According to the different situation, electrode classification has three kinds of methods: classification, classification, use electrode according to the main chemical composition of the skin according to the characteristics of the coating after melting slag classification. Now let's look at the specific classification method.
According to the main chemical components of electrode to classification, can be divided into: Welding titania type electrode, titanium calcium type electrode, ilmenite electrode, iron oxide type electrode, cellulose type electrode, low hydrogen electrode, graphite electrode and base electrode.
If the electrode is melted, the classification of the characteristics of slag, welding electrode can be divided into acidic and basic welding electrodes. Acidic oxide as the main component of acid coating, such as silica, titanium dioxide, ferric oxide etc.. The main components of the basic electrode medicine skin are alkaline oxide, such as marble, fluorite and so on.
1, welding rod type according to the mechanical properties of deposited metal, the types of medicine, welding position and welding current types.
The following 2 electrode model establishment method: the letter "E" said electrode; the top two digital representation of the tensile strength of the deposited metal is minimum; third digit electrode welding position. "0" and "1" welding to welding in all positions (flat, vertical, horizontal, upward), "2" the electrode is suitable for welding and welding plane, "4" said electrode is suitable for vertical down welding; welding current and said coating type third and fourth digit combinations. Added "R" to the fourth digit after the, the additional "M" indicates the resistance to moisture absorption and mechanical properties of the electrode with special requirements; additional "-1" indicates the impact of the performance of the special provisions of the electrode.