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入口密封(即伸缩节)是挤橡机头与硫化管的活络连接部分,主要便于调节绝缘或护套层和起密封作用。合肥电缆厂入口密封的伸缩管,原是采用手轮传动、人力移动的,劳动强度高,操作人员在高温下常会被烫伤,很不安全。为此,该厂对φ150毫米倾斜式冷喂料连硫机组的入口密封,进行了改进。其中手轮操作仍然保留,另增设了气体传动装置。在正常情况下用气动操作;在停电或气动装置发生故障时,就用手动操作。这一改革,既减轻了劳动强度,又保证了人身安全。
The inlet seal (ie, telescopic section) is the active connecting part between the rubber extruder head and the vulcanization tube, which is mainly used for adjusting the insulating or sheathing layer and sealing function. Hefei cable factory entrance sealed telescopic tube, the original is the use of hand-wheel drive, human movement, high labor intensity, the operator often scalded at high temperatures, it is not safe. To this end, the factory on φ150 mm inclined cold feed throat unit inlet seal has been improved. Handwheel operation is still retained, another additional gas transmission. Pneumatically operated under normal conditions; manual operation in the event of a power outage or pneumatic device failure. This reform has not only reduced the labor intensity but also ensured personal safety.