The quality of auto parts can only be applied to cars after passing the rigorous test environment, external force testing and passing the test. Environmental testing tests required for automotive parts are:
1, high temperature storage.
2. Low temperature storage.
3, wet heat alternating.
4. Condensation test.
5. Low air pressure test.
6, temperature shock test.
7, dust and water resistance test.
8, salt spray test.
9, resistant to gas corrosion.
10. Chemical resistance.
The instruments that must be used in the above tests include constant temperature and humidity test chambers, constant temperature and humidity test chambers , rapid temperature change test machines, impact test machines, ultraviolet aging test chambers, dust test chambers, and waterproof test machines.
Let us take the tire high temperature test of the automobile as an example. Explain in detail the operation steps of the test in the constant temperature and humidity test chamber are as follows:
1. The test tools prepared include automobile tires, constant temperature and humidity test chambers, printers, and power sockets.
2. First open the door, place the tire on the material test stand, and fix it to prevent it from sliding during the test.
3. Close the test chamber door.
4. Plug in the power outlet and power on.
5. The temperature to be raised in the input box of the liquid crystal display control terminal is as follows: 100 °C.
6. When the temperature reaches 100 °C, keep the temperature inside the box for about half an hour.
7. On the liquid crystal display, we will see the deformation and softness of the car tire under the action of high temperature.
8. After the test, we must wait for the temperature and humidity inside the test chamber and to reduce the ambient temperature as to open the door, as this may result in personal because the temperature is too high and scald tank.
9. Take out the car tires and use them as test samples in the future.
10. After the constant temperature and humidity test box is used, the material test frame inside must be cleaned to prevent corrosion of the environment inside the box due to sample dross.
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