I am an old welder with 40 years of welding experience. Thinking about the welding road I have walked in the past 40 years, it can be summarized as: enlightenment, obsession, maturity, and precipitation.
The enlightenment stage is the state of beginners. Although the times are progressing and technology is developing, in the field of welding, not only equipment and technology are constantly updated and iterated, such as two-protection welding, semi-automatic welding, full-automatic welding, etc., self-compiled poetry welding machines have replaced rotary welding machines, but old-fashioned DC welding machines and silicon rectifier welding machines are also quite stable. For manual welding, such as arc welding, today's operating methods are basically summarized by predecessors in production practice for decades. Today's welders, like welders decades ago, need to learn practical welding experience like the older generation of welders, and this is the same. Recalling my enlightenment stage, apprenticeship, concentration, hard work, and hard work are all indispensable.
I don't know what the young welders are like when they pick up the welding gun. When I picked up the welding gun, it's no exaggeration to say that I really felt a blood connection. For me, welding is not like ordinary labor, but more like an addiction. As long as it is a job that can be done in the class, I will rush to do it, but I also made some mistakes because of it. Once I almost lost my life because of recklessness. The job I grabbed that time was to hang a small electric hoist on the I-beam to reinforce an iron plate. The iron plate weighed dozens of kilograms. I climbed up five or six meters along the hoist. The worker held the iron plate while I welded. Later, he let go, and I continued to weld for a while. The flames were everywhere and the fluorescence was shining. I felt that I had welded a lot. When the crane driver asked if it was almost done, I answered "It's done!" At this time, the welding rod in my hand fell to the bottom. I went down to pick it up. The crane just left at this time, and the iron plate on the I-beam fell down with a crash, and the position where it fell was only a millimeter away from me. At that time, I was completely confused and didn't understand what was going on. Later, from the discussion of my predecessors, I learned that although I had welded for a long time, the iron plate and the I-beam were not connected by a drop of molten iron. The melted welding rod and the molten iron are of two different properties, one is liquid metal and the other is slag liquid.