Vol 2 Chapter 1215: Military-grade spacecraft are also needed!

He Chengxin was also speechless when asked by this question. In addition to being stared at by everyone with this kind of eyes, he quickly explained: "No boss! Our spacecraft laboratory considered this request when it was raised. That's it!
After the construction of the 1 million-ton hydraulic die forging press is completed, it can at least guarantee our company’s high-end forging needs within 5 years, because even if we have now completed the final design draft of the second-generation spacecraft, construction has begun. , That does not mean that we are capable of starting the design and construction of the third-generation spacecraft.
Not to mention that we have just completed the preliminary overall design work for this second-generation spacecraft, and it will take at least a year or so before construction can actually begin.
The related technology used on the second-generation spacecraft is currently about to reach the company’s technical upper limit for some time. Before the related technology has achieved a qualitative breakthrough, even if we can carry out the third-generation spacecraft next It can only be design work. I don’t know when the construction work can start.
In fact, our current second-generation spacecraft’s pressure demand for die forging hydraulic presses is only 850,000 tons, which is enough. We have an advance amount for the company to build 1 million tons of die forging hydraulic presses. Considered.
Even if we upgrade the size and technology of the second-generation spacecraft in the later period, it will never exceed the pressure demand level of 1 million tons. After all, related technologies have limits.
Before breaking through to the technology of the third-generation spacecraft, there is no need for this on our side, but I don’t know if other laboratories will have this need. "
"What do you want! The whole company has the highest pressure demand for die forging hydraulic press in your spacecraft laboratory, OK? As long as you don't need it, other laboratories will definitely not need it!" Kong Yu smiled and couldn't help laughing. Spit out loudly.
Everyone, including Lei Tiantang, was amused by his statement, but what he said is also true. Even for a nuclear fusion reactor laboratory that requires the same high strength of the main structure, the company’s existing 500,000 tons A grade hydraulic die forging press is absolutely sufficient.
Generally speaking, the 250,000-ton hydraulic die forging hydraulic presses of the company’s other products are particularly in pursuit of performance. It is not that the better the pressure during forging. You also have to consider the difficulty and cost of subsequent processing of parts. of.
Therefore, it is true that only the spacecraft laboratory with the highest performance requirements will increase the pressure demand of die forging hydraulic presses particularly fast, and other departments do not have such a particularly strong demand.
"It's not that our company's own second-generation spacecraft has a demand for this level of die forging hydraulic press. The military spacecraft research project that the company and the country cooperated also needs this tonnage of die forging hydraulic press!
After all, the military’s requirements for military-grade spacecraft are not the same as our own civilian spacecraft. Even our company has very strict requirements for the performance of our spacecraft, but fundamentally we still use Civil standards.
For us, if military standards are adopted, the cost of manufacturing and use of the spacecraft will rise, and if we design spacecraft in accordance with military standards, it is not convenient for such a spacecraft to be used for civilian purposes.
Because the space utilization and comfort of the spacecraft manufactured by adopting such design standards will be very different, such standards are obviously not suitable for our company, especially the company's space tourism projects.
But for the military, the requirements for the strength and performance of the spacecraft must be very strict. It is obviously not feasible to use our own standards to manufacture the main structure.
If the main structure of the spacecraft is strong enough, it must be forged by a higher-tonnage die forging hydraulic press. Therefore, the big guy that the company plans to build in the future will also be in demand here, and we will definitely invest in it. You can still earn it back! "He Chengxin offered a new explanation.
For his statement, everyone in the conference room is still acceptable. The company has cooperated with the military to develop various military equipment for many times. Everyone understands the military's requirements and standards. What is the reason for integrity? There is no problem.
The requirements for military products and civilian products are absolutely different, and civilian products can be used directly after they are connected. But for military equipment, it is necessary to consider many physical issues such as earthquake resistance, impact resistance, overload resistance, electromagnetic radiation resistance, electronic interference resistance, fire prevention...etc.
Let's compare it with the more familiar ocean ships. The requirements for the hull of civil ships and warships are very different.
Warships generally use relatively thin high-strength low-alloy steel ~EbookFREE.me~ But the price of this steel is not only particularly high, but also difficult to weld, so civilian ships generally use thicker plates to ensure sufficient rigidity and lower cost.
Therefore, the steel used in civil ships and warships is different. The yield strength of ordinary civil ship steel is 200-300 MPa, while the destroyer class will reach 500-600, and the aircraft carrier submarine is even higher.
Similarly, if it is replaced with a spacecraft, even if the main structural material of the spacecraft is the same, the military spacecraft must use more stringent standards for forging strength. Only in this way can the performance of the spacecraft meet military standards.
I believe everyone knows that a tanker with hundreds of thousands of tons has only a few dozen crew members, and a navy destroyer is less than 10,000 tons, and the crew is only a few hundred people. The speed of merchant ships is generally not high, 14-17 knots are almost the same. During World War II, the speed of most battleships to destroyers exceeded 30 knots.
If you want the ship to sail faster, both the structural strength of the hull and the structural strength of the power system must be strong enough. The military-grade spacecraft also have extremely high requirements for flight speed and stability, and all of these are also inseparable from more powerful manufacturing processes.
In terms of the manufacturing accuracy requirements of warships, the dimensional accuracy of warships is at least an order of magnitude higher than that of civil ships. The rotor imbalance of warship engines is designed in accordance with aero engine standards, and its allowable amount accuracy is higher than that of civil ships by 4-5 orders of magnitude!
Moreover, a warship has to integrate a large number of equipment in a very narrow space: machinery, weapons, control systems, radars, damage pipes, circulation, communications, life equipment and many other problems, the difficulty is obvious.
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