When Li Yifan was in Japan before, through the relationship of Isamu Nobuda, he really got a lot of special steel smelting jishu from him.

Among them, all of them are the current international mainstream powder metallurgy, or coating and other aspects of jishu.

When he entered the steel industry, he didn't think about the steel business at first, and he mainly got some special steel materials for construction from Annie Lee in Singapore.

These jishu are not suitable for high-speed rail, and the demand for special steel for high-speed rail is actually mainly focused on steel wheels, bearings, and high-strength springs.

To be honest, he doesn't have these jishu yet, but this doesn't prevent him from bragging about it with Minister Wang.

In his previous life, he entered the secret service, and then there was a year or two when he was specifically responsible for foreign jishu materials, especially in the most scarce special metal smelting industry in China, and he had roughly dabbled in some information.

He knows that there are many companies in Japan that are very good at bearing steel, steel wheels, or high-strength springs, but these companies are not big companies like Nippon Steel in Japan.

Because these jishu are a bit too low-end for a company of Nippon Steel's level, they disdain to engage in these jishu.

And these jishu are precisely the specialties of those small and medium-sized steel enterprises in Japan, such as Sanyo in Japan, Daido Chita in Japan, Aichi in Japan, or Sumitomo Okura.

These iron and steel enterprises, to get international, may not be particularly famous, but in bearing steel. Gear steel. Or high-strength spring steel. In terms of structural steel and bonded steel, they all have their own uniqueness.

Moreover, such a steel company does not have a high degree of secrecy for its own jishu monitoring, so when it was in Japan and stole the jishu of these steel companies, it was not difficult for Li Yifan to jishu.

He still remembers that he was in Japan at that time. It only took more than three months to dig up the jishu of these small and medium-sized iron and steel enterprises, buy jishu personnel, cut into jishu drawings, and so on, which is very easy.

At that time, I got a lot of information back, and then took it to domestic military experts, so I analyzed it, and found that the original Japanese made these high-quality bearing steels. And gear steel or something, it's not that they use materials. How much more advanced than us.

Different from the mysterious and mysterious jishu of powder metallurgy, powder metallurgy has high requirements for materials, such as adding a certain trace element, the requirements for time and heat are very strict and very high.

The secret of the Japanese in this kind of bearing steel, gear steel, and high-strength spring steel lies in their smelting process.

For example, the first step of smelting is a large electric furnace, and then the converter process, which can reduce the residual elements in the crude steel, but when making steel in China, it is also a large electric furnace, but at that time, there was no domestic iron and steel company, which would use the converter process later, so that the crude steel we smelted is not as good as others, and the quality of scrap steel is not as good as others, the quality is not as good as people, and the remaining waste is not as good as people.

It has fallen behind from the first part, and in the second part, people will also use manure spray dephosphorization, desulfurization, and converter steel vacuum slag removal jishu, but the domestic circuit does use eccentric bottom steel jishu, for the research on converter vacuum slag removal jishu, it is a blank......

The third part of the family is RH vacuum degassing jishu, and the old VD deoxygenation jishu is still used in China.

The fourth part, people generally use electromagnetic stirring jishu, and we are still using crystallizer electromagnetic stirring, the fifth part in the rolling stage of zuihou, people are in the light pressure environment with large diameter roller jishu, continuous forging, and liquid pressure and other jishu, and the domestic can only hehe......

One step is poor, to zuihou step by step, which leads to zuihou, the special steel we produce, compared with other people's special steel, whether in terms of use strength, or service life, the difference is not as simple as a star and a half.

To put it simply, the ductile iron smelted in this way can be used as a wheel or bearing for high-speed rail, and can work for tens of thousands of hours in a high-temperature, high-pressure, and high-strength environment.

And our wheels or bearing steels made of ductile iron, in the same environment, work for hundreds of hours, there will be cracks, if it takes thousands of hours, it is estimated that the people in the car are likely to go back to see God.

This is the gap, at the beginning, we were poor in the process, and later superimposed, we were poor in jishu.

This set of smelting process, in fact, is in the rolling stage of Zuihou, which requires some jishu content, and the previous ones can be completed through some jishu transformation of smelting equipment and jishu transformation of production processes.

However, many domestic iron and steel companies, in the consideration of cost, did not think about transformation at all.

Indeed, when the steel bars, steel plates, or crude steel billets produced by your steel mill will be snapped up as soon as they appear, anyway, when they are used to build high-rise buildings, the profits are considerable.

Who will think about improving the process jishu and smelting what special steel?

This is thankless, and it is very likely that they will plant trees by themselves and take advantage of the cool for future generations, so the state-owned enterprise officials in Huaguo will not go back to do it, they would rather use the money to improve jishu to eat, drink and have fun, rather than do the things that future generations will enjoy.

For example, I am the CEO of a state-owned steel company, I have a political level, and my task is to make the company's financial statements look better and reflect my ability during my tenure, and then wait for promotion.

The transformation of jishu, the transformation of the process, and the production of special steel are good for the country, but the cost is large, the cycle is long, and there will be a risk of failure.

Even if it succeeds, it may not be completed during my term of office, maybe as soon as I step down, when my successor comes to power, it will be done, so that the merit will be credited to my successor?

So who would want to do such a thing?

So when we don't know what's going on, we often feel that the gap with Japan and Germany is not a little bit worse, but after a detailed understanding of the gap between us and them, we will find that everyone is just a layer of window paper, but no one wants to pierce this thin layer of window paper......

The large state-owned factories will not do it, and the small private factories will not do it, after all, they do not have the financial resources......

Thinking about these pasts now, Li Yifan will still feel real heartache, and in this life, what he wants to do is this person who pierced the window paper.

Minister Wang and Director Shen, although they are also people who use special steel for high-speed rail, they are not as detailed as Li Yifan.

In fact, these materials were all learned from his previous life, when Li Yifan went to Japan to plagiarize materials, but at that time, because of some emotion, he remembered it very deeply.

Although he doesn't have these jishu in his hands, it is not difficult to get them from Japan, and now his steel plant is only in the initial stage, but it does not prevent him from bragging in front of Minister Wang and Director Shen.

After such a blow, he was immediately promoted to the status of a special steel smelting expert in the eyes of Minister Wang and Director Shen.

Sure enough, he is a top student of Beijing Normal University, which can be said to be true, they used to know that the special steel of the Japanese is better than the special steel of the country, and it is suitable for the wheels and bearings of high-speed rail.

However, people's special steel, specifically better than our domestic special steel, weishenme will be better than our country, and if our domestic production is according to their methods, how much it will cost, how long the cycle, do not understand.

But now listening to Li Yifan's words, feelings are just such a simple thing, as long as the process is improved, we can also produce the same wheel steel and bearing steel as the Japanese?

Now Minister Wang and Director Shen are even happier, after all, if they can handle this, then when they negotiate with foreigners in the future, they will have one less place to be constrained by those foreigners.

Moreover, the cost of using domestic products is much lower than that of importing from abroad, and this can be regarded as one of their absolute achievements!

"Xiao Li, hearing you say this, I can't wait to see your factory, how about it? When will you be able to bring out a sample and show it to us? ”

Minister Wang made a decision on the spot, he was originally a resolute person, and he didn't like to drag mud and water in anything.

And Li Yifan's side, of course, should play Tai Chi appropriately.

"Uncle Wang, as you know, we have just entered this field, at the beginning, we aimed at special steel for construction, and the main direction of business is corrosion-proof, rust-resistant high-strength steel, I never thought of doing business in the Ministry of Railways. So in terms of bearing steel and wheel steel, although we have reserves, we don't plan to take them out so early. If it is to be produced, the production line needs to be adjusted, and the process needs to be adjusted, which may take a while. ”

He lied, his face was not red, his heart was not beating, even an old fritter like Minister Wang fooled him, and even Yang Yuhe couldn't help but be impressed by him.

"Haha, we understand this, don't worry, anyway, in the last three years, as long as you can get a sample of the level you said, you can come to the capital at any time to find your Uncle Wang......" (to be continued......)