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Electric heating type inside and outside spraying equipment and process for steel-plastic composite pipe

A technology of steel-plastic composite pipe and spraying equipment, which is applied in the direction of coating, device for coating liquid on the surface, pretreatment surface, etc., to achieve the effect of continuous production process, uniform thickness and high strength

Inactive Publication Date: 2004-12-29
姜宜川
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide an improved electrothermal type steel-plastic composite pipe internal and external spraying equipment and spraying process in view of the above-mentioned problems existing in the production of steel-plastic composite pipes. Plastic, continuous, efficient, and can be mass-produced; the coating wall thickness is uniform and smooth; safe and hygienic, will not cause water pollution; high strength, long service life

Method used

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  • Electric heating type inside and outside spraying equipment and process for steel-plastic composite pipe
  • Electric heating type inside and outside spraying equipment and process for steel-plastic composite pipe
  • Electric heating type inside and outside spraying equipment and process for steel-plastic composite pipe

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Embodiment Construction

[0017] As shown in the figure, this embodiment consists of a feeding device 1, an electric heating box 2, a leveling and curing box 3, a cooling frame 4, a workbench 5, a lower rail 6-1, an upper rail 6-2, a fluidization cylinder 7, an electrostatic Generator 8, inner nozzle 9, outer nozzle 10, rotating motor 11-1, moving motor 11-2, runner 12, support 13 and steel pipe 14 form.

[0018] In this example, an internal and external plastic spraying device is provided between the electric heating box 2 and the leveling and curing box 3. The device has a fixed workbench 5. On the longitudinal axis of the workbench, a pair of runners 12 are used to support the steel pipe 14. The steel pipe is driven to rotate by the friction of the runner. A rotating motor 11-1 providing power is installed below the runner. Two slide rails 6-1 are respectively arranged on the workbench on both sides of the extension line of the steel pipe axis. There is a fluidization cylinder 7 that can move along ...

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Abstract

The present invention provides electrically heated composite steel-plastic pipe inside and outer spraying apparatus and technique to form homogeneous, smooth and clean plastic coating layer. The technological scheme is that the work bench is provided with two pairs of rotating wheels to support the steel pipe and with motor below them; two lower siding rails with siding fluidizing barrel, inner spraying nozzle and shifting motor; and upper sliding rail over the steel pipe and with two turned fluidizing barrels, outer spraying nozzle and shift motor. The technological process includes derusting, heating, spraying to the inner and outer walls, leveling and curing, cooling, inspection, and piling. The present invention may be used in water supplying pipe and water draining pipe production industry.

Description

technical field [0001] The invention relates to an electrothermal type steel-plastic composite pipe internal and external spraying equipment and a spraying process. It is suitable for the production industry of water supply and drainage pipelines and fire water supply pipelines. Background technique [0002] At present, the gas-liquid delivery pipes commonly used, especially the large-diameter civil water supply pipelines and fire-fighting water supply pipelines, are mostly made of steel pipes, and the surface treatment is generally galvanized. Long-term use is easy to corrode and damage, and zinc will also cause secondary damage to tap water. Pollution; and the use of steel-plastic composite pipes can solve this problem. However, the manufacturing technology of steel-plastic composite pipe is very complicated, especially the plastic coating on the inner wall is very difficult, and the inner wall layer is often easy to delaminate, peel off, and have uneven thickness. At the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05C5/00B05C7/02B05C7/08B05D1/06B05D3/00
Inventor 姜宜川
Owner 姜宜川
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