Composite oil gas tube of fluororubber and ethylene acrylate rubber and method of preparing the same

A technology of acrylate and fluororubber, applied in the direction of hoses, pipes, mechanical equipment, etc., can solve the problems of low efficiency and high cost, and achieve the effects of increasing production efficiency, improving oil resistance and prolonging service life

Active Publication Date: 2008-01-23
TIANJIN PENGYI GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is mainly to solve the problems of high cost and low efficiency of existing low-pressure fuel hoses on the premise of meeting the requirements of high temperature resistance and heat resistance oil

Method used

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  • Composite oil gas tube of fluororubber and ethylene acrylate rubber and method of preparing the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] To produce a fluorine rubber and acrylic rubber composite oil-gas hose with an inner diameter of 7.5±0.3mm×3.5±0.5mm×400±3mm as shown in Figure 1, the steps are as shown in Figure 2:

[0017] 1) Tube embryo manufacturing process

[0018] Extrude inner rubber and outer rubber: Extrude the fluorine rubber as the inner rubber and the ethylene acrylate as the outer rubber on the dual compound extruder at the same time, set the extrusion temperature of the inner rubber fluorine rubber to 60 ° C, 50 ° C, 50 °C, the extrusion temperature of the outer rubber acrylate rubber is 80 °C, 70 °C, 60 °C, 50 °C.

[0019] 2) Vulcanization:

[0020] Carry out primary vulcanization in the vulcanization tank, the first stage vulcanization parameters: temperature is 170°C, time is 20min, and then carry out secondary vulcanization molding in the oven, second stage vulcanization parameters: temperature is 175°C, time is 1h.

[0021] The following table is the test of rubber hose according t...

Embodiment 2

[0024] To produce a fluorine rubber and acrylic rubber composite oil-gas hose with an inner diameter of 15±0.3mm×4±0.5mm×400±3mm, the method steps are as shown in Example 1, the difference is:

[0025] Set the extrusion temperature of the inner rubber fluorine rubber to 80°C, 70°C, 70°C, and the extrusion temperature of the outer rubber acrylate rubber to 100°C, 90°C, 70°C, 60°C.

[0026] Parameters of one-stage vulcanization: temperature is 180°C, time is 10min; parameters of second-stage vulcanization: temperature is 200°C, time is 1h.

[0027] The following table is the test of rubber hose according to the standard requirements of German Volkswagen, and the following conclusions are drawn.

[0028] serial number

Embodiment 3

[0030] To produce a fluorine rubber and acrylic rubber composite oil-gas hose with an inner diameter of 5±0.3mm×3±0.5mm×400±3mm, the method steps are as shown in Example 1, the difference is:

[0031] Set the extrusion temperature of the inner rubber fluorine rubber to 50°C, 40°C, and 40°C, and the extrusion temperature of the outer rubber acrylate rubber to 60°C, 40°C, 40°C, and 40°C.

[0032] Parameters of one-stage vulcanization: temperature is 130°C, time is 60min; parameters of second-stage vulcanization: temperature is 150°C, time is 4h.

[0033] The following table is the test of rubber hose according to the standard requirements of German Volkswagen, and the following conclusions are drawn.

[0034] serial number

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Abstract

The invention discloses a turbine super-charging rubber pipe for automobiles comprising an inner layer (1) of fluorubber and an outer layer (2) of propenoic acid ester rubber and produced by double compound extrusion. The rubber pipe is of a double compound structure, and advanced double compound extrusion is used so that the rubber pipe is formed once; the productivity is improved. And by research development in the formula and process of the rubber, the adhesion between the fluorubber and the propenoic acid ester rubber meets applicable standard, this further improves the resistance to oil, high temperature and seepage of the rubber pipe, and prolongs the service life of the rubber pipe.

Description

technical field [0001] The invention relates to the technical field of rubber hoses for automobiles, in particular to a composite oil-gas hose made of fluorine rubber and ethylene acrylate rubber and a preparation method thereof. Background technique [0002] With the development of the automobile industry and the enhancement of environmental awareness, the current fuel hose is required to withstand high temperatures of 150~300°C, and has very high requirements for oil permeability, and the requirement for ozone resistance has also been increased from the original 50pphm to 200pphm. The existing patent number It is a patent of 200520026323.4, which proposes a fuel hose with a four-layer structure. From the inside to the outside, it is: fluorine rubber layer, acrylic rubber layer, aramid fiber layer, acrylic rubber layer, but for oil and gas pipes that require lower pressure Generally speaking, it is a waste to still use a four-layer structure, and the cost is relatively high...

Claims

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Application Information

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IPC IPC(8): F16L11/04B29C47/92B29C47/06B29C47/20B29C35/02B29C48/32B29C48/92
Inventor 张洪起孙佩祝李风海薛俊芳
Owner TIANJIN PENGYI GRP CO LTD
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