Laser repairing technology for aluminum foil roll crack

A technology of laser repair and rolling, which is applied in laser welding equipment, metal material coating technology, manufacturing tools, etc., can solve problems such as poor effect, and achieve good wear resistance, good uniformity of structure, and high fusion rate.

Inactive Publication Date: 2012-09-19
DANYANG HONGTU LASER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Due to the deep cracks of the aluminum foil roll, the effect of ordinary laser cladding process is not good when filling the cracks

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] The specific steps of the laser repair process of the aluminum foil roll crackle of the present embodiment are as follows:

[0016] A. Clean the roll to be repaired.

[0017] Remove the dust, oil, rust, etc. on the roll; detect the size of each part of the roll, determine the failure position and its wear amount; check the radial and end runout of the roll to check whether the roll is deformed; use the angle grinding wheel to check the roll Grinding and cleaning the cracks, right angles or peeling layers until there are no crack defects.

[0018] B. Preheat the roll at low temperature, the preheating temperature is 200°C.

[0019] C. Optimize the process parameters and perform laser cladding on the pits that have been polished and cleaned on the roll. During this process, keep hitting the roll with a small mallet to make the roll vibrate to eliminate welding stress, and keep the temperature of the roll at 180°C to 250°C until the pits are filled and the cladding layer...

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Abstract

The invention relates to a laser repairing technology for an aluminum foil roll crack. The laser repairing technology for the aluminum foil roll crack comprises the following steps: A, cleaning up a roll; B, preheating the roll at a low temperature; C, optimizing technical parameters, and performing laser cladding on polished and cleaned pits on the roll, wherein in the process, the roll is vibrated, the temperature of the roll is kept to be 180-250 DEG C until the pits are filled, a cladding layer is higher than the roll surface, and used alloy powder comprises the following components by weight percent: 10-15% of Cr, 1-2% of B, 0.5-1.5% of Si and Fe in balancing amount; and D. detecting. The laser repairing technology for the aluminum foil roll crack can perform laser cladding on the roll crack and can effectively fill a very deep crack to making the deep crack meet a using requirement; the structural uniformity of the cladding layer is good; and the fusion rate of the cladding layer and a matrix is high.

Description

technical field [0001] The invention relates to a laser cladding method, in particular to a laser cladding repair method for roll cracks. Background technique [0002] In recent years, as aluminum foil materials are widely used in cigarette packaging, decoration, trademarks, food preservation and preservation, electronic components and pharmaceutical industries, the demand is increasing year by year, so that aluminum foil processing equipment also has a higher service life Require. Due to the use conditions and environment of the aluminum foil roll, the surface hardened layer peels off or cracks caused by the high fatigue of the roll body during use, and the crack depth can reach 20mm, resulting in the failure of the roll and making it unusable. If the new roll is directly replaced, the cost of equipment and products will be greatly increased. Due to the extremely high surface hardness of the quenching roll, defects such as cracks, pores, and insufficient hardness will eas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C24/10B23K26/34
Inventor 邓琦林刘少彬刘汉杰何建方
Owner DANYANG HONGTU LASER TECH
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