Device and method for testing finished tire tread rubber Acron wear
A technology for finished tires and tread rubber, applied in the field of devices for testing the wear of the tread rubber of finished tires, it can solve the problems of inability to accurately measure the wear of the tread rubber of the finished tire and the inability to know the wear of the tread rubber, and achieve the test time Short, low-cost, simple-to-operate effect
Active Publication Date: 2018-01-16
JIANGSU GENERAL SCI TECH
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Problems solved by technology
Sampling can only be taken under the tread block, which makes it impossible to accurately measure the tread rubber wear of the finished tire
It is also impossible to know the wear of tread rubber with different degrees of vulcanization at different depths.
Method used
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[0024] The present invention will be further described below in conjunction with specific drawings.
[0025] Such as figure 1 As shown, the device for testing the tread rubber Acron wear of finished tires of the present invention comprises a rubber wheel 1, the outer contour of the rubber wheel 1 is circular, the diameter of the rubber wheel 1 is 6.8 cm, and the thickness of the rubber wheel 1 is 12.7 cm. mm±0.2mm; a fan-shaped protrusion 2 is set every 45° on the circular outer contour of the rubber wheel 1, and a groove 4 is formed between adjacent fan-shaped protrusions 2, and the height of the fan-shaped protrusion 2 is 1.6mm The hardness of the rubber wheel 1 is 75 degrees to 80 degrees (Shore A), and the center of the rubber wheel 1 is provided with a central hole 3, and the diameter of the central hole 3 is consistent with the diameter of the rotary shaft of the rubber wheel.
[0026] The method for said testing finished tire tread rubber Acron wear, comprises the foll...
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Abstract
The invention relates to a device and method for testing the wear of the tread rubber Acron of a finished tire, comprising a rubber wheel with a central hole in the center of the rubber wheel; A plurality of fan-shaped protrusions are arranged at intervals on the circular outer contour, and grooves are formed between adjacent fan-shaped protrusions. The height of the fan-shaped protrusion is 1.6mm. The diameter of the rubber wheel is 6.8cm, and the thickness of the rubber wheel is 12.7mm±0.2mm. The interval between the adjacent fan-shaped protrusions is 45°. The method for testing the Akron wear of the tread rubber of the finished tire is characterized in that it comprises the following steps: (1) taking a sample from the finished tire and polishing it for 15-20 minutes to make the thickness of the surface of the spline consistent, and the length of the spline is 3.88cm , the thickness is 3.2mm, and the width is 12.7mm; (2) Bond the spline to the groove of the rubber wheel, and the width of the groove is consistent with the length of the spline; (3) Test according to the method of GB / T1689‑1998 . The invention can shorten the sample length during testing, and can sample and test different pattern types and different depths.
Description
technical field [0001] The invention relates to a simple device and method for testing the abrasion of the tread rubber of a finished tire. Background technique [0002] The manufacturing process of tires is mainly divided into the mixing of rubber materials, the extrusion (calendering) of each component, the molding of components and the vulcanization process. The wear performance of the tire tread rubber formula can be obtained by testing the Akron wear. At present, the domestic standard mainly adopts the national standard GB / T1689-1998 for testing. The preparation of samples and samples shall comply with the provisions of GB / T 9865.1. The sample is strip-shaped, with a length of (68+2×3.2)π≈23.3cm, a width of 12.7mm, and a thickness of 3.2mm. The rubber wheel has a diameter of 68mm and a thickness of 12.7mm. Test samples can be obtained by vulcanizing the compound rubber in an abrasive tool of corresponding size. [0003] The detection of the actual wear of the finish...
Claims
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IPC IPC(8): G01N3/56
Inventor 朱健鹏张洪学刘宇艳赵江华
Owner JIANGSU GENERAL SCI TECH