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Automobile composite pipe provided with fluorine-containing outer layer and silicon-containing inner layer

A composite pipe, automobile technology, applied in the direction of hose, pipe, pipe/pipe joint/pipe fitting, etc., can solve the problems of poor adhesion between the adhesive layer and the reinforcement layer, low production efficiency, uneven wall thickness, etc., to ensure The effect of wall thickness consistency and stability, prolonging service life, and reducing failure rate

Inactive Publication Date: 2017-05-10
QISHENG RUBBER & PLASTIC PROD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the fluorine-inner and outer-silicone tubes used in automobiles are generally produced by winding technology. The product has uneven wall thickness, unsightly surface, poor adhesion between the rubber layer and the reinforcement layer, and low production efficiency.

Method used

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  • Automobile composite pipe provided with fluorine-containing outer layer and silicon-containing inner layer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A fluorine-inner-silicon composite pipe for automobiles, comprising a fluorine-rubber inner layer 1, a reinforcement layer 2 and a silica gel outer layer 3, the inner wall of the automobile-use outer-fluorine-inner-silicon composite pipe is a fluorine rubber inner layer, and the reinforcement layer is coated The outer wall of the inner layer of fluorine rubber, the outer wall of the silicone rubber is covered on the outer wall of the reinforcement layer. In this structure, the inner layer of fluorine rubber is resistant to high temperature, has good air tightness and oil resistance, and can effectively prevent oil and water seepage from the hose.

Embodiment 2

[0027] Same as Example 1, the difference is that the inner layer of the fluororubber is fluororubber, and the fluororubber is vinylidene fluoride fluororubber. In this vinylidene fluoride fluororubber, relative to the The total amount of structural units is 100 mol%, containing 48 mol% to 88 mol% of structural units derived from vinylidene fluoride, and 0 mol% to 10 mol% of structural units derived from tetrafluoroethylene, relative to 100 parts by mass of fluororubber, containing 5 to 50 parts by mass of carbon black; the fluororubber composition contains a crosslinking agent. Using the fluororubber provided by the present invention can further improve the heat resistance, and the mechanical properties at high temperature are also better than other fluororubber molded products.

Embodiment 3

[0029] Same as Example 1, the difference is that the reinforcing layer is made of nano-silver fiber combined with glass fiber blend spinning, and is wound in the inner layer of fluorine rubber in a double helix structure. The reinforcing layer is bonded to the inner layer of fluorine rubber and the silica gel layer through an adhesive composed of triazine thiol and diene rubber in a laminated state. The reinforcing layer can effectively ensure the strength of the inner layer of fluorine rubber, and at the same time be resistant to high temperature and oxidation. The adhesive of the invention can effectively improve the adhesion between layers and avoid separation between layers.

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Abstract

The invention belongs to the field of automobile equipment accessories and particularly relates to an automobile composite pipe provided with a fluorine-containing outer layer and a silicon-containing inner layer. The automobile composite pipe provided with the fluorine-containing outer layer and the silicon-containing inner layer comprises an inner fluorine rubber layer, a reinforcing layer and an outer silica gel layer. The inner wall of the automobile composite pipe provided with the fluorine-containing outer layer and the silicon-containing inner layer is the inner fluorine rubber layer, the reinforcing layer is wrapped around the outer wall of the inner fluorine rubber layer, and the outer silica gel layer is wrapped around the outer wall of the reinforcing layer. According to the automobile composite pipe provided with the fluorine-containing outer layer and the silicon-containing inner layer, the fluorine rubber is resistant to high temperature, good in gas tightness, resistant to oil and capable of effectively protecting a rubber pipe against oil seepage and water seepage, the reliability of a gas inlet rubber pipe and a gas outlet rubber pipe for an automobile can be greatly improved, and the fault rate of the automobile during running can be lowered. The wall thickness consistency and stability of the product are guaranteed, and the adhesion performance between the silica gel layer and the reinforcing layer is improved. Due to the design of the reinforcing layer, the automobile composite pipe provided with the fluorine-containing outer layer and the silicon-containing inner layer has good physical and mechanical properties, oil resistance and acid-base corrosion resistance and can be applied to severe environments, and the service life of the rubber pipe is effectively prolonged.

Description

technical field [0001] The invention belongs to the field of automobile equipment accessories, and in particular relates to a flame-retardant and oil-resistant composite pipe with outer fluorine and inner silicon for automobiles. Background technique [0002] A turbocharger is actually an air compressor that compresses air to increase intake air. It uses the inertial momentum of the exhaust gas discharged from the engine to drive the turbine in the turbine chamber, and the turbine drives the coaxial impeller, which presses the air sent by the air filter pipe to pressurize it into the cylinder. When the engine speed increases, the exhaust gas discharge speed and the turbine speed also increase synchronously, and the impeller compresses more air into the cylinder. The pressure and density of the air increase to burn more fuel. Increase the amount of fuel and adjust the engine speed accordingly. The output power of the engine can be increased. [0003] After forced supercharg...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L11/08
CPCF16L11/085
Inventor 应仁标
Owner QISHENG RUBBER & PLASTIC PROD CO LTD
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