Ordinary steel pipes are rolled out of steel plates, so there will be a gap, if the technology is not at home, there may be problems, the steel pipes of the two township steel mills had this kind of problem, Yang Xin almost died of a sudden cerebral hemorrhage because he couldn't sell it.

For high-pressure equipment, steel pipes with gaps cannot be used, and no gaps must be used, such as common boilers, blast furnaces burn out high-temperature and high-pressure water vapor, if the conventional seamed steel pipes are easy to collapse the pipes, and seamless steel pipes must be used.

However, for a long time, it was impossible to produce advanced seamless steel pipes in large quantities in China, after all, there was no advanced equipment in China, so it could only be used to make cannon barrels: first make a deep hole, and then expand the chamber, not only the construction time is long, but also the quality can not be guaranteed.

Therefore, with the development of the country's economy, when more and more thermal power generating units need to be launched, various construction sites are worried about seamless steel pipes, and it is not cheap to buy common P92 seamless steel pipes from the United States, the price is as high as 160,000 yuan a ton, and a ton of steel is equivalent to a high-end car!

As for how high the demand is, a 1000 MW unit, from the supercritical steam boiler to the power station, all the pipes need this large-diameter thick-walled P92 seamless steel pipe, which requires a total of more than 1300 tons! Even if only two of these plants are built in a year, the amount of steel required is astronomical. If you take into account the demand for fertilizers, chemical plants, etc., the annual demand for this kind of steel pipe alone is more than 20,000 tons!

If the same type of steel can be produced in China, it can greatly reduce the amount of imports, so in the design stage of the 80,000-ton die forging press, Qin Feng put forward this requirement: by changing the mold, it can also manufacture seamless steel pipes!

Now, it's time to experiment!

P92 seamless steel pipe is only a material standard, and there are many kinds of seamless steel pipes under this standard, the most commonly used is steel with a length of six meters and a diameter of 800 mm.

This diameter refers to the inner diameter, after all, for seamless steel pipes, the size of the internal volume is the most important.

"At present, what is urgently needed in China is 800 * 195 seamless steel pipes, so we first manufactured this kind of mold, and waited until a batch came out and sent it to the relevant departments for acceptance, as long as the acceptance is qualified, there should be many orders." Zhou Minghui said.

80,000 tons of die forging press, there will be a lot of production tasks, some even foreign processing orders, but now, the big guy wants to first solve the domestic production and construction of special steel.

This criterion is measured by the minimum inner diameter * minimum wall thickness, that is, the internal diameter of this seamless steel pipe is 800 mm, and the thickness is 195 mm, when the battleship was popular, the maximum caliber was only 460 mm, and the mustache once planned a super cannon with a diameter of 800 mm, but it was also short-lived.

Now, in the steel mill of Dongfang Jincheng, steel of this grade is about to be built!

At this time, Qin Feng's heart was extremely excited.

In his previous time and space, China was also facing this problem, so the second machine factory located in the grassland decided to launch the project of 36,000 tons of vertical non-ferrous metal extruder, after the construction of this machine, successfully solved the domestic steel pipe demand problem, the price of P92 seamless steel pipe from 160,000 yuan to less than 50,000 yuan.

Now, our die forging press is 80,000 tons, although it is not a professional vertical extruder, but it can be used for a mold, and the tonnage of 80,000 tons can easily complete the manufacture of seamless steel pipes, and the quality of the manufacturing will be better!

It was already dark outside, and everyone inside was still busy, just like a child who got a toy and must take it out to play with as soon as possible.

Qin Feng was also full of expectations.

"Let's let, let's let, the billet is coming!" Someone shouted outside.

The track inside the factory has been laid, and there is a special track between the steelmaking furnace and the die forging press, which can directly transport the fiery billet!

In the expectation of everyone, the billet was transported into the factory through a special rail car, the gantry crane was started, and the blank was put into the die forging press.

Zhou Minghui on the side began to introduce.

"At present, there are three main seamless steel pipe manufacturing processes used in the world, namely Mandru grinding process, Pilger process and cold drawing process, the first is heated in the rotary bottom heating furnace, and then perforated with a perforating machine to create a mother pipe, the process is very complex, the second is the plug rolling process, the plug with a diameter roughly the same as the inner diameter of the pipe is forced through the billet...... Compared with the three processes, the cold drawing process is the simplest, but this process requires a powerful hydraulic press, generally speaking, the pressure is more than 20,000 tons to have an effect, our die forging press has 80,000 tons, so it is completely possible to use the cold drawing process, and it can be formed at one time without multiple cold drawing. ”

The first two processes are operated in a hot state, so that the performance of the steel pipe may be affected, and cold drawing is to operate in a cold state, and then heat treatment, which is simpler.

However, the billet used now is hot, and that's because the dough needs to be kneaded first to turn the billet into a long strip shape.

The huge billet is stuffed into the die forging press, in which it is beaten, and the hard steel is like a dough, which is repeatedly ravaged, and after several times, the internal properties of the steel are greatly improved and improved, and when the steel gradually cools, the billet also becomes a long shape, and then, it can enter a special mold for cold drawing operation.

Watching the seamless steel pipe gradually take shape, Qin Feng's mood was also a little excited, he had been worrying about how to make money recently, and now, the opportunity is here again! The die forging press has been tinkered out, and with this machine, you can count the money until you have a soft hand!

The steel pipe is generated little by little, with an inner diameter of 800 mm and a thickness of 195 mm, this kind of steel pipe can be used as a super cannon!

Just as Qin Feng was looking expectantly, Wang Fang walked over gently: "Mr. Qin, there is a call from the capital, and a guest is visiting. ”

"Xiaofang, what guest?"

"Friedel."

Qin Feng has only dealt with Friedel once, or under the introduction of Dr. Wright, the agreement reached at that time was not followed up, because the guy named Pete, now, Friedel came over again, definitely for the follow-up project.

"Tell him to wait." Qin Feng said.

Hmph, it was clearly said that the eight F-16s were ours, but the Yankees still wanted to point fingers, but fortunately we have Lao Ba, and we don't need their help, now, they come to beg themselves, hang them first!

"It's done, it's done!" At this moment, Zhou Minghui shouted excitedly.

The first seamless steel pipe with the cold-drawn process produced by Dongfang itself has been made!

Although it is called the cold drawing process, but in the process of cold drawing, the appearance of the steel pipe is still very hot, can not be touched, the big guy looks at the steel pipe lifted by the crane, is very excited.

I haven't seen this kind of thick-walled seamless steel pipe, I don't know how domineering this steel pipe is, when the first steel pipe came out, the big guys all opened their eyes wide.

"This tube is too much like a cannon tube!"

"Yes, Mr. Qin, if you stuff a cannonball inside, can it be used as a cannon?"

"Guys, you're too good at associating." Qin Feng said: "We are a private enterprise, we only produce civilian products!" Cannons or something, is what military enterprises should do, and then there is a tempering process and a calibration process, right? After these processes are completed, we can cut a section of the steel pipe and send it to the relevant domestic institutions for inspection. ”

"No need, we're here!" At this moment, an excited voice came from outside: "Mr. Qin, on behalf of Dagang Power Plant, I thank you, as long as the quality of the thick-walled seamless steel pipes you produce is qualified, I hope that all the 800 tons of seamless steel pipes we need can be provided by you!" ”

With the continuous development of the development zone, the problem of power supply shortage is becoming increasingly prominent, so the new generator set is imminent.

The main power supply agency of Jincheng Development Zone is Dagang Power Plant, the first phase of the project was started in 74 years, two fuel generator sets were installed, a single 328.5 megawatts, two units were connected to the grid in 78 and 79 years respectively, recently, according to the country's Seventh Five-Year Plan, two coal-fired generator units should be added here, the single power is still 328.5 megawatts, and then after two units, it can greatly improve the power supply capacity.

The generator has been decided to be purchased from Italy, and the boiler and steam turbine are produced domestically, which is no problem, but the thick-walled seamless steel pipe required for the pipe from the boiler to the steam turbine is still a problem.

800 tons of seamless steel pipes require tens of millions of dollars in foreign exchange, and the state can't allocate this money for the time being!

Dagang Power Plant was still worried about this matter, and when it heard that the steel plant here was trial-producing seamless steel pipes, it immediately became excited.

If it is a product of other factories, they may not dare to use it, but the steel plant under the Pacific Group is very good! They smelted out a few furnaces of ballpoint pen ball steel, which is enough for various ballpoint pen manufacturers in China to use for a year, they produced steel cables, I heard that the Americans also came to purchase, they want to make seamless steel pipes, the quality is definitely not bad!

Feng Ziqi, the person in charge of the second phase of the project, also sighed, thanks to the fact that he was reporting to the city government at the time, and he happened to hear the steel mill call to report the good news, otherwise he didn't know that thick-walled seamless steel pipes had been produced here!

"At present, the international high-temperature and high-pressure resistant thick-walled special steel pipes are basically monopolized by the three giants of the United States, the United States, the German Mannesmann and the Japanese Sumitomo, the price is expensive, the supply cycle is long, our power plant project is dragged by these pipes, Mr. Qin, on behalf of our Dagang Power Plant, thank you!"

"These are what we should do, our own production of thick-walled seamless steel pipes, the price guarantees your satisfaction, 800 tons, that ton is 50,000." Qin Feng said: "It doesn't matter if we suffer a little loss, the main thing is to support the industrial construction of our Jincheng!" ”

Ballpoint pen ball steel is still sold for 60,000 tons, and this thick-walled seamless steel pipe is only sold for 50,000 yuan, which is definitely a conscience price, as for the cost...... That is, one or two thousand, but it can't be counted like this, after all, to make this kind of seamless steel pipe, advanced machinery and equipment are needed, and their 80,000-ton die forging press has spent tens of millions of pounds.

If you buy from abroad, you will have to pay 50,000 US dollars, and you will have to spend precious foreign exchange!

Feng Ziqi nodded: "Okay, 50,000 is 50,000, but we want to take this whole root back and test it." ”

"Of course no problem!" Qin Feng was also very atmospheric: "When the follow-up process is finished, you can take it away, and you can test it casually!" ”

As long as this one is qualified, then continue to produce, as for now...... Qin Feng looked at the excited crowd: "Everyone, our die forging press has been built and put into operation, this is a moment worth celebrating, let's go to the canteen to hold a celebration banquet!" This friend of the brotherly unit, you can come along. ”

This kind of thing doesn't need to be arranged by Qin Feng, Wang Fang has already arranged it, and when the big guy enters the canteen, the celebration banquet has been set on the table, and the fragrance is fragrant.

"Come, on behalf of the Pacific Group, thank you for your efforts, 80,000 tons of die forging press, the world's first! Without everyone's hard work, there would be no today's harvest! ”

"Mr. Qin, in fact, we have long wanted to build this kind of big guy, but we need to invest a lot of money, on behalf of Erzhongji, thank you Pacific Group for giving us a chance to show our strength!" He Ming said: "We enjoy it, and I hope to have the opportunity to continue to cooperate in the future." ”

"Of course, this is just the beginning, and in the future, our steel mills will need a lot of advanced equipment, and we will not import them if we can produce them ourselves." Qin Feng said: "Come, cheers to our industrial development!" ”

After a few glasses of wine, the atmosphere became more lively, Qin Feng looked at Zhou Minghui: "Zhou Gong, this die forging press will be handed over to you in the future, I hope you can make good use of this machine and work hard for the industrial progress of our country." ”

"Yes, Mr. Qin, don't worry, I will work hard. It's my career. ”

"Zhou Gong, people not only have to have a career, but also have a family, I think, you are not young, are we going to have a double happiness and take the marriage with you?"

Wang Fang smiled on the side, looking at Zhou Minghui expectantly.

Zhou Minghui raised his glass: "Mr. Qin, everything is up to your arrangement." ”

"Good! Then you wait for my notification. Qin Feng was overjoyed, Wang Gang had been looking forward to it, this was it, I had to go back another day, tell him the good news, and by the way, pick a suitable date and get married.

Wang Fang smiled. During this time, he was with Zhou Minghui every day, the two have been in love for a long time, this young man is also engaged in technology, and his skills are more exquisite, and he loves to study, Wang Fang likes such a science and engineering man, as for Zhang Shengwang? Where can I compare to Zhou Minghui!

On the other hand, Friedel was in a bad mood.

"That Mr. Qin should not be in the capital, I have already asked every subsidiary of the Pacific Group here in the capital." "He's probably out of town, and if he's in the capital, he'll see us," Pete said. ”

"Pete, it's all a good thing you did, if you weren't so aggressive at the beginning, you wouldn't have forced the Orientals!" Friedel remembered that Pete had broken his good deeds, and that was a burst of anger.

"Mr. Friedel, I didn't do anything wrong, the Orientals exchanged one MiG-29 for our eight F-16s, this is not an equivalent exchange at all, and we charge some more, shouldn't it?"

"Hmph, you're just trying to get more benefits for yourself, but now you're hurting us! The engine of that MiG-29 has reached the end of its life, and we haven't flown for 50 hours yet! Having not mastered the performance of the MiG-29, it is already impossible to fly! The next accessories, you have to count on Mr. Qin, if you offend Mr. Qin, our MiG-29 will become scrap metal! ”

"How can you blame me, who could have known that Lao Maozi's engine life was so short!" Pete is a little helpless, their F100 and F110 engines have a life of two thousand hours, and the RD33 used on the old Maozi MiG-29 has a life span of only two or three hundred hours, who can blame it?

"Now, if we want to continue to fly the MiG-29, we can only get two more engines, which can only be solved by Mr. Qin." Friedel said angrily: "You offended him, and I don't know if Mr. Qin is willing to help." ”

After the engine reaches the end of its life, it can be scrapped or overhauled, however, the Yankees have not disassembled the RD33 engine, even if it is disassembled, the standards of the two sides are different, and the overhaul means that a new production line will be opened, and the price will be quite expensive, and they cannot afford it.

It would be nice if it could be procured from the international arms market! However, they found some arms dealers, and the other party claimed that they could not do anything, after all, this is the engine used in Lao Maozi's most advanced fighter!

They had no choice but to come to Mr. Qin, since Mr. Qin could get the MiG-29 intact, it was even easier to get two MiG-29 engines.

It's a pity that he offended Mr. Qin in this transaction, and Friedel brought Pete over, intending to let him make up for it, but now, he got nothing.

"I heard that the navy has a good relationship with President Qin, and has purchased a large number of arms from President Qin, are we looking for help from the navy?" Pete said.

"We are the Air Force, the most powerful Air Force, how can we ask the Navy for help?" Friedel vetoed it right away, what a joke! The Air Force and the Navy are mortal enemies, and it is good enough that everyone does not dig holes for each other, how can they ask each other for help.

Jingle bells! Just then, the phone rang.

Pete picked up the phone and was instantly excited: "Hey, okay, got it, got it!" ”

Putting down the phone, Pete looked at Friedel: "We have already inquired about the whereabouts of Mr. Qin, he went to Jincheng, where the 80,000-ton die forging press has just been assembled and is about to start trial operation." ”

"Really? Let's go, we'll go now! ”

Right now? Pete looked at the dark sky outside, and then looked at his watch, it was already ten o'clock in the evening, and most of the night had passed?

However, looking at Friedel's expression, he didn't dare to object to anything, and went over the night and visited again the next morning.