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Production process and production device of plastic-coated thick-wall metal pipes

A production process and metal pipe technology, applied in the field of plastic-coated thick-walled metal pipe production process and production equipment, can solve the problems of difficult control and cumbersome process steps, etc., and achieve the effects of improving production efficiency, good control performance and simple structure

Inactive Publication Date: 2010-12-15
李志雄
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The process steps are cumbersome and difficult to control

Method used

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  • Production process and production device of plastic-coated thick-wall metal pipes
  • Production process and production device of plastic-coated thick-wall metal pipes
  • Production process and production device of plastic-coated thick-wall metal pipes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0036] The production technique of the plastic-coated thick-walled metal pipe of the present invention comprises the following steps:

[0037] 1) Put a certain length of thick-walled metal pipe on the pipe rack 1, the pipe rack 1 sends the thick-walled metal pipe into the power bracket 2 parallel to it, and plugs the built-in device 3 for connecting pipes to the pipe The front end of the thick-walled metal pipe on the frame 1;

[0038] 2) The thick-walled metal pipe sent from the pipe rack 1 is automatically raised under the action of the power bracket 2;

[0039] 3) Immediately after the connecting pipe device 4 acts to align and connect the front and rear two thick-walled metal pipes together to form a continuous thick-walled metal pipe;

[0040] 4) The connected thick-walled metal pipe is transported forward by the traction conveyor roller 5;

[0041] 5) The connected thick-walled metal pipe is preheated by the heating device 6;

[0042] 6) The granular conductive adhesi...

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PUM

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Abstract

The invention relates to production process and production device of plastic-coated thick-wall metal pipes. The production device comprises a pipe rack (1), a dynamic bracket (2), a built-in device (3) for connecting pipes, a pipe connecting device (4), a traction conveying roller (5), a heating device (6), a first extruder (7), a first air cooler (8), a second extruder (9), a second air cooler (10), a soaking water tank (11), a spraying water tank (12), a third air cooler (13), a high-frequency heating device (14), a third extruder (15), a cooling water tank (16) and a fourth air cooler (17). The production process is completed through operating the devices in sequence, has high automation degree, and can improve the technological level and production efficiency. And the devices utilized in the production process of plastic-coated thick-wall metal pipes are characterized by simple structure, good control property and stable and reliable operation.

Description

technical field [0001] The invention relates to a production process and equipment for a plastic-coated thick-walled metal pipe, in particular to a plastic-coated thick-walled metal pipe for a multi-layer conductive busbar used in a power supply system. It belongs to the innovative technology of the production process and production equipment of plastic-coated thick-walled metal pipes. Background technique [0002] Due to the large skin effect and large loss of rectangular busbars when transmitting large currents, substations are gradually replacing rectangular conductors with tubular conductors as busbars on the low-voltage side of the main transformer in substations and distribution stations. The tubular conductor is a hollow conductor with a large cross-section and uniform current density distribution on the conductor surface; low skin effect and low power loss; good heat dissipation conditions and low temperature difference; large allowable stress and high strength; stro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B13/004
Inventor 李志雄
Owner 李志雄
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