Process for manufacturing steel strip reinforced polyethylene helical bellows
The invention relates to a polyethylene spiral and manufacturing process technology, which is applied to the manufacturing field of steel belt reinforced polyethylene spiral corrugated pipes, and can solve the problems of inconvenient operation, difficult manufacturing and low construction efficiency.
Active Publication Date: 2014-04-02
广州枫叶管业有限公司
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Problems solved by technology
The traditional steel belt reinforced polyethylene spiral corrugated pipe is composed of inner layer polyethylene, spiral steel belt and outer layer polyethylene, and its molding is directly completed on the extruder. During construction, the port of the steel belt reinforced polyethylene spiral Docking, and then wrap the hot melt tape at the interface, and the hot melt tape is heated twice to connect the spiral bellows together. In this way to connect the spiral bellows, repair welding is required on the inner wall of the interface, which is extremely inconvenient to operate. And the construction efficiency is low
Now, there are also sockets installed at both ends of the steel belt reinforced polyethylene spiral corrugated pipe with the above structure. To realize the connection, although the construction of the spiral corrugated pipe with this structure saves time and improves the efficiency, the socket and the spiral corrugated pipe body are integrally formed, so the manufacturing is difficult and the manufacturing cost is high
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[0035] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0036] like Figure 1 to Figure 7 As shown, the steel belt reinforced polyethylene spiral corrugated pipe includes a spiral corrugated pipe body 1 composed of an inner layer of polyethylene, a spiral steel belt and an outer layer of polyethylene arranged in sequence from the inside to the outside, and one end of the spiral corrugated pipe body 1 is connected There is a socket 2, the other end is connected with a socket 3, the inner surface of the socket 2 is tapered, the outer surface of the socket 3 is tapered, the inner surface of the socket 2 and the outer surface of the socket 3 have the same taper size; A hot-melt mesh belt 4 wound in a radial direction is welded, and the hot-melt mesh belt has two ends, and electrodes 5 are connected to the two ends to facilitate electrical communication with the outside world.
[0037] The manuf...
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The invention discloses a process for manufacturing steel strip reinforced polyethylene helical bellows, which comprises the following steps: manufacturing the bodies of the steel strip reinforced polyethylene helical bellows; manufacturing the joints thereof; and connecting the joints thereof to the two ends of the bodies thereof. The process of the invention has the advantage of high efficiency; and the manufactured steel strip-reinforced polyethylene helical bellow has the advantages of good quality, low manufacturing difficulty level and low manufacturing cost.
Description
technical field [0001] The invention relates to a method for manufacturing a spiral corrugated pipe, in particular to a method for manufacturing a steel strip reinforced polyethylene spiral corrugated pipe. Background technique [0002] Steel belt reinforced polyethylene spiral corrugated pipe has many advantages such as smooth inner wall, strong resistance to external pressure, corrosion resistance, etc. It is an ideal pipeline for buried drainage. The traditional steel belt reinforced polyethylene spiral corrugated pipe is composed of inner layer polyethylene, spiral steel belt and outer layer polyethylene, and its molding is directly completed on the extruder. During construction, the port of the steel belt reinforced polyethylene spiral Docking, and then wrap the hot melt tape at the interface, and the hot melt tape is heated twice to connect the spiral bellows together. In this way to connect the spiral bellows, repair welding is required on the inner wall of the interf...
Claims
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IPC IPC(8): B29D23/00
Inventor 何建兴闫超余雪云沈艳斌
Owner 广州枫叶管业有限公司