Yang Wenli's main focus is still on scientific research, because everything is extremely difficult, and it is necessary to ask for nothing, even the most basic materials.

After taking time to participate in the triumphal ceremony, Yang Wenli plunged into the industrial zone again, his first stop was the special steel research and development team, every time he went to which team, he had to make a routine speech, because everyone wanted him to be inspired and teach some advanced concepts.

"Special steel is not easy to do, especially marine special steel has high requirements, and it is even more difficult to do. In order not to delay the overall progress of scientific research, I plan to make two preparations.

The first group specializes in alloy steel technology, trying to dope special metals such as manganese, tungsten, chromium, antimony, vanadium, etc., the doping is not the more the better, nor the more miscellaneous the better, its purpose is to make rare metals and iron atoms form a special and very stable co-bond metal.

This is essentially a physical reaction between atoms, you have to start from a micro place, you need high-precision microscopic equipment, you can report to Wang Rucheng Wang Zong, and he will deploy and solve it for you.

There is also a special metal that you have not seen and imagined, and that is single crystals, in fact, any element can form a single crystal, but they require very special conditions, such as high temperature and high pressure or low temperature and high pressure.

For example, the ice that I often see in winter is actually a single crystal of water molecules, and it is formed at a temperature of zero degrees, which is the simplest.

Generally speaking, the strength of single crystals at the molecular level is not much higher than that of the original substance, so we can not study it for the time being.

Only atomic-scale single crystals, because of the special atomic bond structure, generally hexagonal, is the most stable structure.

In addition, single crystals have the characteristics of azimuth consistency, which is a global share of a little force, just like one chopstick is easy to break, but ten chopsticks are held together and difficult to break. This characteristic of it can make the otherwise ordinary metal have incredibly powerful properties.

For example, ordinary steel, if we can find a way to smelt it into ultra-pure iron, we will find that it is very soft, and it is very easy to oxidize, almost useless, but if we can find out the crystallization conditions of iron atoms and find a way to crystallize it, it will leap into super steel, its strength is very large, it can withstand more than 1,000 atmospheres, and it is not easy to oxidize, resistant to acid and alkali corrosion, and it is the best material for our shipbuilding.

However, there are several difficulties for you to overcome, the first is ultra-pure iron, why is it called ultra-pure iron? It is to require the purity of iron content above nine decimal places, which is a task that is almost impossible and requires you to find a way to do it.

The second difficulty is to find the conditions for the crystallization of iron, which is a technique that even later generations do not have, and I cannot help or hint at you.

Oh! No, there is still a hint, that is, point crystallization, even if any substance reaches the crystallization conditions, if it does not point to crystallization, the crystallization will be very slow, or cause crystallization failure.

In order to improve the probability of crystallization, it is necessary to use seed crystals to crystallize, and the specific method is to use a small crystal as a seed crystal, put it into the substance to be crystallized, and it can be crystallized instantly, which is the point crystallization technology.

You can use ice water when it is about to freeze to see if you put in a small grain of ice, and it will make the ice water freeze instantly.

It is very difficult for this second group to develop super steel, and it may not succeed in the short term, but as long as it is developed, it will enable China's military science and technology to take a big step forward, and the future research and development of weapons and equipment will be a smooth road.

Material problems have always been the main reason restricting the development of science and technology, so your research, which seems boring, is actually the most important work.

Everyone, come on! For our great Motherland. ”

Yang Wenli did not go to the paint research group in the materials research group, because paint is a chemical field, and he basically does not understand it and cannot give guidance.

In addition, chemical research is not like other research, it is completely a probability event, there is no causal necessity, it can only rely on scientific researchers, with a variety of chemical substances, different chemical reaction experiments, we later learn the chemical theory, in fact, are the scientific researchers after the experiment, summed up the theory.

Just like the insulating paint in the previous research on motors, the plastic that was studied by the way is actually the product of different chemical experiments. Therefore, paint also requires researchers to conduct a lot of experiments to develop paints with different properties and different uses.

The research of materials is difficult, but the research and design of steam turbines are also very, very difficult, Yang Wenli has never seen a steam turbine in his previous life, he has only heard of this proper term, and he does not know how it works.

Therefore, the design of the entire steam turbine is equivalent to Yang Wenli's own design, without using the experience of his predecessors.

However, he learned from the design experience of later generations of marine gas turbines, the volume and power of a single steam turbine are not large, in order to match various types of large, medium and small ships, large ships are equipped with several steam turbines, and small ships are equipped with one, which is more flexible and convenient.

In addition, he also absorbed the latest high-pressure pump jet concept of later ships, and did not plan to use traditional propeller propulsion technology.

This can omit the huge volume of the transmission shaft and reducer, save weight, reduce the volume is one aspect, the research of marine reducer is not simple, later generations of China will rely on imports. (Note: before 2003) shows that its technical content is very high.

In order to improve the thermal efficiency of the steam turbine, Yang Wenli made a unique design, he used the steam turbine to directly drive the generator to generate electricity, and then use electricity to drive the high-pressure pump jet motor, so that the structure of the entire steam turbine unit is very simple.

In fact, the steam turbine designed by Yang Wenli is the steam turbine generator set of later generations, but because it is a marine relationship, it is very sensitive to weight and has relatively higher safety requirements, so the corresponding requirements for materials are much higher.

For example, the boiler of the steam generator set can be made thick enough, and the strength can be guaranteed by the overall mold casting of ordinary steel.

But the marine boiler is not good, a thick iron lump as heavy as a stone is incomprehensible, it needs to be thin enough, but it must be safe enough, you can imagine how difficult it is to develop it.

Also, because of its advanced design, it only has one boiler and no steam pipes, which is much more difficult than the small water tube boilers of the later World War II period.

Of course, the steam turbine designed by Yang Wenli was less than a tenth of the size of the steam turbine during World War II, but it was even more powerful.

The inside of the steam turbine is also a three-stage work, which is divided into high-pressure area, medium-pressure area, and low-pressure area, after the high-pressure steam enters the high-pressure area to do work, it returns to the boiler shell interlayer for heating, and then enters the medium-pressure area to do work, and after coming out of the medium-pressure area, it directly enters the low-pressure area to do work.

The medium pressure area and the low pressure area are connected as a whole, but the high pressure area is separate, but they share a main shaft, so they have to solve the problem of steam leakage, but in terms of precision technology, they have no difficulty, not to mention Yang Wenli, just his guards are all at the level of a ninth-level technician, and they can be easily solved.

Therefore, in general, there is no difficulty in design, there is no difficulty in craftsmanship, and the only difficulty is in the material.

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