The second group almost repeated the mistake of the previous group of three, and within half an hour of the machine starting, all the knives had collapsed.

This is all predictable, after all, the two groups of people basically use the same plan.

In fact, this kind of accident can be found in the previous test, but the time of the test of these technicians is too short, just after driving for more than ten minutes, I feel that the lathe is running normally, and I am impatient to determine that the modification is successful, if they have a little more time to test, it is completely possible to find this situation.

Seeing that the second group of participating technicians was terminated, Cheng Changlin felt a little gloomy.

After all, Cheng Changlin is in charge of managing the technical department, and when he saw these technicians making a move, he was seen through his underwear, which made him feel embarrassed.

But the game is still ongoing.

In the third group of competitions, there was finally a lathe that insisted on running for an hour, although the processing efficiency was not greatly improved, but it was a successful technical transformation plan, which also allowed Cheng Changlin to regain some face.

Finally, the last group of Duan Yun and Tian Feng came on the field.

As the only grassroots worker who participated in the lathe modification competition, Duan Yun became the focus of attention from the beginning.

As for Tian Feng, he seemed to be full of confidence today, and after taking out the drawings, he began to instruct the workers to help him assemble the lathe.

Duan Yun rolled up his sleeves and assembled it by himself.

Duan Yun is the only one among the eleven people who installs the workpiece by himself.

Duan Yun's action of assembling the workpiece is very skillful and careful, the gear is installed and fixed tightly, and then the butter is applied little by little, obviously very cherished by the equipment.

Seeing Duan Yun's skillful assembly movements and focused expression, Cheng Qingyan's eyes, who had been standing beside her father, also flashed a faint look of surprise and admiration, in her opinion, Duan Yun has skills, and his hands-on ability is not comparable to the group of technicians just now, which is indeed not easy.

On the other hand, Tian Feng commanded several workers with a condescending look, with a bit of arrogance on his face.

After seeing this, the other factory leaders who were watching here were silent, but they also admired Duan Yun a little in their hearts, after all, there are few people who have some ability and know how to be low-key, and Duan Yun has excellent qualities that many people don't have.

Although Duan Yun won the favor of everyone present, the ranking of the competition still depends on the efficiency of the machine.

After the workpiece was assembled on both sides, the factory director Qin Gang signaled to start the machine.

"Buzz!"

The machines controlled by Duan Yun and Tian Feng started at the same time, and the main motor sounded a dull hum.

The eyes of the factory director Qin Gang and the chief engineer Chang Lin suddenly looked at the lathe controlled by Tian Feng, while the secretary Zhao Dongsheng focused his attention on Duan Yun's side.

Both sides processed the tooth embryo with module 5 commonly used in the factory, so the two of them had a very fair competition this time.

"Thorn!"

A sharp metal cutting sound sounded, dark blue iron filings rolled down in circles, and a rough tooth germ was quickly cut.

"Click!"

The lever pushes the transverse turning tool forward, the machined tooth embryo is cut off, the spring chuck is released, and the scrap rolls down into the iron box located under the spring chuck head.

Duan Yun's modification of the new lathe this time is similar to the modification principle of the old lathe last time, but some transmission parts of the chassis have been redesigned, yes, the linkage gear inside is more compatible with the current lathe power speed.

And when Duan Yun turned his head and glanced at the modified lathe of Tian Feng at the station next to him, he was stunned for a moment.

To Duan Yun's surprise, this time Tian Feng actually did not 'copy the homework', Duan Yun saw at a glance that his automatic lathe modification scheme was obviously different from his own, two different types of blades were placed on the tool holder at the same time, and a linkage device was also set up next to it, so that this lathe could not manually replace the cutter head, and complete the two automatic processing steps of rough turning and fine turning at one time!

In fact, Duan Yun had thought of this scheme before, but the reason why he finally gave up this scheme was that the temperature was very high after the workpiece had just been roughened, and the finishing was carried out directly without waiting for cooling, which would cause the temperature of the workpiece to be too high and deformation and affect the machining accuracy.

Moreover, the speed required for rough turning and fine turning is also different, and if the speed is adjusted automatically frequently, the gearbox needs to be re-improved, which will be quite complex and has potential instability, so after comprehensive consideration, Duan Yun still decided to process rough and fine turning separately.

Time passed minute by minute, the atmosphere at the scene was a little dull, and everyone's eyes were intently looking at Duan Yun and Tian Feng's workstations.

Compared with the three groups that participated in the competition just now, Duan Yun and Tian Feng's design is obviously much more clever, and in the eyes of many people, if nothing else, the champion of this technical transformation competition should be decided by the two of them.

"Click!"

With a soft sound, the lathe of Tianfeng station has another tooth embryo processed, rolled down in the iron box below, counting the twelve tooth embryos processed before, this modified lathe has been processed in half an hour Thirteen modulus 5 tooth embryos!

On the other hand, Duan Yun here, the eleventh tooth embryo has just been processed, and there is a difference of two finished products!

Seeing Director Qin's eyes, Cheng Changlin stepped forward with the vernier card to measure the accuracy, and after a while, he turned his head and smiled at Qin Gang and said, "It's all qualified!"

"Very good!" Qin Gang smiled when he heard this.

"Bang Bang!"

Seeing this, the other onlookers slapped their hands.

Obviously, Tian Feng's modified lathe is more efficient, and it is basically a sure thing that he won the first place in this technical transformation competition!

For a while, the praise for Tian Feng's technical level was endless, and Qin Gang and Cheng Changlin were also smiling when they saw this.

At this time, Cheng Qingyan, who had been observing the lathe for a long time, stepped forward curiously and picked up the drawings that Tian Feng had put on the tool cabinet just now.

At the first glance of this drawing, Cheng Qingyan felt a little familiar, and when she saw the handwriting marked in the lower left corner of the drawing, she turned her head to look at her father, and her eyebrows suddenly wrinkled......

"Lao Zhao, it seems that all the young workers in our factory are terrible, Comrade Xiaoduan is indeed very good, although he lost this time, if he can learn the lessons of failure in the future, learn more and ask more questions, and lay a solid technical foundation, he will still be able to make great contributions to the factory in the future......" At this time, Qin Gang turned his head and said to Zhao Dongsheng with a smile.

Although Qin Gang's words were very decent, they actually had a bit of irony.

"Wait a little longer, there are still a few ingredients that haven't been processed. After Zhao Dongsheng glanced at Duan Yun and the lathe, his face was slightly gloomy and said.

"I've been standing for a long time, let's go to the dispatch room and sit and drink saliva and wait, it is estimated that Tian Feng will be fully processed in another twenty minutes. As Cheng Changlin spoke, a flash of pride flashed in his eyes.

"Hmm......" Seeing that the other factory leaders had already left with Qin Gang, Zhao Dongsheng frowned and glanced at Li Duan Yun again, and then turned around and left.

"Lao Wu, help me look at the machine, I'll go to the toilet!" Seeing that the leaders had already left, Tian Feng's face was full of pride, and he beckoned a worker to help him watch the machine, leaving the workstation, and when he passed by Duan Yun, the corners of his mouth were hooked, and he seemed to say to himself: "Dog meat can't be on the table after all......

It's just that Tian Feng had just left, and a faint white smoke came out of the gap in the gearbox shell of his machine......

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