Induction heating device in steel pipe and heating method with induction heating device
An induction heating device and built-in heating technology are applied in the field of steel pipe heating to achieve the effects of convenient equipment installation, less oxidation and low investment
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[0041] Example 1
[0042] 1) Place a steel tube with a diameter of 630mm on the tube turning trolley to measure the center height of the steel tube, then place the intermediate frequency induction coil on the cantilever, adjust the height of the cantilever so that the coil and the steel tube maintain a uniform center height and ensure the gap between the coil and the steel tube Evenly, connect the coil and the intermediate frequency equipment with a water cable, after the intermediate frequency equipment is energized and watered;
[0043] 2) Start the intermediate frequency heating equipment. After the steel pipe is heated, the temperature is 200℃~220℃, the time is 25min, the intermediate frequency voltage is 260V, and the DC current is 380A;
[0044] 3) Adjust the roll distance of the tube turning trolley to 450mm, the steel pipe speed to 20r / min, and the traveling speed of the tube turning trolley to 480mm / min;
[0045] 4) The tube turning trolley moves forward uniformly at the set ...
Example Embodiment
[0046] Example 2
[0047] 1) Place a steel tube with a diameter of 1020mm on the tube turning trolley to measure the center height of the steel tube, then place the intermediate frequency induction coil on the cantilever, adjust the height of the cantilever to keep the coil and steel tube at a uniform center height and ensure the gap between the coil and the steel tube Evenly, connect the coil and the intermediate frequency equipment with a water cable, after the intermediate frequency equipment is energized and watered;
[0048] 2) Start the intermediate frequency heating equipment, the heating temperature of the steel pipe is 200℃~220℃, the time is 30min, the intermediate frequency voltage is 370V, and the DC current is 500A;
[0049] 3) Adjust the roller pitch of the tube rotating trolley to 670mm, the roller speed of 12r / min, and the traveling speed of the tube rotating trolley to 400mm / min;
[0050] 4) The tube turning trolley moves forward uniformly at the set speed, and starts ...
Example Embodiment
[0051] Example 3
[0052] 1) Place a steel tube with a diameter of 2020mm on the tube turning trolley to measure the center height of the steel tube, then place the intermediate frequency induction coil on the cantilever, adjust the height of the cantilever so that the coil and the steel tube maintain a uniform center height and ensure the gap between the coil and the steel tube Evenly, connect the coil and the intermediate frequency equipment with a water cable, after the intermediate frequency equipment is energized and watered;
[0053] 2) Start the intermediate frequency heating equipment. After the steel pipe is heated, the temperature is 200℃~220℃, the time is 60min, the intermediate frequency voltage is 600V, and the DC current is 870A;
[0054] 3) Adjust the roller pitch of the tube rotating trolley to 1130mm, the roller speed of 7r / min, and the traveling speed of the tube rotating trolley to 200mm / min;
[0055] 4) The tube turning trolley moves forward uniformly at the set sp...
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