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Apparatus and method for testing weld restraint stress

A technology of welding restraint and stress, which is applied in the field of devices for testing welding restraint stress, and can solve the problems of obtaining welding restraint stress data, etc.

Active Publication Date: 2020-12-15
CHNA ENERGY INVESTMENT CORP LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The problem in the prior art is how to obtain welding restraint stress data accurately and conveniently

Method used

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  • Apparatus and method for testing weld restraint stress

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Embodiment Construction

[0029] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0030] refer to figure 1 In one aspect, the present invention provides a device for testing welding restraint stress. The device includes a first support 3 and a second support 4 to form the main support structure of the whole device. After selecting the first welding sample 1 and the second welding sample 2 to be welded, according to the embodiment of the present invention, the first welding sample 1 is connected to the first support member 3, and the second welding sample 2 is connected to the The second support 4. In order to avoid data analysis obstacles caused by restraint stress forming a multi-directional coupling resultant force, the device of the pre...

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Abstract

The invention discloses an apparatus for testing welding restraint stress. The apparatus comprises a first supporting member, a second supporting member, a stress bearing assembly, and a stress measuring assembly; a first welding sample is connected to the symmetry center of the first supporting member; a second welding sample is connected to the symmetry center of the second supporting member; the portions to be welded of the first welding sample and the second welding sample are close to each other; the stress bearing assembly is connected between the first supporting member and the second supporting member in a stress-adjustable manner so as to deform correspondingly when bearing the welding restrain stress; and the stress bearing assembly is symmetrically disposed with respect to the symmetry centers of the first supporting member and the second supporting member; and the stress measuring assembly is connected to the stress bearing assembly and is used for outputting the welding restraint stress borne by the stress bearing assembly. The present invention also discloses a method for testing weld restraint stress. With the apparatus and method for testing welding restraint stressof the invention adopted, the welding restraint stress borne by the welding samples can be accurately acquired during a welding process, and the magnitude of the welding restraint stress borne by thewelding samples can be controlled.

Description

technical field [0001] The invention relates to the field of welding, in particular to a device and method for testing welding restraint stress. Background technique [0002] The weldment is fixed by the outside or due to the influence of its own rigidity, the deformation during the welding process is limited, so the welding restraint stress is generated. In the experimental research of welding of high-temperature metal materials, it is necessary to load and monitor different restraint stresses to explore the failure mechanism of metal materials closer to the real use environment, and to effectively predict and control the life of these materials under service conditions. [0003] A difficult problem in the prior art is how to obtain welding restraint stress data accurately and conveniently. Contents of the invention [0004] The purpose of the present invention is to solve the problems existing in the prior art, and provide a device and method for testing welding restrai...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01L5/00
CPCG01L5/0047
Inventor 李君郭屹秦强
Owner CHNA ENERGY INVESTMENT CORP LTD
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