Anti-vibration alloy material for nuclear power station steam generator and preparation process thereof

A technology of steam generators and alloy materials, which is applied in the field of anti-vibration materials, can solve the problems of manpower, financial resources and time waste, increase the risk of maintenance personnel being exposed to radioactive radiation, etc., achieve extended service life, reasonable composition design, and reduce costs Effect

CN102732751AActive Publication Date: 2012-10-17JIANGSU XINHUA ALLOY ELECTRIC
3 Cites 16 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2012-10-17

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
Patent Text Reader

Abstract

The invention discloses an anti-vibration alloy material for a nuclear power station steam generator. The anti-vibration alloy material is used for fabricating anti-vibration strips, retaining rings and retaining strips of nuclear power station steam generators and comprises the following components by weight percent: C 0.015 to 0.030%, Si 0.05 to 0.5%, Mn 0.05 to 0.50%, P <= 0.015%, S <= 0.010%, Cr 28.0 to 31.0%, Ni 58.0 to 63%, Cu 0.001 to 0.20%, Ti 0.005 to 0.5%, Al 0.005 to 0.5%, Fe 7.0 to 11.0%, Re 0.01 to 1.0%, Nb 0.001 to 0.10% and Mo 0.001 to 0.10%, with the balance being unavoidable impurities. A preparation process for the material comprises the following steps: A, preparation of raw materials according to weight percent of the components of the anti-vibration alloy material; B, cleaning and drying of the surfaces of the prepared raw materials and high vacuum smelting of the raw materials in a vacuum smelting furnace according to a melting order; C, re-melting and refining of electroslag; D, forging; E, hot rolling; F, vacuum solid solution heat treatment; G, surface processing of bars; and H, multi-pass drawing, annealing, drawing and linear cutting. A finished product of the anti-vibration material is obtained after the above-mentioned steps; design of the components of the material is reasonable, and the preparation process is advanced.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to an anti-vibration material in the technical field of new materials, in particular to an anti-vibration alloy material for a steam generator in a nuclear power plant and a preparation method thereof. strip material. Background technique

[0002] AP1000 is the third-generation advanced pressurized water reactor nuclear power unit developed by Westinghouse Corporation. The main feature that distinguishes AP1000 from the second generation plus CPR1000 pressurized water reactor nuclear power unit is the "passive" safety system. The "passive" design concept is to use the inherent thermal-hydraulic characteristics to simplify the design of the safety system, so that the safety measures of the nuclear power plant no longer rely on the operation of active equipment such as pumps and fans, thereby greatly reducing the number of safety-level valves, Pumps, cables and anti-seismic workshops; class 1E emergency diesel generator system is ...

Examples

Embodiment Construction

[0034]In order to deepen the understanding of the present invention, the present invention will be further described below in conjunction with the examples. The following examples are only used to explain the present invention, and do not constitute a limitation to the protection scope of the present invention.

[0035] An anti-vibration alloy material for a steam generator in a nuclear power plant, which contains the following components by weight percentage: C: 0.015-0.030%; Si: 0.05-0.5%; Mn: 0.05-0.50%; P: ≤0.015%; S: ≤0.010%; Cr: 28.0~31.0%; Ni: 58.0~63%; Cu: 0.001~0.20%; Ti: 0.005~0.5%; Al: 0.005~0.5%; Fe: 7.0~11.0%; Re: 0.01~ 1.0%; Nb: 0.001~0.10%; Mo: 0.001~0.10%; the balance is unavoidable impurities; wherein the purity of Si, Mn, Cr, Ni, Nb, Mo, Cu, Ti, Al, Fe is greater than 99%, the rare earth Re is a mixed rare earth metal, its purity is greater than 99%, and the block size is 60*100mm.

[0036] The preparation method of an anti-vibration alloy material for a ste...