A continuous test method for abrasion of short fiber radially oriented tread rubber

Abstract

The invention belongs to the technical field of rubber abrasion detection, and relates to a short fibre radial orientation tread rubber abrasion continuous testing method. The short fibre radial orientation tread rubber abrasion continuous testing method comprises specifically manufacturing and fixing of a sample, loading of a grinding mechanism, rotating of a grinding wheel, deflecting of the grinding wheel, weighing of sample particles and result comparing; the adjustment of different loads is realized by the loading control of the grinding mechanism, the adjustment of different rotation speeds is realized by controlling the rotating of the grinding wheel, and the adjustment of different abrasion angles is realized by the controlling of the deflection of the grinding wheel; when a new test is performed, the next experiment is performed by taking the sample on the rubber wheel and bonding the new sample without stopping a machine, so as to realize the continuous test; by the method, the technology gap in the short fibre radial tread rubber abrasion test in the prior art is filled, the wearing resistance of the short fibre radial orientation tread rubber under different conditions is indicated truly and effectively; the testing efficiency is high, and the method is applicable for industrial production.

Description

[0001] Technical field: [0002] The invention belongs to the technical field of rubber abrasion detection, and relates to a rubber abrasion test method, in particular to a continuous short fiber radially oriented tread rubber abrasion test method for testing short fiber radially oriented tread rubber under different environmental conditions Under the abrasion performance. [0003] Background technique: [0004] So far, common testing methods for rubber abrasion in the laboratory include Akron abrasion, DIN abrasion and Grassili abrasion. The Akron abrasion test method is based on a ring sample under a certain speed and a certain load. , Rolling friction with alumina grinding wheel at a certain inclination angle; this method is mainly suitable for rubber materials with a Shore hardness of 55-80. Although the involved device has a simple structure and is widely used, it is more troublesome to prepare samples and relatively sliding The ratio is different for different rubbers, resulti...

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Problems solved by technology

[0004] So far, the common test methods for rubber wear in the laboratory include Akron abrasion, DIN abrasion and Grassier abrasion and other experimental methods. , with a certain inclination angle to carry out rolling friction with the alumina grinding wheel; this method is mainly suitable for rubber materials with a Shore hardness of 55-80. Although the device involved is simple in structure and widely used, it is troublesome to prepare the sample and relatively slippery The ratio is different for different rubbers, resulting in a certain impact on the wear results; the DIN wear test method is to press a cylindrical sample with a certain load on a rotating sandpaper roller, and the sample is placed on the roller Do lateral movement on the top, and measure the wear volume of the cylindrical sample after a certain stroke. In this test, both the load and the roughness of the sandpaper have a decisive influence on the wear volume. Therefore, it is necessary to regularly correct the load and replace the sandpaper. This test method has the required The sample is small, the test method is simple and easy to operate, and the data error is small, but the maintenance cost is high and the test conditions cannot be adjusted; the Grassili abrasion test method is to press the sample on a sandpaper disc rotating at a constant speed, and measure The volume wear of a certain stroke (or power). In this method, the volume wear of the sample increases with the increase of load, speed and temperature. The particle size of the sandpaper has a greater impact on the wear volume. The coarser the sandpaper particles, the greater the wear volume. Big

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