Uni-directional stretching test clamp for warm shaping of metal plate

A technology of warm forming and uniaxial stretching, which is applied in the direction of analyzing materials, using stable tension/pressure to test material strength, measuring devices, etc. cumbersome and other issues
CN101608988AInactive Publication Date: 2009-12-23JIANGSU UNIV
1 Cites 42 Cited by

Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGSU UNIV
Publication Date
2009-12-23
Estimated Expiration
Not applicable ยท inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

A uni-directional stretching test clamp for warm shaping of a metal plate relates to the technology of testing warm shaping performance of metal plates. The clamp consists of a displacement magnitude leading-out part, a stretching test element positioning and clamping part and a test machine connecting part, and can lead the displacement magnitude of scale distance of a stretching test element with different softness degrees out of a heating furnace so as to provide convenience for accurately measuring the displacement by using an extensometer. After the stretching test element is provided with a clamp, the direction of a loading force and the direction of the length of the stretching test element can be ensured to be on the same line. A cooling device can effectively cool the connecting place between the clamp and a testing machine. The clamp can effectively improve the accuracy of a test result.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a technology for testing the thermal forming properties of metal sheets, in particular to a tensile test fixture for testing the mechanical properties of uniaxial tensile in the warm forming of metal sheets. Background technique

[0002] When studying the warm forming properties of metal sheets, the stress-strain curve and elongation of the material under warm forming conditions can be obtained through uniaxial tensile tests at different temperatures, so as to deduce the strain hardening index and The strain rate sensitivity coefficient is used to study the influence of each parameter on the material properties.

[0003] Compared with the tensile test at room temperature, the uniaxial tensile test under heating has many particularities. First: the tensile test piece must always be in a heated environment during the entire test process, so the displacement of the gauge length of the tensile test piece cannot be directly measure...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More