Magnesium alloy surface treatment method

A surface treatment and magnesium alloy technology, which is applied in metal material coating process, fusion spraying, coating, etc., can solve the problems of complex equipment, non-wear resistance, and increased cost of magnesium alloy use, so as to improve elongation and extrusion The effect of increasing the pressing speed, improving room temperature and high temperature performance, and reducing heat sensitivity

A surface treatment and magnesium alloy technology, which is applied in metal material coating process, fusion spraying, coating, etc., can solve the problems of complex equipment, non-wear resistance, and increased cost of magnesium alloy use, so as to improve elongation and extrusion The effect of increasing the pressing speed, improving room temperature and high temperature performance, and reducing heat sensitivity

CN104805345AInactive Publication Date: 2015-07-29SUZHOU TONGMING MACHINERY
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] This embodiment provides a surface treatment method for magnesium alloys. The surface treatment method includes three stages, namely a pretreatment stage, a spraying stage and a post-spraying treatment stage, wherein:

[0038] (1) Preprocessing stage:

[0039] Grind the selected magnesium alloy plate with sandpaper, then clean the polished surface with acetone, and then dry it naturally. After drying, carry out sandblasting roughening treatment on the surface of the magnesium alloy plate. : Use a sandblasting machine to evenly spray brown corundum sand on the surface of the magnesium alloy plate, wherein: the pressure of the sandblasting machine is 1.4MPa, the compressed air is dry and oil-free; the particle size of the brown corundum sand is No. 10, and the brown corundum sand is clean and dry No oil, spray the magnesium alloy plate with compressed air after sandblasting, then clean the surface of the magnesium alloy plate with acetone again, after natural drying, heat...

Embodiment 2

[0057] This embodiment provides a surface treatment method for magnesium alloys. The surface treatment method includes three stages, namely a pretreatment stage, a spraying stage and a post-spraying treatment stage, wherein:

[0058] (1) Preprocessing stage:

[0059] Grind the selected magnesium alloy plate with sandpaper, then clean the polished surface with acetone, and then dry it naturally. After drying, carry out sandblasting roughening treatment on the surface of the magnesium alloy plate. : Use a sandblasting machine to evenly spray brown corundum sand on the surface of the magnesium alloy plate, wherein: the pressure of the sandblasting machine is 1.2MPa, the compressed air is dry and oil-free; the particle size of the brown corundum sand is No. 10, and the brown corundum sand is clean and dry No oil, spray the magnesium alloy plate with compressed air after sandblasting, then clean the surface of the magnesium alloy plate with acetone again, dry it naturally, heat the...

Embodiment 3

[0077] This embodiment provides a surface treatment method for magnesium alloys. The surface treatment method includes three stages, namely a pretreatment stage, a spraying stage and a post-spraying treatment stage, wherein:

[0078] (1) Preprocessing stage:

[0079] Grind the selected magnesium alloy plate with sandpaper, then clean the polished surface with acetone, and then dry it naturally. After drying, carry out sandblasting roughening treatment on the surface of the magnesium alloy plate. : Use a sandblasting machine to evenly spray brown corundum sand on the surface of the magnesium alloy plate, wherein: the pressure of the sandblasting machine is 1.6MPa, the compressed air is dry and oil-free; the particle size of the brown corundum sand is No. 10, and the brown corundum sand is clean and dry No oil, spray the magnesium alloy plate with compressed air after sandblasting, then clean the surface of the magnesium alloy plate with acetone again, dry it naturally, heat the...

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Abstract

The invention discloses a magnesium alloy surface treatment method which comprises three stages including a pretreatment stage, a spraying stage and an after-spraying treatment stage. By adoption of a compound spraying method, an anti-corrosion and anti-abrasion coating layer which is high in bonding strength, high in compactness and small in environment pollution is formed on the magnesium alloy surface; the surface treatment method is simple and feasible and is low in cost.

Description

technical field [0001] The invention belongs to the thermal spraying field of material processing engineering, and relates to a magnesium alloy surface treatment method for forming a corrosion-resistant and corrosion-resistant coating on the surface of the magnesium alloy by using a thermal spraying method. Background technique [0002] China is the country with the most abundant magnesium resources in the world. The proven reserves of magnesite account for about 1 / 4 of the world, and it has the inherent basic conditions for the development of the magnesium industry. In addition, China is not only a big country in motorcycle production, consumption and export, It is also a big automobile production and consumption country, and the market application prospect of magnesium and magnesium alloy products is broad; the biggest disadvantage of ordinary magnesium alloy is that it is easy to oxidize and burn during melting and forming, which makes the smelting of magnesium alloy very ...

Claims

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Application Information

Patent Timeline
29 Jul 2015
Publication
CN104805345A
IPC
C22C23/02; C23C4/08; C23C4/10; C23C4/12; C23C4/18
CPC
C22C23/02; C23C4/10; C23C4/18
Inventors
吴明; 黄世宇