Pure Calcium Cored Wire for Alloy Production is an alloying welding wire used in the steelmaking or ironmaking process to add various elements to the molten steel in order to accomplish certain metallurgical goals. It is a highly specialized product, which can be used to introduce elements such as deoxidizers, desulfurizers, and alloy additives into the molten steel and enhance its castability.
It can also change inclusion shapes, purify, and clean molten iron, and improve casting. It is a very important tool for refining and adjusting the molten steel, and its use can significantly increase the alloy yield, reduce the alloy consumption rate, shorten the smelting time and accurately control the ingredients.
The core wire is made of metal calcium granules or metal calcium steel strip, and it is wrapped by cold-rolled low-carbon steel strip. The outer layer of steel strip is tightly encased, and there's no air between the two to prevent oxidation. The sheath on the core wire has a high level of rust resistance and can be manufactured in any length to suit the user's needs.
Cored wire is suitable for use in electric arc and ladle metallurgy. It produces 20 to 50 % less fumes than traditional flux-cored wiring, and is suitable for applications requiring fume reduction. It is the ideal choice for high-strength thick-sectioned steels used in a wide range industries, including machinery and aerospace.
Calcium is essential in the steel sector and has many uses in the production of cast iron. It can be added into molten iron to improve its castability and to change the shape of the molten inclusions. It is also widely used as a deoxidizer, desulfurizer, and alloying additive in the steelmaking process.
Calcium can be added to the steel molten to promote fusion and reduce slag permeability. This is a cost-effective way to improve steel quality.
To ensure that the melted metal can absorb the cored steel wire completely, it is essential to adjust the feeding rate of the cored cable during the smelting procedure. The alloying effect may be affected if the feeding speed is too slow or too fast. In addition, it is important to have the proper ratio between the powder content of the cored wire and that of the slag in order to obtain the best results.
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