There are many simple things to ask for land, Sun Aiguo ran a trip, and the formalities were completed, and there was a large piece of wasteland behind the factory.

"Rammed earth walls?" The next day, Sun Aiguo pointed to a large piece of wasteland and asked Liu Hai to do what he wanted, but he didn't expect Liu Hai to ask for a rammed earth wall, which was a bit unexpected.

"Factory director, rammed earth walls are cheap to repair, and rammed earth walls are more comfortable to live in than brick walls, of course, the foundation still needs to be made of stone." Bangs want to build a plant factory, and test it in the winter, rammed earth walls are much better than brick walls.

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

"But the wall must be built first, otherwise you won't know if something is stolen, and it's better to keep it secret." Bangs looked at the large open space, isn't this next year's test field.

Sun Aiguo nodded, and then called the people from the construction section with a few words: "Section Chief Liu asked me to do it, you just do it." ”

Liu Hai said his general thoughts, and the section chief of the construction section thought for a while: "Brother, do you want to build a road, and the materials will be convenient to enter and exit in the future?" ”

"Is that okay?"

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

"That's fine." Liu Hai looked at it, he was building a road from the other side of the factory, and thought that he might have finished products that needed to be shipped in the future, and the inside of the motorcycle factory was not good to change, after all, it was impossible to demolish the house now for you to repair the road.

The whole area is at least 20 acres, the construction section directly began to collect bricks, at this time the material is planned, just the hydraulic machine factory is under construction, but the material is not good to approve, the construction section will raise a part of itself, on the bricks, how much is a piece.

It's okay to go to the city...... Ahem, just pull it up.

At noon, Liu Hai went to the University of Technology, gave Petrov wine, gave fifty catties, and took the little sister around before coming back.

"Soilless vegetable factory." Bangs is ready to experiment with this, soilless cultivation technology is actually not very difficult, the reason why soilless cultivation is because of the frozen soil over there of Big Brother.

We are now building greenhouses, it is not realistic, because of what, because the cost of plastic film is very high, there is no way to apply it on a large scale, and there is not enough electricity, ventilation or something, and many places are reluctant to turn on the lights when there is electricity.

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

While banging on the factory to ask the factory director for various materials, he made his own molds, mainly hydraulic pumps.

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

500 tons is a bit complicated, not only the accuracy, but also the pressure of many parts of the entire hydraulic press to be repeated many times, under this pressure, to ensure the accuracy of the pressed parts.

The 500-ton hydraulic press is not a big problem, but the 1000-ton, 1500-ton, or even 5000-ton, 9000-ton hydraulic press is needed in the back.

Super hydraulic press is indispensable in the high-tech manufacturing process, some people say that we were out of the horse because of the decision, but in fact it is not.

At that time, this aircraft was the first flight, but there were too many problems, so I took the plane girder, and the plane girder was the round cross-section of the aircraft.

This requires tens of thousands of tons of hydraulic press to form at one time, and we didn't have it at that time, what was used was splicing, just like some parts of the 100-ton hydraulic press made by bangs, which were originally cast as a whole, but the follow-up processing was not possible, so it was divided into two halves and fixed with bolts.

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

The test flight was successful, but there were so many problems, who would dare to fly commercially? Who's to blame?

Bangs make a laboratory, there is another purpose, many parts need to be carried out under constant temperature conditions, not to mention that the constant temperature at least can not be in the environment of air leakage everywhere, just two parts, one on the ground, one on the shelf, there are slight precision changes.

Airplanes, large-scale precision machining centers, assembly is a very deep knowledge, even if it is a foreign high-precision machining center, you disassemble the original state and install it back, the accuracy will not be reached.

Although the 500-ton hydraulic press of Bang Hai is not so harsh, it is definitely good to get a special room.

Moreover, there is a follow-up material test, which also requires an independent environment, and 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've tried, but in the end, it's just a success.

The motorcycle factory is building a lot of construction, and the surrounding factories are not strange, and the people in the construction department first transported all kinds of materials to the back, the most of which are city wall bricks, and Liu Hai muttered in his heart: "After a few years, maybe this place will still be an Internet celebrity check-in place." ”

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

Big Brother people are a little puzzled, some time ago, weren't they quite anxious, why aren't they in a hurry now, they drink every day, wake up the next day after drinking, and then continue to drink.

"Don't drink it, we're here to negotiate, do you still want hydraulic presses, these hydraulic presses are hot goods, if you don't want them, you will sell them to other fraternal countries." Big Brother's people, with a mouth full of wine, opened their mouths to ask the people we docked.

"Sir, we are currently working on the autumn harvest, and we also want to collect the grain as soon as possible, and then trade with Big Brother." Our people actually don't know the specifics, anyway, that's what the people above said.

"You can buy the machine back first, and then slowly send us food." Big Brother people certainly don't know what we're thinking.

Big Brother's 100-ton hydraulic press, some of them are old guys from World War II, but the price is not much different from the new, just these things, the price is expensive, the freight is more expensive, and the other 500-ton hydraulic press is more expensive, as for the larger hydraulic press, there are, but not many, they are all old ones that Big Brother dismantled from his side a few years ago, and they still need to be repaired by Big Brother's mechanics.

Bangs are in the maintenance department, just like the master in the factory, no one dares to bother, and whatever materials are given directly, and they don't ask what to do.

The material process is complex, from the low-end ordinary steel plate, to the aircraft carrier deck, and then to the crystallized material of the aircraft engine, it is a deep, deep discipline.

It can be said that the high-end material process is open for you to see, you can't learn it, just take a temperature process, a certain link is different for one more second, not to mention that there will be some additives, and different materials will be heated in different ways.

Bang Hai is testing new materials, no way, 500 tons of hydraulic pump must use new materials, of course, you can not use it, with a few days of accuracy, speed, pressure can not reach and so on.

"Xiao Liu, it's time for 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 hand and asked, "Factory director, what is the meeting?" ”

"The workshop was equipped with the first 100-ton hydraulic press."

(End of chapter)