Zhou Chunxiao, 67 years old, is a well-known metal materials expert in China and an academician of the Metal Branch of the School of Materials Science of the Chinese Academy of Sciences.

As a senior expert with an authoritative position in the field of metal materials, Zhou Chunxiao has been paying attention to the development of the domestic metal smelting industry, especially for several high-value non-ferrous metals, every step of its development is in his attention.

In particular, tungsten gold, a metal with its excellent material properties, has become the top priority of his attention in the industrial field.

"Ultra-high purity tungsten gold, can not only be used to manufacture processing tool bits, but also can manufacture advanced engine crankshafts, cylinder barrels, casting a variety of heat-resistant steel, in guns, artillery, rockets, satellites, aircraft, ships and other fields can play a huge role, at present, the domestic purity of more than six nine high-purity tungsten gold, the annual output is less than 100 tons, but the demand is high, often have to pay a high price from foreign imports, some high-purity tungsten gold casting parts, the import price is actually 20,000 US dollars a, It's a lion's mouth! ”

It is in the case of insufficient domestic production capacity and extortion from foreign manufacturers, Zhou Chunxiao can be said to be heartbroken for the development of ultra-high purity tungsten gold, until last month, he suddenly heard a good news from S City.

A private enterprise named "Chongshan Metallurgical Company" has solved the problem of tungsten powder purification and successfully produced a batch of ultra-high purity tungsten gold with a purity of more than six nines!

Hearing the news, Zhou Chunxiao couldn't sleep well at night, and the next morning, he ran to the Ministry of Industry and saw the pieces of ultra-high purity tungsten gold that claimed to be "more than six or nine purity".

took out the metal purity measuring instrument and measured it, and the long string of numbers 9 on the electronic screen almost blinded Zhou Chunxiao's eyes, and he changed a few measuring instruments. After several measurements, the purity of the high-purity tungsten gold was finally displayed as 99.99999987%, which was infinitely close to 100%.

Zhou Chunxiao was instantly excited: "Eight nines, this purity, even in the environment of vacuum weightlessness, may not be able to be refined." How did Shigeyama Metallurgical Company do it? What technology did they use to achieve it? ”

Zhou Chunxiao knows that the melting point of tungsten is the highest among all non-alloy metals, corrosion resistance, high hardness, and the difficulty of purification belongs to the highest level among all metal materials.

That private enterprise, in the end, mastered the purification technology. To achieve such extreme purity?

Zhou Chunxiao personally called Chongshan Company and asked a few words, technology is the foundation of an enterprise's survival, pay attention to strict confidentiality, and I am afraid that competitors will also pierce that layer of window paper, and in turn will defeat you, so Chongshan is very tight. Not even a single detail is revealed.

This aroused the interest of Zhou Chunxiao, who is a very authoritative expert in the Ministry of Industry and the Ministry of Science and Technology. For Chongshan Company's request for financial support, he immediately made a decision, approved 90 million yuan for them, and then put forward the idea of going to Chongshan Company for investigation and inspection together with several material experts.

The good news also reached the military, where it was said that there was a research institute specializing in aircraft engines. I was also very interested in this private enterprise, and sent a few representatives over to join the expert group, planning to go to the private enterprise together.

Shigeyama Metallurgical Company shirked the attitude and found various reasons to postpone the time. Zhou Chunxiao, who was flirtatious, was in an irritable mood, and couldn't wait to fly to S City alone and go to that company to see in person, but fortunately, Chongshan Company finally agreed to the inspection requirements of the expert group, and on October 15, the expert group could go to the inspection.

On the morning of October 15, a passenger plane at the Capital International Airport took off slowly, and an expert group composed of Zhou Chunxiao as the team leader, military representative Luo Jun as the deputy leader, and more than ten expert members, flew for more than two hours, and the group came to S City and went straight to Chongshan Metallurgical Company.

did not accept the accommodation arrangements of the reception staff, in the plant of Chongshan Metallurgical Company, Zhou Chunxiao, Luo Jun and other expert representatives saw a strange-looking machine.

The machine was ten meters tall and oddly shaped, the shell was welded from several steel plates, and even the welds were not polished and smoothed, and when it was activated, all kinds of strange noises came from inside.

In the discharge port of this machine, a magical scene occurred, every ten minutes, there is a round lump of steaming tungsten ingots spit out from the inside, after testing, these tungsten ingots are ultra-high purity tungsten gold with a purity of more than six nines.

"Chairman Lei, what is the name of this machine, what is the specific working principle, can you tell me about it?"

Zhou Chunxiao asked Chairman Lei of Chongshan Metallurgical Company, his face was very curious.

Lu Boyang took the initiative to step forward and explained to the experts: "Dean Zhou, Colonel Luo, experts, don't underestimate this machine, on this machine called 'ultra-high purity tungsten gold purification machine', our engineers and researchers have spent a lot of time and all their ingenuity on the research and development of this machine. The way it works is also quite complicated, first of all......"

Lv Boyang said a lot of nonsense, seemed to understand the theory, tried to use gorgeous words to describe the machine in front of him very tall, and finally said: "A piece of such equipment, running at full capacity, can produce 300 kilograms of ultra-high purity tungsten gold a day, but the cost of one such equipment is more than 200 million, if the state is willing to support, let Chongshan Company assemble a few more such equipment, tungsten gold output, can be doubled!" ”

Zhou Chunxiao was overjoyed, 300 kilograms of ultra-high purity tungsten gold a day had made him overjoyed, and then doubled, not only to meet all the needs of the country, but also to export, to earn those foreigners' money, no less than a turnaround.

Luo Jun, the representative of the army, was moved in his heart and asked Lu Boyang: "Manager Lu, what is the current production cost of these ultra-high purity tungsten gold produced by your company?" ”

Lu Boyang's heart moved, he pondered for a while, and said: "This, because it is still in the early stage of production, the cost of producing ultra-high purity tungsten gold remains high, about 5,000 yuan a kilogram. ”

"What?"

Luo Jun was taken aback, "It's so cheap, Manager Lu, you don't have to sell these tungsten gold to others, sell all of them to the military, we are willing to buy all the tungsten gold produced by your company at a price higher than 5,000 a kilogram!" "The import price of ultra-high purity tungsten gold is more than 20,000 yuan a kilogram, but the initial production cost of Chongshan Metallurgical Company is only 5,000 a kilogram, which undoubtedly illustrates two problems.

First, the production cost of domestic ultra-high purity tungsten gold is much lower than that of foreign countries.

Second, the ultra-high-purity tungsten gold sold to China is more profitable than the Chinese people imagine.

And no matter what the problem is, the military has all covered the tungsten gold produced by Chongshan Company.

After hearing this, Lu Boyang immediately felt regretful, regretted that he did not look up the information in advance, and did not understand what the real price of ultra-high purity tungsten gold was, so he shouted the price of 5,000 yuan a kilogram.

But Lu Boyang still smiled and agreed, damn it, 5000 a kilogram, these tungsten gold spent 1000 a kilogram to buy it was still a little distressed, and now it changes hands, the net profit is four times, is there any better money in the world than this?

"Manager Lu, I'm very interested in this machine, can I take a closer look?" In the expert group, an expert in his fifties asked.

"Well, look, look, just don't touch it." Lu Boyang said magnanimously, the internal structure of this machine is tightly welded by steel plates, and on the outside, unless you have a perspective eye, you can't see anything.

A group of experts were overjoyed, and they all came to this machine, their ears were close to the sound inside, and their eyes were close to see something from the surface, and two experts did not listen to the advice, stroking the shell of this machine from time to time, and kept muttering: "Baby, good baby." ”

However, on the back of this machine, in a relatively hidden location, an expert found a weld that was not tightly welded, revealing a pore the size of a soybean grain, and there was a light flame coming out of the hole, and he curiously leaned his eyes over.

The layout inside took him aback.

A transmission table, a flame gun spraying hydrogen and oxygen flames, and several machines that emit various noises around, on the transmission table are neatly stacked in rows, spit out a piece of tungsten ingots every ten minutes.

"What the hell is this purification equipment?" (To be continued......)