Derived from the RPA 1040 composition this quality was developed specifically to work in the cooling zone of the kilns as well as for blower tubes or heat exchangers.
Consisting of a distinct mineralogical phase this composition stands out for the high resistance to thermal shock and chemical stability and it is an important option for the users mainly with regards to the cost benefit.
| 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.
Av. Suécia, 754 Mogi Guaçu - SP - Brasil CEP. 13848-315 T. + 55 19 3019 1250 vendas@rpa.ind.br
ALL RIGHTS RESERVED 2019
