In steelmaking industry, calcium silicon cored wire is one of the most important materials. And it plays a key role in the production process of steel.
CaSi Cored Wire Features
To begin with, core material, namely calcium silicon is proportioned strictly. And it can adjust the content precisely according to the production requirements; In addition, the form of cored wire is destined to make the calcium silicon fully dissolved and distributed evenly in molten steel; Besides, it can turn the inclusion into silicate, in order to improve the machinability; Last but not least, it is an environmentally friendly material, the steel strip can avoid the diffusion of powder in the air.
What is Calcium Silicon Cored Wire Used For?
On one hand, calcium silicon cored wire can be used as deoxidizer instead of Al. On the other hand, it can modify the properties and performances of steel.
Calcium, as one of the elements in CaSi cored wire, can help to remove some impurities. Thereby, it makes contributions to enhance the toughness, strength and resistance of steel indirectly. Concurrently, calcium silicon cored wire can also improve the machinability and weldability.
Specification
| TYPE | DIAMETER | CHEMICAL COMPOSITION |
|---|---|---|
| CaSi Core Wire | 9 mm / 13 mm / 16 mm | Ca: 30% min, Si: 55% min, Al: 1.5% max |
Operation Attention
Many operations can impinge on the results. If they are not performed properly, the results will be unsatisfactory.
Concretely speaking:
Feeding Angle: The feeding apparatus should be mounted at an elevated position adjacent to the ladle. The region between calcium silicon cored wire and gear wheel of feeding machine is arc shape, thus, it is convenient for cored wire to flow rapidly during the process. Furthermore, feeding wire gun should be perpendicular to molten steel, in order to feed cored wire into deep position of molten steel directly.
Feeding Speed: In general, for most of cored wire, feeding speed is controlled 120-160 m/min. While, frankly speaking, different steel grades and volumes of ladle have different feeding speed. And it needs to be selected according to actual situation. If speed is so fast, on one hand, molten steel is tumbled drastically because it produced too much calcium vapour in some regions. On the other hand, for calcium vapour, it does not have enough time to dissolve adequately and most of them come-up, thereby, it reduces Ca recovery rate. On the contrary, slow speed causes that cored wire does not be fed in deep position, it come-up to molten steel surface before dissolved in molten steel completely, it also causes low Ca recovery rate.
Feeding Position: It also plays a key role in calcium recovery rate. The feeding position should be chosen in the center of molten steel downward-flow and tried to keep away from argon blowing circle. Albeit calcium vapor float, molten steel descending flow can prevent it from floating to a certain extent.
These critical parameters require meticulous adjustment to achieve optimal treatment outcomes. While additional influencing factors exist, they fall beyond the scope of this discussion.
Conclusion
In conclusion, with the development and progress of steel industry, emerging various cored wire and its quality is also uneven. Hence, as a consumer, you must keep your eyes open and try your best to avoid using substandard cored wire.
JINLI GROUP is a professional manufacturer for many cored wires, like calcium silicon cored wire, CaFe cored wire, calcium cored wire, carbon cored wire and so on. Our products are inspected strictly by inspection agency and meet the standard. And we can meet the client’s requirement.
