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Chapter 200 Sleepless Night

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    In the five-axis automatic machining center, the tool completed the last cutting operation, and was slowly recovered and returned to its position under the control of the control component.  Zou Yongdong opened the sealed tempered glass cover and took out the processed small engine cylinder.  On the trolley next to you, there are five identical cylinders.  The surface of the cylinder that has been processed through three processes is smooth and shiny. You can hardly feel the lines left by the tool when you touch it. It is rounder than many workpieces that still need to be polished.  "This is the eleventh one today, so I'll push these to be polished first. When you're done, put them aside and I'll collect them later!" There was a sound of footsteps, a technician from Guan Fei Laboratory  When I came closer, I happened to see him taking off the engine cylinder that had been processed. He immediately said with joy and prepared to push the car away.  "Okay!" Zou Yongdong was as taciturn as ever, just focusing on his work. After humming, he continued to pick up a piece of metal blank and prepared to process the next cylinder.  "By the way, there is a war on the front line. The commander asked us to prepare more and do as much as we can. So you should work harder these days and try to do fifteen!" The technician was about to leave when he suddenly stopped.  Turning back to face him seriously.  "Got it!" Zou Yongdong nodded, indicating that he received it.  ¡°He didn¡¯t just plan to finish fifteen cylinders and call it a day.  Since the commander asked them to reserve more, they should make as much as possible.  He calculated that he could do seven or eight more before twelve o'clock in the evening.  Anyway, a lot of the work is done by the machine tool itself, so I¡¯m not tired at all, so I might as well keep doing it.  The radio station has been broadcasting news of the victory on the front line for the past two days, which shows that everyone is working hard, so here, there is no chance of falling behind!  He quickly installed the blank in place, carefully measured the position, then closed the explosion-proof door, pressed the start button, and started processing. ?¡­ ?The technician pushed the trolley to the honing workshop in the upper right corner of the workshop.  It is said to be a workshop, but it is actually an integrally sealed honing machine. The inside is completely sealed, and the cleaning operations and movement of the machine parts are all automated.  The operator only needs to fix the workpiece waiting for honing with a fixture, achieve precise positioning through internal laser measurement, electronic measurement, and optical measurement devices, and then input the program to perform automatic honing operations.  During this time, everyone is rushing to make drone engines. All data has been entered and no adjustment is needed.  The technician fixed the cylinder, pressed the button, the base automatically retracted, and the dust-proof glass cover also closed automatically.  In this era, laser measurement devices, optical devices, and electronic measurement equipment are still too large. If placed outside, they will take up space and be easily knocked askew by passing people, vehicles, and objects.  Therefore, it is integrated with the honing machine and enclosed with a shell. This can also reduce light and electromagnetic interference and improve measurement accuracy.  At the same time, it can also prevent dust and moisture, extending the service life of the equipment.  The honing operation is much simpler and more reliable than the process in the machining center. After turning on the processing switch, he loaded the honed cylinder on the trolley, pushed the trolley out of the workshop, and entered the heat treatment workshop on the right side of the laboratory building.  In addition to traditional heat treatment furnaces, there are also various heat treatment equipments such as high frequency furnaces, medium frequency furnaces, salt bath nitrocarburizing furnaces, gas nitrocarburizing furnaces and other self-made ones led by Guan Fei.  Heat treatment is a process that uses high-temperature molecular motion to change the internal metallographic structure of metal parts to make the internal stresses consistent, or to make specific locations more tightly bonded to improve a certain characteristic.  In modern heat treatment, it has been further developed to add a certain proportion of other elements to the metal by spreading carbon powder or other materials and placing them in a high-pressure nitrogen-containing treatment furnace during heat heating to improve the surface of the metal parts.  Strength, wear resistance, impact resistance and other properties.  The engines they processed are radial piston structures from the World War II period, and the strength requirements are not too high.  Moreover, the processed metal ingots are special alloys smelted by the military divisions themselves, which are better than the aero-engine materials currently used in foreign countries. There is no need for complicated heat treatment strengthening at all.  So the technician just sent the cylinder to the high-frequency and high-pressure nitriding and carburizing furnace, and after handing over to the other party, he went back to do his own thing.  The heat treatment workshop has performed hundreds of heat treatments on a large number of cylinders of the same model during this period, and it understands how to handle this batch of cylinders.  They opened the high-frequency furnace, placed the cylinders on the high-temperature ceramic chassis as required, then closed the furnace door and pressed the start switch.  The biggest feature of Guan Fei's own laboratory is that it has a very high degree of automation. Any process that he thinks can be automated will be modified by him.  ?Even if the researchers and technical workers in the laboratory are not the best, they can stably complete the processes they are responsible for while ensuring quality.  After the gas in the high-frequency furnace is evacuated, the nitrogen gas is injected until the pressure in the furnace is increased to ten MPa.  ¡°Then the high-frequency unit starts working and performs electromagnetic resonance on the ceramic plate where the workpiece is located. The surface temperature of the workpiece rises to over a thousand degrees within ten seconds.  Under the huge pressure of ten MPa in the furnace, nitrogen begins to slowly penetrate into the surface of the workpiece. At the same time, carbon powder begins to be sprinkled in the furnace. Some of the carbon powder adheres to the surface of the workpiece and fuses with the metal on the surface of the workpiece under high temperature and high pressure to form a thin layer.  With a high-layer carbon shell, the stiffness becomes even higher.  Throughout the entire automatic operation, measuring equipment such as gas detectors and infrared detectors built into the high-frequency furnace are also monitoring internal changes at any time and transmitting relevant data back to the processor.  The processor compares these data with the required temperature, air pressure, and toner amount, and controls the electromagnetic unit and the speed of toner release extremely finely to keep nitriding and carburizing within the allowable error.  The high-frequency furnace can only perform surface heat treatment on the workpiece and cannot penetrate deep into the interior, so it ends very quickly. The nitriding and carburizing operation was completed after half an hour, and the temperature and pressure began to decrease slowly.  The physical indicators of this batch of cylinders are already very good and do not require too high a heat treatment process.  The heat-treated cylinder, together with the piston, sleeve and other workpieces sent for heat treatment, are sent to the assembly workshop for assembly.  Here, there are a large number of bearings, connecting rods, gears, concave and convex teeth and other parts that have been processed in various processes. Each one is shining like a work of art.  More than a dozen technicians were so busy that they counted the number and variety of parts sent from the heat treatment workshop without raising their heads. They sketched them on the handover list, signed their names, and immediately sent the batch of parts over.  Others quickly gathered around and assembled it together with other parts.  On the trolley on one side, there are more than twenty pocket-sized piston engines that have been assembled and passed the inspection.  The heat-treated parts are being received here, and people from the assembly shop came. They completed the handover with the assembly team resolutely, and then pushed the assembled engine quickly and sent it for final assembly.  The number of people surrounding the assembly workshop was actually smaller than that of the engine assembly group, with less than ten people.  But these ten people included multiple groups such as aircraft models, engines, electrical controls, and navigation. They gathered around the assembly table, stepped forward in an orderly manner, and each completed their own assembly work.  But unlike the assembly of unmanned reconnaissance aircraft, the ******** assembled this time did not install cameras, cameras and other reconnaissance equipment.  Every time other teams complete the assembly, they will use a battery trolley to pull the drone out of the workshop and send it to a five-meter-deep cement pit.  ¡°Then the staff carefully placed a steel box that was fifty centimeters long, thirty centimeters wide, and fifteen centimeters high into the internal space of the machine body and fixed it with screws.  Then use a plug strip, connect one end to the control panel, and plug the other end into the socket on the side of the steel box.  When he inserted the control cable, everyone else hid outside the cement pit, as if there was a man-eating beast hidden underneath.  The staff member who installed the steel box was also very careful, making every move the slowest and gentlest, for fear that a wrong operation would cause the steel box to explode.  That¡¯s right, this steel box is filled with high explosives, and there are thousands of steel balls embedded in the interlayer.  They have tested that the shock wave from the explosion of this steel box can cover hundreds of meters, and the steel balls in the sandwich can even fly a kilometer away and penetrate a tree trunk ten centimeters in diameter!  "If this guy accidentally detonated it, he wouldn't even be able to keep his whole body alive. How could he face a powerful enemy!"  Although it was just a simple task of placing the steel box into the belly of the machine, fixing it, and inserting the ignition cable, every move he made was extremely gentle, even gentler than to his own wife.  After completing the entire installation work, he was sweating profusely. After confirming again and again that the steel box was firmly fixed and would not shake or fall off, he breathed a sigh of relief and closed the belly cover.  screw.  After he came out from below, others entered the pit and used battery trucks to pull the drone up. Several technicians ran back and forth to clear the stones blocking the road ahead.  I was afraid that this terrible guy would accidentally explode due to bumps.  Although everyone knows that it is very reliable, many tests have proved that the charge inside is very stable. If it is not detonated by electricity, it will not explode even if it is hit with a hammer.  The circuit is equally reliable and has not had a single malfunction so far.    However, everyone is still afraid!  This thing is so powerful. Even if they know it is okay, when they think of the large crater that is about ten meters wide and two meters deep after the explosion, everyone keeps away from it.  Besides, even if it's not within its explosion range, everyone doesn't want to be riddled with holes by thousands of steel balls and turn into a pile of rotten flesh.  The tractor towed the drone to a cement square at a speed slower than walking.  Here, more than fifty identical drones have been parked. In order to prevent them from exploding, four reinforced concrete walls two meters thick and twelve meters high were built around them for protection.  There is only a ten-meter-wide door on the protective wall. The door is made of a meter-thick steel plate, and rollers are installed underneath to slide it left and right. However, if it is not driven by an electric motor, it cannot be pushed by human power alone.  More than ten tons of steel doors. ?¡­ ?The sky is gradually turning dim, and it¡¯s almost dark.  The military division headquarters was empty. The main force followed Guan Fei to fight on the outside. The three remaining battalions also went to Longkang, Kangka, and Guogen to set up defenses. There was only one guard company in the entire camp.  The spacious training ground no longer had the bustling scenes of people shouting and neighing, and the upper floors of the three-story barracks of each company and battalion were closed.  The lights in the camp began to light up one after another, and the second company of guards stationed at the headquarters ran into the training ground with their guns loaded.  Under the orders of the squad and platoon leaders at all levels, the soldiers quickly spread out to both sides around the wide main road in the camp, retreated 200 meters away, and set up a cordon to prevent anyone from approaching.  Today is destined to be a sleepless night.  This is true both for the enemy and for military divisions
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