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A method for preventing viton o-ring from sticking during secondary vulcanization

A secondary vulcanization and O-ring technology, which is applied to the surface coating liquid device, pretreatment surface, coating, etc., can solve problems such as sticking, achieve good consistency of installation torque, simple operation, and reduce The effect of missed detection risk

Inactive Publication Date: 2018-01-05
南京金三力橡塑有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention aims at the problem of stickiness after the secondary vulcanization of the fluororubber O-ring due to the extrusion between the O-rings and the volatilization of small molecular substances in the material when the fluororubber O-ring is secondary vulcanized at high temperature
Provides a method for preventing fluorine rubber O-rings from sticking during secondary vulcanization. This method reasonably applies the coating of emulsified silicone oil, drying machine and curing process, and solves the problem of fluorine rubber O-rings after secondary vulcanization. The purpose of the sticking phenomenon is to improve the inspection efficiency of O-rings and reduce the risk of missed inspections

Method used

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  • A method for preventing viton o-ring from sticking during secondary vulcanization

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Experimental program
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Effect test

Embodiment 1

[0034] A method for preventing the viton O-ring from sticking during secondary vulcanization of the present embodiment, the steps are:

[0035] A. Cleaning: Add 10,000 pieces of fluorine rubber O-rings to a 20L drum cleaning machine. The specifications of the O-rings are: outer diameter 17.9mm, wire diameter 1.6mm; add 20 grams of industrial detergent to the drum; rotate the drum to clean After 9 minutes, drain the cleaning solution and rinse it again with clean water; dry the cleaned product at 90°C for 5 minutes;

[0036] B. Feeding: Put the cleaned and dried O-ring into a 25L tumble dryer, and lay the product flat by hand;

[0037] C. Spray release agent: Spray the diluted emulsified silicone oil on the surface of the O-ring with a watering can with a scale. The spray amount of the emulsified silicone oil is 7ml; during the spraying process, ensure that the emulsified silicone oil sprayed from the watering can becomes mist (the grade of silicone oil is selected as IE349, t...

Embodiment 2

[0044] A method for preventing the viton O-ring from sticking during secondary vulcanization of the present embodiment, the steps are:

[0045] A. Cleaning: Add 12,000 pieces of fluorine rubber O-rings to a 20L drum cleaning machine. The specifications of the O-rings are: outer diameter 13.5mm, wire diameter 1.8mm; add 25 grams of industrial detergent to the drum; rotate the drum to clean After 8 minutes, drain the cleaning solution and rinse it again with clean water; dry the cleaned product at 80°C for 6 minutes;

[0046] B. Feeding: put the cleaned and dried O-ring into a 25L tumble dryer, and pave the product by hand;

[0047] C. Spray release agent: Spray the diluted emulsified silicone oil on the surface of the O-ring with a watering can with a scale. The spraying amount of the emulsified silicone oil is 8ml; during the spraying process, ensure that the emulsified silicone oil sprayed from the watering can becomes mist (the grade of silicone oil is selected as IE349, the ...

Embodiment 3

[0054] A method for preventing the viton O-ring from sticking during secondary vulcanization of the present embodiment, the steps are:

[0055] A. Cleaning: Add 12,000 pieces of fluorine rubber O-rings to a 20L drum cleaning machine. The specifications of the O-rings are: outer diameter 15.5mm, wire diameter 1.7mm; add 25 grams of industrial detergent to the drum; rotate the drum to clean After 10 minutes, drain the cleaning solution and rinse it again with clean water; dry the cleaned product at 100°C for 5 minutes;

[0056] B. Feeding: put the cleaned and dried O-ring into a 25L tumble dryer, and pave the product by hand;

[0057] C. Spray release agent: Spray the diluted emulsified silicone oil on the surface of the O-ring with a watering can with a scale. The spraying amount of the emulsified silicone oil is 6ml; during the spraying process, ensure that the emulsified silicone oil sprayed from the watering can becomes mist (the grade of silicone oil is selected as IE349, ...

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Abstract

The invention discloses a method for preventing fluorine rubber O-rings from sticking during secondary vulcanization, and belongs to the field of surface treatment of rubber products. A method for preventing fluorine rubber O-rings from sticking during secondary vulcanization of the present invention, through the steps of cleaning→feeding→spraying release agent→coating, drying→curing, and secondary vulcanization, the coating of emulsified silicone oil is reasonably applied , drying machine and curing process, to achieve the purpose of solving the sticking phenomenon of fluorine rubber O-rings after secondary vulcanization, so as to improve the inspection efficiency of O-rings and reduce the risk of missing inspections. The surface of the fluorine rubber O-ring after secondary vulcanization by the method of the invention has no sticking phenomenon, which greatly improves the inspection efficiency.

Description

technical field [0001] The invention relates to the technical field of surface treatment of rubber products, in particular to a method for preventing viton O-rings from sticking during secondary vulcanization. Background technique [0002] With the development of industry, fluorine rubber O-rings are widely used in automobiles, electronics, aerospace, ships and other working environments with relatively high precision requirements, high temperature resistance, high wear resistance, and harsh conditions. With the advancement of technology, fluorine rubber O-rings are also constantly improving and innovating, and the development of fluorine rubber O-rings must be: products with larger (universal platform) or smaller (high-efficiency sealing) size structures Design requirements. [0003] On the premise of ensuring the internal material of the fluorine rubber O-ring, the appearance and assembly requirements of the fluorine rubber O-ring are becoming more and more important. Co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J7/04B05D3/02
Inventor 徐海潮何志刚
Owner 南京金三力橡塑有限公司
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