Al-Si-Mn alloy and its preparing process

A manganese alloy, aluminum-silicon technology, applied in the fields of deoxidizers and additives and their preparation, can solve the problems of easy pulverization, high cost, difficult storage, etc., achieve the effect of large specificity, reduce steelmaking cost, and reduce aluminum consumption

Inactive Publication Date: 2004-10-06
GEBREIER ALLOY CHANGZHOU
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  • Summary
  • Abstract
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Problems solved by technology

However, the aluminum-manganese-silicon alloy of this composition cannot be produced in the submerged arc furnace. Even if the silicon-manganese alloy with low aluminum and high manganese or high manganese and high aluminum is produced, the cost is quite high. Defects such as difficulty in storage

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0013] The preparation method embodiment of aluminum silicon manganese alloy, taking 500KG intermediate frequency furnace as an example, the total feeding amount is 470KG, proceed according to the following steps in turn:

[0014] A, heating and remelting, 346KG of silicon-manganese alloy (Kunming Alloy Factory production) with a silicon content of 17% and a manganese content of 67% is put into an intermediate frequency induction furnace, and the temperature is raised to 1500° C.;

[0015] B. Make slag and remove carbon, add modifier (NaCl), stir well, make the carbide float to the upper layer of the solution, and then manually remove the slag;

[0016] C, adding aluminum and silicon, adding 95KG of metal aluminum with an aluminum content of 99.99%, adding 29KG of metal silicon with a silicon content of 99%, stirring evenly, and heating up to 1240°C;

[0017] D. Rapid ingot casting, quickly cast into an iron mold with a wall thickness of 10 cm;

[0018] E. Demoulding and air ...

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Abstract

An AlSiMn-alloy contains A (19-21 wt.%), Si (16-20 wt.%), Mn (48-52 wt.%), C (0-1.8 wt.%), P (0-0.25 wt.%), S (0-0.04 wt.%) and Fe (rest), and is prepared through thermal resmelting, slogging to remove carbon, adding Al and Si, fastly casting ingots, demoulding, cooling in air. Its advantages are short smelting time and less consumption of Al.

Description

Technical field [0001] The invention relates to a deoxidizer and additive for steelmaking and a preparation method thereof, in particular to an aluminum-silicon-manganese alloy and a preparation method thereof. Background technique [0002] At present, the demand for manganese-containing alloy steel series products, especially pipeline steel, is increasing day by day. Deoxidation and alloy addition of pipeline steel smelting are important processes for preparing suitable qualified steel products. Traditional steelmaking deoxidizers generally use single silicon, manganese or pure aluminum for deoxidation. The effect of these single elements as deoxidizers is poor. There are many non-metallic inclusions in the smelted steel, and the steel quality is not good. As one of the metallurgical materials, the composite deoxidizer has a better deoxidation effect than the single element, and this fact has long been recognized by the steelmaking industry. Among them, aluminum-silicon-ma...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21C7/06C22C22/00
Inventor 梅国平徐建民章汉云蒋勤法林一飞
Owner GEBREIER ALLOY CHANGZHOU
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