Combined with the characteristics of the RPA 1040 composition, the striped roll is indicated to be used in situations of extreme thermal variation, specifically in direct cooling of the ovens.
Its profile contributed to an improvement in the thermal dissipation that results in the thermal balance of the ceramic pieces and the refractory roll.
The striped RPA 1040 roll is another excellent option to minimize the inconvenience of crooked or twisted rolls in this region of the oven.
| 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.
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