
Products
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Leading Products
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Process Pipe Fabrication
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Storage Tank Construction
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Horizontal Shell Fabrication
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Circumferential &Longitudinal Seam Welding Station
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Gantry type outer seam welding station
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Automatic outer seam cleaning and grinding station
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Four dimensional alignment station
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5-axis CNC Flame and Plasma Cutting & Profiling Machine
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Changeable Radius Mid-Frequency Induction Preheating System Main character
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Process Pipe Fabrication
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Cutting machine
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Pipe Cutting and Beveling All-in-one Machine
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5-axis CNC Flame and Plasma Cutting & Profiling Machine
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High Speed Band Cutting Machine
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2-axis CNC Flame and Plasma Cutting & Profiling Machine
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Movable Type 5-axis CNC Flame and Plasma Cutting & Profiling Machine
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Movable Type high speed band saw Cutting Machine
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Beveling machine
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Conveyor system
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Multifunctional fitting up machine
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Automatic welding machine
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Preheating device
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Storage Tank Construction
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Horizontal Shell Fabrication
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Plate Sutting Machine
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Plate milling machine
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Welding Manipulator
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Longitudinal Seam Welding Machine
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Conveyor System
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Circumferential seam welding machine
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Circumferential/longitudinal seam automatic gouging machine
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Preheating Machine
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Four Dimension Fitting-up machine
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Fitting up rotator
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Welding rotator
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Automatic longitudinal seam welding machine
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Automatic circumferential seam welding machine
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Process Pipe
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Horizontal Shell
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Vertical Tank
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Customized Equipment
Fitting up center preheating device
Preheating Device in Fitting Up Station
It is an exclusive and ideal device developed by NAEC for welding seam pre-heating, thermal insulation, post heating during welding. Adopt mid-frequency induction heating principle and it has the characters of high efficiency, good welding quality. The station is mainly consisted of mid-frequency induction heating power supply, extension cable for heating, induction heating band, extension cable for temperature measuring, noodle type armored thermocouple and infrared thermo-detector etc.
Regarding preheating before fitting up process, since fitting is relatively static to device during fitting up, use induction heating band connected with induction cable to twist around the to be fitted up joint, further to do heating process. The induction heating cable is connected with extension cable through protection type aerial plug, able to form a circuit with power supply. The induction heating cable can transfer the energy to heated work-piece through induction coupling and maximumly transfer high frequency current. Through aerial plug, it can realize fast connection between inductor and power supply, convenient for induction heater moving, improve equipment utilization rate and reduce labor and time waste. Adopted heating cable twisting method can satisfy the preheating requirement of pipe in different specifications, further to reduce investment cost with same function.
Address: No. 1 Zhongxing West Road, Lishui District, Nanjing, Jiangsu, China
Email:auto@autowelds.com

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