Compression stress relaxation test apparatus for rubber test specimens

Abstract

The invention discloses a compression stress relaxation test apparatus for rubber test specimens. The compression stress relaxation test apparatus comprises an electronic universal testing machine and a test specimen loading component. The electronic universal testing machine comprises a movable transverse beam and a static transverse beam, a test chamber is arranged between the movable transverse beam and the static transverse beam, a connecting rod which extends from the top of the test chamber to an inner cavity of the test chamber is arranged on the static transverse beam, a draw bar which extends from the bottom of the test chamber to the inner cavity of the test chamber is arranged on the movable transverse beam, the test specimen loading component is positioned in the test chamber, the top of the test specimen loading component is connected with the connecting rod, the bottom of the test specimen loading component is connected with the draw bar, and the test specimen loading component can be driven by the draw bar to apply compression load on a rubber test specimen in the test specimen loading component. The compression stress relaxation test apparatus has the advantages that the compression stress relaxation test apparatus is simple in structure, easy to mount, convenient to operate and high in accuracy class, and the rubber test specimens, particularly small rubber test specimens, can be tested by the aid of the compression stress relaxation test apparatus at various temperatures.

Description

technical field [0001] The invention relates to a compression stress relaxation test technology of a rubber test piece, in particular to a compression stress relaxation test device for a rubber test piece. Background technique [0002] Because of its good elasticity, insulation and sealing properties, rubber materials are widely used in industry and life such as tire industry, shoe industry, shock absorber and sealing structure. When the rubber material is applied to the sealing structure, the rubber sealing ring will be squeezed due to the deformation of other structures. When the deformation of other structures recovers, the rubber material will rebound incompletely or not, resulting in seal failure. Therefore, this type of rubber material needs to undergo a compression stress relaxation test to assess its compression performance. Directly intercepting the sealing ring to prepare the relaxation test specimen is not only convenient and quick, but also can eliminate the inf...

AI Technical Summary

Problems solved by technology

The current compressive stress relaxation test device is composed of multiple parts, with complex structure and cumbersome operation. It is a set of special equipment only used for compressive stress relaxation test, and it needs to prepare special test pieces, so it is impossible to use small test pieces directly prepared by sealing rings. pieces

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