Jiang Yan was directing the two apprentices to screw the engine. After seeing the two people finish screwing, he said, "You two remember this screw for me, remember to turn it three times, and then turn it around." ”

"Xiao Jiang, why do you still need to turn around, isn't it the tighter the screw, the better? If you twist two and a half turns, it's fine, but it's not better to just twist in half. ”

Before the two apprentices could speak, there was a voice of consultation behind Jiang Yan.

After hearing this voice, as soon as Jiang Yan turned around, he saw a large number of leaders appear behind Jiang Yan, including Liu Xufeng, Minister Liu and Minister Zheng, and the person who asked the question was Minister Zheng.

After listening to Minister Zheng's words, Jiang Yan thought about it and said: "Minister Zheng is like this, after the screw is tightened, in order to prevent loosening, an additional preload force should be applied, so the preload force will be eliminated after loosening half a circle, and the screw will be in elastic deformation after tightening, especially in the case of high temperature and vibration load, long-term continuous pressure will produce creep, and after the screw becomes plastic deformation, its strength will drop greatly or even fail." After the deformation of the screw under continuous pressure or in the elastic deformation, the probability of plastic strain and failure is greatly reduced, so that the screw can maintain continuous high-strength pressure, and direct twisting of two and a half turns can not achieve such an effect. ”

As the deputy director of the First Machinery Department, Minister Zheng still knows some mechanical manufacturing principles, and Jiang Yan fully understands the trick as soon as he says this.

"You came up with this yourself." Minister Zheng asked.

"No, this is when I was studying abroad, I heard a worker master say that there is such a procedure in Hansiguo's operation manual."

"It seems that the technological gap between us and foreign countries is not ordinarily large, and a small screw has been studied so thoroughly."

After listening to Minister Zheng's words, Jiang Yan said: "Minister Zheng, although the gap between us and them is relatively large, I always believe in our country and people, and I believe that one day, we will catch up, so that other countries will no longer dare to underestimate us." ”

"What Xiao Jiang said makes sense and is very conscious, and I also believe that one day we will catch up with them." Minister Liu, who didn't speak, also said a word.

Next, Jiang Yan introduced to the leaders while installing those accessories on the cylinder, and after a while, a complete engine appeared in front of everyone's eyes, Jiang Yan checked it and made sure it was correct.

Then he turned his head to the onlookers and said, "Ladies and gentlemen, the engine has been tested and the engine has been manufactured and can be tested. ”

"Then let's start testing."

Hearing the words, Wang Dabao, who was next to Jiang Yan, brought over a bucket of gasoline and poured it directly, and after ignition, the engine started smoothly.

Seeing the smooth start of the engine, there was applause in the workshop.

At this time, Liu Bu said to all the workers: "The success of the engine manufacturing is a milestone, which lets foreigners know that we can still do what they can do." ”

As soon as his words fell, there was a round of applause in the workshop.

"All the workers and masters have worked hard, Director Liu has prepared a celebration banquet for everyone, and the ministry will also give some rewards as appropriate, and you can't leave blood and tears for all the heroes."

"Thank you, Minister Liu." As soon as I heard that there was a celebration banquet to eat, the workers were naturally very happy, although all the workers here are middle and senior workers, and the wages are also a lot, but you may not be able to buy all of them if you have money this year, and this celebration banquet must have a few meat dishes.

After coming out of the workshop, Jiang Yan followed the leaders to the conference room.

After everyone sat down, Minister Liu spoke first: "Little Jiang! This is thanks to you. Without you, this engine couldn't have been built so quickly. ”

Hearing Minister Liu's words, Jiang Yan replied modestly: "Minister Liu, you are serious, I just designed them, and it was the workers concerned who made them, and they were the main force." ”

"You little slippery head, modesty is a good thing, too modesty is a naked show-off."

Minister Zheng's remarks caused everyone to burst into laughter.

"You can't erase it in the Ministry of Merit, don't say anything else, you can't run away if you give you a model worker at the end of the year, your kid has done a lot of great things since he came back, it seems that your kid is really as deep as Lao Luo said!"

"You kid give me an honest explanation, what skills do you have, you can't hide it for us in the future, even if you have the ability, we will set up a stage for you to sing."

Hearing Minister Liu's words, Jiang Yan made Jiang Yan have no way to answer, so he could only smile and scratch his head.

"Xiao Jiang, can this engine you designed achieve the purpose of mass production?"

Hearing Minister Liu start to talk about business, Jiang Yan's face turned straight, and he thought for a while and said: "According to the current plan, if the supply of materials is sufficient, there should be no problem with about 500 units a month." ”

"What if we enlarge the factory tenfold! Can it reach a monthly output of 5,000 units? ”

Hearing Minister Liu's words, Jiang Yan replied with a wry smile: "Minister Liu, this is not a simple arithmetic problem, which involves the proficiency of workers, the manufacturing capacity of machines and other factors, all of which restrict the production of engines. ”

"It seems that my expectations are a bit high, and now there is a shortage of transportation equipment everywhere in the country! Importing from SL will consume foreign exchange, which we are not rich in the first place. Alas! ”

Hearing Minister Zheng's words, everyone fell silent.

The country now does not have the ability to produce cars, a large part of the cars are captured from the enemy, some have even reached the standard of scrapping, can only be used for patchwork, a large number of imports from SL is unrealistic, for the transportation capacity of the Ministry of Communications people are not less worried, all the pressure has come to the Ministry of Machinery. Whoever calls the Ministry of Machinery is responsible for the country's industrial manufacturing, and the Ministry of Communications does not look for them to find anyone.

Seeing the silence of everyone, Jiang Yan said: "All this must be solved, at present, we have produced a suitable engine, and it will not be far from the production of cars, one day, our country's road is running with our own cars, and we no longer have to worry about the lack of capacity." ”

Hearing Jiang Yan's words, Minister Zheng smiled and said: "Although I haven't had much contact with you, I found that you always have incomparable confidence in our country, and we old guys from revolutionary backgrounds are not as good as you." ”

Minister Zheng's words, Jiang Yan couldn't answer at all, could he say that he was from the later world? Can you tell everything that comes after? Even if they say it, they don't necessarily believe it.

Our country went from being poor at the time of its founding to becoming a second-world economy in the world, and all the countries of the world consider it a miracle.

However, Jiang Yan knows the hardships in the middle, and perhaps only those who have actually experienced it can understand the ups and downs, because no kind of success is something that happens casually.

(End of chapter)