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Chapter 671 There is a condition

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    As the saying goes, laymen watch the excitement, while insiders watch the door.

    Professor Ali Khan is a senior engineer who has worked in top aviation manufacturing giants such as Airbus and Boeing. Even if his understanding of materials is not very deep, he has been exposed to it over the years.

    Especially fiber-reinforced metal matrix composite materials, both Boeing and Airbus have been widely used in the production of large civil passenger aircraft since the late 1970s.

    Because of this, Professor Ali Khan is well aware of the complexities in the production of this type of material.

    Let¡¯s take the diffusion bonding process, which is the most widely used today.

    First, the reinforcing fibers and metal sheets need to be stacked layer by layer like a stack of Arhats, and then rest for a period of time. After the adhesive that solidifies the fiber and the metal are fully combined, the two superimposed materials can be put into a professional  The air begins to be extracted from the container, leaving the container in a vacuum state.

    At this time, the electric heater starts to work, heating the two superimposed materials in the container to high temperature to fuse them with each other; after cooling, they are pressed under pressure to make the two materials completely diffuse and compatible.

    The high-temperature and high-pressure process is long and complicated. Usually, not many composite sheets can be produced in a diffusion bonding furnace in one day.

    That¡¯s all. The key is that this kind of diffusion bonding furnace needs to be supplemented by a complex vacuum environment and high-temperature and high-pressure supporting equipment. These equipment are often very large in size, very complex in structure, and naturally very expensive.

    If that¡¯s the case, as long as we can produce usable composite materials, it doesn¡¯t matter if they are more expensive.

    The problem is that this kind of diffusion bonding furnace cannot be bought and used just by reading the instructions. What is the degree of vacuum control?  What is the appropriate heating temperature?  What should the pressure be?

    Even if you understand all these things.

    ??Is the material first heated or pressurized inside?  Or should it be done together with heating and pressure?  How many times will it be done if done together?  If there is an interval between heating and pressure, what is the interval to maintain the stability of the material?

    With such a vast array of production data and process elements, equipment manufacturers will not tell you what you want?  Can!

    The manufacturer opened his mouth and said that the asking price may be three or four times more expensive than the equipment, because this is the core thing of the product, the core parameters of industrial production.

    Of course, you are lucky if you can get it for three or four times the asking price. The most deceiving thing is that the equipment is sold to you, but these core parameters are not given to you. They completely take your money and even sleep on your body.  You can't lose your temper at this time, otherwise the accessories will strangle you, and the things you spent a lot of money on will be turned into scrap metal.

    In comparison, the nb-998 laser plasma spraying equipment is simply a subversive of the previous process. It does not use high temperature, high pressure or vacuum at all, but replaces it with more refined and advanced metal powder and high-energy laser beam, just like a printer.  , while the metal powder is sprayed evenly, the high-energy laser beam has already fused and solidified the metal powder with the glass fiber. In this way, layer by layer, the required composite material plate can be produced quickly.

    Not only has the efficiency been improved several times, but the flexibility is far beyond the previous old process.

    It should be known that the diffusion bonding furnace uses high temperature and high pressure to fuse the reinforcing fiber and the metal material, so the thickness of the material must be guaranteed. Otherwise, under high temperature and high pressure, the overlay with insufficient thickness may be damaged and completely scrapped.

    Therefore, if you want to make thin and light aerospace component plates, you have to complete the processing of the blank and do two, three or even more subsequent processes to obtain the required standard appearance.

    The nb-998 laser plasma spraying equipment is different. As long as the basic strength is guaranteed, if you want thin materials, you can produce thin materials. If you want thick materials, it is nothing more than adding a few more layers of glass fiber and a few more layers of metal powder spraying.  Based on the processing needs, you can change it however you want.

    Not to mention anything else, during the time when the Pakistani military delegation entered Workshop No. 7, Professor Ali Khan saw two types of plates processed by nb-998.

    One is a three -layer 0.2mm thick aluminum plate with two layers of 0.3mm thick glass fiber layer. The thickness of 1.2mm thick composite material plate is mainly used for the leather cover of 15 aircraft.

    The other is seven layers of 0.3mm thick aluminum plates, sandwiched with six layers of 0.5mm thick fiberglass, to make a 4mm thick plate, which is used for the cabin floor of the Y-15 aircraft and the reinforcement of some secondary structures.

    The whole conversion process is very smooth, it just requires the operator to enter a few commands on the control keyboard.

    Unlike those old processes, not only the product is single, but the subsequent processing is even more difficult, because it requires thinning, cutting, and even directly using multi-axis machine tools to make components, which is no more complex than production.Not only that there are fewer material sheets, but it also increases the cost. The entire subsequent equipment is not affordable for a country with limited financial resources like Pakistan.

    So regardless of anything else, in terms of cost, the nb-998 laser plasma spraying equipment has simplified two to three major processes and twenty to thirty necessary processes. The cost control capability is simply incredible. One hundred million US dollars is really  What a great deal.

    You must know that the use of old craftsmanship, let's not talk about the processing equipment of the subsequent board. The set of complex and inefficient production equipment alone can not be taken down without $ 700 million.

    "The equipment purchased for US$7.8 billion may not be able to match the production capacity of an nb-998 laser plasma spraying equipment when fully activated.

    What¡¯s more, can they give you the core production parameters for the equipment purchased for US$78 million?

    This is not the case with Tengfei Group's nb-998 laser plasma spraying equipment, because it fully realizes computer automation control. All parameters are input into the computer and controlled using professional industrial software. There is no so-called equipment purchase.  The disgusting thing about the core parameters being cut twice is because all the parameters and equipment of Ascendas Group are completely integrated into one. Buying the equipment is equivalent to buying these core production parameters.

    As for whether other countries can obtain the core manufacturing data of nb-998 control status and materials from these industrial software and computers, although Professor Ali Khan really wants to do so, he can only smile helplessly.

    Because all data are restructured in computer language based on optimized mathematical algorithms, this is like the multi-meaning phrase "multiplayer sports", which was first expressed in Latin and then presented to everyone in Hebrew.  , the experienced driver who said this phrase certainly understands the multiple meanings beneath the surface of this phrase.

    Others know so much. Even if they go back to the original sentence of "multiplayer sports", they probably know that this may be a form of sports. How can they know that it contains indescribable alternative scenes?

    A slight difference can make a huge difference. Once the problem is completely reversed, let alone restoring it, it is estimated that the whole cracking plan will be thrown into the street.

    The important thing is to do this. If it cannot be restored to its original state, the entire equipment will be completely scrapped. At that time, the real gain will be lost.

    So buying the equipment honestly is better than anything else.

    "Haha~~Professor Ali Khan, General Rahman, you are so polite. I have already told you that we are all brothers. If you say this, you will be outspoken. So if nb-998 wants it, no problem, one hundred million US dollars."  The price will not change, but we have a condition"

    Just when Professor Ali Khan and others' interest in nb-998 reached its peak, Zhuang Jianye spoke at the right time. When Professor Ali Khan and others heard that there were conditions, their hearts immediately froze.

    If you like Soar My Aviation Age, please collect it: Soar My Aviation Age is updated the fastest.  (Remember the website address: www.hlnovel.com
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