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Silicon Nitride Riser Tube & Stalk assembly with SUS304 stailess steel flange.

ID100/OD120 x L642mm  ( P103100120642.pdf )

Applications in molten aluminum​​（Feed Pipe for low pressure aluminum die casting）

● Sialon,silicon nitride,alumina and silicon carbide are known as engineering ceramics. Among them, silicon nitride has the highest thermal shock resistance. Thus, it makes handling and preheating control easier.

● Low wettability against molten aluminum makes ​material adhesion on tube less and it makes daily maintenance easier.

●  Superior corrosion resistance does not allow eluted contamination into molten metal. This is a key factor to maintain purity of molten alloys.

● Silicon nitride is a dense material and maintains its high mechanical strength even at elevated temperatures.Compared to reaction bonded materials, it assures trouble free operation. In fact, practical accomplishment shows more than 1 year in use.

The service life of the silicon nitride riser tube is 5-20 times that of the traditional riser tube, which greatly reduces the number of replacement of the riser tube for our customers, and at the same time fully guarantees the continuity and automation of our customers' production, and greatly improves our customers Improve production efficiency and capacity.

Performance characteristics：

Density>3.2g/cm3

Silicon nitride content>92%

Flexural strength>600Mpa

Compressive strength>1500Mpa

Electrical conductivity (W/mk): 16-22

Porosity: 0

Coefficient of thermal expansion (RT-1000℃): 3.2

Working temperature: 1400℃

Hardness (HRA): >92

Features:

1. Good density and high strength

2. Excellent thermal conductivity and thermal shock resistance

3. It is non-wetting and corrosion-resistant with non-ferrous metal melts such as aluminum melt

4. High temperature resistance, low thermal expansion coefficient

Riser Tube & Stalk for low pressure aluminum die casting  in Si3N4. 

ID80*OD110*L1050mm （P103801101050.pdf）

ID80*OD110*L980mm   （P10380110980.pdf）

ID70/OD100xL1100   ( P103701001100.pdf )