Material for aluminumbronze surface laser cladding and laser cladding method

A laser cladding, aluminum bronze technology, applied in the direction of metal material coating process, coating, etc., to achieve the effect of improving mechanical properties, improving comprehensive performance, uniform and dense organization

Inactive Publication Date: 2008-09-03
LANZHOU UNIVERSITY OF TECHNOLOGY
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AI Technical Summary

Problems solved by technology

However, with the development of industry, traditional aluminum bronze alloys can no longer meet the requirements of application in some industries, and higher requirements are put forward for the performance of aluminum bronze materials.

Method used

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Embodiment Construction

[0007] The material for laser cladding on the surface of aluminum bronze according to the present invention has the following components by weight percentage: Cu 25.0-35.0%, Cr 11.5-14.5%, Zr 2.0-3.0%, B 2.5-3.5%, Si 2.5-3.0 %, Fe 5.5-6.5%, the balance is Ni, the above materials are all 100-300 mesh powder.

[0008] In the laser cladding method for aluminum bronze surface of the present invention, after the ingredients are prepared according to the above alloy components, the prepared alloy powder is put into a ball mill and mixed in the ball mill for 1-2 hours. According to the area of ​​laser cladding, weigh 0.02g~0.08g per square millimeter of the alloy powder after mixing evenly, and pre-place the alloy powder on the surface of aluminum bronze with acrylic resin, and wait for vacuum drying (40℃~70℃) for 30~ After 60 minutes, it was compacted by a press, and finally scanned by a laser beam. During laser cladding, the laser power was gradually reduced to scan the preset laye...

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Abstract

The invention relates to a material for laser cladding of an albronze surface and a laser cladding method. The material is composed of 25% to 35% by weight of Cu, 11.5% to 14.5% by weight of Cr, 2.0% to 3.0% by weight of Zr, 2.5% to 3.5% by weight of B, 2.5% to 3.0% by weight of Si, 5.5% to 6.5% by weight of Fe, and the balance Ni, the above materials are 100 to 300 mesh powder; the method comprises the following steps: preparing the materials in the above proportions, uniformly mixing the prepared materials, weighting the alloy powder in 0.02g to 0.08g per square millimeter according to the area of the laser cladding, presetting the alloy powder on the albronze surface by acrylics, compacting after vacuum drying (40 DEG C to 70 DEG C), scanning the preset layer by gradually reducing laser power with a speed of 6 to 8 millimeters per second and a spot diameter of 4 millimeters.

Description

technical field [0001] The present invention relates to metal surface treatment technology. Background technique [0002] Laser is a new light source discovered in the 1960s, which has the characteristics of high energy and good light focusing. Laser cladding technology is a novel surface modification technology developed based on the above characteristics. In recent years, with the emergence of high-power laser machines, laser cladding technology has also received more and more attention, but it is mainly concentrated on ferrous metals, aluminum alloys, titanium alloys and other substrates. Laser cladding on copper alloys is still very common. Laser cladding on aluminum bronze has not yet been found, but aluminum bronze alloys have good friction properties, corrosion resistance, easy plastic processing and other properties, which make them more and more widely used in modern industry. Such as wear parts that are widely used in machinery, aircraft and automobile manufactur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C30/02C23C24/10
Inventor 徐建林杨波
Owner LANZHOU UNIVERSITY OF TECHNOLOGY
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