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Steel wire woven high-pressure rubber pipe and preparation process thereof

A steel wire braided, high-pressure hose technology, applied in the direction of hoses, pipes, mechanical equipment, etc., can solve the problems of frequent replacement of steel wire braided hoses, wear and tear on the outer layer of rubber, etc.

Pending Publication Date: 2021-07-30
宁波舜龙胶管有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] When using the cleaning machine, it is necessary to move the cleaning machine. The exposed steel wire braided high-pressure hose often rubs against the ground. Although the rubber has a certain wear resistance, due to frequent friction with the rough bottom surface, the rubber of the steel wire braided high-pressure hose will still be damaged. The outer layer is severely worn, causing the steel wire braided hose to be replaced frequently, so there is still room for improvement

Method used

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  • Steel wire woven high-pressure rubber pipe and preparation process thereof
  • Steel wire woven high-pressure rubber pipe and preparation process thereof
  • Steel wire woven high-pressure rubber pipe and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0066] The preparation method of the inner layer glue is as follows:

[0067] Get 105kg nitrile rubber, 4kg zinc oxide, 0.4kg hard ester, 1.0kg antioxidant RD, 55kg carbon black, 20kg coumarone resin, 2kg vulcanizing agent DTDM.

[0068] Utilize internal mixer to masticate the nitrile rubber, the masticating time is 5 minutes, and the masticating temperature is 68 degrees centigrade. Mix the masticated nitrile rubber with the rest of the raw materials, and then use an internal mixer to knead. The kneading time is 10 minutes, and the kneading temperature is 95 degrees Celsius. After the kneading is completed, the inner rubber is obtained, filtered, Unload the film and park for use.

preparation example 2

[0070] The preparation method of the middle layer glue is as follows:

[0071] Get 105kg nitrile rubber, 4.5kg zinc oxide, 0.5kg hard ester, 1.5kg antioxidant RD, 40kg carbon black, 25kg coumarone resin, 1.5kg vulcanizing agent DTDM.

[0072] Utilize internal mixer to masticate nitrile rubber, the masticating time is 4 minutes, and the masticating temperature is 50 degrees centigrade. Mix the masticated nitrile rubber with the rest of the raw materials, and then use an internal mixer to knead. The kneading time is 9 minutes, and the kneading temperature is 60 degrees Celsius. , unload, park for use.

[0073] The middle-layer compound rubber is calendered by a calender to obtain the middle-layer rubber.

preparation example 3-5

[0075] The preparation method of the outer layer glue is as follows:

[0076] Step a): use the internal mixer to masticate the nitrile rubber, the mastication time is 6 minutes, the mastication temperature is 55 degrees Celsius, and the specific amount of nitrile rubber is shown in Table 2.

[0077] Step b): mixing the masticated nitrile rubber and other raw materials using a banbury mixer, the specific raw material consumption refers to Table 2, the banbury time is 6 minutes, and the banbury temperature is 55 degrees Celsius to obtain the mixed rubber; step c): Filtering the mixed rubber and removing it to obtain the ready-to-use rubber.

[0078] Step d): using a calender to calender the rubber to be used to obtain the outer layer of rubber. ,Table 2

[0079]

[0080]

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Abstract

The invention relates to the field of high-pressure rubber pipes, in particular to a steel wire woven high-pressure rubber pipe and a preparation process thereof. A steel wire woven high-pressure rubber pipe comprises a rubber inner layer, a first steel wire layer, a rubber middle layer, a second steel wire layer and a rubber outer layer which are sequentially arranged from inside to outside, the rubber inner layer is made of inner layer rubber, the rubber middle layer is made of middle layer rubber, the first steel wire layer and the second steel wire layer are formed by weaving steel wires, and the rubber outer layer is made of outer layer rubber; wherein the outer layer rubber comprises the following raw materials: nitrile rubber, zinc oxide, stearic acid ester, an anti-aging agent, filler, a plasticizer, dodecylbenzene sulfonic acid and a vulcanizing agent. A preparation method comprises the following steps: performing raw rubber preparation, plastifying, mixing, filtering, batching out, inner pipe extrusion, steel wire weaving, middle rubber calendering, outer rubber coating, rubber pipe cloth winding, vulcanization and cloth unwrapping to obtain a finished product. The composition of the invention has the advantages that the wear resistance of the outer rubber layer is improved, so that the service life of the steel wire woven high-pressure rubber pipe is prolonged.

Description

technical field [0001] The present application relates to the field of high-pressure rubber hoses, more specifically, it relates to a steel wire braided high-pressure rubber hose and its preparation process. Background technique [0002] Steel wire braided high-pressure hose is suitable for injection molding machinery, various machine tools, mechanized and automated hydraulic systems in various industrial sectors, and can also be used for cleaning machines. It is used to transport petroleum-based (such as mineral oil, soluble oil, hydraulic oil, fuel oil, lubricating oil) and water-based liquid (such as emulsion, oil-water emulsion, water) with high pressure and temperature. [0003] Steel wire braided high-pressure hoses are generally provided with an inner rubber layer, a middle layer and an outer rubber layer in sequence from the inside to the outside. The middle layer includes several steel wire layers and several middle rubber layers. The steel wire layers and the middl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L11/08C08K13/02C08K5/18C08K5/20C08K5/13C08K5/42C08L9/02B29D23/00
CPCF16L11/082C08K13/02C08K5/18C08K5/20C08K5/13C08K5/42B29D23/001C08L9/02
Inventor 李世龙肖清陈恒辉黄成业张坤浩
Owner 宁波舜龙胶管有限公司