An Accurate Test Method for Resilience of Memory Alloy

A memory alloy and test method technology, applied in the direction of using stable tension/pressure to test the strength of materials, etc., can solve problems such as sample deformation
CN104316404BActive Publication Date: 2017-02-15AVIC BEIJING INST OF AERONAUTICAL MATERIALS
2 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
AVIC BEIJING INST OF AERONAUTICAL MATERIALS
Publication Date
2017-02-15

Smart Images

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

Abstract

The invention discloses an accurate measurement method for resilience of memory alloy. The method comprises the step of configuring a displacement sensor on an automatic mechanical stretcher to eliminate thermal expansion and other factors which interfere with the test result. Compared with the prior art, the technical scheme disclosed by the invention has the advantages that the method considers the influence of the thermal expansion factor due to external temperature on the resilience, so as to measure the resilience of the memory alloy more accurately.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The method is an accurate test method for the recovery force of memory alloys, and belongs to the technical field of memory alloy characteristic testing. Background technique

[0002] With the development of memory alloy research and application technology, in addition to the phase transition temperature, some structural parts also need to achieve a certain recovery force. Resilience. In recent years, in response to the above application requirements, there is a test of resilience, and the test technology of resilience is still in its infancy.

[0003] At present, there are roughly two methods for testing the recovery force of memory alloys in China: one is to use the wire to provide a small maintenance tension after pre-stretching on the testing machine to ensure the straight state of the wire, and then heat it with electricity to measure the resulting tension. , minus the maintaining tensile force, to obtain the restoring force; the other is to pro...

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