Drill pipe welding machine is mainly used for magnetic particle inspection of drill pipe welds Magnetic particle testing. (Drill pipe and drill pipe joint welded by friction on the surface and near the friction weld surface defect detection.) 
 Equipment Overview: 
 1, CJW-3000 type magnetic flaw detector drill pipe and up and down the weld material body, the frame structure by the I-beam, channel steel, cold rolled steel plate welded by automatic feeding, cutting bodies, the magnetic chemical spray bit, observation station, automatically rotating the workpiece and other institutions, when the test piece, by the feeding bench fork automatically pull the workpiece into the station to be detected, and then feed button to move the workpiece along the reach the detection area in a sport wheel testing machine automatically stops in the all-round testing. Observation wheel drive used to rotate the workpiece, the workpiece rotating mechanism driven by the motor on the wheel to rotate, under the observation of complete feed button to move the workpiece along the exercise wheel then walk the opposite direction, when the material level to reach the next fork will be expected from the next automatically pull the workpiece into the cutting bench, this time to complete a set of actions, these actions are used manual and automatic operation mode, the programmable controller of imports (PLC) centralized control of equipment. 
 2, magnetic device consists of circumferential, longitudinal magnetic field generator is at the core of the two circuits, closed loop device to a fixed longitudinal magnetization of the workpiece, moving yoke device on the workpiece circumferential magnetization, while the output of the composite magnetic parts. Completely out of the ignition phenomenon. Week longitudinal magnetization to magnetic field while all the focus on the workpiece, forming a two-dimensional magnetic field at this time of high sensitivity, low energy consumption, testing speed. 
 3, the work steps: Feeding - Feeding - Spraying - magnetization - demagnetization - Turn observation - Unloading - unloading. 
 Main technical parameters: 
 Power supply: three-phase four-wire: 380V ± 10% 50HZ 100A (instantaneous) 45KW 
 Week to the output voltage: AC-15V 
 Longitudinal Output Voltage: AC-15V 
 Week to the output current: AC0-3000A (continuously adjustable) 
 Vertical output current: AC0-2000A (continuously adjustable) 
 Longitudinal magnetic potential output :0-24000AT (continuously adjustable) 
 Demagnetization mode: automatic attenuation demagnetization 
 Air pressure :0.5-0 .6 PMa 
 Magnetization time: 2s 
 Demagnetization time: 2s 
 Demagnetization effect: Br ≤ 0.2mT 
 UV illumination: from light 380mm, illumination of not less than 1000μW/cm2 
 Sensitivity: A type specimen 15/50 # 2 clearly show 
 Use of the environment: -20 ℃ ─ +40 ℃ 
 Relative humidity: <90% 
 Use conditions: temperature 0 ℃ ─ +40 ℃ 
 Magnetic suspension tank volume: 30L 
 Beat detection: ≤ 5 minutes / piece