High-pressure steel wire braided hose is a common hose used in industrial production, but have you learned about its production process? As a professional manufacturer of steel wire braided tubes, we will introduce the production process of steel wire braided hoses.
1. The inner layer rubber, the middle layer rubber and the outer layer rubber are mixed according to the formula by using a mixer; the inner layer oil pipe is extruded by an extruder and coated on a soft core or a hard core coated with a release agent (liquid nitrogen) The freezing method can also be used without a die).
2. The calender is pressed into a middle layer of rubber sheet, and the separator is wound up and cut into a prescribed width according to the process requirements.
3. Winding the inner tube containing the inner tube on the winding machine or the braiding machine with copper-plated steel wire or copper-plated steel wire rope, and simultaneously winding the middle rubber sheet between each two-layer copper-plated steel wire or copper-plated steel wire rope in a winding machine or a knitting machine. The winding wire is tied at the beginning and at the end (some early winding machines require pre-stressed copper-plated steel wire).
4. Apply the outer layer of glue to the extruder again, and then wrap the lead or cloth vulcanization protective layer.
5. Vulcanize through a vulcanization tank or a salt bath.
6. Finally, remove the vulcanized protective layer, pull out the die, buckle the upper pipe joint, and sample the pressure test. In short, the manufacture of high-pressure oil pipes has many equipments, many types of raw materials, and complicated production processes. However, in recent years, the production process of hydraulic oil pipes using plastic or thermoplastic elastomer as the main raw material can be appropriately simplified, but the raw material price is high, and the rubber raw materials are still mainly used.