[{"data":1,"prerenderedAt":332},["ShallowReactive",2],{"webinfor-en":3,"categories-en":21,"product-en-413":164},{"data":4,"meta":17},[5],{"id":6,"documentId":7,"createdAt":8,"updatedAt":9,"publishedAt":10,"locale":11,"CompanyAddress":12,"Tel":13,"ResponsiblePerson":14,"SocialMediaAccounts":14,"Email":15,"Profile":16},40,"eposa6st1t7edipq9cy8a1rq","2025-12-17T06:16:20.347Z","2026-08-12T01:16:17.962Z","2026-08-12T01:16:17.975Z","en","Room 1019B, 10\u002FF, Levi Building, 61-63 King Yip Street, Kwun Tong","Ms. Li : +86 852-53178798",null,"zjdingcheng@126.com","AIT Industry Limited specializes in the research and development of various heat treatment equipment, offering full-process services including the design, manufacturing, installation, and after-sales support of heating furnaces. The company is situated in the economically developed Yangtze River Delta region of China, with its factory spanning an area of approximately 35,000 square meters.\n\nThe company boasts a robust research and development capability, having assembled a team of engineering and technical personnel equipped with profound theoretical knowledge and extensive practical experience. Concurrently, it collaborates with Zhejiang University, a prestigious domestic institution of higher learning, to further optimize product performance. The company is dedicated to developing more \"efficient, advanced, reliable, and energy-saving\" green automatic heat treatment production lines (furnaces).\n\nGreat emphasis is placed on the protection of intellectual property rights. The company has established the \"Dingcheng\" brand trademark, which has gained favorable influence within the industry. To date, the company holds more than 20 patents, including 2 invention patents, and has obtained certification under the ISO 9001-2008 International Quality Management System.\n\nDingcheng's products are primarily applied in the bearing industry, cold-rolled sheet industry, magnetic material industry, copper industry, and standard hardware industry. The product portfolio is categorized into the following series:\n\nWalking bean heating furnace series: bearing tube heating furnace, low-carbon steel heating furnace, copper industry heating furnace;\n\nOxygen-free annealing product series: oxygen-free annealing of bearing steel tubes, oxygen-free annealing of bearing forgings, oxygen-free normalizing and annealing of low-carbon steel, bright normalizing and annealing of low-carbon steel, copper annealing;\n\nMicro-oxygen annealing product series: annealing of bearing steel tubes, annealing of bearing forgings, annealing of low-carbon steel, copper annealing.",{"pagination":18},{"page":19,"pageSize":20,"pageCount":19,"total":19},1,25,{"data":22,"meta":161},[23,79,127],{"id":24,"documentId":25,"title":26,"recommend":27,"sort":14,"createdAt":28,"updatedAt":29,"publishedAt":30,"locale":11,"url":14,"thumb":31},99,"t45pre8uzjzpc6mdzogh8das","Walking-Beam Reheating 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Its design is rooted in two core principles: the process specificity of bearing spheroidizing annealing and the natural upward movement of heat. Thermodynamically, the heat input required for heating matches the heat output released during cooling; thus, the furnace integrates a waste heat recovery system to reuse the heat emitted during the cooling stage.Key structural and functional features include:Counter-Current Heat Exchange Design: The furnace adopts an upper-layer feeding and lower-layer discharging configuration. This layout enables the recovery of over 90% of the waste heat released during annealing to preheat incoming workpieces, significantly enhancing the uniformity of product heating.Same-End Loading\u002FUnloading: Feeding and discharging operations are concentrated at the same end of the furnace, streamlining material handling for workers, eliminating the need for cross-end movement, and reducing labor intensity.High-Temperature Lifting Platform for Workpiece Transfer: Workpieces are transferred between layers using a high-temperature lifting platform. This design minimizes furnace door opening frequency, effectively \"locking\" furnace temperature to reduce heat loss, and cuts down on protective atmosphere consumption—overcoming the limitations of traditional straight-through furnaces with dual-end openings (which suffer from severe heat and atmosphere leakage).","### **Features of the Spheroidizing Annealing Furnace**\n\n*   Automated & Traceable Continuous Heat Treatment System  \n    The furnace adopts all-electric or hybrid electric-gas heating modes and operates in a continuous production mode. The entire heat treatment process is fully automated, with integrated data logging functionality to ensure complete traceability of process parameters (e.g., temperature, atmosphere composition, holding time)—meeting the quality control requirements of high-precision component manufacturing.\n*   High-Thermal-Efficiency Fiber Furnace Lining  \n    The furnace lining is constructed from high-performance refractory fiber materials. This design reduces heat storage and heat loss through the furnace wall, significantly improving thermal efficiency (typically by 20–30% compared to traditional brick linings) and lowering operational energy costs.\n*   C-Shaped Furnace Body with Dual Independent Chambers  \n    The furnace features a scientifically optimized C-shaped structure. Workpieces on the loading\u002Funloading platform undergo counter-current heat exchange between the lower (cooled discharge) and upper (preheated feed) layers, enhancing heating uniformity. The furnace is divided into two vertically independent chambers with separate temperature control systems, which improves temperature control precision (±1 °C typically) by minimizing cross-chamber thermal interference.\n*   Same-End Stepped Loading\u002FUnloading with Waste Heat Drying  \n    Loading and unloading are integrated at the same end via a stepped layout, simplifying operator workflows. A waste heat drying chamber is installed between the gas-locking chamber and the loading\u002Funloading platform: it uses residual heat from the furnace to dry workpieces, reducing water vapor ingress (a key cause of decarburization and oxidation) and further improving energy efficiency.\n*   Stainless Steel Radiant Tube Heating & Precision Temperature Control  \n    Heating elements are composed of high-quality stainless steel radiant tubes, which isolate the heating source from the furnace atmosphere—simplifying maintenance and extending element lifespan. The temperature control system combines regulators with high-precision temperature instruments, ensuring uniform temperature distribution (temperature uniformity ≤ ±5 °C) within the furnace cavity.\n*   Protective Atmosphere for Oxide-Free Surfaces  \n    A nitrogen-based protective atmosphere with carbon-enriched gas is employed. This atmosphere maintains a neutral or slightly carburizing environment during annealing, eliminating oxide scale formation on workpiece surfaces and preserving the steel’s original metallographic structure.\n*   Welded Furnace Body with Enhanced Sealing  \n    The furnace shell is fabricated via full-welded construction, with gas-locking chambers installed at both the inlet and outlet. This design minimizes atmosphere leakage and heat dissipation, further enhancing energy efficiency compared to conventionally sealed furnaces.\n*   High-Reliability Automatic Control Components  \n    Core electrical components of the automatic control system are sourced from high-quality domestic or imported suppliers (e.g., Siemens, Omron), ensuring long-term operational stability of the furnace.\n*   Dual-Sensor Temperature Control with Calibration Functionality  \n    Each heating zone is equipped with a dual-thermocouple, dual-instrument, and regulator control system. This redundant design ensures accurate maintenance of process temperatures; additionally, thermocouple calibration ports are integrated to verify sensor accuracy periodically, meeting metrological traceability requirements.\n*   Thermal Stirring Fan for Uniform Atmosphere & Temperature  \n    The furnace is fitted with thermal stirring fans that circulate the internal atmosphere. This promotes uniform distribution of temperature and protective gas, ensuring consistent heat treatment results across all workpieces (reducing hardness variation to ≤ 10 HV typically).\n*   Integrated Touchscreen Monitoring & Data Management System  \n    A touchscreen-based supervisory control system enables real-time monitoring of key process parameters (e.g., furnace temperature, atmosphere flow, workpiece position). It also provides: fault diagnosis (with root cause and troubleshooting guidelines), alarm logging, historical temperature\u002Fprocess curve storage, and entry\u002Fexit time recording. 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  自動化且可追溯的連續熱處理系統  \n    該爐採用全電或電氣混合加熱模式，並以連續生產模式運作。整個熱處理過程完全自動化，具備集成數據記錄功能，可確保工藝參數（如溫度、氣氛成分、保溫時間）的完全可追溯性，滿足高精度零部件製造的品質控制要求。\n*   高熱效纖維爐衬  \n    爐衬由高性能耐火纖維材料構建而成。此設計可減少通過爐壁的熱儲存和熱損失，大幅提高熱效率（與傳統磚砌爐衬相比，通常可提高20–30%），並降低運營能源成本。\n*   具雙獨立腔室的C形爐體  \n    該爐具具有科學優化的C形結構。裝卸平台上的工件在下層（冷卻排料）和上層（預熱進料）之間進行逆流熱交換，提高了加熱均勻性。爐體分為兩個垂直獨立的腔室，並配有獨立的溫度控制系統，通過最小化腔室間的熱干擾，提高了溫度控制精度（通常為±1 °C）。\n*   同端階梯式裝卸搭配餘熱乾燥  \n    透過階梯式布局在同一端整合裝卸作業，簡化了操作員的工作流程。在氣鎖室與裝卸平台之間安裝了廢熱干燥室：其利用爐內殘餘熱量干燥工件，減少水蒸氣進入（脫碳和氧化的主要成因），並進一步提升能源效率。\n*   不銹鋼輻射管加熱及精確溫度控制  \n    加熱元件由高品質不銹鋼輻射管組成，其將加熱源與爐內氣氛隔離——簡化了維護工作並延長了元件使用壽命。溫度控制系統結合了調節器和高精度溫度儀器，確保爐腔內溫度均勻分佈（溫度均勻性≤±5 °C）。\n*   無氧化表面保護氣氛  \n    採用含富碳氣體的氮基保護氣氛。此氣氛在退火過程中維持中性或輕微滲碳環境，消除工件表面氧化皮的形成並保留鋼材原有的金相組織。\n*   具強化密封之焊接爐體  \n    爐殼採用全焊接結構製造，在進出口處均安裝有氣鎖室。此設計可最大程度減少大氣泄漏和熱量散失，與傳統密封爐相比，可進一步提高能源效率。\n*   高可靠性自動控制元件  \n    自動控制系統的核心電氣元件均採用優質的國內或進口供應商（例如，西門子、歐姆龍）的產品，確保爐爐的長期運行穩定。\n*   具校正功能之雙感測器溫度控制  \n    每個加熱區均配備雙熱電偶、雙儀表及調節器控制系統。此冗餘設計可確保工藝溫度精確維持；此外，整合了熱電偶校準端口以定期驗證感測器精度，符合計量溯源性要求。\n*   均溫均氣熱攪拌風扇  \n    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