The two whispered as they walked, and Ono Oura gradually calmed down. After thinking about it carefully, I felt that what Shinsuke Sato said was quite likely. Don't look at the barium coating technique after 20 years, it is quite widespread, but this era has just come out of the laboratory. Barium hydroxide octahydrate is a coating material that has not been replaced by new technology for 20 years, which in itself shows its value.

Under the premise of in-depth research on monocrystalline silicon crystallization and quartz crystals, and without the analysis of a large number of production data of monocrystalline furnaces, how to study the coating without even having the test conditions? Even without experience in the production of single crystal furnaces, the problems that will occur in the use of quartz crucibles cannot be found, and there is no way to grasp the direction of technical techniques.

Zhou Shuo took Shinsuke Sato and Ono Oura to the monocrystalline silicon production workshop, and Yao Dao greeted him from afar.

Principal Zhou ...... Hey? Isn't this Mr. Ono? Yao Dao looked at the two people who followed Zhou Shuo in surprise.

He introduced Shinsuke Sato and Yao Dao, and then said to Yao Dao: "Toshiba Ceramics has sent a notice that if you use a self-produced quartz crucible, you will no longer provide a warranty for a single crystal furnace. Yao Gong, do you have the confidence that our own technical team can complete the maintenance of the single crystal furnace? ”

"Well, this one!" Yao Dao gritted his teeth and decided to tell the truth. He said with some hesitation: "Simple maintenance is no problem, but it may take some time to understand the mechanical part of the single crystal furnace." ”

"Is there a plan?" Zhou Shuo didn't care, and asked with a nod as he walked.

Seeing that he didn't mean to be picky, Yao Dao also exhaled deeply and said relaxedly: "Before May." Ensure that the Japanese mechanical part of the technology is thoroughly understood, and strive to achieve the self-production of the whole furnace in the first half of the year. ”

Said here. He was still a little disappointed and said: "However, the Japanese skills are really good, and after in-depth research, I found that the domestic level of many parts cannot keep up." It can only continue to be imported. Fortunately, these are ordinary mechanical products, and there are no restrictions on exports internationally. ”

Zhou Shuo was not worried, Ha Luha laughed, the level of domestic machinery manufacturing is the biggest improvement in the next 20 years, and the world factory is in vain? He patted Yao Dao on the shoulder and said, "Don't worry, I believe that China will soon be able to produce the qualified products we need." ”

Yao Dao didn't have as much confidence as him, but he also nodded: "I hope so." ”

Not to mention how Shinsuke Sato and Ono Oura were nervous, the four of them changed into dust suits at the door of the workshop and rushed in.

Ten monocrystalline furnaces are lined up, although they are running at full power. The workshop didn't feel stuffy at all. This is due to the fact that the monocrystalline furnace must be sealed when producing monocrystalline silicon. The largest source of impurities in the production of monocrystalline silicon is oxygen.

In production, the furnace is first pumped into a vacuum, and then filled with argon and a trace amount of nitrogen. During the melting process, the size and path of the gas flow are carefully designed to ensure that the formation of the thermal field in the furnace and the introduction of oxygen into the feed are not affected. Most of the impurity oxygen comes from the quartz crucible, and the role of the barium coating is at high temperatures. Barium hydroxide forms a dense layer of barium silicate. This barium silicate layer increases the hardness of the quartz crucible and prevents the oxygen it contains from entering the monocrystalline silicon.

It is important to know that the purity requirements of electronic grade monocrystalline silicon are very high, and even a very small amount of oxygen entering the quartz crucible will greatly reduce the quality of monocrystalline silicon.

Shinsuke Sato and Ono Oura are both veteran employees of Toshiba Ceramics. Naturally, I also know how many technical difficulties there are. Master the formula of barium coating, but also master the spraying method. The spraying process is not up to standard, and the barium hydroxide octahydrate is unevenly distributed. In the end, there is still no qualified product.

Yao Dao looked up at the clock hanging on the wall, and whispered in Zhou Shuo's ear, "There are ten more minutes." The first furnace of the self-produced quartz crucible was completed. Principal Zhou, look, did you invite the two devils out of the city? ”

Zhou Shuo glanced at the two people who were scratching their ears and cheeks. Shaking his head slightly, he said, "I still have useful for these two people, not only don't hide them, but we also have to let him understand them." ”

Yao Dao was stunned, and said unknowingly: "It's not easy for us to develop our technique, don't you need to keep the progress secret?" ”

"It's all something that the Japanese already have in their hands, so keep it secret." Zhou Shuo sighed and said: "It's the Japanese side, and there are still a lot of skills that we don't lack." ”

"Okay, then." Yao Dao nodded reluctantly, he has worked in state-owned enterprises all his life, no matter whether it is useful or not, he has a strong sense of confidentiality. It is inevitable that he will not be a little uncomfortable.

Zhou Shuo walked to the monocrystalline furnace that was about to be opened, and beckoned to Shinsuke Sato: "Sato-san, Ono-san, this is the monocrystalline furnace that uses our self-produced quartz crucible, you two might as well come and see how our skills are?" ”

Shinsuke Sato and Ono Oura glanced at each other, and Zhou Shuo must be tired of being so positive. A sure hit is to deceive us, and when the time comes, take the opportunity to propose the idea of buying Toshiba's ceramic coating technology. The two of them sneered in their hearts and paid attention, they must let the Chinese know what is called the gap in technology, and then humiliate them fiercely after debunking this scam.

"How embarrassing is that!" Sato Shinsuke bowed, and without waiting for Zhou Shuo to be polite, he hurriedly said: "Then make trouble for Zhou Sang!" Ono-san, why don't you come and see Zhou Sang's 'advanced level'! ”

Shinsuke Sato said heavily on the four words "advanced techniques".

"Hey!" Ono Oura cheered up and first checked the readings of the data in the monocrystalline furnace, slightly surprised. The data from these instruments shows that the process of single crystal lifting is normal, as if Toshiba Ceramics had been used for its own products.

"Data fraud? Or is it simply our product that is used? Ono Oura was puzzled, turned his head to look at Zhou Shuo and said, "Zhou Sang, can I check the operating status of the single crystal furnace?" ”

Zhou Shuo smiled slightly, nodded and said, "Xiao Ye-san, please take care of yourself, as long as it doesn't affect the crystal." ”

"Then I'll be rude!" Ono Oura detoured to the back of the device and carefully opened the back panel of the device. The single crystal furnace is still in operation, if it weren't for his daring, he really wouldn't dare to check the machine at this time.

He took out a testing instrument from the equipment he was carrying, and attached it to a connector on the back of the console of the single crystal furnace. Then the instrument is operated and the operating status of the single crystal furnace is read.

Yao Dao was a little surprised, and asked Zhou Shuo in a low voice: "Principal Zhou, what kind of equipment is this?" ”

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

Ono Oura fiddled with the equipment for a while, closed the back panel and stood up in some surprise, shaking his head slightly at Shinsuke Sato.

Shinsuke Sato Wataru came over and pretended to look at it, and asked Ono Oura in a low voice, "Why, the equipment hasn't been moved?" ”

"Nope." Ono Oura shook his head in disappointment, the electronic testing equipment was well connected and the power was normal. Without opening the case, you can only make guesses that the data is normal.

"Hmm." Shinsuke Sato asked, "Could it be that the Chinese have done something with electronic devices?" ”

"Impossible!" Ono Oura affirmed, "The electronic inspection equipment is our own product, and it is impossible to change it without a code. ”

"That is, the Chinese are still using our crucibles, or want to work on monocrystalline silicon testing!" Shinsuke Sato swore and said, "You must expose their conspiracy, Ono-kun, please!" ”

"Hey!" Ono Oura nodded and said, "Don't worry, Sato-san, I will definitely do my best!" ”

Ono Oura couldn't help but care, at this time, the two of them were already tied to the same boat.

Time flies, the prompt light of the monocrystalline furnace turns from red to green, and the single-crystal lifting cooling has ended. Yao Dao and a few workers were about to come up to operate, but they were stopped by Shinsuke Sato. He muttered in Japanese, then pointed to Ono Oura.

Yao Dao looked back at Zhou Shuo, only to find that he actually nodded to Sato. Then he asked Yao Dao and the workers to get out of the way, and just pushed the transport cart to the designated position.

Zhou Shuo and Yao Dao stood not far away, holding their heads high, and watched Ono Oura start the crystal operation with a faint gaze.

The furnace was already at a normal temperature, and Ono Oura opened the crystal opening. The monocrystalline silicon ingots slowly slid from the crystal splice frame onto the transport trolley.

Ono Oura couldn't wait to open the feeding port again, and the milky white quartz crucible lay quietly in the single crystal furnace. Just one glance darkened his face.

"Ono-san, how's it going? Are they using our products? "Shinsuke Sato also poked his head over, but he was an administrator, and he was not good at technical skills. What the outcome will be, we have to listen to Ono's opinion.

"Not our quartz crucible." Ono Oura said bitterly: "The Chinese use concave bottom crucibles, while our Toshiba ceramics produce flat-bottomed crucibles. Although there are more leftovers in the concave bottom crucible, the spraying technique is less demanding, and we have long since stopped using it. ”

"Don't be afraid." Shinsuke Sato comforted him and said, "There must be a problem with the quality of the monocrystalline silicon produced, and if there is no coating or the coating technology is not up to standard, it can easily lead to a huge fluctuation in the crystallization rate." As long as the resistivity of the monocrystalline silicon ingot is measured, everything will be like a white one! Ono-kun, now is not the time to be depressed! ”

"That's what you said!" Ono Oura cheered up and replied earnestly, "I'll check the resistivity of the monocrystalline silicon ingot!" ”

He was about to check the performance of monocrystalline silicon on the spot, but Zhou Shuo stretched out his hand to stop him and asked, "Ono San, if the crystalline quality is good, have you thought about your future?" (To be continued......)

PS: Although the first order is not eight hundred, the author will still work hard for three more! Thank you for your support, thank you very much!