Calcium Ferro Cored Wire Cafe

Calcium Ferro Cored Wire Cafe Specification

Strengthen final deoxygenation

In the final deoxidation process of molten steel using the wire feeding method, after the steel is produced, the aluminum wire is fed into the ladle instead of other aluminizing agents, so that the dissolved oxygen in the steel is converted into alumina, and the residual aluminum content of the steel is stabilized at a certain level. orders of magnitude, and reduce the amount of aluminum added through large absorbance. Under general conditions, the aluminum dosage is 0.20~0.40kg/t, and the yield is high.

Added calcium

Its main task is to use core wire technology to add calcium (mostly in the form of CaSi alloy) to the steel, so that the alumina in the steel and the silicate aluminate formed during aluminum deoxidation are converted into liquid calcium aluminate at the pouring temperature. , thereby reducing its quantity, changing its shape, and reducing its size. Purify molten steel and improve steel properties (non-directionality, toughness, processability, resistance to hydrogen-induced cracking, etc.). Depending on the type of steel, 0.15-0.5kg of calcium is generally required for each ton of molten steel.

alloy composition

When using cored wire to enter the molten steel to cast other alloy elements, it is especially difficult to add normally or the addition is unstable, because it can make the molten steel thicker without direct contact with air and slag, and it is under high pressure, which is in contact with the molten steel. The contact area and time are large, so not only the addition efficiency is high and the stability is good, but the addition amount of elements can be precisely controlled, and the composition can be fine-tuned within a range close to the analysis error, thereby meeting strict technical requirements and ensuring follow-up The heat treatment parameters of the manufacturing process are well controlled.

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