Performance and Process of Rubber Hose Extruders
Time：
2019-07-14
There are many types of rubber hoses. Classified by their structure, they can be divided into single-layer hoses, double-layer composite hoses, and multi‑layer hoses with intermediate layers. Due to these structural differences, the equipment and manufacturing processes used for each type also vary. The production process for single‑extrusion hoses is relatively simple: a pin‑type rubber extruder is used to form the hose into the desired shape, after which it undergoes vulcanization in a hot‑air curing oven. Once vulcanization is complete, the hose is quenched in water to cool it, yielding the finished product. In contrast, specialized hoses with multiple layers—such as automotive hoses—require a more complex manufacturing process.
There are many types of rubber hoses. Classified by structure, they include single‑layer hoses, double‑layer composite hoses, and multi‑layer hoses with intermediate layers. Because their structures differ, the equipment and manufacturing processes used for each type also vary. The production process for single‑extrusion hoses is relatively simple: a pin‑type rubber extruder shapes the hose into the desired profile, after which it undergoes vulcanization in a hot‑air vulcanizing oven. Once vulcanization is complete, water cooling yields the finished product. In contrast, specialized multi‑layer hoses—such as automotive hoses—are considerably more complex to produce. First, an extruder forms the inner layer; once this layer is extruded, a conveyor transports the hose to a knitting machine for thread weaving. A drawing unit then feeds the knitted hose into the T‑die of a second extruder. The rubber extruded from this second machine bonds with the knitted hose blank, creating the desired hose structure. After extrusion, the product must be rinsed with water and treated with a release agent. Next, it is cut to length on a fixed‑length cutting machine according to the required dimensions. The cut hoses are then placed in shaping molds to set their final form, before being transferred to a vulcanizing tank for vulcanization. This vulcanization process differs from that performed in a hot‑air oven: the pressurized method is referred to as “pressurized vulcanization,” while the hot‑air oven approach is called “unpressurized vulcanization.” The specific vulcanization technique employed is selected based on the particular product requirements.
Hebei Shuangda Rubber & Plastics Equipment Co., Ltd. is a manufacturer of extruders. Our product lineup includes rubber extruders, plastic extruders, sealing strip production lines, EPDM vulcanization lines, gel filtration machines, and rubber cutting machines, among others. Customers interested in our equipment are welcome to visit our facility for an on-site inspection or to contact us by phone for more information.
Related news
Shuangda
Hebei Shuangda Rubber Machinery Co., Ltd.
Tel：400-0319-386
Landline：+86-319-6017632
Email：shuangdaxiangsu@126.com
Official website：www.shuangdajx.com
Addr：Liyuantun Industrial Zone, Weixian County, Xingtai City, Hebei Province
Copyright © 2022 Hebei Shuangda Rubber Machinery Co., Ltd.