Sampling method for inspection of water chamber seal head forging of reactor steam generator

A technology of steam generator and water chamber head, which is applied in sampling devices and other directions, can solve the problems of easy damage to local locations and difficult to ensure consistent performance of forgings, and achieve the effect of reducing costs.

Active Publication Date: 2014-10-15
SUZHOU NUCLEAR POWER RES INST +2
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Problems solved by technology

Forging, punching and flanging must be heated three times, and there are two more times in the middle that need to be cooled to room temperature before machining, so the internal quality of forgings is not easy to guarantee;
[0015]The heat treatment process is easy to produce deformation, t...

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  • Sampling method for inspection of water chamber seal head forging of reactor steam generator
  • Sampling method for inspection of water chamber seal head forging of reactor steam generator
  • Sampling method for inspection of water chamber seal head forging of reactor steam generator

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Embodiment Construction

[0045] The present invention will be described in further detail below in conjunction with specific examples. It should be understood that these embodiments are used to illustrate the basic principles, main features and advantages of the present invention, and the present invention is not limited by the scope of the following embodiments. The implementation conditions used in the examples can be further adjusted according to specific requirements, and the unspecified implementation conditions are usually the conditions in routine experiments.

[0046] The water chamber sealing head 1 comprises: a sealing head body, a nozzle end, and an inclined nozzle, the nozzle end has a first sample ring 2, and the inclined nozzle has a second sample 3, and the water chamber sealing The head 1 is the lower head, the outer diameter D1 of the nozzle end of the water chamber head 1 is 3500-4000 mm, the inner diameter D2 is 3000-3100 mm, the outer diameter D3 of the inclined nozzle is 1000-...

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Abstract

The invention relates to a sampling method for quality inspection of a water chamber seal head forging of a reactor steam generator. By performing composition analysis and hardness test on the water chamber seal head forging and conducting mechanical performance test and metallographic structure examination on an acquired sample, the overall quality of the water chamber seal head forging of the reactor steam generator can be inspected comprehensively, and complete assessment can be carried out on the manufacturing process of the water chamber seal head forging. The method is consistent with the process assessment requirement of nuclear power norm RCC-M, complete destruction of the water chamber seal head forging is not needed, and the water chamber seal head forging can be used as a product continuously after sampling, thereby maximumly reducing the sampling cost.

Description

technical field [0001] The invention relates to a sampling method for quality inspection of a water chamber head of a reactor steam generator. Background technique [0002] At present, the world has entered a new round of nuclear power development. Many countries are actively preparing to build new nuclear power units. However, the production capacity of large-scale castings and forgings in nuclear islands around the world is very limited, and the manufacturing technology is mainly controlled in a few. In the manufacturing plant, this can no longer meet the needs of the development of nuclear power all over the world. Combined with our country's policy of developing nuclear power and the localization of nuclear power equipment, to achieve the goal of my country's nuclear power development plan, it is necessary to realize the localization of the forgings of the water chamber head of the reactor steam generator. In order to truly realize the localization of the water chamber ...

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Application Information

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IPC IPC(8): G01N1/04
Inventor 吴洪张文中邹平国杨文斌朱喜斌刘钊刘璐张绍军黄大鹏阚玉琦梁书华
Owner SUZHOU NUCLEAR POWER RES INST
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