Solid core pure calcium cored wire machine production of pure calcium core wire has six advantages
1. Pure calcium core wire, calcium treatment process will not bring in other oxides existing in powder core-wrapped wire and pollute liquid steel (such as: iron oxide in calcium iron wire and alumina in calcium aluminum wire, etc.)
2. The pure calcium core wire has a high-density mandrel, and the core wire has a minimum specific surface area, which can inactivate due to oxidation and minimize the calcium oxide inclusions contaminating liquid steel.
3. More uniform calcium content per meter and higher and more stable active calcium content of pure calcium core wire ensure more stable calcium treatment effect;
4. Thicker steel casing (mm) and high-density pure calcium mandrel can feed calcium deeper into molten steel and stay below the critical depth for longer, thus achieving higher calcium recovery;
5. High density pure calcium mandrel, quality easy to detect, smaller specific surface area of core wire, so that it has a longer storage life.
Six, according to the situation of each steel mill, the number of meters of feeding pure calcium line is 1/4-1/3 of the calcium iron line, and the solid core single weight is 1/2 of the calcium iron line. The price of pure calcium line should be 3-4 times of the calcium iron line. If the purchase price of calcium iron line (including tax price) > 10,000 yuan, the number of pure calcium can reduce the calcium treatment cost per ton of steel.
