Manufacturing method of steam generator forge piece for sodium-cooled fast reactor

Abstract

The invention provides a manufacturing method of a steam generator forge piece for a sodium-cooled fast reactor. The manufacturing method comprises the following steps that a steel ingot raw materialis selected; the selected steel ingot raw material is smelted; the smelted steel ingot raw material is forged into the forge piece for forming a main body of the steam generator by using a forging process; heat treatment is carried out on the forge piece; and physical and chemical tests are carried out on the forge piece subjected to heat treatment, wherein the step that the smelted steel ingot raw material is forged into the forge piece for forming the main body of the steam generator by using the forging process comprises the step of carrying out a free forging process and a moulding bed forging process on the smelted steel ingot raw material. According to the manufacturing method of the steam generator forge piece, the forge piece which is complex in structure and can meet the environment requirement of the sodium-cooled fast reactor can be manufactured, so that a basic guarantee is provided for research, development and use of the sodium-cooled fast reactor steam generator.

Description

technical field [0001] The present invention relates to a manufacturing method of a main part of a steam generator, in particular to a manufacturing method of a main part of a steam generator used in a sodium-cooled fast reactor. Background technique [0002] The sodium-cooled fast reactor belongs to the fourth-generation nuclear power reactor type, which can multiply nuclear fuel. Compared with the pressurized water reactor, the utilization rate of uranium resources can be increased from 1%-2% to 60%-70%. Moreover, most of the long-lived radionuclides produced in thermal reactor nuclear power plants can be converted into short-lived fission products through fission reactions in fast reactors to minimize radioactive waste. [0003] Therefore, the sodium-cooled fast reactor is the main reactor type for the development of the fourth-generation advanced nuclear energy system in China, and it is also an important strategic choice for China's nuclear energy technology to achieve ...

AI Technical Summary

Problems solved by technology

Although there are manufacturing methods for forgings in the fields of petroleum and chemical industry in the prior art, the forgings obtained by these methods cannot meet the application requirements of the nuclear industry. Therefore, it is necessary to propose a manufacturing method for steam generator forgings that meets the application requirements of the nuclear industry.

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