Sample for steel wire bonding performance testing of high-capacity tire body and preparation method and testing method thereof
A technology for testing samples and adhesive properties, which is applied in the preparation of test samples, the use of stable tension/compression to test the strength of materials, and measuring devices. It can solve the problem of whether the effect of adhesion can achieve the expected effect. Whether the tensile strength can achieve the expected effect cannot be demonstrated, etc., to make up for the lack of testing technology, the effect is obvious, and the principle is simple.
Inactive Publication Date: 2017-05-10
HANGZHOU CHAOYANG RUBBER
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Problems solved by technology
[0003] 1. New product development: After the trial production of new products, the company will test the static performance of the tire (fill the tire with the corresponding air pressure to measure the main size of the tire, ground pressure distribution, rigidity), dynamic performance (indoor tire rolling resistance, high speed, durability) performance index data , there is no relevant standard for the test of tire carcass steel wire and rubber adhesion performance
[0004] 2. Raw material replacement: At present, there are many types of carcass steel wire structures for tires. Various steel wire companies are constantly developing new steel wires with different structures, different tensile strengths and different coating thicknesses (copper plating / galvanizing). It is impossible to demonstrate that the expected effect is achieved
Whether the impact on the adhesion of the finished tire frame material after the adjustment of the vulcanization process index achieves the expected effect cannot be demonstrated
Method used
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[0027] The invention discloses a method for preparing a test sample for carcass steel wire adhesion performance of a truck tire, which is characterized in that the sample is derived from a finished tire. The main purpose of the present invention is to evaluate the bond performance between the steel wire and the rubber after vulcanization of the carcass steel wires with different structural compositions and use different thermo-oxidative aging times to simulate the actual use of tires in the middle and late stages of tire steel wire and rubber bonding. Evaluation and evaluation of compound formulation optimization.
[0028] (1) Cut the tire into a section of 300mm along the driving direction, and adjust it according to the general procedure of GB / T2941 rubber physical test method sample preparation and adjustment.
[0029] (2) Mark and mark the parts to be prepared on the section with a marker pen, and use a scalpel to remove the tire tread rubber and belt layer steel wires. Du...
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Abstract
The invention belongs to the technical field of steel wire bonding performance evaluation of a finished tire body after tire vulcanization and particularly relates to a sample for steel wire bonding performance testing of a high-capacity tire body and a preparation method and testing method thereof. The method for preparing the sample for steel wire bonding performance testing of the high-capacity tire body comprises a step 1) of cutting a finished tire in the circumferential direction to form a cross section of 250-300 mm; a step 2) of using a marking pen to identify and label to-be-prepared parts on the cross section, and using a scalpel to remove tire tread rubber and belt ply steel wires, wherein the rubber in a mark area cannot be damaged in the operation process; causing the distance between to-be-tested steel wires to be not smaller than 13 mm, and preparing a cross section tire shoulder part and a tire side part into a sample which is 100-300 mm long and 100-300 mm wide; and a step 3) of causing the test sample to stand and be adjusted for no less than 8 h at 25+ / -2 DEG C after the sample is prepared. The preparation method is simple in principle and obvious in actual effect, and the shortcomings in an existing testing technology are overcome.
Description
technical field [0001] The invention belongs to the technical field of evaluation of steel wire bonding performance of finished tire carcass after tire blank vulcanization, and in particular relates to sample preparation and testing for measuring the bonding performance of steel wire and rubber of finished tire carcass. Background technique [0002] Radial truck tire is an updated product of the tire industry. It has the advantages of safe driving, low rolling resistance, fuel saving and wear resistance, and can reduce transportation costs. Its economic value and social benefits are very significant, so it is developing very rapidly in countries all over the world. It is the industrial policy of my country's tire industry to vigorously develop radial tires in a planned way. With the application of new technologies and new materials in the automobile industry and the improvement of various performances of automobiles, the technical performance requirements of tires such as st...
Claims
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IPC IPC(8): G01N1/28G01N19/04G01N3/08
CPCG01N1/28G01N3/08G01N19/04
Inventor 陈水良
Owner HANGZHOU CHAOYANG RUBBER