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Preparation method of steel lining prefabricated moulding bed in nuclear power station

A manufacturing method and technology for steel lining, which are applied in the field of making prefabricated tire molds, can solve the problem of not conforming to the manufacturing process of steel lining prefabricated tire molds for nuclear power plants and the like.

Active Publication Date: 2010-12-15
CHINA NUCLEAR IND HUAXING CONSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no nuclear power plant steel lining prefabricated tire mold manufacturing process that meets the aforementioned requirements at present.

Method used

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  • Preparation method of steel lining prefabricated moulding bed in nuclear power station
  • Preparation method of steel lining prefabricated moulding bed in nuclear power station
  • Preparation method of steel lining prefabricated moulding bed in nuclear power station

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Embodiment 1

[0020] Such as figure 1 Shown, be the nuclear power plant steel lining prefabricated tire mold of the present embodiment, figure 2 , image 3 , Figure 4 respectively figure 1 A-A, B-B, C-C sectional views.

[0021] The nuclear power plant steel lining prefabricated tire mold manufacturing method provided by this embodiment comprises the following steps:

[0022] The first step, blanking cutting and correction - cut out the base section steel, the pole support 4 and the connecting angle steel between the pole supports according to the lofting diagram, and correct them (for parts with out-of-tolerance deformation after cutting, use cold and hot correction as appropriate) ), the connecting angle steel between the pole supports includes a longitudinal arc angle steel 1 and a transverse busbar angle steel 2, and the arc radius R=18500mm of the longitudinal arc angle steel 1 (the inner wall radius of the steel lining cylinder); the base section steel is the common type I25a I...

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Abstract

The invention relates to a preparation method of a prefabricated moulding bed, which is widely applied to steel lining prefabrication construction in a nuclear power station particularly and belongs to the technical field of construction of the nuclear power station. The preparation method comprises the following steps of, firstly, welding base H-shaped steel into a meshy block structure; welding an upright post on the meshy block structure; respectively welding longitudinal arc angle steel with a longitudinal upright post support, and welding traverse bus angle steel with a traverse upright post support respectively; and connecting the two upright post supports mutually to form a support structure. The process can effectively decrease the integral welding deflection, and is favorable for guaranteeing the integral stability of a construction member. The moulding bed structure prepared according to the steps can completely achieve the prefabricating precision of a nuclear island steel lining, meet the strict requirements on the level 1 nuclear quality and the nuclear safety, and guarantee the stability of production quality.

Description

technical field [0001] The invention relates to a method for making a prefabricated tire mold, which is widely used in the prefabricated construction of steel linings in nuclear power plants and belongs to the technical field of nuclear power plant construction. Background technique [0002] With the rapid development of my country's national economy, it is estimated that by 2020, the installed capacity of nuclear power plants will increase from the current 8.7 million kilowatts to 36 million kilowatts. This means that in the next fifteen years, nuclear power construction will reach a new level. [0003] The steel lining of the nuclear island containment vessel can be regarded as a sealed shell composed of four parts: the bottom plate, the truncated cone, the cylinder and the dome. The lower opening of the steel-lined cylinder is installed on the truncated cone at the bottom, and the upper opening is docked with the steel-lined dome; the cylinder is composed of 12 installat...

Claims

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Application Information

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IPC IPC(8): B23P15/24
Inventor 丁健裴习平虞镇昊孙利麻向斌
Owner CHINA NUCLEAR IND HUAXING CONSTR
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