In the five-axis automatic machining center, the tool completes the last cutting operation, and is slowly retracted and returned to its position under the control of the control component. Pen % fun % Pavilion www.biquge.info

Zou Yongdong opened the sealed tempered glass cover and took out the processed small engine cylinder.

On the trolley next to him, there are five identical cylinders. The surface of the cylinder, which has been processed in three processes, is smooth and shiny, and the texture left by the tool is almost imperceptible to the touch, and it is more rounded than many workpieces that have been polished.

"This is the eleventh one of today, so I'll push it to do honing first. Later, you will put it aside first, and I will collect it later" The sound of footsteps, a technician from the Guan Fei laboratory came to the front, just in time to see him remove the processed engine cylinder, immediately said happily, and was ready to push the car away.

"Good"

Zou Yongdong was still as silent as ever, just focused on his work, and with a sigh, he continued to pick up a piece of metal blank and prepare to process the next cylinder.

"By the way, there is a war going on on the front line, and the commander told us to prepare more and do as much as we can. So you have to work hard these days, and strive to be able to do fifteen," the technician was about to leave, suddenly stopped, turned back to him and said seriously.

"Got it" Zou Yongdong nodded, indicating that he received it.

He wasn't just going to call it a day after fifteen cylinders. Since the commander has asked them to reserve a lot, let's do as much as possible. He calculated that by twelve o'clock in the evening, he would be able to do seven or eight more. Anyway, a lot of the work is done by the machine itself, so it's not tiring at all, so just keep doing it.

The news of the victory on the front line has been broadcast on the radio for the past two days, which shows that everyone is working hard, so with him, he can't drop the chain

He quickly installed the blank in place, carefully measured the position, then closed the blast door, pressed the start button, and began processing.

The technician pushed the trolley to the honing workshop in the upper right corner of the workshop.

It is said that it is a workshop, but in fact it is an integrally sealed honing machine, the inside is completely sealed, and the cleaning operation and the movement of the parts are all automated. The operator only needs to fix the workpiece waiting for honing with a fixture, realize accurate positioning through the internal laser measurement, electronic measurement, and optical measurement devices, and then enter the program to carry out automatic honing operation.

During this time, everyone was rushing to make the drone engine, and all the data was entered and did not need to be adjusted.

The technician fixes the cylinder, presses the button, the base automatically retracts, and the dustproof glass cover also closes automatically.

In this era, laser measuring devices, optical devices, and electronic measuring equipment are still too large, and if they are placed outside, they will not only occupy space, but also be easily touched by passing people, vehicles, and objects. Therefore, it will be made as a whole with the honing machine and closed with a shell, which can also reduce light and electromagnetic interference and improve the measurement accuracy.

At the same time, it can also play a dustproof and moisture-proof role to prolong the service life of the equipment.

The honing operation is much simpler than the process of the machining center, and it is much more reliable, after he starts the processing switch, he loads the cylinder that completes the honing on the trolley, pushes the trolley out of the workshop, and enters the heat treatment workshop on the right side of the laboratory building.

In addition to the traditional heat treatment furnace, there are also a variety of heat treatment equipment such as high-frequency furnace, intermediate frequency furnace, salt bath nitrogen-carbon-borough co-infiltration furnace, gas nitrogen-carbon-boron co-infiltrating furnace, etc.

Heat treatment is the treatment of using high-temperature molecular movement to change the internal metallographic structure of metal parts to make the internal stresses tend to be consistent, or to make specific positions more tightly bound 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 sprinkling toner or other materials and placing it in a high-pressure nitrogen-containing treatment furnace when the heat rises, so as to improve the surface strength, wear resistance, impact resistance and other characteristics of metal parts.

The engines they processed were themselves World War II-era star-shaped piston structures, and the strength requirements were not too high. In addition, the processed metal ingots are special alloys smelted by the military divisions, which are better than the current aero engine materials used abroad, and there is no need to do too complex heat treatment and strengthening.

So the technician just sent the cylinder to the high-frequency and high-pressure nitriding and carburizing furnace, and went back to do their own thing after handing over to the other party.

During this time, the heat treatment workshop has done hundreds of heat treatments on a large number of cylinders of the same type, and understands how to deal with these cylinders. They turned on the high-frequency furnace, placed the cylinders on the high-temperature ceramic chassis as required, closed the furnace door and pressed the start switch.

The biggest feature of Guan Fei's own laboratory is that the degree of automation is very high, and everything he thinks can be automated in a certain process has been transformed by him. Therefore, even if the researchers and skilled workers in the laboratory are not the best, they can complete the processes they are responsible for stably on the basis of ensuring quality.

After vacuuming the high-frequency furnace gas, nitrogen gas is injected until the air pressure in the furnace is increased to 10 megapascals.

Then the high-frequency unit began to work, and the ceramic disc where the workpiece was located was subjected to electromagnetic resonance, and the surface temperature of the workpiece was raised to more than 1,000 degrees in ten seconds. Under the huge pressure of 10 megapascals in the furnace, nitrogen began to slowly penetrate into the surface of the workpiece, and at the same time, the furnace began to sprinkle toner, part of which adhered to the surface of the workpiece, and fused with the metal on the surface of the workpiece under high temperature and high pressure to form a thin layer of high-carbon shell, and the stiffness became higher.

Throughout the automatic operation, the gas detectors, infrared detectors and other measuring devices built into the high-frequency furnace are also monitoring internal changes at all times 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 at which the toner is released in a very subtle way, keeping the nitriding and carburizing within the allowable error.

The high-frequency furnace can only heat treat the surface of the workpiece, and cannot penetrate deep into the interior, so it ends quickly, and the nitriding and carburizing operation is completed after half an hour, and the pressure is slowly lowered and reduced.

The physical indicators of this batch of cylinders are already very good, and they do not need too high heat treatment processing.

The cylinder, the piston, sleeve, and other workpieces that have been heat-treated are sent to the assembly hall for assembly.

Here, there are a large number of parts such as bearings, connecting rods, gears, and concave and convex teeth that have been processed by each process, and each one is shiny like a work of art.

More than a dozen technicians were so busy that they counted the number and variety of parts sent by the heat treatment workshop, sketched them on the handover list, signed their names, and immediately sent the parts over. Others quickly gathered around and assembled it along with other parts.

On one side of the trolley, there are more than 20 pocket-sized piston engines that have been assembled and tested.

The heat-treated parts were being received here, and the assembly workshop came, and they vigorously completed the handover with the assembly team, and then pushed the assembled engine to be sent to the final assembly quickly.

In fact, there are fewer people in the final assembly workshop than in the engine assembly team, less than ten people.

However, these ten people, including aircraft models, engines, electrical control, navigation and other teams, gathered around the assembly table, stepped forward in an orderly manner, and completed their own assembly work.

However, unlike the unmanned reconnaissance aircraft, this time there was no reconnaissance equipment such as cameras and cameras. Each time the other teams finished assembling it, they towed the drone out of the workshop with a battery trolley and into a five-metre-deep cement pit.

Later, the staff carefully put a steel box 50 centimeters long, 30 centimeters wide, and 15 centimeters high into the internal space of the fuselage and fixed it with screws. Then use a patch strip, one end is connected to the control panel, and the other end is plugged into the socket on the side of the steel box.

As he plugged in the control line, all the others hid outside the cement pit, as if a devouring beast was hiding underneath.

The staff who installed the steel box was also very careful, and every movement was put to the slowest and gentleest, for fear that a misoperation would detonate the steel box.

That's right, this steel box is full of high-explosive charges, and thousands of steel balls are embedded in the interlayer.

They have experimented that the shock wave of the explosion of this steel box can cover hundreds of meters, and the steel balls in the interlayer can even fly up to a kilometer away and penetrate a tree trunk with a diameter of ten centimeters

If this guy accidentally detonates, he won't even be able to leave a whole corpse, how can he be inferior to the enemy

Although it was just a simple task of inserting the steel box into the belly, fixing, and inserting the ignition cable, every movement he made was extremely gentle, even more gentle than his own daughter-in-law. After completing the entire installation work, he was already sweating profusely, and after repeatedly confirming that the steel box was firmly fixed and would not shake or fall off, he breathed a sigh of relief, closed the belly cover, and put on the screws.

When he came out from below, the others entered the pit and towed the drone with a battery car, and several technicians ran forward and backward to remove the stones blocking the road in front of them. I'm afraid that because of the bumps, this terrible guy will accidentally explode.

Although everyone knows that it is very reliable, many tests have proved that the charge inside is very stable, and if it is not detonated by electricity, even if it is smashed with a hammer, it will not explode. The circuit is just as reliable, and there has not been a single malfunction so far.

However, everyone is still afraid

The power of this thing is too great, even if you know in your heart that it is okay, but when you think of the crater formed after the explosion, which is more than ten meters wide and two meters deep, everyone respects it and stays away. Besides, even if it is not within the range of its explosion, everyone does not want to be hit by thousands of steel balls and turned into a pile of rotten meat.

The tractor towed the drone to a concrete square at a slower speed than walking.

Here, more than 50 identical drones have been parked, and in order to fear that they will explode, they have built four reinforced concrete walls two meters thick and twelve meters high around them to protect them. There is only a ten-meter-wide door on the protective wall, which is made of steel plates more than one meter thick, and rollers are installed below to slide open left and right, but if it is not driven by an electric motor, the steel door weighing more than ten tons cannot be pushed by manpower alone.

It was getting dark, and it was getting dark.

The headquarters of the military sub-district was empty, and the main force jumped to the outer line with Guan Fei to fight, and the three battalions left behind also went to Longkang, Kangka, and Guogen to fortify, and there was only one guard company in the entire battalion.

The wide training ground was devoid of the lively scene of people shouting and neighing in the past, and the windows on the upper floors of the three-story barracks of each company and battalion were closed.

The lights in the camp began to turn on one after another, and the second company of guards stationed at the headquarters loaded their guns and ran into the training ground. Under the orders of squad and platoon commanders at all levels, the soldiers quickly dispersed on both sides with the wide main road of the camp as the center, retreated to a distance of 200 meters, and pulled 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 the corps