Chapter 67 Production Test
Chapter 67 Production Test
When Vice Mayor Huang first heard the news, he almost thought he had heard it wrong.
”They have only been here for more than a month, and they have built a single crystal furnace so quickly?”
”It should be built, but whether it can successfully produce qualified silicon rods depends on the specific test results. They have now submitted experimental reporting applications to the power supply, fire protection and other departments.”
”Then what are you waiting for? Let all departments get moving and fully cooperate with their experimental tests!”
”Okay, I’ll go down and arrange it right away.”
”Well… wait a minute, there is one more thing I want to emphasize. Although scientific research is a race against time, we must ensure safety when racing against time. It doesn’t matter if we fail once or twice, but we must not cause any accidents!”
”Well, Mayor Huang, don’t worry, we know what we are doing. We would rather let them postpone the test, but we will definitely ensure safety.”
Vice Mayor Huang nodded, feeling a little nervous.
He couldn’t help but stand up, walk to the window, look at the twinkling lights outside, and look forward to tomorrow’s experimental results…
After all, he personally invited Dahan Silicon Industry.
If they can produce results, it will not only make him proud, but also be a long-term benefit to the development of Steel City.
No words were spoken that night.
Early the next morning, the employees of Dahan Silicon Industry came to the company early.
At this time, Dahan Silicon Industry was completely surrounded by the cordon. Although Kang Chi had repeatedly emphasized yesterday that this production test was completely within the safe and controllable range, there was no need to make such a big fuss.
But the leaders of Steel City also encountered this kind of test for the first time. Especially after hearing that the maximum power of a single crystal furnace was as high as 600KW, they did not dare to be careless at all and arranged everything that could be arranged.
You should know that this 600KW is not used for energy storage and charging, but for real-time energy release. This energy is equivalent to more than 80 households, and at the same time, it pulls the household appliances to the maximum power that the wires can bear. More importantly, all of its energy is basically concentrated on a stick as thick as two fingers, which shows how terrifying its energy is.
Therefore, nearly ten traffic police are near the cordon to evacuate foreign vehicles and pedestrians.
Within the cordon, three fire trucks and a car from the power supply bureau were also parked quietly.
A little further away, there was even an ambulance.
Looking at this scene, those who didn’t know would think it was some kind of exercise…
In the test workshop, Kang Chi explained to the leaders who came to watch the test experiment in person: “In fact, 600Kw is only the theoretical maximum power designed. Under normal operating speed, its power is only about 300Kw.”
”That’s also terrifying. After all, it’s just a smelting rod as thick as a finger.”
Deputy Mayor Huang looked at the unprepossessing thing in front of him and couldn’t imagine that it could consume so much power.
Xie Chenggong asked curiously, “Mr. Kang just mentioned the normal operating speed… Are there other operating speeds?”
“Yes.” Kang Chi nodded, “The biggest feature of the floating belt method is to purify single crystal silicon through heating rods and cooling rods.”
”If the power is increased, the movement speed of the two rods will be faster, increasing the melting speed. However, just like a computer CPU that is overclocked for a long time is prone to burnout, a single crystal furnace is also prone to failure if it is operated at high load for a long time.”
”But we have designed an automatic power-off system. Once an abnormal temperature is found, the equipment will automatically stop running, which can ensure production safety to the greatest extent.”
The leaders nodded after hearing this and felt relieved.
As the preparations before the test were completed, the safety officer began to clean up the site, and everyone could only stand 20 meters away from the single crystal furnace and watch from a distance.
”The equipment has been started, and the test program has started…” As the engineers pressed the button, the single crystal furnace, which looks like a large oil tank, finally started to run.
Through the quartz glass window on the shell of the single crystal furnace, you can clearly see that a ring-shaped heating rod inside the single crystal furnace is gradually heating up and turning red.
Although the cooling rod below does not show any color change, the actual temperature has reached 50 degrees below zero. However, because most of the air in the furnace has been pumped out in advance, it is in a semi-vacuum state, so there is no obvious white frost on the surface.
In these twoIn the middle of the circle of rods, there stands a black polysilicon rod.
This is the raw material produced by the local silicon refining enterprises in Gangcheng: polysilicon rod.
Its material is a bit like the old coal balls, with pits and bumps on the surface. This is because its internal crystal structure is very uneven.
The function of the single crystal furnace is to remelt it into single crystal silicon with continuous lattice and stable electrical properties, while removing excess impurities.
As the temperature of the heating rod rises, the polysilicon rod in the middle finally begins to turn red and then melts.
However, the heating rod and the cooling rod cooperate with each other to control the temperature perfectly, and the polysilicon is always firmly controlled at the critical point between solid and liquid, so that it does not flow down.
While melting, the two rods are also moving slowly.
After a few minutes, the bottom area of the polysilicon rod has turned grayish white after cooling. The material density is much higher at a glance, and the texture is actually very similar to steel.
At this time, it has completed the transformation from polycrystalline silicon to monocrystalline silicon.
Kang Chi was relieved to see this scene.
During these few minutes, everyone held their breath and stared at the heating rod. Seeing that Kang Chi seemed to relax, Deputy Mayor Huang finally couldn’t help asking: “Mr. Kang, is this experiment successful?”
Kang Chi shook his head: “It can only be considered a preliminary success.”
”We have to wait for an hour to see the details. During this period, the single crystal furnace will use different temperatures for multiple smelting according to the different impurity components in the silicon rod.”
”After the silicon rod comes out, various parameter tests must be carried out. If the results are up to standard, the experiment will be truly successful.”
Deputy Mayor Huang nodded as if he understood.
“Leaders, you can sit down and wait. If you have something to do, there is no need to waste time here. This test process is actually quite boring. It’s not an airplane or a cannon, so it’s not very entertaining…”
After listening to Kang Chi’s words, everyone couldn’t help but laugh, and the tense atmosphere was slightly relieved.
”Although Mr. Kang’s equipment is not as entertaining as airplanes and cannons, its power is no less than theirs.”
After sighing, Deputy Mayor Huang smiled and said,
”I didn’t expect Mr. Kang to have a sense of humor. I felt that you were a pure science and engineering man before. You often talked about various professional terms that I couldn’t understand, and I couldn’t help but often get distracted…”
”Haha, really? I will pay attention to it in the future.”
”Well, since we are in Steel City, we are all friends. There is no need to be so reserved all the time.”
Deputy Mayor Huang patted Kang Chi on the shoulder, and then sat on the chair with everyone, patiently waiting for the test results…
(End of this chapter)