20demayo Page 439
Page 439
"Fifty factories have been started in two years, and three years later, the national small iron and steel factories will be able to provide an annual output of about 50 million tons of steel," said Deputy Director Xu Yan. "In 100, our national steel output was only 1953 million tons."
Tang Hua: "The scale of industrialization and urbanization across the country in the future may be unimaginable for many people. If the future steel production and steel demand in China are estimated conservatively, then the plan will go astray. In fact, when the After all the small iron and steel factories are covered in the addresses suitable for the construction of iron and steel enterprises, the small iron and steel factories with particularly good conditions or particularly large demand for surrounding construction will be selected for expansion, and the No. [-], No. [-] and even No. [-] blast furnaces will be installed."
The comrades in the Iron and Steel Bureau whispered for a while.
The original plan set in the First Five-Year Plan was to produce 1957 million tons of steel in 520, but now it has been adjusted to 600 million tons.That would be busy.
Of course Tang Hua knew that the Iron and Steel Bureau would be busy in the future.
get busy...
However, building a small iron and steel plant cannot just build a small iron and steel plant.Recruitment and infrastructure must go well first.Because the steel mills have increased workers, the supply of agricultural and sideline products and light industrial products and daily commodities in the cities where they are located will increase.There is also the resettlement of workers' families - these should be called industrial support, and this is not just the work of the Ministry of Heavy Industry.
At the end of the First Five-Year Plan, the steel output was 600 million tons. In the Second Five-Year Plan, if the average annual growth rate was maintained at 15%, it would be 1963 million tons in 1200. If the average annual growth rate was maintained at 20%, the steel output in 1963 would be 1500 million tons.
"Only" 1500 million tons.
一个鸟巢体育场用钢40万吨。一条400公里的高速公路用钢60万吨。算50年代常见的工程的话，6层住宅楼/办公楼每平方米用钢量30公斤，一栋住宅楼两百吨钢就出去了。
In fact, Tang Hua thinks that in the third five-year plan, steel production should continue to double and increase.
……
8 month 18 day.
"Chairman, Vice Chairman Li."
Tang Hua came to the chairman to say goodbye, and found the chairman and Li Zongren sitting under the tree chatting.
"I will end my vacation tomorrow. I have some extra temporary work, and I can just catch up by leaving a day or two early."
"Is it about nuclear weapons or missiles?"
"...the plan is to go directly to the northwest from Beidaihe."
Chairman: "Mr. De Ling is the vice chairman, and he will also participate in the military in the Military Commission in the future. He can know about the two bombs."
I see……
Tang Hua nodded: "Qian Xuesen's progress has exceeded expectations. In the past two months, he has worked out a sounding rocket, which is a test rocket with a liquid fuel engine. Now it has been transported to the Wuliangsuhai missile test site."
Li Zongren: "It really is Tang Hua. With such a king of science in charge, there must be no problem with atomic bombs and missiles."
Tang Hua: "Vice Chairman Li, the two-bomb project was carried out by many people working together as a team. In a broad sense, it has also received the full support of the people of the whole country. I am a member of the two-bomb project... If there is If there is anything special, it is probably that I have made more contributions.”
Li Zongren: "If we don't have this atomic bomb, sooner or later there will be a war between China and the United States. Get this thing out and hold it in your hands, and the Americans will be afraid of us from the bottom of their hearts."
Chairman: "With this thing, the peace of our country can be guaranteed."
Li Zongren returned to China for a year of inspection and found that he really couldn't get involved in national construction and economics.
In terms of military affairs, specifically army building, he has nothing to do.
Li Zongren, who is not reconciled to being a mascot, is now mainly studying the problems of the United States, Britain, France and China, especially the United States.After digging a little further, he found that what he intuitively felt when he lived in the United States-nuclear weapons are the foundation of a great power-is becoming more and more correct.
In Beidaihe, it was Li Zongren who kept nagging that the country should develop nuclear weapons.The prime minister beat around the bush and told him that the country has already started to engage in this thing, and Li Zongren was completely relieved.
……
"Going to Wuliangsuhai now can still catch up with the end of the good season. From the end of August to the beginning of September, there happens to be the scenery of 'the sky is blue, the wild is vast, the wind blows the grass and the grass is low, and the cattle and sheep are seen'."
Tang Hua told Zhou Xuan about the situation in Wuliang Suhai.Hearing that Tang Hua has an extra task, Zhou Xuan wants to take Tang Hancheng to have a look.
"Autumn in Wuliangsuhai is earlier than that in Beijing. The temperature turns cooler day and night in early September, which is considered to be autumn. However, multiple sets of clothes should be able to block it."
Zhou Xuan: "When those missiles and rockets are flying, can I go in and see them?"
"You don't need to enter the test site to see it," Tang Hua said. "When the time comes, set up a tent by the seaside of Wuliangsu and stay with herdsmen. At night, you can see meteors, but they don't fall from the sky, but shoot from the ground. To the sky."
After leaving the driver, chef and extra luggage in Beijing, Tang Hua followed the Beijing Baotou Line to Baotou and then took the small single line to Wuliangsuhai.
In 1954, the technical support area of Wuliangsuhai Test Site was not small. There were dormitories and warehouses in a row, and a guest house was sandwiched between them.When Tang Hua approached the technical support area, Qian Xuesen came out to greet him, holding a triangular object in his hand.
"Tang Hua! You didn't remind me that there are such good things!"
Tang Hua looked at the things in Qian Xuesen's hands, which looked like a hollow regular triangle with a side length of 40 cm formed by three wide iron rulers, and an instrument box was built at one corner.
"Let me guess first. Zhu Guozhen from Team B of the laser group? He made the laser top?"
……
"After I returned to China, I discovered that there is nothing in China. I am not a zero-based rocket maker, which is why sounding rockets come out so quickly."
In the bunker-like warehouse in the technical support area, two TK (sounding)-1 and two TK-2 sounding rockets were placed firmly on the trolley. The four rockets had not been filled with fuel, so Tang Hua and Qian Xuesen also No need to wear protective clothing to patrol the warehouse.
Tang Hua: "Even so, two sounding rockets have been produced in more than half a year, and the speed is very fast."
In the original history, when Qian Xuesen returned to China in 1955, he also started with sounding rockets. However, the first sounding rocket was a test product of solid propellant and hit an altitude of 10 kilometers. After that, Qian Xuesen further developed liquid rockets.
Now... Hongqi-2 has been flying randomly in North Korea for a long time, and I don't know how many American planes have been destroyed.The shooting height of Hongqi-2 is 11000~12000 meters.
Then you can skip the solid propellant rocket and go to the TK-1 and TK-2 test phase.
"The chemical plants in Shenyang and Dalian can produce strange chemicals, such as ethylene oxide; the Fushun Aluminum Plant can produce aluminum-magnesium alloys; Dalian, Taiyuan and Chongqing can refine high-strength gun steel; Production of relatively elementary inertial gyroscopes; a missile experiment base with complete facilities has been set up here in Wuliangsuhai; "Qian Xuesen counted the basic supports already owned, "I thought it would be very good to have inertial gyroscopes. But in May this year I went to Tsinghua University, I heard that the first group of the laser research group is making a laser gyroscope."
Tang Hua: "Student Wu Guozhen has been working on this for more than two years. I gave him 3 to 4 years, which is faster than I expected."
Qian Xuesen: "No, the laser group did not complete the laser gyroscope when I went to see it. I helped them solve the last technical problem, and then produced the first batch of prototypes."
Tang Hua: ...
Here's the thing. At the end of 1953, Qian Xuesen made a thorough investigation of the country's industrial and technological foundations.He went to Tsinghua University first, and also saw the series of laser working groups, but Wu Guozhen took the laser team B to Changchun Optical Instrument Factory for help.
When Qian Xuesen finished inspecting Tsinghua University, inspected Beijing, and set off for the Northeast, Wu Guozhen's team happened to solve the problem at the Changchun Optical Instrument Factory and returned to Beijing.
So Qian Xuesen didn't find out that laser gyroscopes were being developed in China until May 1954.
The basic components of a laser gyroscope are a helium-neon laser, three sets of total reflection mirrors and half-transmission mirrors.If you want to make a quadrangular laser gyroscope, there are four sets of lens groups.
Three sets of lenses form a triangular annular optical path. The laser light emitted by the laser is divided into two beams of laser light in opposite directions by the beam splitter, which propagates in the triangular optical path and converges on a certain side.When the laser has no angular displacement, the two laser beams have no optical path difference, and they converge together without interference.
If the lasers are spinning, interference occurs when the two laser beams meet.The angular displacement of the object can be measured by using the interference fringes of light, and the angular velocity at which the missile is rotating can be calculated.
The combination of three laser gyro devices can measure the strength of the missile's X, Y, and Z three-axis rotation.Then with 3 accelerometers, the flight trajectory of the missile in the air is tantamount to figuring out.
First of all, the laser gyro has excellent measurement accuracy.Secondly, its core has no high-speed rotating parts and is difficult to damage.In addition, the dynamic range of the laser gyro measurement is very wide, and it can sense the rotation from 1500 degrees per second to 0.001 degrees per hour.
"So, you installed the laser gyro on the sounding rocket?" Tang Hua asked.