The inner layer rubber, middle layer rubber and outer layer rubber are mixed with a mixer according to the formula; Extrude the inner rubber tube with an extruder and wrap it on the soft core or hard core coated with mold release agent (the tube core can also be omitted for liquid nitrogen freezing method); The calender presses the middle glue sheet, adds the release agent to roll it up and cuts it to the specified width according to the process requirements; Wrap the inner rubber tube with pipe core on the winding machine or braiding machine with copper plated steel wire or copper plated steel wire rope, and synchronously wind the middle layer of rubber sheet between every two layers of copper plated steel wire or copper plated steel wire rope on the winding machine or braiding machine, and bind the beginning and end of the winding steel wire (some early winding machines need to pre stress the copper plated steel wire); The outer layer of rubber is coated on the extruder again, and then the lead or cloth vulcanization protective layer is wrapped; Vulcanization by vulcanization tank or salt bath; Finally, remove the vulcanization protective layer, pull out the pipe core, buckle the pipe joint, and conduct sampling and pressure inspection.

In short, make high voltage Rubber hose There are many kinds of equipment and raw materials, and the production process is complex. However, in recent years, the production process of hydraulic tubing with plastic or thermoplastic elastomer as the main raw material can be properly simplified, but the raw material price is high, and the rubber raw material is still the main raw material. (Contribution based on work experience in Rubber Research Institute).