Hot galvanizing system and hot galvanizing method

Abstract

The invention discloses a hot galvanizing system and a hot galvanizing method. The hot galvanizing system comprises a zinc pot (1) used for accommodating molten zinc, a feeding end and a discharging end. The hot galvanizing system is characterized in that a fixing support (9) is arranged in the zinc pot (1) and divides the interior of the zinc pot (1) into multiple stations which are sequentially arranged from the feeding end to the discharging end; the hot galvanizing system further comprises a lifting device (4) used for lifting metal parts corresponding to all the stations and a pushing device (6) used for moving the metal parts between the stations. By means of the technical scheme, the pushing device and the lifting device coordinate to enable the to-be-galvanized metal parts to be galvanized in a stepping mode, so that assembly line type production is achieved, automation is improved, operation is simplified, and the production efficiency is improved.

Description

technical field [0001] The invention relates to the field of hot-dip galvanizing, in particular to a hot-dip galvanizing system and a hot-dip galvanizing method. Background technique [0002] Hot-dip galvanizing is a process technology that immerses steel components in molten zinc solution to obtain a zinc coating, and is an effective metal anti-corrosion method. [0003] The formation process of the hot-dip galvanized layer is the process of forming an iron-zinc alloy between the iron substrate and the outermost pure zinc layer. The iron-zinc alloy layer is formed on the surface of the workpiece during hot-dip galvanizing, so that the iron and the pure zinc layer are very close. Good combination, the process can be simply described as: when an iron workpiece is immersed in molten zinc, a solid solution of zinc and α-iron (body center) is first formed on the interface. When zinc reaches saturation in the solid solution, the atoms of zinc and iron diffuse into each other, an...

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Problems solved by technology

[0004] The galvanizing methods of the existing hot-dip galvanizing production line have the following problems: (1) the main methods of hot-dip galvanizing adopt the rotary rake type and the spiral type, and usually its mechanical mechanism is relatively large and complicated, the degree of automation is not high, and the operation is cumbersome; 2) The hot-dip galvanizing system is usually open or semi-open, and the zinc fume generated during galvanizing cannot be effectively collected and recycled, causing pollution to the environment; (3) The zinc dross generated during the hot-dip galvanizing process has accumulated to a certain amount When it is necessary to stop the operation of the equipment and carry out the slag cleaning operation, the slag cleaning operation is heavy and complicated, which seriously affects the production efficiency

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