508 Fifteen thousand tons of open forging
Industry is a system, and the so-called cutting-edge technology refers to the technology built at the top of the system. In order to engage in cutting-edge technology, we must first build up the foundation layer by layer, and no link is missing in between.
In the case of gas turbine manufacturing, there are two difficulties, one is the design, and the second is the material.
The design needs to have theoretical support, the accumulation of practical experience, and a large number of experimental data to repeatedly verify, which is also very difficult to say. But there is also a shortcut to design, that is, to learn from the experience of others, the simplest kind of reference, is to buy a prototype from others, disassemble a part and measure it one by one, and then form a drawing according to the gourd, and then manufacture it in the factory.
This practice is called reverse engineering, or reverse engineering. In the early years, there was no awareness of intellectual property rights in our country, and this kind of reverse engineering was very common. When we say "so-and-so was made for the first time", most of the time there is a shadow of reverse engineering behind it.
According to the anecdotal rumors, after a certain type of aircraft in China was manufactured, a Boeing CEO was specially invited to visit. After the boss boarded the plane, he said: "This obviously shows that it is not a copy of Boeing." In hindsight, many people were honored by this conclusion, and it was repeatedly cited as evidence that the aircraft was not copied from Boeing. It's a bit like a family giving birth to a baby, and the neighbor's man comes running over and says, "Look at this baby's nose obviously doesn't look like mine." Can the men of this family use this sentence to show off their abilities?
After the reform and opening up, we want to go to the international market, and it is not appropriate to engage in this kind of blatant copycat, but in some product design, it is still very common to get inspiration by imitating other people's products.
The design can be copied, but in terms of materials, it is difficult to copy. Many of China's products look similar to foreign products, but they are inferior to their foreign counterparts in terms of performance and service life, largely due to the lack of materials.
The production of materials is divided into several aspects, one is the material formula. The second is the material production process, and the third is the heat treatment process. For example, in order to make a metal material have a high fracture toughness, it is often necessary to place it under a large forging machine for forging. The main beams and landing gear of large foreign aircraft are forged by large die forging machines, so that the materials formed can withstand tens of thousands of twists without breaking.
It is said that the landing gear of Airbus's newly launched 380 aircraft was specially pulled to Russia for forging. Because only Russia has 75,000 tons of die forging machines in the world, and the pressure of die forging machines in the United States is only 45,000 tons. Until the first 10 years of the 21st century, China had only 30,000 tons of die forging machines with the largest tonnage. This has greatly hindered the development of China's large aircraft industry.
It can be seen that in order to develop large aircraft, you need to at least have a large die forging machine first, and then build a large die forging machine. It involves a series of technical and economic issues. In this way, a huge industrial system can be deduced by tracing back layer by layer. Some people once fantasized about returning to the power with the black technology of the 30th century, but in fact, this is just a novelist's ideal, without hundreds of years of industrial precipitation, even if you take the drawings of the 30th century, you can't build a machine with the same performance.
After more than ten years of development, Hanhua Heavy Industries is finally facing the need for technological upgrading. The construction of large forging machines is increasingly on the agenda of the group's executives.
"Our chemical equipment company is jointly developing coal liquefaction technology with our sister units, and one of the key components is the high-pressure reactor. With traditional welding forming methods. The required strength cannot be achieved. At present, the methods of manufacturing such ultra-high pressure vessels in foreign countries are all forged and formed. We believe that large-scale forging and forming technology will become the main bottleneck for our chemical equipment to improve product quality in the future. Fang Yanwu interjected. Ma Shengfan also spoke: "Our machine tool company currently has a 6,000-ton free forging machine, and the forging pressure is barely enough, but the column opening spacing is too small to produce large forgings. That's why I support the group in building a new large-scale open forging machine. The spacing between the columns should be at least 7 meters. ”
Hu Fei said: "I have checked some information, and the state has invested a lot in the equipment manufacturing industry. The R&D efforts of heavy equipment continue to strengthen, and I expect that the demand for large forgings will explode. For example. The rotor of large hydropower and thermal power units must use a large free forging machine to achieve molding, and there are only 3 large free forging machines with more than 10,000 tons in China, and they are all built before the 70s, and the technology is backward. If we can take the lead in building a new free forging machine of more than 10,000 tons in China, it will be enough to recover the investment just by undertaking foreign forging business. ”
Everyone, you and I began to tell Lin Zhenhua about the necessity of building a large forging machine. According to everyone's thinking, Hanhua Heavy Industry needs to build two large forging machines, including a free forging machine of more than 10,000 tons and a die forging machine of more than 50,000 tons. If we have these two forging machines, the manufacturing capacity of Hanhua Heavy Industries will be able to leap several steps in a row.
After listening to everyone's words, Lin Zhenhua smiled and said, "You can't have already colluded and waited for me to come back and express your position, right?" ”
Xiang Zhe also smiled: "It's okay for Zhenhua to say that." You are the head of the group, and this kind of big thing must be decided by you, but you are rarely at home all year round, so we have to discuss things first, and wait for you to come back and report together. ”
"I don't think I'm going out to play in the mountains, am I?" Lin Zhenhua shouted, "Didn't I tell you as soon as I came back, I went to Venezuela this time and negotiated a cooperation intention of at least 50 billion US dollars, which can be regarded as my contribution to the company, right?" ”
Xiang Zhe said: "We don't mean to blame Mr. Lin, like this kind of cooperation intention, we hope that the more the better." However, when Mr. Lin is happy outside, shouldn't he also contact his family more to learn about the company's operation, so as to save his eyes on the company's current situation? ”
"By the way, speaking of which, I think of one thing." Lin Zhenhua said, "Our company should also establish an information network system, the future era must be an Internet era, our practice of transmitting information by telephone and fax is outdated." ”
The matter of going online has been stored in Lin Zhenhua's heart for more than ten years. When he just crossed over, the kind of days without the Internet really scared Lin Zhenhua. After more than ten years, Lin Zhenhua has adapted to the lifestyle of this era, but the convenience of online life is something he misses all the time. Nowadays, the Internet has entered China, although the popularity is still very low, but Lin Zhenhua can't help but let Hanhua go online.
Xiang Zhe said: "Xu Wei is already doing this. The company has introduced a set of Lotus company's Notes office system, which is currently only being tried out at the Xunyang headquarters. Xu Wei made a report, suggesting that the system should be connected to the Internet, so that information sharing can be realized among branches across the country and even around the world. I'm currently experimenting with him. ”
Lin Zhenhua said: "The matter of going online should be treated as a major matter. The current level of Internet development in China is still very low, but I estimate that within five years, the Internet will enter thousands of households. Enterprise informatization is an inevitable trend, and we should have a senior manager to be responsible for this matter. ”
Xiang Zhe and Hu Fei smiled and looked at each other, and then said: "It turns out that Zhenhua also has this idea, which coincides with the private communication between me and Lao Hu a few days ago." We also think that Hanhua's informatization construction should speed up the pace, I would like to nominate Xu Wei as the group's information director, Zhenhua, what do you think? Xu Wei was one of the returnees introduced at the same time as Xiang Zhe, Hu Fei and others, graduated from Oklahoma State University, and studied industrial software. Over the years, he has been engaged in software development and management within the company, and is now a mid-level cadre. If the group wants to set up a senior executive in charge of informatization, Xu Wei is undoubtedly the most suitable person.
Lin Zhenhua nodded: "I agree with this proposal, Xu Wei is indeed a good choice in terms of the candidate for the information director, but everyone should also learn more about it and see if there are other candidates, let's discuss it in a few days." Hu Fei, you continue to talk about the question of free forging. ”
"yes, okay." Hu Fei responded, he looked at his notebook, and continued: "Regarding the large-scale free forging machine, we currently have three sets of plans, which are 11,000 tons, 12,500 tons and 15,000 tons. The first two levels of forging machines have prototypes in China, and it is not difficult to imitate. The 15,000-ton forging machine is currently not available in the world, and if we want to build it, there will be a lot of technical difficulties. ”
"Someone has to do it first, and it's time for the Chinese to lead the world trend." Lin Zhenhua said softly.
Lin Zhenhua studied mechanical engineering in his previous life, and he has some understanding of the development history of large-scale forging presses. The world's earliest 10,000-ton free forging press can be traced back to the 19th century, and after entering the 20th century, various industrial powers have built their own 10,000-ton free forging presses, including 3 10,000-ton hydraulic presses built by China in the 60s.
By the end of the 20th century, the world's largest hydraulic and hydraulic presses had a tonnage of 14,000 tons, mainly concentrated in Japan and South Korea. The United States, Britain, Germany, Italy and other old industrial countries due to the decline of the manufacturing industry, the demand for large forgings has gradually decreased, has closed more than a dozen large casting and forging factories, dismantled more than a dozen forging machines of more than 6,000 tons, as for the construction of more than 10,000 tons of forging machines is in a state of stagnation.
On the contrary, China has gradually become the center of the world's industry, and the demand for large forgings is increasing day by day. In the first 10 years of the 21st century, China built 5 new free forging machines of more than 10,000 tons, including a heavy 15,000-ton hydraulic press, a second-heavy 16,000-ton hydraulic press, a 16,500-ton hydraulic press of Shanghai Electric, and a 18,500-ton hydraulic press of CITIC Heavy Industry, all of which exceeded the tonnage of the largest free forging machine abroad.
What Lin Zhenhua has to do now is to advance this process by 10 years, and in his eyes, 15,000 tons of free forging machine is not a problem at all