Steel band corrugated pipe electric fusion belt connection with a specially made electric fusion belt. The body is a polyethylene electro-thermal fusion tape embedded in the inner surface of the electric wire, after power on the electro-thermal fusion axis extrusion melt expansion to form the pressure, the interface between the two sides of the polyethylene mutual diffusion, turn off the power, to be cooled and cured to form a reliable connection.
The material used for heat-shrinkable sleeve connection is polyethylene sleeve and reinforcing fiber mesh, through the electron gas pedal radiation to make the polyethylene crosslinking and then through the heating expansion and cooling of the stereotypes, and in the inner wall coated with hot melt adhesive. Connection construction set in the pipe to be connected to the joints, through the torch heating so that the heat shrinkable sleeve; shrinkage and the inner wall of the hot melt adhesive fusion, the formation of a sealed non-leakage and have a certain strength of the connection joints.
Steel band bellows clamp with sealing band connection is to be connected to the two pipe segments from the outer circumference of the split metal clamp hoop together. Clamps made on the raised or curved edge, stuck adjacent to the convex prongs, so that the two pipe segments to be connected in the axial direction is also fixed. Add a layer of elastic sealing tape between the clamp and the pipe, and in the spiral groove of the corrugated steel band at both ends of the fracture joints plugged with elastic sealing block, relying on the clamp's locking tension compression of the elastic sealing tape and elastic sealing block so as to realize the connection of the sealing and non-leakage requirements.
Extrusion melt welding is the use of hand-held welding torch extrusion of molten polyethylene material, the connection seam on both sides of the polyethylene fusion together hand-held welding torch body is a small diameter extruder, can be melted polyethylene welding rod extrusion. At the same time, the part of the polyethylene to be welded is preheated with hot air
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