The solid calcium in the seamless steel strip can be deeply fed into the molten steel through ordinary wire feeding equipment, establishing a reliable and repeatable industry standard.
High calcium wire can be fed into molten steel from the surface using standard surface wire feeding equipment, eliminating the need for expensive wire feeding guns or other similar equipment.
The repeatable calcium recovery of 40% to 50% (depending on configuration) significantly reduces molten steel surface spatter and improves ladle clearance utilisation.
The pure calcium silicon calcium seamless package brief feed line method of core equipment is a quick and safe operation that covers a small area with low investment and no smoke. The temperature drop is minimal (5~7℃), and the liquid steel suction quantity is small. There is no need to invest in refractory material and carrier gas. The alloy absorption rate is high, offering an effective method of deoxidisation, desulphurisation and alloy fine-tuning and manipulation of the inclusions in a simple briefing outside the furnace.
The wire feeding method offers several advantages over the massive material input method. These include a higher recovery rate and a higher precision hit rate, as well as suitability for micro-conditioning of alloy elements in steel.
The line feeding method offers a number of advantages over the dusting method.
1. It causes much less stirring of liquid steel than dusting, reducing spatter and liquid steel suction.
2. The temperature loss is reduced by 3~6 times, about 5~7℃/min.
3. It is possible to accurately adjust the chemical composition of liquid steel.
4. The shape of inclusions can be completely improved by adding appropriate CA-Si according to the content of aluminium and sulfur.
5. It is a cost-effective solution with low capital and operating costs.
