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Twenty minutes later, Zhou Heng sent a few people to the 909 community, and Li Yuanling, who returned to the room, first took the two loli to take a bath, and then forced Ning Wanfei, who was a little drunk, to go back to the room to rest, and after simply cleaning up the house, he sat on the sofa with a smile and listened to Liang Yuan popularize gas turbine knowledge to Ning Wanjia.

"After listening to Xiaoyuan, I feel that Aunt Liang is so powerful. Ning Wanjia watched Li Yuanling idle, ran to Li Yuanling's side and leaned comfortably in Li Yuanling's arms.

"Jiajia, how old are you and still in my mother's arms?" Liang Yuan said with a smile.

Li Yuanling looked at Ning Wanjia's crimson face, stretched out her hand to comb Ning Wanjia's straight hair and said with a smile: "Jiajia, don't bother with him, Xiaoyuan is jealous." ”

With Li Yuanling's support, Ning Wanjia said to Liang Yuan proudly: "Xiaoyuan, why don't you come over and try it too, and see if Aunt Liang will kick you away." ”

Liang Yuan looked at his wife and looked at him with a smile, touched his nose, and changed the topic with a smile.

"Mom, haven't you told me that you haven't notified the relevant departments?" Liang Yuan asked curiously.

In China, the relevant departments must never be offended, and Li Yuanling's personality will not fail to see this, so Liang Yuan is very curious about Li Yuanling's failure to notify the news units and relevant departments.

Xiaoyuan also knows that the gas turbine project started with the naval power supporting system. Li Yuanling asked,

"Well, I remember what my mother said to Wu Lao before. Liang Yuan nodded and said.

"The gas turbine for today's ignition test run is a completely imitation of Spey**1A marine gas turbine unit, and the whole project had no intention of civilian use at all. Therefore, there is something wrong with the source of the complete set of drawings of Spey**1a. Li Yuanling said with a wry smile.

Although Li Yuanling's words did not match some of the preambles, Liang Yuan understood what Li Yuanling meant in a blink of an eye.

In the 80s, Rolls-Royce was bought by the British government due to the loss of Yanzhòng, and in the late 70's, when Rolls-Royce transferred the complete set of Spey aero-engine technology to China, Rolls-Royce was still a British state-owned enterprise, and it was not until 87 that Rolls-Royce reinstated its privatization.

Prior to Rolls-Royce's privatization, the Republic had already purchased a complete set of production drawings for Spey **1a through some means, but the relevant technical licensing permits were not purchased at any cost. If the Spey gas turbine is used on naval vessels, not to mention that the British have a very small chance of discovering it, even if the British find a pirated copy of the Republic. It can only be a dumb loss, the military is like that, and it won't have any effect if you protest, but Li Yuanling put the gas turbine based on Spey **1A into the civil power generation industry.

If this matter is discovered by Luo Luo, it is certain that there will be a copyright lawsuit, unless all of Liang Yuan's business has been staying in China and does not need to go abroad, he will definitely face huge fines and compensation, if this matter is not resolved, it will be a huge time bomb.

"The current gas turbine unit is inside. There are nearly 20% of the parts that we can not make in China, the 3-5 blades of the high-pressure compressor, the turbine disc of the high-pressure compressor, the power turbine turbine disk, the inlet of the flame cylinder ....... Li Yuanling said in one breath more than a dozen core processing technologies of gas turbines.

"My uncle said that the surplus precision forging and precision casting equipment has been used in the manufacture of trains. Liang Yuan said a little confused.

"The accuracy that your uncle needs is very different from that of your mother. For the same precision forging of a part, no matter what kind of qualification is close to 100% on the car factory's side, the pass rate on the mother's side is less than 2%. ”

For the Northeast Locomotive Factory, controlling the accuracy in the millimeter level is enough to meet the needs of the Northeast Locomotive Plant in the next five years, and for high-precision gas turbines. The accuracy of the parts and Su Liangyu's chip chamber are all at the same level.

At present, a gas turbine unit needs about 500 pieces of various fan blades, and a gas turbine needs to process 50,000 blades to assemble a qualified finished product with a processing success rate of 2%.

Liang Yuan smacked his lips, some felt that his head was big, no wonder the old lady did not notify the relevant departments and news units, for the real room that does not need to cheat the gas turbine, the current results can only be regarded as phased, and the real industrial production is still a few streets away.

"Now the core equipment of the new gas turbine is dismantled from the Spey aero engine, in order to increase the power suitable for the use of the ship, the Spey Navy changed the original five-stage axial fan to a three-stage fan and a two-stage low-pressure compressor, so the new three-stage fan and two-stage compressor can not be disassembled, can only be produced by ourselves, the result is only the processing of these two levels of redesign, the total number of low-pressure compressor blades is less than 40, and constantly improve the forging process, a total of 3,000 pieces have not been forged enough qualified products, and finally find the fitter master, from the scrap pile to find the structure of the blade without problems, after re-correcting by hand, it was put together. ”

"Xiaoyuan, my mother and the teacher have discussed, if we want to complete the localization of Spey, the British Rolls-Royce company is a hurdle that cannot be bypassed, without Rolls-Royce's technical support, it all depends on ourselves, even if the funds are sufficient, it will take ten years to form a technological breakthrough. ”

Li Yuanling sighed and continued: "In the past, my mother was not thoughtful in the production process, but I didn't expect that there would be a large number of unqualified parts when operating according to the process. ”

Liang Yuan did not feel too much surprise, in the eighties all Chinese did not know enough about the processing difficulty of aero engines, in Liang Yuan's previous life, even if the new century Spey engine announced the success of localization, the domestic production rate was only 99% The high-pressure turbine guide blades located at the outlet of high-temperature gas, due to the technology involved in the technology of precision casting composite cooled hollow turbine blades with no margin, still needed to be imported from Rolls-Royce in the United Kingdom, and the problem was not completely solved until two years later, when the first decade of the new century was halfway over.

No matter how the precision forging process is improved, it cannot reach the level described by Rolls-Royce in the text, and it is not until the Republic of China finds a way to find a relationship and finds a large-scale aviation repair factory with the same precision forging equipment in IsraelAfter returning to China, the inspired workshop director imitated the method of the Israeli factory, and finally solved the problem of low yield of parts using precision forging process.

If you can master a technology by buying a set of production lines, then India will already become the most advanced industrial country in the world, and there will never be more class brothers like the big brother of the Soviet Union, Liang Yuan sighed.

"Xiaoyuan, because we have to regain contact with Rolls-Royce and rely on Rolls-Royce's technical guidance to solve the localization problem of Spey engines, it is no longer feasible to secretly copy Rolls-Royce Navy gas turbines, and before the production license is solved, except for the two units that we use ourselves, Xiaoyuan wants to sell gas turbine generator sets in batches. Li Yuanling said with some guilt.

Liang Yuan looked at his wife with some guilt, grabbed his hair and said with a smile: "Here in the chip room, Lao Su and I have made a few new projects, and at present, we can produce at least three or four results in the first half of the year, so it is very consistent with the objective law of scientific development." ”

Li Yuanling heard Liang Yuan's brainless sentence, she was stunned at first, and found that Liang Yuan was laughing very cunningly, and then suddenly remembered the famous adage that "failure is the mother of success".

Looking at Liang Yuan's relaxed appearance, Li Yuanling's heart warmed, the depression and boredom of some parts of the gas turbine that could not be localized as expected disappeared, and she casually tidied up the sofa cushion at hand, Li Yuanling said with a smile: "Mom only now realizes that with a son like you, the benefits are still greater than the trouble." ”

Ning Wanjia, who was in Li Yuanling's arms, was simple-minded, and couldn't help muttering in a low voice after listening to Li Yuanling's words, "Xiaoyuan is not troublesome at all." ”

Ning Wanjia's little complaint was clearly heard by Li Yuanling, who was at the tip of her ear, and patted the little girl's pink cheeks, Li Yuanling said with a smile: "Okay, it's not troublesome, it's Aunt Liang who said it wrong, Jiajia married and was also with that bastard, Aunt Liang has hurt you in vain for so many years." ”

The little girl who found that she was talking about it became ashamed, and looked at Liang Yuanqiang looking at herself with a smile, even her white and greasy pink neck turned into a tempting peach, and she hid her head in Li Yuanling's arms and refused to show it again.

Li Yuanling smiled and cut Ning Wanjia's straight hair scattered on her shoulders and arms into a bunch, stared at Liang Yuan for a while, and then asked curiously: "Xiaoyuan, I always heard Lao Su say that you are a first-class investor, my mother is very curious, in the gas turbine project, if Xiaoyuan does not consider family relations, what will he do now, as my mother just said, only 2% of the parts yield rate should be a huge disaster for investors." ”

Liang Yuan said with a smile: "Mom, if you are not in this circle, I will be too lazy to come in and wade into this pool." ”

Li Yuanling grabbed the cushion beside her and made a throwing motion and said, "Don't go around in circles with your mother, I mean if you have already invested in it and heard that the key components have only a 2% yield rate, what decision will you make?"

Liang Yuanxin said that if it weren't for his wife as the chief teacher, of course, how far would he have to hide, without state support, where is the aero engine something that the company dares to test, but in order to build confidence for his mother, how dare Liang Yuan explain truthfully, in case the old lady sees that she loses money and feels guilty for picking on her son, she will be miserable, and the general layout around the aero engine will have to be completely overturned.

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