Courtyard light

Chapter 119 My own laboratory
It was such a simple matter, Sun Aiguo made a trip and completed the formalities. There was a large piece of wasteland behind the factory.

"A rammed earth wall?" On the second day, Sun Aiguo pointed to a large piece of wasteland and asked Liu Hai to do what he wanted. Unexpectedly, what Liu Hai wanted was a rammed earth wall, which was a bit unexpected.

"Director, rammed earth walls are cheaper to build, and living in rammed earth walls is more comfortable than brick walls. Of course, the foundation must still be made of stone." Liu Hai wants to build a plant factory and will test it inside in winter. Rammed earth walls have better insulation than brick walls. much better.

"That's true." Sun Aiguo agreed with Liu Hai's statement.

"But the wall needs to be built first, otherwise you won't even know if something has been stolen, and it's better to keep it a secret." Liu Hai looked at the large open space. Isn't this the experimental field for next year.

Sun Aiguo nodded, and then called the people from the construction department, and said in a few words: "Whatever Section Chief Liu tells you to do, you will do it."

Liu Hai explained his general idea, and the head of the construction department thought for a while: "Brother, do you want to build a road so that materials and other materials can be easily accessed in the future?"

"is it okay?"

"Building a road from here will also make it easier for us to transport materials."

"That's fine." Liu Hai looked at it and found that he was building a road to enter from the other side of the factory. He thought that there might be finished products in his laboratory that need to be shipped out, and the interior of the motorcycle factory is not easy to change. After all, it is impossible to demolish the house now and let you build roads. of.

The entire area is at least twenty acres, so the construction department started collecting bricks directly. At this time, the materials were planned. The hydraulic press factory was under construction, but it was difficult to get the materials. The construction department raised part of it themselves and collected the bricks. How many bricks were there per piece? money.

Go to the city if you have nothing to do... Ahem, just go to the city.

At noon, Liu Hai went to the Polytechnic University to deliver wine to Petrov, [-] catties, and took his junior sister for a walk before returning.

"Soilless cultivation vegetable factory." This is what Liu Hai is planning to test. Soilless cultivation technology is actually not that difficult. The reason why soilless cultivation is needed is because of the frozen soil in Big Brother.

It is unrealistic for us to build greenhouses now. Why? Because the cost of plastic film is very high, it cannot be applied on a large scale. There is also insufficient electricity and ventilation, and many places are reluctant to turn on the lights when there is electricity.

For his own laboratory, Liu Hai is also looking forward to it. He goes to the back every day to see it. It is not very convenient to go to the laboratory, because there is a door opened on the wall behind the original pile of coal.

On the one hand, Liu Hai asked the factory manager for various materials, and on the other hand, he made molds by himself, mainly hydraulic pumps.

The three of Li Dali are basically still in the maintenance department. The 100-ton hydraulic press is not very complicated to manufacture.

The 500-ton machine is a bit complicated, not only in terms of accuracy, but also in terms of many parts of the entire hydraulic press that need to be subjected to multiple repeated pressures. Under this pressure, the accuracy of the pressed parts is guaranteed.

The 500-ton hydraulic press is not a big problem, but the subsequent 1000-ton, 1500-ton, or even 5000-ton, 9000-ton hydraulic presses are required.

Super hydraulic presses are indispensable in the high-tech manufacturing process. Some people say that our dismantling of the company was due to decision-making, but it is not true.

This plane took its first flight back then, but there were too many problems. Let’s take the aircraft girder, which is round like the cross section of an aircraft.

This requires tens of thousands of tons of hydraulic presses to be formed at one time, but we did not have one at the time. What we used was splicing. Just like some parts of the 100-ton hydraulic press manufactured by Liu Hai, they were originally cast in one piece, but subsequent processing was not possible, so they were separated into two halves and used bolts. fixed.

The overall bearing capacity of one-piece casting parts is much better, and the bearing capacity of separate parts is not good.

The test flight was successful, but with so many problems, who would dare to fly commercially?Whose fault is it if something goes wrong?
There is another purpose for Liu Hai to set up a laboratory. Many parts need to be carried out under constant temperature conditions. Not to mention constant temperature, at least not in an environment with air leakage everywhere. There are only two parts, one on the ground and the other on a shelf. Minor precision variation.

The assembly of aircraft and large precision machining centers is a very deep knowledge. Even if it is a foreign high-precision machining center, if you disassemble it and put it back as it is, the accuracy will not be achieved.

Although Liu Hai's 500-ton hydraulic press is not so harsh, it is definitely good to have a special room.

Moreover, there will be material tests in the follow-up, which also require an independent environment. The biggest advantage of an independent environment is that others don't know what you are doing in it...

I don't know how many times you have tried it, but it's fine if it succeeds in the end.

The motorcycle factory is building a lot of construction, and the surrounding factories are not surprised. The people in the construction department first transported all kinds of materials to the back, and the most are city wall bricks. .”

After Sun Aiguo took over the task of testing the 500-ton hydraulic press, the pace of negotiations with the big brother slowed down.

The people of Big Brother were a little puzzled. A while ago, they were in a hurry, but now they are not in a hurry. They drink every day, wake up after drinking, and then continue drinking the next day.

"Don't drink. We are here to negotiate. Do you still want hydraulic presses? These hydraulic presses are hot commodities. If you don't want them, they will be sold to other brother countries." The man from Big Brother asked us with a mouth full of alcohol. Butt people.

"Sir, we are currently in the process of harvesting in the autumn. We also want to harvest the grain as soon as possible and then trade with Big Brother." Our people don't actually know the details, but that's what the people above said.

"You can buy the machine first, and then slowly send us food." Of course, the Big Brother people don't know what we think.

Some of Big Brother's 100-ton hydraulic presses are old ones from World War II, but the price is not much different from new ones. These things are expensive, and the freight is even more expensive. In addition, the 500-ton hydraulic press is even more expensive. As for the larger hydraulic press , there are, but not many. They are all old ones that Big Brother dismantled from itself a few years ago. If they break, they need to be repaired by Big Brother's mechanics.

Liu Hai is in the maintenance department, just like the masters in the factory. No one dares to disturb him, and he will give him any materials he wants without asking what he is doing.

The material technology is very complicated, from low-end ordinary steel plates to aircraft carrier decks, and then to crystallized materials for aircraft engines, it is a very deep, very deep subject.

It can be said that the high-end material technology is open for you to see, you can't learn it, just take a temperature technology, a certain link will be different for a second, not to mention there will be some additives, different materials will heat up The way is also different.

Liu Hai is experimenting with new materials. There is no way. The 500-ton hydraulic pump must use new materials. Of course, it can be used without it. The accuracy will not be good after a few days, the speed will not be good, the pressure will not be reached, etc.

"Xiao Liu, it's a meeting." Liu Hai was busy in the maintenance department when he heard Sun Aiguo shouting outside.

Liu Hai put down the things in his hands, and asked, "Director, what kind of meeting are you having?"

"The workshop has assembled the first 100-ton hydraulic press."

(End of this chapter)