After looking at the pictures above, do they look very artistic and comfortable? Do you also want to learn such welding technology?
Now the editor has summarized his own methods for everyone to learn and communicate. Please feel free to correct me if I am wrong.
It can be summed up in three words: “steady, accurate and ruthless”.
“Stability”, achieve “three stability”
1. Stable center of gravity
Welding is like martial arts training. The first thing to do is to stabilize the chassis, that is, the “horse step”. The center of gravity must not be unstable. If it shakes during welding, it will be difficult to weld a good weld.
2. The welding gun is stable
If the hand shakes, the tungsten electrode will burn out and form a phenomenon where the tungsten is trapped in the molten pool. The edges of the weld will be irregular and the fish scales will be irregular in size. We can control the gun stably by contacting the little finger and ring finger of the gun holder with the welding part, or we can The ceramic nozzle of argon arc welding is placed against the workpiece, and then the length of the tungsten electrode is adjusted to approximately 3-5mm according to the depth of the welding joint.
3. Stable wire feeding
The method of wire feeding is adjusted according to the size of the weld groove. If the groove is small, the wire can be fed continuously in the center of the molten pool. When the width of the weld is large, the wire feeding can be carried out by point feeding on both sides.
“Accurate”, achieve “three accuracy”
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1. Accurate parameters
Welding parameters are the key to the quality of welding, and it is very necessary to choose accurate welding parameters. For flat welding, vertical welding, etc., select appropriate parameters and specifications of welding materials based on the actual work station and actual plate thickness. If the welding current is small, it is not easy to start the arc. If the welding current is large, it is easy to weld through and the molten iron will flow down.
2. Accurate angle and position
The angle of the welding gun and the welding position will affect the final welding shape, and at the same time, it can avoid the occurrence of welding defects (tungsten inclusion, lack of fusion, slag inclusion). Generally, the electrode swing methods for flat butt welding include zigzag, crescent, triangle, ring, and figure eight! The key to vertical fillet welding is how to control the molten pool metal. The welding rod should swing up and down rhythmically according to the cooling condition of the molten pool metal.
3. The timing is right
During the welding process, when the first molten pool appears after arc ignition, the arc should rise quickly. When you see that the molten pool instantly cools into a dark red spot, lower the arc to the arc crater, and make the falling droplet overlap 2/3 of the previous molten pool, and then the arc is rising. In this way, vertical fillet welds are formed rhythmically.
Ruthless
Be cruel to yourself
As the saying goes, three feet of ice are not frozen in a day. Good skills are accumulated through continuous practice. Therefore, to develop good skills, we need to be hard on ourselves, be able to endure hardship, and endure loneliness. , work hard.
Post time: May-27-2024
