I! Pretending to Be Reborn, Director of Doomsday Hoax

He Yude's heart was about to jump out, his eyes were full of enthusiasm, and he wanted to rush forward to understand the design of this new production line.

Wo Chengwen and the others were also full of emotions and looked at Xu Qiu eagerly.

Xu Qiu took it calmly and stated lightly.

His eyes contained wisdom and calmness.

"This new rolling process line, I call it, the arctic rail rolling process."

"This production line includes two walking furnaces, mainly for heating continuous casting billets."

"In the continuous casting process, I will additionally adopt a protection casting system to prevent secondary oxidation of molten steel during casting, reduce oxygen impurities in steel types, and improve its surface quality, etc."

"In addition, in the original continuous casting process, it is necessary to add a finish rolling to ensure the surface quality, internal quality, geometric accuracy, cold resistance, wear resistance, etc. of the rail..." Following Xu Qiu's narration, The eyes of Wo Chengwen and others became brighter and brighter.

Wo Chengwen slapped his thigh, his whole body was greatly shocked, and said excitedly: "It's still possible!"

"Using a casting system can indeed minimize oxygen inclusions!"

"We have been thinking about how to reduce oxygen inclusions in the heat treatment process or the quenching and tempering process, but... it doesn't have to be so complicated at all!"

"In the process of continuous casting, just add a casting device... This improvement is so ingenious!"

Everyone was as shocked as Wo Chengwen.

He Yude's cloudy eyeballs became more and more clear, and he was full of energy. He asked, "Director Xu, I'm curious about the finishing process. How should we carry out the finishing?"

Xu Qiu stretched out five fingers and said, "At present, I can think of five ways."

"First, the continuous casting bloom is used as the billet, which can significantly improve the low-magnification structure of the billet."

"Second, use a walking heating furnace to heat the billet. This measure can effectively control the atmosphere in the furnace and prevent decarburization and uneven heating temperature of the billet during the heating process."

"Third, high-pressure water descaling technology is used. This method can minimize the occurrence of defects such as rolling marks caused by iron oxide scale and obtain good surface quality."

"And, use a four-bar universal rolling mill for finish rolling to ensure the dimensional accuracy of the billet section." "The last point is also a requirement throughout. We need to formulate reasonable and optimized rolling procedures to achieve controlled rolling, so as to ensure high-level rolling. Straightness high performance rail!〃

Shocked in Wo Chengwen's eyes, he asked, "So, what are the precautions during the finishing process?" "

Xu Qiu thought for a while and said, "We need to pay attention to the way of heat treatment of the rails." "

"Heat treatment can significantly improve the mechanical properties of steel."

"The current heat treatment process mainly includes quenching and tempering heat treatment process and underspeed quenching process after rolling."

"But we took a completely different approach!"

Attracted by Xu Qiu's words, everyone started to think about it.

He Yude asked subconsciously: "What method?"

"A brand new method! A method suitable for the extremely cold rail rolling process! We will improve the yield strength and tensile strength of the rail by controlling the rolling temperature and in-line heat treatment process!"

Xu Qiu's words made Zhenyun angry, and he continued: "Use the long-rule cooling, reverse pre-bending and long-rule straightening process to increase the yield, reduce the bending degree before straightening and reduce the residual stress after straightening, so as to improve the rail quality. Fatigue life I"

"Using on-line quality inspection technology, through ultrasonic, eddy current and laser inspection of rails, we can fully understand the internal, surface quality and geometric dimensions of rails, and adjust and correct them at any time to ensure the final yield I ”

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"At the same time, the rails can be end-machined and drilled with a saw-drilling machine with carbide for even higher machining accuracy!"

Gollum!

Wo Chengwen and the others kept swallowing, with uncontrollable excitement in their eyes.

Xu Qiu released more details of the extremely cold rail rolling process.

〃At the outlets of the two walking furnaces, a high-pressure water dephosphorization device needs to be installed to remove the raw iron oxide skin. "

"Two-stand 2-roller reversible billet breakers BD1 and BD2 are used to roll continuous casting billets into rail-shaped billets for extreme cold rail rolling. Before entering the extreme cold rail rolling line, cutting Tongue saw, cut off the tongue shape of the rail blank.”

"At the same time, before the U1E1 structure of the extremely cold rail rolling unit, another high-pressure water dephosphorization device is installed, with the same purpose as before."

"The extreme cold rolling has five racks in U1E1-U2E2-UF, which constitute the various equipment of the extreme cold rail rolling unit, among which E1 and U2 are extreme cold rough rolling mills, E1 and E2 are movable edge mills, and UF It is an extremely cold rail finishing mill, and it is a completely independent finishing mill!"

〃Similarly, before the U2E2 and UF rolling mills, high-pressure phosphorus removal equipment needs to be installed to further improve the surface quality of the rails! 〃

Three structural connection points, three high-pressure dephosphorization installations

At this moment, when Wo Tutong and others heard the specific formation of the extremely cold rail rolling mill, they felt shock and subtlety.

They never thought about the need to install three sets of high-pressure dephosphorization equipment, respectively at the exit of the heating furnace, the entrance of the rough rolling mill and the entrance of the movable edge mill.

Wo Chengwen asked a crucial question, and said, "Director Xu, I'm curious, what technology is this extremely cold rail rolling unit based on?"What is the core technology? "

This is the core structure of the entire production line and the key to connect every link.

Xu Qiu gave Wo Chengwen an approving look, and replied: "Compact box-type archway technology!"

"This is?" Everyone wondered.

Xu Qiu explained: "The rolling mill with this structure has the function of quick roll change, and can complete the roll change operation within 10 minutes."

"In addition, with the assistance of the compact box archway, the production line will be equipped with an automatic seam rolling control system, which can easily realize the precise setting of the rolling seam and ensure the precise control of the progress of the full-length rail section size!"

"Also, we have a more subtle approach..."

"Our production line can identify every fixed-length rail!"

Everyone took a deep breath.

Surprised praises were endless.

He Yude asked: "Director Xu, can this... be realized?"

By identifying the fixed-length rails, it is possible to implement individualized and precise size control for each piece of rail produced!

In the past, the steel was thrown into a large boiler, followed by a general process, and a lot of it was refined according to the mold.

But this extremely cold rail rolling unit is actually able to identify and precisely control each piece of rail produced? !

Wo Chengwen couldn't help but exclaimed: "Director Xu, how did you design the identification system?"

Xu Qiu smiled, "Actually, it's not as complicated as you think, and the equipment used is also very common."

"A... fully automatic printer!"

"Automatic printer?!"

This device was beyond the expectations of Wo Chengwen and others.

Xu Qiu went on to say: "In order to mark each fixed-length rail, after the rail leaves the universal finishing mill, a fully automatic printing machine prints the furnace number, continuous casting stream number, and billet sequence number on the rail waist. and the serial number of the rail."

"In addition, before the rails are marked and enter the cooling bed, there are two pendulum hot saws, which are used to cut off the head and tail of the rails, and cut a certain length of sample at the same time to test the composition, mechanical properties and Internal quality etc."

"The design of this cooling bed is also brand new. It will adopt a hydraulically driven walking beam structure. In addition, in order to reduce the bending degree after cooling, a pre-bending device is also set at the entrance of the cooling bed."

Looking at the sluggish Wo Chengwen people, Zou Baitao's expression became more serious, and his eyes were full of admiration for the young figure surrounded by them.

"Director Xu, it's really unfathomable..." Wang Xinke looked solemn and sighed.

Zou Botao said: "He once told me that he has a little bit of physics."

"So, for the next two hours, a puzzle that had been bugging me for days was solved for me. A physics puzzle about the extinction of the sun!"

Wang Xinke's pupils trembled.

Zou Botao is the No. 1 in physics in Longguo, and the only scientist in Longguo who won the Nobel Prize in Physics!

Xu Qiu's physics attainment is even higher than that of Zou Lao? !

Zou Botao said with relief on his face, "There is nothing unacceptable about this. The abundance of talented people in the Dragon Kingdom is a sign of prosperity!"

"And that's not all!"

"Later, he said that he knew something about machinery and design, so he gave the "Nuclear Power Train Construction Drawings", and at the same time, showed a piece of the greatest masterpiece in the history of machinery that has been lost for more than 200 years - a mechanical computer difference engine!"

"That's not an ordinary difference machine, but Xu Qiu's improvement on the basis of modern energy development... a nuclear power difference machine!"

"In this move, the differential engine powered by steam and coal uses nuclear energy as its energy source!"

Wang Xinke gasped.

The designer of the nuclear-powered train was Xu Qiu, he knew it.

But... nuclear energy difference machine, this thing is also the construction plan given by Xu Qiu? !

Wasn't that copied by Xu Fu and other mechanical masters of the older generation based on ancient records?

Zou Botao felt ashamed and said in admiration, "What happened later was even more astonishing."

"First came up with the arctic rails and directly taught all of you top rail engineers a lesson."

"Then I went to Shenlong Construction Engineering and asked them to produce concrete that can withstand minus [-] to [-] degrees. They also gave a new process and measures to improve the performance of concrete, which made the engineers of Shenlong Construction Engineering feel overwhelmed."

"Now he is still supervising the Energy Bureau's development of extremely cold wind turbines. Director Xu personally named it 'Wind Dragon'! Although I haven't seen Director Xu's proposal for a wind turbine yet, and the drawings..."

"But I believe that if the Energy Bureau has really come to an end, but still has not developed an extremely cold wind turbine, then Director Xu, who is still the last gatekeeper, will give a perfect answer!" "We ...I can't see where Director Xu's limit is at all. His IQ and what he has learned have reached an incomprehensible level..."

"To put it a bit out of order, I even want to cut Director Xu's head open to see what kind of structure is inside, whether the connection of neurons and synapses is a way of connection that surpasses that of human beings." Wang Xinke opened blankly. He pursed his lips and looked at the young people in the crowd.

Seeing the look on Xu Qiu's face, Wang Xinke and others are suddenly not afraid of the sun going out. With such a leader at the helm, and with him coordinating the disaster preparations of the whole country, what is there to be afraid of? !

In the next half an hour of 017, Xu Qiu introduced the mechanical configuration, connection sequence, and parameters of each system of the entire extreme cold rail rolling production line.On both sides of the outlet of the cooling bed, there is also a straightening machine.

The functions of the two straightening machines are not the same.

The straightening machine on the west side is used to correct the vertical and horizontal bending of the rails, and the straightening machine on the east side of the cooling bed is used to straighten the H-shaped rails.After passing through the straightening machine, it is necessary to enter the inspection center to test its internal quality and appearance quality.

At the exit of the testing center, there is also a two-way hydraulic straightening machine for supplementary straightening of the ends of the rails.

After that, there are also processes such as cold sawing, cutting to length, spray printing, bundling, and stacking.

In the end, Xu Qiu ended with some words.

"Compared with other rolling processes, extremely cold rail rolling has obvious technical advantages."

"It adopts a nine-stand layout, and the finishing rolling pass has no continuous rolling relationship, the rolling process is more stable, and the accuracy of the rail section size is improved."

"At the same time, because there are a large number of rolling mills and they are independent of each other, the passes can be flexibly arranged, which is conducive to the development of special-shaped section steel."

"Secondly, I have set up a multi-channel phosphorus removal technology, which can effectively remove the primary and secondary oxide scales produced during the rolling process, and improve the surface quality of the rail! The surface quality is the basis of cold resistance!"

"Thirdly, our billet rolling mill adopts the newly designed Longguo rolling mill with high rigidity, hydraulic balance and axial adjustment functions. Rail rolling mill....."

"The intermediate billet produced by it, steel billet, will have extremely high dimensional accuracy!"

Snapped.