Peninsula Steel Love

Chapter 625 Do it yourself

Liquefied natural gas carrier, referred to as LNG carrier, is specially used to transport natural gas, and the main component of natural gas is methane. For the convenience of transportation, it is usually liquefied by freezing at a very low temperature (-163°C) under normal pressure, and the volume is compressed to normal temperature. The next six hundredths or so.

This has very high requirements on the safety during transportation. Therefore, LNG ships are internationally recognized as high-difficulty, high-tech and high-value-added products. "Pearl of China" and other reputation.

Only a handful of countries in the world have the ability to manufacture LNG ships. However, since the transportation cost of LNG ships is indeed very low, less than one-sixth of pipeline transportation, a quarter of the world's natural gas is transported by LNG ships. And the proportion is still increasing year by year.

In recent years, as countries around the world pay more and more attention to clean energy, the global demand for natural gas is blowing out. It is foreseeable that LNG ships will become an emerging market darling in the future.

South Korea, as a veteran shipbuilding powerhouse, entered this field very early and quickly formed a monopoly. At present, almost all the new orders for large LNG carriers in the world are divided up by Daewoo, Hyundai Heavy Industries and Samsung Heavy Industries.

Of course, China’s shipping companies are not just for nothing, and we are also an importer of natural gas. The localization of LNG ships is an inevitable requirement to ensure my country’s energy security, so the only way to go is to work hard and catch up.

In 2008, Shenhua Shipyard, located in Shanghai, fully digested and absorbed foreign technology, built the world's largest LNG carrier at that time and successfully launched it for use.

This marks the beginning of China's shipbuilding industry to officially enter the LNG carrier market, but is the problem solved?In fact, no, here we have to mention the foreign technology.

In fact, both Shenhua Shipyard and the three major Korean shipbuilding companies use the patented technology of the same French company, GTT's membrane-type ship liquid cargo containment system, to manufacture LNG carriers.

For this reason, the shipping company needs to pay a huge patent licensing fee to GTT, which is as high as 5% of the total cost of the entire ship, which includes the material for the construction of fuel storage tanks, Invar steel.

Generally speaking, most metals or alloys have the property of thermal expansion and cold contraction, and their thermal expansion coefficient is linear, but Invar steel is different. This material has a very small thermal expansion coefficient in a wide range around room temperature. tends to zero.

In layman's terms, the volume remains unchanged, that is, there will be no phenomenon of thermal expansion and contraction. Therefore, Invar steel is an indispensable material for building large LNG ships to prevent the hull structure from being cracked by freezing in ultra-low temperature environments.

Moreover, invar steel is very "delicate". If you touch 0.7mm thick invar steel with bare hands, it will rust through within 24 hours. It is extremely difficult to manufacture. Of course, the difficulty of welding is even higher. It is definitely one of the most difficult materials to weld in the world. .

At present, only the French GTT company can provide invar steel materials, which is a proper seller's market, which has formed a monopoly situation where China and South Korea are struggling to build ships, while the French are lying down to make money.

The feeling of being stuck in the neck is not good, what to do, it is still the same sentence "do it yourself, and have enough food and clothing".

At the beginning of last year, the marine invar steel localization project jointly launched by Shenhua Shipyard and Sangang Special Steel Co., Ltd., strives to make my country the second country in the world that can produce invar steel besides France within 3-4 years.

This is definitely good news for my country's shipbuilding industry. At the same time, the Koreans are not idle. Their ideas are more advanced, that is, to develop a new generation of materials to replace the traditional Invar steel, and this material is exactly the The high manganese pure austenitic alloy steel mentioned by the director.

In fact, this is also a helpless move by the Koreans. Previously, the three major shipbuilding companies had bought the manufacturing technology of Invar steel from GTT at a high price, but it could not be used in actual production.

The reason is very simple. The content of nickel in Invar steel accounts for 36%, and South Korea is short of nickel, so they have to find another way under the reality.

Hehe, this is purely a stalking act, because the Chinese shipping company was also applying for the purchase of patents from GTT at that time, which was too much of a threat to the Korean shipping company.

The research and development of high manganese steel for marine use in South Korea is carried out almost simultaneously with the localization of our invar steel. Considerable progress has been made so far, but there is still a long way to go before mass production.

The biggest purpose of Hyundai Heavy Industries in wanting to poach Zhou Jing in the past is to hope that he can preside over the project work of mass production of high manganese steel, so the director Quan disclosed the relevant information to Zhou Jing.

Director Quan originally thought that Zhou Jing didn't know much about this aspect and didn't realize the importance of this new type of material, but he didn't know that Zhou Jing's old colleague was in the localization project team of Sangang Special Steel.

Before coming to South Korea, everyone gathered together. Zhou Jing had heard many things from his old colleagues, so he knew what was going on as soon as Director Quan opened his mouth. It's like overwhelming.

Zhou Jing was very shocked just because of the few data casually mentioned by Director Quan. This new material does not contain nickel, but its strength is three times that of invar steel. According to estimates, once mass production, the material cost will only be half of invar steel less than.

This is not the most important thing. The key is that high manganese steel is less difficult to weld, and its welding cost is estimated to be only one-fifteenth of that of Invar steel. It is comprehensively predicted that if LNG ships are built with new high manganese steel, the economy will be higher than before. Out a full 4 times.

In this way, China will be widened by South Korea again in the field of LNG ships. Logically, this has nothing to do with Zhou Jing himself, but how could Zhou Jing remain indifferent to this.

So he took the time to write a detailed report, taking advantage of Xu Zhibin's last visit to Seoul to report on it in private, Xu Zhibin's back immediately became cold after listening to it.

In particular, Xu Zhibin was very clear about the key figures that appeared in the report. If all of these were true, then the products that Sangang worked so hard to produce would have fallen behind as soon as they came out.

Of course, the possibility of the Koreans setting off smoke bombs is not ruled out. The matter is of great importance. Xu Zhibin didn't express his position on the spot, and he didn't even say a word of praise for Zhou Jing. He just said it lightly, I know.

But judging from the current situation, it is obvious that Zhou Jing’s report has been confirmed, and the corresponding countermeasures are also very simple. The localization project of Invar Steel will continue to advance, and the research and development of high manganese steel for ships will be launched simultaneously. After all, South Korea is short of nickel. Not rich either.

It's just that walking on two legs is easy to say, but relying on Sansteel Group alone may be able to catch it, so the research and development of high manganese steel is a joint action with many participants.

In addition to the leader Sangang Group, major domestic iron and steel research and design institutes and more than a dozen large-scale special steel companies have joined in. There are both state-owned enterprises and private enterprises. There is only one idea and eight words for everyone to unite.
"Strive to catch up and strive to surpass".

In fact, this is where Director Quan feels fear and worry, so he is full of resentment towards Zhou Jing, especially Zhou Jing, who even smiled proudly at Director Quan, which made Director Quan even more angry where to come.

"Yes, yes, do you know how much loss a report from your kid has brought to our family? You have to give me an explanation today, otherwise"

"Hey, I said Director Quan, are you going to be a hooligan? You said it on your own initiative, and I have never tricked you, and what's more," Zhou Jing put away his smile and said seriously in front of Director Quan.

"Such an important decision is based on my report? Are you kidding, then you take me too seriously. There is an old saying that there is no impenetrable wall in the world."

Zhou Jing's words are correct. In fact, Director Quan also understands this point. Any big move in the industry is impossible to be so rash, not to mention so many units are involved. He is just angry that Zhou Jing is going to become South Korea's son-in-law. Why? I don't know how to face my mother's family, really.

"Okay, I'll let you go this time, but after all, you owe me once, and I just want to ask you for a favor, so it should be fine."

"No..." Zhou Jing was about to say yes, but suddenly his eyes tightened.

The director of the National University has a criminal record. Could it be that he is going to arrange a blind date with his niece again, although this matter has long been no longer mentioned, it is impossible for the old man to make a fuss for a while.
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Crystal has just finished a wave of entertainment here, and is waiting to see what that stinky Oppa is doing. So far, Zhou Jing's performance is still satisfactory to her, at least there is no Yingying Yanyan, only a fat Agassi .

It's just that Fat Agassi seemed to be a little excited, and there was a faint hint of aggression, which made Little Crystal feel sweaty for her husband.

It has been almost an hour since the reception, Jing Jing planned to go to the bathroom to touch up her makeup first, and then go to Zhou Jing's side to stay for a while in a fair manner.

There is no need to make any cover-ups at all. If she communicated with Zhou Jingling all the time, it would be a cover-up in the eyes of outsiders. Not long ago, she attended the National Day banquet at the embassy together, but now she pretends not to know each other?It's just too fake.

However, before she could take any action, a greeting came from behind, "President Su, it's a pleasure to meet you, we meet again."

Jing Jing turned her head and saw Li Fuzhen standing behind her and Su Xia with a smile on her face. To be honest, she heard a lot about the matter between Samsung and Rongjin from Zhou Jingna, so she didn't feel that Li Fuzhen appeared. Accident.

Just after she saluted and introduced herself, the response of the three-star eldest princess made Crystal stand on the spot in a daze, unable to figure out what was going on.

"Anihasai, Li Fuzhen represents nim, and I am Krystal."

"Xiujing xi, you don't need to be so born, I am his sibling, so you can just call me O'Neill."

"Mo?"

(End of this chapter)