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Method for manufacturing end socket of voltage stabilizer for nuclear power

A manufacturing method and a technology of a voltage stabilizer, which are applied in the field of pressure vessels, can solve the problems of long manufacturing cycle, difficult to achieve high head shape, size and quality, and high manufacturing cost, and achieve the advantages of shortened manufacturing cycle, qualified size and reduced cost. Effect

Active Publication Date: 2014-03-19
泰安东润核电装备有限公司
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Problems solved by technology

[0002] The voltage stabilizer is one of the important equipment of nuclear power plants, and its safety level is Class I. At present, the head of the voltage stabilizer of the nuclear power plant built in my country is forged into a flat plate, and then reheated, stamped and deep-drawn. Not only the manufacturing cycle is long, but also the manufacturing cost High, the shape, size and quality of the head are difficult to reach a high level

Method used

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  • Method for manufacturing end socket of voltage stabilizer for nuclear power
  • Method for manufacturing end socket of voltage stabilizer for nuclear power
  • Method for manufacturing end socket of voltage stabilizer for nuclear power

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Embodiment Construction

[0015] 16MND5 low-alloy steel is the main pressure material for nuclear power equipment. It is used for pressure vessel shells and components of primary equipment with excellent performance. The following table shows the chemical composition of 16MND5 low-alloy steel.

[0016] Table 1: Chemical Composition of 16MND5 Low Alloy Steel

[0017]

[0018] Due to the complex chemical composition of 16MND5 low-alloy steel, in the process of using 16MND5 low-alloy steel plate to manufacture the head of a voltage stabilizer for nuclear power, in order to ensure that the head has good mechanical properties and precise dimensions, the following steps must be implemented :

[0019] a. Accurately design and manufacture the hemispherical upper mold and circular lower mold of the molding mold according to the molding size of the head. According to the design drawings and technical requirements of the head, design calculations and based on rich manufacturing experience and a large number o...

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Abstract

The invention discloses a method for manufacturing an end socket of a voltage stabilizer for nuclear power. The integral end socket is subjected to hot stamping deep drawing by a 16MND5 low-alloy steel plate, and is subjected to heat treatment of normalizing and tempering to form the end socket, which is reliable in quality, accurate in size and high in mechanical property, of the voltage stabilizer for nuclear power. In the method, the weight of the end socket manufactured by the low-alloy steel plate can be reduced by about half compared with that of the end socket manufactured by forging piece materials, the manufacturing period is short and the cost is reduced greatly.

Description

Technical field: [0001] The invention relates to a pressure vessel, in particular to a method for manufacturing a nuclear power voltage stabilizer head. Background technique: [0002] The voltage stabilizer is one of the important equipment of nuclear power plants, and its safety level is Class I. At present, the head of the voltage stabilizer of the nuclear power plant built in my country is forged into a flat plate, and then hot stamped and deep drawn. Not only the manufacturing cycle is long, but also the manufacturing cost High, the shape, size and quality of the head are difficult to reach a high level. Invention content: [0003] The purpose of the present invention is to avoid the existing technical problems and provide a method for manufacturing the head of a voltage stabilizer for nuclear power with reliable quality, precise size and low cost. [0004] The technical scheme of the present invention is: the 16MND5 low-alloy steel plate is processed according to the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/00B21D22/20C21D1/18C21D9/00
Inventor 王玉庆冯振刚张圣水韩庆明
Owner 泰安东润核电装备有限公司
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