Tang Zifeng didn't know what was going on with the heavy-duty crankshaft machine tool that Kang Zhichao said, according to Guan Yong's statement, this should be a very high-end machine tool, so that the Ministry of Machinery did not dare to include it in the scope of development for a while. However, he deeply knows the truth that losing is not losing, and in the face of Kang Zhichao's provocation, he must appear better than the other party.

As for whether to develop this kind of machine tool in the future, that is a question to be considered after leaving here. At that time, even if he is cowardly, he does not dare to touch this kind of high-end machine tool that has no friends, what can he do? Big deal, he will never come to the shipping company again in his life, and Lao Kang can still rush to Linyi to force him to eat the keyboard?

Tang Zifeng pretended to be cold, which really surprised Kang Zhichao. This old man is really not a person with a city government, in terms of playing with his heart, Tang Zifeng ten years ago was able to play him around. Seeing Tang Zifeng's calm appearance, Kang Zhichao frowned, and asked tentatively: "You mean that you can make a heavy-duty crankshaft machine tool?"

"What, Chief Engineer Kang doesn't have confidence in us?" Tang Zifeng asked rhetorically.

Kang Zhichao thought about it, nodded vigorously as if he was angry, and said, "That's right, I just don't have confidence in you." ”

Tang Zifeng looked up to the sky and laughed: "Haha, I am not surprised by Chief Engineer Kang's words." In Chief Kang's mind, it is estimated that what foreigners can come up with, Chinese will definitely not be able to come up with. I now understand why Chief Engineer Kang didn't say a word when he saw us, so he asked about the crankshaft machine tool. ”

"Why do you say that?" Kang Zhichao asked subconsciously.

He just mentioned the crankshaft machine tool, just because the crankshaft machine tool is very important to the shipping company, and the domestic machine tool companies have not been able to provide this kind of machine tool, so he is very dissatisfied. But listening to Tang Zifeng's meaning, he seemed to feel that his move had other meanings, which was something that he hadn't even thought about.

Tang Zifeng said with a sarcastic face: "It's very simple, Chief Engineer Kang is sure that we can't get a heavy-duty crankshaft machine tool." Then you have reason to say that the reason why you can't build a ship is not because of yourself, but because the mechanical department did not provide you with machine tools. I estimate that what you just impassionedly said about 2.5 million deadweight tons, that is, to fool the higher-level leaders? In the mind of Chief Kang, do you think that the Chinese are not worthy of shipbuilding?"

"Nonsense! When did I say this!" Kang Zhichao was furious, "It's clear that your mechanical department is a vegetarian meal, and you can't get a useful machine tool, but you beat it upside down, and you talked about us." In the past few years alone, we have developed 70,000 tons of 'Jiangnan type' Panamanian bulk carriers, 95,000 tons of 'Dalian class' oil tankers, 35,000 tons of shallow draft coal carriers, and 300 passenger self-controlled hydrofoils.

"These are all types of ships that fill the gap in China, and they are basically close to the shipbuilding level of the contemporary world, so why do you say that we are fooling the superior leaders! You can make it clear to me, or ...... , or I'll go and report your problem to your ministry leaders!"

Seeing Lao Kang angry, Shen Weihao, Luo Xiaolu and others were a little panicked, but Tang Zifeng became more and more calm. This time, he has already grasped Kang Zhichao's weakness, that is, this person is actually not good at quarreling, but he has a good face, and he has to fight with others for everything.

As long as the other party is willing to be reasonable, Tang Zifeng will have no psychological pressure at all. In the four years of college, he practiced this mouth, and with a three-inch tongue, he could heal the dead and live white bones. In the factory, Qin Zhongnian quarreled with him, and he never survived three rounds, Kang Zhichao's emotional intelligence was not as good as Qin Zhongnian's, how could he be Tang Zifeng's opponent?

"Hey, Guan Gong, I seem to have heard someone say just now that they were going to build a 2.5 million deadweight ship in 2000, but they all got stuck on a shaft, do you have any impression?" Tang Zifeng pretended to ask Guan Yong for confirmation.

The person surnamed Guan is really not suitable to be an engineer, and the abbreviation is "Guan Gong", which makes people mistakenly think that he is playing with a big knife. Of course, the surname Gong is even more unsuitable to be an engineer, and it sounds like the kind of person who never finishes writing......

Of course, Kang Zhichao would not pay attention to the issue of a title, he had already been successfully provoked by Tang Zifeng, he grabbed the conversation and said, "That's right, that's what I said." It is true that we are planning to have a shipbuilding capacity of 2.5 million deadweight tons by the year 2000, but the current situation is that the ship is waiting for the machine, and the machine is equal to the shaft. We can't build enough marine diesel engines without enough marine crankshafts, and without diesel engines, we build a ship with just an iron shell.

"And to make marine crankshafts, you need heavy-duty crankshaft machines, and that's what your mechanical department does. Tell me, aren't you delaying our work!"

The so-called "ship and machine" is a stalk in the shipbuilding industry. The so-called "engine" refers to a large marine diesel engine, and the "shaft" is the crankshaft in the diesel engine.

In recent years, China's shipbuilding capacity has made rapid progress, and it has been able to build 150,000-ton bulk carriers, 140,000-ton oil tankers, 120,000-ton large shuttle oil tankers, and the self-developed 70,000-ton 'Jiangnan' Panamax bulk carrier that Kangzhi Chaoxian has just displayed.

Marine diesel engine is the heart of the ship, China's marine diesel engine technology started late, although it has been catching up, but by the end of the 70s, there is still a big gap with the international advanced level. In 1978 and 1980, China introduced the diesel engine production license technology of Sulzer of Switzerland and BW of Denmark respectively, and by 1997, a total of 476 marine low-speed diesel engines with a total of 4.83 million horsepower were manufactured. Some of these diesel engines are installed on domestic ships, most of them are used for export ships, and 6 single engines are directly exported to Germany and Brazil, all of which have passed the inspection of internationally renowned classification societies.

The output of imported diesel engines is not enough to meet the needs of the development of the shipbuilding industry, resulting in some ships being manufactured but having to wait for supporting diesel engines, which is the phenomenon of the so-called "ship waiting for engines".

Even worse than the "ship and the machine" is the problem of the "machine and the machine". The crankshaft is the core component of the diesel engine, and the diesel engine cannot be built without the crankshaft. The large marine crankshaft has a large weight and extremely high processing accuracy requirements, which is beyond the ability of domestic enterprises, resulting in the large marine crankshafts used in China all relying on imports.

Once a thing is completely dependent on imports, the right to speak is in the hands of others. Due to competitive considerations, foreign crankshaft suppliers have repeatedly adopted restrictive policies against China, and even if they agree to supply, the cycle is intolerably long. Domestic diesel engine factories are often limited by the supply of crankshafts, and cannot manufacture the diesel engines required by shipyards, which is the so-called "engine equiaxes".

The reason why large crankshafts cannot be manufactured in China is due to the manufacturing difficulty of crankshaft processing equipment, that is, CNC heavy-duty crankshaft milling-turning compound machine tools. The length of the workpiece can reach 15 meters and the weight can reach 180 tons, and the machining accuracy error cannot exceed 0.02 mm, which is 1/4 of a hair. A crankshaft includes the main journal, crank journal, flange and other parts, which need to be fully finished on a single machine.

So far, only Germany and Japan in the world have mastered the manufacturing technology of this machine tool, and even Japan's technology is not enough, and the performance indicators of machine tools cannot be compared with Germany.

In the past few days, a large container ship undertaken by the shipping company is about to be launched, but the diesel engine supporting it has not been delivered. Kang Zhichao personally went to the Pujiang Marine Diesel Engine Factory, which is responsible for manufacturing diesel engines, to learn about the situation, and learned that the reason was that a crankshaft he ordered from South Korea had not arrived. The diesel engine factory negotiated with the Korean supplier several times, but the other party found various reasons to prevaricate. Even the diesel engine factory wanted the other party to give a clear delivery time, but the other party refused to agree, just vaguely.

For this performance of the South Korean side, the leaders of the diesel engine factory and Kang Zhichao are like mirrors in their hearts. South Korea's crankshaft suppliers are the same owner as shipyards, and South Korea has long been dissatisfied with the rise of China's shipbuilding industry, and does not want to see China steal South Korea's shipbuilding business. The delay in the supply of crankshafts is actually to delay the delivery of ships to customers in China, thereby destroying the credibility of Chinese shipyards.

South Korea does not have the manufacturing technology of crankshaft machine tools, so they are able to manufacture crankshafts because they purchased crankshaft machine tools from Germany. The shipbuilding industry company had also planned to purchase several crankshaft machines from Germany to solve the problem of not being able to manufacture crankshafts on its own. However, the German side claims that this machine tool is a device that is included in the export control list, and this export control policy is aimed at the countries of the Eastern Bloc, and South Korea is not within its scope of restrictions.

Kang Zhichao came back from Pujiang with a stomach full of anger, and before the anger subsided, he met Tang Zifeng and his party to visit, saying that they wanted to understand the demand for machine tools in the shipbuilding industry, and this was just hitting the muzzle. Kang Zhichao spoke disrespectfully to Tang Zifeng with one mouth, and it was for this reason that he spoke.

Of course, Tang Zifeng didn't know what was behind this, but what Kang Zhichao said about "ships and machines" and "machines and shafts", Tang Zifeng once saw it in a newspaper, and he didn't particularly care about it at the time. He stared at Kang Zhichao's eyes and asked, "Chief Engineer Kang, let me confirm with you again, do you mean that if we can build the heavy-duty crankshaft machine tool you want, your shipbuilding plan will be successfully realized?"

"Of course!" Kangji replied.

"So, do you want to use our other machine tools for shipbuilding?"

"I need a lot of it!" Kang Zhichao said, perhaps in order to generalize Tang Zifeng's army, he counted with his fingers: "To build a diesel engine, you need a heavy-duty gantry boring and milling machine; to build a propeller thruster, you need a large five-axis turning and milling center, a six-axis five-linkage CNC boring and milling center; a marine instrument needs a precision CNC machine tool; and a large CNC cutting equipment is needed for ship plate cutting." If you have the ability to come up with heavy-duty crankshaft machine tools, I will take my reputation as a guarantee of Kangzhichao, and we will give priority to domestic machines for all these machine tools!"