Metal reinforcement structural wall plastic pipe and manufacture method

Abstract

The invention relates to a metal reinforcement structural wall plastic pipe and a manufacture method thereof. The metal reinforcement structural wall plastic pipe comprises a plastic pipe and is characterized in that at least one metal sheet reinforcement is wound along the outer wall of a plastic pipe; and the metal sheet reinforcement comprises a metal sheet as well as hot melting glue, a blocking layer, hot melting glue and plastics which are sequentially coated at the outer layer. The method for manufacturing the metal reinforcement structural wall plastic pipe is characterized by comprising the following steps of: (1) pretreating; (2) coarsening and heating; (3) coating the hot melting glue and the blocking layer; (4) manufacturing the metal reinforcement; (5) bending and moulding; (6) overlapping, jointing and heating; (7) bonding on the surface of the plastic pipe; and (9) cutting to form a finished product. Compared with the traditional steel plastic winding drainage pipe, the invention has the advantage of adding the hot melting glue between the reinforced metal sheet and the plastics so that the plastics and metal are tightly bonded into a whole. A protecting layer can prevent the metal reinforcement of the plastic pipe from damage in construction and rusting.

Description

technical field [0001] The invention relates to a structural wall plastic pipe, in particular to a metal-reinforced structural wall plastic pipe and a manufacturing method thereof. Background technique [0002] The steel-plastic winding drainage pipe was first developed by KraussMaffei in cooperation with an Australian pipe manufacturer, and it is called SRP pipe abroad. The current problems of the steel-plastic winding drainage pipe are as follows: First, the plastic has air permeability, especially in the high temperature of the conveying medium and the acid-base environment, its air permeability is greater, and the service life of the steel is worth considering. The second is that the plastic protective layer on the top of the external reinforcement of the steel-plastic winding drainage pipe is very thin. If the plastic outer layer is damaged during construction and handling, the consequences may be worse. As the reinforced steel is corroded and damaged, As a result, the...

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Problems solved by technology

The current problems of the steel-plastic winding drainage pipe are as follows: First, the plastic has air permeability, especially in the high temperature of the conveying medium and the acid-base environment, its air permeability is greater, and the service life of the steel is worth considering. The second is that the plastic protective layer on the top of the external reinforcement of the steel-plastic winding drainage pipe is very thin. If the plastic outer layer is damaged during construction and handling, the consequences may be worse. As the reinforced steel is corroded and damaged, As a result, the strength is lost, and the strength of the entire pipe is also sharply reduced, or even lost; the third is that the pipe wall between the reinforcements of the steel-plastic winding drainage pipe does not have any reinforcements, and it is a weak link to rely entirely on plastic to withstand external pressure; It is that hot melt adhesive is not used, and the direct contact between plastic and steel belt is not enough. Fifth, the existing equipment for producing steel-plastic winding drainage pipes has the following defects: 1). There is no degreasing, rust removal, and deburring of steel belt , Deburring device, 2). There is no device for heating the steel strip, 3). There is no hot melt adhesive coating device. 4). There is no barrier layer coating device. 5). The heating device cannot melt the plastic

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