

[0027] Such as figure 1 As shown, the extensometer guide rod system provided by the present invention is used to carry out a high temperature tensile test on the tensile sample 7, including: a first sample clamp 1, which is clamped and sleeved on the tensile sample 7 One end; the second sample holder 2, which is clamped and sleeved at the other end of the tensile sample 7; the positioning device 3, which is connected and arranged between the first sample holder 1 and the second sample holder 2; One end of the rod 4 passes through the second sample holder 2 and is fixedly connected to the first sample holder 1, and the other end is connected to the normal temperature extensometer 8 to collect the material deformation of the tensile sample 7 in a high temperature environment.

[0028] Between the first sample holder 1 and the tensile sample 7, and b...

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Abstract

The invention relates to an extensometer guide rod system, which is used for performing high-temperature tension test on a tension sample and comprises a first sample clamp, a second sample clamp, a positioning device and an extension guide rod; the first sample clamp clamps and sleeves one end of the tension sample; the second sample clamp clamps and sleeves the other end of the tension sample; the positioning device is connected and arranged between the first sample clamp and the second sample clamp; one end of the extension guide rod penetrates the second sample clamp and then is fixedly connected with the first sample clamp; the other end of the extension guide rod is connected with a normal temperature extensometer. The invention also relates to a method for the high-temperature tension test by using the extensometer guide rod system. The extensometer guide rod system is simple in structure, convenient and safe in clamping, fast to use, low in manufacturing cost, wide in applicable range and capable of effectively improving the accuracy of the normal temperature extensometer for the high-temperature tension test.

Description

technical field [0001] The invention relates to a fixture, in particular to an extensometer guide rod system and a method for performing a high-temperature tensile test using the extensometer guide rod system. Background technique [0002] Nuclear power equipment manufacturers usually need to assess the high-temperature tensile index of materials when they inspect raw materials, welding materials, welding procedures, and product witness tests. Since most materials and welding consumables have no obvious yield under high temperature conditions, it is necessary to measure Rp0.2 (specified plastic elongation strength) as an assessment index. The measurement of Rp0.2 needs to be completed by using an extensometer, but in a high temperature state, how to use the existing normal temperature extensometer to measure the high temperature tensile Rp0.2 of the sample is a difficulty in the prior art. Contents of the invention [0003] The purpose of the present invention is to provi...

Claims

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Application Information

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IPC IPC(8): G01N3/02G01N3/18
Inventor 李晓冬赵炜顾佳磊叶世亮
Owner SHANGHAI ELECTRIC NUCLEAR POWER EQUIP CO LTD
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