A low-temperature-resistant, low-pressure variable intake manifold gasket material and preparation method thereof

A technology of intake manifold and low-pressure change, applied in the field of rubber parts, can solve the problems of high price, poor processability and cold resistance of fluororubber, and achieve the effect of long-term use and reliable sealing
CN105086299BActive Publication Date: 2017-07-11ANHUI ZHONGDING SEALING PARTS
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ANHUI ZHONGDING SEALING PARTS
Publication Date
2017-07-11

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Abstract

The invention discloses a low-temperature-resistant low-compressive deformation seal gasket material for intake manifolds and a preparation method thereof. The material comprises, by weight, 60-70% of raw fluororubber, 5-15% of calcium silicate, 5-20% of diatomite, 3-15% of barium sulfate, 3-10% of polytetrafluoroethylene powder, 2-5% of cerium oxide, 2.4-4.5% of calcium hydroxide, 1.5-2.8% of magnesium oxide, 0.5-2% of lubricant, 0.6-1.4% of 2, 2-bis(4-hydroxyphenyl)hexafluoropropane, 0.3-0.7% of benzyl triphenyl phosphorus chloride, and 0.5-2% of auxiliary material. The low-temperature-resistant low-compressive deformation seal gasket material for intake manifolds and the preparation method thereof have the advantages that the preparation method is simple and easy to operate, the material has good processability, low compression set and excellent low temperature resistance, and an intake manifold seal gasket made of the material has good comprehensive properties and long service life.
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Description

technical field

[0001] The invention relates to the technical field of rubber parts, in particular to a low-temperature-resistant, low-pressure variable intake manifold sealing material and a preparation method thereof. Background technique

[0002] The engine is the core component of the "heart" of the car, and its performance directly affects the performance, life and personal safety of the car. The sealing of the connection between the intake manifold and the engine block is the premise to ensure the normal operation of the engine, so the sealing technology of the intake system is particularly important. In order to solve its sealing problem, it is necessary to install a rubber gasket between the intake manifold and the engine block. After the rubber gasket is compressed, it will generate a rebound force, and a certain sealing contact pressure will be generated in the required sealing area, thereby preventing The liquid or gas inside the intake manifold leaks outward, wh...

Claims

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