Silica Ramming Mass

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Acidic Ramming Mass, also known as Silica Ramming Mass or Mix, is used in Coreless Induction Furnaces, for melting of scrap. It is a dry lining refractory that can be used for all types of iron and steel and in both mini steel plants as well as foundries. High performance Silica Ramming Mixes (also known as Acidic Ramming Mass in generic terms), designed to minimize erosion in induction melting.

Silica ramming mass can safely be used up to an operating temperature of 1700°C it expands very little so it is superior to both alumina and magnesia to resist thermal shocks. Secondly its cost is very low in comparison to alumina and magnesia. TMM India focuses on quality of silica ramming mass by providing particle size distribution to an optimum level, according to the furnace capacity and make,giving a high density, trouble free and consistent linings.

Silica is normally used conventional grades of iron grey, ductile and malleable. It is also used for melting carbon steels with carbon content higher than 0.1% and iron alloys like Ni-harden-resist and chrome iron. High purity silica yields more lining life. It also results in considerable uniformity in physical properties.

Granulometric composition:

4 mm to 1 mm 33 %
1 mm to 0.20 mm 30%
0.20 mm to 0.06 mm 17%
0.06mm & Below 20%

Grades of Acidic Ramming Mass as per furnance

Grain Size : 4 Mesh (BSS) (6 mm) and finer
Material Required : 134 lbs. Per cubic foot (2.30 g/cm3)
Installation Method : Dry Ram or vibrate
Heat Set By : Sinter @ 200 F/HR (111 C/HR) Hold @ 2912° F (1600 °C) for one hour Maximum
Temperature Recommended : Sintering : 1200°C (2192° F)
Application : 1700°C (3092° F)

Silica Ramming Mass Specifications

Grain Size : 0 to4 mm or 0 to 6mm
Grain Shape : Subangular to subrounded
SiO2 Content : 99.5% ( 0.3%)
Fe2o3 : less than 0.05%
P.C.E : Between 32 & 32 ½ Orton Cone
Apperant Bulk density : 2.2gms/ cc.

Size and Packing of Silica Ramming Mass

Packing in new HDPE/PP bags with 1 inner linings - lining of HDPE/PP liner 50 kgs/25kgs.

TS : Suitable for furnaces of 500 kg to 2 MT
TM : Suitable for furnaces of 2.5 MT to 6 MT
TL : Suitable for furnaces of 8 MT to 20 MT