Nitride Ceramicssintering Furnace (for pressure sintering of silicon nitride, aluminum nitride, and boron nitride ceramic materials)

Silicon Nitride Sintering Furnace Application In Automobile Industry

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Facts about Si₃N₄

There exist three crystallographic structures of silicon nitride (Si₃N₄), designated as α, β and γ phases.The α and β phases are the most common forms of Si₃N₄, and can be produced under normal pressure condition. The γ phase can only be synthesized under high pressures and temperatures and has a hardness of 35 GPa.

trigonal α-Si3N4	hexagonal β-Si3N4	cubic γ-Si3N4

Automobile industry

One of the major applications of sintered silicon nitride is in automobile industry as a material for engine parts. Those include,

• In diesel engines, glowplugs for faster start-up;
• Precombustion chambers (swirl chambers) for lower emissions, faster start-up and lower noise;
• Turbocharger for reduced engine lag and emissions. In spark-ignition engines, silicon nitride is used for rocker arm pads for lower wear, turbocharger turbines for lower inertia and less engine lag, and in exhaust gas control valves for increased acceleration. As examples of production levels, there is an estimated more than 300,000 sintered silicon nitride turbochargers made annually

       Zhuzhou Ruideer Intelligent Equipment Co., Ltd. is a manufacturer of powder metallurgy solutions for the whole industry chain. It integrates process development, production, sales and coating services of sintering furnace, PVD coating furnace and CVD coating furnace. Ruideer has standardized workshops and office buildings, covering an area of more than 19,000 square meters, with more than 170 employees. Ruideer’s productivity reaches 120 sets of pressurized sintering furnaces per year, 500,000 pieces of PVD coating per month, and 250,000 pieces of CVD coating per month.

In the past years, Ruideer has been rated as a national high-tech enterprise, a national-level Specialized and Sophisticated enterprise (appointed as a national key little giant enterprise in 2022), a little giant enterprise in Hunan Province, and a single champion of pressure sintering furnace in Hunan Province, and gained 85 intellectual property authorizations.

Nearly 400 sets of degreasing gas pressure sintering furnaces and 180 sets of degreasing vacuum pressure sintering furnaces have been produced. In order to continuously meet and exceed customer needs, Ruideer provides customers with "targeted application, key development, and tailor-made" characteristic services. The products are sold both at home and abroad (US, Russia, EU, Japan, Ukraine, South Korea, Vietnam and other countries), providing 24-hour response services to domestic customers. Ruideer's products have been widely used in the cemented carbide, ceramic, MIM stainless steel, semiconductor industry.

In line with the enterprise spirit of "quality-oriented, continuous innovation, service satisfaction, unity and hard work, and common development", Ruideer is guided by market demand and business development, supported by key technologies, closely following customer needs, and is committed to serving customers with stable and reliable technical products and contribute to the application in the field of powder metallurgy!

Our standard sintering furnace model include (but are not limited to):

• Gas pressure sinteing integrated furnace（1MPa/2MPa/6MPa/10MPa)
• Debinding vacuum sintering integrated furnace
• MIM stainless steel sintering furnace
• Silicon nitride sintering furnace
• Silicon carbide sintering furnace
• Metal sintering furnace (Mo/W heater)
• Vacuum brazing furnace
• CVD coating furnace