Material Empire

"The one on the left is Miao Lei's father, and the one on the right is Xiang Chief, Xiang Jiyong." Ning silently introduced Qin Hai to the two men who came over.

Qin Hai nodded and ran forward, and said to Miao Funan, "Director Miao, I am a technical school student just assigned this year. I am a foundry student. The labor and labor department sent me to the foundry to do sand blasting. This is me. Letter of introduction. "

He said, Qin Hai handed the letter of introduction from the Labor and Capital Section to Miao Funan. Miao Funan took the introduction letter and calmly exchanged a look with Xiang Jiyong, then said: "Oh, your name is Qin Hai, let me ask you, what have you learned in the technical school?"

Qin Haidao: "I majored in foundry, and I also learned some heat treatment. In addition, I usually like to read books, so I know a little about things related to material properties."

Qin Hai said this in order to leave a gap for himself. He showed his hands in front of Xiao Dongping yesterday. He can judge the quality of steel only by visual inspection and sound recognition. Such a skill cannot be explained by the learning of technical schools. He said that he usually likes to read books, so he learned some extra things so that he can find an excuse for the various knowledge he has.

"Oh? Young man, not too old, not a small breath." Xiang Jiyong interrupted without a miss. He came to the foundry today to find a chance to try out Qin Hai's skills. Now Qin Hai speaks wildly by himself, Xiang Jiyong just seizes this opportunity, so that he can test the Qin Hai without showing up.

"Uncle Xiang, Dad, Qin Hai really has the ability." Miao Lei said to Xiang Jiyong and Miao Funan, "He will do hardening, and it's good."

Xi Miaolei was anxious to recommend Qin Hai to his father and Xiang Jiyong, but unexpectedly hit Xiang Jiyong's arms. Following Miao Lei's words, he asked Qin Hai: "Yes? Do you understand hardening?"

Qi Qinhai felt a bit on the thief boat, Miao Lei talked loudly, and racked him on the fire. He didn't know what the expressionless production section chief was thinking, so he said vaguely: "The chief section chief has stopped me. The hardening process is profound and profound. I dare not say that I fully understand it. But , I have learned a little about the conventional heat treatment of commonly used types of steel, but I do n’t know which one the Chief Xiang asked. "

Xiang Jiyong looked around, and then pointed to a device next to his hand, and asked Qin Hai: "Do you know what this device does?"

Qi Qinhai glanced at him and immediately answered, "I have seen this in school. This is a high-frequency induction hardening furnace, which is used to harden the surface of parts."

"Well, what does surface hardening mean?" Xiang Jiyong asked again.

Such a problem is of course difficult for Qin Hai. He didn't even have a bit of agitation. He answered fluently: "Surface hardening is only hardening the surface layer of the workpiece, and it does not affect the core of the workpiece. Generally, the surface quenching The depth is between 0.5 and 2 mm, and the machining objects are medium carbon steel and medium carbon alloy steel. "

"Why, then, surface hardening? Isn't full hardening better?" Xiang Jiyong continued to ask.

Qin Haidao: "The choice of the depth of quenching depends on the use of the workpiece. Surface hardening is mainly used for parts that work under dynamic loads and friction conditions, such as gears and crankshafts used on agricultural machinery. The performance requirements of these parts are that the surface has a High hardness and abrasion resistance, and the core remains sufficiently plastic and tough. Therefore, quenching must be limited to its surface, not full hardening. "

"That's right!" Xiang Jiyong's face showed a smile. As a production section chief, he naturally knew some conventional production techniques. However, he just knew it but didn't know why. For example, the case of surface hardening, he knows that it is a process necessary for the processing of gear parts, but it is impossible to make him say so accurately. His job is only to make the workshop operate according to the design of the process engineer of the technical department. As for the principle, he will not go into it.

怎么 样 "How about, Director Miao, Chief Xiang, Qin Hai's ability is good, right?" Ning smiled hesitantly, Qin Hai showed his face in front of Xiang Jiyong, making him feel that he had light on his face. Anyway, he was the first to know Qin Hai in the whole factory, and he was considered a good buddy of Qin Hai.

Xiang Jiyong heard Ning Mo talk, turned his head to him, and said with a stern face: "Fat, Xiao Lei, you know Qin Hai, you have to learn from others, you know? Do n’t know how to play cards and play consoles all day long. They are as old as you and know so much. Look at yourself. "

"Uh ... we actually only met Qin Hai yesterday. We don't intend to worship him as a teacher ..." Ning Mo was somewhat timid about Xiang Jiyong, because the production section chief had some iron fists like grasping labor discipline. In style, although Ning Mo is the son of Ning Zhongying, he was also severely deducted several times by Xiang Jiyong.

"You two go to work first, Qin Hai, you go with me." Xiang Jiyong finished training Ning Mo and Miao Lei, sent them away, and then said to Qin Hai.

"What did Chief Xiang Xiang say?" Qin Hai asked.

"You just follow me, Chief Leng is waiting for you in Director Miao's office." Xiang Jiyong said.

The three of them came to the director's office at the corner of the workshop together. Leng Yuming, the head of the technical section, was sitting in the room. After talking with Xiao Dongping yesterday, Leng Yuming was pondering the problem of improving the quality of rotary blades. After thinking about it for a night, he took Xiang Jiyong to the foundry to discuss with Miao Funan as soon as he came to work. After being assigned to the foundry, it was only when Miao Funan and Xiang Jiyong went to test the Qin Hai school.

"This is the technical director of our factory, Leng Yuming, and he is a college student who graduated from Harbin Institute of Technology in the 1960s." Xiang Jiyong first introduced Qin Hai, hoping to bring Qin Leng to Qin The sea bluffed.

Wu Qinhai has always paid a little respect to college students in the 1960s, not to mention people from the cattle school like Harbin Institute of Technology. He nodded to Leng Yuming and said, "Leng Ke is a senior, I'm just a schoolboy."

Leng Yuming waved his hand, filtered out Qin Hai's compliment, picked up a rotary tiller blade from Miao Funan's desk, and said, "Listen to Lao Xiao, when you were drinking with him last night, you said yes Ways to improve the quality of rotary blades in our factory? "

Xi Qinhai also guessed that Xiang Jiyong and Leng Yuming's intentions must be related to what he said to Xiao Dongping, and nodded: "Yes, but last night I just said that there is such a possibility."

"What about now?" Xiang Jiyong heard the mystery in Qin Hai's remarks and couldn't help asking.

Qi Qinhai laughed: "Now I'm pretty sure, I can do it."

"Why?" Several leaders were shocked by Qin Hai's mad words, and Leng Yuming was helpless. This little young man dared to say that he could do it.

Qin Haidao: "According to the information I have read, currently the most common foreign processing technology for the wear parts of rotary blades is high-frequency induction overlay welding on the blade edges. Yesterday I was not sure if this is the case in our factory. I just found out that our factory has a high-frequency induction furnace. With this furnace, a little modification can be used for high-frequency induction surfacing, so I said that it can be done. "

"You know high-frequency induction overlay welding?" Leng Yuming started to get a little confused when he saw Qin Hai's eyes, and he picked up a treasure. This guy is really a treasure.

Leng Yuming has also seen this technology in high-frequency induction surfacing, and has some understanding of its general principles. But he didn't know what to do, especially what the equipment was like. In an age without the Internet, it is more difficult to find some scientific information than to reach the sky. As soon as Qin Hai spoke the word, he knew that Qin Hai's thinking was correct. If the blade edge of the blade can be treated with high-frequency induction overlay welding technology, half the life of the blade can be completely achieved.

唯一 The only question now is how much Qin Hai knows about this technology.

Qin Hai saw Leng Yuming's doubts. He pulled a stack of stationery from the table and grabbed a drawing pencil. UU read the book www.uukanshu.com and drew Leng Yuming directly on the paper. Schematic diagram of the process, explaining while drawing:

"Cold Chief, you see, the principle of high-frequency induction surfacing is ... the main equipment required for this method is a high-frequency inductor, which is also the core component of the high-frequency induction hardening furnace. In addition, an additional Fixtures, adjust the current, and it won't cost much. "

"Oh! That's great!" Leng Yuming slaps the table with joy, "I thought about this matter for several months, and I couldn't figure out the technical details in it. I can fully understand that. By the way, Xiao Qin, where did you learn from? Did the technical school teach this? "

"This ... I mainly learned it by myself." Qin Hai replied, he dare not say that it was taught by the technical school, otherwise Leng Yuming came to the technical school to inquire and he would help.

"When I was in a technical school, I was more interested in this knowledge. Sometimes I went to the library of the Provincial Library and the University of Technology to see some miscellaneous books. This is what I saw at that time." Qin Hai concealed.

"What book? Can I borrow it again?" Leng Yuming asked.

Qinhai shook his head: "I read a lot of books, patronizing the principles, not remembering the title. However, I can guarantee that these principles should be correct."

"Of course, right, I knew this principle was okay as soon as I heard it!" Leng Yuming said affirmatively, "I just have not been exposed to this technology in the past. I saw the name in the magazine, but I didn't say it clearly. Xiaoqin you I can fully understand this explanation. Lao Miao, this little Qin is a treasure. It is a pity to put it in your workshop. I will transfer him to our technical department. "