Method for manufacturing steel-plastic composite pipe with rotational moulded inner wall and composite glass fiber outer wall

A steel-plastic composite pipe and steel pipe inner wall technology, applied in the direction of pipes/pipe joints/fittings, pipes, rigid pipes, etc., can solve the problems of high equipment requirements and complex processes, and achieve high bonding, simple process, and strong viscosity Effect

Active Publication Date: 2014-07-23
ZHEJIANG SHUANGLIN PLASTIC MACHINERY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The process of this kind of inner winding plastic layer is more complicated, and the equipment requirements are higher.

Method used

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  • Method for manufacturing steel-plastic composite pipe with rotational moulded inner wall and composite glass fiber outer wall
  • Method for manufacturing steel-plastic composite pipe with rotational moulded inner wall and composite glass fiber outer wall
  • Method for manufacturing steel-plastic composite pipe with rotational moulded inner wall and composite glass fiber outer wall

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Experimental program
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Embodiment Construction

[0029] The technical solutions of the present invention will be further specifically described below through the embodiments and in conjunction with the accompanying drawings.

[0030] In this embodiment, a steel-plastic composite pipe in which the inner wall of the steel pipe is rotomolded and the outer wall is composited with glass fiber, such as figure 1 , figure 2 As shown, the middle steel pipe layer 3 is a skeleton layer and has two structural forms. One is the whole pipe 10 structure, one end is provided with flange 1, and the other end is socket interface 5; the other is the whole pipe A101 structure, one end is welded with steel flange A8, and both flange 1 and flange A8 are provided with There is a bolt hole 9, and the other end is welded with a section of socket 7. There are two grooves on the outside of the socket 7, and the outer diameter of the socket 7 is smaller than the inner diameter of the socket interface 5. The outer diameter of the 7 parts is matched w...

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PUM

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Abstract

The invention relates to a method for manufacturing a steel-plastic composite pipe with a rotational moulded inner wall and a composite glass fiber outer wall. The method aims to solve the forming problem of the steel-plastic composite pipe, the outer wall of the steel-plastic composite pipe is made of composite glass fibers, and the inner wall of the steel-plastic composite pipe is a plastic layer. The method includes the steps of manufacturing a middle steel pipe layer, founding of a rotational moulded inner layer and winding of resin glass fibers containing sand. A smooth rotational moulded inner layer of the inner wall is obtained, the process is simple, special pressing moulds are not needed, parameters such as the wall thickness and coverage are easy to control and can meet design requirements easily, viscosity between layers is strong, the bonding degree is high, and the method is especially suitable for manufacturing steel-plastic composite pipes with large apertures.

Description

technical field [0001] The invention relates to the technical field of composite pipe manufacture, in particular to a method for manufacturing a steel-plastic composite pipe in which glass fibers are composited on the inner wall of a steel pipe by rotational molding and the outer wall. Background technique [0002] Steel-plastic composite pipe has the characteristics of hygiene, non-toxicity, corrosion resistance, no scaling, low thermal conductivity, heat preservation and energy saving, luxurious appearance, strong decoration, small flow resistance, convenient installation, safe and reliable connection, etc., and is widely used in petroleum, Chemical industry, construction, shipbuilding, communication, electric power and underground gas pipelines and many other fields are known as green environmental protection pipes, which have the strength of steel pipes and the advantages of corrosion resistance, wear resistance and small fluid resistance of plastic pipes. Existing manuf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L9/16B29C41/20B29C53/56
CPCB29C41/20B29C53/566F16L9/14
Inventor 傅体强朱肖营施经东
Owner ZHEJIANG SHUANGLIN PLASTIC MACHINERY
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