To understand the quality requirements of welding robot for welding wire, first of all, we should know that this yellow thing is actually the impurities in the welding wire and welding base metal, mainly the high-temperature oxidation of silicon and manganese in the welding process, which reacts with CO2 in the shielding gas and decomposes into oxides formed by silicon oxide and manganese oxide, which is a bit like the welding slag during manual electrode welding. Although these phenomena can even be made by welding robots, these oxides have no adverse impact on the welding quality except for a little defect in appearance, and can be easily removed by brush.
Cylinder or disc welding wire can be selected as required. In order to reduce the frequency of welding wire replacement, the robot should choose barreled welding wire. However, due to the use of barreled welding wire, the length of wire feeding hose is large, the resistance is large, and the quality requirements such as welding wire stiffness are high.
It not only has the advantages of high energy rate and stable efficiency, but also has good flexibility. Even in the most complex environment, it can ensure the stable and high-energy operation of the welding robot. It is closely related to the composition of the equipment, including the main body, welding power supply, one-dimensional heavy slide, robot l-arm, gun cleaning shear, control system, etc.
The phenomenon of how many silicon and manganese elements are in the parent metal elements of welding will certainly exist. To reduce these oxides, the welding wire with less silicon and manganese elements can be selected, and the shielding gas can be replaced with the mixture with less CO2 content, so that there will be less oxides and yellow spots.
In case of welding wire with poor copper plating quality, the copper plating on the surface of the welding wire will reduce the volume in the conduit due to friction and falling off, increase the resistance during high-speed wire feeding, the welding wire cannot be sent out smoothly, and the resulting jitter will make the arc unstable, thus affecting the welding quality. In serious cases, the robot is stuck and stops running. Therefore, the welding wire pipe shall be cleaned in time.