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Si3N4 Riser Tube For Low Pressure Die Casting Machine

On the low pressure die casting machine, the riser tube(Lift Tube) is one of the key part and its performance directly affects the quality of the casting.

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Introduce

Si3N4 ceramics have the advantages of high specific strength, high specific modulus, high thermal conductivity, excellent electrical properties, etc. Therefore, it has special application value in extreme environments such as high temperature, high speed, and strong corrosive media, and is known as one of the structural ceramics family. With these performance, the Si3N4 become an ideal material for the riser tube(Lift Tube).

The advantage of Silicon Nitride Riser Tube(Lift Tube)

①High temperature resistance, corrosion resistance, non-wetting with non-ferrous metal melts, such as aluminum melt.

② Low thermal expansion coefficient, excellent thermal conductivity

③Excellent thermal shock resistance, strong thermal shock resistance and no crack

④Anti-oxidation, long service life.

The Data Sheet Of GPS Silicon Nitride Riser Tube

Density	3.20±0.04g/cm3
Apparent porosity	＜0.3%
Elastic modulus	300-320GPa
Compression strength ratio	35-45% (25℃)
Hardness(HRA)	92-94Gpa
Fracture toughness	7.0-9.0/Mpa.m½
Bending strength	800-1000MPa
Poisson’s ratio	0.25
Webuller modulus	11-13
Thermal conductivity	22-24W.(m.k)-1
Corrosion resistance	Good
Size stability	Good
Magnetic	No

Application

For die pressure casting machine.

Packing

In plywood case with foam.

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