After new China holds water, to break western state nuclear monopoly, proper motion of our country be determined develops atom bomb. Russia got during help energetically, they helped us build project of 156 large projects, include the field of many heavy industry such as railroad, bridge, electric power, mineral products, still have the nuclear industry facility that we are badly in need of, plant of many nuclear fuel builds in and other places of Hunan, Gansu Province, Jiangxi, include Lanzhou among them 504 factories.
Everybody knows, the biggest bottleneck that limits nuclear industry development is not a technology, however raw material. Production atom bomb needs many high concentration enriched uranium, and uranous average content is in the lithosphere hundred 2.5, every tons of lithosphere just has 2.5 to overcome uranium in material, 235 ability use the uranium that has 0.72% only among them at making atom bomb. The United States tries the first exploded uranous atom bomb " little boy " of 60 kilograms of enriched uranium, press average to calculate, need abstracts stone of 20 thousand tons of uranium to just make an atom bomb quite.
Had uranous raw material far insufficient still, real difficulty is in uranous the depart of 235. Uranous 235 with uranium 235 it is isotropy, physical property and chemistry are almost identical, there is the difference of little very little on quality only. Scientists use this bits of difference, invented aeriform centrifugal process, with thousands of centrifugal will uranous 235 He You 238 depart. Accordingly, enriched uranium centrifugal just is the crucial technology of block nuclear proliferation.
Our country in those days for preparation enriched uranium, employed uranous producing area early or late tens of 10 thousand people start big production, just be in weak point the collect inside a few years is neat. 504 factories are base of among them an uranous production, the nuclear fuel that all nuclear projects use our country is almost all out this factory, it is the cradle of Chinese nucleus industry, the kindling of all nucleus project. It is such kindling enterprise, change his profession however sell had ice cream.
The thing is such, transition of structure of the socioeconomy after reforming and opening, everything gives way to expand economy, a lot of war industry enterprises begin to throw civil market, for instance research and development annihilate - the Cheng Fei of 20, very long period of time is in manufacturing washing machine and autocycle. 504 factories also suddenly change one's identity, begin to produce ice cream, the butyric taste that comes out with centrifugal production allegedly is first-rate, love by Gansu Province people. Cudgel one's brains for of the country that do not have a nucleus also does the centrifugal that be less than, absolutely did not think of to be in our country is to use those who make cream, do this calculate do not calculate a reckless waste of food?