industrial overlord

Chapter 143 Five-leaf Fan Mold ([-]rd update today)
"Xiao Lin, why are you playing so much more and more, you want to play the idea of ​​a [-]-ton hydraulic press?" Liu Xianghai said to Lin Zhenhua with a chuckle.

Lin Zhenhua pointed to Liu Xianghai and said, "Old Liu, if we talk about this matter, it has something to do with you. You are the one who started it."

"How do you say that?" Liu Xianghai asked.

Lin Zhenhua said: "Do you remember the five-leaf fan you designed for me before you left?"

"Remember, I did the calculation again after I came back, and found that the design I gave you was fine. You produced it according to the design drawing, which is definitely world-class." Liu Xianghai said confidently.

"That's right, Lao Liu, to be honest, I will start producing five-leaf fans as soon as spring begins." Lin Zhenhua said, "However, after the fan changes from three leaves to five leaves, the blades become narrower, and the same strength must be achieved. , the steel plate is required to be thicker. In addition, the shape of the leaf surface you designed is more complicated than the original one, and it cannot be formed by stamping with a pressure of 50 tons, and it must be pressed to a pressure of 200 tons."

Liu Xianghai nodded: "That's true. I remember you bought an old 200-ton punch from Yan Yuanhe. You used to use it as a 50-ton punch. Now it's fully loaded."

Lin Zhenhua said: "This is where the problem lies. When we produced ordinary fans, the blade molds were made of cast iron, and it was not a big problem under the pressure of 50 tons. But now when the pressure is 200 tons, the mold can't bear it. After punching one or two hundred blades, the die will be damaged. Now we decided to change to a forging die. We did a preliminary calculation. The pressure of the punching machine is 200 tons, and the pressure of the forging die should be 2000 tons, so that the die can work under high pressure. No deformation."

"Oh, it seems that the instigator is really me." Liu Xianghai said with a smile.

"How is it, old Liu, you said in your letter that you have coordinated for us, when can we start forging?" Lin Zhenhua asked eagerly.

Liu Xianghai said: "Our base has a 2000-ton die forging machine, but there are many experimental tasks recently, and it is impossible to free up the machine for you to use. Let me contact two shipyards for you. Jiangnan Factory has a 1962-ton die forging machine. As you all know, the hydraulic machine was built by our country on its own in [-]. However, their business is also very busy at present, and the charges are relatively high. After thinking about it, I think you don’t necessarily need such a large one. There is no need to waste money without pressure."

Lin Zhenhua smiled and said: "Old Liu, this is not right. I really want to use a [-]-ton hydraulic press to press this set of molds. If nothing else, it will be sold as a cultural relic in the future. The [-]-ton factory in Jiangnan Hydraulic press, that is the independent innovation achievement of New China that has attracted worldwide attention."

Liu Xianghai said: "It's true. A sharp weapon like a [-]-ton hydraulic press is a symbol of a country's industrial foundation."

"Why, you agree?" Lin Zhenhua asked.

Liu Xianghai shook his head: "Forget it, the meaning is the meaning. It is a pity to waste the machine time of the 5000-ton machine when there is no need to use such a great pressure. I have already contacted Hudong Shipyard for you. They have a A [-]-ton forging machine made in the Czech Republic is enough to open molds for you.”

"That's true." Lin Zhenhua said.

"After the die forging, we still need to do machining. We need to rent a vertical lathe and a gantry milling machine." Peng Gang reminded.

Liu Xianghai nodded: "Don't worry, Master Peng, this has been contacted, and you can use the equipment of Hudong Factory. You just need to pay according to the standard."

Lin Zhenhua asked: "Old Liu, is this all for your sake? Otherwise, with our small factory, how can people lend us the equipment."

Liu Xianghai waved his hand and said, "We and the Hudong factory are considered a family, and the front and back processes. We design, they manufacture, how many years of cooperation. In fact, we sometimes rent their equipment to make some experimental products, and the same is true. It’s about money. But, this time I’m going to make civilian products for you, and I really need some kindness in it.”

Lin Zhenhua laughed and said, "Haha, I never thought that Lao Liu would also learn to talk about human relationships and go through the back door."

Liu Xianghai glared at him, and said: "Isn't it because of you, Xiao Lin, who forced you to do this? We have been friends for so many years, and I have no face to answer you after you have opened your mouth after so many years. Your big sister Qin is still giving me a blowjob. You said that you helped us so much back then, even if we violated the principle a little bit, we should help you."

Everyone had lunch at Liu Xianghai's house. Qin Ying was a nostalgic person. Seeing an old colleague come, they cooked a very sumptuous lunch, which moved everyone very much.She is now the wife of a teacher-level cadre. It is indeed not easy to cook for a group of workers by herself.

After resting overnight in the guest house, Liu Xianghai personally brought Lin Zhenhua and his party to the Hudong Shipyard in a minibus early the next morning.

The process of forging the mold was very long, and Lin Zhenhua handed over the task of specific communication to Peng Gang and Sun Changyuan, asking them to stay in the forging workshop and wait for the result of the forging mold.Naturally, Yang Wenyong also stayed with Peng Gang and the others. The young man has never seen a forging machine since he was so old. Now he saw that it was a 5000-ton forging machine, which was an eye-opener.

People usually say that it is as strong as steel, but under the 5000-ton forging machine, steel is as soft as dough and can be easily forged into various shapes.

Liu Xianghai had already handed over the blueprint of the forging required by Hanhua Company to Hudong Factory before, and all that needs to be done now is to forge it.Everyone stood outside the safety line, watching the huge calipers send the steel billet heated to 1200 degrees Celsius to the forging hammer, and then the forging hammer began to forge the steel billet into the specified shape.

After the forging forming process is completed, the forging is sent back to the heating furnace to slowly cool down to eliminate internal residual stress, reduce surface hardness, and facilitate future cutting.These specific heat treatment processes are very routine in Hudong Factory, and people in Hanhua Company do not need to worry about them.

Liu Xianghai and Lin Zhenhua did not stay on site to watch the forging process, but walked out of the workshop, wandered around the factory area, chatting about what had happened in the past few months.Lin Zhenhua first introduced the development of Hanhua Company, which made Liu Xianghai click his tongue repeatedly.Next, it was Liu Xianghai's turn to tell Lin Zhenhua about himself.

"How about it, Lao Liu, have you started processing large propellers?" Lin Zhenhua asked enthusiastically. After asking, he felt that something was wrong, and quickly said, "Oh, by the way, does this involve military affairs? Secret, can't tell?"

Liu Xianghai said: "These things are considered secrets to others, but it doesn't matter to you Xiao Lin. If you can't even believe it, who else can I trust?"

"Really?" Lin Zhenhua was very happy. In his previous life, he was also a military fan and military blind, and he had a lot of interest in military affairs. "By the way, Lao Liu, I have never dared to ask you. The one you made Model, what type of propeller is it, Song class or Yuan class, or is it a nuclear submarine?"

Liu Xianghai shook his head: "I can't tell you that. However, this matter has not been included in the schedule yet. To actually start production, at least it will have to... Well, I can't even tell the time."

Lin Zhenhua asked in surprise: "No way? Old Liu, you have been back for more than three months, right? Now everyone advocates that time is life. You have mastered such a powerful technology as five-axis machining. Why hasn't it been included in the schedule yet? ?”

Liu Xianghai sighed: "Xiao Lin, if you don't believe me, the time I can really sit down and do research in the past three months or so is no more than 10 days."

"Old Liu, have you started to engage in corruption?" Lin Zhenhua said, "Did you come to Shanghai, a world of flamboyance, to eat and drink every day? Are there any unspoken rules?"

Liu Xianghai was annoyed by Lin Zhenhua: "What are you talking about! What unspoken rules. After I came back, I was appointed as the director of the propulsion system engineering institute, but I was involved in a lot of administrative affairs. The institute was trained in the turbulent years. Many people were persecuted, and some of them were protected in some small factories like me. Now these people have come back one after another, and they all need to implement the policy.”

"I don't think your policy has been implemented very well?" Lin Zhenhua teased.

Liu Xianghai said: "That's right, Minister Zhang Zhifang personally asked about my policy, and the head of the Military Commission also made a statement, so it was implemented in one step. Some other comrades were not so lucky, and some of them had a little bit of politics themselves. The problem is that some have completely abandoned their majors in the past ten years. People have come back, but they are useless. They can only eat and cannot work. However, these people have made contributions in the past, and they I also suffered some grievances during those ten years, and I can’t ignore it in the organization. I deal with these things every day, and I am too busy.”

Lin Zhenhua said angrily: "Isn't this just nonsense? What kind of policy is it to let you, a scientific researcher, do the administration?"

Liu Xianghai said: "It's also a good thing that I'm in charge of administration. Anyway, in the propulsion institute, no one dares to challenge me in terms of professional level. Therefore, when I say something, others don't dare to refute it. If it were replaced by a purely political cadre, the intellectuals probably wouldn’t accept them either.”

"However, you can't do scientific research yourself, but you can guide your subordinates to do it, right? The two who went to the Hanhua factory last time, Chang Qingbo and Yu Wenzheng, I think their skills are not bad. If you give them some hints, can't they figure it out?" Lin Zhenhua suggested.

Liu Xianghai showed a gleam of joy on his face, and he said, "That's not the case. The most successful thing I have done in this period of time is to teach the principles of complex curved surface processing that I figured out when I was in Hanhua Factory. Researcher. The English books you gave me can be of great use here. So far, the theoretical design of the new propeller machining is nearing completion, and the electronic engineering department has also helped complete the four-axis linkage To put it bluntly, you don’t like to hear it, the control system they made is much stronger than what you and Lao Chang made.”

"That's a good thing. Is there anything I don't like to hear." Lin Zhenhua said, "Since the design has been completed, why not start manufacturing as soon as possible?"

Liu Xianghai said: "The reason is simple: no money."

"No money?" Lin Zhenhua's eyes widened.

"No. The theory of machining has been completed, but this does not mean that it can be manufactured. For example, the research on the material side has not been completed. What do you use for processing? The material room sent me a dozen copies The core of the report is just one word: money. What kind of steel, what kind of forging process, and what kind of heat treatment process are used for the new propeller, all need to be verified through experiments. Did you know that just to verify the effect of a set of heat treatment processes, Hundreds of experiments are required. Each time they use a sample as large as a tile, the preparation cost of this sample is 200 yuan, and hundreds of experiments are almost 10 yuan."

"It's only 10 yuan?" Lin Zhenhua really didn't understand. "Old Liu, you won't tell me that such a big country doesn't even have 10 yuan?"

Based on his thinking, at that time, he wished he could burst out with bastard's anger, and said: How much money is missing, let me pay.With Lin Zhenhua's current net worth, it is not impossible to pay 10 yuan.This is a matter related to national defense and security. What is 10 yuan worth?
Liu Xianghai said: "Why, don't you believe it? The money allocated by the state in a year seems to be a lot, more than one billion. But every department needs money, engines, radars, artillery, missiles, talk about it, Which one doesn’t cost money? It’s 200 million yuan a year for our propulsion institute, and the heat treatment process is only a small part of it. Can I give them 10 yuan?”

Lin Zhenhua was dumbfounded, he really hadn't calculated such an account.In his mind, the military industry must be the top priority. If there are any technical problems, he must spare no expense to solve them.In his previous life, when he and his classmates sometimes talked about some short legs in Chinese technology, they also complained endlessly.Problems that can be solved by investing millions of dollars can never be solved.Such a big country, where can't squeeze out a few million?
After listening to Liu Xianghai's introduction, he finally understood a truth, if you are not in charge of the family, you don't know how expensive it is.It is not difficult for a country to squeeze out hundreds of thousands or millions, but the technical problems that a country has to solve are more than tens of thousands?If everyone wants to squeeze out money to do it, in the end, there must be no money to squeeze out.

Of course he, Lin Zhenhua, can spend 10 yuan to help solve a heat treatment process problem, but then what?This process is only one link in the whole propeller manufacturing.The propeller is only one part of the ship's construction.Does every problem depend on him taking out his own fortune to support it?

In 1981, China's GDP was 4800 billion yuan. Calculated based on the proportion of technology investment in developed countries accounting for about 4% of GDP, China can only spend less than 200 billion yuan on scientific and technological research.And the 200 billion yuan still needs to be distributed among dozens of disciplines, and the shortage of scientific research funds can be imagined.

When people today talk about it, they say why they didn't make engines, advanced machine tools, and microelectronics...all of these in developed countries cost hundreds of billions of dollars to develop, but we The country can only spend a mere 200 billion a year to cover the entire scientific research system.

Do you want to use three to five billion to make an engine?What a thick golden finger this must be.

It is true that a penny beats a hero.

(End of this chapter)