"Don't talk about that yet." Li Changjiang also felt that the fire was constantly rising, you are an apprentice, there is no apprentice at all, any master will probably not like it: "Director Zhao, directly use our tank to practice, that's not good, a few days ago, we just dismantled a fuel tank, I suggest, first use that tank to experiment, see if you can weld, no diamond drill, don't do porcelain work, this welder, that is to pay attention to the accumulation of experience." ”

Zhao Guodong nodded.

"Yes, in this case, Zhenhua, let's go outside first, weld an empty fuel tank, and then say, if we are sure that there is no problem, let's experiment with the real tank internal welding fuel tank."

Inside the tank, there are many various devices, once there is really an accident because of welding, the damage caused by the state property is not small, not to mention, now they are violating the operating regulations, and they must 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, who was afraid of whom.

"Erzhuzi, go, give me a hand." Qin Zhenhua shouted Wang Erzhu, and now, Wang Erzhu is already his follower.

The tank fuel tank is made of thin steel coil welding, the size is not small, and the inside is embedded with gun racks, so it is extraordinarily heavy, fortunately, there is a crane in the factory, and the crane is used to directly lift the fuel tank to the cart at the door, and then it is pushed outside.

"Flood!" After the fuel tank is removed, the fuel tank mouth is open, and in a few days, the inside has been scattered, so the step of blowing high-pressure air can be saved, and it can be welded by directly filling water.

At the same time, pour water into it, so as to determine what exactly is leaking.

Wang Erzhu went to pick up the water and fill the water tank, while Qin Zhenhua pushed the trolley again, entered the workshop, and pushed an electric welding machine out.

In the factory, the commonly used 380 volt three-phase electric welding machine, the burn-through current is large, the welding efficiency is high, however, for the thin steel plate of the oil tank, the welding is very easy, the current is increased, it is easy to burn through, so a small 220 volt welding machine is enough.

Pushed out, wired on the wiring board, and carried the welding gun, Wang Erzhu also completed the task, and the place where the oil leak was leaked was also marked, and Qin Zhenhua was about to move towards the fuel tank.

At this time, just outside the two of them, there was a circle of old masters, and when their eyes glanced over, they were obviously distrustful, Qin Zhenhua, are you okay? When the time comes, it's up to you how you look foreign!

If you disassemble the machine, you have mastered the know-how, you can find the cause of the failure, and get twice the result with half the effort, then electric welding is not so easy.

It's a craft job! The general apprentice, to practice for a few years, to be able to master the know-how of welding, this requires basic skills, there is no work in the hand, the welding gun in the past, either it does not catch fire, or it burns a hole, and it comes out of slag welding.

"Zhenhua, the safety protection in the factory should be kept in mind, and when welding, various protective devices should be worn." Zhao Guodong hadn't left yet, he was very concerned about Qin Zhenhua, at this time, he was carrying a fire extinguisher in his hand, obviously afraid that Qin Zhenhua would be in danger, and he would hurry up to rescue him when the time came.

Although Qin Zhenhua has had many experiences, Zhao Guodong has never seen him, he is Lao Qin's only son, if something happens to him, how can he explain to Lao Qin.

"No need." Qin Zhenhua said: "A few things. If I were to weld the car body, I would be fully dressed. ”

How many times? What you said is too simple, right? Li Changjiang pursed his lips, and before he could speak, he felt a burst of dazzling eyes, and couldn't help shouting something in his mouth that anyone would shout when they were frightened: "Nima! ”

No one was defenseless, thinking that Qin Zhenhua was going to compare, but as a result, the welding torch was directly lit.

The principle of electric welding is very simple, the welding torch clamps the electrode, puts the iron on the object, and then gently touches and separates to form a void, in the void, the spark discharges, the heat generated, melts the electrode and the two sides of the object, and finally fuses together.

This distance must be maintained, and the hand must move slowly, otherwise if it continues to move, it is a big hole, if it moves too fast, it has not completely melted, it is welding slag.

Apprentice, when learning welding in the first year, can not appear holes or welding slag, that is quite perceptive, now, Qin Zhenhua came up to weld the fuel tank, nine times out of ten, will burn the fuel tank into a big hole.

At the same time, when welding, a large amount of smoke will be generated, including carbon monoxide, carbon dioxide and hydrogen sulfide and other harmful gases, inhaling too much, is harmful to the lungs, and the sparks splashed out of the temperature are very high, and they may also ignite themselves, so special safety helmets with anti-ultraviolet glass, overalls, thick welding gloves, that is a must.

Now, Qin Zhenhua was wearing work clothes and gloves, and he clicked it directly, which made everyone's eyes tremble! It's like when I played CS games in later generations, I was thrown a flash mine. While everyone was cursing, they quickly closed their eyes and turned their heads, if their eyes were not good, and they had been exposed to this thing for a long time, they would have eye disease.

Zhao Guodong narrowed his eyes and didn't dodge, he was still worried that the fuel tank would catch fire, if the flames really burst out, then his fire extinguisher would be activated quickly.

He was prepared in advance, so when he squinted from the inside of his eyes, he saw Qin Zhenhua's operation clearly, Qin Zhenhua turned his head when he clicked over, that's right, when Qin Zhenhua was welding, he didn't look at the solder joint at all, it was the solder joint with his back to it!

Although he turned his head, it was like he had a back eye, the sparks of the welding were flying, and the hand was moving forward rapidly, and when the hand was moving, it was still shaking.

In total, it was three seconds, and the spark of electric welding just came out, slipped forward, and then stopped, and then, Qin Zhenhua put down the welding gun: "Okay!" ”

There was no fire, no harm to himself, even his breath was closed, and the smoke only dispersed. Qin Zhenhua began to retract the welding handle casually, and felt a little burning on his hands, there was no way, what he wanted was this effect, he wanted to use his own strength to win the glory of the technical expert in the workshop.

That's good? You're talking nonsense, aren't you? If this can be welded well, then how can the masters live!