Wuxi Wondery Industry Equipment Co., Ltd

Project Background and Core Process Requirements WONDERY recently delivered an RN-80-6 pit-type gas nitriding furnace to ASIA PRIMA INDUSTRIES SDN BHD in Malaysia. The client focuses on gas nitriding for molds, carbon steel, alloy steel, and powder metallurgy products. Given the stringent requirements for atmospheric sealing and temperature uniformity in nitriding, the client prioritized control precision and energy efficiency during long process cycles. Technical Solutions and Parameterized Evidence 1. Superior Temperature Uniformity and Control (±5 ℃) To ensure consistent nitriding layer depth and hardness, the equipment features a specialized thermal management system:   Rated Power: 80kW heating power, adjustable from 1-100% to meet diverse process stage requirements.   Circulation Power: A powerful centrifugal fan integrated into the lid, paired with a 304 stainless steel air guide system, ensures forced atmosphere circulation.   Control Precision: Utilizes a Japanese Shimaden intelligent PID controller, achieving an instrument accuracy of ±1 ℃ and maintaining temperature field uniformity within ±5 ℃. 2. Robust Vacuum Sealing and Atmosphere Management The nitriding process occurs within a sealed muffle; WONDERY provides high-reliability sealing:   Muffle Material: Constructed from 10mm thick 310S (0Cr25Ni20) heat-resistant stainless steel, offering excellent resistance to high-temperature oxidation and nitriding corrosion.     Sealing Technology: Employs double vacuum rubber rings between the lid and muffle, protected by a water-cooling circulation system to prevent seal degradation under heat.     Flow Control: Includes an ammonia drying tank and glass rotor flowmeters for precise regulation of the process atmosphere.   3. High-Efficiency Insulation and Durable Structure   Lining Process: High-quality aluminosilicate fiber blocks from Shandong Luyang, secondary pre-compressed to enhance thermal efficiency and reduce shell temperature.   ​Heating Elements: 0Cr25Al5 resistance bands from Beijing Shougang, installed in a corrugated pattern and secured with high-alumina ceramic screws to eliminate short-circuit risks. Delivery Specifications and Features Effective Working Dimensions: Ø 900 × 1000 mm.   Automation: Equipped with a 10.1-inch industrial touchscreen for process storage, historical data logging, and over-temperature alarms.   Safety Interlocks: Features a safety linkage that automatically cuts heating power upon lid opening to ensure operator safety.

Project Background and Core Process Requirements WONDERY recently delivered an RJ3-45-9 pit-type electric resistance quenching furnace to a client in Vietnam (Mia Nguyen). The client specializes in the high-temperature heat treatment of shafts and rods, requiring exceptional stability at the 850 ℃ normal operating temperature and high structural integrity for heavy workpiece loading.   Technical Solutions and Parameterized Evidence 1. High-Strength Furnace Structure for Long-Term Service To withstand the impact of hoisting heavy shafts, WONDERY reinforced the structural design:   Frame Construction: The furnace shell is welded from 10#~12# channel steel and 4-14mm high-quality steel plates, ensuring the frame remains rigid and deformation-free under high-temperature cycling.   Load Support: The furnace bottom is constructed with heavy-duty refractory bricks, providing both weight-bearing capacity and thermal insulation for the foundation.   2. Advanced Insulation System and Thermal Efficiency To minimize energy loss at the 950 ℃ rated temperature, a multi-layer composite insulation structure was implemented:   Core Material: High-quality zirconium-aluminum refractory fiber blocks from Shandong Luyang, featuring a maximum temperature resistance of 1260 ℃.   Density and Thickness: The fiber blocks undergo secondary pre-compression, achieving a total insulation thickness of 325 mm (including ≥300 mm fiber blocks and a 25 mm back-up layer).   Environmental Impact: The exterior wall temperature rise is strictly controlled within ≤45 ℃, significantly improving the shop floor environment. 3. Reliable Heating Elements and Installation Element Material: Utilizes 0Cr25AL5 high-resistance alloy, processed into corrugated strips and installed around the furnace perimeter for uniform radiant heating.   Anti-Short Circuit Design: Resistance strips are secured with specialized high-alumina ceramic screws and washers. This eliminates the risk of thermal short circuits between the elements and the fiber wall while simplifying maintenance.   4. Intelligent Temperature Control and Safety Interlocks Control Accuracy: Features a Japanese Shimaden intelligent PID controller paired with a thyristor triggering mechanism, achieving a control accuracy of ±1 ℃ at the measuring point.   HMI: Equipped with a 10.1-inch industrial touchscreen, supporting real-time process recording, historical data retrieval, and multi-level over-temperature alarms.   Safety Logic: Integrated interlocks automatically cut off power to heating elements and fans when the furnace lid is opened, complemented by limit switches to prevent operational accidents. Delivery Specifications and Key Parameters Effective Working Dimensions: Ø 700 × 900 mm.   Rated Heating Power: 45 kW (1-100% adjustable). Sealing Method: Employs a sand-seal structure between the furnace lid and body to prevent heat escape.

Project Background and Core Process Requirements WONDERY recently delivered an RJ2-45-6 pit-type electric resistance furnace to a client in Vietnam. The customer, Mia Nguyen, primarily processes small and medium-sized metal or alloy parts. Given the standard operating range of 200-550 ℃, the client emphasized strict temperature uniformity to ensure consistent mechanical properties during tempering and stress relief.   Technical Solutions and Parameterized Evidence 1. High-Precision Temperature Field Control (±5 ℃ Uniformity) To counteract typical vertical temperature gradients in pit furnaces, the equipment integrates a robust hot air circulation system:   Circulation Power: Equipped with a 2.2 KW air-cooled centrifugal fan     Air Duct Design: Constructed from 3mm thick 304 stainless steel with an inner diameter of 700mm to ensure optimal airflow penetration.   Control Logic: Utilizes a Japanese Shimaden intelligent PID controller paired with SCR power regulation, achieving instrument control accuracy of ±1 ℃. The temperature field uniformity in the working area is maintained within ±5 ℃.   2. Energy-Efficient All-Fiber Lining Construction To address long-term operational energy costs, WONDERY optimized the insulation structure:   Material Standard: High-quality aluminosilicate refractory fiber sourced from Shandong Luyang.   Construction Process: Fiber folded blocks undergo secondary pre-compression to a density of ≥230 kg/m³.   Insulation Performance: With a total insulation thickness of 240 mm, the exterior wall temperature remains ≤35 ℃ during operatio   3. Reliability Design of Heating Elements The installation method of heating elements directly impacts service life:   Material: High-resistance 0Cr25Al5 alloy resistance bands.   Installation: The corrugated resistance bands are secured via specialized high-alumina ceramic screws. This design eliminates the risk of thermal short circuits between the elements and the furnace shell while facilitating easy maintenance. Delivery Standards and Deliverables Effective Working Dimensions: Ø 700 × 900 mm.     Automation: 10.1-inch touchscreen control system featuring process storage, historical data recording, and over-temperature alarms.     Safety Interlocks: Automatic power-off device for the ventilation fan and heating elements upon furnace lid opening to prevent operational accidents.