BCPL Tundish Board : It is Designed and Manufactured uniquely as per customer’s unique requirements. The boards are magnesite and silica based. Selected raw materials, through research, performance testing and a rigid process control plan result in the consistent quality of high density MgO tundish boards. With assistance of our superior product, back up lining is prolonged and tundish deskulling is an easy and simple procedure.
Silica Base Tundish Board
Specification
Tundish Pad
Cones & Impact Pad
SiO2
≥90
≥90
Fe2O3
≤1
≤1
C(%)
3 - 5
3 â¿¿ 5
Bulk Density (gm/cm3)
≤1.2
≤1.9
App. Porosity (%)
≤45
≤25
C.C.Strenght (Kg/Cm2)
25-30
45-50
Application Temp. Deg. C
≤1650
≤1650
Humidity (%)
<1
<1
Ignition Loss (%)
5-5.5
4.5-5.0
Sealing Compound & Ramming Compound
Specification
Sealing Compound â??Reading for useâ??
Ramming Mix â??Ready for Useâ??
SiO2 (%)
≥85
≥85
Al2O3 (%)
5-7
5-7
CaO (%)
≤0.5
≤2.0
MgO (%)
≤1.0
≤1.0
Fe2O3 (%)
≤0.5
≤5.0
C (%)
-----
4-7
Alkalies (%)
3-5
------
Application Temp. Deg.C
≥1650
≥1650
Moisture (%)
-----
≤9.5
BCPL NOZZLE OPENING COMPOUND:
It is a free flowing refractory particular material used in the ladle or tundish sliding gate to prevent skulling and steel freeze-off and ensure easy opening at the start of casting.
Description: It is a highly refractory, granular product with selected particle size and distribution remains flow able at high temperature ensuring consistent and trouble free ladle slide gate operation
Application:For achieving the best result it should be preheated at around 100C for about an hour to drive out any physical moisture
The nozzle cavity should be cleaned of slag and any refractory particles before application. The quantity of Nozzle Opening Compound to be applied should be carefully determined so that the nozzle cavity is entirely filled with a slight mound at the nozzle top. It should be applied with a suitable applicator to ensure that the product is applied at proper place.
Function: Successful operation of ladle slide gate depends to a large extent on the use of proper nozzle filling compounds and operating conditions the nozzle filling compounds should have sufficient refractories to prevent sintering of the particles at high temperature and good flow ability.
Benefits:Good nozzle opening performance is ensured
The need of oxygen lancing for opening the slide gate nozzle is minimized
Well block and nozzle life is increased.
BCPL Exothermic Insulating Sleeves
The Main requirement in the casting of small ingot is to maintain the head metal at a high temperature during the relatively short body solidification period. This a achieved by heading with a highly exothermic and rapid. Burning Exothermic Insulating Sleeves feeder head which raises its own temperature during the burning period to a level near to that of the liquid steel. The solidifying chill portion of the ingot can thus be fed from the liquid head metal reservoir.
Application:Its one piece heads are custom designed for wedging wholly or partly super imposed into ingot moulds. Where partly superimposed it is usually necessary to weight the feeder head in order to prevent flotation due to buoyancy.
BCPL Exothermic Insulating Sleeves should be used with the appropriate grade of anti piping compound.
Function:Exothermic Insulating Sleeves feeder heads are normally supplied as one-piece units to ensure the adequate feeding of small ingots up to 15 tones in weight. A high Proportion of steels made and fed in this manner are specialist highly alloyed tool, die and stainless steel qualities.
Benefits:Goods dimensional accuracy for easy of fit highly insulating residue on completion of burning. Low fume evolution during the exothermic burning period. Easy striping from ingots heads. Goods resistance to Thermal and Mechanical shock. Low moisture pick up.