"It seems that the problem is not that the strength of the pipe is not enough." Wu Ruihua came from the first branch factory, looked at the pipe behind it with a big hole, and said with a frown.

In fact, the strength of the original tube last time was not low, according to the calculation, the pressure was strong enough, and after the first explosion, everyone's most direct speculation was that the strength was not enough, and it continued to strengthen, but now, it has failed.

Those technicians of the diesel engine factory in the coal province directly patted their butts and left, leaving behind a machine factory, which also wanted to solve the problem.

Wu Ruihua looked at the broken tube, and kept thinking about a solution to the problem in his mind.

"What's wrong?" At this moment, Qin Zhenhua also came over.

He came out of the welding workshop, and every day, he would personally operate with Lu Feng, experiment several times, and then test to see if the strength and the like meet the requirements, and then study the new welding process, and every time he came out, he would feel uncomfortable in his lungs.

Welder is also a type of work that has a great impact on the body, even if it is hot weather, you have to cover yourself tightly, if the welding spark falls on your body, it will directly burn and blister, and after a long time, the skin will have problems.

If you don't prevent it, your eyes will be hurt if you come into contact with too much light, and the ultraviolet rays inside are too strong.

Of course, the biggest problem is the smoke during welding, the welding wire melts, the solder is welded, and at the same time, it will volatilize a pungent smell, and after a long time, the lungs will inhale too much, and it will be quite uncomfortable.

Now, Qin Zhenhua was breathing in the air outside in a big gulp while looking at the situation here.

"It's strange to say, on our storm tank, there is no problem, but when it comes to this 80 tank, it starts to make ghosts." Li Changjiang said: "There must be something wrong with this that we don't know. ”

It also makes sense that the people of the diesel engine plant in the coal province are gone, and in the eyes of the people, it is good to test the car on the bench, but it will break down when it arrives, not because of them, but because of the tank.

Of course, this kind of uncooperative attitude is more psychological, and the other party's psychology is resistant, so naturally it will not be truly integrated here.

"yes, we'll have to compare." Qin Zhenhua said: "Master Zhang, when you were testing the car, did you think there was any difference between these two tanks? ”

Zhang Xiangqian recalled it seriously, and then said affirmatively: "This tank, when it starts, it feels more noisy." ”

Originally, when it was designed, the two chassis were actually about the same, but as a result, the tanks on this side were more noisy, what does this mean?

Qin Zhenhua was thinking rapidly in his mind, and suddenly, his eyes opened, and he said, "Turn on the engine, let's see how it vibrates." ”

Why do tanks get noisier? The sound is caused by vibration, and this increase in noise may be caused by the increased vibration of the engine.

"However, the tube of the supercharger has cracked." Someone said, "Do we need to replace the tubes?" ”

"No, the tube is broken, it's a self-priming engine." Qin Zhenhua said: "Idle first, let us see the situation." ”

The turbocharged engine relies on the exhaust to push the blades and drive the fan to drum in more air, while in the case of idling, the pressure of the exhaust is not enough, so the engine cannot suck in more air, which means that the turbocharger of the engine does not work, at this time, it is just a naturally aspirated engine, which is quite simple.

Now, Qin Zhenhua asked him to idle first to see the situation, Zhang Xiangqian came to the cockpit in front, and in the sound of the compressed air starter, the engine started.

The moment it started, I saw that the engine was running as if it was on a trampoline, buzzing and swaying up and down on the ground, and the shaking movement was so strong that it was like jumping and dancing.

As the engine vibrate, I saw that the broken trachea was also shaking violently.

It's clear at a glance.

This tube was not burst open by too much pressure, but because the vibration was too great, it was violently shaken open!

If this is a three-cylinder engine, then the congenital irregularity causes it to vibrate so violently, forget it, the problem is, this is a V12 engine, and the smoothness of this engine should be quite good.

"Prepare the crane, lift the engine, the problem should arise on the rubber pads of the engine mount." Wu Ruihua said.

The reason why the engine vibration is so huge is because during the assembly, the rubber pad on the engine bracket below was originally broken!

As long as the engine starts, it will vibrate, in order to avoid the vibration transmitted to the engine, therefore, the engine and the car body are not rigidly connected, the engine is fixed by the foot bolts, and the middle of the foot bolts is connected in series with a thick rubber gasket, which can play a role in reducing vibration.

This tank was assembled by the people in the R&D room, how they assembled it, everyone is not clear, since it has been assembled, so it has not been moved, and now, when Wu Ruihua judged that it was the rubber mat problem below, Zhang Xiangqian had already fallen in, observing the situation below, sure enough, I soon saw the problem, among the eight anchor screws fixed below, there are two cushioned rubber pads, the thickness is obviously different from the others!

"How do these people work!" Seeing this situation, everyone couldn't help but show anger, this kind of small mistake will bring big trouble, if it weren't for Qin Zhenhua's careful study, I'm afraid it would take a long time for everyone to find the cause of the failure!

In the production and assembly, a small problem will also cause consequences, these people are careless, what to do, can not be authentic!

The engine is not hoisted as a whole, and it is not in accordance with the original design idea at all, so it has become a trouble to change such a small rubber pad, everyone is hungry, and they fought until four o'clock in the afternoon, and finally replaced, and at this time, Jin Yonglin and others are late.

"Hmph, these people are simply here to waste the food of our first machine factory, it's better to just send them back, anyway, if they encounter problems, they won't find a way to solve them with us." Someone looked at those people with disgruntled eyes and whispered.

Qin Zhenhua's gaze was also unusually serious, and he saw that these people were wearing a delicately shaped electronic watch on their arms!