This roller composition has been specifically developed to work in regions of the furnace where abrupt temperature variations occur such as direct cooling, indirect cooling and preheating zones.
Conventional rollers normally tend to bend in these zones and create innumerous problems of warpage and misalignment of the ceramic tiles.
Thanks to its physical and chemical properties, RPA 1040 roller is an excellent option to minimize these drawbacks ensuring the stability of the tiles during its firing process.
ROLLERS 1040 Streaked | ROLLERS 1040 | ROLLERS 1041 NG | |
MINERALOGICAL COMPOSITION | MULLITE | MULLITE | SiC |
SiC | SiC | MULLITE | |
CORDIERITE | CORDIERITE | CORDIERITE | |
Al203 + SiC | 70% | 70% | 72% |
WATER ABSORPTION | 8% | 8% | 7% |
APPARENT DENSITY | 2,25g/cm3 | 2,25g/cm3 | 2,30g/cm3 |
MODULUS OF RUPTURA AT 25??C | < 410 kgf/cm2 | < 410 kgf/cm2 | < 390 kgf/cm2 |
THERMAL EXPANSION | 28,0 (10 -7 ºC-1) | 28,0 (10 -7 ºC-1) | 30,0 (10 -7 ºC-1) |
MAXIMUM WORKING TEMPERATURE | 1100°C | 1100°C | 1100°C |
THERMAL SHOCK RESISTANCE | Very Good | Very Good | Excellent |
NOTE: The above data is for general information and is based on typical process values.
Variations may occur and Refrat??rios Paulista reserves the right to modify them without prior notice.
Used in special roller compositions to work specifically where there are sudden variations in temperature.
ROLLERS 1093
ROLLERS 1099
ROLLERS 1093-B
ROLLERS 1100
Av. Suécia, 754 Mogi Guaçu - SP - Brasil CEP. 13848-315 T. + 55 19 3019 1250 vendas@rpa.ind.br