New type bonding agent is applied without water vapor during the process of using, so as to achieve the purpose of direct iron running after ramming without drying and increasing the running rate of equipment. Moreover, as more carbon residue is produced after using, the service life of ramming material can be greatly enhanced.

The product can be widely applicable to the main trough of the iron trough of medium and small high furnaces and all positions of iron runners that demand quick repair.

Drying is not needed after construction, so as to greatly shorten the cast-house repair time of high furnace, to improve the iron-making productivity of high furnace, to save the cast-house drying equipment, to lighten the labor intensity and workload of furnace-men, and to reduce the unit consumption of refractory material and the production cost of iron-making. 

【Physiochemical Index】

Model  Item		TG-D1	TG-D2
% Chemical composition	Al2O3	≥65	≥60
	SiC + C	≥15	≥10
g/cm3 Bulk density	180℃×24h	≥2.40	≥2.40
	1450℃×3h	≥2.20	≥2.30
% Linear change rate	1450℃×3h	≤0.8	≤0.8
MPa Bending strength/Crushing strength	180℃×24h	≥4.0/12.0	≥3.0/10.0
	1450℃×3h	≥4.0/16.0	≥3.0/15.0