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High-pressure hydraulic oil pipe and production method thereof

A technology of hydraulic oil pipe and high pressure, which is applied in the field of high pressure or ultra-high pressure hydraulic oil pipe and its preparation, can solve the problems of difficulty in meeting the requirements of the pressure resistance of the rubber hose, the decline of the yield, and the thinning, and achieves firm bonding performance, increased diameter, The effect of improving bond strength

Inactive Publication Date: 2013-04-24
河北省景县飞龙橡塑制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of directly wound or braided steel wire layer will compress the inner rubber tube during winding or braiding, making it thinner and deformed, resulting in a decrease in its yield; secondly, if the steel wire is braided outside the inner rubber layer, due to the limitation of the equipment The diameter should not be too thick, so that the pressure resistance of the prepared rubber hose is difficult to meet the requirements

Method used

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  • High-pressure hydraulic oil pipe and production method thereof
  • High-pressure hydraulic oil pipe and production method thereof
  • High-pressure hydraulic oil pipe and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Get the nitrile rubber of 20 parts by weight, the white carbon black of 8 parts by weight, the dibutyl ester of 5 parts by weight, the coumarone of 1.0 parts by weight, the stearic acid of 0.15 parts by weight as release agent, 0.20 parts by weight of anti-aging After the agent A is mixed, put it into the internal mixer and stir evenly, then put 1.0 parts by weight of rubber adhesive AS-88, 0.30 parts by weight of vulcanization accelerator D and 0.6 parts by weight of sulfur as the vulcanizing agent into the internal mixer and stir After 15 minutes, the material is discharged; after the material is discharged, it is packaged 6 times on the open mill to produce the film; the produced film is placed for 50 hours to mature to form an adhesive glue; the cloth formed by weaving the warp and weft is woven at a temperature of 190 by the wiping mechanism. In the state of ℃, the adhesive glue is evenly coated on both sides, and the thickness of the adhesive glue on each side is 0...

Embodiment 2

[0043]Get the nitrile rubber of 15 parts by weight, the light calcium carbonate of 8 parts by weight, the white carbon black of 6 parts by weight, the dibutyl ester of 4 parts by weight, the coumarone of 0.6 parts by weight, the paraffin of 0.30 parts by weight for demoulding Anti-aging agent 4020 of 0.35 parts by weight is mixed and then put into the internal mixer and stirred evenly, then 0.6 parts by weight of rubber adhesive A, 0.25 parts by weight of vulcanization accelerator DM and 0.7 parts by weight of sulfur are used as vulcanizing agents. Stir in the internal mixer for 20 minutes and discharge the material; after discharging, go to the open mixer to pack 4 times to produce the film; place the produced film for 40 hours to mature to form adhesive glue; use the cloth formed by weaving the warp and weft The mechanism applies the adhesive evenly on both sides at a temperature of 195°C, and the thickness of the adhesive on each side is 0.5 kg / square meter; it will be coate...

Embodiment 3

[0045] Get the nitrile rubber of 22 parts by weight, the light calcium carbonate of 6 parts by weight, the white carbon black of 10 parts by weight, the magnesium oxide of 2.0 parts by weight, the ferric oxide of 2.0 parts by weight, the dibutyl ester of 8 parts by weight, The coumarone of 1.2 weight parts, the stearic acid of 0.2 weight parts and the paraffin of 0.2 weight parts are made release agent, the antiaging agent MB of 0.40 weight parts is mixed and packed in the internal mixer and stirred evenly, then 0.5 weight parts of Rubber adhesive homogenizer A78, the vulcanization accelerator CZ of 0.20 parts by weight and the sulfur of 0.8 parts by weight are put into the internal mixer and stirred for 25 minutes and then discharged; Place the resulting sheet for 45 hours to mature to form an adhesive glue; use a wiping mechanism to evenly coat the adhesive glue on both sides of the cloth formed by weaving warp and weft threads at a temperature of 180°C. The thickness of the...

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Abstract

The invention belongs to the technical field of hydraulic oil pipes and particularly discloses a high-pressure or super-high-pressure hydraulic oil pipe suitable for cranes especially heavy machinery and a production method thereof. According to the technical scheme, the high-pressure hydraulic oil pipe comprises an inner rubber pipe layer, an outer rubber pipe layer, a plurality of wound or braided pressure-resistant steel wire layers disposed between the inner rubber pipe layer and the outer rubber layer, and a rubber pipe layer disposed between two pressure-resistant steel wire layers. A cloth layer is wound on the outer wall of the inner rubber pipe layer or the rubber pipe layer. The inner rubber pipe layer or the rubber pipe layer are wound or braided by the pressure-resistant steel wire layers. The cloth layer is integrated with the inner rubber pipe layer or the rubber pipe layer by means of adhering. By the high-pressure hydraulic oil pipe, diameter of wound steel wires can be increased, pressure resistance of the prepared high-pressure hydraulic oil pipe is improved greatly, and the pressure resistance requirements of the high-pressure hydraulic oil pipe for hydraulic equipment such as a large crane are satisfied.

Description

technical field [0001] The invention belongs to the technical field of hydraulic oil pipes, and in particular relates to a high-pressure or ultra-high-pressure hydraulic oil pipe suitable for cranes, especially heavy machinery, and a preparation method thereof. Background technique [0002] With the unprecedented development of my country's highways, airports, railways, water conservancy and hydropower, and municipal engineering, various large-scale equipment components and cement prefabricated parts of hundreds of tons or thousands of tons, such as bridge girders and power station components, continue to appear. used. At present, when lifting and transferring the above-mentioned large-tonnage components or prefabricated parts, several cranes must be used to cooperate with each other. When several cranes are used together, because they are independent, it is inevitable that there will be incoordination and cause major accidents; secondly, the large-tonnage components or pref...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L11/08C09J109/02C09J11/04C09J11/06B29D23/00
Inventor 付强
Owner 河北省景县飞龙橡塑制品有限公司
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