Automobile hydraulic-braking hose and manufacturing method thereof

A brake hose, automobile technology, applied in the direction of hose, pipe, pipeline protection, etc., can solve problems such as low expansion system

Inactive Publication Date: 2016-07-13
NANJING ORIENTLEADER TECH 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 to overcome the problems existing in the existing hydraulic brake hoses and provide a high and low temperature resistance, fatigue resistance, dynamic pulse resistance, dynamic ozone resistance, weather aging resistance, low expansion coefficient, rubber hose that meets high standards. High-grade automotive fluid brake hoses with technical performance requirements such as adhesion, assembly tensile strength and burst strength

Method used

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  • Automobile hydraulic-braking hose and manufacturing method thereof

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Effect test

Embodiment 1

[0024] Such as figure 1 As shown, an automobile fluid brake hose, which includes a rubber hose with a multi-layer composite structure, and the rubber hose includes an inner layer of rubber 1, a first braided layer 2, an isolation layer 3, a second Braiding layer 4, adhesive layer 5 and outer layer rubber 6, wherein the inner rubber layer 1 is braided with the first braided layer 2, the first braided layer 2 is added with an isolation layer 3, and the second braided layer 4 is braided with the isolation layer 3 , the second weaving layer 4 plus an adhesive layer 5, and an outer layer of rubber 6 is extruded outside the adhesive layer 5.

[0025] In this embodiment, the material of the inner layer rubber 1 is EPDM rubber, the material of the outer layer rubber 6 is EPDM rubber, and the adhesive layer 5 is EPDM rubber plus isocyanate adhesive glue Coating, the material of the isolation layer 3 between the first weaving layer 2 and the second weaving layer 4 is natural rubber or ...

Embodiment 2

[0027] On the basis of Embodiment 1, the polyester thread or vinylon thread used in the braiding structure of the first braiding layer 2 is 3 strands, the number of braiding layer spindles is 20 spindles, the braiding outer diameter is 5.8mm, and the braiding lead is 12mm. The braiding structure of the second braiding layer 2 uses 3 polyester threads or vinylon threads, 20 braiding layer spindles, a braiding outer diameter of 7.0 mm, and a braiding lead of 14 mm. The structure enables the brake hose to expand from 6.9MPacm 3 / m down to 0.30cm 3 / m, fatigue from ≥35h to ≥150h, tensile strength from >1500N to >2200N, pulse from 50,000 to 150,000.

Embodiment 3

[0029] On the basis of Embodiment 1, the polyester thread or vinylon thread used in the braiding structure of the first braiding layer 2 is 3 strands, the number of braiding layer spindles is 20 spindles, the braiding outer diameter is 6mm, and the braiding lead is 13mm . The braiding structure of the second braiding layer 2 uses 3 polyester threads or vinylon threads, 20 braiding layer spindles, a braiding outer diameter of 7.5 mm, and a braiding lead of 15 mm. The structure enables the brake hose to expand from 6.9MPacm 3 / m down to 0.30cm 3 / m, fatigue from ≥35h to ≥150h, tensile strength from >1500N to >2200N, pulse from 50,000 to 150,000.

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Abstract

The invention discloses an automobile hydraulic-braking hose and a manufacturing method thereof. The automobile hydraulic-braking hose comprises a rubber hose body of a multi-layer composite structure, the rubber hose body comprises an inner rubber layer, a first braided layer, an insulating layer, a second braided layer, a bonding layer and an outer rubber layer sequentially from inside to outside, wherein the first braided layer is arranged outside the inner rubber layer, the insulating layer is added outside the first braided layer, the second braided layer is arranged outside the insulating layer, the bonding layer is added outside the second braided layer, and the outer rubber layer is extruded outside the bonding layer. The properties, such as expansion, fatigue, tensile strength and pulse, of the automobile hydraulic-braking hose are optimized, resistant high temperature is increased from 100 DEG C to 120 DEG C, resistant low temperature is decreased from -45 DEG C to -57 DEG C, resistant ozone is increased from 50 ppm to 200 ppm, and adhesive force between the outer rubber layer and the second braided layer is increased from 5 N/cm to 15 N/cm.

Description

technical field [0001] The invention relates to a key component used in automobiles, in particular to an automobile fluid brake hose and a manufacturing method thereof, belonging to the technical field of high-performance composite materials. Background technique [0002] At present, the structure of domestic automobile brake hose is usually composed of braided layer and rubber layer. The braided layer is made of polyester thread and strong silk thread. The inner layer of rubber is made of nitrile rubber, natural rubber and styrene-butadiene rubber. The outer layer of rubber Made of neoprene. Although this structure can meet the technical standard requirements of GB16897-2010, it has lower requirements for high temperature resistance, fatigue resistance, assembly tensile strength, burst strength and pulse. The domestic production of the United States, Europe, Japan, and the world's major automobile companies have adopted new standards for automobile brake hoses. The new sta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L11/12F16L59/02F16L57/00
CPCF16L11/12F16L57/00F16L59/02
Inventor 孙克俭邹惠芳
Owner NANJING ORIENTLEADER TECH CO LTD
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