Chapter 449 Material breakthrough, everyone is alive

It didn't take long for Chang Haonan to receive the test results from Xingcheng Special Steel.

Download it as quickly as possible and then open it.

The new computer given to him by the school has good performance and can even open two forms at the same time without lag, which makes his office experience more than a little better than before.

For a person who is accustomed to modern office methods, holding several printed paper forms and comparing them one by one every time is simply an eyesore and a brain-wrecking thing.

"These two materials... seem to be somewhat different..."

After extracting the key data and comparing it, Chang Haonan rubbed his chin and thought.

Metallurgy can be said to be an open question with no standard answer.

At least not yet.

Therefore, although the new materials produced by Xingcheng Special Steel and Northeast Special Steel can be regarded as having the same origin, after all, they are all derived from the set of process design methods provided by him, the situation is similar to that of other special steel companies. , due to differences in past experience and habits, the final specific process will not be exactly the same.

Generally speaking, Xingcheng Special Steel's products are more suitable for bearings.

The surface hardness and core hardness of Northeast Special Steel are greater, which is relatively more suitable for making gears.

Of course, the difference is definitely not too big, and there is no big problem if you really want to use them interchangeably.

Bearing steel and gear steel are often the same base material, and manufacturers can just take them back and perform different post-processing.

It's just that aircraft engine bearings are not used in large quantities, and they are still in trial production, so you must choose the most suitable one.

Although Northeast Special Steel is an enterprise in Chang Haonan's hometown of Liao Province, it is not easy to harm the public and private interests at this time.

So, he picked up the receiver of the red landline on the table and made a call to Liming Engine Company in Shengjing.

"Hello, I'm Chang Haonan, help me transfer Mr. Zhong."

Chang Haonan and Zhong Shihong are old acquaintances, but they must still be called more formally in front of each other's subordinates.

Job title in workplace.jpg

"Please wait."

Soon, after a dial tone that lasted for perhaps a few seconds, the phone was reconnected.

"Mr. Chang, please find me."

"Gong Zhong, Xingcheng Special Steel Company in Jiangsu Province has developed a new type of bearing steel with better performance than M50NiL. In terms of material properties, it can be used in third-generation turbofan engines. Please follow us as soon as possible. Axis, Luozhou and Bingxuan will contact each other and ask them to provide some samples for basic performance testing."

"Wait...better than M50NiL?"

As an old technician at Liming Factory, Zhong Shihong naturally knows a lot about aerospace bearing steel, although he is not a metallurgist.

The bearing steel used by China before the 90s was mainly the first generation ZCCr15, a typical high-carbon chromium steel that came out in 1901.

Of course, being old does not mean being backward. This kind of steel is still widely used in high-speed railways and precision machine tools, but it is not suitable for the harsh working environment of aerospace engines.

It was not until the mid-90s that the domestic application of the second-generation bearing steel M14 was finally realized on turbojet 8 and turboshaft 50. However, the research on this material is still far less in-depth than that in developed countries.

As for M50NiL, he had never thought of using it in the Turbofan 10 project.

This is also a worry for Zhong Shihong.

After all, the working environment of the third-generation engine bearings is worse than that of the second-generation engine. If the bearings of the turbojet 14 are moved to the turbofan 10, the first turning cycle may be lower than 150 hours.

That's almost unacceptable.

As a result, even the overall design of the Turbofan 10 has not yet been released. Mr. Chang called and told him that this problem has been solved?

"Yes, you can contact the bearing supplier for this. Just some time ago, I also designed a series of brand-new ball bearings and roller bearings with several experts in the field of mechanical design. Combined with the new bearing steel, it can be used in the third On modern engines, the bearings have the same lifespan as the entire engine!”

"This...I...god..."

Zhong Shihong on the other end of the phone was already a little dazed by the huge surprise. After sitting at his desk and relaxing for a while, he finally calmed down a little:

"Mr. Chang, if this bearing passes the basic performance test, will it be installed on the turbofan 9 first for installation testing?"

Although Chang Haonan is only nominally the chief designer of the Taihang engine, and the turbofan 9 project is still completely responsible for the 430 factory, almost half of the 430 factory's R&D and production teams are now in Shengjing, so he can actually Direct two projects at the same time.

So he immediately gave an affirmative answer:

"Yes, before the detailed design plan of the turbofan 10 is released, our Liming Factory will connect with the 430 factory for all technologies related to the production process and conduct testing on the turbofan 9, so that both the design work and the production work will not be delayed. It can also solve the problem of localization of turbofan mid-range thrusters."

Strictly speaking, this kind of operation is of course a bit unsophisticated, but China's foundation in aviation power is really poor. Not only is the capital investment limited, but even the scale of R&D and production personnel is too limited to complete two large projects at the same time. .

Unfortunately, these two types of turbofan engines are key subsystems of key models, so Chang Haonan can only use this method to maximize resource utilization.

This is why, in his proposal in the morning, he strongly opposed splitting the Aviation Industry Corporation into two groups with the same business to engage in so-called "competition in the same field."

How many dishes and drinks are needed to end up like this?

On the other side of the phone, after hesitating for a moment, Zhong Shihong decided to put aside the past grudges between the two factories:

"Okay, Zhang Zhenhua happens to be in our factory now, so it's more convenient for me to work through him."

The world is huge, and the project at hand is the biggest.

Besides, after this matter is completed, even if the 430 factory can get a mature turbofan engine model for almost nothing, if you really want to calculate it, it is he and the Liming factory who will gain the most.

The identity of the "big brother" of aviation power is absolutely unshakable.

……

After settling the most important matter at hand, Chang Haonan then responded to several faxes, confirming that Xingcheng Special Steel was the point A supplier of aviation engine bearing steel, while Northeast Special Steel was the point B supplier - this In the 1990s, email was not yet a formal means of communication in China, so formal documents still had to be delivered via letters, telegrams, or faxes.

As for the so-called AB point suppliers, they refer to the configuration of the AB corner of the drama to avoid accidental uncontrollable factors from having a huge impact on the project progress, which is part of risk management and control.

It was not yet popular in the 90s, but in the future everyone will gradually establish this awareness through bloody lessons.

Of course, this does not mean that Northeast Special Steel has lost its opportunity.

Publicly and privately, Chang Haonan could not let their efforts go to waste.

As the foundation of all manufacturing industries, huge breakthroughs in the field of materials are not just beneficial to any one project.

Especially gear bearings, which have always been a shortcoming of China's manufacturing industry.

Of course, Chang Haonan believes that both Xingcheng Special Steel and Northeast Special Steel are already considering bringing this new material to the market.

But it still takes time to gain market recognition.

After thinking for a long time, Chang Haonan picked up the phone again and dialed a number from the Science and Technology Commission.

Only this time the call was not made directly to Ding Gaoheng.

After all, the other party is the director of the Science and Technology Commission, so it is impossible to directly trouble him with every little thing.

"Hello, Secretary Lan, I'm Chang Haonan."

"Comrade Haonan, you have something to give me."

Although Chang Haonan currently does not have any formal position in the Science and Technology Commission, almost everyone knows that, except for Ding Gaoheng himself, his voice in the Science and Industry Commission is almost equal to that of several deputy directors.

Not to mention someone like Secretary Lan who can follow a big leader.

As long as it does not violate principles, Chang Haonan will be his second leader.

"Please make a list of the projects that are currently applying for the Seiko Plan and send it to me."

Chang Haonan was naturally planning to find a few suitable ones to distribute to Northeast Special Steel.

He needs a bowl of water to keep it level.

"Okay, I'll do it right away!"