How To Calculate The Dimensional Tolerance Of Rubber Seal?

2020-03-23 14:37:16

High elastic polymer compound. It is divided into natural rubber and synthetic rubber. Natural rubber is made by extracting gum from rubber trees, rubber grasses and other plants; synthetic rubber is obtained by polymerization of various monomers. Rubber products are widely used in all aspects of industry or life.

Rubber Seal is a common basic component in the sealing device, which plays a very important role in the contradiction between leakage and sealing. Solve the leakage and sealing of human conquest of nature. This is an important way to promote technological progress and prevent and reduce environmental pollution. Rubber seal is a kind of rubber product widely used in sealing technology. Because rubber has a valuable elastic polymer material and a wide temperature range, smaller deformation in different media will produce larger deformation. This kind of deformation can provide contact pressure, compensate leakage gap and achieve the purpose of sealing.

When using Rubber Seals, we may notice that the product has dimensional tolerance. So, how to calculate the dimension tolerance?

Rubber seals have a high tolerance class and should only be used when required in the application. They should be limited to dimensions considered critical. The higher the accuracy used, the more stringent all the controls that must be performed in the manufacturing process, and therefore the higher the cost. When products require certain special properties, the use of compounds that can be molded with tight tolerances may not always provide these properties. In this case, the parties concerned should consult. In general, lower hardness vulcanizates require a greater tolerance than higher hardness vulcanizates. The dimensional tolerance levels and tolerance values are specified for compact rubber products compacted, extruded and rolled, and the corresponding test methods required to determine compliance with the standards are also specified. This standard does not apply to calendered composite products, such as precision ring seals or tapes, or products coated with rubber by silicone method.