Ordinary metal is smelted directly in the steelmaking furnace, then cast into ingots, and then through a series of rolling, cutting and other operations, it becomes the required thing.

Powder metallurgy, on the other hand, belongs to refining, which is a process technology for preparing metal powder or using a mixture of metal powder or non-metallic powder as raw material, through forming and sintering, to manufacture metal materials, composite materials and various types of products.

Powder metallurgy is similar to the production of ceramics, both belong to powder sintering technology, this powder metallurgy technology, is the key production mode in materials science, and plays a pivotal role in the development of new materials.

Listening to Zhu Lao's words, Qin Zhenhua immediately thought of armor-piercing bullets, in the research and development of armor-piercing bullets, a machine factory has always had the strongest strength, Qin Zhenhua has long begun to use tungsten alloy to manufacture, and the performance has been greatly improved.

However, now Qin Zhenhua is still using the most common tungsten alloy, and the warhead cut by the machine tool is not only a waste problem, but also it is impossible to further increase the potential.

If you want to make the armor-piercing ability of the warhead stronger, you need to have a higher density of tungsten alloy and a stronger tungsten alloy.

The greater the density, the stronger the armor-piercing ability, the higher the strength, and the greater the length-diameter ratio can be, so the armor-piercing bullet needs high-density and high-strength tungsten alloy, which Qin Zhenhua cannot study, and can only be handed over to domestic professionals to study.

In China, in the field of powder metallurgy, Huang Laona is second to none, because he is the founder of the domestic powder metallurgy field, and he single-handedly pulled up this project.

With the development of time, many universities have also started the course of powder metallurgy, and there are corresponding research laboratories, and there is a state key laboratory of powder metallurgy.

Qin Zhenhua's slightly inferior complex, after hearing these introductions, all disappeared, and he immediately became excited.

"If we have a more suitable tungsten alloy, then the performance of our armor-piercing projectiles will be stronger, even if we use our current 100mm rifled gun, we can also hit his 300mm penetration!"

The same gun, the shells are different, the armor-piercing ability is also different, and now, the domestic 59 tanks are equipped with a large number of 100-mm rifled guns, the original penetration depth is only more than 100 mm, in front of the modern tank, it is simply powerless, and even you can't beat it yourself.

And now, with the introduction of 105 mm rifled gun technology from the British, including the most needed sliding belt technology in sub-caliber armor-piercing shells, which was later applied to its own 100 mm rifled gun, it immediately rejuvenated the old tree of this gun, and now it can hit more than 200 mm penetration.

Of course, this is not the end, if there are more advanced armor-piercing materials and a larger aspect ratio, the armor-piercing performance will definitely be further improved.

As for their own 105 mm rifled guns, as well as the 120 mm and 125 mm smoothbore guns that are being compared, the penetration depth will be able to properly exceed 400 mm, and even break through to 500 mm.

At the same time, this powder metallurgy technology is not only for firing armor-piercing bullets, but also for firing ceramics, so ceramic armor technology can also find suitable materials from powder metallurgy technology.

Materials science determines the development of a country's basic industry, which is definitely not a big talk.

Qin Zhenhua was like this, with excitement, and Zhu Lao, walked into the State Key Laboratory of Powder Metallurgy, in the laboratory, there is a device like a large drum washing machine, at this time, this device is working, and in front of the device, several people are wearing white coats, waiting for something there.

Qin Zhenhua and Zhu Lao can only observe through the glass, looking at these people who are engaged in scientific research, Qin Zhenhua's heart is full of envy, he has thought more than once that he wants to become this type of scientist, but unfortunately, he finally became a worker in a tank factory.

Now, Qin Zhenhua looked at the research of the people there, they were operating this equipment, and there was a buzzing sound inside, which was a kind of internal vibration brought by high-frequency stimulation, and it could even be said that every particle that made up the substance was vibrating.

I don't know how long it took, but the machine inside finally stopped ringing, and then, the equipment was opened, and the workpiece inside, which was still in a high temperature state, was taken out, and it was a round bar about one meter long.

The whole body is jet black, shiny, and it looks like tungsten alloy.

When they had done all this, they turned back, and one of them smiled and waved to Zhu Lao, and then walked out quickly.

"Lao Zhu, what kind of wind blew you here?" After taking off the white coat, the person who came out also showed his white hair and said to Zhu Lao.

"Come to the meeting, just have time, come and have a look." Zhu Lao said: "Lao Huang, how are you doing your research? ”

"The 78th trial is underway, and the test sample has come out, waiting to test it and see how it works." Huang Lao said: "Who is this little friend? ”

Qin Zhenhua, who is in his twenties, was actually called a child in front of this old-timer, which made him a little speechless.

"Huang Lao, my name is Qin Zhenhua, is your equipment here a low-pressure hot isostatic vacuum sintering furnace?" Qin Zhenhua asked.

As soon as these words came out, Huang Lao's eyes suddenly widened, and he looked at him fixedly, with incredulity in his eyes: "How do you know?" Are you also an expert in powder metallurgy? ”

This set of devices, that is the latest masterpiece of Huang Lao's research, even if it is put in the world, it is also at the leading level in the eighties, but I don't know, how can Qin Zhenhua see it at once?

Powder metallurgy requires a special sintering furnace, however, powder metallurgy in the process of smelting, it is still divided into a lot of steps, among them, different steps, the way required is also different, when using high-frequency induction to melt, it is necessary to be in a vacuum state, saving some oxidation reactions with air, and after melting, if you want to sinter, you also need to pressurize, and the pressure is divided into low pressure and high pressure, different steps, quite cumbersome.

In order to improve production efficiency and reduce the loss of intermediate steps, Huang Lao creatively concentrated such as dewaxing, sintering, hot isostatic pressing, etc. in a set of equipment, which is the most advanced device of the State Key Laboratory of Powder Metallurgy.

Who knows, it was actually seen by the young man in front of him at once.