1.High bond strength, 2.resistance to slag penetration and spalling, 3.used for a long time 4. the ideal repair material.

Gunning refractory for converter is made of high-quality magnesite and synthetic magnesite-carbon sand with special granularity distribution,mixing with multiple binding agent and addition agent.It has the characteristics of high adhesive rate,less resilience and easy gunning etc.It is applied to the gunning of the trunnion,slag line and other parts of converter.

One, physicochemical index:

Chemical composition
	MgO,%	>80
	CaO,%	4~6
	Al2O3,%	2~4
	Fe2O3,%	1~1.5
Physical properties	Volume density,g/cm	>2.8
	The attachment rate,%	>95
	Durability, furnace	5~8
	Quantity of water,%	12~15

 two, construction requirements:

1, the dry gunning, water gun head;

2, 5-6kg / cm requirements of wind pressure, water pressure >3kg / cm;

3, gunning, the gun head and body should be kept construction angle, distance of about 1-1.5m;

4, gunning thickness greater than 50mm suitable

5, the maximum use temperature of 1790 DEG

%Chemical Composition		Grains(mm)	(%)Permanent Liner Change	(Mpa)Modulus of Rupture		(g/cm3)B.D
MgO	CaO			110°C×24h	1500°C×3h	110°C×24h
≥82	≥3.0	0-3	-2.5±0.5	≥5	≥18	≥2.3
≥60	≥10	0-4	-2.5±0.5	≥3	≥12	≥2.2

super high quality gunning mix for converter