Heat treatment is an important part of the basic process of manufacturing: because the internal material structure of the workpiece cannot be directly observed, the quality inspection can not fully reflect the quality status. There are many influencing factors in the process, the interaction is complicated, the quality control of the heat treatment is difficult, high quality, high efficiency and clean. The heat treatment process has also become an indispensable part of the advanced manufacturing industry, which constitutes the core competitiveness of internationally renowned companies and is highly valued. Many companies in China's heat treatment industry are also continuing to tackle the problem and continue to achieve results.

 

Computer simulation of heat treatment and application technology: The core of intelligent heat treatment consists of computer simulation, experimental tools and digital data. Heat treatment computer numerical simulation is an important means to optimize design and heat treatment process equipment, realize precise control of heat treatment process, and is the core of intelligent heat treatment. technology. Intelligent heat treatment is to help the industry develop towards resource conservation and environmental friendliness. Shanghai Jiaotong University has achieved certain results in this field and applied it to actual production processes such as crankshafts, bearings, molds, and forgings for energy equipment.

 

Plasma nitriding technology application: Compared with traditional products, the new ion nitriding equipment has a hot fireplace structure, high-power high-frequency pulse power supply, high-precision temperature measurement, multi-channel gas supply system, automatic pressure control in the furnace, and furnace self-lifting. Lifting system, fast nitrogen filling cooling system, automatic control system and so on. Related new processes include active screen ion nitriding, ion soft nitriding + post oxidation treatment, and austenitic stainless steel low temperature hardening treatment to fill the domestic gap.

 

Continuous carburizing high pressure gas quenching technology continuous carburizing high pressure gas quenching furnace is suitable for large-scale production start-up degree;

 

Simplify the process, improve efficiency; reduce labor intensity and labor cost; reduce equipment investment cost and energy consumption; no need to clean, energy saving and environmental protection. The process characteristics include quenching for thin-walled parts and ring parts; the workpiece is subjected to high-pressure gas quenching, and the deformation is small; the workpiece is non-oxidized, and the surface is silver-gray; because it is gas-quenched, the surface does not need to be cleaned;

 

Excellent hardened layer structure can be obtained; internal oxidation and non-horse structure caused by pressure quenching are avoided.

 

Micro-arc oxidation surface heat treatment technology Micro-arc oxidation is a new technology for in-situ growth of ceramic oxide film on light metal surface. Micro-arc oxidation uses a higher working voltage to introduce the working region from the normal anodized Faraday region to the high-voltage discharge region. . The technology can grow a dense oxide film on the surface of aluminum and magnesium alloy. This protective film has strong bonding force with the substrate, small dimensional change, wear resistance, corrosion resistance, thermal shock resistance and insulation performance. It replaces the hard chrome plating technology for environmental pollution, and can replace the pretreatment of electrophoresis process, replacing anode oxidation and reducing wastewater discharge. The technology has broad application prospects in the fields of aviation, aerospace, machinery, automobile, petrochemical, textile, electronics, light industry and so on.

 

Digital induction heat treatment equipment digital technology in equipment manufacturing applications include digital inductive power supply, 3D simulation in machine tool design, heat treatment robot application, and sensor additive manufacturing technology. The application of digital technology in production management, including product identification and misplacement, process parameter monitoring system, big data acquisition and transmission, remote fault diagnosis and maintenance. In addition, there are induction heat treatment process simulation design and computer simulation. The intelligentization gradually penetrates into the production preparation, the production process, and the after-sales service.