roccoschili Page 541
Page 541
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Before boarding the train, Tang Hua took a few newspapers with him. After reading the first newspaper after driving, he saw the great news of the National Football Team qualifying for the Olympics.
What?Is it that simple for the Olympic team to advance to the Olympics?Lie down and win, and then go in?
"Why do you look so happy when you see the news?" Vice Chairman Liu said, "This is the qualifier. They will go to Melbourne to participate in the Olympic Games in November this year. That is the official competition."
Tang Hua: "It's not easy to reach the finals from the qualifiers."
"This is not like your previous style. From my point of view, sports competitions are for everyone to compete for the championship. If you go to the Olympics and go home, you will lose to Melbourne."
Tang Hua: "Speaking of which, it would be great if there were TV broadcasts. Now there are TV stations in Beijing, Shanghai, and Changchun."
Vice Chairman Liu: "Is this a transcontinental submarine cable? Melbourne and our side don't have such a good communication."
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The current TV broadcasts are long-distance submarine cables, and short-range/ultrashort-wave signals can be returned at short distances.But either way, it is likely that China will not be able to see the broadcast of the game.
...synchronous communication satellites?
Vice-Chairman Liu: "This time the Soviet comrades invited us to talk. In fact, it is not just the end of the [-]th National Congress. They may be more worried about Eastern Europe. We may have to make a clearer statement in Moscow and Poland. .”
Tang Hua: "There are some situations in Poland in Eastern Europe, but among the seven Eastern European countries, Poland is not the only one with problems. Even Poland is not the one with the biggest problems."
Vice Chairman Liu: "Oh?"
Tang Hua: "Those countries that were slave states of the Nazis during World War II."
"I'm staying in Moscow for a few days this time. By visiting Poland, Germany, Hungary, and Romania, I just have the opportunity to inspect these countries on the spot. If there are signs of problems within them, then we should be able to find out and solve them. Good vaccination." Vice Chairman Liu said, "Are the negotiations on the atomic bomb sure to be successful this time?"
Tang Hua: "This time the negotiation must be successful. Minister Ye of the third factory negotiated two factories, and I will definitely be able to win the third factory this time. This time, I specially invited Minister Wang to visit Suzhou with us, so that we can win the third factory." Guarantee from the three factories."
At another small table in the carriage, Major General Wang Yongjun, deputy director of the Communications Department of the General Staff, was sitting on his seat, looking calmly at the birch trees speeding past the window.
Chapter 126, Comrade, the classical cryptosystem is dead
The gate of Tianjin Rocket Factory is as simple as a rural primary school built during the Republic of China.Except for the relatively wide gate of the factory, everything else is rustic, such as the heavy human-powered telescopic iron fence, the watchtower pavilion and reception room like square bricks, and the brick wall more than two meters high without any carvings. As for the "Tianjin Rocket Factory" The logo is a doorplate with black paint on a white paint background, which is directly pasted on the wall next to the reception room.
What's more eye-catching is that not far from the Rocket Factory is the Tianjin Firecracker Factory, a public-private joint venture. The house number of the Firecracker Factory is exactly the same as that of the Rocket Factory.
Every time Qian Xuesen was on a business trip from Beijing to the Tianjin Rocket Factory, when he entered the door, he thought that this might be deliberately arranged by Tang Hua.
Despite its low-key appearance, Tianjin Rocket Factory is actually one of only three launch vehicle/ballistic missile manufacturing centers in the world.Although the United States and the Soviet Union took the first step, the Soviet Union realized the long-range guidance and is moving towards intercontinental missiles. The United States wants to develop intercontinental missiles in one step. It is currently developing the "Atlas", while China now only has Dongfeng-660 with a range of 1 kilometers. But this is still the third in the world.
Moreover, Tianjin Rocket Factory has the world's only CNC machining center for launch vehicle/engine manufacturing, a ground test bench capable of testing 500-ton thrust rockets in Chengde, Hebei, and a space physics center of the National Defense Advanced Technology Research Institute in Xianghe, Langfang There is a missile and spacecraft aerodynamic test center.
and the headquarters of the Advanced Research Institute of Defense Technology in Beijing.
This set of factory equipment and research institutions is definitely not prepared for near-missile and intermediate-range missiles, but for intercontinental missiles, space satellites and even more advanced gadgets.
The reason why they are scattered in several places from Beijing to Tianjin, and some even to Hebei, is to use Qian Xuesen's words to "prevent the missile and launch vehicle industrial system from being destroyed by one or two nuclear bombs."
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"Xinmin!" At the door of workshop 2, Qian Xuesen and Tu Shou'e called Ren Xinmin, who was doing a work inspection inside.
At the entrance of workshop 2, members of the rocket/missile body and engine design team met.
"Workshop No. 2 manufactures 65-ton engines," Qian Xuesen said, "Why don't we go in and have a look before the meeting."
Ren Xinmin: "I think it's okay. However, the procedures for entering the workshop are a bit cumbersome."
"I know, 6S on-site management." Qian Xuesen said.
Ren Xinmin: "Minister Tang formulated the on-site management rules for high-precision instruments and complex machinery processing factories. The rocket factory is the key implementation target. We are both high-precision and complex machinery. After several trainings and major inspections, the workers' The work habits have finally changed. Oh, by the way, German friends are especially supportive of 6S on-site management, and Hans is now on duty in the cross-workshop management inspection team."
Qian Xuesen: "German friend? Which Hans?"
Ren Xinmin: "The five Hans are all in the inspection team."
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In 1953, Qian Xuesen returned home from the United States via Western Europe-Eastern Europe-Soviet Union. In Berlin, he ran into Hans Schuttart who worked as an accountant in a restaurant. He used to work in the German Army Ordnance Bureau, and his job was to manufacture V-2 missiles. After the war, he became a civilian. .
Hans Huuttat heard from his friend Hans Schmidt who works in Moscow that China is probably developing missiles now, and if he can work in China, he will definitely be able to return to his old job, so seeing a Chinese in a restaurant Go up to strike up a conversation, strike up a lot of times, and then meet Qian Xuesen.Hans Schmidt is the electronic component engineer that Tang Hua met when he was solving the problem of the S25 missile guidance system.
Hans Schuttt also has a friend named Hans Schulz, who was a workshop mechanic for V-1 missiles during World War II. After the war, he manufactured the first Soviet cruise missiles in the test workshop of the Rocket Research Institute in Kiev.
Hans Schulz also had two friends in the V-1 missile workshop, Hans Kahn, an engineer for alloy processing, and Hans Sebastian, an engineer for piping technology. The Soviet Union invited them to develop ballistic missiles and rockets. In 1954, the Soviet Union felt that they had learned all their technologies, and then the intercontinental nuclear missiles they developed were too sensitive, so they dismissed all the Germans and went home.
The United States and the Soviet Union abducted a large number of scientists and senior engineers. China went several years late, so it could only pick up leaks. A total of 1 senior engineer, 3 engineers and 1 technician were picked up. Senior engineer Hans Schuttart He was promoted as a consolation before he went to the battlefield to die.
So it's a bit complicated to identify the names of these five people, let's say, (pseudo) senior engineer Hans Schuttard, electronic component engineer Hans Schmidt, V-1 workshop mechanic Hans Schur Ci, alloy processing engineer Hans Kahn, piping process engineer Hans Sebastian.
"The first rule of workshop site management is sorting out, which divides any items in the workplace into necessary and unnecessary items, and eliminates everything except the necessary ones. The second rule, positioning, puts the necessary The items used are placed in the specified position, and placed neatly and marked."
Workshop 2 has added a formal operator, and Hans Sebastian is training him on the basic rules of workshop work.
"Here is your workbench. Here are 5 tools and a cup for your work. These six items are necessary items, so they are left on the workbench, here, here, here, and here is position."
"Positioning means that when you finish using a certain tool or item, you must see the item return to its original position before your work is completed, rather than processing the machine and your work is completed. Items do not Homing, for example, if you don’t see the pliers in this position, then the parts must be with you and cannot be passed to the next workbench.”
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Qian Xuesen and others changed their shoes and put on white coats to enter the workshop, but they could only walk in the designated area of the workshop. According to the production regulations, visitors were not allowed to approach the workbench and the assembly line.
"After the implementation of 6S, the manufacturing quality of the rocket factory has indeed been greatly improved," Ren Xinmin said. "Rockets and rocket engines are extremely complex machines, and the products delivered from the factory can be said to be almost flawless."
Qian Xuesen: "Indeed, this year we fired four TK-4 sounding rockets in a row, and the success rate is 3%."
Tu Shou'e: "The specific impulse per second of the 65-ton engine increased by 7% after the plan was revised, and the thrust was raised to 67 tons. The new rocket engine was successfully tested in Chengde. The first prototype of the 120-ton engine is on the way to Chengde. Let's take a look. Send back the report from Zhou."
Qian Xuesen: "Today's meeting mainly focused on the difference between the 67-ton engine and the 65-ton engine. It is of course a good thing to increase the thrust by 2 tons, but it also means that the acceleration of the rocket during ignition has increased by 0.05 g. Therefore, the DF-2 bomb All the subsystems and parts of the subsystems on the system must be re-assessed to see if they work normally when adding 0.05 g."
Yao Tongbin: "All have increased by 0.05 g, and the biggest change in overweight is the rocket body. However, there is enough margin in the design of the rocket body strength. As far as the current situation is concerned, I think the rocket body is not enough. Additional strengthening is required."
Tu Shou'e: "My side is the primary and secondary connection and separation equipment. I need to go back and recalculate in this regard."
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In front of the computer, Qian Xuesen reviewed the technical design of the DF-2 missile again.
After the redesign of the engine, the specific impulse at sea level is 238 seconds, the thrust at sea level is 65.6 kN (67 tons), one pump and four combustion chambers, the oxidant is red smoke nitric acid, and the fuel is aviation kerosene.
The DF-2 missile has a diameter of 1.65 meters, a total length of 20 meters and a weight of 42 tons.The range was originally estimated to be 2000 kilometers, but the engine design was readjusted, and the adjustment results of the various subsystems of the missile were integrated. Qian Xuesen used a computer to recalculate the trajectory, and the result was that the range might reach 2250 kilometers.
But it's not time to try out the maximum range yet. The test launch in July only verified the rocket engine, and then gradually added equipment. In 7, it was the full-bomb test launch, and then in July 1957, the full-state test launch of the missile was carried out.
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