Chapter 1203

He Chengxin was speechless by this question. In addition, he was staring at him with this kind of eyes. He quickly explained: "no, boss! Our spaceship laboratory has considered this point when putting forward this demand!

After the completion of the 1 million ton die forging hydraulic press, at least it can guarantee the high-end forging demand of our company within 5 years, because even if we have completed the final design draft of the second generation spaceship and started construction, it does not mean that we have the ability to start the design and construction of the third generation spaceship.

Not to mention that we have just completed the preliminary overall design work of this second generation spaceship, and it will be at least one year before we can start construction.

At present, the related technologies used on the second generation spaceship are approaching to the technical upper limit of the company for a period of time. Before the relevant technologies have made a qualitative breakthrough, even if we can carry out the design work of the third generation spaceship, it can only be design. We don't know when the construction work can start.

In fact, the pressure demand of the second generation spaceship for the die forging hydraulic press is only 850000 tons, which is enough. We have an advance consideration for the company to build a 1 million ton die forging hydraulic press.

Even if we upgrade the size and technology of the second generation spaceship in the later stage, it will definitely not exceed the pressure demand level of 1 million tons. After all, there are limits to related technologies.

Before the technology of the third generation spaceship is broken through, we don't have this demand on our side. We just don't know whether other laboratories will have such needs. "

"What do you think! The company has the highest demand for die forging hydraulic press in your spaceship laboratory. As long as you don't need it, other laboratories certainly don't need it! " Kong Yu laughed and make complaints about it.

Everyone, including Lei Tiantang, was amused by his statement, but what he said was also true. Even for the nuclear fusion reactor laboratory with extremely high requirements on the main structure strength, the company's existing 500000 ton die forging hydraulic press is absolutely enough.

And other products of the company generally use 250000 tons of die forging hydraulic press are particularly pursuit of performance, not to say that the better the pressure when forging, you also have to consider the difficulty and cost of subsequent processing of parts.

Therefore, only the spaceship laboratory with the highest performance requirements will have a particularly rapid increase in the pressure demand of die forging hydraulic press. Other departments do not have such a strong demand.

"It is not only our own second generation spaceship that has demand for this level of die forging hydraulic press. The military spaceship research project cooperated by the company and the state also needs this tonnage of die forging hydraulic press!

After all, the military's requirements and standards for military spaceships are different from our own civilian spaceships. Even though our company's performance requirements for our own spaceships are very strict, we still adopt civil standards fundamentally.

For us, if we adopt military standards, the manufacturing and use costs of spaceships will rise. Moreover, if we design spaceships according to military standards, such spaceships will not be convenient for civil use.

Because the space utilization rate and comfort degree of spaceships manufactured by such design standards will be very different. Obviously, such standards are not suitable for our company, especially the space tourism projects of our company.

But for the military, the requirements for the strength and performance of spacecraft must be very strict. It is obviously impossible to use our own standards to manufacture the main structure.

If the main structure of the spaceship is strong enough, it must be forged by a higher tonnage die forging hydraulic press. Therefore, there is a demand for this big guy that the company is going to build in the future. At that time, our investment will certainly be able to earn back! " He Chengxin throws out a new explanation.

People in the conference room can still accept his statement. The company has cooperated with the military to develop various military equipment for many times. We all know the requirements and standards of the military. There is no problem with the reason why he is honest.

The requirements for military products are absolutely different from those for civilian products. Civilian products can be used directly. But for the military equipment, we must consider many physical problems such as earthquake resistance, shock resistance, overload resistance, electromagnetic radiation resistance, electronic interference resistance, fire prevention, etc.

Let's compare the familiar ocean ships. Civil ships and warships have different requirements for their hulls.

Warships usually use thin high-strength low-alloy steel, but the price of this kind of steel is not only very high, but also very difficult to weld. Therefore, civil ships generally use thicker plates to ensure sufficient rigidity and reduce cost.

Therefore, the steel used for civil ships and warships are different. The yield strength of steel for ordinary civil ships is 200-300 MPa, while that for destroyer class is 500-600, which is even higher for aircraft carrier submarines.In the same way, if the spaceship is replaced by a spaceship, even if the main structural material of the spaceship is the same, the military spaceship should also use more stringent standards in terms of forging strength. Only in this way can the performance of the spaceship reach the military standard.

I believe you all know that the crew of an oil tanker with hundreds of thousands of tons is only dozens of people, and the Navy's destroyer is less than 10000 tons, with hundreds of crew members. The speed of commercial ships is generally not high, which is about 14-17 knots. During World War II, the speed of most battleships to destroyers has exceeded 30 knots.

In order to make the ship sail faster, the structural strength of both the hull and the power system must be strong enough. The requirements of military spacecraft for flight speed and stability are also very high, all of which are inseparable from more powerful manufacturing technology.

From the manufacturing accuracy requirements of warships, the dimensional accuracy of warships is at least one order of magnitude higher than that of civil ships. The rotor unbalance of warship engine is designed according to the aeroengine standard, and the allowable precision is 4-5 orders of magnitude higher than that of civil ships!

Moreover, warships need to integrate a large number of equipment in a very narrow space: machinery, weapons, control systems, radar, damage control, circulation, communication, living equipment and many other problems, the difficulty is obvious.

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