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Low-extraction hydraulic braking pipe

A technology of hydraulic braking and inner rubber layer, which is applied in the layout of pipelines, layered products, rubber layered products, etc., can solve the problem that the brake pipe cannot meet higher requirements.

Active Publication Date: 2014-11-05
QINGDAO SUNSONG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the fact that the current brake pipe cannot meet higher requirements, the present invention proposes a low-drawing hydraulic brake pipe with better performance and able to meet higher requirements

Method used

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  • Low-extraction hydraulic braking pipe

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Tube, middle and cover are made from the following ingredients by weight:

[0013]

[0014] The performance of the low extraction hydraulic brake pipe made of the above components was tested, and the experimental data are shown in the table below.

[0015]

Embodiment 2

[0017] Tube, middle and cover are made from the following ingredients by weight:

[0018]

[0019] The performance of the low extraction hydraulic brake pipe made of the above components was tested, and the experimental data are shown in the table below.

[0020]

Embodiment 3

[0022] Tube, middle and cover are made from the following ingredients by weight:

[0023]

[0024] The performance of the low extraction hydraulic brake pipe made of the above components was tested, and the experimental data are shown in the table below.

[0025]

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Abstract

The invention relates to a low-extraction hydraulic braking pipe. The low-extraction hydraulic braking pipe is of a multi-layer structure and sequentially comprises an inner glue layer, a first vinylon enhanced layer, a middle glue layer, a second vinylon enhanced layer and an outer glue layer from inside to outside, wherein the inner glue layer, the middle glue layer and the outer glue layer are all prepared from ethylene-propylene-diene monomer rubber, zinc oxide, stearic acid, carbon black, a sulphur cross-linking agent, a TMTD cross-linking agent, peroxide, polyethylene and liquid ethylene-propylene-diene monomer. The low-extraction hydraulic braking pipe can meet the requirements in new standard, can resist brake fluid for 1000h at 120 DEG C, and has the positive weight change value and the non-extractable effect. According to the low-extraction hydraulic braking pipe, the tensile strength change rate is less than or equal to 10%, the elongation change rate is less than or equal to 25%, the hardness change rate is up to -7tol, and the weight change is 1-5%.

Description

technical field [0001] The present invention relates to a rubber hose, and more particularly, to a low drawout hydraulic brake hose. Background technique [0002] The hydraulic brake hose is a component of the automobile brake system, which belongs to the automobile safety parts. It is a national 3C compulsory inspection product. With the development of the automobile industry and the enhancement of environmental protection and safety awareness, the performance of the original hydraulic brake hose can no longer meet the ever-changing automobile. At present, high-end automobile manufacturers, such as Volkswagen and SAIC Motor, have put forward more stringent requirements for brake hoses, including: (1) The inner rubber layer of the rubber hose has better corrosion resistance to brake fluid, that is, the quality change rate Change the original negative value to a positive value to avoid the reduction of the braking effect due to the reduction of the thickness of the rubber mat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B1/08B32B25/04B32B25/10B32B25/14C08L23/16C08K13/02C08K3/22C08K5/09C08K3/04B60T17/04
Inventor 黄英李垂祥朱德华王贝贝刘杰李凯
Owner QINGDAO SUNSONG CO LTD
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