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Accelerator for mechanical zinc-aluminum-magnesium alloy coating

A mechanical galvanizing and magnesium alloy technology, applied in the direction of pressure inorganic powder coating, etc., can solve the problems of difficult surface activation control of alloy powder, dispersion of alloy powder, difficult control of adsorption deposition, and inability to produce alloy powder adsorption deposition, etc., to achieve The effect of convenient procurement and convenient source of raw materials

Active Publication Date: 2021-08-10
阳江市超耐精饰表面处理技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, zinc powder is fundamentally different from aluminum powder, magnesium powder, and zinc-based alloy powder in chemical composition, surface activity, and electrode potential. Using traditional mechanical galvanizing technology and accelerators or additives, zinc-based alloy powder is used as A large number of alloying mechanical plating tests have shown that it is difficult to obtain a satisfactory zinc-based alloy layer on the surface of steel parts; the reason is that the surface activation of the alloy powder is difficult to control, and the dispersion, adsorption, and deposition of the alloy powder in the plating solution It is difficult to control and cannot produce effective adsorption deposition of alloy powder on the surface of the workpiece

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The mechanical galvanized-aluminum-magnesium alloy coating accelerator described in the present embodiment contains the following components in mass percent:

[0027] Oxalic Acid 10%

[0028] Magnesium lignosulfonate 5%

[0029] Sodium Fluoroaluminate 15%

[0030] Stannous Sulfate 30%

[0031] Sodium Stearate 2%

[0032] Potassium stannate 2%

[0033] coconut shell powder balance

[0034] Above raw material is commercially available industrial grade chemical raw material, and the zinc-aluminum-magnesium alloy powder that adopts during plating is the Zn-8%Al-4%Mg atomized alloy powder ( The particle size is about 20 μm).

[0035] First, weigh coconut shell powder according to the mass percentage of the above-mentioned raw materials, then mix other components weighed according to the calculated amount into the coconut shell powder, mix evenly, seal and pack for use.

[0036] The accelerator described in this embodiment is used for the preparation of mechanical galv...

Embodiment 2

[0050] The mechanical galvanized-aluminum-magnesium alloy coating accelerator described in the present embodiment contains the following components in mass percent:

[0051] Oxalic Acid 25%

[0052] Magnesium Lignosulfonate 12%

[0053] Sodium oxalate 15%

[0054] Stannous chloride 20%

[0055] Sodium lignosulfonate 8%

[0056] Sodium stannate 5%

[0057] coconut shell powder balance

[0058] Above raw material is commercially available industrial grade chemical raw material, and the zinc-aluminum-magnesium alloy powder that adopts during plating is the Zn-8%Al-4%Mg atomized alloy powder ( The particle size is about 20 μm).

[0059] First, weigh coconut shell powder according to the mass percentage of the above-mentioned raw materials, then mix other components weighed according to the calculated amount into the coconut shell powder, mix evenly, seal and pack for use.

[0060] The accelerator described in this embodiment is used for the preparation of mechanical galvani...

Embodiment 3

[0074] The mechanical galvanized-aluminum-magnesium alloy coating accelerator described in the present embodiment contains the following components in mass percent:

[0075] Oxalic Acid 12%

[0076] Magnesium lignosulfonate 8%

[0077] Sodium Fluoroaluminate 9%

[0078] Stannous Sulfate 25%

[0079] Sodium lignosulfonate 5%

[0080] Potassium stannate 5%

[0081] coconut shell powder balance

[0082] Above raw material is commercially available industrial grade chemical raw material, and the zinc-aluminum-magnesium alloy powder that adopts during plating is the Zn-8%Al-4%Mg atomized alloy powder ( The particle size is about 20 μm).

[0083] First, weigh coconut shell powder according to the mass percentage of the above-mentioned raw materials, then mix other components weighed according to the calculated amount into the coconut shell powder, mix evenly, seal and pack for use.

[0084] Accelerator described in the present embodiment is used for the mechanical galvanized-...

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Abstract

The invention discloses an accelerator for mechanical zinc-aluminum-magnesium alloy coating, which belongs to the technical field of surface protection of iron and steel parts and is used for preparing zinc-aluminum-magnesium alloy mechanical coating on the surface of iron and steel parts. The accelerator for mechanical galvanizing-aluminum-magnesium alloy coating of the present invention consists of 10%-25% by mass of oxalic acid, 5%-12% of magnesium lignosulfonate, 6%-15% of sodium fluoroaluminate, divalent 20%-30% of tin salt, 2%-8% of sodium stearate, 1%-5% of stannate and the balance of coconut shell powder. The accelerator for mechanical galvanizing-aluminum-magnesium alloy coating of the present invention is a powdery mixture, which is added directly during use, and the addition amount is 30% to 60% of the added mass of zinc-aluminum-magnesium alloy powder; Continuous and stable deposition of aluminum-magnesium alloy powder on the surface of iron and steel parts to obtain a better quality zinc-aluminum-magnesium alloy coating.

Description

technical field [0001] The invention relates to an accelerator for mechanical zinc-aluminum-magnesium alloy coating, which belongs to the technical field of surface protection of iron and steel parts and is used for mechanical plating of zinc-aluminum-magnesium alloy on the surface of iron and steel parts. Background technique [0002] With the continuous improvement of industrial products' requirements for coating quality, the traditional single galvanized coating is difficult to meet the needs of the hardware industry, which provides a good opportunity for the development and application of mechanically plated alloy coatings. Although the metal zinc coating on the steel substrate can provide excellent corrosion resistance, it is still difficult to meet the harsh requirements of long-term heavy-duty anti-corrosion for outdoor steel products. In the 1970s, new alloy coatings appeared continuously, such as Galfan (containing 5% Al) coatings and Galvalume (containing 55% Al) c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C24/02
Inventor 熊业军王意忠苏业平唐刚王胜民
Owner 阳江市超耐精饰表面处理技术有限公司
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