Judgment method for evaluating influence of surface roughness of wire rod on surface quality of welding wire
A technology of surface roughness and surface quality, applied in the field of judging the influence of wire rod surface roughness on the surface quality of welding wire, can solve the problems affecting copper plating, polishing, surface defects, and spattering of finished welding wire, etc. Simple operation and the effect of improving production efficiency
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Embodiment 1
[0037] Select A1 wire rod, and use a new soft brush to brush once along the direction perpendicular to the wire rod axis, so that the surface of the wire rod is distributed with rough and uneven surfaces perpendicular to the wire rod axis.
[0038] Randomly cut the wire rod with a length of 50 mm, use the German Zeiss scanning electron microscope to scan the sample wire rod with SEM, use 1000 times magnification to observe the surface of the wire rod, and take the area of length L1 of 60 μm and width W1 of 60 μm along the axis direction, the area ST is 60μm×60μm=3600μm 2 Analyze the area, within the range taken, integrally measure the area SRi of each rough and uneven part, SRi represents the area of the rough part in the observation area, and the variable i refers to different rough parts;
[0039] W i Represents the weight coefficient of the effect of the quality of the finished welding wire being affected by the rough parts on the surface of the wire rod, W i The larg...
Embodiment 2
[0052] Select A2 wire rod, and use a new soft iron brush to brush once parallel to the axial direction of the wire rod, so that the surface of the wire rod is distributed with rough and uneven surfaces parallel to the axial direction of the wire rod. Randomly cut wire rods with a length of 50 mm, use a German Zeiss scanning electron microscope to scan the sample wire rods with a SEM, use 1000 times magnification to observe the surface of the wire rods, and randomly take the area where the length L1 is 60 μm and the width W1 is 60 μm along the axial direction, the area ST 60μm×60μm=3600μm 2 Analyzing the area, within the selected range, integrally measuring the area SR of each rough and uneven part i , SR i Represents the area of the rough part in the observation area, the variable i refers to different rough parts; the total area of the analysis surface ST = 3600μm 2 .
[0053] W i Represents the weight coefficient of the effect of the quality of the finished welding w...
Embodiment 3
[0066] Choose A3 wire rod, cut the wire rod with a length of 40mm at will, use the German Zeiss scanning electron microscope to scan the sample wire rod with SEM, and use 1000 times magnification to observe the surface of the wire rod. For a 60μm area, the area ST is 60μm×60μm=3600μm 2 Analyzing the area, within the selected range, integrally measuring the area SR of each rough and uneven part i , SR i Represents the area of the rough part in the observation area, the variable i refers to different rough parts; the total area of the analysis surface ST = 3600μm 2 .
[0067] W i Represents the weight coefficient of the effect of the quality of the finished welding wire being affected by the rough parts on the surface of the wire rod, W i The larger the value, the greater the influence of the rough part on the quality of the finished welding wire produced in the subsequent production, W i The smaller the , the less impact the rough part has on the quality of the finishe...
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Abstract
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