Rubber sealed and shock-reducing sound-absorbent material coated on metal sheet and method for preparing same

Abstract

The present invention is sealing, damping and silencing material comprising metal sheet and coating. The coating consists of rubber, stuffing and compound ingredient. The compound ingredient includes sulfur, zinc oxide, stabilizer, etc.; the rubber is one or two selected from fluororubber, NBR, SBR, etc.; and the stuffing may be graphite, carbon black, kaolin, etc. The sealing, damping and silencing material may be machined into sealing washer in required shape, can resist the corrosion of various gas and liquid medium, operate in the temperature up to 400 deg.c and pressure up to 120 kg / sq cm, and possesses reliable sealing.

Description

Technical field

[0001] The invention relates to a "rubber-metal" material, in particular to a sealing, shock-absorbing and sound-absorbing material coated with rubber on a metal sheet and a preparation method thereof. Background technique

[0002] Various seals or gaskets are widely used in power machinery such as engines and refrigerators, fluid control and driving devices such as pumps and valves, and petrochemical equipment. Because these sealing materials are installed in different working environments and occasions, they must have the required mechanical, physical, chemical and other comprehensive properties to ensure the reliability and long service life of the seal. For example, mechanical parts need to work under oil resistance, acid resistance, alkali resistance, high temperature resistance, high pressure resistance or low temperature resistance. The sealing material should adapt to the above working environment and maintain good mechanical performance and safe and relia...

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