informations

Butt welding circuit

Butt welding circuit is a process of resistance welding, in which a permanent connection between the objects tightening closely is obtained on the entire contact surface, because the area is heated resistance by electricity flowing, plastically deformed after reaching a suitable sealing temperature. The weld area is heated to a plastic deformation or to temperatures above the melting point. The contact surfaces of heated objects must be cleaned and adhere to each other.
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Resistance flash welding

Welded elements arranged so that they touch the end faces. In the process of butt welding spark can be divided into the following steps: preheating, sparking-out, upsetting. Heating is performed at low pressure. After the connection is warmed, there is a stage of sparking out, in which material of connection surface is fired, thereby resulting in a smooth, clean surface.
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Resistance spot welding

Spot welding allows you to connect to the tab sheets in a suitably spaced points. Sheets are pressed each other with help of conductive electrodes claw. At the point of compression of the material sheet by the passage of current warms up and combined together. Spot welding is the most common method of resistance welding...
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Resistance seam welding

Seam welding is a method of connecting, in which the metal parts of the link is formed by a number of spot welds formed in the liquid state, arranged side by side along a specified line by using a welding wheel which lead electricity and exert pressure welding. Depending on the kinetics of the electrodes movement, the pulse current waveform and its duration, linear resistance welding can be divided into: constant, intermittent, jumping...
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Resistance projection welding

The weld is formed at the point of contact, specially shaped for the working material. For example, the contact point (hump) may be a bulge or ring or elongated projections technology. Connecting elements can be carried out simultaneously in several points. Sufficiently large electrodes include all the points that have to be welded in one operation. Butt or folded joints are created...
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Friction welding

Friction welding is a process in which the heat necessary for the implementation of a permanent connection originated from the direct conversion of mechanical energy into heat energy through friction in the interface between the welded objects...
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