Plastic Refractory

Description

Description of Plastic Refractory:

Plastic refractory has fairly good plasticity and is suitable for casting construction. Mouldable plastic refractory is produced by mixing quantitative refractory aggregate, power, fireclay, binder and other additive and squeezed to brick green body shape. Plastic refractory still has good plasticity when properly packed and stocked for certain time. According to different kinds of aggregate, plastic refractory can be classified into high alumina plastic refractory, fireclay based, corundum, silica, magnesia, chromite, zirconia, carborundum plastic refractory, etc. Plastic moldable refractory is a great solution when refractory castable and bricks are too complicated or cumbersome and formwork is unavailable. Plastic refractory possesses excellent strength and high density, as well as abrasion, slag and spall resistance, can be used in a wide range of applications. Ramming plastic refractory is also resistant to molten metals, which makes it perfect for applications such as boiler work, forge furnaces, tundish linings, ladle linings, burner blocks and patches.

Physiochemical Indexes of Plastic Refractory:

Corundum Refractory Plastic:

Item		Index
Al2O3  %		85
Corundum refractory plastic ℃		1790
Bulk density  g/cm³		2.8
Cold Crushing Strength MPa	110℃×24h	≥70
	815℃×3h	≥95
Modules Of Rupture MPa	110℃×24h	≥14
	815℃×3h	≥16
Thermal Shock Resistance（900℃ water quenching,cucle）		≥30
Plasticity Index ％		20-40
Normal Temperature of Wear-resisting		≤6

Item	Index
SiO2 %	60
Bulk density  g/cm³	2.6
Cold Crushing Strength MPa  815℃×3h	≥60
PLC（850℃×3h）%	≥0.6/0
Thermal Shock Resistance（850℃×3h）cycle	≥40
Plasticity Index ％	15-40

Acid And Wear Resistant Plastic:

Item	Index
Bulk Density g/cm3	≥2.8（110℃,24h）
Crushing strength Mpa	≥80(110℃, 24h)
	≥90(1100℃, 5h)
Modulus of rupture Mpa	≥14(110℃, 24h)
	≥18(1000℃, 3h)
Refractoriness ℃	≥1730
Thermal shock resistance/ times (900℃, water cooling)	≥25
Thermal conductivity (w/m·K)	1.72（350℃）
Abrasion resistance	≤6