"I've wronged you all this time. ”

If you don't want to go, you can't help but feel a little guilty, and if you feel guilty, your mouth is a little unfavorable, so after holding it for a long time, Meng Jianye only held back such a sentence, and was thinking about saying something more comforting, Zhen Jia swallowed the rice in his mouth hard, but he laughed and said: "What grievances are not wronged, don't be deceived by Sun Hongjie's pitiful appearance of the bastard, that kid has a bitter and hateful face, as if he has been wronged, and he can wake up with a smile when no one is there." ”

Hearing this, Meng Jianye couldn't help but be a little confused, and said in his heart that he had abused Sun Hongjie to the point that he was about to become a Xiang, and he could still sleep and wake up? Could this be a masochist?

"Alas, you are usually so smart, I have said it so bluntly, why don't you understand?" Looking at Meng Jianye's ignorant appearance, Zhen Jia was anxious first: "Technology, unique technology, what benefits, wages, punishments, none of them can compare to the technology that can last a lifetime!"

As soon as these words came out, Meng Jianye suddenly dared to love Sun Hongjie and Zhen Jia didn't care about any criticism or not, what they cared about was the noise reduction technology of the power system he taught.

These things may not be a big deal in the previous life, but in the eighties, which were not very advanced in various fields, these noise reduction technologies were really high-tech.

You must know that ship shock absorption and noise reduction has always been the key technology for the development of the shipbuilding industry, not to mention the general shipyard, even the large factories in the north do not know this aspect of the people, and often are cadres with high-tech titles.

Although Sun Hongjie and Zhen Jia have never seen the world, they also know what it means to be proficient in noise and shock reduction technology, even if they can't become cadres, a senior master's name will definitely not be able to run, so what punishment and criticism are all floating clouds, and learning vibration and noise reduction technology is the king!

After understanding this truth, Meng Jianye's mouth twitched unnaturally a few times, who said that Sun Hongjie was like a stunned person all day long, stupid, and refined.

"I can tell you, don't tell Xiaojie these words, I don't want him to talk about it all day long!" Seeing Meng Jianye's treacherous laughter from time to time, Zhen Jia couldn't help but chuckle in his heart, and quickly reminded him, but Meng Jianye waved his hand indifferently: "Don't worry, I'll see how long this product can last, and if you want to get something from me, let's have five seafood dinners first." ”

……

Sun Hongjie didn't hold back for long, to be more precise, he ran out sweaty in less than an hour after entering the construction workshop, and filled his stomach with some food indiscriminately, so he cheekily went to find Meng Jianye.

As for the reason, it is very simple, he can't get the noise-reducing shell of the marine diesel engine anymore.

It's not that it's so difficult to add a shell to the outside of the engine, the key is that the sound insulation material in the shell is really a headache, no way, there are too many materials needed, Sun Hongjie ran out dizzy after more than an hour.

Of course, he can't say this to outsiders, otherwise it will be a loss of face?

Meng Jianye came today for the noise reduction shell, preparing for on-site demonstration and guidance, first taught Sun Hongjie and Zhen Jia, and after the final power and propulsion assembly test passed, it can be installed on the ship.

Which Cheng thought that Sun Hongjie was stimulated by her sister at noon and was going to do it alone, and kept saying that he wouldn't even let him hear the sound of a fart, Meng Jianye didn't know the inside story, but now that he knew it, he might still be used to it, anyway, there is time today, so he will spend it with Sun Hongjie.

Sun Hongjie is not stupid, it is useless to play treasures, sell cuteness and thicken his skin, he knows that most of his careful thinking is detected by others, but he is also a bachelor, since the soft one is not good, he will go to the hard one, and he doesn't want to directly open the price code of three seafood dinners.

Meng Jianye didn't talk nonsense, stretched out five fingers, no two prices.

Sun Hongjie was playing treasure for a while, selling cuteness and thickening his face, but it was all useless, five meals were five meals, seeing that Meng Jianye did not discuss with him at all, Sun Hongjie had no choice but to grit his teeth and nod his head and agree.

Meng Jianye smiled and followed Sun Hongjie to the construction workshop.

……

"This time, we used comprehensive noise reduction for the powertrain, in addition to the series double-layer shock absorber, it is the noise reduction shell that we need to do now, and the key to the noise reduction shell is these noise reduction materials in front of us. ”

In the construction workshop, Meng Jianye pointed to several materials on the ground, immediately squatted down, picked up a smooth stone slab, and continued: "This board is called a pumice stone slab, which is specially made of screened pumice powder, which not only has a sound insulation effect, but also imitates moisture and is fire-resistant, which is a good material for the inner wall board of the shell. ”

As he spoke, he picked up a piece of cotton wool-like cloth and said again: "This is an asbestos cloth, this thing is known to everyone, not only heat-resistant but also heat-insulating, and the sound insulation is also very good, especially when used with wool felt, the effect will be doubled." ”

While speaking, Meng Jianye tore off a piece of wool felt next to him and shook it at a few people in front of him, then straightened up and sighed: "Now there are only so many things we can use, but fortunately, the engines of the cruise ship are only two 240 horsepower, and these materials are enough." ”

Meng Jianye had to sigh, according to his original plan, the noise reduction shell of the engine should be best made of vermiculite slabs, slag wool and slag boards as the main materials.

Because the sound insulation technology of these three materials is better, even ships in the previous life are widely used, but these three materials are not available in the province where the industry is not developed, even in the whole country.

Because whether it is slag wool or slag board made on its basis, the required process requirements are very high, and some large domestic factories can make it, but the limited output has long been ordered out by the special department, and it is not the turn of such a small factory as Endeavour.

As for vermiculite slabs, not to mention, it is a material made of special mica, due to the domestic key hot pressing and cold pressing technology is not up to standard, the output of vermiculite slabs is extremely scarce, not to mention, the quality is not up to par, basically rely on imports to obtain, than slag cotton is more difficult to get.

So after some fruitless searching, Meng Jianye could only helplessly lower the standard of the noise reduction shell, no way, his theory, creativity and even craftsmanship are no problem, but the material it does not allow.

It can be said that a piece of material is difficult for a hero, nothing more than that!

Fortunately, secondary materials such as pumice slabs and asbestos cloth are easy to find, otherwise Meng Jianye would have to use wool felt, wood shavings and cardboard as the main materials for sound insulation.

Sun Hongjie and Zhen Jia and others did not have the helplessness of Meng Jianye who had to be flexible because of the material, they wrote down the name, attributes and sound insulation of the material, and then looked at the steel frame on one side, at this time Meng Jianye held up a pumice stone slab and said to a few people: "You see, the process is not difficult, I will only do it once!"