ROLLERS 1040
COOLING TECHNOLOGY

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.

TECHNICAL FEATURES

	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.