Abrasion wheel and sample preparation method for Akron abrasion test

Abstract

The invention discloses a sample preparation method for an Akron abrasion experiment. The sample preparation method comprises the following steps of directly winding an experiment rubber strip on an abrasion wheel; directly vulcanizing the experiment rubber strip on the abrasion wheel, and discharging waste rubber through rubber overflowing slots of the abrasion wheel. The invention also discloses the abrasion wheel for the Akron abrasion experiment. The abrasion wheel consists of a middle disk body, an upper disk body and a lower disk body, wherein the rubber overflowing slots are formed between the middle disk body and the upper and lower disk bodies. According to the sample preparation method disclosed by the invention, the sample preparation process can be simplified, the influence on an experiment result in the sample preparation process is alleviated, and deflection among experiment data can be effectively relieved; meanwhile, a conclusion is obtained through an experiment; the standard deflection of an Akron abrasion value measured by the sample preparation method disclosed by the invention is obviously lower than the abrasion value measured by the conventional sample preparation method; furthermore, the measured abrasion volume is reduced; according to the novel method, the abrasion error caused by the sample preparation process is reduced.

Description

technical field [0001] The invention relates to the field of sample preparation for Akron abrasion experiments, in particular to an abrasion wheel for Akron abrasion experiments, and also to a sample preparation method for Akron abrasion experiments. Background technique [0002] At present, the wear resistance test of the rubber field in my country mainly adopts the Akron abrasion test method. According to the requirements of GB / T1689-1998, both sides of the sample should be polished before the test, and it should be pasted on the rubber wheel with an adhesive (required not to be in a stretched state. ). However, in the actual test, there are many problems in the sample preparation process as follows. [0003] (1) The process is complicated. The preparation process of the test sample is generally: vulcanization of the sample → application of adhesive → drying → pre-grinding. [0004] (2) The bonding effect is unstable. Sometimes the sample cracks during the abrasion proc...

AI Technical Summary

Problems solved by technology

[0004] (2) The bonding effect is unstable

Sometimes the sample cracks during the wear process due to weak adhesion, resulting in test failure

[0005] (3) Complicated handling of bonded joints

Joint bonding generally adopts the double bevel joint method, and the test often fails due to damage at the joint

[0006] (4) The result is greatly affected by the bonding operation

Due to the length error, the samples are in different stretched or compressed states after lamination, which affects the test results

[0007] (5) Abrasive wheel reuse

The T1689-1998 national standard stipulates that the hardness of the abrasive wheel is between 75-80, but due to repeated use, there will be deviations, and when the experimental rubber strip is removed from the abrasive wheel, it is easy to cause loss of the quality of the abrasive wheel, which will affect the experimental results.

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