"Yan Xuan!" Lu Wenjun was like an unbeatable Xiaoqiang, and once again appeared in Yan Xuan's sight.

Reluctantly handed the book to his left hand, Yan Juan squeezed out a shallow smile: "Senior, what a coincidence." ”

If you talk about the weather or something, it's probably a way to get along. Yan Juan felt that it was enough to have such a general friendship with him. As for the ambiguity between him and Chen Xiaorong, she didn't want to care anymore.

The only thing Yan Juan couldn't understand was that if Chen Xiaorong had told her frankly at the beginning, she would not have any scruples about her friend's feelings and marry into the Lu family like this! But these two people have been keeping her secretive and keeping her in the dark.

"It's not a coincidence, I'm waiting for you!" Lu Wenjun is dressed in white casual clothes, which is indeed worthy of the words "Yushu Linfeng". The handsome and golden man has long been spoiled by the women, so much so that when he met Yan Xuan, who did not pretend to be sexual, he suddenly felt that his eyes lit up, and he had to catch up!

"Senior...... Is there something wrong? ”

"Our blue diamond will start sawing today, would you like to see it for yourself? This is a rare opportunity that will help you design jewelry in the future. Lu Wenjun is clearly doing what he likes, maybe this is the only bait that can impress Yan Juan.

"Today?" Yan Wan's heart pounded. That good quality blue diamond is about to be sawn open?

"Yes, you only have three classes in the morning, I'll pick you up later." Lu Wenjun didn't even wait for an answer, he turned around and left in a chic manner.

He calculated, Yan Juan had no way to refuse such a temptation.

That's a beautiful diamond!

Therefore, when Yan Juan was waiting at the door of the classroom, Lu Wenjun couldn't help but smile proudly.

"Do you want to call Xiaorong?" Yan Wan asked. Unlike in her previous life, she didn't want to be alone with Lu Wenjun at all now. Although she doesn't have a good impression of Chen Xiaorong, and even died in the hands of Chen Xiaorong in her previous life, it's good to have someone who should be a light bulb now.

"No need, where can an outsider see our Lu family's method of dealing with diamonds?" Lu Wenjun shook his head without hesitation, and said Yan Juan into the car with a gentlemanly demeanor.

"I ...... It's an outsider, too! Yan Wan was stunned.

"What are you...... Exception. Lu Wenjun originally wanted to use this to clarify his plans, but after hesitating for a while, he still gave up this tempting idea.

"Don't you need chiseling techniques? In this way, the utilization rate of the drill billet will be higher, and the loss will be less, and the labor will be saved. Yan Juan asked casually.

"Where are the good chiselers? The risk of splitting a diamond is too great, and if one is not good, the whole diamond will fall apart. Although the weight loss of sawing can reach 3% and the cost increases due to the need for diamond abrasives, it is much less technically difficult and less risky. Not everyone has the skill and courage of Jo Aschar. ”

Aschar is a famous diamond craftsman who once shocked the world by successfully splitting the world's largest diamond, the Cullinan, in half.

"Then I won't see the scene of being opened today." Yan Juan was disappointed.

"Yes, I'll keep watch with you." Lu Wenjun immediately interfaced.

"No, I'm going to work in the afternoon."

"What's the meaning of that class of yours? It's not a big deal to quit your job. Lu Wenjun said disdainfully.

"You are a son with a net worth of billions, I am not even qualified for Cinderella, this job is my livelihood, where can I be so chic?" Yan Juan smiled faintly, and his expression became alienated again.

"Okay, I'm wrong." Lu Wenjun smiled bitterly, "Now let's go see the saw first, I may be busy until midnight!" ”

Yan Juan nodded, and it was not good to give him a cold look. She has the heart knot of the previous life, and Lu Wenjun doesn't seem to have anything to be sorry for herself in this life, so she barely squeezes out a smile.

When they entered, they saw workers putting the blue diamond on the rig. She was a little nervous in her heart, and immediately recalled An's gaze, and she didn't even know that Lu Wenjun took her hand.

Lu Wenjun was overjoyed and began to introduce: "The traditional sawing method is to use a mechanized circular saw to cut and drill. But this approach has a fatal heel. ”

"What weakness?" Yan Juan asked subconsciously.

"It is not possible to accurately control the feed speed and pressure of the saw drill, so it often causes deflection or chipping. Now with computer numerical control technology, this problem is solved. You see, this is the saw blade, and its pressure on the drill billet is automatically controlled and adjusted by the computer according to the program. Therefore, diamonds with a more regular shape and better quality are generally divided by sawing. ”

Yan Wan nodded: "It will take longer to saw?" ”

"Yes, depending on the size of the diamond and the difficulty of processing, it usually takes a few hours to more than 20 hours. This blue diamond, preliminary estimates are that it will take at least ten hours. ”

"Can I come back after class?" Yan Xuan's tone was a little earnest.

"Of course, I'll pick you up." Lu Wenjun was overjoyed and immediately interfaced.

Yan Juan saw that the workers were gluing the drill blank to the pole of the saw machine, and couldn't help but stick out his head to look: "What is this binder made of?" ”

Lu Wenjun can't answer this technical question.

"Medical plaster and glue, a one-to-one ratio." An engineer who was monitoring next to him replied, and glanced at Yan Juan curiously.

It can be seen that this girl should be Lu Wenjun's new prey. Just come to the sawing workshop, but it can be regarded as the first one. Ordinary girls, who has the patience to watch this kind of technical work?

Yan Juan thanked softly, and watched as the worker carefully embedded the sticky rod into the saw, and the other sticky rod used to hold it tightly placed against it.

"What is this?" Yan Juan continued to study diligently and inquire.

"This is the shaft of the saw blade and needs to be fixed. The long arm that holds the sticky bar can be moved and adjusted. The engineer saw Lu Wenjun's gaze sweeping over and replied gently.

"Is the pressure of the diamond on the saw blade regulated by the weight of this spherical weight?" Yan Wan asked.

"Not bad."

"Everyone has always said that only diamonds can sawn diamonds, and these abrasives should be diamond powder, right? But diamond sawing technology can't be done in any direction, right? Is it to follow a certain texture or direction? Yan Juan gave full play to his diligent and inquisitive nature, and continued to ask for advice with an open mind.

The engineer looked at her sincere expression in amazement, maybe it was for Lu Wenjun's face, maybe it was a good teacher, and he quickly answered: "Yes, this is due to the fact that the internal crystal structure of the diamond has a different hardness direction, so it cannot be sawed parallel to the cleavage direction." Because the abrasives used for cutting have different maximum hardness oriented particles, there will always be a chance that the direction of the maximum hardness of the particles will meet the softer direction of the ground diamond and thus be sawn. ”

At this time, Yan Juan thought of An's split, the old man, the inconspicuous chopping knife, was so gorgeous that she didn't get tired of it after recalling it hundreds of times.

PS: Thank you very much for the purple kite beggar, cod, sasa_min, and the source of '~ Xing Xue and the five relatives of the evil little three, and the relatives are not the first time to reward, and the little pig is really moved. sasa_min and the sin junior sent out a big red envelope of 588 at the same time, thank you so much! Bow in thanks, inexplicably grateful. I would also like to thank the heavenly DE snow for sending evaluation votes, as well as all the people who voted, collected, and read this book! There is another chapter update in the evening, please continue to support Little Pig and support "Reborn Pearl Treasure Wife", thank you!