Welding of rolled steel

Are you interested in welding steel rolls? Supplier Avlob offers to buy roll steel at a bargain price. The supplier guarantees the timely delivery of products to any address in Europe or abroad. Regular customers receive a discount discount. The price is the best in this segment.

Surfacing of rolls

All rolls are characterized by poor weldability. Especially difficult to weld volumetric rolled metal. Given the wear characteristics of the rolling roll with a uniform abrasion of their contact surfaces, it is much more often not welding, but surfacing of the rolling surface. On the worn working surface, a layer of molten metal of the same chemical composition is applied, the height of which will ensure (taking into account the allowance for subsequent processing) the restoration of the roll size to the originally required ones.

Varieties of surfacing

• Gas;
• Electric arc (can be made in manual, semi-automatic or automatic modes);
• Electroslag;
• High-frequency currents;
• Plasma;
• Electroimpulse.

Supplier Avlob offers to buy roll steel at a bargain price. The price is the best in this segment of rental.

Surfacing technology

The metal deposited on the working surfaces of the rolls must have a high impact strength, wear resistance, and for hot rolling rolls, it also has a heat resistance. Before surfacing, the roll surface is thoroughly cleaned of dirt, as well as traces of grease and oxides. To accelerate the burning of oil from the roll surface, preliminary annealing can be used.

Immediately before the start of the process, all cracks, grooves and grooves are embedded in graphite or copper inserts. All non-melting surfaces are covered with asbestos. After that, the rolls are heated to temperatures of 350… 4000 C. Surfacing is conducted layer by layer, using electrodes of the EN-60M type, or UONI-13/85, and then compressed in dies on hydraulic presses to achieve a fine-grained structure of the metal. When arc-surfacing is used a short arc of reverse polarity.

Immediately after surfacing, rolling rolls from roll steels undergo tempering to relieve internal stresses. The recovery of these products can be multiple.

Delivery, price

Are you interested in welding steel rolls? Buy roll steel at an affordable price from the supplier Avlob today. The price is formed on the basis of European production standards. Supplier Avlob offers to buy roll steel at the optimal price in bulk or at retail.