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A kind of hydraulic hose and its preparation method

A hydraulic hose and pipe body technology, which is applied in the direction of hoses, pipes, mechanical equipment, etc., can solve problems such as failure resistance of the inner rubber, pulse performance, and aging resistance of the outer rubber without considering the adhesiveness of the middle rubber, etc. Achieve the effect of simple preparation method

Active Publication Date: 2018-01-26
河南汇龙液压科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, "Temperature-resistant hydraulic rubber hose" (Chinese patent CN103982715), although the preparation method is simple, only the temperature resistance of the inner rubber is considered, and the fatigue resistance and pulse performance of the inner rubber are not considered, and it is well assembled with metal joints. The sealing performance does not consider the adhesion of the middle rubber and the aging resistance of the outer rubber

Method used

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  • A kind of hydraulic hose and its preparation method
  • A kind of hydraulic hose and its preparation method
  • A kind of hydraulic hose and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] 1. The raw material composition of the inner rubber film of the inner rubber layer of the hydraulic hose is: raw rubber 100, vulcanization system 3.5-6, anti-scorch agent CTP0.5, nano-zinc oxide 6, high-activity magnesium oxide 3, adhesive 6.5-11 , Reinforcing agent 70, calcium fluoride 30, decaptyl 15, stearic acid 1. Experimentation is used to determine the raw material composition for optimum performance of the inner film.

[0039] 2. First, use the orthogonal table to design, and see Table 1 for the determined four factors and three levels.

[0040] Table 1 Four factors and three levels

[0041]

[0042] 3. Next, experiments were carried out based on the raw material components of the 9 inner rubber sheets. The production equipment for preparing the inner rubber layer film included a kneader, a Φ150 filter, and a 24-inch open mill. The specific method steps included:

[0043] a. Put the original rubber into the kneader and knead for 3 minutes;

[0044] b. Put ...

Embodiment 2

[0060] 1. The raw material composition of the medium rubber film in the rubber layer of the hydraulic hose is: 100 raw rubber, 4.5-5 vulcanization system, 6 nano-zinc oxide, 6.5-11 adhesive, 50 reinforcing agent, 30 sepiolite, and anti-aging agent 5. 15 octadecyl esters, 1 stearic acid, and 8 petroleum resins. Experimentation is used to determine the raw material composition of medium film for optimum performance.

[0061] 2. First, use the orthogonal table to design, and see Table 3 for the determined four factors and three levels.

[0062] Table 3 Four factors and three levels

[0063]

[0064] 3. Then, according to these 9 medium rubber film raw material components, the experiment is carried out, wherein the production equipment for preparing the medium rubber film includes a kneader, a Φ150 filter, a 24-inch open mill,

[0065] Concrete method steps include:

[0066] a. Put the original rubber into the kneader and knead for 3 minutes;

[0067] b. Add active agent, a...

Embodiment 3

[0080] 1. The raw material composition of the outer rubber film of the outer rubber layer of the hydraulic hose is: raw rubber 100, vulcanization system 3.5, nano-zinc oxide 8, high-activity magnesium oxide 4, adhesive 6.5-11, reinforcing agent 70, calcium fluoride 30, Antiaging agent 11, Decyl caprylate 20, Stearic acid 1. Experimentation is used to determine the raw material composition for optimum performance of the cover film.

[0081] 2. First, use the orthogonal table to design, and see Table 5 for the determined four factors and three levels.

[0082] Table 5 Four factors and three levels

[0083]

[0084] 3, then, carry out experiment according to these 9 outer rubber film raw material components, the experimental equipment and method steps of preparing outer rubber layer film are consistent with the experimental equipment and method of preparing middle rubber layer film in embodiment 2, detect experimental result, and For the evaluation of extreme difference, see...

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Abstract

The invention belongs to the technical field of rubber hose, and relates to a hydraulic hose and a preparation method thereof. The hydraulic hose includes an inner rubber layer, a steel wire layer, a middle rubber layer and an outer rubber layer, and the inner rubber film of the inner rubber layer is prepared from raw materials in parts by weight Formed: nitrile rubber N41, solution-polymerized styrene-butadiene rubber; sulfur, crosslinking agent, accelerator and anti-scorch agent; active agent; adhesive; reinforcing agent; filler; anti-aging agent; plasticizer; processing aid The middle rubber film of the middle rubber layer is prepared from raw materials in parts by weight: nitrile rubber N41, solution polystyrene butadiene rubber; sulfur, accelerator; active agent; adhesive; reinforcing agent; filler; antiaging agent ; Plasticizer; Processing aid; The outer rubber film of the outer rubber layer is prepared from raw materials in parts by weight: nitrile rubber N41, rubber-plastic alloy; Sulfur, crosslinking agent and accelerator; Active agent; Adhesive; Reinforcing agent; filler; anti-aging agent; plasticizer; processing aid. This hydraulic hose can be used under the condition of -45~+150℃.

Description

technical field [0001] The invention belongs to the technical field of rubber hoses and relates to a hydraulic hose and a preparation method thereof. The hydraulic hose can transport liquid with a certain pressure and temperature. Background technique [0002] Steel wire braided or wound hydraulic hoses are mainly used in mine hydraulic supports and oilfield mining, suitable for engineering construction, lifting transportation, metallurgical forging, mining equipment, ships, injection molding machinery, agricultural machinery, various machine tools and mechanization and automation of various industrial sectors Petroleum-based and water-based liquids with certain pressure and temperature are transported in the hydraulic system. At present, the domestic steel wire braided winding pipe implements GB / T3683-2011 and GB / T10544-2003 standards, and its service temperature is -40~+100°C, which no longer meets the environment below -40°C and above 100°C. Due to steel wire braiding or ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L11/08C08L9/02C08K13/02C08K3/22C08K5/11C08K3/06C08K3/04C08K5/09C08K3/16
Inventor 孙卓亚王永昌刘路赵永涛李胜利赵晓兵
Owner 河南汇龙液压科技股份有限公司
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