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What is the formula of electric welding?
When welding man-made rings, the operation skill is the first. The combination of hand and brain is the most important, and it is forbidden to be impetuous and unprofessional. Stiffness of the right hand is a taboo, and internal rotation and external rotation are time-varying. Go hand in hand with three directions vertically and horizontally, and keep in mind the three points of welding. According to the specification, the assembly before welding is made in covered electrode with high quality and dry. There is skill in igniting the arc, and scratch and impact are optional. After arc burning, the core is not in a hurry, and preheating the base metal is very important. Wait until the temperature rises, and then implement short arc welding.
when capping and leaving holes, it should be noted that the angle of arc depression changes. Hearing the pop-pop breakdown sound, the penetration is good and the heart is relaxed. Welding is a high-tech skill, and it takes more practice to study and think. Appreciate the mystery, the small weld is wide.
Beginners learn welding skills and precautions in the initial stage of electric welding:
1. Welders must undergo professional training, and only after passing the examination can they operate independently with a safety operation certificate (they can operate under the supervision of the master gradually during the apprenticeship training).
2. welders must wear work clothes and use protective equipment (including insulating gloves, insulating rubber boots and masks) according to regulations, and the workplace pressure meets the safety requirements.
3. Before working, carefully check whether the welding machine is normal, whether the insulation is good, and the shell of the welding machine must have a good grounding.
4. The power cord and secondary circuit must be complete and well insulated, and cannot be replaced by other objects. It is strictly prohibited on equipment, steel cables, pipes, containers and the metal structure of the factory building.
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