Technology for producing new viton coating metal sealing gasket for internal combustion engine use

A metal sealing gasket and preparation process technology, which is applied to the sealing device of the engine, mechanical equipment, engine components, etc., can solve problems such as difficulty in popularization, complicated production process, and poor coating performance, so as to shorten production time, The coating has good leveling property and the effect of shortening the cycle

Inactive Publication Date: 2007-11-07
NANCHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Domestic fluorine rubber sealing products generally adopt compression molding, but for thin coatings (thickness 20-30μm) of sealing gaskets, only the rubber body can be made into coatings and then applied. At present, a few domestic research institutions such as Shanghai Sanai

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0007] Example 1: 100 parts of 26-type fluororubber raw rubber, 250 parts of mixed solvent, 25 parts of carbon black, 1.5 parts of KH-560 silane coupling agent, 30 parts of 3# vulcanizing agent, 5 parts of magnesium oxide, phenylmethyl poly 3 parts of siloxane resin and 3 parts of molybdenum disulfide. Preparation method: Weigh the above raw materials according to the formula to make fluororubber coating, then degrease the metal substrate by soaking in gasoline, and then polish it. Apply the fluorine rubber coating by means of silk screen printing, and then punch the coated plate to make a metal gasket of the fluorine rubber coating, or apply glue on the stamped plate.

Embodiment 2

[0008] Example 2: 100 parts of 26-type fluororubber raw rubber, 350 parts of mixed solvent, 35 parts of carbon black, 3 parts of KH-560 silane coupling agent, 50 parts of 3# vulcanizing agent, 15 parts of magnesium oxide, phenylmethyl poly 7 parts of siloxane resin and 7 parts of molybdenum disulfide. Preparation method: Weigh the above raw materials according to the formula to make fluororubber coating, then degrease the metal substrate by soaking in gasoline, and then polish it. Apply the fluorine rubber coating by means of silk screen printing, and then punch the coated plate to make a metal gasket of the fluorine rubber coating, or apply glue on the stamped plate.

Embodiment 3

[0009] Example 3: 100 parts of 26-type fluororubber raw rubber, 300 parts of mixed solvent, 30 parts of carbon black, 2.5 parts of KH-560 silane coupling agent, 40 parts of 3# vulcanizing agent, 10 parts of magnesium oxide, phenylmethyl poly 5 parts of siloxane resin and 5 parts of molybdenum disulfide. Preparation method: Weigh the above raw materials according to the formula to make fluororubber coating, then degrease the metal substrate by soaking in gasoline, and then polish it. Apply the fluorine rubber coating by means of silk screen printing, and then punch the coated plate to make a metal gasket of the fluorine rubber coating, or apply glue on the stamped plate.

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PUM

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Abstract

The preparation process of the metal sealing filling piece with the fluorine rubber coat used in gas engine is provided in invention. The coat is made up of the 100 parts of the 26 type fluorine raw rubber, 250-350 parts of the mixing solvent, the 25-35 parts of the carbon black, 1.5-3 parts of the KH-560 silane resin acceptor, 30-50 parts of the 3# vulcanized agent, 5-15 parts of the MgO, 3-7 parts of the phenyl-methyl polysiloxane resin and 3-7 parts of Supramoly. The advantage of the invention is: (1) the process batch formula is proper and the dope has good flow level; (2) it needn't the bottom coating; (3) it can use the flame plating or screen printing process to operate on the fluorine rubber.

Description

technical field [0001] The invention relates to a preparation process of a novel fluororubber-coated metal sealing gasket for an internal combustion engine. Background technique [0002] Domestic fluorine rubber sealing products generally adopt compression molding, but for thin coatings (thickness 20-30μm) of sealing gaskets, only the rubber body can be made into coatings and then applied. At present, a few domestic research institutions such as Shanghai Sanai Fufu and Sichuan Chenguang have made some progress in this field, but there are still problems such as poor performance of the coating and complicated production process, which makes the products produced still have a large gap with imported products, and it is difficult to be popularized. Contents of the invention [0003] The purpose of the present invention is to provide a preparation process of a novel fluororubber-coated metal sealing gasket for internal combustion...

Claims

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Application Information

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IPC IPC(8): F02F11/00
Inventor 邱祖民张迎军刘杰张玉英
Owner NANCHANG UNIV
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