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Natural rubber seal ring manufacturing process

A technology of natural rubber and manufacturing process, which is applied in other chemical processes, chemical instruments and methods, etc., can solve the problems of unsatisfactory service life and safety, and achieve the effect of reasonable raw materials and formula, low cost and simple process

Inactive Publication Date: 2013-12-18
孙菊
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In recent years, with the rapid development of the domestic economy, there are more and more high-rise commercial and civil buildings, and the fire-fighting water pipelines of these high-rise buildings are also essential key safety facilities. The joints of these water pipelines are used The rubber sealing ring is the most important key component of the system. The commonly used sealing rings are: rubber sealing ring of assembled pipe joint, rubber sealing ring of pipe clamp of assembled pipe joint, rubber sealing ring of flange of assembled pipe joint, which are required to have Excellent medium resistance, tear resistance, tensile strength, good elongation, compression deformation resistance, heat aging resistance, long service life (at least 50 years), etc., and this kind of rubber sealing ring is currently used in China Unsatisfactory function, service life and safety

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] (1) Formed according to the following ratio of raw material components by weight: The manufacturing process of natural rubber sealing ring is characterized in that it is formed by the following ratio of raw material components by weight:

[0019] 110 parts of natural rubber, 5 parts of activated magnesium oxide, 6 parts of zinc oxide, 20 parts of reinforcing agent, 20 parts of inorganic filler, 2 parts of release agent, 2 parts of plasticizer, 2 parts of accelerator, 1 part of antioxidant, 3 parts of vulcanizing agent, 0.4 parts of co-curing agent.

[0020] (2) After the qualified synthetic rubber is kneaded and formed by the open mill, it is put into the mold in the vulcanization equipment, pressurized at 120-160Kgf / cm2, heated to 170-180°C, and the time is 240-360 One-stage vulcanization is performed in seconds, and then, the temperature of the prepared oven is raised to 170°C, and the first-stage vulcanized product is put into it for 2 hours, and the second-stage vul...

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PUM

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Abstract

The invention discloses a natural rubber seal ring manufacturing process. The natural rubber seal ring manufacturing process comprises the following steps of 1, carrying out blending according to a weight part ratio of a specified synthetic rubber technology formula, 2, carrying out vulcanization and post vulcanization, and 3, carrying out trimming.

Description

technical field [0001] The invention relates to a manufacturing process of a natural rubber sealing ring. Background technique [0002] In recent years, with the rapid development of the domestic economy, there are more and more high-rise commercial and civil buildings, and the fire-fighting water pipelines of these high-rise buildings are also essential key safety facilities. The joints of these water pipelines are used The rubber sealing ring is the most important key component of the system. The commonly used sealing rings are: rubber sealing ring of assembled pipe joint, rubber sealing ring of pipe clamp of assembled pipe joint, rubber sealing ring of flange of assembled pipe joint, which are required to have Excellent medium resistance, tear resistance, tensile strength, good elongation, compression deformation resistance, heat aging resistance, long service life (at least 50 years), etc., and this kind of rubber sealing ring is currently used in China Function, servic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08K3/22C08K3/00B29C35/02C09K3/10
Inventor 孙菊
Owner 孙菊
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