Chapter 400 How can this be
Modern ship manufacturing technology has long entered factory production. When the ships are designed, they are divided into sections, manufactured separately, and then hoisted and merged to form new ships. If necessary, the hulls that are divided can also be outsourced to other shipyards, thereby reducing production pressure and costs.
The advanced shipbuilding method in the early 1990s was the segmented manufacturing method mentioned by An Shangyu. A ship was divided into more than 100 sections and then re-stitched, which was several times more efficient than the traditional shipbuilding method.
The giant total section shipbuilding method can be regarded as an enlarged version of the section shipbuilding method. It only divides more than 10 total sections and can be completed by different shipyards, indirectly improving the operation efficiency of large shipyards.
An Shangyu has been a ship engineer for 20 years. If you listen to it casually, you will know that the giant total section shipbuilding method is more advanced. But he also has many questions: "The weight of the total section will increase, and moving will become more troublesome. According to your plan, the shipyard may need more than 800 tons of gantry cranes. Such a crane is too expensive, so it costs 30 million US dollars. Dahua Industrial's shipyard has such a large investment?"
"If you use a gantry crane, the price is indeed very high." Su Cheng smiled prepared and said, "Dahua is planning to wait a few more years before purchasing a gantry crane with such a large weight. At this stage, when there are not many orders, we are planning to separate the functions of lifting and translation, such as using a lifting tower to complete the lifting function and using a hanger to complete the translation..."
"In this way, the cost is only one-tenth of that of the gantry crane. Smart, so smart!" An Shangyu couldn't help but exclaim. Just this sentence greatly enhanced his trust in Su Cheng. Those who have not really thought about this process will not study the issue of reducing process costs in depth, because in essence, reducing costs is a secondary content of process research. You have to first study the process that can be used, and then consider the issue of cheapness.
That is to first solve the problem of whether there are any problems, and then solve the problem of whether it is easy to use.
An Shangyu didn't know that the tradition of Chinese shipyards has always been to be both cheap and easy to use. Even if it enters the new century, large shipyards dare not purchase too many things.
The method Su Cheng said was the most used by shipyards. Although the efficiency was lower, the cost was only one-tenth, and it was better to say that it was cheaper.
Li Cang knew that Dahua Industrial was not ready for the giant section shipbuilding method, but he still felt excited when he heard Su Cheng say this. Because as early as the discussion period, he knew that Dahua Shipping Industry was developing in this direction, and the shipbuilding method mentioned by Su Cheng was truly able to be implemented.
An Shangyu nodded frequently and asked for a while: "How do you solve the accuracy control? Two such large total segment splicing is much more difficult than small segment splicing."
"Laser three-dimensional precision measurement and computer simulation computing technology." Su Cheng answered without thinking. These are not new things. Before civilian ship manufacturing, this technology was adopted in the manufacturing of space shuttles and aircraft carriers. The key to the problem is that the chief engineer of the ship must use these two technologies and use them in practice.
Creative thinking often depends not on the level of IQ, but on the amount of knowledge and experience stored in the mind.
The first ship designer who adopted the giant total section shipbuilding method, although he shortened the construction time of the ship by half, did not actually invent any earth-shaking new technology, but just solved a series of small technologies.
Other designers may be able to solve some of the technologies, but when they see the difficulty of other technologies, they often choose to give up.
In addition, the different environments in which you are in, whether to use the giant total section shipbuilding method will also change.
There is a reason why both the segmented shipbuilding method and the giant total shipbuilding method are carried forward in Asia. Because the prices of raw materials and equipment such as steel plates have risen rapidly and the world's ship profits have reduced Asian shipyards holding a large number of low-priced orders with a guaranteed nature. In order to turn losses and increase profits, Asian shipyards can only significantly improve their shipbuilding capabilities and try to insert new high-priced orders. Such problems are not that serious in Europe and the United States. Most of them are century-old factories, and the prudent and complete contracts in taking orders often make them avoid rounds of price increases. However, this has also made European and American shipyards increasingly fade into the shipbuilding industry.
Technology that greatly improves shipbuilding speed will only be fully valued in Asian shipyards.
An Shangyu was no exception. He was so happy that he scratched his ears and heads and kept asking questions.
Although Sucheng is half-toned, the air-to-air statement does not reveal any flaws.
Liu Minghao was listening, and at first there were smiling faces watching the show, and he was soon surprised.
He waited patiently for a loophole, grabbed Su Cheng and said, "Dr. Su, let's take a break first. Look, Mr. An Shangyu has just arrived and is still tired."
"I'm not tired, I'm not tired." An Shangyu heard the translator and kept shaking his head: "When I work, I often don't sleep for two or three days. This little fatigue is nothing."
"It's better to take a break." Liu Minghao said, pulling Su Cheng's arm and leaving.
When they arrived at the delegation's separate room, Liu Minghao said unhappily: "Dr. Su, is it true that you talked with An Shangyu?"
"certainly."
"Is this giant total section shipbuilding method really possible?"
"certainly."
Liu Minghao looked like he was about to squirt blood: "This is a military weapon, how can it be easily shown? You... you really picked up sesame and lost watermelon. How can an lng ship's technology be comparable to the technology to speed up ship construction? Do you know how many tankers and freighters our country needs every year? If it can save half of the time, it would be...yes..."
"A weapon of military power?"
"Yes, a powerful weapon for the military." After Liu Minghao finished speaking, he realized that he had said this word, glared at Su Cheng and said, "Tell me, what's going on?"
Su Cheng Shiran said: "It's actually simple. We can't actually use the giant shipbuilding method."
Liu Minghao was stunned: "Why?"
Su Cheng looked at the fool and said, "Why? It's too difficult. Moreover, the core of the giant general section shipbuilding method is to build ships in different places, which means that it can build giant general sections in different shipyards and then assemble them into ships in the core shipyard. It is a multinational company method. Our domestic shipyards do not have such capabilities yet, and probably do not have such intentions."
"Are you still unhappy about the Cylinders?" Liu Minghao couldn't help but say, "I'll say that. If there is this technology, Cylinders will explain it to you."
Su Cheng spread his hands helplessly and said, "I'm not doing it for the Zhongchuan. Oh, I'm cheating him."
"What?"
Su Cheng let out a sigh and said, "We don't even master the sectional shipbuilding method. How can we do the giant sectional shipbuilding method? I was thinking of using higher technology to deceive the techniques that Koreans now master. Alas... I guess they have also come back to the taste."
He did it on purpose. Even if An Shangyu was half-believing and half-doubted, he would show great sincerity, because this thing was half-true and half-false. If the real part was true, he would believe it as true. Maybe he would think that Su Cheng had set up a suspicion array.
Liu Minghao said nothing, no matter what Su Cheng said, and said directly: "Just say it, can the giant shipbuilding method be realized?"
"Yes, but you have to get the sectional shipbuilding method first, and then focus on some techniques." Su Cheng didn't know much about this, but he had indeed been exposed to it when he was studying. His current level is the degree to which he saw relevant nouns and knew what it meant.
Speaking of which, if Sucheng's level is taken in a related exam, it is estimated that 20 points will be lingered. But in the heavy equipment industry, this level is actually enough. Because many technologies were studied decades ago, it was just useless for various reasons. As long as Sucheng is willing to translate documents, ask people, organize professionals to conduct paper research, make a research outline for the giant total section shipbuilding method, and research it, it can be done.
For ordinary people and companies, the key to the problem lies in profit prospects. Investment in heavy equipment technology is often worth tens of billions, but countless technologies are generated every year.
Before you see the prospect, AC power can defeat DC power, and there is nothing strange that cannot happen. Investors hesitate for a little bit and delay a technology for five years is simply ordinary.
Liu Minghao stared at Su Cheng's eyes for a long time, and said relievedly: "Since you said that, I will help you with this sectional shipbuilding method. You will complete the giant sectional shipbuilding method, but you have to guarantee that you will transfer technology to domestic shipyards."
"I have the final say in part of the technology, which shipyards can be transferred to, and when it will be transferred." Su Cheng took the initiative in his hands and said, "Even if you don't help, I can get the technology of the segmented shipbuilding method and find Koreans to save money."
Liu Minghao hesitated for a moment, reached out his hand and said, "A word is certain."
"A word is certain." Su Cheng high-high with him.
"Cooperate with me." Liu Minghao said, opening the door and shouting in a rough voice: "No, technology is yours. Transfer must be through the country and the military. It is not about changing whatever you want."
Cooperating with exaggerated actions and tone, in the eyes of others, Liu Minghao and Su Cheng obviously had a big fight.
An Shangyu, who was reluctant to rest, hurriedly ran up and asked Su Cheng: "Dr. Su, what's wrong?"
Su Cheng's head turned quickly and sighed, "We can't talk about the giant general section shipbuilding method anymore, let's talk about other things."
"Is it officially prohibited?"
"yes."
"This... this is an academic exchange, how can it be like this?"
"Yes, how can this be done!" Su Cheng pretended to be upset.
An Shangyu patted his chest and said, "Don't worry, I'll go and ask for you."
Chapter completed!