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"On the left is Miao Lei's father, the right side is the master, Xi Ji Yong.

Ningmetted two people who came over in Qinhai.

Qin Hai nodded, greeted, said to Miao Fu Nan: "Director of Miao, I am a student who has just allocated this year. I am casting, the labor department let me go to the casting workshop to do the sand work, this is me Introduction letter.

Said, Qin Hai gave the introduction of labor and literature to Miao Fu South.

Miaofu South took the introduction letter, and did not move the color and exchanged a look, then said: "Oh, you are Qin Hai, I will ask you, what are you learning in the technical school?"

Qin Haidao: "My master is casting, and the belt also learns some heat treatment.

In addition, I usually prefer to read books, so I know some about things involving material performance.

Qin Hai said like this, I want to leave my mouth.

He has exposed a hand in front of Xiao Dongping, which can judge the quality of steel by meritoring and identifying the sound, and this skill is unable to use technical school learning.

Say that I usually like reading, so I have learned some extra things so you can find an excuse for all kinds of knowledge you have.

"Oh? Young people, the number of years is not big, the tone is not small.

Xie Ji Yong did not lose a sentence.

He is coming to the casting workshop today, it is to try the opportunity to try the book of Qinhai.

Now Qin Hai is in the mad, and Xi Ji Yong just seized this opportunity, so that the mountain did not show the school for Qin Hai.

"Uncle, Dad, Qin Hai really have this."

Miao Lei said to Xi Ji Yong and Miao Fu South two, "He will do quench and do it.

Miao Lei was in a hurry to recommend Qin Hai to his father and Xi Ji Yong, but it is not intended to have a decision of Ji Yong.

He asked Qin Hai along with Miao Lei: "Is it? Do you know quench?"

Qin Hai felt that he had a little bit of the thief boat, Miao Lei had a tongue, and he gave him to the fire.

He didn't know what this faceless production department was thinking, but he had to say ambiguous and said: "The science governor said that I asked me, quenching the craftsmanship, I dare, I dare to say that I have fully understood it.

However, the conventional heat treatment of common model steels, how much I have learned, but I don't know which one is asked.

I saw a side of the Ji Yong, and then I asked by the hand, asked Qin Hai: "Do you know what this equipment is doing?"

Qinhai looked at it and immediately replied: "I have seen this in school. This is a high-frequency induction quenching furnace, which is used to do parts surface quenching.

"Well, what is the meaning of surface quenching?"

Xi Jong asked again.

This problem, is certainly can't help Qinhai. He even brought a little more, and he replied fluently: "Surface quenching is only quenched on the surface layer of the workpiece without affecting the center of the workpiece.

In general, the depth of surface quenching is 0.

Between 5 to 2 mm, the machining object is medium carbon steel and medium carbon alloy steel.

"So why do you want to do surface quenching? Is it better to quench more?"

Xi Ji Yong continued.

Qin Haidao: "The depth choice of quenching depends on the purpose of the workpiece.

Surface quenching is mainly used for parts operating under the conditions and friction conditions, such as gears, crankshafts, and the like for agricultural machinery.

The performance requirements of these parts are high hardness and wear resistance, and the heart is sufficient plasticity and toughness.

Therefore, the quenching must only be limited to its surface, and it cannot be fully quenched.

"nice!

Xi Ji Yong's face revealed a laughter, as a production department, and he is naturally understood by routine production technology.

However, he just knows that it doesn't know how it is.

For example, the surface quenching this thing, he knows that the gear parts are required to process a process, but let him say such accuracy, but can't do it.

His job is just to operate the workshop according to the design of technical engineers. As for the principle, he will not go deep.

"How, the Director of Miao, Xiangzhi, Qinhai's book is good?"

Ning Mo smiled, Qinhai revealed his face in front of Xi Ji Yong, let him feel that he also has light on his face.

Anyway, he is the first to know Qinhai, and it is a good buddy in Qinhai.

Xi Ji Yong heard that he turned his head to him, boarded his face: "Fat, Xiaolei, you know Qinhai, you can learn from people, do you know? Don't know the card, play the game machine.

People are as big as you are, knowing so much, you look at yourself.

"Oh ... we are actually knowing Qin Hai yesterday, we are not going to worship him ..."

Ning Mo has a little more embarrassing, because this production department grasps the discipline of labor discipline, but although it is expensive as the son of Ning Zhongying, it has been deducted by Ning Yong. Retreat.

"You go to work first, Qin Hai, you will take a trip to me.

Xi Ji Yongxun is finished by Ningmuri and Miao Lei, and he tried his two and then said to Qinhai.

"What is the commander of the item?"

Qin Hai asked.

"You will follow me, the cold sector is waiting for you at the office of the Director of the seedlings.

Xi Jong said.

Three people came to the director of the workshop, the technical department is cold and jade, just sitting in the house.

After chatting with Xiao Dong, Cold Yuming was pondering the quality of improving the quality of the revolving knife. Today, I pulled the coming to the casting workshop to discuss with Miao Fu South. I can't think of Qin Hai. It was assigned to the casting workshop, which has a matter of Miao Fu South and Xi Ji Yong to take the school Qinhai.

"This is the technical department of our factory, the CHANG Yuming, he is a graduated from Harbin University in the 1960s.

Xi Ji, first introduced Qin Hai, I hope to take the cold Yuming's head.

Qin Hai has always been a little respect for college students in the 1960s, let alone people from Harbin Institute of Technology.

He nodded to cold jade, said: "The cold sector is the predecessor, I am just a primary school.

Cold Yuming swayed, filtered out the rhetoric of Qinhai, picking up a spiral blade from Miao Fu South office, said: "Listen to Lao Xiao said, when you drink with him last night, he said How do you improve the quality of our factory? "

Qin Hai also guess the intention of Xi Jong and Cold Yuming should be related to him about Xiao Dongping, and nodded: "Yes, but I just said that there is such a possibility of this evening.

"what about now?"

Xi Ji Yong heard the mysterious machine in Qin Hai, couldn't help and ask.

Qin Hai smiled: "Now I am basically definitely definitely, I can do it.

"Why?"

Several leaders were shocked by the madness of the Qinhai, and the cold Yuming was unsettled. This little young actually dared to say it.

Qin Haidao: "According to the information I have seen, there is currently a wear member of a rotary plow blade, and the commonly used processing processes in foreign countries are high-frequency induction surfacing treatment for blade cutting.

Yesterday, I didn't believe that the factory did such an equipment. I just took me about the admiration me. I found that our factory had a high-frequency induction furnace. With this stove, you can do high-frequency induction, you can do high-frequency induction. So I said that I can do it.

"Do you understand high frequency induction binder?"

Cold Yumming looked at the eyes of Qinhai began to be a little blur, and I got it, this young man is really a treasure.

High-frequency induction is solder, Cold Yuming has also seen in the magazine, and understands the principles of principles.

But what should I do, especially if the equipment is, he is not known.

In an era of no internet, it is difficult to find a scientific and technological information.

Qin Hai said this word, he knows that the idea of ​​Qin Hai is right. If high-frequency induction surfacing technology can be treated with the blade edge of the blade, the blade life is increased is entirely possible.

The only problem now is that the Qinhai understands how much to this technology.

Qinhai saw the doubts of Cold Yuming. He held a stack of letter paper from the table, and grabbed a drawing pencil, directly on the paper, the cold jade picked up the process, while painting Explanation: "Coldwork, you come, the principle of high-frequency induction surfacing is ... The main equipment required for this method is a high-frequency inductor, which is also a core component of high frequency induction quenching furnace.

In addition, you need to install a fixture, adjust the current, and can't spend much more money.

"Oops!

Great!

Cold Yuming is happy to shoot a table. "This thing, I have been pondering for a few months, and I can't think of the technical details of them. I will understand it.

Yes, Xiao Qin, where did you learn from? Do you still ask this technical school? "

"This ... mainly is my self-study."

Qin Hai replied, he did not dare to say this is a technical school, otherwise Cold Yuming went to the technical school to listen, he wore it.

"When I am in the technical school, I am more interested in these knowledge, sometimes I will go to the Provincial Library and the Library of the University of Technology to see some miscellaneous books, this is the time to see.

Qin Hai was covered.

"What book? Can you borrow it again?"

Cold Yuming asked.

Qinhai shakes his head: "I am very miscepted by this person. I haven't remember the title.

However, I dare to guarantee that these principles should be right.

"Of course, I don't know if I have, I know this principle!

Cold Yuming said affirmatively. "I just didn't get in touch with this technology in the past, and I saw this name, but I didn't make it clear.

Xia Qin, you explain this, I will understand.

Old seedlings, this little Qin can be a treasure, put it in your workshop is so pity, I will transfer him to our technical department.