HONG KONG CRS INTERNATIONAL TRADING COMPANY LIMITED

HONG KONG CRS INTERNATIONAL TRADING COMPANY LIMITED

Why Oil Pump need to be tested

2026 04/10

We all know that Oil Pump are the main guarantee for the safe operation of automobiles. Do you know that Oil Pump need to undergo strict testing before leaving the factory? Today, Transmission Hard Parts manufacturers will tell you about several common tests and why they need to be tested. Let's take a look.

Jf015e Automobile Oil Pump Accessories

1. Why do we need to do corrosion resistance tests
Since Oil Pump are exposed to the air, they must work in wind, rain, snow, and fog. If the user does not use them for a period of time, poor quality metal Oil Pump will rust. This may cause the braking to return smoothly due to the corrosion of metal parts during driving, and there will be dragging. It is also possible that the braking effect is poor due to the corrosion of the lining, which will bring safety accidents.
2. Why do we need to do water resistance tests
Since Oil Pump are components exposed to the air, the products of general host supporting manufacturers will require water resistance tests. The types of water resistance tests are: spray test, water sprinkling test, water spray test and immersion test, which are mainly used to test the braking effect of Oil Pump under conditions such as rainy days and waterlogged roads.
3. Why do we need to do chemical resistance test?
The friction materials of Oil Pump are composed of a variety of organic and inorganic materials. During the production process, only a small number of materials, such as adhesives, change during the heating process, while many materials do not change. That is to say, the chemical properties of these materials still retain their original properties after manufacturing. Therefore, some performance changes will occur under the erosion of some organic chemical solvents, which is not allowed.
4. Why do we need to do salt spray test?
Oil Pump need to do salt spray test, which is essentially to check the corrosion resistance of the product, not only the corrosion resistance of the friction material but also the corrosion resistance of the coating. For this reason, salt spray test is required.