In a few minutes, Wang Bin came to a small factory on the hillside of the hill. The factory was not very large. Even the old factory of Wang Bin''s family was much larger than the factory where he is now.


    However, Wang Bin is very concerned about the plant. There is not only a nearly four meter high fence around the plant, but also the security inside the plant is very tight.


    And looking at the look and walking posture of these security guards, if people with certain military knowledge will definitely find that these people are not ordinary security guards, they are definitely veterans, and they are not ordinary veterans.


    At the same time, for the sake of the factory, Wang Bin directly bought the whole hill bag where he was located.


    After arriving at the gate of the factory, Wang Bin first verified his identity before entering the factory and coming to the inside of the factory.


    "Professor Zhang, what kinds of high-temperature blades made of different materials I sent before, and can they all be used as materials for high-temperature blades?" Wang Bin asked Professor Zhang, who was busy in a workshop in the factory,


    Yes, this humble factory is Wang Bin''s important experimental base of Tiangong technology, the aircraft development base, and Professor Zhang is the person in charge of this base. Of course, at this time, the laboratory is still very simple, and many aircraft engine testing equipment have not arrived. However, even so, during this period of time, Professor Zhang, they have also made great achievements.


    The first is to complete the finalization and manufacturing of the shell material of the engine, and also determine the determination and finalization of the material of the high-pressure combustion chamber of the engine. He even made some improvements to some parts of the engine according to his own knowledge and experience in aviation development, so that the engine can theoretically produce stronger thrust.


    At the same time, they have also determined the blade materials of the first half of the engine, that is, the blades and materials of the compressor.


    Now they are testing and finalizing the turbine blade material behind the combustion chamber.


    At the same time, it is also the last step in this regard. As long as the turbine blade materials are determined, the materials of the aeroengine he obtained before are basically the same. The next step is to manufacture a real prototype and test related aspects.


    "Not bad. Among the materials you sent before, two materials meet the requirements of turbine blade materials. The two materials are special high temperature resistant glass materials and high temperature and high pressure resistant special steel materials.


    Among them, the highest temperature resistance of high temperature resistant glass is about 2300 degrees, and its weight is relatively light. It is a very good blade material selection.


    However, this kind of glass also has its own defects, that is, the performance of anti centrifugal force under high temperature and high pressure is insufficient. Although it can be used as the material selection of blades, I do not recommend it, but it is good as the selection of compressor blades.


    As for turbine blades, we have a better choice, that is, the special high-temperature resistant red steel material you sent before, President Wang, that is, the special high-temperature resistant steel material named Red Steel I by Tiangong technology.


    This kind of steel not only has the highest high temperature resistance of about 2600 degrees, but also exceeds the special high temperature resistant glass in terms of overload resistance and other properties under high temperature and high pressure.


    At the same time, in terms of weight, although it is heavier than the previous special high-temperature resistant glass, if this material is used, the temperature of the combustion chamber can be higher, the pressure and temperature that the turbine blade can withstand are also higher, and the thrust of the engine is naturally stronger than before.


    Therefore, if this material is used as blade material, I think the thrust of the engine may be further improved.


    It can be said that it is a rare aeroengine turbine blade material, "Professor Cui replied to Wang Bin''s inquiry.


    "That''s OK! We have determined to use this type of red steel as the material of our turbine blades.


    Does that mean that we can finally start the real trial production of air launch? If we can start, I will inform our precision workshop to start the manufacturing of air launch parts! "Wang Bin asked again after getting the answer from Professor Zhang.


    After all, Tiangong technology is not an official enterprise. After selecting materials, they must go through a series of things before they can start real manufacturing. Wang Bin''s Tiangong technology does not need so much trouble. As long as Wang Bin agrees as the boss of Tiangong technology, it can be manufactured immediately.


    After listening to Wang Bin''s words, Professor poke thought slightly and said, "although the test equipment here is not very complete, and many important aircraft launch test equipment are not available, if it''s just a simple test, we can still do it here!"


    Then Wang Bin spoke to Professor Zhang and went back to Tiangong technology headquarters. He took out the drawings of Aeroengine Parts and asked these masters in the precision workshop to start processing these parts.


    ...........


    However, when Wang Bin was busy processing the parts of aeroengine in their laboratory of Tiangong technology, that morning, chief engineer Lin and manager Cao, who were far away in the provincial capital, also started from their 969 group and came to Tiangong technology!


    After a few hours'' drive, chief engineer Lin and manager Cao finally arrived at Wang Bin''s Tiangong technology at about 10 o''clock in the morning.


    At this time, Wang Bin had already received a call from chief engineer Lin, so when they came to Tiangong technology, Wang Bin and Wang Xu were waiting for them here.


    "Chief engineer Lin! Manager Cao welcomes you to visit our Tiangong technology again!" when manager Cao and chief engineer Lin got off the bus, Wang Bin came up and smiled at chief engineer Lin and said to them.


    "Hello, Mr. Wang! We meet again!" chief engineer Lin and manager Cao said to Wang Bin and shook hands with Wang Bin. Then Wang Bin took them to his office.


    When the two sides were poor for a while, Wang Bin asked chief engineer Lin: "chief engineer Lin and manager Cao don''t know the purpose of your coming to our Tiangong technology this time?"


    Previously, although Wang Bin knew that chief engineer Lin and manager Cao would come to their Tiangong technology, Wang Bin did not know that chief engineer Lin and manager Cao came to their Tiangong technology purpose.


    After all, if you place an order, the current technology doesn''t have to be so troublesome. Just make a phone call and send someone to sign the contract with Tiangong technology. There''s no need for manager Cao and them to come in person, let alone both of them.


    After listening to Wang Bin''s words, chief engineer Lin no longer concealed it, but directly said, "to tell you the truth, I came to your Tiangong technology to confirm one thing to you, that is, Tiangong special materials company. Is it a branch of your Tiangong technology?"


    Wang Bin is not surprised that manager Cao and chief engineer Lin know about this. Although Wang Bin has been extremely confidential about the acquisition of Tiangong special materials company, there are few even if Tiangong technology knows about it.


    However, as chief engineer Lin and manager Cao, you can still find out if you want to inquire about this matter!


    So Wang Bin did not deny it, but nodded readily and said to manager Cao and chief engineer Lin: "indeed, Tiangong special material manufacturing company is a branch of Tiangong technology. To be precise, it is a civil special material manufacturing company!"


    "So was Yuanguang that day!" chief engineer Lin asked again.


    "Yes, Tianyuan optics is also a branch of our Tiangong technology. Why do chief engineer Lin and manager Cao tell me something about these two branches?" Wang Bin thought and asked them.


    After all, if there is nothing else, they will certainly not mention the two companies, especially the two companies are only companies producing civil special materials and special glass.


    "It''s really president Wang''s branch of Tiangong technology! It''s really a happy thing! Although the performance of the special steel you developed before is very advanced, and even exceeds the performance of the world''s best bearing steel in this era.


    However, according to my analysis, the reason why the bearing steel you produced before has such good performance is that a large number of rare metals are used in this bearing steel, and even strategic metal elements exist.


    Therefore, although this bearing steel is very excellent, its own material is doomed. This bearing steel can only be used in a small range and can not be sold on a large scale. Otherwise, even as a large rare earth country, our country can not afford such rare earth consumption.


    Therefore, with this bearing, although we have broken through the restrictions of foreign bearing manufacturers on military bearings in many military equipment fields, it is only that.


    Now your Tiangong special material company is different. Although the special bearing steel used by your company is based on our previous bearing steel, it is far from being compared with the previous one in terms of performance.


    However, the use of rare earth has been greatly reduced, and even the strategic materials that should have been used have been completely out of use.


    This makes the large-scale mass production of this bearing steel no longer a dream, so president Wang bought the current Tiangong special material manufacturing company to produce this bearing steel.


    At the same time, I think you must know about the domestic bearing steel market, President Wang. Even many things are on your own initiative. I don''t know whether President Wang is right or not! "Chief engineer Lin said.


    "Yes, chief engineer Lin, you are basically right. After all, the domestic bearing steel and bearing market can not always be controlled by these foreign bearings.


    Although we can''t and can''t completely drive these foreign giants out of China, the voice of this market must be in our own hands, chief engineer Lin, don''t you think so!


    The situation of bearing and bearing steel market during this period is caused by competing for domestic market share or voice, "Wang Bin nodded and said.