Fire hose with long service life

A fire hose and long-life technology, which is applied in coatings, hoses, mechanical equipment, etc., can solve the problem of unsatisfactory pressure resistance and wear resistance of the hose, irregular components and contents, and short service life, etc. Problems, to achieve the effects of not easy aging delamination, standardized components and content, and good performance

Inactive Publication Date: 2013-08-14
SUZHOU JIAMU ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Recently, there have also been improved products that add a glue layer to the outer surface of the hose, but the composition and content of the material used in the glue layer are not standardized and unreasonable, resulting in the performance of the pressure resistance and wear resistance of this kind of hose. Ideal, long lifespan

Method used

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Embodiment Construction

[0011] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0012] The invention comprises a strip blank and an inner rubber coating layer and an outer rubber coating layer arranged on the inner side and the outer side of the strip blank, the inner rubber coating layer and the outer rubber coating layer are polyurea elastomer coatings; The components and weight percentage of urea elastomer coating are PVC / NBR blend 45%-50%; polyvinyl chloride 20%-22%; acrylate rubber 10%-12%; light calcium carbonate 1%-2 %; anti-aging agent 4%-5%; sulfur 2%-4%.

[0013] The strip blank of the present invention consists of warp and weft weaving. It has the advantages of low cost and long service life.

[0014] Wherein, the warp thread is polyester thread, and the weft thread is polypropylene thread.

[0015] The ...

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PUM

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Abstract

The invention discloses a fire hose with long service life. The fire hose comprises a hose blank and an inner-layer rubber coating and an outer-layer rubber coating which are arranged on the inner side and the outer side of the hose blank respectively. The inner-layer rubber coating and the outer-layer rubber coating are both polyurea elastomer coatings. Each polyurea elastomer coating comprises the following components by weight: 45%-50% of polyvinyl chloride (PVC)/ nitrile butadiene rubber (NBR) blending material, 20%-22% of polyvinyl chloride, 10%-12% of acrylic rubber, 1%-2% of light calcium carbonate, 4%-5% of antiager and 2%-4% of sulphur. The fire hose has good abrasion resistance and long service cycle. Safety performances such as abrasion resistance, bending resistance and high temperature resistance of the hose are greatly improved by means of the coatings applied to the fire hose. Due to the fact that the polyurea elastomer coatings are coated on the inner layer and the outer layer and components and contents of the coatings are standard and reasonable, the fire hose is high in adhesion strength, not easy to age and delaminate, high-temperature-resistant, corrosion-resistant, high-pressure-resistant, good in use performance and long in service life.

Description

technical field [0001] The invention relates to a fire-fighting hose with long service life, belonging to the technical field of fire-fighting equipment. Background technique [0002] The fire fighting and emergency rescue at the fire scene is inseparable from the fire hose. Most of the existing fire hoses add a layer of rubber lining to the inner surface of the fiber braided layer. This kind of hose has poor wear resistance. The pressure is low, and the safety and reliability are not good. [0003] Recently, there have also been improved products that add a glue layer to the outer surface of the hose, but the composition and content of the material used in the glue layer are not standardized and unreasonable, resulting in the performance of the pressure resistance and wear resistance of this kind of hose. Ideal, the service life is not long. Contents of the invention [0004] Aiming at the deficiencies in the prior art, the purpose of the present inventi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L11/00F16L58/10C09D175/02
Inventor 昌军
Owner SUZHOU JIAMU ENG
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