Mixing the inner layer glue, middle layer glue and outer adhesive by mixing machine according to the

1, mixing the inner layer glue, the middle layer glue and the outer layer glue by mixing machine, and extruding the inner oil pipe with extruder, and coating it on the soft core or hard core coated with release agent (liquid nitrogen freezing method also can not use the core).
2. The calender is pressed into the middle layer of the thin film, adding the isolator to reel and tailor the prescribed width according to the requirement of the process
3, the core tube containing inner tubing winding or braiding on copper wire or copper wire rope in winding machine or knitting machine, winding machine or knitting machine at the same time in the middle will glue sheet synchronization winding in each of the two layer of copper wire or copper wire rope, wire winding Hengchuangt and end winding machine for (some of the early binding pre plating steel prestressed stereotypes processing)
4. Cover the outer coating on the extruder again, and then wrap the lead or the vulcanized protective layer.
5. Vulcanization by vulcanization tank or salt bath
6, finally remove the sulfide protective layer, pumped out of the tube core, pressing pipe joint, pressure sampling inspection.
In a word, the production of high pressure oil pipe has many equipment, many kinds of raw materials, and the production process is complex. But in recent years, the production technology of hydraulic tubing with plastic or thermoplastic elastomer as the main raw material can be simplified properly, but the raw material is high, and the rubber raw material is still the main material.