Northern area electrogalvanizing production phosphorization process method

Abstract

The invention discloses a northern area electrogalvanizing production phosphorization process method. The process method comprises the following steps of an inlet coil feeding system, pre-cleaning, anentry loop, a tension straightening machine, a cleaning section, electrogalvanizing, a rinsing section, an activation section, a phosphorization section, drying, a coating machine, drying and cooling, an outlet loop, vertical check, an electrostatic oiler, an outlet shear, a coiling machine, an outlet coil discharging system, bundling and weighing. At present, through the northern area electrogalvanizing production phosphorization process method, a benxi steel electrogalvanizing unit has repeatedly produced electrogalvanized and phosphorized products on large scale in mass production withoutbeing affected by seasons any longer, and huge economic benefits are contributed to Benxi Steel.

Description

technical field [0001] The invention relates to the technical field of metallurgy, in particular to a phosphating process for electrogalvanizing production in the northern region. Background technique [0002] In the northern region, only Benxi Iron and Steel's electro-galvanizing has the equipment conditions for producing phosphating automobile sheets. Due to the low winter temperature in the north (often below 0°C) and the influence of technology, electro-galvanizing and phosphating automobile sheets have not been able to be produced continuously on a large scale. At present, the problem of uneven thickness of the phosphating film is caused by manual addition; the phosphating solution and the activation solution will also cause pollution; according to the cold weather in the north, the temperature of the phosphating solution cannot be guaranteed, which will lead to uneven phosphating film Film formation; during the production process, phosphating spots will appear on the l...

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Problems solved by technology

[0002] In the northern region, only Benxi Iron and Steel's electro-galvanizing has the equipment conditions for producing phosphating automobile sheets. Due to the low winter temperature in the north (often below 0°C) and the influence of technology, electro-galvanizing and phosphating automobile sheets have not been able to be produced continuously on a large scale.

At present, the problem of uneven thickness of the phosphating film is caused by manual addition; the phosphating solution and the activation solution will also cause pollution; according to the cold weather in the north, the temperature of the phosphating solution cannot be guaranteed, which will lead to uneven phosphating film Film formation; phosphating spots appear on the lower and upper surfaces of the strip during production

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