Chapter 2232: All scrap

The large-scale CNC milling machine is running, and the countless blades are turning flexibly, drawing beautiful arcs on many axis surfaces.
The blade is constantly moving, while the workpiece is rotating inside. A long copper wire is cut out. The copper wire extends outward, like a mischievous wild cat playing with a ball of thread.
Inside, the shapes of the blades are gradually revealed, but the shape of this blade is very large. This is a super marine propeller with a diameter of five or six meters!
At the beginning, it was a whole piece of copper, and only a copper alloy could become a qualified propeller.
After all, the propeller operates under water. The seawater is salty and corrosive. To adapt to the long-term operation in the highly corrosive environment of seawater, pure steel cannot be used because it cannot withstand long-term corrosion. A special copper alloy. Pure copper is soft. This is also the material of the cartridge case. If metals such as manganese and nickel are added to the copper, the rigidity of the alloy can be improved, which can meet the needs of the propeller.
The casting of a whole piece of copper is a difficult point. However, the later processing is even more difficult. The propeller is a complicated curved surface. If you use an ordinary milling machine to operate it, first process one surface and then process the other surface. , You have to change the fixture. When changing, there will be an error. Although this error is not large, it is enough to bring a fatal impact to the propeller that strives for excellence. It will increase the underwater noise. Especially for submarines, it must be silent.
Fortunately, with this advanced CNC machine tool, multi-axis linkage, after the copper block is fixed, it will no longer move. The turning tool rotates on multiple axis surfaces, gradually cutting out a copper block and turning it into a propeller. shape.
It takes three days to cut a huge copper block into a propeller. This is already very fast. When there was no such processing equipment before, it took more than 30 workers and half a month to cut it out. With a small propeller, the accuracy is not guaranteed.
The propeller used by the submarine is multi-blade and sloping. The shape that can be seen now is like a handful of Turkish scimitars. Now processed, it has nine blades, and the total weight is hundreds of tons!
"Okay, processing is complete!" Finally, among the metal debris on the floor, the machine stopped moving, and the processing of the propeller was completed!
"Wait, there seems to be something wrong?" Just as the propeller was about to be transferred, a worker shouted: "Why is its surface so rough?"
After the propeller is processed, the surface is extremely smooth. These are all for reducing noise. Now it is rough. Can it be polished? Of course not. A little manual polishing will definitely not be able to maintain the original balance, which will increase the vibration.
The foreman was also puzzled. Could it be that there was a problem with the turning tool during processing? No, the turning tool has been reground, so there is absolutely no problem.
"Its shape is not up to standard!"
The processing of the propeller is very precise. Professional instruments are used to check whether the shape is qualified. But now, professional workers can see with the naked eye that its shape is defective. The end of the machete is too curved. It's straightforward, it's not the style of design at all!
"Our processing was in vain. This is a waste product." The foreman's face suddenly became ugly. The propeller was cut out of a few hundred tons of copper. Now, all of them are scrapped!
How could this be?
"Look for an engineer immediately, find an engineer to check!"
Soon, Xiong Guo's engineers came to inspect. They checked countless times inside and out, and vowed to guarantee that there would be no mistakes.
As a result, I clamped the copper block again and started to cut, and the shape was even more stunning, and the propeller became a figure eight! The error is even bigger!
Everyone is pale. This situation has never happened before. What does this show? The failure of the machine tool is too great, you must find a manufacturer to repair it!
"Contact Han Guo and ask them to fix it!"
For submarines, the silent performance is the first. Among them, the most noisy is the propeller. It rotates and directly contacts the sea water. The sound of stirring the sea water spreads far away. Therefore, Xiong Guo took a lot of effort to introduce With this kind of processing equipment, noise is reduced at once.
Now, this kind of machine is broken and can't be used anymore!
The same situation is happening elsewhere.
The key to processing flat-slot radar antennas is the position and size of the slits. It must be completely accurate. Xiong Guoren can't make the slits accurately.
Is it difficult to make a slit?
Of course, it is certainly not difficult to carve slits in the wooden board. How about carving slits in the dough? Carve a gap in the wings of insects, try it? The most difficult waveguide component layer is large in size, high in accuracy, and complex in structure, and there are a large number of weak rigid structures such as thin walls, ultra-thin webs, and micro vias. The biggest problem is that the processing is easy to deform and the accuracy is difficult to guarantee.
You can slot, but when slotting, it is destroyed immediately. This kind of delicate work is the least good at Xiong Guoren.
Now, Han Guo has provided them with a complete production process, and the Han Guo people also use this set of equipment to produce a fully qualified flat antenna!
A slender turning tool went down, cutting the gap, and after the cutting passed, I saw a shallow mark left on it, which was not cut through at all!
"Increase the intensity!"
The second time, finally, the turning tool suddenly penetrated the film made by the salt bath process. The moment the turning tool cut the gap, the entire film layer was driven, like a window grille. Being ripped up in general.
"Damn it, what's the matter?"
Various attempts were made on the production line, but no matter what they did, they could not produce qualified products! If they want to continue production, they have to ask Han people to debug them!
All departments, all departments that require equipment from Han to operate, are now unable to produce normally. By this time, they finally realized that this scene was definitely not accidental, nor was it that their own engineers did not care, but Han Chinese people must have moved their hands and feet in these devices!
The people of Xiong were stunned at once. They thought that they don’t need Han people anymore. They can increase the price to cheat them. After all, Han’s industry has not developed for a long time, and there are still many things that cannot be produced on their own, so they need more money. I have to accept it. How can I know that the Han people have no reaction on the surface, but secretly they have crippled all these things!