JB982-77 Combined metal-bonded sealing Washers specifications and standards

From the point of view of the function and scope of use of the combination  metal-bonded sealing washers, it can be divided into the following aspects:

1. Prevent leakage: Combination metal-bonded sealing washers can ensure no leakage at the sealing interface.

2. Reduced resistance: Combination metal-bonded sealing washers do not increase the machine's working resistance, but some can even reduce it to improve efficiency.

3. Withstand high pressures: Combination seals can withstand high pressures, allowing the machine to operate smoothly under high-pressure conditions.

4. Prevents wear and tear: The combination metal-bonded sealing washers prevent wear and tear at the sealing interface during the operation of the machine, thus ensuring long-term stable operation.

According to the function of the combination metal-bonded sealing washers, we can categorize them into the following two types:

1. Static seals: Combination metal-bonded sealing washers are used for sealing fixed parts that do not change in a loose state. They are mainly used to prevent the leakage of liquids or gases from the sealing interfaces of machines.

2. Dynamic sealing: Combined metal-bonded sealing washers are used for parts that can rotate and move dynamically, mainly to prevent liquid or gas leakage when the machine turns.

Depending on the material properties of the combination metal-bonded sealing washers, we can categorize them into the following types:

1. Rubber seals: mainly some rubber products, which are widely used in machines, equipment, automobiles, agricultural machinery, ships, bridges, and so on.

2. Metal seals: Seals made of metal materials are mainly used in high-pressure, high-temperature, high-speed machines and equipment and extreme environments.

3. Plastic seals: Mainly made of polyvinyl chloride, Polytetrafluoroethylene, and other plastic materials

According to the specifications and standards of combination  metal-bonded sealing washers, the following standards are stipulated according to the functions and characteristics of combination seals:

1. Outer diameter: The outer diameter of the combination metal-bonded sealing washers' specifications is the distance between two sealing surfaces.

2. Inner Diameter: The inner diameter of a combination metal-bonded sealing washer specification is the radius of its circle.

3. Cross-section extension: The cross-section extension of a combined seal specification is the extension of the seal body material in the cross-section, i.e., the thickness in the cross-section.

4. Compressive deformation: the compressive deformation of the combination seal specifications refers to the degree of elastic contraction of the sealing body under pressure.

5. Hardness: The hardness of a combination metal-bonded sealing washer specification refers to the hardness of the seal body material.

6. Tension: The tension of a combination seal specification refers to the torque that the sealing body material is subjected to when a shear force is placed outside the combination seal.

7. Durability: The durability of the combination metal-bonded sealing washer specifications refers to the sealing body used on the sealing surface, which must be at a specific temperature to withstand a certain pressure and vibration time.

Different combination seal specifications and standards will vary depending on the machine, equipment, field, and condition. Therefore, when selecting the combination seal, it is necessary to consider its material, specification, and standard to achieve a coordinated and reasonable purpose.

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