In the original time and space, the casing technology was invented by the French before World War I, because this technology was too simple, and it didn't even need the stunt of the later generations of Chitu to get pregnant at a glance. Of course, in this time and space, this kind of crazy simple technology was first developed by Scrooge's MacDonald Infantry Weapons Company, and then the whole world followed suit.

"Always imitated, never surpassed." This classic phrase can really be used on the guns of the McDonald Infantry Weapons Company. Because they quickly developed the self-tightening technique, which is not something that can be learned at a glance.

There are three types of body tube self-tightening techniques: extrusion self-tightening, explosion self-tightening, and hydraulic self-tightening. Extrusion self-tightening is to use an extrusion rod slightly thicker than the inner diameter of the barrel to squeeze it into the barrel blank drilled (do not make bad associations), at this time the entire barrel blank will produce a certain deformation, which has both elastic deformation and inelastic deformation. Generally speaking, the closer to the inside, the more likely it is to produce inelastic deformation, and the more lateral the part, the more recoverable the deformation is elastic deformation. When the extrusion rod is withdrawn, when the barrel blank shrinks due to elasticity, the outer layer of steel can shrink normally, but the inner layer cannot shrink because of more inelastic deformation, so the whole barrel naturally forms a prestress of inward extrusion.

As for hydraulic self-tightening and explosive self-tightening, the principle is the same. Hydraulic self-tightening is to introduce high-pressure liquid into the barrel blank to expand the barrel. Compared with the extrusion type, the hydraulic pressure is balanced, easy to control, and the yield is also higher, of course, the equipment involved is relatively more complex. The one-time investment is naturally higher, but in terms of development prospects, this technology is relatively more advantageous. So McDonald Infantry Weapons Company only did a little research on the squeeze method, and the focus was on the hydraulic type.

When he went out, on the issue of technology transfer, Scrooge and Donald had to deal with each other. Scrooge knew that the Germans would be asking for MacDonald's self-tightening technique. Scrooge believes that if the price is right, it is not that this technology cannot be sold, but the Germans must make some guarantees:

First of all, for twenty years from now, no artillery using this technology can be sold or transferred in any way to other countries. Otherwise, each artillery gun must pay compensation to McDonald Infantry Weapons Company for not less than fifty percent of the price of the same product of MacDonald. The scope of this provision includes gratuitous military assistance. (Exception to the understanding of the MacDonald Infantry Weapons Company)

The second is that this technology is only for German use, and from now on, Germany will not transfer this technology in any way to any other country or group, as well as other similar technologies developed on the basis of this technology, for the manufacture of body tube prestressing to improve the performance of artillery for twenty years.

In addition, Scrooge did not intend to sell the hydraulic tube self-tightening technology he was currently using to the Germans, he intended to sell the Germans with the extruded tube self-tightening technology. Of course, this technology is also feasible, and it is easier and more convenient to use in small-caliber artillery than hydraulic self-tightening. But when used in large-caliber artillery, the effect will be deducted, and more importantly, because of some problems such as operation and other problems, it is likely to bring a series of problems such as a sharp decline in the yield of finished products. Of course, it's not that it can't make a qualified barrel, but in this way, the manufacturing cost will be much higher than that imported from the United States. Of course, if the Germans ask about the yield rate, it can also be excused that the Germans' own operating skills are not up to par or something. And then, according to the character of the Germans, it is most likely necessary to improve this technology, however......

Although Donald claimed that the price of the self-tightening technology was relatively high, exceeding the budget of the Germans in the tender for the construction of warships. But this statement still made Alfred 61 Krupp happy, because this kind of thing is always a good thing as long as it is talked about. I'm afraid that people will directly refuse, saying that there is nothing to talk about on this issue. It's just that this is not the time to discuss this issue in detail. So Alfred 61 Krupp nodded to Donald and John Morgan Jr. and said, "We can find another time to discuss these issues in detail, and I think it may be better to take a company-to-company approach to this issue." This is because the German government certainly does not have a reason to pay for technology transfer for private companies. ”

Donald knew that Alfred 61 Krupp meant that this technology transfer project could be negotiated outside of the battleship contract. This is exactly what Scrooge meant, because in doing so, it is much more inconspicuous and easier to reach a compromise in terms of interests.

"We also feel like it's a better way." Donald replied in the same way.

……

Later, other shipyards, such as Krupp's Germania shipyard, Danzig's Shuoxiao shipyard, Stettin's Volkeng shipyard (the shipyard that built Dingyuan Zhenyuan for the Beiyang Naval Division), and Wiesel shipyard all put forward their own plans. However, in terms of technology alone, there is still a clear gap between their level and that of the Morgan MacDonald shipyard. Donald estimates that the reason why the Germans emphasized technology transfer in this tender may also be an opportunity to strengthen their own shipbuilding industry.

Moreover, under the condition of slow growth in market demand, Germany must also open up new markets, and the competition to enter the world shipbuilding industry is also a way to maintain economic development. When the shipyard develops, it will be able to enter the civilian market in the future to compete with other companies in the world. Of course, this also includes the Morgan MacDonald Shipyard.

Scrooge didn't care, though. Selling these technologies naturally led to the suspicion of cultivating competitors for himself, but after getting the money, Scrooge could use the money to further his own technology, so as to suppress his more important competitors, the shipyards of the British. As for the German shipyards, when they could really compete in the international merchant market, the war should have begun. Wouldn't smashing them again solve the problem?

Because this includes the meaning of such technology transfer, in fact, as long as various technology transfers can be agreed on in this tender, MacDonald's chances of winning the bid will not be small. So in terms of the offer, Donald very unceremoniously quoted $8 million, or about 33.6 million marks, for the first type of battlecruiser, and $7.5 million, or about 31.5 million marks, for the second type of battleship. A price of $2 million, or 8.4 million marks, was quoted for the design of the two warships. In addition, the cost of technology transfer is negotiated between the other shipyards and Morgan-MacDonald Shipyard. This price does seem a bit expensive. Under normal circumstances, if the Germans were able to order such things at a shipyard in England, the price of these two things would be about 1.2 million pounds at most, about 24.6 million marks. If the Germans themselves had the technology to make it, it would be cheaper, maybe 1900 to 20 million marks would be enough.

But Donald feels that the price he quoted is basically a conscience price, because the arms market has always been like this, if you can't make it yourself, is there any other way to buy, then the price will naturally be a lot more expensive, such as the 4V of the later generations, buy a second-hand pomegranate sister from the bald eagle, the price is actually more expensive than the dog to buy a new luxury version, and this is not the end, and when it needs to be improved after a few years, the bald eagle did not hesitate to throw out a modification fee comparable to the price of buying a new.

Of course, this is not the best, I think at the beginning, the big dog came to the Red Rabbit Country to buy medium-range missiles, and the Red Rabbit Country said that this thing is not for sale. The big dog didn't say a word, and spoke directly with money, and let the Red Rabbit Country quote money casually. The little rabbits who had never seen the world were black-hearted, and decided to directly quote a black-hearted price that exceeded the cost of several times to scare him away. So he stretched out a hand, which meant 5 million soft girl coins. Although I know that the big dog actually said: "So cheap? The little rabbit was startled and hurriedly said, "Dear, it's a green ticket." The big dog replied indifferently: "Isn't it half a billion dollars?" Mere trifle! "And then the big dog has medium-range missiles.

So, the price of the Donald newspaper is indeed very, very sincere. Of course, the Germans still have to bargain, but their shipbuilding capacity is not strong enough, and there is no other place to buy such a ship, and there is even more temptation for technology transfer, so Donald feels that the hope of this business negotiation should be very large, of course, for this judgment, Donald has been biting very tightly on the price.

In addition to negotiations with the German government, negotiations with various shipyards were also very troublesome and full of various details. In the blink of an eye, a month passed. Everyone has basically reached a consensus on some basic issues, and there is no need for figures of the level of Donald and John Morgan Jr. to make ideas about the rest of the matter. So the two were ready to leave Germany and booked a ticket back to the United States.

That afternoon, Donald, who had nothing to do, gave himself a half-day off to relax in Berlin. He took a few people with him and wandered aimlessly along the street under the linden tree, enjoying a rare leisure time. In this way, Donald wandered all the way to the Brandenburg Gate, one of Berlin's most famous attractions. But here Donald suddenly had a strange feeling, as if someone was hiding somewhere watching him, but it was that this gaze did not make him feel any sense of danger.

"Mr. MacDonald, are you unwell?" His attendants immediately noticed that he was unusual.

"Oh, nothing. It's just that I feel as if someone is watching us. Donald said.

The attendants immediately approached and surrounded Donald in the middle, and then a small car that had been following them drove by, and several people hurriedly got into the car and left the Brandenburg Gate.

Donald has always believed in this feeling of his own. So when he got in the car, he began to think: who was watching him?