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Analysis method of liner cracking

A method of analysis, a technique of inner liner, applied in the direction of optical testing for flaws/defects, etc.

Active Publication Date: 2019-12-27
HAIER SMART HOME CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the cracking quality problem of the liner of refrigerators and other refrigeration equipment is an unavoidable chronic disease, causing a lot of quality loss costs to enterprises

Method used

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  • Analysis method of liner cracking
  • Analysis method of liner cracking

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Embodiment Construction

[0022] The present invention will be described in detail below with reference to the embodiments shown in the accompanying drawings. However, this embodiment does not limit the present invention, and any structural, method, or functional changes made by those skilled in the art according to this embodiment are included in the protection scope of the present invention.

[0023] see figure 1 It is a schematic flow sheet of the liner crack analysis method of the present invention, and the liner crack analysis method mainly includes the following steps:

[0024] Provide some inner tank samples;

[0025] providing a stress generating device to apply stress to the liner sample and cause the liner sample to crack to generate a first crack;

[0026] Obtaining cross-sectional feature patterns at different positions of the first crack through testing;

[0027] Provide the liner with the second crack to be analyzed, test the cross-sectional pattern at different positions of the second...

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Abstract

The invention provides an inner container cracking analysis method, which mainly comprises the following steps: providing a plurality of inner container samples and a stress generation device, applying stress to the inner container samples so as to lead the inner container samples to be cracked and generate first cracks; testing and acquiring the cross section characteristic pattern of the first cracks at different positions; and providing an inner container to be analyzed and generating a second crack, testing to obtain the cross section pattern of the second crack at different positions, and comparing the cross section pattern with the cross section characteristic pattern, so as to determine the cracking starting position of the second crack. By adopting the inner container cracking analysis method, the cracking starting position of the inner container and the expansion direction of the crack can be determined through performing cross section appearance comparison analysis of the inner container cracks, so as to facilitate the follow-up inner container forming and analysis and improvement of technological assembling structure.

Description

technical field [0001] The invention relates to the technical field of refrigeration equipment, in particular to a crack analysis method for an inner tank. Background technique [0002] At present, the cracking quality of the liner of refrigerators and other refrigeration equipment is an unavoidable chronic problem, which causes a lot of quality loss costs to enterprises. We know that the liner will crack under the action of stress, but the crack propagation mechanism is related to many factors. The material, structure and assembly method of the liner, as well as the microstructure changes of the material, may cause the cracks of the liner to expand in different directions. . In addition, through the analysis of a large number of refrigerators with cracked inner liners, the cracking process of the inner liner starts from a certain point where the cracking starting point appears, and then the cracks spread from the starting point to the surroundings in an instant. Therefore...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/95
CPCG01N21/95
Inventor 贾振飞王海娟戴建斌李鹏朱小兵
Owner HAIER SMART HOME CO LTD