antiterror13
Brigadier
Just wonder whether Japan has ever built a luxurious Cruse Liner ?
Highest total tonnage doesn't mean anything, quality is more important. In fact China produces the most car in the world, but all the equipment used to make the cars come from overseas and all the most advanced technologies are still in the hands of those foreign companies. Samsung and LG together are the biggest IT producers in the world, but all their equipment come from overseas, either Japan or the US.
Ships themselves are just an empty shell, it's not that hard to build as soon as you have some decent industrial foundations. It is the subsystems that are extremely hard to build. China holds a lot of world's number records in the industrial sector, but a lot of these are just result of Western companies' outsourcing.
It is still not proven that China has tackled and solved the problems in making special grade steels used in
various key parts of an aircraft carrier.
China is indeed growing and catching fast, but we still have to be conscious and cool about its actual stage of development.
I am not so sure that is the case anymore In term of CNC machinery China and Taiwan own 50% of the wold market. There is only 2 or 3 CNC manufacturer left in US .If you mean forming bending and welding the Chasis. I am sure China can built their own. If you mean robotic welding machine. Certainly they can built their own. Other than that conveyor belt etc they are low tech Anybody can do it
No ship is not empty hull You got thousand meter of piping and control system to move the oil and so on Plus you got heavy diesel engine to run the ship . Control system etc NO SHIP IS NOT EMPTY!
The western shipyard go bankrupt because they beome uncompetitive. Labor is the single largest component of Shipbuilding At $60/hr and 1 month vacation in French and Germany They just out price themselves!
LNG carrier is high tech job Only handful of shipyard can built LNG Carriere. Because standard Steel at -162 C will shatter like a glass. You need hih halloy metal to withstand such a low temperature. NIckel and monel based. the problem is welding such high alloy is difficult and demanding task Normal welding procedure won't do it . Any leak cannot be tolerated because they can ignite So zero error tolerance!. then you problem with insulation etc . China now win contact after contract in this class of Ship.
China imported six billion USD worth of CNC machines in 2009. CNC machines are just like cars, there are those toy grade cars from India (Tata) and there are those extremely well made German Mercedes. China can definitely produce those relatively lower end ones. But as for those extremely high end machines with precision that go into nanometer level, a lot of them still have to be imported. Although a lot of domestic companies have already reached into this level of precision, they still lack reliability when compared to imported machines, especially those made in Germany. I have a friend who used to work in a company that uses these kinds of machines. He told me if you want to buy 华中数控 (the leading CNC company in China) machines, you would have to buy two, one for work and another as back up, since those machines break down so easily. Even if China can make those machines, there is still only one company in China that could make the core units, including software and motor system. Even so, the precision still cannot match those made by Siemens and SoftServo.
Those ships are still really just empty shells, since wiring and pipes are not that difficult. All you have to do is map them out in the computers and follow the blueprint. The subsystems are the most important. By subsystems I mean high grade steel, and no, ballistic steels are completely different from special grade steels used in aircraft carriers. You have to compare apples to apples instead of comparing it to oranges. A lot of things are easy to develop because they are used once, like missile motors and ballistic steel, which the Chinese can make very well. On the contrary, there are jet engines and ship engines, and especially steel used to make decks on aircraft carriers. Those things have to be used over and over again, this makes the whole thing a million times more complex.
Since you said ship engines, actually those ship engines are mostly either Ukrainian or German MTUs.
Like you said, these techniques are indeed very sophisticated and is worth to be proud of. But we still have to remember that majority of these equipments used to manufacture the ships still come from abroad. Just like the Chinese old saying, you have to give the person a fish net instead of just giving him the fish. In this case, you have to teach that person how to make the net instead of just giving it to him.
Don't get me wrong, I'm Chinese myself and I'm proud of these developments. I just don't like the fact that a lot of people get either overly cocky or paranoid about China's development. Yes, indeed we are developing fast, but there are still many areas that we can improve. One shall live in fear caution rather than live in comfort. We can only improve when we know our weakness, instead of daydreaming about how great we are.
Don't get me wrong, I'm Chinese myself and I'm proud of these developments. I just don't like the fact that a lot of people get either overly cocky or paranoid about China's development. Yes, indeed we are developing fast, but there are still many areas that we can improve. One shall live in fear caution rather than live in comfort. We can only improve when we know our weakness, instead of daydreaming about how great we are.
Just wonder whether Japan has ever built a luxurious Cruse Liner ?
China has already surpassed Japan in total tonnage of shipbuilding industry, I think she did it in 2007
Im talking military tonnage, not civilian tonnage.
Believe it or not, I actually study in this field. Ballistic steel are very different from steel used in carrier decks. Although a lot of these steel look similar on paper, they very greatly in extreme situations. Ballistic steels don't have to stand extreme heat, at least not for long. Usually they just endure fraction of a second of strong blast and it ends there. Whereas carrier deck steels are constantly heated from the excess heat generated by the boilers (this is not much for this grade of steel, but it will do damage after decades of wear and tear) and especially the few thousand degrees of torture from the jet engines. Fighter jets have to turn on their afterburner when launching from a carrier, which will torch the deck after many seconds of exposure. Then the relatively cold steam and moisture from the sea could weaken the steel. It might not be visible at first, but definitely will after many years. (Personal thoughts, if the Indians make it, it probably crack after few months, just like the stadium built for the Commonwealth Games) It also has to resist corrosion of sea salt, along with possible attacks from anti ship missiles. This is the same as jet engines used in commercial jets and fighter jets. They have to be used over and over again, which stress is the main factor. This is why Chinese missile engines can match the level of reliability to those Western counterparts, but jet engines cannot.
I agree pugachev, however that doesnt mean that china will give up building AC. Even if its high tech grade steel cant reach western reliability, it will simply mean addicional repairs/maintenance compared to western AC´s. Its steel wont last decades, but it wont stop china from building AC´s. Going by your measure, ws-10a wouldnt ever be put to service because it isnt as reliable as western engines.
Kuznetzov was built 3 decades ago. i wonder how advanced soviet steel was at the time. That didnt stop them from building the ships.
But i agree that much of chinas equipment still comes from abroad. but give it a couple of decades at most, and the picture may be different.