The finer the powder, the easier it is to combine together during sintering to form a dense structure, and even the increase in surface area can reduce the sintering temperature.
It is actually not a fantasy to reach the nano level. In another twenty years, this nanotechnology will be overwhelming. At that time, all walks of life, whether it is useful or not, will promote what they are using.
Nanotechnology, regardless of whether the person actually knows what nanotechnology is.
Now, if we propose nanotechnology, most people actually don’t believe it.
Even Mr. Huang frowned.
"If we can study the nanometer level, it will be of great help to our materials science. However, first of all, we need a scanning tunnel microscope. For us, we can only sigh at the moment."
Looking at the Pacific Ocean, sighing that the most advanced technology is on the opposite side. Back then, Mr. Huang also studied in the university opposite. It was precisely because he had studied materials science, so when the country later wanted high powder metallurgy technology.
That made him the leader.
Now, when it comes to this nano-level, Mr. Huang knows what it means, but now the basics are not available.
"Yes, we may not be able to achieve it now, but as long as we work hard, we can definitely achieve it." Qin Zhenhua said: "Now, our country is working hard to develop the economy. When our economic strength is available, then our
Industrial technology will definitely develop accordingly.”
"You kid are really unreal." Huang Lao said with a smile: "The data you put forward is to point us with a goal of ten or twenty years in."
When Mr. Huang said this, everyone laughed, and Mr. Zhu also laughed. Only people like Qin Zhenhua dared to speak loudly in front of Mr. Huang.
"By the way, what's the need for the thermal insulation shear performance you just mentioned?"
In the past, when people worked on materials, few people valued this performance because there was no target requirement. Qin Zhenhua proposed this effect, what was the purpose of?
"This is useful to us." Qin Zhenhua said: "We have now noticed that the shells of foreign tank guns have matured the depleted uranium materials in the process of finding new materials. This material is very suitable for armor-piercing bombs.
Because, during the process of penetrating the armor, other materials become more and more blunt, while depleted uranium materials become more and more sharp. This is called the self-sharp effect of depleted uranium materials. Huang Lao, this senior brother, you should
Can you know why I need this performance requirement?"
Armor-piercing bombs rely on the slender bullet body to pierce armor. Among them, the tip is the most important. The sharper the more it is, the easier it is to pierce it into.
This is the characteristic of depleted uranium bomb. When it penetrates, the thermally adiabatic shear expansion performance is small, so it is easy to produce thermally adiabatic shear effect on its tip. This shear is like sharpening a knife, putting its tip
, cut off layer by layer, constantly revealing the new tip.
Well, it's like an utility knife. If the knife is no longer sharp, it will smash the blade down, and the one below will become sharp again.
In this way, while constantly piercing the armor, the head was always sharp.
The others won't work, the more you drill in, the more dull it will be.
Although the difference caused by this will not be particularly large, as long as it can increase the depth of armor piercing of even one millimeter, it is worth trying.
There are also depleted uranium alloys in China. Research was conducted in the 1960s and now there are also results. However, because it is radioactive, Qin Zhenhua has never considered depleted uranium armor-piercing bombs as a key aspect to study, while on the other hand, the motherland's
Tungsten ore is particularly rich, so it is natural to use rich tungsten alloys as their armor-piercing bombs. We will strive to improve the technology of tungsten alloys and achieve greater penetration depth!
Therefore, he proposed this idea. Since depleted uranium alloys can be self-sharpened, does our tungsten alloy also have the prospect of self-sharpened?
"This is not easy." said Mr. Huang.
"Yes, of course it's not easy. I think, in addition to using more precise powder to make it during the sintering process, we also need to strengthen and rotate forging, twist deformation, hydrostatic extrusion, etc. by adding trace elements alloying to strengthen and rotate forging, twisting and deformation, hydrostatic extrusion, etc.
At the same time, we can use computers to conduct mechanism and numerical simulation calculations to study this method. Of course, we also need to continue to study technology, and perhaps in the future, we will be able to have special equipment to manufacture machinery.
Alloy preparation of nanotungsten alloy composite powder, temperature press forming and preoxidation activation sintering and other special preparations.”
Cheng Wang, who was standing beside him, had his eyes falling out. This guy was so arrogant. Speaking of which, do you know how difficult it would be to do it in detail?
It's really hard to understand.
Qin Zhenhua promoted all his theories. In fact, these ideas have always existed in his mind. The progress of materials determines the development of the entire industrial foundation. His own imitation of German diesel engines failed, and materials are a big problem. Now
Since I have met this expert in materials, of course I have to put forward my own ideas.
"As for the research funding issue," Qin Zhenhua thought more: "Our machine factory can provide part of it, and at the same time, the army can definitely provide part of it. I know that this thing is a money-burning thing."
"What? You can provide funds, you are so angry." Cheng Wang said.
The young man in front of him looks one or two years younger than Cheng Wang. Cheng Wang absolutely doesn't believe that Qin Zhenhua has this ability. Speaking of which, he really has this ability? Do you know how to develop such things?
How much does it cost to conduct an experiment? Just the electricity bill will cost thousands of dollars!
Qin Zhenhua touched his nose: "Yes, it just can't be too much. I invest more than 100,000 yuan a year. I think I can still make the decision."
With the current net profit of a machine factory, a tank can make millions, so it is natural to invest money in research and development.
After Qin Zhenhua finished speaking, Zhu Lao, who was standing beside him, nodded: "I think it's okay. This kid has money on hand. Lao Huang, I've found a rich man for you. How much money can be made depends on your ability.
”
If Mr. Zhu said the same thing, it would be different.
"By the way, what is the performance of the tungsten alloy rod you just burned? Can I take it back and process it into an armor-piercing bomb? If the depth is improved, then I can fool the army and let the army allocate funds to you."
Qin Zhenhua said.
In the past, increasing the depth of armor piercing was mainly based on structural changes, but now, continuing to increase the depth can only be based on the material.
"It improves performance by 10% compared to the existing ones." Huang Lao said: "Children, don't forget what you said today."