Return to the red age

People in the village have known about it for a long time. They ate wild boar meat last night. How could they not know? But this is not a problem. It exists in the village and in the township.

In fact, in any era, achievements are all about, but some are real achievements and some are just to fool the people.

"Tsk, tsk, cadre Liu from your village is so good at marksmanship?"

"Town chief, you haven't seen that Comrade Liu Hai occupied the pass, and not a single wild boar or leopard escaped. Such a big little wild boar has half of its head missing."

"Tsk, tsk, that's awesome. Next time Comrade Liu Hai comes back, call me and let me know you." There has been some action in the township recently. Wild animals frequently damage crops and livestock. Before winter, the township is planning to organize a hunting. On the one hand, it increases collective income, improves villagers' food, and eliminates potential threats.

But there is a premise, which is to ensure everyone's safety, not only from guns, but also from wild beasts attacking people.

Some people say that there has been no military service for so many years?

Yes, there are, but the quality of the fur is important. Just like the two leopard skins of the village chief this time, they are special grade. You have to make two holes, and they are useless.

The township chief saw the appearance of the leopard skin and decided to see Liu Hai. After all, it was rare to see someone with such good marksmanship.

"Whose leopard skin is it? It's damaged by the sun." At this moment, someone shouted loudly outside the door.

"Ours." The person brought by the village chief said quickly.

"Such a good skin, hurry up and get it." The person in charge of the supply and marketing cooperative came in. At this time, the supply and marketing cooperative was not only responsible for selling, but also responsible for collecting everything, from chicken feathers to animal skins and medicinal materials.

"There are still dozens of kilograms of leopard bones..."

Liu Hai started designing here, and slowly Liu Hai has to speak out with data. Last time, the hydraulic press gave people the feeling of a blind cat meeting a dead mouse. This time, it feels like a temporary use. So the motorcycle It can be done more professionally.

A 500-ton hydraulic press seems to be not much larger than a 100-ton hydraulic press. It is mainly hydraulic equipment. The steel pipe is thicker and thicker.

The most critical thing is the hydraulic pump. This is the key. Because there is no high-pressure explosion-proof pipe, so if we use hard connection, we must integrate the motor and other things together and fix them.

In fact, early pressure equipment was all made of steel pipes, just like early high-pressure steam and so on, so this aspect is not a big problem. High-pressure explosion-proof hoses must also be made, otherwise many equipment in the later period will not be manufactured.

When he got home in the evening, Liu Hai greeted the second uncle and Xu Damao before going home to stew mutton.

Once the mutton is stewed, the whole yard is filled with the aroma of mutton, making everyone else salivate.

"Well done Xiao Hai." The second uncle, Xu Damao and Liu Hai shared a table with three people. When Liu Hai went home and killed two leopards, he also gave a thumbs up.

"We went to the countryside to show movies, and in some places children were snatched away by wild beasts at home."

"There used to be tigers that came down from the mountains to bite people, and there were even more wolves on the grasslands that couldn't be killed."

"Wolves are very smart. They know how to drive sheep away and drive them away in the middle of the night."

Liu Hai and the others were eating mutton at home. The mutton was stewed with white radish. Liu Hai got some green chili and garlic for dipping. Not to mention how fragrant it was.

The first uncle had some doubts in his heart, whether the second uncle, a small group that had enough to eat every three days, had done something shameful.

"Master, I heard some news. It is said that some parts in our factory are not on account." Silly Zhu came to the master and whispered.

When the uncle heard this, he asked in shock: "Why haven't I heard about it?"

"Master, if you don't believe me, ask Xiao Zhang in the warehouse..." Silly Zhu looked at the master proudly.

The old man's face remained normal, but he made up his mind to make inquiries and resolutely not allow people who steal things to exist in the factory...

Finally, Liu Hai started the sports car workshop, and the 500-ton hydraulic press officially started manufacturing. The seamless steel pipes were obtained from Benxi Iron and Steel.

Other castings are all produced by motorcycle factories. They should have been cast in one piece, but they were cast and processed separately, thus solving the problem of making something from scratch.

There are large-scale casting presses, which are used by the country to manufacture some key equipment, such as ships, trains, etc., and they also require separate molds.

Sun Aiguo just wanted to make one, and Liu Hai could only make one, so there would be no trouble.

Sun Aiguo is also very anxious because he wants to catch up with a time point, which is October 1. The 100-ton hydraulic press factory is also preparing to start operation on October 1.

Liu Hai is mainly responsible for the hydraulic pump, and the rest is a cooperative relationship, running various workshops, welding workshop, casting workshop, etc.

The workshop workers have a very good relationship with Liu Hai. Even if they are the factory director, the workshop director will listen to Liu Hai's instructions. Every time Liu Hai will take cigarettes or something, unlike those guys in the technical department who can't understand it themselves and can't get started... ….

Four-column hydraulic press is just a category, there are also gantry hydraulic press and so on.

At the end of September, in the assembly workshop, Sun Aiguo looked at the 500-ton hydraulic press in front of him. It was much larger than the 100-ton hydraulic press. The main reason was that the motors were all integrated together because they were hard-joined with seamless steel pipes.

"It looks pretty good." Sun Aiguo looked at the machine and found that the prototype was more pleasing to the eye this time than last time.

"I can barely use it." Liu Hai nodded and said.

"The long-term problem is relatively big, and the hard connection of steel pipes has higher requirements on the working environment."

"Although the thickness of the rubber pad is increased at the union joint position, it is still not as good as an explosion-proof high-pressure hose."

"In addition, this part is spliced, and the accuracy will decrease with use." Liu Hai first said the shortcomings.

Sun Aiguo waved his hand and said, "Just take your time, give it a try?"

"Then try it. This is a mold for a motorcycle beam." Liu Hai pointed at the mold and said.

It is best to use die-casting for the motorcycle girder, but there is no other way. The only way is to divide the girder into two halves for pressing, then weld after pressing. During welding, a steel bar is attached to the weld position.

Many parts in modern times are cast and pressed, which reduces the process, time, and working hours. However, in the early days of industry, it would be great if they could be manufactured.

Besides, even if there is a motorcycle production line worth 100,000 or 200,000 yuan, it will not be sold without the raw materials.

The machine started, Liu Hai asked Sun Aiguo to press the button, and Sun Aiguo pressed it. The upper mold went down, and there was a "chirp" sound!

Half of a motorcycle frame is formed, and after welding, it becomes flat.

After pressing twice in succession, Sun Aiguo looked at the pressed parts. He was very satisfied and asked: "What kind of motorcycle is this? It doesn't seem to be a motorcycle beam produced by us?"

"This is the main beam of the motorcycle I want to make. I'm going to make a sample first." Liu Hai said.

Sun Aiguo patted Liu Hai on the shoulder: "Good boy, come on."

"I'm going to ask for credit from everyone." Sun Aiguo waved his hand and said.

"Director, do you want a pig to be sacrificed?"

"How can one pig be enough? With so many people in our factory, we need at least three pigs." A worker in the assembly workshop said.

"piss off."