Production technology and device of galvanized welded steel pipe

A production process and technology for welding steel pipes, which are applied in hot-dip plating process, metal material coating process, coating and other directions, which can solve the problems of cumbersome steel pipes and zinc film in galvanizing pools, and achieve convenient operation and easy galvanizing. Effect

Active Publication Date: 2020-11-17
山东承泽金属科技有限公司
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Problems solved by technology

[0005] In order to solve the above technical problems, a production process and device for galvanized welded steel pipes are provided. This technical solution solves the problem that the hanger suspends the steel pipes cumbersomely, and there is a zinc film on the surface of the galvanizing pool.

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  • Production technology and device of galvanized welded steel pipe
  • Production technology and device of galvanized welded steel pipe
  • Production technology and device of galvanized welded steel pipe

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Embodiment Construction

[0047] The following description serves to disclose the present invention to enable those skilled in the art to carry out the present invention. The preferred embodiments described below are only examples, and those skilled in the art can devise other obvious variations.

[0048] refer to figure 1 Shown, a kind of production technology of galvanized welded steel pipe comprises the following steps,

[0049] Step 1: Suspension horizontally, suspend the rigid pipe horizontally on the rotary hanger, and fix the two sides of the top of the hanger through the suspension machine;

[0050] Step 2: pickling, place the hanger in the pickling tank by the suspension machine until the pickling liquid is completely submerged in the steel pipe, close the upper protective cover 8 of the pickling tank, and put the steel pipe in the pickling tank for a period of time , so as to remove the oxide layer on the surface of the steel pipe, so as to facilitate galvanizing;

[0051] Step 3: Remove t...

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Abstract

The invention relates to the technical field of galvanized steel pipe production, in particular to a production technology and device of a galvanized welded steel pipe. The production technology comprises the following steps: S1, horizontal suspension: horizontally suspending a steel pipe on a rotary hanging bracket; S2, acid pickling: adopting a hanging machine to place the hanging bracket in a pickling bath; S3, acid liquor removing, suspending a rotary crane on the top of the pickling bath through the suspension machine, and starting the rotary hanging bracket to enable the steel pipe to rotate in an aeration water tank; S4, water removing: suspending the rotary hanging bracket on the top of the aeration water tank through the suspension machine, and starting the rotary hanging bracketto enable residual water on the surface of the steel pipe to fall into the aeration water tank to prevent the residual water from diluting the galvanizing solution; galvanization, adopting a suspension frame to place the rotary hanging bracket in a hot galvanizing bath; and removing zinc liquid, and starting a zinc film remover. The galvanized steel pipe manufactured through the production technology is higher in quality and high in automation degree.

Description

technical field [0001] The invention relates to the technical field of galvanized steel pipe production, in particular to a production process and device for galvanized welded steel pipes. Background technique [0002] Galvanizing refers to a surface treatment technology that coats a layer of zinc on the surface of metals, alloys or other materials for aesthetics and anti-rust effects. The main method used is hot-dip galvanizing. Zinc is easily soluble in acid and alkali, so it is called amphoteric metal. Zinc hardly changes in dry air. In humid air, a dense basic zinc carbonate film will be formed on the surface of zinc. In the atmosphere containing sulfur dioxide, hydrogen sulfide and marine atmosphere, the corrosion resistance of zinc is poor, especially in the atmosphere of high temperature, high humidity and organic acid, the zinc coating is easily corroded. For the steel substrate, the zinc coating is an anodic coating, which is mainly used to prevent the corrosion ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C2/02C23C2/06C23C2/38C23C2/14
CPCC23C2/02C23C2/06C23C2/38C23C2/14Y02P10/20
Inventor 王迁
Owner 山东承泽金属科技有限公司
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