Starting this March, Hangzhou Iron and steel converter and EAF steelmaking plant began trial two solid core of pure calcium cored wire replacement cored wire, achieved good results, has been widely used, month reduce calcium treatment costs RMB 2500000, reduce the cost of steelmaking process. Solid core of pure calcium cored wire a few years ago introduced, although its products of good quality, high recovery rate of calcium, but RMB 50000  / ton price makes a lot of steel and step back.

In 2010, some domestic calcium cored wire factory simplification envelope process, developed and produced to meet domestic mill use product, price is only about half of the imported products, the second half of the year in some steel mills began to use. Hangzhou Iron and steel converter, electric furnace factory company puts forward to try the product in March of this year, supplies branch actively resource investigation and implementation, do a good job with the trial.

The result shows that the calcium, the recovery rate reached 25%, 23.2% respectively, is 3 times the Si Ca line. The use of a solid core of pure calcium cored wire, company monthly purchasing CASI wire 650 tons, CASI wire replaced, use a solid core of pure calcium cored wires and silicon barium calcium line 130 tons, according to estimates of the purchase price at present, the monthly cost savings more than RMB2500000.

Solid core of pure calcium cored wire of high purity, less impurity, used to improve steel quality, high content of oxygen and solves the problem of the company over the years to produce CaSi wire and procurement CaSi powder, threefold.