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Batch hot-dip efficient environment-friendly continuous plating process and equipment

A hot-dip and process technology, applied in hot-dip plating process, metal material coating process, coating and other directions, can solve the problems of difficult to achieve continuous high-efficiency production, long waiting time for batch hot-dip plating, low work efficiency, etc. Shorten working time, reduce waiting time, and produce efficient results

Pending Publication Date: 2021-06-11
TIANJIN GONGDA GALVANIZING EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the low production efficiency, long waiting time for batch hot-dip galvanizing, cumbersome operation, relatively low work efficiency and difficulty in achieving continuous and efficient production in the existing batch hot-dip galvanizing, the present invention provides a high-efficiency and environment-friendly continuous batch hot-dip galvanizing Plating process and equipment

Method used

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  • Batch hot-dip efficient environment-friendly continuous plating process and equipment
  • Batch hot-dip efficient environment-friendly continuous plating process and equipment
  • Batch hot-dip efficient environment-friendly continuous plating process and equipment

Examples

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Embodiment 1

[0042] The product to be hot-plated in this embodiment is scaffolding for construction, and its grade is Q235 (chemical composition: C0.14-0.22% Mn0.30-0.65% Si≤0.30%S≤0.050P≤0.045).

[0043] Before the present invention was made, the crane linear reciprocating plating process was usually used for batch galvanizing of structural parts; it was necessary to unload the workpiece after galvanizing in the pre-treatment process, and then the crane returned to the starting area to load the next batch The hot-dip plating; and the scaffold uses inorganic acids such as hydrochloric acid for pickling and rust removal, and the acid mist generated in the pre-treatment process will pollute the environment, and the waste acid needs further post-treatment; therefore, the use of environmentally friendly organic acids for rust removal It is imperative to replace the traditional pickling with chemical agent. In addition, compared with the linear reciprocating plating process, the circular continu...

Embodiment 2

[0049] The workpiece that present embodiment adopts is still building scaffolding, and the difference with embodiment 1 is that the coating material of this embodiment is not pure zinc but Galfan alloy (Zn-5Al%-Re), but its specific implementation is the same as embodiment 1.

[0050] According to the process flow, the raw material blanks are loaded in batches on the electric floor truck in the feeding area, and the loaded workpieces are transported by the electric floor truck to the bottom of the circular track in the feeding area, and are mounted by the electric hoist on the circular track. , followed by degreasingwater washingpicklingwater washing→plating help→drying→hot-dip galvanizing→water coolingpassivation→unloading and other operations; it is characterized in that there are four sets of electric hoists on the circular track. After the electric hoist is loaded and enters the next process, the next group of electric hoists automatically enters the loading area penda...

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Abstract

The invention relates to a batch hot-dip efficient environment-friendly continuous plating process and equipment. The process involves a feeding area, a pre-treatment area, a dip plating area, a post-treatment area and a discharging area in sequence according to the process flow. The continuous plating process adopts an annular track, the annular track is provided with an electric conveying device, and transfer is of no need in the whole process flow. Material conveying at all the areas is completed on the same annular track, multiple sets of electric hoists with different starting moments are arranged in the feeding area, the materials on the different electric hoists enter the annular track according to the time difference, and continuous circulating plating of batched pieces is achieved. According to the batch hot-dip efficient environment-friendly continuous plating process and equipment, the annular plating process is adopted, so that the continuous operation without stopping and turning back is realized, the operation process is simplified, the waiting time of batch zinc plating is shortened, the continuous production from feeding to discharging is realized, the production efficiency is greatly improved, the advantages of energy conservation, consumption reduction, high production efficiency, small occupied area, energy conservation and emission reduction, environmental protection and the like are achieved, and the production benefits of an enterprise are increased.

Description

technical field [0001] The invention relates to the technical field of batch hot-dip plating in the metallurgical industry, and specifically relates to a high-efficiency and environment-friendly continuous plating process and equipment for batch hot-dip plating. Background technique [0002] Galvanizing on the surface of steel is one of the commonly used steel anticorrosion technologies in the world. It can provide both physical barrier protection and sacrificial anode protection for the steel substrate. With the development of the national economy, the demand for hot-dip galvanizing for some important steel structural parts is increasing. In addition to continuous hot-dip galvanizing such as steel wires, the proportion of batch hot-dip galvanized structural parts in the fields of electric power, transportation, photovoltaic supports, communications, municipal engineering, marine structures, bridges, and buildings has shown a strong growth. Hot-dip galvanizing technology is...

Claims

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Application Information

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IPC IPC(8): C23C2/06C23C2/26C23C2/34C23C2/02
CPCC23C2/003C23C2/06C23C2/02C23C2/26C23C2/34
Inventor 李铁喜董忠李冲冲杜意军
Owner TIANJIN GONGDA GALVANIZING EQUIP CO LTD
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