Continuous production device of steel plastic composite pipe having holed steel skeleton surface coated with binder

A steel-plastic composite pipe, surface coating technology, applied to pipes, rigid pipes, pipes/pipe joints/pipe fittings, etc., can solve problems such as no connection strength, weak joints, and poor practical application effects

Inactive Publication Date: 2004-02-18
甘国工
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The prior art relates to coating or coating the inner and outer walls of steel pipes or aluminum pipes, steel pipes with an adhesive layer and then extruding the polymer layer or bonding the finished polymer pipe with the adhesive layer to form a composite pipe However, this kind of composite pipe is different from the metal skeleton with holes and the composite pipe of the polymer. Although the composite pipe composited with the metal pipe without holes has good pressure bearing capacity and strong anti-corrosion ability, the polymer The linear expansion coefficient of the polymer layer and the metal pipe is an order of magnitude different. When used in a heated environment or a cold envir

Method used

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  • Continuous production device of steel plastic composite pipe having holed steel skeleton surface coated with binder
  • Continuous production device of steel plastic composite pipe having holed steel skeleton surface coated with binder
  • Continuous production device of steel plastic composite pipe having holed steel skeleton surface coated with binder

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0056] Example 1:

[0057] Figure 1 ~ Figure 5 , The figure of Example 1 of the present invention is given. The forming sizing welding mechanism 1, the adhesive coating mechanism 2, the extrusion compounding mechanism 3, the sizing cooling forming mechanism 4, and the frame and / or sticky powder frame heater 5 are arranged in the order of the composite pipe forming process.

[0058] See figure 2 , The forming and sizing welding mechanism of the cylindrical steel frame is formed by the frame 6, and the steel plate 7 with holes installed on the frame is longitudinally rolled into the forming mechanism 8 of the cylindrical frame composed of multi-component wheels. A sizing mechanism 9 composed of multiple sets of fixed wheels, a welding motor 10, and a cylindrical frame sizing sleeve 11 can be further accurately reshaped and sized for the formed cylindrical skeleton. The adhesive coating mechanism includes a powder recovery shield box 12, a fluidized bed 13 located in the powder rec...

Example Embodiment

[0059] Example 2:

[0060] Figure 6 A diagram of Example 2 of the present invention is shown. The second embodiment is basically the same as the first embodiment. The difference is that a cylindrical skeleton heater 5 is provided at the front and rear of the adhesive coating mechanism. The advantages of setting heaters separately can increase the thickness of the coating adhesive to better melt and cover the skeleton, and increase the preheating capacity of the skeleton, which is better in the die of the extrusion compounding mechanism. The inner and outer layers of the skeleton form a polymer continuum and bond or compound with the binder and the skeleton more firmly.

Example Embodiment

[0061] Example 3:

[0062] Figure 7. Figure 8 A schematic structural diagram of Embodiment 3 of the present invention is given. In this embodiment, there are a steel wire spirally wound cylindrical steel frame forming and sizing welding mechanism 26, an adhesive spraying mechanism 27 for the steel wire frame, an extrusion compounding mechanism 28 for extruding polymer, and a sizing cooling forming mechanism 29 for a composite pipe. The forming and sizing welding mechanism 26 includes a frame 27, a radial pay-off frame 28 at the front end of the frame, a mandrel 30 containing a cylindrical support electrode 29, and a hollow sleeve on the mandrel driven by a motor to wind the wire. Turntable 31, a pad 32 that is rotatably driven by a motor and sleeved on the mandrel. The pad is symmetrical on the mandrel and has a pair of positive and negative poles corresponding to the three-phase power supply 33 at positions corresponding to the conductive ring. Connected welding wheel 34.

[006...

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PUM

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Abstract

An apparatus for continuously manufacturing the composite steel-plastics pipe whose perforated steel skeleton is coated by adhesive is composed of a shaping-sizing welder unit, adhesive coating unit,steel skeleton heater, extruding out unit with hollow core die and cooling-sizing sleeve, and sizing-cooling unit.

Description

Technical field: [0001] The invention relates to a metal frame with holes as a reinforcing body, and a production device for extruding composite polymer materials on the inner and outer surfaces of the frame to form metal frame-reinforced plastic composite pipes, in particular to a metal frame with holes A continuous production device for plastic composite pipes that are pre-coated with an adhesive layer before the composite material is extruded on the surface. Background technique: [0002] There are many methods and devices for the production technology of steel-plastic composite pipes, as well as corresponding patents, which use a metal skeleton with holes as a reinforcement, and extrude a composite polymer material on the skeleton as a continuum to wrap the skeleton to form a steel-plastic composite pipe. 的报道和公开,如英国专利GB2255、148A92.10.28,中国专利申请号94104509.9、申请号98119383.8、申请号99232026.7申请号99232162.X和99232214.6申请号99114790.1申请号00222720.7和00132035.1申请号99112221.6申请号01113962.5。 ...

Claims

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Application Information

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IPC IPC(8): B21C37/06B29C47/02F16L9/147
Inventor 甘国工
Owner 甘国工
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