Casting & Forging Process
Leveraging our strategic production and R&D bases, Shanghai BZZ has established one of China’s most complete industrial chains in the special alloy industry
. We specialize in providing customized, integrated solutions for complex challenges in extreme environments involving ultra-high temperatures, severe corrosion, and high wear. By utilizing advanced simulation software like MAGMA and world-class smelting technologies, we ensure superior microstructure uniformity and stable quality for every component, with an annual capacity of 1.2 million tons of special steel and materials
Discover our wide range of high-precision casting products!
Casting Process
Shanghai BZZ Automatic Machinery Co., Ltd. boasts a complete casting production process, including investment casting, sand casting, and centrifugal casting.
• Investment Casting: Maximum weight of 500 kg
• Sand Casting: Maximum weight of 8,000 kg
• Sand Casting Maximum Size: φ800 mm x 800 mm (H).
We possess a comprehensive range of casting equipment to meet diverse component requirements. Our facilities include:
• Vacuum Induction Furnaces: Capacities of 3 t, 1 t, 200 kg, 50 kg, and 25 kg.
• Intermediate Frequency Induction Furnaces: Capacities of 3 t, 2 t, 1 t, 500 kg, 250 kg, 150 kg, and 100 kg.
• Centrifugal Casting: Several vertical and horizontal centrifugal casting machines.
• Heat Treatment: Equipment fully compliant with ASME standards.
Check out our diverse range of industrial forging solutions!
Forging Process
Shanghai BZZ specializes in the production of forgings made from high-performance special alloys, including heat-resistant and corrosion-resistant materials. Our production capabilities are characterized by a diverse range of materials and specifications, catering to both small-batch, customized orders and large-scale mass production. We primarily utilize open-die forging (free forging) and precision die forging technologies.
Key Forging Equipment:
• Forging Hammers: Equipped with a 3 t electro-hydraulic forging hammer, alongside 1 t and 0.75 t air hammers
• Refining Facilities: Several sets of protective atmosphere electroslag furnaces of various specifications
Advanced Process Route:
We employ a sophisticated triple-melting process to ensure ultimate material purity: Vacuum Induction Melting (VIM) + Electro-Slag Remelting (ESR) + Vacuum Arc Remelting (VAR).
• VIM (Vacuum Induction Melting): Achieves ultra-low gas content with [O] < 30 ppm, [N] < 80 ppm, and [H] < 2 ppm
• ESR (Electro-Slag Remelting): Provides secondary purification of molten steel to produce high-quality, refined ingots.
• VAR (Vacuum Arc Remelting): Ensures superior structural uniformity, minimal inclusions, and high alloy purity.
