The quality of the exterior of the trim is related to the initial comfort impression of the vehicle, and at the same time, it shoulders the responsibility of resisting the impact of the environment on the body. Therefore, in addition to the requirements of beautiful and generous, the external accessories in strength, toughness, environmental resistance and impact resistance and other important aspects of the indicators, to ensure that they can meet the design requirements under normal use conditions and provide sufficient safety guarantee. With the continuous development of automobile industry, the mechanical performance test of automobile accessories gets more and more attention.
Common Testing items of mechanical properties of automotive exterior accessories：
Tensile test: a test method for determining the characteristics of automobile exterior accessories and products under axial tensile load. It can be conducted at room temperature, high temperature and low temperature environment.
Bending test: the test of measuring the mechanical characteristics of the automobile exterior accessories under the bending load is one of the basic methods of the mechanical properties test of materials. Common test items include bending modulus, bending strength, etc.
Hardness test: under certain test conditions, press the hardness meter into the depth of the surface of the material for testing. The test method is simple, fast and accurate, so it is widely used in the hardness testing of automobile exterior accessories.
Impact test: Test the protection ability of the automobile exterior trim in the case of collision. This kind of test is usually carried out by the impact test machine, whose main principle is to simulate the force of the external trim of the car during the collision in the process of driving, so as to test its protection ability and damage degree.
5. Durability test: test the durability and reliability of the automobile exterior trim in long-term use. This test usually adopts the method of simulating mechanical motion, and tests the long time vibration, reciprocating motion, temperature change and so on, so as to simulate the various environments and forces of the automobile external trim parts in the process of use, and detect their stability and reliability after a long time of use.
After completing the mechanical properties test of automobile exterior trim, the test results need to be analyzed and evaluated. The test results mainly include strength, stiffness, durability, protection ability and other performance indicators. According to the test results, the design and manufacture of automobile exterior accessories can be optimized to improve their mechanical properties and safety.
GRGTEST Approved by more than 60 oMs,covering domestic mainstream independent brands, European, American, Japanese and South Korean car companies. According to the national layout of the automobile industry, the mechanical mechanical performance testing ability of the automobile accessories is relatively complete, which can provide services for the whole life cycle of the product.