Relevance

Hardfacing work is carried out both on new parts made of carbon, alloyed steel or cast iron, and when restoring worn during operation working edges. Service life of the parts restored with hard alloys increases by at least three times in comparison with the new ones. The cost of the refurbishment does not exceed 25-30% of the cost of a new part.

Technical characteristic

The hardfaced layer has all the properties inherent to hard alloy with minimum thickness: high hardness and high wear resistance. The main disadvantages of this method are low productivity, inconstancy of the chemical composition of the cladding layer and impossibility of using it for cladding parts with considerable thickness (50-60 mm).

Cladding with acetylene-oxygen flame

This is the most common method of surfacing cast alloys (Stellite, Sormite 1 and 2). It provides a tight cladding surface of considerable thickness without mixing with the base metal. A characteristic feature of this method is that the base metal at the coating area is not brought to complete melting, but only to the appearance of metal weeping, after which the alloy cladding process is carried out.

Electric arc cladding with a carbon electrode

Hardfacing of cast and powder hard alloys with direct current of direct polarity by carbon electrodes with a diameter of 8-20 mm at an amperage of 140-200 a respectively. Hardfacing can be performed on the parts of almost unlimited thickness from low-carbon, alloyed steel and cast iron with regard to the technological features of the part metal.

Automatic submerged arc surfacing

Increase in productivity is achieved primarily by increasing the welding current strength, as well as the continuity of the process. However, increasing current is accompanied by increased depth of penetration and the proportion of base metal in the deposited layer, which in the surfacing of wear-resistant alloys is extremely undesirable.

Single-arc automatic surfacing under a layer of flux.

To reduce the share of base metal in the roll, surfacing in several layers is carried out. The constant metal composition is usually set from the third layer. This cladding method is used on parts of blast furnace, milling, rolling and other equipment.

Furnizor

We offer to buy hardfacing from the specialized depots of the supplier Evek GmbH with delivery in any city. Full compliance with modern quality standards. The supplier Evek GmbH offers cladding with hard alloys, the price is optimal in this segment of rolled metal products.

Buy, bargain price

Supplier Evek GmbH offers to buy cladding with hard alloys, price - determined by the technological features of production without including additional costs. The company's website displays information about the latest arrivals of products. Today you can buy hardfacing with hard alloys at the best price. We have the best price-quality ratio. In the segment of rare and refractory metals, Evek GmbH is a profitable supplier.