Method for manufacturing large curved-surface component of turbine

A turbine, curved surface technology used in the manufacture of large curved components for use in turbines

Inactive Publication Date: 2016-03-30
SIEMENS CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method is not suitable for products that require high precision and can be mass-produced, such as gas turbines or steam turbines

Method used

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  • Method for manufacturing large curved-surface component of turbine
  • Method for manufacturing large curved-surface component of turbine

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Experimental program
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Embodiment Construction

[0017] In order to make the purpose, technical solution and advantages of the present invention clearer, the following examples are given to further describe the present invention in detail.

[0018] figure 1 The flow chart of shows an embodiment of the method of the present invention, which relates to the method of manufacturing a large curved surface part for a turbine, comprising the following steps in sequence: Step S1 cutting a metal plate according to specific dimensions and according to the physical properties of said metal plate Selecting a hydraulic press; step S2 heating the metal plate to 400°C to 1200°C; step S3 putting the metal plate into a die and using the hydraulic press to maintain a pressure of 5MPa to 20MPa for 2 to 10 minutes to compress the metal The panels are molded into curved parts. When selecting a hydraulic press, those skilled in the art will understand that various physical properties such as the thickness, area, and weight of the metal plate sho...

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PUM

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Abstract

The invention relates to a method for manufacturing a large curved-surface component of a turbine. The method sequentially comprises the following steps that a metal plate is cut according to a specific dimension, and a hydraulic press is selected according to the physical characteristics of the metal plate; and the metal plate is heated to the temperature of 400-1200 DEG C; and the metal plate is placed in a pressing die, and the pressure is kept being 5-20 MPa for two to ten minutes by means of the hydraulic press, so that the metal plate is pressed into the curved-surface component through the die. By the adoption of the method for manufacturing the large curved-surface component of the turbine, the manufacturing efficiency and quality of the large curved-surface component can be significantly improved, and the machining technique is greatly simplified.

Description

technical field [0001] The present invention relates to methods of manufacturing large curved parts, in particular large curved parts for turbomachines. Background technique [0002] Turbomachines, such as gas turbines, steam turbines, water turbines, etc., often have large curved parts, such as the irregular three-dimensional curved parts used to make combustor blocks and gas turbine blocks. The thickness of large curved surface parts is usually more than 30mm and the radius of curvature is usually more than 1.5m. Due to the large size of these curved surface parts, it brings a lot of inconvenience to processing and manufacturing, and cannot be processed and manufactured by the same processing and manufacturing methods as small parts. The existing processing technology of large curved surface parts is to bend several steel plates into parts of specific shapes, and then manually weld these parts into a larger whole, and finally perform heat treatment and adjust its geometri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D11/20B21D11/22
Inventor 蒋喆梁湧汤禹成
Owner SIEMENS CHINA
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