Traveling through the sword to engage in military industry

#390 - 450,000-ton die forging hydraulic press makes a strong breakthrough!

The submarine project, code-named "Qin," is now divided into several major sections. The shipbuilding research center is located at the Dalian Shipyard.

Not far from the shipyard is the acoustics research institute, specializing in sonar technology.

The radar research institute and the electronics research institute are now located near Jingcheng (Beijing).

Setting: Bright Sword world, Dalian Shipyard.

"Mr. Ren, today is a new milestone in the history of our industrial development," said Professor Liu Deming, head of the shipbuilding research center, excitedly. "The completion and commissioning of our 45,000-ton die-forging hydraulic press will further boost the shipbuilding industry."

Ren Zhong nodded, but his mindset was different from that of Professor Liu Deming.

In the early days, for the development of the aviation industry, two 10,000-ton die-forging hydraulic presses were built at Taiyuan Heavy Industry and Fengjing Heavy Industry, providing large integral forgings for fighter jets. This greatly improved the overall performance of domestic fighter jets. Following this, explorations and advancements were made, and a 30,000-ton die-forging hydraulic press was built at both Northern Heavy Industry and Modu (Shanghai) Heavy Industry for industries such as energy, automobiles, railways, shipbuilding, and machinery, used for forging large components such as water turbine and steam turbine parts, wheels, and bearings. However, Ren Zhong's pursuit of heavy die-forging hydraulic presses did not end there.

Starting the year before last, based on the 30,000-ton level, and aimed at the shipbuilding industry and energy and machinery sectors, two more 45,000-ton die-forging hydraulic presses were built in Dalian and Yangcheng. Today, the first 45,000-ton die-forging hydraulic press, mainly supporting the Dalian Shipyard, is about to be inaugurated and put into use.

In terms of tonnage, this is currently the largest in the Bright Sword world. The rogue eagle (United States), which is currently working hard to understand the technology of the "Three Dukes" (Germany), will need another two years before the two 45,000-ton die-forging hydraulic presses it invested in building come into being. Although the investment in a 45,000-ton die-forging hydraulic press is huge, Ren Zhong knows the great role of these basic industries and directly decided to build two more.

Don't think that Dongda (Eastern University) already has the most die-forging hydraulic presses in the world today, but it's still not enough. The two 10,000-ton die-forging hydraulic presses are basically monopolized by the aviation industry. Especially after the successful construction of the 30,000-ton die-forging hydraulic press, those two 10,000-ton ones were completely converted for aviation use. During the Peninsula War two years ago, they produced parts for the J-5A almost day and night, making an indispensable contribution to defeating the rogue eagle's coalition forces!

Now that the war has subsided, Ren Zhong, based on the current international situation and the historical development experience of the main world timeline, judges that there will be no large-scale war in the short term. Therefore, he suggested that the production of J-5A be drastically reduced. The entire J-5A fleet will be maintained at a maximum of about 1,500 aircraft and will no longer be expanded.

Although this first-generation jet fighter is currently considered world-class, once the new generation J-7 fighter, developed by studying the F-4 Phantom fighter, is launched, the J-5A will be worthless.

As a leader among second-generation jet fighters, now coupled with the avionics and air-to-air missiles that Ren Zhong prematurely fostered, the J-5A will soon be reduced to a state of jet fighters crushing propeller fighters, and will be outdated in a few years. Therefore, Ren Zhong suggests waiting for the new generation J-7 fighter before increasing fighter production capacity.

Now, the vast majority of aviation production capacity has been shifted to the urgently needed production of transport aircraft and passenger aircraft. Our country has a huge land area, and the aviation industry has extremely broad prospects.

The demand for passenger aircraft and transport aircraft is calculated on a scale of at least a thousand. With such a large demand, even if two 10,000-ton die-forging hydraulic presses operate day and night, they are still somewhat overwhelmed.

Now, based on the C-47 transport aircraft, two new transport and passenger aircraft have been developed with skinning and increased power modifications. According to the indicative performance of the main world that Ren Zhong is familiar with, they are directly named Y-7 transport aircraft, replacing the domestically produced new turboprop -5, with a thrust of 2,000 horsepower. The load capacity has also increased from 2.7 tons to 5 tons, with an empty weight of 8.7 tons, a maximum takeoff weight of 20 tons, a maximum speed increased to 450 kilometers per hour, and a range of 3,000 kilometers.

Although the requirements for airports have increased a lot, the airport conditions are no longer the hastily laid out field airports of World War II, but concrete structures. Therefore, the removal of this advantage does not have much impact, but greatly improves the practical range of the transport aircraft.

The customized pressurized passenger aircraft version is named KC50, a standard 50-seat regional jet.

As for the C-54 transport aircraft, after being localized, it was named Y-8 transport aircraft. After replacing it with 4 turboprops-5, the strength of the fuselage was strengthened, making the empty weight 18 tons; the maximum take-off weight 40 tons. After increasing the internal oil volume and improving the efficiency of the turboprop, the payload is 10 tons, and the effective range with full fuel has been increased to 6,500 kilometers. The maximum flight speed exceeds 500 kilometers per hour. It is definitely an indispensable strategic transport aircraft in China. The bomber modification H-5 is also about to complete its test flight and finalization. According to the design requirements, the H-5 can carry 2 5-ton super peace bombs or heavy air-to-ground missiles, as well as 8 1-ton heavy aerial bombs, with initial strategic strike capabilities.

This time, Ren Zhong is touching the Mesta 45,000-ton die-forging hydraulic press built by the rogue eagle in the main world. These two super die-forging hydraulic presses have been in use until the new century. The excellence and practicality of the design are beyond doubt. Just follow it directly.

Moreover, with the previous foundation, the difficulty of construction is not too great, and it took about 2 years to complete it.

Many thoughts are a long story, but in fact, it was just a thought in Ren Zhong's mind. After Professor Liu Deming finished his opening remarks, he looked at Ren Zhong with joy, "Mr. Ren, on this auspicious day, would you like to say a few words to everyone?"

Suddenly, there was a round of applause below.

There is no way, the current science and technology idol, the strongest genius in Dongda and even in the global vision since the 19th century, these halos have been firmly placed on Ren Zhong's head.

If the previous achievements were all signed and placed on Ren Zhong's head, then at least half of the Nobel Prizes and other world awards to date would fall on Ren Zhong's head!

Therefore, the dozens of real researchers present are completely admired by Ren Zhong from the bottom of their hearts!

"Comrades, you have worked hard! I know that in the past 700 days and nights, almost none of the comrades present have had a day off, and have devoted themselves to the construction of our 45,000-ton die-forging hydraulic press. Thank you very much for your selfless work, which has led to our success today! Today, this die-forging hydraulic press is a military medal for all comrades, and a new milestone in the industrial history of our country."

"In the future, it will make more contributions to our country's industrial leadership in the world and breaking through the Western technological encirclement. Today, this step is just a new step for us to move towards the top of the world!"

"Finally, I would like to thank you again for your hard work and selfless dedication! Next, Professor Liu will collectively request credit for everyone, adding new achievements to the honor roll of our team! Thank you all."

Ren Zhong looked at a group of enthusiastic research backbones, simply encouraged and thanked them, and of course, did not forget to reward them for their merits.

After he finished speaking, there was a burst of cheers below, most of which were from the bottom of their hearts. They all knew what such achievements would mean in the future. In just a few years, they had achieved a three-level jump in die-forging hydraulic presses, almost reaching the end of this field!

This was a major event destined to be recorded in history, and everyone naturally shared in the glory!

The ribbon-cutting ceremony concluded.

Ren Zhong and Professor Liu Deming entered a private discussion phase.

As the chief person in charge of the submarine project, Liu Deming felt a great sense of responsibility. Moreover, this project was completely different from destroyers and small flat panels. Every aspect was a new exploration. Not only did he have little concept of it before, but even after studying so much of the information provided by Ren Zhong, Professor Liu Deming still felt that there were many shortcomings that he needed to ask Ren Zhong for guidance on.

"Mr. Ren, in terms of technology, the prototype verification has given us some confidence, but in terms of noise reduction, to be honest, although we have ideas after reading the information, we still feel at a loss as to how to implement it specifically. We have basically no accumulation in this area domestically. There are countless threads, and we don't know how to grasp the key points."

Professor Liu Deming said with a wry smile. He had been leading the team in developing naval vessels for several years. With the vast amount of information provided by Ren Zhong, Liu Deming's level of understanding after studying it was among the top in the world. However, the problem was that many understandings were conceptual.

For example, he was very clear that for a submarine, noise was the greatest threat. For nuclear submarines, the three recognized largest sources of radiated noise were: the propeller, the nuclear reactor's main circulation pump, and the main engine's reduction gearbox. When sailing at low speed, the biggest noise source was the main pump or gearbox, and when sailing at high speed, the biggest noise source became the propeller.

If this problem was not solved, the submarine's stealth capabilities would become a joke.

Of course, there were also solutions, such as laying sound-absorbing tiles on the submarine. The "Alberich" technology used by the Germans on conventional submarines was the first generation of sound-absorbing tiles, which consisted of synthetic rubber material about 30 millimeters thick with cylindrical cavities with a diameter of 2-5 millimeters inside.

The information went up to this level at most. Next, if you want to figure out the details, you need to conduct experiments and verify them one by one according to this idea. These are all time-consuming tasks that require a lot of time to verify.

Mechanical noise is generally reduced in two ways. One is to reduce the vibration of each piece of equipment through the rational design of each piece of equipment, that is, to reduce the noise source, such as taking measures to reduce the noise of diesel engines, etc.; the other is to isolate and absorb noise in the transmission path, so as to minimize the energy radiated outward by the noise.

In terms of manufacturing, for example, use advanced technology to carefully process the reduction gearbox, and use vibration damping and isolation technology for the reduction gearbox and all auxiliary equipment.

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These are all directions, but they are also easier said than done.

Improvements in basic processing equipment are also needed.

"Professor Liu, you can just work hard according to the several aspects provided before," Ren Zhong knew the current situation in this regard. After all, at this stage, his main focus was on two major aspects: nuclear submarines and the electronics industry. "In terms of processing technology, the new five-axis machining center and new machine tools are about to roll off the production line. For the processing of propellers, we will usher in a major breakthrough. This is of great significance for solving the noise emitted by propeller propulsion.

In addition, a new generation of precision machine tools will also be successfully developed in batches recently, and our mechanical processing accuracy will also be greatly improved. I believe there will be a new improvement in the suppression of mechanical noise."

The five-axis linkage machining center, also known as the five-axis machining center, is a high-tech, high-precision machining center specially used for machining complex curved surfaces. This machining center system has a pivotal influence on a country's aviation, aerospace, military, scientific research, precision machinery, high-precision medical equipment, and other industries. The five-axis linkage CNC machining center system is the only means to solve the processing of impellers, blades, marine propellers, heavy generator rotors, steam turbine rotors, large diesel engine crankshafts, and so on.

The five-axis machining center has five axes: x, y, z, a, and c. The xyz and ac axes form five-axis linkage machining, which is good at spatial curved surface machining, special-shaped machining, hollow machining, drilling, inclined holes, oblique cutting, and other functions. From a normal development perspective, this would not be developed until the 1970s. It would have to wait until computer technology, machine tool control, and other developments reach a certain stage before it could be developed. However, in this Bright Sword world, with Ren Zhong's purchases, computer single boards are directly customized in the main world, plus the design instructions and other information for the five-axis machining center are relatively easy to obtain. Ren Zhong also spent a lot of money to obtain a set of five-axis machining center programs, so the machine tool research center in the Bright Sword world can break through historical limitations and research it in advance.

The initial research version was a large five-axis machining center, equipped with a processing table with an ultra-large working surface of 22000mm × 10000mm.

"That would be great," Liu Deming said happily, "In this way, I will feel much more at ease. Mr. Ren, to be honest, I don't want our submarine to be discovered before it even leaves the Yellow Sea."

"It won't happen. There is no such powerful sonar yet," Ren Zhong shook his head. "If the design goals of our Qin-class submarine are achieved, it will be world-leading at least in the current situation. Professor Liu doesn't need to worry too much. However, there is one thing that needs attention."

"Mr. Ren, what is it?" Liu Deming asked cautiously.

"Whether it is our tools or our plans, they are now top secrets. Even the improvement ideas for the submarine are very advanced technologies in the world today. It is better to hand them over to controllable and reliable people to do it than to expand the scope of technical knowledge without authorization for the sake of progress," Ren Zhong said seriously. Now, don't think that it is convenient for him to purchase goods from the main world, but these things may require ten years or even more than ten years of research to obtain experience and direction in the historical time and space of the main world.

Even if a little bit of ideas are leaked out, it will be an immeasurable loss to a terrible opponent like the Rogue Eagle. They now concentrate the most engineers and talented scientists on Blue Star, and a little inspiration may be a new breakthrough.

"Understood. I will work with the security department to do a good job in identifying research personnel and ensuring security and confidentiality," Liu Deming said solemnly.

It can be said that nuclear submarines are now the most mysterious projects on Blue Star. Their appearance will greatly change the balance of power between major countries and is Ren Zhong's fist project for overtaking in corners and developing asymmetrical combat power!

Many people are destined to sacrifice their lives and live incognito in prosperous cities!

Only in this way can Ren Zhong keep such secrets and secretly build the strongest submarine force without the opponent's awareness!

Like the 30,000-ton and 45,000-ton die-forging hydraulic presses, they are now kept secret, and the entire large workshop has the strictest confidentiality measures.

Liu Deming's team is the most core integration department of nuclear submarines. Of course, Ren Zhong must tell them to do a good job in confidentiality. Fortunately, Xiao Hu is in charge of this. Today's Xiao Hu has grown into the first director of the Security Department of the Liming Research Institute, introducing two sets of internal and external security teams. So far, there have been no major problems in security. This is not only due to Xiao Hu's contribution, but also because the brigade commander has sent a large number of talents to enrich the front line!

Compared to other people, the brigade commander has a much deeper understanding of the importance of the Liming Research Institute.

Therefore, in the process of building the Military Industry Academy after the war, because most of the departments came from the period when Ren Zhong served as the special military industry, the brigade commander also communicated with Ren Zhong about introducing the team leaders and core backbones of the Liming Research Institute to teach in the Military Industry Academy in large quantities.

Of course, Ren Zhong would not object to this. He even exchanged with the brigade commander on how to do a good job in the new mechanism that combines teaching and scientific research for these front-line experts.

To cultivate more talents for the further development of the military industry, Ren Zhong has now truly handed over the affairs of the special military industry during his anti-Japanese period. The special military industry has completed its historical mission and eventually evolved into a stronger and more professional Military Industry Academy.

(End of this chapter)