The two of them whispered while walking, and Oura Ono gradually calmed down. After careful consideration, they felt that what Nobusuke Sato said was quite possible. Although barium coating technology was quite rampant twenty years later, it was just now that this era had just left the laboratory. The coating material of barium hydroxide, octahydrate, has not been replaced by new technologies after 20 years, which itself shows its value.

Without in-depth research on single-crystal silicon crystals and quartz crystals, and without analyzing a large amount of production data of single-crystal furnaces, how can I study the coating without even having the test conditions? Even without the experience in single-crystal furnace production, I cannot find any problems that will arise during use of quartz crucibles, and I cannot even master the technical direction. How can I talk about technical breakthroughs?

Zhou Shuo took Sato Nobusuke and Ono Oura to the monocrystalline silicon production workshop, and Yao Dao came over from afar.

"Principal Zhou... Huh? Isn't this Mr. Ono?" Yao Dao looked at the two people following Zhou Shuo in surprise.

He introduced Sato Nobusuke and Yao Dao, and then said to Yao Dao: "Toshiba Ceramics sent a notice that if a self-produced quartz crucible is used, the single crystal furnace will no longer be provided with a warranty. Yao, see if our own technical team is confident that we can complete the maintenance of the single crystal furnace?"

"That's it!" Yao Dao gritted his teeth and decided to tell the truth. He said hesitantly: "There is no problem with simple maintenance, but it may take some time to fully understand the mechanical part of the single crystal furnace."

"Are there any plans?" Zhou Shuo disregarded and nodded as he walked.

Seeing that he had no intention of being picky, Yao Dao also took a deep breath and said relaxedly: "Before May, we must ensure that we can fully understand some of the Japanese mechanical technology and strive to achieve self-production of the entire furnace in the first half of the year."

Speaking of this, he said with some disappointment: "But the Japanese's technology is indeed good. After in-depth research, I found that many parts are not yet able to keep up with the domestic level and can only continue to import. Fortunately, these are ordinary mechanical products, and there is no restriction on exports in the international community."

Zhou Shuo laughed without any worries. The domestic level of machinery manufacturing has made the greatest progress in the next twenty years. Is the world's factory so famous? He patted Yao Dao on the shoulder and said, "Don't worry, I believe that the country will soon be able to produce the qualified products we need."

Yao Dao did not have as much confidence as he did, but he nodded and said, "I hope so."

Not to mention how uneasy Sato Nobusuke and Ono Oura were so nervous that the four of them changed into dustproof suits at the door of the workshop and entered one after another.

Ten single crystal furnaces are lined up in a row, although they are running at full power. The workshop does not feel stuffy at all. This is because the single crystal furnace must be in a sealed state when producing single crystal silicon. The biggest source of impurities for single crystal silicon production is oxygen.

In production, the furnace must be vacuumed and then filled with argon and trace nitrogen. During the smelting process, the size and flow diameter of the gas flow must be strictly designed to ensure that it will not affect the formation of the heat field in the furnace and bring oxygen into the feeding material. Most of the impurities are from quartz crucibles. The function of the barium coating is that barium hydroxide will form a dense barium silicate layer at high temperatures. This barium silicate layer increases the hardness of the quartz crucible and prevents the oxygen it contains from entering the single crystal silicon.

It should be noted that the purity requirements of electronic-grade single crystal silicon are very high. Even if the extremely small amount of oxygen enters the quartz crucible, it will greatly reduce the quality of single crystal silicon.

Sato Nobusuke and Ono Oura are both senior employees of Toshiba Ceramics. Naturally, they also know how many technical difficulties there are. After mastering the formula of barium coating, they also need to master the spraying method. The spraying process is not up to standard, and the distribution of barium hydroxide in the octa-water is uneven, and they still cannot obtain qualified products in the end.

Yao Dao looked up at the clock hanging on the wall, and whispered in Zhou Shuo's ear: "In another ten minutes, the first furnace of the self-produced quartz crucible will be completed. Principal Zhou, see, have you invited the two Japanese out?"

Zhou Shuo secretly glanced at the two people who were scratching their ears and shook their heads slightly. He said, "I still have the help of these two people. Not only should I hide them, we have to let him see it clearly."

Yao Dao was stunned for a moment and said inexplicably: "It is not easy for our technology to develop, so don't you need to keep the progress confidential?"

"It's all things that the Japanese have mastered, so what's the secret?" Zhou Shuo sighed and said, "The serious ones are from the Japanese, and there are still many technologies that we lack."

"Then. OK." Yao Dao nodded reluctantly. He worked in a state-owned enterprise all his life. No matter whether it is useful or not, he has a strong sense of confidentiality. He is inevitably a little uncomfortable with his arrangements.

Zhou Shuo walked to the single crystal furnace that was about to be opened, waved to Sato Nobusuke and the others and said, "Sato San, Ono San, this is the single crystal furnace that uses our own quartz crucible. You may as well see how our technology is?"

Sato Nobusuke and Ono Oura looked at each other, thinking that there must be something wrong with Zhou Shuo's activeness. The one who is sure to be tricked us over and take the opportunity to propose the idea of ​​purchasing Toshiba ceramic coating technology. The two of them sneered in their hearts and decided to pay attention, and they must let the Chinese know what the technical gap is. After exposing this scam, they will humiliate them.

"How can you be so embarrassed!" Sato Nobusuke bowed and said quickly without waiting for Zhou Shuo to be polite: "Then I'll cause trouble for Zhou Sang! Ono Sang, come and see Zhou Sang and the others' 'advanced level'!"

Nobusuke Sato said heavily on the four words "advanced technology".

"Hi!" Ono Oura cheered up and first checked the readings of the data in the single crystal furnace, and was slightly surprised. The data of these instruments showed that the single crystal lifting process was normal, just like using Toshiba Ceramics' own products.

"Does the data be fake? Or is it just our product used?" Ono Oura was puzzled and turned to look at Zhou Shuo and said, "Zhou Sang, can I check the operating status of the single crystal furnace?"

Zhou Shuo smiled slightly and nodded, "Onosang please do whatever you want, as long as it doesn't affect the crystallization."

"Then I'm rude!" Ono Oura walked behind the equipment and carefully opened the back plate of the equipment. The single crystal furnace was still in operation. If he hadn't been skilled and brave, he wouldn't dare to check the machine at this time.

He took out a detection instrument from the equipment he carried with him and connected it to an interface on the back of the single crystal furnace console. Then he operated the instrument and began to read the operating status of the single crystal furnace.

Yao Dao was a little surprised and asked Zhou Shuo in a low voice: "Principal Zhou, what equipment is this for the Japanese?"

"Electronic maintenance." Zhou Shuo also looked at Ono Oura's operation with great interest and said: "Using electronic instruments to monitor the operating status of the equipment can accurately determine the cause of equipment failure, achieve non-destructive maintenance and improve maintenance efficiency."

Ono Oura fiddled with the equipment for a while, closed the back plate in surprise, stood up, and shook his head slightly at Sato Nobusuke.

Sato Nobusuke came over and looked at it in a pretentious manner, and asked Ono Oura in a low voice: "Why, the equipment has not been passive?"

"No." Ono Oura shook his head in disappointment. The electronic detection equipment is intact and the degree is normal. Without the case being turned on, you can only make normal guesses about the data.

"Yes." Sato Nobusuke asked: "Can it be that the Chinese people tampered with electronic devices?"

"Impossible!" Ono Oura said affirmatively: "Electronic detection equipment is our own product, and it is impossible to change without code."

"That's why the Chinese are still using our crucibles, or want to tamper with monocrystalline silicon detection!" Sato Nobusuke said confidently: "We must expose their conspiracy, Ono Jun please!"

"Hi!" Ono Oura nodded and said, "Don't worry, Sato San, I will do my best!"

Unable to let Ono Oura be careless. At this time, the two of them had already been tied to a boat.

Time flies, the single crystal furnace's prompt light turns from red to green, and the single crystal lift cooling has ended. Yao Dao and several workers were about to come up to operate, but were stopped by Sato Shinsuke. He said it in Japanese and pointed to Ono Oura.

Yao Dao looked back at Zhou Shuo, but found that he actually nodded to Sato. Then he asked Yao Dao and the workers to move aside, but just pushed the transport cart to the designated position.

Zhou Shuo and Yao Dao stood not far away, holding their heads and chests up, staring faintly at Ono Oura and began to emerge.

The furnace was already at normal temperature, and Oo Oura opened the crystal outlet. The single crystal ingot that can be seen from the crystal mount slowly slid from the crystal mount to the transport trolley.

Ono Oura couldn't wait to open the feeding port again, and the milky white quartz crucible was lying quietly in the single crystal furnace. With a glance at him, his face turned dark.

"How about Ono San? Did they use our products?" Nobusuke Sato also leaned his head over, but he was an administrator and was not very good at technology. What is the result? I still have to listen to Ono Oura's opinion.

"It's not our quartz crucible." Ono Oura said bitterly: "The Chinese use concave bottom crucibles, while the Toshiba Ceramics produce flat crucibles. Although there is more material left in the concave bottom crucible, the spraying technology requirements are lower, and we have long since stopped using it."

"Don't be afraid." Sato Nobusuke comforted him and said: "It must be that there are problems with the quality of the single crystal silicon produced. If there is no coating or the coating technology is not up to standard, it will easily lead to a huge floating crystallization rate. As long as the resistivity of the single crystal silicon ingot is measured, everything will be like Dabai! Onojun, now is not the time to be depressed!"

"You are talking!" Ono Oura cheered up and replied seriously: "I'll check the resistivity of the single crystal silicon ingot!"

He was about to check the performance of single crystal silicon on the spot, but Zhou Shuo reached out to stop him and asked, "Onosan, if the quality of the crystal is good, have you ever thought about your future?"
Chapter completed!