(1) Type of coating: It is not a type of power supply that has been specified: It is not specified. Main features: zirconia and rutile basic types are used in some welding rods. These new slag systems have not yet formed a series.
(2) Type of coating: Type of titanium oxide power supply: DC or AC Main features: Contains a large amount of titanium oxide, good electrode performance, stable arc, easy arc ignition, small splash, shallow penetration, slag coverage Good, easy to remove slag, weld seams are particularly beautiful, can be welded at all positions, especially for thin plate welding, but the weld plasticity and crack resistance are slightly poor. With the changes of potassium, sodium and iron powder in the skin, it is divided into high titanium potassium type, high titanium sodium type and iron powder titanium type. (3) Skin type: Titanium calcium type Power type: DC or AC main features : The coating contains more than 30% titanium oxide, 20% or less of calcium and magnesium carbonate, good process performance of the electrode, good slag fluidity, general penetration, stable arc, beautiful weld seam and convenient slag removal. All-position welding, such as J422, is one of the most widely used types of welding rods in carbon steel.
(4) Type of coating: Type of ilmenite type power supply: DC or AC Main features: ilmenite 305 in the coating, the welding rod has a fast melting speed, the slag has good fluidity, the deep penetration is deep, and the slag is easy to be welded. The wave is neat, the arc is stable, the flat welding and the fillet welding process have better performance, the vertical welding is slightly, and the weld has better crack resistance.
(5) Type of coating: Type of iron oxide type power supply: DC or AC Main features: The coating contains a large amount of iron oxide and more manganese iron Deoxidizer, which has a large penetration depth, a fast melting speed, a high welding productivity, and an arc stabilization. It is convenient to lead the arc again, vertical welding and overhead welding are more difficult, the splash is slightly larger, and the weld has better thermal crack resistance, which is suitable for medium and heavy plate welding. Due to the large arc blow force, it is suitable for field operation. If a certain amount of iron powder is added to the coating, it is iron powder type (6) Type of coating: Cellulose type Power type: DC or AC Main features: 15% or more of organic matter in the coating, about 30% The titanium oxide has good welding process performance, stable arc, large arc blow force, large penetration depth, less slag and easy slag removal. It can be used for vertical down welding, deep fusion welding or single side welding. Vertical and up welding technology is good. Suitable for welding of thin plate structures, fuel tank pipes, vehicle housings, etc. With the change of the content of arc stabilizer and binder in the drug skin, it is divided into high cellulose sodium type (using DC reverse connection) and high cellulose potassium type.
(7) Type of coating: low hydrogen potassium type (low hydrogen sodium type) Power type: DC or AC (DC) Main features: The coating is mainly composed of carbonate and fluorite. The electrode must be baked at 300-400 °C before use. Short arc operation, general welding process, all-position welding. The weld has good crack resistance and comprehensive mechanical strength. Suitable for welding important welded structures. According to the steady arc dose, the amount of iron powder and the binder in the coating, it is divided into low hydrogen sodium type, low hydrogen potassium type and iron powder low hydrogen type.
(8) Type of coating: Graphite type Power supply: DC or AC Main features: The coating contains a large amount of graphite, which is usually used for cast iron or surfacing electrodes. When the low carbon steel core is used, the welding process performance is poor, the splash is more, the smoke is larger, and the slag is less, which is suitable for flat welding. When using a non-ferrous metal core, it can improve its process performance, but the current is not too large
(9) Type of drug skin: Type of salt-based power supply: DC Main features: The drug contains a lot of chloride and fluoride, mainly used for aluminum and aluminum alloy electrodes. It has strong moisture absorption and should be dried before welding. The coating has a low melting point and a fast melting rate. DC power supply, poor welding process, short arc operation, slag is corrosive, need to be cleaned with hot water after welding. In addition, the electrode containing a large amount of iron powder in the coating can be called iron powder electrode. At this time, according to the main components of the corresponding electrode coating, it can be divided into iron powder titanium type, iron powder titanium calcium type, iron powder ilmenite type, iron powder iron oxide type, iron powder low hydrogen type, etc. Powder welding rod series.
Deoxidizer is manganese and silicon has stronger affinity with oxygen.Deoxidization produced in steelmaking with low smeling point,big particle size and float easily.It has good deoxidation effects as a an ideal kind of complex deoxidizer. Deoxidization is a method used in metallurgy to remove the oxygen content during steel manufacturing. In contrast, antioxidants are used for stabilization, such as in the storage of food. Deoxidation is important in the steelmaking process as oxygen is often detrimental to the quality of steel produced.
Deoxidizer
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