Are you interested in welding roll steel? The supplier Evek GmbH offers to buy roll steel in any quantity at an affordable price in a wide range. We provide product delivery anywhere in the continent. The price is optimal.

Weldability of Rolling Steel

Belonging to the group of high-carbon low-alloyed tool steels, such steels are characterized by unsatisfactory weldability. All the more, it is impossible to weld bulk rolled steel, which is sometimes allowed for sheet and flat billets of the materials in question.

Relevance of surfacing

Given the peculiarities of "normal" wear of rolling rolls with uniform abrasion of their contact surfaces, much more often performed not welding, and cladding of rolling rolls. The essence of the process is that on the working surface of a worn or shattered roll is applied a layer of molten metal of the same chemical composition, which height will (taking into account the allowance for further processing) to restore the dimensions of the roll to the originally required.

Types of surfacing

• Gas;
• Electric arc (can be performed in manual, semi-automatic or automatic modes);
• Electro-slag;
• High-frequency currents;
• Plasma;
• Electropulse.

Evek GmbH offers to buy roll steel at an affordable price in a wide range. We provide delivery of products to any point on the continent. The price is optimal.

Preparation for surfacing

The metal clad on the working surface of the rolls should have a high impact toughness, wear resistance (including shear stress), and for hot-rolling rolls - and heat resistance. Before surfacing, roll surfaces are thoroughly cleaned of contaminants, as well as traces of grease and oxides. Pre-ignition can be used to accelerate the burnout of oil from the roll surface. Immediately before starting the process all crevices, grooves and slots are sealed, for which purpose graphite or copper inserts are used. All non-reinforced surfaces are covered with asbestos.

Heating and surfacing

After that the roll is heated to a temperature of 350 ... 400 ° C. Hardfacing is carried out in layers, using electrodes type EN-60M, or UONI-13/85, and then clamped in dies on hydraulic presses to achieve a fine-grained structure of the metal. During electric arc cladding a short reverse polarity arc is used. Immediately after cladding rolls of roll steels are tempered to relieve internal stresses. Restoration of these products can be repeated.

Buy. Supplier, price.

Are you interested in welding roll steel? The supplier Evek GmbH offers to buy roll steel in any quantity at the manufacturer's price. We provide delivery of products anywhere in the continent. The price is optimal. We invite you to partner cooperation.