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Fixing device for metal sheet high temperature tensile extensometer

A technology of thin metal plates and fixing devices, applied in the direction of measuring devices, applying stable tension/pressure to test material strength, instruments, etc., to achieve the effects of convenient operation, low manufacturing cost and simple structure

Active Publication Date: 2018-12-07
AVIC BEIJING INST OF AERONAUTICAL MATERIALS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this device is mainly designed for the tensile test of bar samples, and the room temperature extensometer should not be used to measure the tensile properties of materials in high temperature environments

Method used

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  • Fixing device for metal sheet high temperature tensile extensometer
  • Fixing device for metal sheet high temperature tensile extensometer

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Embodiment Construction

[0016] The device of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments:

[0017] See attached Figure 1~2 As shown, the fixing device of this kind of metal sheet high temperature tensile extensometer is characterized in that: the device includes an upper clamping block 1 and a lower clamping block 2 with the same shape and structure, and the upper clamping block 1 and the lower clamping block 2 are connected by the sleeve guide rod 3, the height of the sleeve guide rod 3 is adjustable to adapt to the fixation of the sample 5 with different gauge lengths, the two clamping blocks are in the shape of a semicircle, and the upper clamping block 1 The vertical through groove 4 is processed on the side plane of the lower clamping block 2, the sample 5 is inserted in the through groove 4 of the upper clamping block 1 and the lower clamping block 2, the upper clamping block 1 and the lower clamping block The w...

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Abstract

The invention relates to a fixing device for a metal sheet high temperature tensile extensometer, the fixing device fixes the high-temperature extensometer by upper and lower clamping blocks, whereinthe two clamping blocks in the form of a semicircular block are provided with through grooves at sample contact portions to fix a sample, and are provided with annular grooves at curved parts to facilitate connecting with the high-temperature extensometer by a fixing line. A guide rod of the fixing device is provided with a telescopic sleeve which is convenient for use of samples of different gauge lengths. The fixing device has the advantages of simple structure, convenient and easy operation AND low manufacturing cost, is suitable for high-temperature tensile tests of metal sheets of variousthicknesses and lengths, and effectively avoids the breakage of the fixing line, falling off of the extensometer and failed testing caused by direct contact with a thin plate sample at high temperature.

Description

technical field [0001] The invention relates to a fixing device for a high-temperature tensile extensometer of a thin metal plate, which belongs to the technical field of testing. Background technique [0002] High-temperature tensile properties of metal sheets are an important test method for the static properties of materials. Obtaining the high-temperature tensile properties of metal sheets is of great significance for material selection and design. When the metal sheet is subjected to a high-temperature tensile test, the asbestos fixing wire used to fix the extensometer is often broken under the dual effects of high-temperature environment and sheet cutting, causing the extensometer to detach, the test fails, the material loss is large, and the test efficiency is low. At present, there are few studies at home and abroad on the fixing device of the high-temperature tensile extensometer of the metal sheet. The Chinese patent application publication number CN 105067425A di...

Claims

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Application Information

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IPC IPC(8): G01N3/04G01N3/08G01N3/18
CPCG01N3/04G01N3/08G01N3/18
Inventor 高倩倩左强张丽娜胡本润杨伟
Owner AVIC BEIJING INST OF AERONAUTICAL MATERIALS
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