On the first day, the air show continued, but Ling Shizhe did not show up, and he, Allison and Christopher, were in a five-star hotel not far from the air show with Pratt & Whitney.

"Mr. De Rooney, the conditions I put forward are not acceptable to our company, KTC-2000 five-coupling is no problem to sell to you, but we do not sell blade grinding technology, if your company has this demand, we can OEM for you, you must know that Ambrera Aviation Power Company has the business of undertaking blade processing." I originally thought that this was another big order, but I didn't expect Pratt & Whitney to open his mouth and actually want blade grinding technology.

Don't think that with the five-shaft grinding machining center, the grinding of the blade is hand-in-hand, the production equipment is only the first step, with the equipment you have to find a way to process it out, and the related process is a set of technical system, without this, the five-shaft grinding machining center can only be a furnishing.

In fact, with the strength of Pratt & Whitney, they can also come up with their own processing methods, but it just takes a little time, but I didn't expect them to ask for blade grinding processing technology in one mouth, of course Ling Shizhe is unwilling.

"Ling, you have to know, if there is no relevant blade grinding process, you tell me, what is the use of the five-shaft grinding machining center I bought?" Martin. Ned. De Rooney retorted mercilessly.

Yesterday, when the processed blades were tested, his subordinates told him that the blank material used by Ambrera Company is a new type of high-temperature titanium alloy material, from the perspective of the material composition of the blade, this new titanium alloy material is a high-purity and high-density titanium alloy made by a rapid solidification / powder metallurgy method, at a high temperature of 910C, its strength is equivalent to the strength of the titanium alloy used at room temperature, and it is the best material for low-pressure compressor blades.

After hearing the report of his subordinates. Martin. Ned. De Rooney's first reaction was to get the high-temperature titanium alloy material technology into his own hands, so he proposed to Ling Shizhe to obtain grinding technology as a test.

Ling Shizhe: They are not fools. Know Martin. Ned. De Rooney's ultimate goal, so he directly vetoed it. "Your real purpose is to obtain our BT36 titanium alloy smelting technology, I advise you not to make up your mind, if you need BT36 I can provide it to you. But I think the best way for us is that you outsource the manufacturing of the blades to us, and my blade casting and processing factory is in Hong Kong, and our workers are good enough, and the labor cost is much lower than that of the workers in the United States, and you don't lose at all if you hand it over to us. There are also significant cost advantages. ”

Can Martin. Ned. De Looney firmly disagreed, he must obtain the smelting technology of BT36 titanium alloy, and at the same time he also promised that as long as he sold the BT36 titanium alloy technology and grinding processing technology to him, Pratt & Whitney could pay a sky-high price of 1 billion US dollars for this, and the outsourcing of engine blades was easy to say.

Ling Shizhe was stunned, a high-temperature titanium alloy technology is just a high-temperature titanium alloy technology, where it costs $1 billion, and the other party actually threw it out without hesitation, as if the money is not money, this is 1 billion US dollars in the 70s. Even in the 21st century, when the dollar is depreciating, it is a huge amount of money, let alone now.

Ling Shizhe started thinking. What is the reason why Pratt & Whitney has made such a big determination to obtain the material technology of BT36 high-temperature titanium alloy no matter what.

After thinking about it for a long time, I didn't think of the essentials, no matter how rich Pratt & Whitney is, it is not a strong wind, and it will never hesitate to throw out $1 billion for an ordinary high-temperature titanium alloy material technology, their IQ will not be so low, if it is really so low, they will not make a magic machine like F119 in the future.

Wait, F119, BT36...... Oops, how did I forget this. Ling Shizhe's mind flashed, and he finally remembered why Pratt & Whitney was willing to pay such a big price.

BT36 high-temperature titanium alloy is the alloy code given to it by Ambrera. In its previous life, the code name should be TI-1720, which is a high-temperature flame-retardant titanium alloy based on titanium and aluminum compounds. This material happens to be the second stage fan of the later F119. As well as the materials used in the six-stage compressor, including the front casing of the F119 engine, the outer culvert casing and the static parts of the engine, the static blades are all made of BT36 titanium alloy material, and even some high-temperature gears are also used in this material.

The concept of flame retardant titanium alloy was proposed in the early 70s, because titanium alloy has high specific strength corrosion resistance and heat resistance and other excellent properties, so it has been widely used in aero engines, but the characteristics of titanium alloy combustion in a specific environment limit its application range in advanced aero engines

Surround.

The ignition temperature of titanium alloy in the air is above 1600C, and in the harsh working environment of the engine, the working temperature of titanium alloy must be controlled below 600C.

It is important to know that the turbofan engine is a high-containment power equipment, and the distance between the engine blades and the casing is very small, with such a low clearance, when the engine is running at high speed, the blades and the casing will produce high-energy friction, which is the reason for the titanium alloy fire.

600C is a hurdle, which greatly restricts the development of turbofan aero engines, so in order to solve this global problem, scientists put forward the idea of flame-retardant and high-temperature resistant titanium alloy in the early 70s.

After years of exploration, the AlloyC flame retardant alloy developed in the United States, that is, the well-known TI-1720 flame retardant alloy in the industry, its biggest advantage is good high temperature performance, strong oxidation resistance, good creep resistance and light weight (dense only 1/2 of nickel-based superalloy), and was quickly applied to the F119 engine.

Of course, Ling Shizhe made BT36 can only be regarded as a copycat version of Ti-1720, its flame retardant performance can reach 70% of the United States, if this is in the future, it is a failure, but in the 70s, BT36 flame retardant titanium alloy is simply a god against the sky, you must know that the concept of flame retardant titanium alloy has just been put forward for a few years, and scientists from all over the world are still engaged in research, and the real thing does not know that it will be until that year, but at this time, Ling Shizhe took out this alloy, can not let Martin. Ned. De Rooney was surprised?

That's why. He dared to offer a sky-high price of $1 billion, and he had to get the flame retardant alloy technology in hand no matter what.

After thinking clearly about the cause and effect, Ling Shizhe knew what to do. Quietly told Allison about his plan, and then told Pratt & Whitney through his mouth. "It's not impossible to want BT36 flame retardant titanium alloy technology, but we are not short of money, and if we want, we can exchange things for it."

Martin. Ned. De Looney quickly exchanged glances with several of his subordinates, then asked, "What do you want?" Listen, yes, but don't overdo it. ”

Alison laughed, "We won't make a request to embarrass you, we only have one thing." Your latest floating-wall flame canister. ”

"It can't be!" Martin. Ned. De Looney quickly stood up, "Do you know how important this thing is to us? ”

"Of course we know, isn't it the flame of the F100 turbofan engine." Ling Shizhe didn't care.

The floating wall flame cylinder is one of the core accessories of the F119 turbofan engine, which is a huge amount of money spent by Pratt & Whitney Company, which lasted more than 20 years, and in 1975, developed the first generation of floating wall flame cylinder with a double-pass nozzle, and used in F100-P to launch the second generation of floating wall flame cylinder with evaporative fuel injector, and used in F119.

Of course, Ling Shizhe had no reason to let go of such an artifact. If you want my BT36 flame retardant titanium alloy, you have to hand over the floating wall flame cylinder technology, otherwise you don't have to talk about it.

Martin. Ned. De Rooney, of course, refused to give in. No matter how coercive and tempting he was, Ling Shizhe was unmoved, and only had one sentence over and over again, "Want it?" Take the floating wall flame cylinder technology for it. ”

Seeing that the time was already noon, everyone decided to adjourn the meeting for the time being, and continue to talk in the afternoon. Ned. "You know better than I do what BT36 flame retardant titanium alloy means to Pratt & Whitney. If you don't want to, I'll talk to Rolls-Royce or GE. I think they're willing to trade with me. ”

After leaving the hotel. Alison asked, "Boss, is the Floating Wall Flame Barrel really that important?" ”

"You go and ask Wang Yuanzhuo. He will tell you how important it is to us. ”

Alison was silent, and everyone returned to the exhibition area without saying anything, called Wang Yuanzhuo over, and told him about the negotiations with Pratt & Whitney in the morning.

When Wang Yuanzhuo heard that Ling Shizhe used BT36 flame retardant titanium alloy technology to exchange Pratt & Whitney's floating wall flame cylinder technology, his heart jumped suddenly, and the floating wall flame cylinder was a thing, and he knew that if the company mastered the floating wall flame cylinder manufacturing technology, then the core machine that the company is currently designing will solve half of the problem.

The so-called "core engine" is the core component of the engine composed of compressor, combustion chamber and turbine developed in order to shorten the development cycle of new engines, improve reliability, or develop various types of related or similar engines.

The research and development of the core aircraft is a difficult process, from leading the aviation power laboratory to the current aviation power company, the team led by Wang Yuanzhuo has made no less than 20 kinds of core aircraft design schemes in two years, but none of them are satisfactory to him, and the biggest problem is that it is stuck on the flame cylinder.

The flame barrel is one of the core components of the aero engine, and it is a technology that the aero engine manufacturing company never transmits, so Ambrera can only develop the flame cylinder technology by itself.

But the flame tube has a high technical content, that is to say, the development can be opened, for this reason, Wang Yuanzhuo's hair is a lot grayer, but today when I heard Ling Shizhe say that it is possible to get the latest floating wall flame cylinder technology developed by Pratt & Whitney, Wang Yuanzhuo doesn't know how excited he is, if the plan is really capable, then the core machine project can be officially approved.

With Pratt & Whitney's floating wall flame tube, Wang Yuanzhuo has enough confidence to make the core machine that Ling Shizhe wants, as long as the core machine is successful, the aero engine will not be far away.

Will Pratt & Whitney agree? Thinking of this, everyone's hearts were worried again, and seeing everyone's gains and losses, Ling Shizhe said: "It's time now, what are you doing with these useless things, is the other party willing to change with us, we won't know in the afternoon, let's eat now!" ”

Just an hour, as long as a century, when Ling Shizhe came to the hotel conference room on time in the afternoon, Martin. Ned. De Rooney announced the result - agreed to the exchange! (To be continued)