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Galvanized composite steel pipe manufacturing process

A manufacturing process and technology for composite steel pipes, applied in the field of steel pipe manufacturing processes, can solve the problems of high manufacturing cost, complex manufacturing process, unfavorable popularization and application, etc., and achieve the effects of long service life, simple manufacturing process and low production cost

Inactive Publication Date: 2017-06-09
广汉市川西机电备件有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current galvanized composite steel pipe manufacturing process is relatively complicated, and the manufacturing cost is also high, which is very unfavorable for popularization and application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Embodiment 1: a kind of manufacturing process of galvanized composite steel pipe of the present invention, comprises the following steps: A, first cleaning the outer surface of the stainless steel pipe, then coating the hot-melt adhesive on the outer surface of the stainless steel pipe, wherein the hot-melt adhesive Coating thickness is 0.1mm; B. Insert the stainless steel pipe into the galvanized pipe and seal both ends; C. Pass the pressure saturated steam into the stainless steel pipe and heat the outer surface of the galvanized pipe, wherein the saturated steam pressure introduced is 4MPa, the heating temperature of the outer surface of the galvanized pipe is 120 degrees Celsius.

Embodiment 2

[0014] Embodiment 2: a kind of galvanized clad steel pipe manufacturing process of the present invention, comprises the following steps: A, the outer surface of stainless steel pipe is cleaned earlier, then is coated with hot-melt adhesive on the outer surface of stainless steel pipe, wherein hot-melt adhesive Coating thickness is 0.3 mm; B. Insert the stainless steel pipe into the galvanized pipe and seal both ends; C. Pass pressure saturated steam into the stainless steel pipe and heat the outer surface of the galvanized pipe, wherein the saturated steam pressure introduced is 6MPa, the heating temperature of the outer surface of the galvanized pipe is 160 degrees Celsius.

Embodiment 3

[0015] Embodiment 3: a kind of galvanized clad steel pipe manufacturing process of the present invention, comprises the following steps: A, first cleaning the outer surface of the stainless steel pipe, then coating the hot-melt adhesive on the outer surface of the stainless steel pipe, wherein the hot-melt adhesive Coating thickness is 0.2 mm; B. Insert the stainless steel pipe into the galvanized pipe and seal both ends; C. Pass pressure saturated steam into the stainless steel pipe and heat the outer surface of the galvanized pipe, wherein the saturated steam pressure introduced is 5MPa, the heating temperature of the outer surface of the galvanized pipe is 140 degrees Celsius.

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PUM

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Abstract

The invention discloses a manufacturing process of a galvanized composite steel pipe. The manufacturing process of the galvanized composite steel pipe comprises the following steps: A. coating a hot-melt adhesive on the outer surface of the stainless steel pipe; B. embedding the stainless steel pipe into the galvanized pipe and Seal both ends; C. Pass pressure saturated steam into the stainless steel pipe and heat the outer surface of the galvanized pipe. The invention discloses a manufacturing process for galvanized composite steel pipes. After feeding pressure-saturated steam into the stainless steel pipes and heating the outer surface of the galvanized pipes, the stainless steel pipes can be quickly bonded through the hot-melt adhesive between the stainless steel pipes and the galvanized pipes. The bonding with the galvanized pipe is firm, making the manufacturing process simple, the production cost low and the service life long.

Description

technical field [0001] The invention relates to a steel pipe manufacturing process, in particular to a galvanized composite steel pipe manufacturing process. Background technique [0002] In the transmission process of clean fluid medium, steel-plastic composite pipes are often prone to aging due to their materials, so galvanized composite steel pipes are a good substitute for pipe fittings. The current galvanized clad steel pipe manufacturing process is relatively complicated, and the manufacturing cost is also relatively high, which is very unfavorable for popularization and application. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a galvanized clad steel pipe manufacturing process with relatively low manufacturing cost. [0004] In order to solve the above technical problems, the present invention adopts the following technical solutions: [0005] A manufacturing process of galvanized composite steel pipe...

Claims

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Application Information

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IPC IPC(8): B32B37/06B32B37/10B32B37/12
CPCB32B37/06B32B37/10B32B37/1207B32B37/1284B32B2037/1215B32B2309/02B32B2309/12B32B2597/00
Inventor 江锐
Owner 广汉市川西机电备件有限责任公司
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