Chapter 3167: Great country craftsman

The challenge is the same for a ship transporting LNG. Liquefied natural gas needs to be kept at minus 162 degrees.
Such a low temperature can not be achieved by a refrigerator like a refrigerated truck. It must rely on its own outstanding welding technology to weld a special material into a huge storage container. This welding is the most difficult of all technologies. .
"In the 1950s, the West conquered the manufacturing process of liquefied gas ships. However, so far, no more than ten such ships can be manufactured in the world, and we will also be among the world-class ships. Come from the manufacturing field." Lao Zhang said with a proud smile on his face.
He has been in the shipyard all his life, almost the same as Makarov's experience. He started as an ordinary welder, rose little by little, and went to the present. At the same time, he also witnessed the strength of the domestic shipbuilding field.
In the field of military ships, we have been able to build aircraft carriers, and in the field of civil shipbuilding, we have to build our own LNG cargo ships!
If this kind of ship is not built, then the shipbuilding industry of Han State will never be considered the most powerful, and it will not be able to shine on the world shipbuilding stage. This is also part of achieving the national strategic goal and showing our great power.
As an industrial power, it must be able to build such cargo ships. Moreover, this is also related to the country’s energy strategy. Han is rapidly becoming an energy importing country. Han has to import a large amount of oil and a sufficient amount of natural gas. With the increasing importance of environmental protection tasks, natural gas There will be more demand. These require a large number of natural gas cargo ships to transport. If you can't build it yourself, you can only buy it from abroad at a high price.
Faced with this challenge, they worked hard.
"There are two main types of storage of liquefied gas, the independent storage tank type and the membrane type. The former is to place cylindrical, tank-shaped, spherical, and other shaped storage tanks inside the ship. From the appearance, you can see that the hull protrudes one by one. The latter uses a double-hull structure. The inner shell is the load-bearing shell of the cargo tank. It is similar to the tanker. The latter has a high volume utilization rate and a light structure, but at the same time it is more difficult. Therefore, we decided to go ahead. After building a few ships and mastering the technology, the latter will be built."
Lao Zhang introduced and led everyone to the construction site.
At this time, pieces of shiny special plates have appeared in everyone's field of vision. At the same time, soothing music is still playing on the construction site.
"While we were building the hull, we also began to weld these most important gas storage tanks. They are spherical. Now, what is being welded here is this kind of spherical tank that holds LNG."
After speaking, Lao Zhang smiled: "We all call this work embroidering on steel plates."
Qin nodded his head and said: "Let's take a look at the side, don't go up and affect the work of the workers."
Qin Guan knew the difficulty of this kind of welding.
Invar steel is a special steel suitable for this kind of ultra-low temperature. This kind of steel is relatively thin, and the requirements for welding are very strict. How strict is it? There should be no sweat dripping on it, no fingerprints can be left, no extra pressure can be applied to it, even a pen will not work.
Once this happens?
Then it is scrapped, the steel plate being welded needs to be replaced, and the surrounding steel plates connected to it must be replaced.
At this time, the workers were working under such requirements. The shiny Invar steel was bright and beautiful, like a mirror, illuminating everyone clearly, and the welders were listening to the music in a calm and calm manner. , Welded steadily, just like fishing for copper coins in a boiling pan, like chopping meat on the back of Zhenguanxi, their work is of great importance.
It is not just that sweat drops cannot fall, even a little bit of false welding will bring terrible consequences. This is a natural gas cargo ship. During the voyage, if a welding spot leaks due to false welding, it will bring about The consequences are catastrophic, and the entire ship will be destroyed.
The spheres that store natural gas one by one are powerful bombs. Moreover, this is not the most serious. If there is a leakage during unloading at the port and the natural gas ship is ignited, the entire port will be destroyed. Blow up.
Therefore, it is quite a test for the workers, not only the superb skills, but also a stable mentality.

We have to check the workers’ bodies every day. Those with inconsistent heartbeats can’t get it, those with high blood pressure can’t get it, and if they’re in a bad mood, they can’t get it. Now, in this kind of welding, there is no need to mention minor injuries, even minor rhinitis will not be affected."
Qin nodded his point of view: "Yes, these craftsmen are the most precious treasure. We will soon have a special column for artisans from big countries, and reporters will come to interview. You have to be prepared and choose a few Excellent craftsmen are interviewed. This is a way to show the strength of our country, and we must not lose the chain."
When Qin Guan said this, Lao Zhang immediately understood: "Don't worry, we made in Han, it is world-class, and it is different from an island country."
When Lao Zhang said this, he patted his chest: "When the LNG cargo ship was launched, and the leaders had questions, I said at the time that something went wrong and I was held accountable. We built it for a lifetime. The ship, without an aircraft carrier, has to be challenging."
This kind of super cold storage on the sea is the most challenging cargo ship in the world. Of course, they have to take over this task and show their own style to their superiors. They are definitely not worse than the northern shipyard.
Hearing this expression of determination, Qin Guan smiled and nodded: "Don't worry, although the aircraft carrier can't reach you, you still have a chance for the amphibious assault ship used by the navy. The shipyard in the north has many tasks. I’m too busy, and there will definitely be orders for you. Then, you can’t drop the chain.

When Qin Guan said this, he was already very solemn.
The Navy will soon have a formation of three aircraft carriers, the Han Navy will also become the world's second naval force, and the construction of amphibious assault ships will also begin soon.
According to the plan, this assault ship is to be put into service as soon as possible, so there is also a chance to build it here.
It was clear that Lao Zhang was just asking for a battle. He was also worried about the mission of not building an aircraft carrier. Now, there are only 10,000-ton destroyers, which is simply not addictive.
Qin Guan had already promised him the task of building an amphibious assault ship, which was 40,000 tons, and in many countries, it was enough for the role of an aircraft carrier.