Automotive Controller Rubber O-Ring

About Automotive Controller Rubber O-Ring

Automotive controller rubber O-ring is usually placed in grooves in the housing to prevent leakage of internal liquids or gases. Due to its good elasticity and sealing performance, the O-ring can fit tightly in the groove, effectively preventing leakage.

Performance Requirements

Automotive controller rubber O-ring must possess a variety of high-performance features. First of all, it needs to have good elasticity and sealing properties to ensure that it can fit tightly in the groove under various working conditions and effectively prevent the leakage of liquid or gas.

Secondly, it also needs to have high temperature resistance, oil resistance, corrosion resistance and other properties to cope with the high temperature and chemical corrosion environment in the automobile engine compartment. In addition, due to the high operating accuracy requirements of automobile controllers, rubber O-rings also need to have excellent physical and mechanical properties, such as wear resistance and tear resistance.

Application Areas

Automotive controller rubber O-ring is widely used in various types of automotive controllers, such as engine controllers, brake controllers, air conditioning controllers, etc. In these controllers, rubber O-rings are placed in grooves in the housing to prevent leakage of internal liquid or gas through their elasticity and sealing properties. At the same time, due to its high temperature resistance, oil resistance, corrosion resistance and other characteristics, it can also cope with various harsh working environments.

Quality Inspection

In order to ensure the quality and stability of automotive controller rubber O-ring, strict quality testing is required. Commonly used quality inspection methods include: appearance inspection, dimensional inspection, pressure resistance inspection and aging inspection, etc.

1. Appearance inspection mainly checks the surface smoothness, color and impurities of the O-ring.

2. Dimensional inspection is to check whether the cross-sectional diameter and thickness of the O-ring meet the requirements.

3. Pressure resistance testing is to test the sealing performance of the O-ring under high pressure.

4. Aging testing is to place the O-ring in a high temperature and high humidity environment to test its performance changes. Through these detection methods, the quality and stability of O-rings can be effectively controlled.

Manufacturing Process

1. Raw material preparation: Select suitable rubber materials, such as nitrile rubber (NBR), fluorine rubber (FKM), silicone rubber (VMQ), etc.

2. Mixing: Mix rubber raw materials with additives, and through mixing, tableting and other processes, the rubber will have the required properties, such as elasticity, oil resistance, high temperature resistance, etc.

3. Pressing prefabricated parts: The mixed rubber is pressed into prefabricated parts through tablet presses and other equipment, usually rubber plates or rubber strips.

4. Make the mold: Make the corresponding mold according to the size and shape of the automotive controller rubber O-ring. The mold can be a metal mold or a rubber mold, used to mold rubber.

5. Forming: Put the preform into the mold and form it. During the molding process, rubber fills the cavities of the mold, forming a rubber blank of a specific size and shape.

6. Vulcanization: Put the formed rubber blank into a vulcanization furnace for vulcanization treatment. Vulcanization is to heat the rubber blank to cause cross-linking at a certain temperature, thereby improving the strength and durability of the rubber.

7. Cutting and shaping: The vulcanized rubber blank will become a strong sealing ring blank, which is then cut into rubber O-rings with specific diameter and thickness through cutting and shaping processes.

8. Surface treatment: Surface treatment is performed on the finished sealing ring, such as coating with lubricant, to improve the convenience of installation and use.

9. Quality inspection: Conduct quality inspection on the produced sealing rings, including size, hardness, oil resistance, high temperature resistance and other performance tests to ensure that they meet the expected requirements.

10. Packaging and leaving the factory: After passing the inspection, qualified sealing rings are packaged, usually in plastic bags, cartons and other packaging methods, and then shipped out of the factory for sale or use.

During the production process, every link needs to be strictly controlled to ensure that the quality and performance of the final product meet the design requirements.