Silicon nitride stopper Valve

Silicon nitride stopper Valve

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Silicon nitride stopper Valve

Si3N4 or Sialon/Syalon is the suitable material of stopper valve, which is used in the molten aluminum from smelting furnace infused to holding furnace, degassing tank and reservoir tank of low pressure casting. The advantages of Si3N4 material are as follows:

Good thermal shock resistance and high-temperature mechanical strength, light weight,high strength, and easy to process.

●Molten aluminum’s low wettability prevents stick of slagging in the tube, thus easy to maintain and operate.Flexible turning on and off, it can ensure the conveying the aluminum liquid in time.

●Good air tightness is needed to ensure the pressure of each cavity when in low pressure casting, so it’s necessary to guarantee the good process precision. Fuboon has the ability to process high precision ceramic bearing, we can promise the good gas tightness of such stopper valve.

●Si3N4 has excellent corrosion resistance and wear resistance, and ensure longer working life. If proper maintenance, the actual using life can be up to 2-3 years.

The prime features of  Si3N4 Silicon Nitride Ceramic

1. Extraordinary thermal shock, it can withstand up to1000ºC
2. It’s easier to do precise machining, the tolerance can be 0.001mm
3. Chemical corrosion resistance under high temperature, except for HF and H3PO4
4. Extreme wear and abrasion resistance., much better than stainless steel
5. Great mechanical properties, hardness, compressive and flexural strength are much higher stainless steel

Description of high purity   Si3N4 Silicon Nitride Ceramic
Silicon nitride ceramic offers exceptional thermal shock, extreme thermal stress resistance, excellent wear resistance, great chemical resistance, and easier machinable features. It’s always made use of producing refractory ceramic parts, anti-corrosion ceramic parts, ceramic seal parts, ceramic cutter/blade for machining.
Our company supplies a great of silicon nitride ceramic components, including Si3N4 ceramic tube, Si3N4 ceramic plate, Si3N4 ceramic rod, and various complicated silicon carbide ceramic structural parts.

Application of silicon nitride ceramics:
Silicon nitride ceramic parts work as welding pins, Ceramic Shafts, Ceramic bearings, Ceramic substrates, Ceramic piston plungers, Ceramic sliders,  Ceramic seal ring, Air turbine blades which  are widely used in machinery, electronics, semiconductor, petroleum, chemical industry, smelting, and other industries

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