Surfacing hard alloys
Surfacing works are carried out on new parts, made of carbon steel, alloy steel or cast iron, and when restoring worn-out in process of operation of the working edges. A life restored hard alloys of parts increases compared to new at least three times. The cost of restoration does not exceed 25−30% of the cost of new parts.
The deposited layer with a minimum thickness has all the properties inherent in the solid alloy: high hardness and high wear resistance. The main disadvantages of this method is the low productivity, the volatility of the chemical composition of the deposited layer and the impossibility of its application for surfacing workpieces having a considerable thickness (50−60 mm).
Welding acetylene-oxygen flame
This method is the most common method of welding cast alloys (Stellite, sormite # 1 and # 2). It delivers a dense weld of the working surface of substantial thickness without dilution. A characteristic feature of this method is that the base metal on the portion of the coating will not be lifted until completely melted, and just before the appearance of fogging on the metal, followed by a process of surfacing alloys.
Surfacing with the electric arc carbon electrode
Fused, cast, and powder hard alloys with direct current straight polarity carbon electrodes with a diameter of 8−20 mm at a current of respectively 140−200. Surfacing can be done on the part of virtually unlimited thickness mild steel, alloy steel and cast iron, taking into account technological peculiarities of metal parts.
Automatic arc welding under the flux layer
cored and solid wires and allows you to dramatically boost productivity, efficiency, improve the quality of the welding and working conditions of welders. Performance improvement is achieved primarily by increasing the amperage, and continuity of the process. However, the increase in current is accompanied by increased depth of penetration and fraction of base metal in the deposited layer when surfacing wear-resistant alloy is highly undesirable.
Odnogolosy automatic welding under the flux layer.
To reduce the proportion of the base metal in the platen to produce surfacing in several layers. The permanent composition of the metal is usually set with the third layer. With this method, it is fused details of blast, grinding, rolling, and other equipment.
Offer buy surfacing hard alloys with specialized warehouses supplier Evek GmbH with delivery to any city. Full compliance with modern quality standards. Supplier Evek GmbH offers surfacing hard alloys, the price is optimal in this segment of the metal.
To buy, best price
Supplier Evek GmbH offers to buy surfacing hard alloys, the price is determined by the technological features of production without the inclusion of additional costs. On the company’s website shows information about latest product arrivals. Today you can buy surfacing hard alloys at the best price. We have the best ratio price-quality. In the segment of rare and refractory metals the company Evek GmbH — best supplier.