calcium alumina is good auxiliary material for melting the steel. it can slow the melting time.

calcium alumina/sythetic slag/ blast furnace slag/aluminum slag/pre-melting slag

There are three main Series: calcium ferrite Series, Calcium Silicate Series; calcium aluminate series.

Characteristics:

1) Uniform composition, low melting point slag minerals (≤ 1350 ), melting fast, melting time shortened, slag forming fast, and reducing dust pollution.

2)  The proper viscosity of slag can promote the inter-deoxy-desulfurization reaction between slag and molten steel.

5)  Effective adsorption capacity of inclusions, a certain role in the deoxy and deoxy, helping purify the molten steel.

6)  Non-absorbent, facilitate the storage and transport. 

7)  Applies to LF, SKF, VHP and other refining process, can greatly improve molten steels quality and service life of ladle. 

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Category	CaO	Al2O3	SiO2 max	TiO2 max	Fe2O3max	MgOmax	FCaF2	P.Smax
WCA-3.5	49-54	40-45	3.5	2.8	2.0	2.0		0.05
WCA-3.52	50-56	36-44	3.5					0.05
WCA-6.0	47-52	40-45	6.0	2.8	2.0	2.0		0.05
WCA-25	34-38	33-37	22-26	2.5	2.0	2.0		0.05
WCA-C53	53-58	33-37	4	2	1.5	3		0.05
WCA-F10	56-58	18-20	5			5-8	10	0.05
WCA-F25	38-42	28-32	5				23-27	0.05
WCA-M3	45-55	40-45	4			2-4		0.05
WCA-M5	47-51	37-41	5	2.5	2.0	4-7		0.05
WCA-M10	20-25	55-60	5	3.5	2.0	8-12		0.05

Calcium alumina/sythetic slag for ladle