电焊操纵基础常识(国外英文资料).docVIP

电焊操作基本常识(国外英文资料) Basic knowledge of welding operations Welders must undergo special technical training and actual operation, the examination made operation certificate, post operation. Two. Welders wear canvas overalls, work wear hats, jackets are not allowed to tie in the pants pocket, there must be covered, the foot should cover shoes. Three fixed or mobile welding machine shell and worktable must be grounded well. The power supply and disassembly should be carried out by electrician. Smooth and avoid vibration and collision. The place should be well ventilated and dry, with rainproof measures. Four. The exposed conductive parts and rotating parts of the welding machine and the fans for cooling shall be equipped with protective covers. Electric welding machine must be installed leakage protector, rated leakage action should be less than 0.1S. Five. Welding machine must often sweep, keep clean. In places where corrosive gases and electrical dust are present, segregation maintenance must be performed. Six. The welder shall be provided with a single switch, and the switch shall be put in the rainproof gate box. The gloves shall be worn when pulling and closing, and the side operation shall be provided. Seven. Welders before switching on, should first check welding equipment. The casing has good grounding, whether the lead line has insulation damage, short circuit or bad contact and so on. Eight. The electric welding must be firmly clamped and contact electrode, electrode holder, handle good insulation and heat insulation. Nine. The wires and ground wires are forbidden to contact the wire ropes. The wires must be insulated with good flexible cords. If there is a joint, the wires must be firmly connected and insulated. It is forbidden to use the metal structure, pipe, track, steel wire or other metal joint instead of the zero line. Ten. Welding should be worn when welding gloves, wear insulation shoes. Work in a damp place. Stand on an insulated board or a dry board.