Metal Bellows Seals
|
Color |
customizable |
| Speed |
≤ 23m/Sec |
|
Overall Dimensions |
Standard size |
| Temperature |
-20°C~200°C |
|
Applicable media |
Oil, organic solvents, alkali, ammonia, and other clean or particle-containing fluids |
Introduction
Metal bellows seals have a wide range of applications, from low temperature to high temperature, from neutral media to corrosive media, from low speed to high speed, and from ordinary to harsh working conditions.
The seal adopts an O-type sealing ring, which has good elasticity and sealing properties, and has the properties of non-stick, non-dissolving, non-aging, high-temperature resistance and low-temperature resistance.
Metal bellows seals can be used as vacuum seals for vacuum switches, valves as sealing isolation components, etc. Its materials are mainly nitrile rubber, fluorine rubber, etc.
The manufacturing process of metal bellows
Hydroforming is the most widely used and common forming method for metal bellows. It is mainly used to make ring-shaped corrugated pipes and can form corrugated pipes with a wall thickness of 0.08~4mm. Bellows hydroforming is when the pipe blank is under the pressure of the liquid on the inner wall and the stress exceeds the yield strength, it is formed into a corrugated pipe in a special mold.
Generally speaking, mechanical forming has the advantages of a simple process, easy tooling manufacturing, and high production efficiency. At the same time, there are also shortcomings such as relatively rough product manufacturing and low performance. It is mostly used in the manufacture of spiral corrugated pipes, corrugated expansion joints, and large-diameter thick-walled corrugated pipes.
The rubber-forming process is a type of bulging process. It uses rubber as a forming punch. The rubber-like punch deforms under pressure, and the tube blank is pressed into the concave mold cavity to form a bellows. The forming method is usually single-wave continuous forming.
Mechanical hydroforming is a forming method in which the tube blank is first rolled inward by the rolling method and then expanded outward by the hydraulic method to form a corrugated pipe. The bellows formed by mechanical hydroforming are strengthened because the wave peaks and troughs are deformed, which plays a good role in improving the elasticity of the bellows.
Hot Tags: metal bellows seals, China metal bellows seals manufacturers, suppliers, factory, Internal Combustion Engine Seals, Metal Bonded Rubber Seals
