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浙江上硅聚力特材科技有限公司

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Stopper Pipe, Stopper valve, silicon nitride ceramic stopper pipe tube

Stopper Pipe, Stopper valve, silicon nitride ceramic stopper pipe tube

Stopper Pipe Because SG-28 silicon nitride ceramic has high density, high strength and high thermal shock resistance , it is the best choice for stopper tube in low pressure die casting. Compared with aluminum titanate and alumina ceramics, silicon nitride has more excellent wear resistance and can ensure airtight of the stopper tube for a long time; The high temperature strength of silicon nitride ceramic is very good, so it ensures that the stopper tube can still work for a long time under frequent operating conditions. In view of the fragile property of silicon nitride ceramics, it is necessary to avoid large mechanical shocks, therefore, it must be careful and paid attention on the design and installation of the lifting transmission device.

Silicon nitride degassing rotor

Silicon nitride degassing rotor

Degassing Rotor In order to remove hydrogen in the aluminum liquid, the silicon nitride hollow degassing rotor is used to feed nitrogen or argon, and the gas is dispersed by high-speed agitation,finally achieve the effect of neutralizing and discharging hydrogen. Compared with graphite rotor, silicon nitride will not be oxidized under high temperature environment, so it will not pollute the aluminum liquid, and the service life is much longer; The property of high thermal shock resistance ensures that the degassing rotor will not break during frequent intermittent operation; Because silicon nitride is of high density and high strength, it assures that degassing rotor can be reliable and stable operation in high speed rotation.

Silicon nitride Thermocouple Protection Tube

Silicon nitride Thermocouple Protection Tube

Thermocouple Protection Tube Silicon nitride ceramic SG-28 is widely used as the material of thermocouple protection tubes because of its excellent high temperature performance,so that the service life is up to more than one year. Compared with materials such as cast iron and graphite, silicon nitride will not be corroded by aluminum liquid,therefore it can make sure accuracy and sensitivity of the measured temperature; Silicon nitride ceramic is of low wettability to aluminum liquid, so basically it may not need the on-site maintenance.

Silicon nitride heater protection tube

Silicon nitride heater protection tube

Heater protection tube apply in aluminum holding furnace or melting furnace casting industry furnace. Material: Silicon nitride Because of its excellent high temperature performance, silicon nitride ceramic has become the first choice material of the electric or gas heater’s protective tube.

Silicon nitride Riser tube & Stalk

Silicon nitride Riser tube & Stalk

Practical application proves that silicon nitride ceramic SG-28 is very suitable for the riser tube & stalk of low-pressure casting; Compared with commonly used cast iron, aluminum titanate, silicon carbide and other materials, silicon nitride ceramic has the best thermal shock resistance and a service life of more than one year; Due to the low wettability to aluminum liquid,it reduces the slagging of the inner and outer walls of the riser tube & stalk, which is convenient for daily maintenance; Silicon nitride ceramic S-28 has excellent corrosion resistance, which can reduce the pollution of aluminum liquid, therefore, it will be beneficial to improve the quality of casting for customers.

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