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Rubber for non-stub-bar mandril rubber hoop and preparation method of rubber hoop

A technology without material head and rubber, applied in the field of rubber products, can solve the problems of difficult disassembly and installation, fast thermal conductivity of iron hoops, heavy iron hoops, etc., and achieves the effect of convenient disassembly and installation, flat end and accurate size.

Inactive Publication Date: 2011-08-31
TIANJIN PENGYI GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the vulcanization process, the iron hoop is heavy, and it is difficult to disassemble and install. Moreover, the heat conductivity of the iron hoop is fast, the cost is high, and it is easy to lose during the production process.

Method used

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  • Rubber for non-stub-bar mandril rubber hoop and preparation method of rubber hoop
  • Rubber for non-stub-bar mandril rubber hoop and preparation method of rubber hoop

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0025] Based on the mass parts of each component

[0026]

[0027]

[0028] Manufacturing method of rubber band:

[0029] 1. Mixing: According to the formula of Examples 1, 2 and 3, put the raw rubber and large and small auxiliary materials into the internal mixer to fully mix. The process step is to add raw rubber and a small auxiliary material (including plasticizer, anti-aging Agents, coupling agents and neutralizers, etc.), adding carbon black, oiling, lifting the suppository high, and degumming. When the temperature reaches 120~123℃, the high position of the lift bolt (the high position of the lift bolt refers to the lifting of the top bolt in the internal mixer to a high position, and there is sufficient space for the rubber in the mixing chamber to act on the rotor of the mixer Turn down to make the rubber compound and auxiliary materials fully mixed). When the temperature reaches 180~185℃, the rubber will be discharged. The rotor speed of the internal mixer is 30-40r / min t...

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PUM

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Abstract

The invention relates to rubber for a non-stub-bar mandril rubber hoop and a preparation method of the rubber hoop. The non-stub-bar mandril rubber hoop is prepared from raw materials through banburying, open milling, compression molding and installation, wherein the raw materials comprise ethylene propylene diene rubber, zinc oxide, polyethylene glycol, triethanolamine, stearic acid, an anti-aging agent 4010NA, an anti-aging agent RD, fast extruding carbon black N550, talcpowder treated by a vinyl silane coupling agent, a white softening plasticizer, a coupling agent KH-550, a cross-linking agent BIBP and an auxiliary cross-linking agent TAIC. Compared with a stainless steel hoop, the rubber hoop mandril is convenient to assemble and disassemble. The rubber hoop has low cost which is one tenth that of the stainless steel hoop so as to contribute to reducing production cost of enterprises. The rubber hoop and a rubber pipe are rubber products, so compatibility is high, a metal catalytic oxidation phenomenon does not occur in the processes of metal corrosion and vulcanization, the vulcanization process of the rubber pipe is contributed, and waste caused by cutting stub bars is reduced.

Description

Technical field [0001] The invention relates to a rubber product, in particular to a method for preparing rubber and a rubber band on a headless mandrel mold used in a rubber tube vulcanization process. Background technique [0002] The hose is a kind of tubular rubber product used to transport gas, liquid, slurry or granular materials. It is composed of inner and outer rubber layer and skeleton layer. The material of the skeleton layer can be cotton fiber, various synthetic fibers, carbon fiber or asbestos, steel wire, etc. The basic processes of hose production are rubber mixing processing, cord (see cord) and canvas processing, hose molding, vulcanization, etc. [0003] Hose molding methods are divided into core method (including soft core method and hard core method) and coreless method according to whether the tube core is used or not. The cored method means that the hose is formed on a hard core or a soft core. The coreless method is to directly form the skeleton layer and ...

Claims

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Application Information

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IPC IPC(8): C08L23/16C08K13/06C08K3/22C08K3/04C08K3/34B29C35/02
Inventor 张洪起李智
Owner TIANJIN PENGYI GRP CO LTD
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