Tungsten Carbide Type O Seals

Introduction

Tungsten carbide type O seals is a kind of seals with circular cross section. Mainly used for mechanical components to prevent leakage of liquid and gaseous media under static conditions. In some cases, tungsten carbide type O seals can be used as dynamic sealing element axially reciprocating motion and low-speed rotational movement.

Application

Tungsten carbide type O seals is widely used in kinds of machines, which is for sealing at predetermined temperature, pressure, various liquid and gaseous media, at rest or in motion state. As a seal element on machine tools, ships, automobiles, aerospace equipment, metallurgical machinery, chemical machinery, engineering machinery, construction machinery, mining machinery, petroleum machinery, plastics machinery, agricultural machinery, and a variety of instruments. Seals is mainly used for static and reciprocating seals. When the seals for rotary motion, it is only as sealing device of low-speed rotary. Tungsten carbide type O seals is typically installed on the outer or inner circular cross-section from the seal rectangular groove.

Properties

Tungsten carbide type O seals with excellent sealing, damping effect in the oil, acid, wear, chemical attack and other environments. So the carbide seals is the most widely used as seal in hydraulic and pneumatic drive system. Tungsten carbide type O seals sealing action of its own, not a cyclical adjustment, can be used to seal against the direction of movement of the sliding seal impact, small size at the same time easy to use, because of the large seal adaptability, so a very wide range of applications. But the pressure reaches a certain peak of easily deformed under pressure, there is the possibility to extrusion gap, with more application in terms of aviation and hydraulic engineering.

We'd better try to use a large cross-section of the O-ring. In the case of same space, the volume of carbide O-ring is extruded into the gap should be smaller than it is to squeeze the maximum allowable value. Different types of fixed seal or dynamic seal applications, carbide O-ring provides designers with an effective and economical sealing element. Carbide O-ring is a double-acting sealing element. Initial installation aspects radial or axial compression, giving O-ring seal its initial capacity. Sealing force generated by the pressure of the system and the total synthesis of the initial sealing force of the sealing force, with which to improve the system pressure increases. Carbide O-ring seal in the static case, display a prominent role. However, where appropriate dynamic, the cemented carbide O-rings are often used, but it is limited by the speed of seals and pressure.