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How are rubber hoses manufactured?

Time：

2021-01-18

The first step in operating a rubber hose extruder involves mixing and refining the raw rubber with additives through both internal and open‑mill processes, ensuring thorough blending. For extruding rubber hoses, the rubber sheet produced by the open mill is formed into strip‑shaped ribbons. These ribbons are then fed into the rubber hose extruder to produce EPDM rubber hoses. After exiting the extruder, the hoses are conveyed by a haul‑off unit. The inner tube of the rubber hose, pulled forward by the haul‑off machine, passes through a knitting machine where it is wrapped with threads. The thread density can be adjusted according to the pressure rating required for the hose. It then proceeds again through another haul‑off unit—this step is identical to the third one. Next, the outer layer of the rubber hose is extruded using the same extruder; this process resembles the initial stage. The inner tube, already knitted with threads, enters the extruder via a T‑die, and emerges on the opposite side as a pre‑formed, coated hose blank. This blank is then conveyed once more by the haul‑off unit. Subsequently, the rubber hose undergoes cooling and isolation: the finished blank is passed through water for cooling, followed by application of an isolating agent. An automatic cutting machine then takes the hose, which has been treated with the isolating agent, and feeds it into the cutting system. The desired length is set, and the machine automatically trims the hose. Finally, the core is inserted, the hose is shaped and fixed, and high‑pressure vulcanization is carried out. The core‑reinforced hose is placed in a high‑pressure vulcanizing autoclave for curing. Once cured, the product is removed from the mold, completing the manufacturing process and yielding the finished rubber hose. Our company specializes in manufacturing rubber hose extruders, pin‑type rubber extruders, and complete rubber hose extrusion production lines. If you have any inquiries, please contact us at Manager Jiang’s phone number: 13463938789.

The first step in operating a rubber hose extruder is to subject the raw rubber and compounding ingredients to intensive mixing and open‑mill processing, ensuring thorough blending.
In the extrusion process of rubber hoses, the milled rubber sheet is first formed into strip‑shaped strips. Extrusion through a rubber hose extruder can then produce EPDM rubber hoses.
After passing through the extruder, the hose is conveyed by the take-up machine.
After Towed by the tractor Inner tube of a rubber hose , after being knitted by the knitting machine, it is conveyed through the discharge port to the next process. According to 橡 The pressure resistance of the hose can be adjusted by varying the knitting density.
After further Traction machine This step is the same as the third step.
Extruder with a rubber hose at the rear Extrude the outer tube of the rubber hose. This step is similar to the first one. The inner tube of the hose, which has been knitted by the knitting machine, passes through… T The mold head enters the rubber. pipe Extruder, from T On the other side of the die head emerges the wrapped rubber tube blank.
It is then conveyed by a traction machine.
Later, the rubber hose will be subjected to… Cooling and isolation. This is achieved by passing the drawn finished blank through water for cooling, followed by treatment with a release agent.
Automatic Pipe cutting machine This step involves feeding the rubber hose, which has been treated with a release agent, into the cutting system. Once properly set up… Needed Automatic length adjustment Cutting pipes 。
Core assembly. Core setting and shaping. High-pressure vulcanization. Place the rubber hose with the core already inserted into the high-pressure vulcanization autoclave for vulcanization. 。
Remove the product core. This way, you can use a rubber tube extruder to produce the finished product.

Our company specializes in manufacturing rubber hose extruders, pin‑type rubber extruders, and complete rubber hose extrusion production lines. If you have any inquiries, please contact us at the following number: Manager Jiang. 13463938789。