Rubber hose assembly for fire extinguisher and production method thereof

A technology for rubber hoses and fire guns, applied in the directions of hoses, hose connection devices, pipes, etc., can solve the problems of poor flame retardant performance, sacrificing high temperature resistance, etc., to ensure corrosion resistance, tensile and blasting performance. Excellent, avoid burning or high temperature cracking effect

Active Publication Date: 2021-10-29
NANJING ORIENTLEADER TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ethylene propylene rubber has good high temperature resistance, but its flame retardancy is very poor. Although the flame retardancy can be improved by adding various flame retardants, the high temperature resistance of ethylene propylene rubber is sacrificed at the same time.

Method used

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  • Rubber hose assembly for fire extinguisher and production method thereof
  • Rubber hose assembly for fire extinguisher and production method thereof
  • Rubber hose assembly for fire extinguisher and production method thereof

Examples

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Embodiment

[0028] The technical solutions of the present invention will be further described below in conjunction with specific examples.

[0029] Raw material components and proportioning ratio (unit: g) of table 1 ethylene-propylene rubber composition

[0030]

[0031]

[0032] A rubber hose assembly for a fire extinguisher, comprising a rubber hose and metal joints at both ends of the rubber hose. For the rubber layer, the wall thickness of the inner rubber layer is 1.9mm, the wall thickness of the outer rubber layer is 1.3mm, and the thickness of the braid layer between the inner and outer rubber layers is 0.9mm; the inner diameter of the rubber hose is 10±0.3mm. The preparation method is as follows:

[0033] Step (1), weigh the raw materials of the rubber composition according to Table 1, add to the internal mixer and mix for about 100 seconds to form an ethylene-propylene rubber composition compound; 3 knives, and then send the mixed rubber to the tablet press through the c...

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Abstract

The invention discloses an EPDM rubber composition, which is prepared from the following raw material components in parts by weight: 100 parts of EPDM rubber, 0.5-3 parts of anti-aging agent MB, 1-3 parts of anti-aging agent RD, Quickly extruded carbon black N550 50-100 parts, paraffin oil 50-80 parts, stearic acid 1-3 parts, zinc oxide 5-10 parts, flame retardant 50-160 parts, vulcanizing agent 1-5 parts, accelerator 1-3 parts of BZ, 1-3 parts of accelerator DM, and 1-3 parts of accelerator TMTD. The invention also discloses a rubber hose assembly for a fire extinguisher, which includes a rubber hose and metal joints at both ends of the rubber hose. The rubber hose includes inner and outer rubber layers made of ethylene-propylene rubber composition, The braided layer located between the inner and outer rubber layers. The invention not only ensures the high temperature resistance performance of the ethylene-propylene rubber composition, but also achieves the flame-retardant effect of V0 grade required by the UL94 standard, and is suitable for producing rubber hoses for fire extinguishers.

Description

technical field [0001] The invention belongs to the technical field of rubber parts for fire fighting, and relates to an ethylene-propylene rubber composition, a rubber hose assembly for a fire extinguisher using the ethylene-propylene rubber composition as raw materials for inner and outer rubber layers and a production method thereof. Background technique [0002] Fire is an unavoidable natural and man-made disaster. Once a fire occurs, it needs to be extinguished quickly and effectively while avoiding environmental pollution as much as possible. The portable fire extinguisher, especially the knapsack fire extinguisher is a small fire extinguisher developed according to the actual situation of the fire brigade. It is light and easy to carry, flexible and maneuverable, and highly efficient. It is suitable for small-scale A, B, C and live equipment fires. The fire officers and soldiers eliminated the fire danger at the first time of the fire scene investigation. [0003] Th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/16C08L91/06C08K13/02C08K3/04C08K3/22C08K5/09C08K3/02F16L11/08F16L33/34
CPCC08K2003/026C08K2003/2296C08K2201/014C08L23/16C08L2201/02C08L2201/08C08L2203/18F16L11/085F16L33/34C08L91/06C08K13/02C08K3/04C08K3/22C08K5/09C08K3/02
Inventor 郭磊王亮燕岳小雪邹惠芳马妍
Owner NANJING ORIENTLEADER TECH CO LTD
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