Product Description

Manufacture Process

Moulding: Cold Isostatic Pressing

Sintering: Gas Pressure Sintering

Feature：

1）High strength & good compactness. 
2） Low thermal expansion coefficient
3） Excellent thermal shock resistance
4）No wetting by molten aluminium and other non-ferrous molten metal
5）No wetting by molten aluminium and other non-ferrous molten metal

The features of silicon nitride riser tube are the same with aluminium titanate, but the density and strength of silicon nitride are higher than aluminium titanate, so the service life is ***0 times longer than other ceramic riser tube that the replacement is greatly reduced. Widely applied in aluminium alloys casting, non-ferrous metal metallurgy, etc.