industrial overlord

Chapter 446 Technical Obstacles

The conversation on the beach was just a discussion of a retreat nature.The next day, Liu Xianghai summoned several capable officers under his command, together with Russian experts such as Tuchinov and Bles, held a special meeting with Lin Zhenhua and Zhang Yihua to finalize all the details one by one.As a steam turbine expert, Zhang Yihua mainly listened to everyone's technical requirements.Lin Zhenhua, as the person in charge of the company, discussed with you the progress, budget and other issues.

After the meeting, Lin Zhenhua and Zhang Yihua didn't stay any longer, and left in a hasty manner. They had to rush back to Xunyang to carry out specific tasks.Blaise did not go with them. He will stay in Weihai for a few more days, and then someone from the navy will send him to Xunyang. According to Liu Xianghai's arrangement, Blaise will work in Xunyang for a period of time, mainly Provide technical guidance.

On the plane back to Nandu from Jinan, Zhang Yihua flitted around happily, and pulled Lin Zhenhua to gossip, keeping his three sentences close to his own line.It can be seen that he is really attracted by the study of gas turbines.

"Old Zhang, why do I think you are full of confidence? As far as I know, gas turbines are not easy to manufacture. There are not many countries in the world that can manufacture gas turbines, right?" Lin Zhenhua couldn't help pouring cold water on Zhang Yihua, You can't do science without enthusiasm, but there are problems with too much enthusiasm.

Zhang Yihua said disapprovingly: "Of course I know that this thing is not easy to do. If it was easy to do, I wouldn't be interested. It's because of the difficulty that there are challenges."

"No way, old Zhang, how old are you this year?" Lin Zhenhua asked with a smile. In fact, he knew Zhang Yihua's age, and this question was just to remind Zhang Yihua to pay attention to his own age.Good guy, people in their 50s are still pursuing challenges, and they feel like they have a heartbeat.

"I was born in 1940, and I'm 53 this year." Zhang Yihua didn't understand what Lin Zhenhua meant, and he replied seriously, "Oh, if you don't hurry up, it's time to retire in a blink of an eye. Come up with an idea, so that this life will not be in vain."

"Old Zhang, don't worry." Lin Zhenhua said, "As long as you still have energy, it doesn't matter if you work until you are 70 or 80 years old. You didn't look at Mr. He, he is also in his 70s, isn't he still working?" What I mean is, let’s do it according to the nodes proposed by the military, don’t be too desperate.”

Zhang Yihua said: "It's not risking your life, Mr. Lin, you don't know that there are many obstacles in front of us to engage in gas turbines. Any obstacle may stop us for several years. Therefore, for problems that can be solved, we must Take the time to solve it, and set aside time to deal with obstacles that may arise."

Lin Zhenhua asked: "Old Zhang, in your estimation, what are our main obstacles?"

Zhang Yihua counted with his fingers: "The material of the blade, the processing and forming technology of the blade, the precision machining of the cylinder block and transmission parts, and the control system. The most important obstacles are these four aspects. As for other less serious obstacles , there are dozens more, but with our efforts, it should not be difficult to overcome these obstacles.”

"We have already accumulated some materials for blades. Didn't we already have some materials when we built steam turbines? The two should be connected, right?" Lin Zhenhua analyzed.

Zhang Yihua nodded and said: "The basic principles are the same, but there are still some differences in the specific performance of the materials. This may need to entrust Huaqing University to help solve it. By the way, isn't your sister over there in charge of the work? ?”

Lin Zhenhua smiled slightly and said, "It can't be said that Xiaofang is in charge of the work. Professor An Zixuan is still the main one there. However, Xiaofang has made rapid progress recently and has published several high-quality papers. Professor An I still have a lot of trust in her.”

"Well, this little girl is a bit aggressive in her work, I like her character." Zhang Yihua praised.

Lin Zhenhua smiled and said nothing. Did he know that his sister didn't have such a spirit of hard work when she was a child. If it wasn't for his careful guidance, Lin Fanghua might not have been able to pass the Huaqing exam.These years, Lin Fanghua studied in the United States, and when she came back, she encountered the big ethylene research and Lin Zhenhua's suspension for review. All these experiences made her character change and became stronger and more tenacious.To be honest, seeing this change in his sister, Lin Zhenhua was also very pleased.

"In terms of precision machining, we will leave it to the machine tool company to solve in the future." Lin Zhenhua continued to analyze the difficulty of the project, "Old Zhang, please form a document with the specific requirements for machining and submit it to Manager Cen and Factory Manager Ma, and let them take the problem with you." To engage in research and development. It is an excellent opportunity for our own machine tool company to provide support for our own projects.”

"As for the control system, let Mr. Wei Jingwen's Electronics Research Institute take care of it first." Zhang Yihua is also coming up with ideas, "Lao Wei is very good at automatic control, which is worthy of being cultivated by us at Beihang University."

Zhang Yihua came from an aviation background, and he and Wei Jingwen were kind of close friends, no wonder he would speak for him.However, the Institute of Electronics led by Wei Jingwen is indeed unambiguous. There are more than a dozen old engineers dug from various electronics institutes, and dozens of young and middle-aged technicians who graduated from famous domestic schools or returned from abroad. The strength is very strong. .At present, the machine tool company is engaged in CNC machine tools, and the part of the control system depends on the Electronics Research Institute.

"Are there any specific requirements for blade molding? Is the blade going to be formed by powder metallurgy or die forging?" Lin Zhenhua continued to ask. He didn't know much about steam turbine technology, but he generally knew that these were two common types of blades. Molding.At present, these two crafts have their own difficulties for Hanhua, and it takes a lot of effort to overcome them.

Zhang Yihua said: "I discussed this issue with Blaise yesterday. He is more inclined to engage in die forging. I also have the same opinion. However, Russia has a good foundation for die forging. They have the world's largest 7.5 The [-]-ton die forging machine has a very good forging effect. Our country does not have this level of die forging machine. If the forging pressure is insufficient, it will be difficult to achieve the microstructure evolution effect we need, and the service life of the blade will be affected. "

"Die forging machine..." Lin Zhenhua muttered, "Old Zhang, do you think we need a die forging machine with at least how much pressure?"

"At least... 4 tons." Zhang Yihua said hesitantly, "Russia has 7.5 tons, and we should have at least 4 tons to get closer to them. From what I have read, it is less With a pressure of 4 tons, it is difficult to achieve precision machining of gas turbine blades."

Lin Zhenhua said: "Why can't we produce 8 tons? I think, if we want to do it, we should do it big, and we can upgrade it after saving."

"8 tons!" Zhang Yihua's eyes lit up, "It would be great if we could produce 8 tons. Do you know that we used to build large aircraft because of the lack of large die forging machines, and the fuselage girder only It can be manufactured through segmental forging, and the strength is far from meeting the requirements. If there is an 8-ton die forging machine, there is hope for re-installing a large aircraft.”

What Zhang Yihua said is correct, the level of the large die forging machine almost represents the level of the aviation industry.In later generations, when France launched the A380 large passenger aircraft, the landing gear, the most critical force-bearing component, could only be sent to Russia, and Russia was asked to use a 7.5-ton die forging machine to help roll it.

"Let's forget the big plane first..." Lin Zhenhua waved his hands again and again, he was frightened by Zhang Yihua's ambition.The big plane is a gold-swallowing behemoth, and it is very difficult to get any effect without smashing hundreds of billions into it.The five or six companies under Hanhua now have a combined annual output value of 50 billion, which is still far from being able to build large aircraft.

"Large-scale die forging is not only useful for gas turbines, but also for chemical equipment and machine tools. The pressure-resistant parts on some equipment need to be forged and formed. The lack of large-scale forging machines restricts us too much. Big." Lin Zhenhua said.

Zhang Yihua said: "Mr. Lin, what you need is what you need. I also have to remind you that it is not so easy to build a large forging machine. A die forging machine with a capacity of more than 4 tons has high technical and financial requirements. We You have to think carefully about it.”

Lin Zhenhua nodded and said: "Don't worry, Lao Zhang, I am not an impulsive person. I have been thinking about the problem of large die forging machines for more than a day. This problem must be solved sooner or later, otherwise our entire machinery manufacturing The level cannot be improved. In addition to die forging, free forging machines must also be considered, and at least one free forging machine with a capacity of more than 1 tons should be available to meet the demand."

"Boss Lin is really a person who does great things." Zhang Yihua sighed sincerely.

Lin Zhenhua said: "Old Zhang, just wait and see. The time is not yet ripe. After two or three years, the company's funds will be looser for further training, and it will start to build large-scale forging machines. Both free forging and die forging will be used. I reckon that by then, the domestic manufacturing industry will have developed to a new level, and we have installed two forging machines, and we can recover the investment just by undertaking the forging business."

The two chatted all the way, and before they knew it, the plane had already landed at Nandu Airport.The two packed their luggage and got off the plane. Xu Zhong, the driver sent by the company to pick them up, was already waiting for them at the exit port. Seeing the two of them walking out, Xu Zhong waved his hands.

"Boss Lin, look, Xiao Xu is over there." Zhang Yihua pointed in Xu Zhong's direction and said to Lin Zhenhua.

Lin Zhenhua didn't hear Zhang Yihua's words, his attention was attracted by the people beside him.Those few people were all wearing long-peaked caps, each of them was arrogant, pulling a suitcase, and talking loudly as they walked out.The way they speak is very special. At the same time, several people are making voices at the same time. It seems that no one cares what others say, and they don't care whether others are listening. They are just eager to say what they want to say.

The language of these people was a language that Lin Zhenhua could not understand, but this did not mean that Lin Zhenhua was not familiar with this language. At least, he heard a modal particle that appeared very frequently: Smecta.

　Update in the middle of the night, continue to ask for monthly tickets.I have to work overtime tomorrow, and it is estimated that I will not be able to update until evening.

　　
　
(End of this chapter)