Method for manufacturing single-sided aluminium plating steel plate

A technology of steel plate and aluminum plating, applied in hot-dip plating process, coating, metal material coating process, etc., can solve the problems of complex process, low efficiency, high production cost, etc., and achieve simple operation, high efficiency and low cost low effect

Inactive Publication Date: 2009-07-08
HARBIN INST OF TECH
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to solve the problems of complex process, high production cost and low efficiency in the existing technology for preparing

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0007] Specific Embodiment 1: The preparation method of a kind of single-sided aluminized steel plate of this embodiment is carried out according to the following steps: 1. Two steel plates with the same size are stacked together, and the edges of the two steel plates are sealed and welded by welding method ; 2. Soak the steel plate whose edge has been sealed in lye solution at a temperature of 60-90°C for 10-30 minutes to degrease, then rinse with clean water to remove the residual lye on the surface; Soak in liquid for 2-6 minutes, wash with water and put in K at temperature 60-90℃ and mass concentration 2%-10%. 2 ZrF 6 Help plating in an aqueous solution for 1-5 minutes; then dry and preheat to 180-250°C, place in an industrial aluminum plating solution with a temperature of 700-750°C and a mass purity of 99.9% for 1-5 minutes, and then use 40 Raise at a speed of ~80mm / s, and cool; 3. Use the cutting method to cut the surrounding welds on the hot-dip aluminum-coated steel ...

specific Embodiment approach 2

[0008] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the steel plate in Step 1 of the preparation method is a carbon steel plate or an alloy steel plate. Other steps are the same as in the first embodiment.

specific Embodiment approach 3

[0009] Embodiment 3: This embodiment differs from Embodiment 1 and Embodiment 2 in that the welding method in step 1 of the preparation method can be argon arc welding, electrode arc welding, flame brazing, friction stir welding or resistance seam welding. Other steps are the same as those in Embodiment 1 and Embodiment 2.

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Abstract

The invention relating to a method of preparing aluminizing steel plates provides a method of preparing single-sided aluminizing steel plates for solving problems that the prior technique of preparing single-sided aluminizing steel plates has complex processes, high producing cost and low efficiency.The method of the invention comprises the following steps: 1. performing tight welding to the edges of two steel plates having a same size; 2. performing processes of oil removal, derusting, rinshing, assisted plating, drying and pre-heating to the steel plates with the edges tight-welded together, then aluminizing; 3. cutting the welded seam of the steel plates after being aluminized by using a cutting method to obtain two single-sided aluminizing steel plates. By using processes of welding, aluminizing and cutting, the single-sided aluminizing steel plates are produced without generating any influence on the other side, realizing single-sided aluminizing in real meanings and the operations are simple and the quality of the products are stable.

Description

technical field [0001] The invention relates to a method for preparing an aluminum-coated steel plate. Background technique [0002] The surface formed after the steel plate is aluminized not only has good corrosion resistance and oxidation resistance, but also significantly improves the brazing properties of the steel plate and aluminum parts, thus effectively promoting the development and development of welding technology for heterogeneous materials such as steel and aluminum. application. However, in order to achieve the brazing of steel and aluminum, it is only necessary to coat one side of the steel plate with aluminum, while the other side is preferably kept in its original state to meet other performance requirements. At present, the preparation methods of single-sided aluminum-coated steel sheets mainly include hot dip coating, hot pressing, and magnetron sputtering deposition. Among them, the hot-dip plating method is to immerse the entire steel plate in the alumi...

Claims

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Application Information

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IPC IPC(8): C23C2/12C23C2/02C23C2/26C23C2/40
Inventor 刘会杰黄永宪
Owner HARBIN INST OF TECH
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