Late at night, the fan workshop was brightly lit, and hundreds of workers sat at a large open table and listened to Chen Xu hang the design drawings on the blackboard to explain and analyze. When I'm done, I'll switch it out and start the next chapter.

After only half an hour, Chen Weiguo dared to get up in a workshop, and in order to relieve Chen Xu's pressure, he specially called more than 50 technicians to come over. These old technicians have a temper greater than the president of the country, and they have worked in the factory all their lives, and basically they can not listen to anyone except the factory director. Fortunately, Chen Weiguo explained that Chen Xu wanted to teach technology for the factory, and these old workers also knew that the efficiency of the factory was getting worse, and they were about to collapse.

When I arrived at the scene, I saw the formation, and Chen Xu had something to say as soon as he opened his mouth, and he talked about key technologies, not nothing. These old workers are even more temperless, standing or leaning against the wall to listen to the lecture quietly, and do not forget to take out a notebook from their pockets when they hear the key points to prevent forgetting.

Chen Xu is striving for perfection and strict quality control for products, and requires workers to pay strict attention to the quality of parts during the explanation process, but all defective products must be discarded.

On the one hand, the idea of saving costs is to blame, as long as the parts can be stuffed into the machine and operate normally, even if there are defects, they will not be discarded.

This has caused many small problems and poor durability of the product, which cannot stand the test of time. It is this kind of loose quality control requirements that has caused the poor reputation of the product to sell, and the more it cannot be sold, the more the factory will save materials...... Then there is a vicious cycle until it goes out of business.

Chen Xu didn't want any quality problems with the first product he personally developed, so he repeatedly emphasized that the quality of the parts must be excellent, and the slightest flaw must be discarded!

As for the brand of the electric fan, it follows the original old name "Panda brand" electric fan. The names of commodities in this era are nothing more than the local names of Phoenix, Seagull, Panda, Dongfang, and Rising Sun, and because of the underdevelopment of information, different provinces may have several brands with the same name and surname, and they all have their own spheres of influence that do not conflict with each other, which is also a characteristic of this era.

Chen Xu doesn't pay much attention to the brand, everyone likes "Panda", so it doesn't hurt to use this name. It's just that the design of the original trademark is too old-fashioned, no matter how you look at it, it looks like a dog with a sharp mouth, so Chen Xu replaced it with a cartoon icon similar to the appearance of Kuma bear, which is much cuter and more pleasing to the eye.

When Chen Xu finally hung up the design drawings of the propeller fan blades, and saw the dense logos on the drawings, the old technicians who knew how to do it made gasping sounds in their mouths.

Surface finishing is quite a complex technology, how to cut the fan blade when cutting, when to stop, when to turn, the processing surface of the fan surface has strict settings, even if it is more than one knife to process the arc surface will not be ideal.

The real submarine propeller surface processing is complex and abnormal, just like when you copy the brush words have a mistake, not to mention the heavy knife to process the surface of steel, the real hand-polished yield is less than one percent, that is, to process a hundred blades, there may be only one available.

Even in the most ideal state, it would take two or three months for a few senior technicians to grind a blade, and if the number of failures is also included, it is estimated that it will take five or six years to polish a seawolf's propeller by hand.

This is still an estimate in the case of a design drawing, if there is no drawing, there is no number, so blindly pondering to polish, thirty or fifty years can not be made.

The Soviet Union is a military power, but there are no high-end precision machine tools, so they can't process high-precision propeller blades, and if they can't process them, they can't have real numbers.

Don't think that the propeller is calculated with a pen, it is actually yàn!

The researcher first designed a rough theoretical value, then used a machine tool to process a rough propeller, and then carried out underwater realization, and constantly modified the number to achieve the best state.

So, behind a successful propeller, there may be a thousand and ten thousand failures! The design parameters summarized from these failures are the most precious, which is the real failure is the mother of success.

The Soviet Union did not have high-end CNC machine tools, so although they had design experience, they did not have a method to quickly process the propeller, and the number of designs could not be verified, so the propeller surface processing always lagged behind the West.

Of course, Chen Xu also took into account the processing failure, so the design drawings he drew were simplified, and many unnecessary values were deleted by him. After all, this is just processing an electric fan, and it doesn't need to be so complicated.

The processing methods of the seven blades of the fan blade are different, don't think that you can simply copy it, you have to make seven different molds separately.

"Director Chen, just spare us! Such a complex processing is more difficult than digging out the barrel and engraving, and we old bones can't do it! Before he could speak, some of the workers below shouted loudly.

"You old things, you have something to do for you, and now you have the right to pick! If you love to do it, stay there, and if you can't do it, go back to the grass pressure cooker. Zhong Jian sipped his slippers, sat on a pile of iron pieces, held a cigarette in his hand, and smiled and scolded at the crowd.

They are all old workers for more than ten years, and they usually look down and don't look up, and they are not polite when they talk.

However, no one wants to go back to casting pressure cookers, and complex technology often means that the technology is high, and there is a sense of accomplishment in doing it. After a lifetime of military work, he planted a pot in the workshop every day when he retired, which really consumed people's will, and people became decadent after a long time.

Chen Xu clapped his palms and attracted everyone's attention and said: "Don't worry, I am going to use a mold to stamp and cast this kind of fan blade, if you go to polish them one by one, you can't draw it." So we just need to build a mold according to the drawings, and I believe it is not a hassle for everyone. ”

"Is the number on this wrong, why is the outline of this fan blade so big, according to the number, this fan is as big as this workshop, this is not like making the blades of an electric fan." Some workers came to the drawing to observe the number jù, and found that the value marked on it was unusually large.

"This is because when I designed the fan, I borrowed the design scheme of the submarine propeller, so you can see that this value will be very large. When you cast the mold, you can reduce the value according to the proportion. Chen Xu nodded and explained on the spot.

Hearing this, there was another sigh around him, for these workers, Chen Xu broke through too many thinking restrictions today.

For them, they never imagined that the original fan could be designed so delicately and beautifully, and the wind coming out of the fan by rotating the fan side by side with two fan blades would be closer to the natural wind, which was the first time they had heard of it.

After all the design drawings were finished, Zhong Jian took the initiative to divide more than 100 workers into five groups, and each group was assigned different processing tasks.

After the disbandment, the five groups all received drawings and went to make parts according to the requirements, but Zhong Jian and the five elderly workers stayed, and Chen Xu had other arrangements for them.

"A few of them are old fitters, and the propellers you just saw are just a sketch, and that thing can only be used as an electric fan, not on the countertop. I still have a complete picture here, I wonder if a few of you are interested in studying it! Chen Xu's eyebrows twitched, as if he was a strange uncle who was holding candy to tempt children.

The six old men looked at each other a few times, and after nodding to each other, Zhong Xu took a puff of cigarette, threw the cigarette butt on the ground and stepped on it, and said loudly: "Director Chen, if you have any good things, take them out!" A few of our old men followed. ”

Chen Xu was secretly happy in his heart, the bait of his pit plan was an electric fan, but when the Japanese came to contact him, they would definitely have to come up with the real thing. If it were just a ready-made drawing, with the treacherous and cunning character of Little Japan, it might not bite the hook.

The real thing is naturally the propeller of the real Seawolf-class nuclear submarine, and it needs to be operated by the six most qualified national treasure-level fitters of the tank factory in front of him.

Chen Xu took out the design drawings rolled into paper tubes and placed them under the table, and spread them out on the table one by one. There are eight designs in total. The number of seven paddles is jù, and the number of kù is the number of pests. As for the quenching and smelting process of the paddle material, there is no need to take it out.

"Boy! I've been engaged in the military industry for most of my life, old man, and this is not like the propeller of a World War II submarine! This machining accuracy is more complex than the average warship propeller, and it is clearly the most advanced propeller design. Qian Junming is the best fitter here, and he was the first to discover the inappropriateness in the drawings.

Zhong Jian carefully studied the eight pictures, and said with a sad face: "Director Chen, don't hide it from us old men, where did you get this picture?" ”

"I figured this picture out by myself with reference to the design of the Soviets!" Chen Xu knew that in front of these experts, he had to explain half-truths and half-truths, and let these people make up the process by themselves.

"Then these pictures are military secrets! What do you mean by letting us see? Qian Junming asked with a frown.

Chen Xu touched the back of his head and said with a smile: "It's nothing, I just want a few people to make a physical model according to the drawings, I want to take it to Tokyo and Little Japan to change something, such as high-end CNC machine tools and the like." ”

"Such a big matter, how can you discuss with a few of our old men, and call Director Chen over cleanly, he has to be the master of this matter!" Zhong Jian immediately jumped up, turned around and was about to call Chen Weiguo, who was directing the workers in the distance.

"Old Clock...... Listen to me! Chen Xu grabbed Zhong Jian and hurriedly said: "It's not that you don't know my eldest brother's character, if you let him know that this thing is a cutting-edge submarine propeller, it will definitely be handed over to the state." At that time, there will be nothing for us, and the matter of high-end CNC machine tools will definitely follow! ”

As soon as I heard that the CNC machine tool was gone, several old workers were silent, everyone knew that the CNC machine tool was a good thing, and there was no one in the country, if Chen Xu boy could get one back from Japan, just to engage in processing business, the factory could immediately become prosperous.

"But this involves military secrets, if you don't report it, it doesn't matter if a few of our old men are half cut into the ground, but you are still young, if you are investigated from above, it will not be a matter of one year or two in prison!" Some fitters expressed their worries, and they didn't want Chen Xu to have an accident with a talent like Chen Xu in the factory than to get advanced equipment.

Chen Xu waved his hand generously, and said with spittle: "Military secrets of fart!" This picture is made by me one by one, I use my own things to exchange for CNC machine tools, what is the matter of confidentiality! Besides, if this picture falls into the hands of the navy, they will benefit, and we will not be able to eat the meat scraps. ”