Silicon Barium Calcium Alloy

Product Description

Silicon Barium Calcium Alloy is an effectively new type of composite alloy, which is deoxidizer and desulfurizer in steelmaking and has the performance of dephosphorization, in addition which is also inoculant and metamorphic agent in casting. Barium in steelmaking temperature range effectively reduce the vapor pressure of calcium, increase the solubility of calcium in the liquid steel. Compared with the calcium silicon alloy, calcium silicon barium alloy as a source of calcium to join in liquid steel, the addition of calcium quantity is half of the addition in calcium silicon alloy, while the calcium content in liquid steel is twice as calcium in calcium silicon alloy; the stability of calcium in liquid steel can also be improved obviously. This shows barium in liquid steel effectively protect the calcium, reduce the oxidation of calcium so as to achieve the purpose of treating calcium in liquid steel.

Features

(1) Silicon Barium Calcium Alloy is one efficient new type composite alloy in department of barium alloy, it is used for steelmaking deoxidizer, desulfurization agent, also have a function of dephosphorization; it is the nucleating agent and modificator in casting.

(2) Barium can reduce the vapor pressure of calcium effectively in steelmaking temperature range and increase solubility of the liquid steel. Compared with the calcium silicon alloy, silicon barium calcium alloy as a source of calcium in liquid steel, the adding amount of calcium even half of the calcium silicon alloy addition amount, the calcium content in the molten steel is about twice of the calcium silicon alloy, the content of calcium in liquid steel is also significantly increased. It fully shows that barium effectively protect the calcium in liquid steel, reduces the oxidation of calcium, so as to achieve the purpose of dispose of calcium in steel liquid.

Advantage

1. Silicon Barium Calcium Alloy can reduce dust pollution to steel plants and completely stabilize the refining process due to its stable phase and fast slag formation;

2. This product does not contain impurities such as hydrogen, nitrogen, and carbon, and its high-quality metallurgical effect is conducive to updating the quality of iterative steel;

3. The product has uniform chemical composition, low melting point, around 1365 ℃, fast melting speed, and can shorten casting time;

4. This product does not contain fluorine, does not corrode furnace lining and ladle;

5. This product has a dense structure, does not absorb water, and is easy to store and transport in the warehouse.

Production steps

The calcium silicate barium can be used as a Oxygen scavenger, and the effect of the calcium silicate barium as a desulfurizer is good, and the dephosphorization can also meet the requirements. The preparation method of calcium silicate barium inoculant is mainly the following steps: first crush the chromium alloy, calcium silicate, and Phosphide into 2mm to 6mm particles, and then mix them as per the example of 1500 to 2500; Melt the obtained mixture at a temperature of 1500 degrees Celsius for 5 minutes, then cool it immediately; The cooled mixture obtained is mixed with manganese vanadium nitride in a mass ratio of 2000 to 1000 using atomization method to form powder; Sinter the blocks made in a high-temperature furnace protected by nitrogen gas in multiple systems to obtain a sintered mixture; Use mechanical mixing method to mix and crush the sintered mixture with silicon barium alloy in a mass ratio of 1000 to 100. The deoxidation effect, silicon increasing efficiency and cooling rate of silicon barium calcium alloy Oxygen scavenger are better than those of the original silicon calcium composite Oxygen scavenger. From this, it can be seen that the application of silicon barium calcium is quite extensive and its development prospects are also very promising.

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