"Don't talk about this yet." Li Changjiang also felt that the anger was rising. You are an apprentice, and you don't look like an apprentice at all. Any master would probably not like it: "Director Zhao, just use our
Tank training is not possible. We just dismantled a fuel tank a few days ago. I suggest that we use that fuel tank to experiment first to see if we can weld it. If you don’t have a diamond drill, don’t take up the porcelain job. This welder needs to be particular.
Gained from experience.”
Zhao Guodong nodded.
"Yes, in this case, Zhenhua, let's go outside and weld an empty fuel tank first. If we're sure there's no problem, we'll try welding the fuel tank inside a real tank."
There are many various devices inside the tank. Once an accident occurs due to welding, the damage to national property will be considerable. What's more, they are violating operating regulations now, so be careful.
"Okay." Qin Zhenhua saw that Zhao Guodong had made up his mind and knew that he had no other choice now. Just weld, no one is afraid of whom.
"Er Zhuzhu, let's go, give me a hand." Qin Zhenhua called out to Wang Erzhu, who was now his follower.
The tank fuel tank is made of thin steel plates coiled and welded. It is not small in size and has a gun mount embedded inside, so it is extremely heavy. Fortunately, there is a crane in the factory. Using the crane, the tank can be lifted directly to the tank.
It was put on the cart at the door and pushed outside.
"Fill in water!" After the fuel tank was removed, the tank mouth was open. In a few days, the inside was almost dispersed. Therefore, the step of blowing high-pressure air can be omitted. Just fill in water and weld.
At the same time, pour water in to determine where exactly the leak is.
Wang Erzhu went to collect water and fill the water tank, while Qin Zhenhua once again pushed the trolley into the workshop and pushed out a welding machine.
In factories, 380-volt three-phase welding machines are commonly used. The burn-through current is large and the welding efficiency is high. However, for thin steel plates such as oil tanks, welding is very easy. If the current is increased, it is easy to burn.
Wearing, so a small 220 volt welding machine is enough.
After pushing it out, wiring on the wiring board, and holding the welding gun, Wang Erzhu also completed the task. The oil leakage area was also marked. Qin Zhenhua was about to start working on the fuel tank.
At this time, just outside the two people, there was a circle of old masters. When they glanced over, their eyes were obviously full of distrust. Qin Zhenhua, are you okay? Then we will see how you make a fool of yourself!
If you master the know-how when it comes to dismantling a machine and can find the cause of the malfunction and get twice the result with half the effort, then welding is not that easy.
This is a craft! It takes several years of practice for an average apprentice to master the know-how of electric welding. This requires basic skills. If you don’t have that skill, if you use the welding gun, it will either not catch fire or burn a hole.
, all that comes out is slag welding.
"Zhenhua, you must keep in mind the safety precautions in the factory. When welding, you must wear all kinds of protective equipment." Zhao Guodong has not left yet and is very concerned about Qin Zhenhua. At this time, he is holding a fire extinguisher in his hand, obviously
I was afraid that Qin Zhenhua would be in danger, so I rushed to rescue him when the time came.
Although Qin Zhenhua has had many experiences, Zhao Guodong has never met him. He is Lao Qin's only son. If something happens to him, how will he explain to Lao Qin?
"No need." Qin Zhenhua said: "It's just a matter of a few moments. If you ask me to weld the car body, I will definitely dress neatly."
How many times? Is it too simple for you to tell me? Li Changjiang curled his lips, but before he could speak, he felt a burst of dazzling eyes, and he couldn't help shouting something that anyone would shout when frightened: "
Damn!"
No one was prepared, thinking that Qin Zhenhua was trying to make some gestures, but in the end, the welding gun was fired directly.
The principle of electric welding is very simple. The welding gun clamps the welding rod, puts the ground iron on the object, and then gently touches and separates to form a gap. In the gap, spark discharges and the heat generated melts the welding rod and both sides of the object, and finally merges into
Together.
This distance must be maintained, and the hand must move slowly, otherwise it will become a big hole if it continues to be motionless. If it moves too fast, it will not be completely melted, and it will become welding slag.
When an apprentice worker learns welding in the first year, if there are no holes or welding slag, he is quite savvy. Now, when Qin Zhenhua comes up and welds the fuel tank, nine times out of ten, the fuel tank will be burned into a big hole.
.
There are a lot of ultraviolet rays in the sparks of electric welding. If you stare at them, your eyes will be damaged easily. The scientific name is called electro-optical eyes. At the same time, when welding, a large amount of smoke will also be produced, which contains carbon monoxide.
Harmful gases such as carbon dioxide and hydrogen sulfide are harmful to the lungs if inhaled in excess, and the sparks are very hot and may even set you on fire. Therefore, a special safety helmet with anti-UV glass is recommended.
, work clothes and thick welding gloves are a must.
Now, Qin Zhenhua was wearing work clothes and string gloves, and he just clicked on it. This caught everyone's eyes! It was like being thrown a flash thunder when playing CS games in later generations. Everyone
While they were cursing, they quickly closed their eyes and turned their heads. If your eyes are not good, you may get eye diseases if you are exposed to this thing for a long time.
Zhao Guodong narrowed his eyes and did not avoid it. He was still worried about the fuel tank catching fire. If a flame really broke out, he would have to activate the fire extinguisher quickly.
He was prepared in advance, so he squinted through the slits of his eyes and saw Qin Zhenhua's operation clearly. When Qin Zhenhua clicked on it, he turned his head. That's right, Qin Zhenhua didn't look at the solder joints at all when he was welding.
, which is facing away from the solder joints!
Even though he turned his head, it was as if he had back eyesight. Sparks from the electric welding were flying, and his hand was moving forward rapidly. Moreover, when the hand was moving, it still flickered.
In a total of three seconds, the sparks of the welding just appeared, flickered forward, and then stopped. Then, Qin Zhenhua put down the welding gun: "Okay!"
There was no fire, and he was not hurt in any way. He even closed his breath and the smoke dispersed after passing by. Qin Zhenhua started to collect the welding handle as if nothing had happened. He also felt that his hands were burning. He had no choice but to have this effect.
You must use your own strength to win the honor of being a technical expert in the workshop.
Is this good? Are you talking nonsense? If welding can be done well like this, how can the old masters survive?