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Hydraulic brake hose with high antifatigue and production method

A hydraulic braking and fatigue technology, applied in the direction of hoses, pipes, tubular objects, etc., can solve problems such as unsatisfactory, short service life, and affecting the anti-fatigue of the rubber layer

Active Publication Date: 2007-07-18
QINGDAO SUNSONG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Existing hydraulic brake hoses generally use EPDM rubber, styrene-butadiene rubber, nitrile, EPDM rubber, and chloroprene rubber as the main raw materials for the rubber layer, supplemented by carbon black, accelerators, and other materials. It is produced by mixing and extruding auxiliary agents, but the ratio of main raw materials in mixing, and the ratio of accelerators, carbon black types and other auxiliary agents affect the fatigue resistance of the adhesive layer. Existing products are affected by the above-mentioned Influenced by factors and processing technology, the fatigue resistance often fails to meet the demand, and the service life is short, which cannot meet the needs of the growing automobile industry.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Embodiment 1: A hydraulic brake hose with high fatigue resistance, including 5 pipe layers from inside to outside, and five parts: inner rubber layer, braided layer, middle rubber layer, braided layer, and outer rubber layer.

[0051] The inner rubber layer is made of the following materials by weight:

[0052] EPDM 37%

[0053] Zinc Oxide 1.6%

[0054] Stearic acid 0.2%

[0055] Phenolic resin 0.5%

[0056] Carbon Black N550 19.5%

[0057] Carbon black N660 25.5%

[0058] Paraffin oil 14%

[0059] Vulcanizing agent S 0.2%

[0060] Accelerator CZ 0.3%

[0061] Accelerator TMTD 0.2%

[0062] Accelerator DTDM 0.6%

[0063] Accelerator PZ 0.3%

[0064] Anti-scorch agent 0.1%

[0065] The intermediate layer is made of raw materials with the following weight components:

[0066] Butadiene 31%

[0067] Nitrile 12%

[0068] Zinc Oxide 1.6%

[0069] Stearic acid 0.8%

[0070] Phenolic resin 0.6%

[0071] Carbon Black N550 28%

[0072] Carbon black N660 18.5% ...

Embodiment 2

[0097] Embodiment 2: A hydraulic brake hose with high fatigue resistance, including 5 pipe layers from inside to outside, and five parts: inner rubber layer, braided layer, middle rubber layer, braided layer, and outer rubber layer.

[0098] The inner rubber layer is made of the following materials by weight:

[0099] EPDM 44%

[0100] Zinc Oxide 1.9%

[0101] Stearic acid 0.3%

[0102] Phenolic resin 0.6%

[0103] Carbon Black N550 16%

[0104] Carbon Black N660 22%

[0105] Paraffin oil 12.6%

[0106] Vulcanizing agent S 0.3%

[0107] Accelerator CZ 0.6%

[0108] Accelerator TMTD 0.3%

[0109] Accelerator DTDM 0.8%

[0110] Accelerator PZ 0.4%

[0111] Anti-scorch agent 0.2%

[0112] The intermediate layer is made of raw materials with the following weight components:

[0113] Butadiene 34.5%

[0114] Nitrile 14.5%

[0115] Zinc Oxide 2.4%

[0116] Stearic Acid 1.4%

[0117] Phenolic resin 0.8%

[0118] Carbon Black N550 23%

[0119] Carbon Black N660 13% ...

Embodiment 3

[0144] Embodiment 3: A hydraulic brake hose with high fatigue resistance, including 5 pipe layers from inside to outside, and five parts: inner rubber layer, braided layer, middle rubber layer, braided layer, and outer rubber layer.

[0145] The inner rubber layer is made of the following materials by weight:

[0146] EPDM 41%

[0147] Zinc Oxide 1.8%

[0148] Stearic acid 0.3%

[0149] Phenolic resin 0.55%

[0150] Carbon Black N550 18%

[0151]Carbon Black N660 23%

[0152] Paraffin oil 13%

[0153] Vulcanizing agent S 0.25%

[0154] Accelerator CZ 0.5%

[0155] Accelerator TMTD 0.3%

[0156] Accelerator DTDM 0.7%

[0157] Accelerator PZ 0.35%

[0158] Anti-scorch agent 0.25%

[0159] The intermediate layer is made of raw materials with the following weight components:

[0160] Butadiene 33%

[0161] Nitrile 13%

[0162] Zinc Oxide 2.1%

[0163] Stearic acid 1.1%

[0164] Phenolic resin 0.8%

[0165] Carbon Black N550 25%

[0166] Carbon Black N660 16%

[...

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PUM

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Abstract

The invention discloses a high fatigue resistance hydraulic brake hose and the producing method thereof, playing the role of transferring brake pressure to drive arrester to make vehicle braking in automobile system, and comprising inner rubber layer, weaving layer, medium rubber layer, weaving layer, and outer rubber layer, where the inner, medium and outer rubber layers are made from EPDM rubber, butyl benzene and butyl EPDM rubber, and neoprene as main raw materials, respectively, and its producing method includes mixing, extruding, weaving, weaving, extruding, removing core after sulfuration and obtaining finished product. And it has characters of peculiar formula of raw materials, easy operation, excellent fatigue resistance, long service life and good use effect.

Description

Technical field: [0001] The invention discloses that the invention relates to a rubber hose for transmitting pressure in automobiles and motorcycles. Specifically, it is a hydraulic brake hose with high fatigue resistance and its production method. Background technique: [0002] Existing hydraulic brake hoses generally use EPDM rubber, styrene-butadiene rubber, nitrile, EPDM rubber, and neoprene as the main raw materials for the rubber layer, supplemented by carbon black, accelerators, and other materials. It is made by mixing and extruding auxiliary agents, but the ratio of main raw materials in mixing, and the ratio of accelerators, carbon black types and other auxiliary agents affect the anti-fatigue of the adhesive layer. The existing products are affected by the above-mentioned Due to the influence of various factors and processing technology, the fatigue resistance often fails to meet the demand, and the service life is short, which cannot meet the needs of the growin...

Claims

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Application Information

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IPC IPC(8): F16L11/08C08L23/16C08K5/09B29D23/00B29K105/06
Inventor 韩同登李锴侯海军穆广德张庆保
Owner QINGDAO SUNSONG CO LTD
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