Return to the red age

For such a simple matter, Sun Aiguo made a quick trip to a large piece of wasteland behind the factory to complete the formalities.

"Ramped earth wall?" The next day, Sun Aiguo pointed to a large piece of wasteland and asked Liu Hai to do what he wanted. Unexpectedly, Liu Hai wanted 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 over and said in a few words: "You will do whatever Chief Liu tells you to do."

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?"

"May I?"

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

"Okay." Liu Hai looked at it and saw that a road was built from the other side of the factory. He thought that his laboratory might have finished products that needed to be shipped out. The interior of the motorcycle factory is not easy to change. After all, it is impossible to demolish the house and let you build a road now. 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.

It's okay to go to the city...ahem, just go to the toilet.

At noon, Liu Hai went to the Polytechnic University to deliver wine and fifty pounds to Petrov, and then 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.

Liu Hai is also looking forward to his own laboratory. 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 in the wall behind where the coal was originally piled.

While Liu Hai asked the factory director for various materials, he also made his own molds, mainly hydraulic pumps.

Li Dali and the other three are basically still in the maintenance department. Manufacturing a 100-ton hydraulic press is not very complicated.

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.

A 500-ton hydraulic press is not a big problem, but the subsequent 1,000-ton, 1,500-ton, or even 5,000-ton, 9,000-ton hydraulic presses will require large hydraulic presses.

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.

At that time, this aircraft made its first flight, but there were too many problems. Take the aircraft beam. The aircraft beam is round in cross-section like the 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 cast parts is much better, but 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?

Liu Hai set up a laboratory for another purpose. Many parts need to be carried out under constant temperature conditions. Not to mention constant temperature, at least it cannot be in an environment with air leakage. There are only two parts, one on the ground and one on the shelf. Small accuracy changes.

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 a 500-ton hydraulic press like Liu Hai is not that demanding, it is definitely good to have a dedicated room.

Moreover, there will be subsequent material testing, which also requires an independent environment. The biggest advantage of an independent environment is that others do not know what you are doing in it...

I don’t know how many times you tried it, but it just worked out in the end.

The motorcycle factory was carrying out construction work, and the surrounding factories were not surprised. The people from the construction department first transported various materials to the back, most of which were city wall bricks. Liu Hai murmured in his heart: "In a few years, this may still be a place for Internet celebrities to check in." .”

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

The people in Big Brother are a little confused. A while ago, they were very anxious. Why are they not anxious now? They drink every day, wake up the next day after drinking, and then continue drinking.

"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 back first, and then slowly send us food." Of course, the people in Big Brother 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 a master in the factory. No one dares to disturb him. He is given any materials he wants without asking.

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

It can be said that high-end material technology is open for you to see. You can’t even learn it. Just take a temperature process. One second longer in a certain link will make the difference, not to mention that there will be some additives and different materials will heat up. The methods are 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 from outside.

Liu Hai put down what he was holding and asked, "Director, what's the meeting?"

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