Chapter 1457: Re-smelting steel

5m wide plate rolling mill, you know by this name, this thing must be a heavy equipment whose weight needs to be measured by "tons", but if you want to solve the problem of heavy equipment, you naturally need to find someone with only a primary school degree Old man.
"Go and help me get the third picture from the second row on the wall." The old man unceremoniously sent the world-renowned rich man, and the rich man was completely happy, and did the same. Not wrong.
The old man took the photo, wiped the surface of the spotless frame with his sleeve, and said with emotion: "Wide thick plate mill, in order to build this machine back then, more than 80,000 people were mobilized and fought hard in one breath. Twelve years!"
The corner of Tan Zhenhua's eyes swept over the photo, and he saw a group of plainly dressed people posing in front of the huge machine in the photo. Their faces were filled with heartfelt smiles. Shen Hongduan sat in the middle, smiling especially Brilliant, there is a line of small characters just below this photo: Commemoration of the commissioning of Wugang 4200mm thick plate mill, August 6, 1978.
No wonder the old man was praised by the elders as "China's chief engineer". The major engineering equipment built after the founding of the new China is almost all from the old hand. He is the Dinghai Shenzhen of China Heavy Industries!
But what Tan Zhenhua is most concerned about at this time is that since Wugang has a 4200 mm wide plate rolling mill, will it be able to meet his requirements?
"I'm afraid it won't work." The old man withdrew his nostalgic gaze. The first sentence poured a basin of cold water into Tan Zhenhua's head: "Wugang's rolling mill was designed and started in 1966, and construction was completed in 1978. Hua, you should know what era it was. Back then, we were able to complete the construction of the entire project and it was already a great achievement. Therefore, there are no way to go into many details. I know what you want to do, but I did it last year I talked about this issue with Academician and Academician Yang. Academician Yang said that the thick plate you need not only needs a large width, but also the surface needs to be particularly flat. According to his experience, the surface unevenness of the entire deck after welding is completed. No more than 5mm, Zhenhua, this requirement is an impossible task on the current rolling mill, and its accuracy cannot meet your requirements."
Well, the amount of information in this passage of the old man is very large. The three old men have nothing to do to chat together, and they have long guessed what he wants to do next, and even the problems they may encounter. All have been imagined.
"What should I do?" he asked.
Since the elders have discussed this problem, it is obviously impossible not to discuss the solution, so it will save trouble, he just finds it according to the diagram.
"There is no good way." Shen Hong's answer was helpless and a little bit cunning: "There are only two ways, either, like the 112 factory back then, to completely transform this rolling mill to solve its low rolling force, The problem of low accuracy and high failure rate may be that you reinvest in a new one."
"Uh..." Well, this is the expected result. Tan Zhenhua thought for a while and asked: "If the existing equipment is improved, how much money and time will it take to produce results?"
"Are you going to change it?" Shen Hong thought for a while and said, "Actually I don't recommend you to do this."
"why?"
"Let’s put it this way, what you saw is a rolling mill, but what about it? This is a complete set of thick plate production process, including dozens of processes. The rolling mill is just one of the key equipment, and I see the latest According to international data, the most economical, best output quality and output efficiency method is the integration of continuous casting and rolling, that is, from the casting of molten steel to the final rolling to standard size, it is an integrated continuous process. It is done in a steel plant, especially the steel you want to roll. I heard that it is still a special steel with the latest label. Then I think that Wugang’s equipment needs to be modified to involve more influencing factors in all aspects. It is only coordinated. It is time-consuming and laborious to operate. With that time and effort, I think you might as well start over and develop a new set, so that you can increase the width. There is no need to limit it to the 4200mm limit of the machine. It can be done in one step. Are you designing for 5000mm width in place? You are not without a steel plant."
It seems to make sense?
Of course it makes sense. The old man is not just an academician with profound academic attainments and the founder of New China Heavy Industry Equipment. He has been the Deputy Minister of the First Ministry of Machinery Industry for many years and is familiar with many ways!
Tan Zhenhua is naturally willing to listen to the old man’s golden words. Since he persuades him, he should start a new stove. Anyway, thick plates are more than 100,000 tons, large ships and large-diameter oil and gas longitudinally welded pipes, weapons and armor Giant bridge structural steel, offshore drilling platform structural steel, nuclear power plant containment, large dam gate, power station high pressure boiler steel plate, steel-making blast furnace shell, large oil and gas storage tank, large mechanical structural steel, mold steel, super high-rise buildings and other fields A large number of application requirements, but restricted by production equipment, there are only a few companies around the world that can provide products, especially large-scale wide and heavy plate products. Other than that, there are only two oil and gas pipelines that need to be constructed in Tan Zhenhua’s own plan. So instead of spending big money on other people’s products, it’s better to make a set yourself. I’m afraid that the money saved in the construction of these two oil and gas pipelines will be enough to pay back the cost. This investment is obviously worthwhile.
I just don’t know how much it costs to build such a set of things, and how much time does it take?
"Old Shen, the 4200mm rolling mill you designed and built back then, but the "Guo" brand project, according to your statement, mobilized more than 80,000 people, and it took 12 years to finally build it. Then I'm going to do it now. It will take that long, right?" This is a question that Tan Zhenhua is more concerned about. To be honest, he can't afford to wait for 12 years.
"In 12 years, it was calculated from the construction of an entire steel plant from scratch. Many of you are ready-made, of course, it does not take that long." The old man said slowly: "And the current technology is far from comparable to that of the past, I Think about it, 3-5 years is almost the same, and with your communicative skills, it should be no problem to get some foreign advanced level sub-system suppliers? So this rolling mill, let's aim at the international advanced level go with!"
The international advanced level is naturally Tan Er's goal, but to achieve such a goal, it is natural to pay a great price. Tan Zhenhua couldn't help but ask: "Shen Lao, then do you estimate how much it will cost?"
Shen Hong stretched out three fingers slowly and shook it: "I guess that number."
"300 million yuan?"
"300 million? Haha, what good do you think, add another zero."