The production of cored-wire for the smelting steel involves a number of complicated procedures. The core material must be stable and of high quality. It also needs to be able reach the bottom molten iron. In addition, the core wire should be able to reduce the burning loss of metal calcium and make it and molten steel fully react.
There are two main ways to produce calcium cored wire: spraying and packing. Spraying the powder into the molten steel is the most common method. It is difficult, however, to achieve a uniform and high absorption rate. The other way is to pack the high purity calcium metal into a low carbon steel strip and wrap it around a molten steel rod. This method is easier to operate and produces a better result than the spraying technique.
The pure calcium wire is much easier and more efficient to use than the conventional cored wire. It can also increase the efficiency in calcium treatment within a steel mill. It can also be fed using the existing wire feed equipment. The calcium added to the molten steel can be controlled easily. The sheath on Hi-Cal is thicker and can prevent oxygen from entering molten steel.
The patented technology Hi-Cal(r), which uses longitudinal welding, has a sheath of 0.4 mm thickness. This is four times thicker than the sheath of conventional cored steel wires. This reduces the consumption of cored steel and prevents the recirculation in the molten iron of gases, which has an effect on inclusion recovery. The steel plant also saves energy and raw materials during the smelting stage, which reduces the cost of steelmaking. It is also easy to use and safe for production. It can be used in a variety of ways. It is an excellent tool for external refining steel molten, especially when used in large blast furnaces. The resulting products have excellent quality, and the smelting process is greatly improved with this new type of cored wire. It is very popular in the market and has good application value in various industries. For example, it can be used to treat the steel in the smelting of special steels and nonferrous metals. It can be used for the smelting and fusion of high-alloy, low-carbon steels. The resulting products are corrosion resistant, strong and have good machinability. They are also suitable for a wide range applications, such a building and construction.
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