Equipment and method for testing interface bonding strength
A technology of interface bonding strength and equipment, applied in the direction of applying stable tension/pressure to test material strength, measuring devices, and mechanical devices, etc., can solve the problem of unstable tearing process of aluminum-steel tear angle, unreliable results, and impossibility Aluminum-steel composite strip testing and other issues, to achieve the effect of stable, reliable and comparable test results
Active Publication Date: 2017-05-17
YINBANG CLAD MATERIAL
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[0004] The first purpose of the present invention is to provide a device for testing the interface bonding strength, to solve the problem that the traditional tearing method of aluminum-steel tearing angle is unstable during the tearing process, resulting in large fluctuations in test results and unreliable results technical problem
[0005] The second object of the present invention is to provide a method for testing the interfacial bonding strength of aluminum-steel composite strips, to solve the problem that the tearing method cannot be used to test the interfacial bonding strength of aluminum-steel composite strips, and the traditional tearing method of aluminum-steel The tearing angle is unstable during the tearing process, resulting in large fluctuations in test results and unreliable technical problems
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[0039] Hereinafter, embodiments of an apparatus for testing interface bonding strength and a method for testing interface bonding strength of the present invention will be described with reference to the accompanying drawings.
[0040] The examples described here are specific specific implementations of the present invention, and are used to illustrate the concept of the present invention. They are all explanatory and exemplary, and should not be construed as limiting the implementation of the present invention and the scope of the present invention. In addition to the embodiments described here, those skilled in the art can also adopt other obvious technical solutions based on the claims of the application and the contents disclosed in the description, and these technical solutions include adopting any obvious changes made to the embodiments described here. Replacement and modified technical solutions.
[0041] The accompanying drawings in this specification are schematic dia...
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Abstract
The invention discloses equipment and a method for testing interface bonding strength. The equipment comprises a fixing device, a sliding device and a test sample holding device, wherein the fixing device comprises a base, a first bearing seat, a second bearing seat, a first rotating shaft and a second rotating shaft; the sliding device comprises a guide rail and a pulley; the guide rail is fixedly connected with the base of the fixing device; the guide rail limits the movement of the pulley along the guide rail; the test sample holding device comprises a chassis and a press plate, the pulley of the sliding device is fixedly at the lower part of the chassis; and the press plate is used for fixing the end of a test sample to the chassis. With the equipment and the method for testing interface bonding strength, the test sample interface bonding strength testing results are stable and reliable, and the bonding strength results of different batches are highly comparable. The equipment and the method of the invention overcome the problems in evaluating interface bonding strength of an aluminum steel composite strips for a brazed heat exchanger by using tension shearing, tearing, pressure shearing or conventional methods, including fracture of the aluminum layer and difficulty in evaluation.
Description
technical field [0001] The invention belongs to the technical field of performance testing of metal materials, in particular to equipment for testing interface bonding strength and a method for testing interface bonding strength realized by using the device. Background technique [0002] The aluminum-steel composite strip used in the brazed heat exchanger is a composite strip made of bimetallic composites of aluminum and steel. Between mm, because the thickness of the coated aluminum layer is very thin, the aluminum layer will break and it is difficult to evaluate the interface bonding strength using conventional methods such as tensile shearing, tearing, and compressive shearing. The evaluation of the interface bonding strength of aluminum-steel composite strip can only be done by bending test, but this bending test method can only qualitatively detect and evaluate whether the bonding strength of the aluminum-steel interface meets the requirements, and is not suitable for e...
Claims
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IPC IPC(8): G01N19/04G01N3/08
Inventor 张小军李龙周德敬
Owner YINBANG CLAD MATERIAL