Novel prefabricated direct-buried polyurethane spraying heat-preservation pipe production line and production process
A prefabricated direct burial, production process technology, applied in the direction of tubular objects, other household appliances, household appliances, etc., can solve the problems of difficult detection, uneven density inside the polyurethane layer, many voids, etc., to avoid high manufacturing costs and improve products. quality, the effect of improving the cladding strength
Inactive Publication Date: 2019-05-10
BC P INC CHINA NAT PETROLEUM CORP +2
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Abstract
The invention discloses a novel prefabricated direct-buried polyurethane spraying heat-preservation pipe production line. The production line is composed of a flame preheating furnace, a shot blastingderusting machine, a pipe-inside blowing sweeping device, a polyurethane spraying system, a polyurethane layer rounding device, a polyurethane curing platform, a polyethylene winding system, a coating cooling system and a pipe end treating device which are arranged in proper sequence. The invention further discloses a novel prefabricated direct-buried polyurethane spraying heat-preservation pipeproduction process which comprises the steps of preheating, shot blasting, blowing sweeping, polyurethane spraying, rounding, curing, polyethylene layer winding, coating cooling and pipe end treating.By means of the novel prefabricated direct-buried polyurethane spraying heat-preservation pipe production line and the production process, the problems of uneven internal density, more cavities and detection difficulty of a polyurethane layer in existing heat-preservation pipe fabrication utilizing a pipe-in-pipe process are solved.
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Tubular articles
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Manufacturing engineeringConductor Coil +7
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PUM
Property | Measurement | Unit |
Length | 100.0 ~ 120.0 | mm |
Thickness | 3.5 ~ 15.0 | mm |
Width | 100.0 ~ 150.0 | mm |
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