Arc melting of metal
Are you interested in the technology of arc melting of metals from the supplier company AvecGlob? Here you will find interesting information on this topic /
Principle of arc melting
In an electric arc furnace, metals are melted by an electric arc in a water-cooled copper crucible. This prevents the inclusion in the metal of harmful impurities that appear when processed in ceramic or graphite crucibles. This is especially important for refractory metals such as zirconium, titanium, vanadium and their alloys, since these materials easily enter into chemical reactions at elevated temperatures.
Heating is carried out by a high-energy plasma arc. This allows to melt materials with a melting point up to 2200 ° C. In arc melting, it is possible to reduce the percentage in the metal of volatile components, for example, sodium, potassium, calcium, etc. compounds.
Typical alloys obtained by arc melting include alloys of titanium with aluminum, zirconium, niobium, hafnium, tantalum, vanadium and other deficient components.
Supplier — AvekGlob Company — offers at affordable prices from the manufacturer various metals and alloys of high chemical purity in a wide range of cross sections and weights. The supplier guarantees the timely delivery of products to any address specified by the consumer.
Technology of plasma arc melting
Plasma arc furnace is a device for melting a substance by a low-temperature plasma flow, usually created by an electric arc heater (plasmatron). The main direction of application of a plasma furnace is electrometallurgy. Advantages of a plasma oven:
high stability of the working process and the possibility of continuous temperature regulation by changing the electric conditions of the plasma torch;
the ability to work in virtually any desired atmosphere;
high degree of application of alloying additives;
a decrease in the content of impurities and, as a consequence, the possibility of melting low-temperature materials (carbon steels and alloys);
relatively little pollution of the surrounding air.
In plasma furnaces, various plasmatrons of direct and alternating current are used. In large plasma furnaces, several plasmatrons are used to provide more uniform heating.
The main types of plasma furnaces are plasma furnaces for melting in a ceramic crucible and plasma furnaces for melting in a crystallizer.
Ceramic crucible plasma furnaces are used mainly for melting steel, nickel-based alloys and metal waste with alloying additives.
Argon is commonly used as a plasma-forming gas. The main advantage of a plasma furnace is that it does not require intensive air flows to maintain the combustion process.
Plasma furnaces with a crystallizer are used mainly for the process of metal refining. Plasma furnaces with a crystallizer can be used in a wide range of pressures (10 6… 10 -1 Pa). If necessary, the pressure may vary during the operation cycle of the plasma furnace.
Supplier — AvekGlob Company — offers to purchase various metals and alloys in any quantity and nomenclature of sizes, obtained by the technology of arc and plasma arc melting. Products can be bought at a price formed on the basis of European and world standards of production. Implementation is possible in bulk and retail, for regular customers, a flexible system of discounts operates.