zhengzhou qiaorun group

Products include: low-pressure cast aluminum riser tube and heater protection tube, thermocouple protection tube, high-speed pulp vacuum dehydration sheet, silicon nitride composite insulating ring assembly, wear-resistant ceramic nozzle, high-pressure ceramic plunger, etc.
Product features: high density, high strength, superior insulation, thermal shock resistance, corrosion resistance, small coefficient of thermal expansion, good thermal conductivity, long service life, high temperature resistance, no penetration with aluminum/copper liquid.
Applications include: polysilicon reduction furnaces, low-pressure aluminum casting, papermaking and other industrial fields.

Silicon nitride ceramic material, using special formula and process, each substrate is sintered at 2000 °C, thermal conductivity > 80W/(m*k), has passed the quality inspection of international head enterprises, and the size can be customized according to customer needs.
Product features: electrical insulation, high thermal conductivity, low dielectric loss, high strength, suitable for the third generation of semiconductor devices with high heat generation, such as IGBT, MOSFET, etc., with good heat dissipation and packaging effects.
Application fields include: new energy vehicles, hybrid vehicles, high-speed rail, motor drive modules, new energy charging piles, etc.