Arc welding of copper
Are you interested in arc welding of copper rolled products? Supplier Evek GmbH offers to buy welded copper at an affordable price in a wide range. We will ensure the delivery of products to any point of the continent. The price is optimal.
When using carbon electrodes, there are sharp temperature changes between the individual sections. In view of the high thermal conductivity of copper, this causes significant stresses to occur, resulting in the appearance of cracks after welding. Therefore, welding with graphite electrodes is used only for connections of parts of considerable thickness.
Arc welding of copper with the use of electrode wire gives more stable results, but for this the composition of the coatings must fully correspond to the grade of copper. Otherwise, other elements may be present at the edges / boundaries of the seam, which will also cause residual stresses. The coating usually contains a dry charge, which is mixed with sodium silicate. The disadvantage of the method is the presence of pores in the finished seam.
The best results are given by welding under a layer of flux using a non-melting tungsten electrode. High-temperature ceramic compounds are introduced into the flux. Supplier Evek GmbH offers to buy welded copper of domestic and foreign production at an affordable price in a wide range. We will ensure the delivery of products to any point of the continent. The price is optimal.
Sequence of arc welding
The filler material is laid in the joint between the parts to be welded;
The electrode is sharpened in the form of a blade, in order to spread the heat from the arc more evenly;
The welding zone is covered with flux;
Turn on the current (polarity of the process is reverse), then first heat the welding zone with a short touch of the electrode, and then increase the current from the calculation: by 1 mm the thickness of the products is 75… 100 A;
Serve the filler wire. To maintain the required structural uniformity, this should be a copper wire of M0 or M1 grades. The speed of moving the electrode along the surface should be as high as possible, and not lower than 1 mm / s.
Buy. Supplier, price
Are you interested in arc welding of copper rolled products? Supplier Evek GmbH offers to buy welded copper at the manufacturer’s price. We will ensure the delivery of products to any point of the continent. The price is optimal. We invite you to partner cooperation.