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高压胶管新的硫化工艺 注意事项
为了安全和方便操作等多方面的问题,现在胶管硫化方法多采用硫化罐硫化,方法是将成型好的管胚放在硫化罐中,以饱和蒸汽或水为传热介质,进行加热加压硫化,硫化温度一般为145~153摄氏度
For the sake of safety and convenient operation, vulcanization in vulcanization tank is often used in rubber tube vulcanization nowadays. The method is to place the shaped tube embryo in the vulcanization tank and use saturated steam or water as heat transfer medium for heating and pressure vulcanization. The vulcanization temperature is generally 145-153 degrees Celsius.
按照胶管的加压方式不一样又分为裸硫化、包扎水布硫化和水硫化。
According to the different pressure ways of rubber hose, it can be divided into bare vulcanization, wrapped water cloth vulcanization and water vulcanization.
裸硫化
Naked vulcanization
内径小的棉线编织、缠绕、针织胶管及无芯夹布胶管大都采用裸硫化,此法工序简单,劳动强度低,生产效率高,但由于硫化时外压比包水布的小,工艺上较难控制,容易产生气泡、脱层、变形等质量问题。其操作工艺是将包覆好外胶的管坯两端封头,以免硫化时蒸汽冲入而产生脱层,然后平放在硫化架托板上送入硫化罐硫化。
Cotton yarn knitting, winding, knitted hose and coreless sandwich hose with small inner diameter are mostly vulcanized bare. The process is simple, labor intensity is low and production efficiency is high. However, because the external pressure during vulcanization is smaller than that of water-covered cloth, it is difficult to control the process, and it is easy to produce quality problems such as bubble, delamination and deformation. The operation process is to cover the ends of the tube blank with the outer rubber, so as to avoid delamination caused by steam rushing in during vulcanization, and then put it flat on the support plate of the vulcanization rack and put it into the vulcanization tank for vulcanization.
包扎水布硫化
Vulcanization of wrapped water cloth
一般适于硬芯法成型的胶管,将在三辊成型机或采用包扎水布机上包好水布管坯,平放在硫化架上,并用软枕垫衬托(以免胶管在硫化过程中压坯),再送入硫化罐内进行硫化。对特殊结构且管壁较厚的胶管,除包水布外,还需用绳子或金属丝加压。
Generally suitable for hard core forming of rubber hose, the blank of water cloth pipe will be wrapped on three roll forming machine or using wrapping water cloth machine, placed flat on the vulcanization rack, and backed with soft pillow pad (so as not to press the blank in the vulcanization process), and then put into the vulcanization tank for vulcanization. For rubber hoses with special structure and thicker wall, besides water cloth, they also need to be pressurized by rope or wire.
水硫化
Water vulcanization
一般适用于无芯夹布胶管,其方法是将包覆好外胶的管坯两端进行封头,平直放置在水槽内,并逐根灌入冷水,使管体完全沉没在水里,以保持内外压力均衡,然后送入硫化罐进行硫化。由于该法需先将水槽内的水加热成过热水(一般蒸汽压力为0.4~0.5MPa),硫化时间较长,需2~3h。该法硫化的生产效率比裸硫化低,但胶管质量比较稳定。

Generally, it is suitable for coreless sandwich hose. The method is to cover the ends of the blank with guanjian.37ix.com.cnmojuggb.37ix.com.cnbaozhuangmo.37ix.com.cnmojujg.37ix.com.cn

mojublg.37ix.com.cn chuguan.37ix.com.cnouter rubber, place it flat in the water tank, and pour cold water one by one, so that the tube can sink completely in the water to keep the internal and external pressure balanced, and then send it into the vulcanization tank for vulcanization. Because the water in the tank needs to be heated to superheated water (the general steam pressure is 0.4-0.5 MPa), the vulcanization time is longer, and it takes 2-3 hours. The production efficiency of vulcanization is lower than that of bare vulcanization, but the quality of rubber hose is stable.

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