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Casting technology for CAP1400 nuclear main pump shell

A casting process, nuclear main pump technology, applied in the direction of manufacturing tools, casting molding equipment, casting molds, etc., to achieve the effect of satisfying the quality of castings, improving research efficiency, and reducing research costs

Inactive Publication Date: 2017-09-22
DALIAN HUARUI HEAVY IND GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above reasons are a serious obstacle for my country to overcome the difficulties in manufacturing nuclear main pumps and improve the localization rate of nuclear power equipment.

Method used

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  • Casting technology for CAP1400 nuclear main pump shell
  • Casting technology for CAP1400 nuclear main pump shell
  • Casting technology for CAP1400 nuclear main pump shell

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Experimental program
Comparison scheme
Effect test

Embodiment

[0043] The establishment process of the technical solution is described in conjunction with the accompanying drawings, which are specifically divided into the following steps:

[0044] (1) Analysis of casting characteristics of nuclear main pump

[0045] Before carrying out casting process design, fully study the performance requirements, material and structural characteristics of castings, and carry out process design according to the characteristics of castings. According to the casting drawings, the 3D modeling software UG9.0 is used to construct the 3D model of the casting, such as figure 1 shown.

[0046] CAP1400 nuclear main pump casing, the main body is a gyratory body with a large inner cavity, one side protrudes, the wall thickness of the casting is uneven, the upper and lower sides meet the side wall to form a heat joint, and the upper part is symmetrically distributed with four lifting lugs. The outer frame size of the casting is 2817mm╳2235mm╳1870mm. Using the vo...

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Abstract

The invention discloses a casting process of a CAP1400 nuclear main pump shell, which belongs to the technical field of casting. The process uses molten metal to enter the mold from the sprue through the runner and the inner runner in sequence. The pouring temperature is 1580°C and the pouring time is 120s; Port chill and second port chill optimize the casting process. The casting process is optimized by ProCAST casting simulation software, and the coupling simulation calculation of flow field, temperature field and stress field is carried out. Through the preliminary design of the casting process, combined with the numerical simulation optimization method, the research efficiency can be improved, the cost of the casting process research can be reduced, and the successful casting of the CAP1400 nuclear main pump can be finally realized, and the relevant technical requirements can be met.

Description

technical field [0001] The invention relates to a casting process of a CAP1400 nuclear main pump casing, which belongs to the technical field of casting. Background technique [0002] Nuclear power plants only need to consume a small amount of nuclear fuel to generate a large amount of electricity, and the cost of electricity per kilowatt-hour is more than 20% lower than that of thermal power plants. Nuclear power plants also greatly reduce the amount of fuel transported. In addition, nuclear power has little pollution and almost zero emissions, which is in line with the development direction of the energy industry for China, which is under great environmental pressure. As a safe, economical and clean energy with mature technology and large-scale production, nuclear power will have more room for development in my country's long-term planning. It is estimated that by 2020, my country's installed nuclear power capacity in operation will reach 60 million kilowatts. [0003] ...

Claims

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Application Information

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IPC IPC(8): B22C9/24B22C9/08
CPCB22C9/24B22C9/082
Inventor 杨继伟刘宝惜郝海周文龙王晗范世超
Owner DALIAN HUARUI HEAVY IND GRP CO LTD
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