Chapter six hundred and seventy-ninth 10,000-ton forging press
Back then, in the era of poverty and backwardness, the country tightened its belt to build, and there were many things that rely on self-reliance and hard work, and models like the Iron Man Wang Jinxi emerged.
The spirit of the motherland changed from an agricultural country to an industrial country.
Now, Qin Zhenhua has put forward this slogan again. It is not difficult for a machine factory to build a car. The difficulty is to build a modern car. Knocking with a hammer is to build a car. Using an advanced stamping machine to build a piece of paper on the mold
Stamping is also made, and the production efficiency of the two is incomparable.
After seeing the modern factory, Qin Zhenhua's request was also very strict, and among them, for automobiles, the beam is the most critical.
The beam is the main stress-bearing component of the car. It runs from the front of the car to the rear of the car and is made of high-strength steel. When rolling this steel, a large forging press is required.
The Yellow River Factory does not have such equipment, so it can only be pressed in sections. After it is pressed out, it is riveted with rivets, so the strength is naturally not good. Second-vehicle uses direct forging of the entire beam, and the ten thousand tons of the equipment is used.
The forging machine has a strong force and the quality of the press is quite good.
The first machine factory builds tanks, and the tanks do not use beams. The tanks are welded with steel plates. The forging of the steel plates is done in the steel mill. Although the first machine factory has a forging press, it is only a small size of hundreds of tons, the largest
There is no forging press of one thousand tons or ten thousand tons.
No, what are you afraid of? You can make it yourself!
"Make it yourself?" Hearing Qin Zhenhua's words, Miya kept shook her head: "It's impossible, you don't have this ability at all. The forging machine of 10,000 tons requires a very strong pressure to ensure the precision of plunger processing.
, That requires special cutting equipment to do it. You don’t have such equipment at all and can’t be made.”
"What if we made it?" Qin Zhenhua asked back.
Mia turned her head and looked at Qin Zhenhua with serious eyes: "Make it? What do you plan to build it?"
"Of course we have our own solutions." Qin Zhenhua said: "We are studying all the processes, and after they are made, they will surprise you."
"Impossible, impossible." Mia said, "I don't believe it."
After saying that, he thought about it again and said, "I want to see how you made it."
"Want to see us? This is a commercial secret." Qin Zhenhua shook his head: "No, absolutely not."
"Your commercial secrets? They have no value to us. We in Germany have a complete production plan for 10,000-ton hydraulic presses. There is no need to steal from you. I am just curious."
"That's not OK. This is the secret of our factory." Qin Zhenhua glanced at her: "However, if you join in and give us advice together, then we can still consider accepting your request, but the salary is not available.
You are joining us in an internationalist spirit.”
Mia immediately understood that Qin Zhenhua was quite good at calculating. She was calculating herself and letting herself do their work for free.
When I came here, I was mainly responsible for the sales and maintenance of MTU's diesel engines. In fact, this engine has stable performance and does not require too much manpower at all. Mia is usually bored, so she often comes to the grassland city.
Now, I heard that the other party wanted to build a 10,000-ton hydraulic press, Mia was interested. As an engineer, she was interested in any way of transcending ability. What were they planning to do?
If she wants to know, she has to join in and work for the other party for free!
Of course, Qin Zhenhua also fell in love with Mia's technology. When he went to MTU, he met Mia. She is the most outstanding engineer in MTU, and also the most outstanding engineer in Germany and even the world!
Say that a skilled machine tool operator is enough.
It depends on whether Mia is willing to take action. She can use this condition to tempt her.
"Want to let me join?" Mia said, "Aren't you afraid that I will leak the secret?"
"When you join, there will be a confidentiality code, we believe in you." Qin Zhenhua said.
"Hmph, Is it necessary to do it? But don't bother. If it cannot be done, you need to make a 10,000 tons hydraulic press. In order to produce 10,000 tons of pressure, the master cylinder of the hydraulic press must be at least two meters long.
"Mia said: "You don't have such large-scale cutting equipment at all, so you can't build this master cylinder. If you want to get it, you have to buy it out. If even the master cylinder is purchased out
, let alone you make it yourself.”
No matter what hydraulic press it is, the main components are a hydraulic cylinder that produces a pressure of ten thousand tons. The diameter of the main cylinder is very large. The piston and the outer cylinder wall must be particularly tightly combined, so it needs to be used as a large one.
The milling machine can be precisely processed.
That's right, if you say it, it only takes the protagonist and super machine tool like the toshiba machine incident that was very popular in later generations. Don't look at such a simple piston, it's not easy to process it!
If you don’t have this kind of equipment, you can’t do it. Since you can’t do it, you have to purchase it from outside. This is a key component. What does this component mean to be self-developed?
At this time, Mia also felt strange. Why did she talk about a specific plan? Qin Zhenhua obviously came to fool herself.
What if he asks himself to help with processing or even contact him?
"We have considered this a long time ago." Qin Zhenhua said: "We cannot process such a master cylinder, we can only use an alternative."
Alternative?
Mia looked at Qin Zhenhua and heard him continue, "We plan to use six sub-cylinders, so that each sub-cylinder plunger can only generate two thousand tons of pressure. Our existing processing tools can only be
Processing a diameter of 0.8 meters is exactly the largest diameter we can process. Moreover, in this way, when we use it, in addition to being a ten-ton forging press, we can achieve unnecessary pressure by adjusting the number of working cylinders.
The value, because of the limitation of pairwise use, we can get pressures of 4,000 tons, 8,000 tons and 12,000 tons, and its adaptability will be stronger."
Qin Zhenhua proudly told his plan, just like a dump truck. Some dump trucks use a thick hydraulic column in front, while others do not, and four hydraulic columns under the carriage, each
The power is not very big, but the four together are enough.
"This can be solved, but it is not easy to control the synchronous operation of these hydraulic columns." Mia said: "If it is not synchronized, then what is suppressed is waste."