Galvanized welded pipe surface antirust processing method

A technology for anti-rust treatment and welded pipes, which is applied to special surfaces, pretreated surfaces, and devices for coating liquids on surfaces, etc., can solve the problems of increasing the processing cost of galvanized welded pipes, reducing production efficiency, and taking a long time to achieve the processing cost. Low, time-consuming, fast drying effect

Inactive Publication Date: 2014-03-05
芮叶彬
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

However, the oil drying process is very troublesome and takes a long time, which not only increases the processing cost of galvanized welded pipes, but also reduces production efficiency, which is not worth the candle

Method used

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Embodiment Construction

[0015] The present invention is described in further detail below in conjunction with embodiment.

[0016] The antirust treatment method for the surface of galvanized welded pipe of the present invention comprises the following steps.

[0017] The first step is to use heating equipment to heat the compressed air so that the temperature of the compressed air rises to 100~600°C, and the pressure of the compressed air is 3~15MPa. Wherein, the heating device may be an electric heating wire, an electric heating pack, etc., and also includes any other device capable of heating the gas.

[0018] The second step is to use pipelines to introduce high-temperature compressed air into the galvanized welded pipe production line, and perform multi-directional surface blowing of the finished galvanized welded pipes that have completed the sizing process to remove cooling water on the surface of the galvanized welded pipes.

[0019] The third step is to use spray equipment to spray the envir...

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Abstract

The invention relates to a galvanized welded pipe surface antirust processing method which is characterized by including: using high-temperature compressed air to perform water removing treatment on a finished galvanized welded pipe after sizing, using a spraying device to spray environment-friendly antirust agent on the surface of the galvanized welded pipe, and using the high-temperature compressed air to dry the environment-friendly antirust agent on the surface of the galvanized welded pipe to allow a layer of environment-friendly antirust agent protecting film to form on the surface of the galvanized welded pipe. The galvanized welded pipe processed by the method is basically free of viscosity on the surface, surface tidiness of the galvanized welded pipe is unaffected, environments are not polluted, and direct use can be achieved. In addition, the method is short in time consumption and low in machining cost, and production efficiency of the galvanized welded pipe is unaffected.

Description

technical field [0001] The invention relates to a process for processing galvanized welded pipes, in particular to a method for performing surface antirust treatment on finished galvanized welded pipes after the sizing process. Background technique [0002] As we all know, in the manufacturing process of galvanized welded pipe, after the sizing process is completed, there will be a large amount of cooling water remaining on the surface of galvanized welded pipe. Therefore, it is necessary to carry out antirust treatment on the surface of the galvanized welded pipe, so as to ensure that the surface of the galvanized welded pipe will not be rusted during subsequent processing, transportation or storage. [0003] The traditional antirust treatment method for the surface of galvanized welded pipes is to spray or immerse the galvanized welded pipes after sizing. Since oil and water cannot dissolve, part of the water on the surface of the galvanized welded pipe can be removed dur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D5/00B05D3/04
Inventor 芮叶彬张晨辉
Owner 芮叶彬
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