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Hydraulic hose

A hydraulic hose and pipe body technology, applied in the direction of hoses, pipes, pipes/pipe joints/pipe fittings, etc., can solve the problems of fatigue resistance, pulse performance of the inner rubber, and aging resistance of the outer rubber without considering the adhesiveness of the middle rubber Sex and other issues, to achieve the effect of simple preparation method

Active Publication Date: 2016-08-24
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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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

[0061] 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.

[0062] 2. First, use the orthogonal table to design, and see Table 3 for the determined four factors and three levels.

[0063] Table 3 Four factors and three levels

[0064]

[0065] 3. Next, experiment was carried out according to the raw material components of these 9 medium rubber films, wherein the production equipment for preparing the medium rubber film comprises a kneader, a Φ150 filter, and a 24-inch open mill. The specific method steps include:

[0066] a. Put the raw gum into the kneader and knead for 3 minutes;

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

Embodiment 3

[0079] 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.

[0080] 2. First, use the orthogonal table to design, and see Table 5 for the determined four factors and three levels.

[0081] Table 5 Four factors and three levels

[0082]

[0083] 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 hoses and relates to a hydraulic hose and a preparation method thereof. The hydraulic hose comprises an inner rubber layer, steel wire layers, a middle rubber layer and an outer rubber layer. An inner rubber sheet of the inner rubber layer is prepared from raw materials including, by weight, nitrile rubber N41, solution polymerized styrene-butadiene rubber, sulfur, a crosslinking agent, a promoter, a scorch retarder, an active agent, a bonding agent, a reinforcing agent, a filling agent, an anti-aging agent, a plasticizer and a processing aid. A middle rubber sheet of the middle rubber layer is prepared from raw materials including, by weight, nitrile rubber N41, solution polymerized styrene-butadiene rubber, sulfur, a promoter, an active agent, a bonding agent, a reinforcing agent, a filling agent, an anti-aging agent, a plasticizer and a processing aid. An outer rubber sheet of the outer rubber layer is prepared from raw materials including, by weight, nitrile rubber N41, rubber-plastic alloy, sulfur, a crosslinking agent, a promoter, an active agent, a bonding agent, a reinforcing agent, a filling agent, an anti-aging agent, a plasticizer and a processing aid. The hydraulic hose can be used within the temperature range from -45 DEG C to 150 DEG C.

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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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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