The roll welding technology of stainless steel wire mesh, also known as seam welding, uses a pair of roller electrodes to replace the spot welding cylindrical electrode. The welded workpiece moves between the rollers, creating a sealed weld seam with overlapping nuggets to weld the workpiece Way up. Generally, AC pulse current or amplitude modulation current is used, and three (single) phase rectification, intermediate frequency and high frequency DC current can also be used. Roll welding is widely used in stainless steel round hole screens, stainless steel filter screens (such as multi-layer petroleum sand control pipes), butt joints or seams of stainless steel wire mesh with a higher mesh count.
The argon arc welding process is the most commonly used welding process in stainless steel mesh deep-processing products. Argon arc is a gas shielded welding technique. Is to pass around the arc welding
The protective gas argon is used to isolate the air from the welding area and prevent the oxidation of the welding area to achieve the purpose of double-sided forming. Its technical characteristics are that the back of the weld bead is filled with argon, small current (generally welding current is about 60A, the current can be manually adjusted), short arc (arc voltage is below 10V, the voltage is generally not adjustable), the welding process swing should use zigzag Method, the interlayer temperature is as far as possible, the color of the weld is white and yellow as the standard, the angle of the argon arc welding torch is 90 degrees and below in the advancing direction, and the gap between the mouths is controlled at about 2mm.
Welded stainless steel wire mesh, stainless steel welded wire mesh, stainless steel welded wire mesh, etc., it is produced by fully automatic stainless steel welding machine. The production of stainless steel welded wire meshes uses the principle of resistance welding to complete the welding of stainless steel nets: the circuit is closed, making the entire closed circuit and current equal at all places; but the resistance is different everywhere, especially where the contact is not fixed. The resistance at the stigma of the welded wire mesh machine is the largest. This resistance is called contact resistance in physics. According to the thermal effect law of electric current (also known as Joule's law), Q = I ^ 2; × Rt. It can be known that when the current is equal, the part with greater resistance generates more heat, and the resistance of the stigma during welding is the largest. The electric heat generated by the part is naturally the most. When the stigma presses the horizontal and vertical diameters together, it releases a lot of heat, which makes the horizontal and vertical diameters instantly dissolve and bond. Since the automatic row welding machine is performed in a row of stigmas at the same time, the production efficiency of electric welding stainless steel wire mesh is extremely high.
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