Depending on the circumstances, welding, there are three classifications: Classification by use of welding, according to the main chemical ingredient drug classification of skin, the skin melted slag by drug classification features.

According to the use of welding, welding can be divided into: structural steel welding rod, heat-resistant steel electrode, stainless steel welding rod, Welding Electrodes, low temperature steel electrodes, cast iron welding rod, nickel and nickel alloy electrodes, copper and copper alloy rod, aluminum and aluminum alloys and special purpose welding rod.

If the drug under the skin of the main electrode to classify the chemical composition, welding can be divided into: titania type electrode, titanium calcium type electrode, ilmenite-type electrode, iron oxide-based electrodes, cellulose type electrode, low hydrogen type electrode ,

Type of base electrode and graphite electrode.

If the drug under the skin electrode melting, slag characteristics to classify, welding can be divided into acidic and basic welding electrodes. Acidic drug electrode main component of skin acidic oxides such as silica, titanium dioxide, iron oxide and so on. Basic electrode for the main component of skin medicine alkaline oxides, such as marble, fluorite.

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