Plastic base paper composite pipe

Abstract

The invention discloses a plastic base paper composite pipe and particularly relates to a composite pipe formed by spraying plastic on a metal core rod and with paper as filler. The composite pipe is characterized in that heated liquefied plastic is coated on a rotating core rod mould to form a pipe inner cavity, the heated liquefied plastic is coated on the outer wall of the pipe inner cavity, simultaneously a porous paper belt is utilized to form a bonding body of the plastic and the paper, and the heated liquefied plastic is coated on the outer wall of the bonding body of the plastic and the paper to form the outer wall of the pipe. The pipe is low in cost, high in strength and abrasion-resistant, and utilizes the plastic as a base material and paper as the filler. Accessories of the pipe are general with that of the existing plastic pipes. The plastic base paper composite pipe is good in practicability if applied to the occasions of construction water usage, farm irrigation, outdoor cable penetration, gas and liquid delivery and the like.

Description

technical field [0001] The invention relates to a plastic-based paper composite pipe, in particular to a composite pipe which is plastic-sprayed on a metal mandrel and uses paper as a filler. Background technique [0002] The pipes commonly used in pipeline installation projects are seamless steel pipes, black iron pipes, galvanized steel pipes, steel-plastic pipes, steel porcelain pipes, aluminum-plastic pipes, PVC pipes, PPR pipes, PE pipes, rubber pipes, rubber composite pipes, etc. If it is used in construction water, farmland irrigation, outdoor cable threading and other occasions, the cost of all the above pipes will be relatively high if they meet the construction requirements. [0003] After searching the patent literature, the search results obtained the name "pipe skeleton reinforced plastic composite pipe and its production process" (application number: 201210147340.8) and the name "pipe skeleton plastic composite pipe and its production process" (application numb...

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Problems solved by technology

[0003] After searching the patent literature, the search results obtained the name "pipe skeleton reinforced plastic composite pipe and its production process" (application number: 201210147340.8) and the name "pipe skeleton plastic composite pipe and its production process" (application number: 201210146826.X) The above two application documents must prefabricate the internal pressure tube, use steel wire or glass fiber wire as the reinforcement net, and the steel wire or glass fiber wire is easy to knot and wind when winding at high speed, and glue is used as the adhesive. It is long and the glue is prone to residual harmful substances and harmful volatile gases. When making the outer cladding, the pipe must be loaded into the extruder for processing, resulting in complicated process, increased production cost and low production efficiency.

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