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Silicon Nitride Riser Tube, Stalk for Die-casting

Comparing with cast iron materials, our silicon nitride ceramic riser tube for low pressure die casting has low heat conduction, its super heat preservation can prevent the temperature reducing of aluminum solution in low pressure casting. We keep high mechanical strength when temperature rises. It will reduce the risk of air leakage and damage if load and strength are weak.It is not easy to adhere aluminum, so it makes daily maintenance more convenient.

Stalk is the pipe fitting which transports aluminum liquid to the die cavity in the process of aluminum alloy die-casting.

Si3N4 Silicon Nitride has better thermal shock resistance and high temperature mechanical strength, and the strength will not alter at the 800 degree or other molten metal. If preheated at the time of use, It will get the best effect,

Low wettability of molten aluminum can reduce the adsorbates and slag on the tube, making it easier to do the daily maintenance.It has low heat conduction and superior heat preservation performance,

Due to its excellent corrosion resistance and low wettabillity, the tube can stand repeat washing of molten aluminum or other molten metal. 

With good high temperature mechanical strength, corrosion resistance and how wettability. The Si3N4 material can protect the normal working of heater element in the tube for a long time.