Manufacturing process of light bendable high and low temperature resistant spiral water suction pipe
The invention discloses a manufacturing process of a light bendable high and low temperature resistant spiral water suction pipe. The spiral water suction pipe comprises a pipe body and ribs arranged on the surface of the pipe body, the ribs are extruded by an extruder, a soft material is extruded b...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention discloses a manufacturing process of a light bendable high and low temperature resistant spiral water suction pipe. The spiral water suction pipe comprises a pipe body and ribs arranged on the surface of the pipe body, the ribs are extruded by an extruder, a soft material is extruded by the extruder, and the rib material and the soft material are co-extruded into a winding strip by the extruder. The extruded molten winding strip is lapped, wound, cooled and shaped through a spiral winding unit. The manufacturing process has the beneficial effects that the high-impact co-polypropylene can resist low temperature of minus 35 DEG C and high temperature of 55 DEG C, and provides enough strength and hardness as a rib, although the high-temperature resistance of TPE or POE is poor, the strength of TPE or POE is high and the TPE or POE is well bonded with the polypropylene rib, even if the high temperature of 55 DEG C is reached, the strength of the TPE or POE is reduced, the TPE or POE can still meet t |
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