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High-temperature-resistant turbine disc based on ceramic material

A ceramic material, high temperature resistant technology, applied in the direction of blade support elements, engine elements, machines/engines, etc., to avoid ceramic breakage and peeling, prevent damage, and improve shear resistance.

Pending Publication Date: 2021-03-30
NANCHANG HANGKONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In order to make the engine turbine blades withstand higher and higher temperatures, conventional metal materials can no longer meet the demand, and the use of ceramic-based materials will be an inevitable trend for turbine blades

Method used

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  • High-temperature-resistant turbine disc based on ceramic material
  • High-temperature-resistant turbine disc based on ceramic material
  • High-temperature-resistant turbine disc based on ceramic material

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

[0028] Such as Figure 1 to Figure 3 As shown, a high-temperature-resistant turbine disk based on ceramic materials includes a turbine body, and the turbine body includes a ceramic disk 1 and a ceramic blade 2, and the ceramic disk 1 and ceramic blade 2 are made of the same or different high-temperature-resistant ceramic materials The center disc shaft of the ceramic disc 1 is provided with a front counterweight 3 for dynamic balance of the turbine body, and the front counterweight 3 is bonded to the ceramic disc 1 through a bonding metal sheet 4 At the position of the central disk axis, the front counterweight plate 3 is on the same side as the airflow direction, and the tip of the ceramic blade 2 is provided with a tip wear-resistant coating 5 .

[0029] As a preferred embodiment, the adhesiv...

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Abstract

The invention relates to a high-temperature-resistant turbine disc based on ceramic materials. The turbine disc comprises a turbine main body, the turbine main body comprises a ceramic disc and ceramic blades, the ceramic disc and the ceramic blades are made of the same or different high-temperature-resistant ceramic materials, and a front weight stack is arranged at the position of a central discshaft of the ceramic disc, and is used for dynamic balance balancing of the turbine main body, the front weight stack is bonded to the position of the central disc shaft of the ceramic disc through bonding metal sheets, the front weight stack is located at the same side as the incoming direction of airflow, and blade tip easy-to-wear coatings are arranged at blade tips of the ceramic blades. A plurality of unique structures are designed according to the characteristics of ceramic materials, so that the high-temperature-resistant turbine disc has the advantages that dynamic balance material removal is facilitated, the anti-shearing capacity is enhanced, blade tip scraping is avoided and the like, and the reliability and safety of assembly and operation of the ceramic-based turbine disc areimproved.

Description

technical field [0001] The invention relates to a high-temperature-resistant turbine disk based on ceramic materials, which belongs to the design direction of the engine turbine disk structure in the field of aviation technology. Background technique [0002] It is the relentless pursuit of designers to increase the temperature before the turbine of an aero-engine. A higher temperature before the turbine can greatly improve the overall performance of the engine, but the temperature resistance requirements for the materials of the turbine blades also increase accordingly. In order to make the engine turbine blades withstand higher and higher temperatures, conventional metal materials can no longer meet the demand, and the use of ceramic-based materials will be an inevitable trend for turbine blades. In recent years, the processing and molding technology of ceramic materials has become more and more mature, and the use of ceramic-based materials to make turbine disks will beco...

Claims

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Application Information

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IPC IPC(8): F01D5/02F01D5/28F01D5/20
CPCF01D5/02F01D5/027F01D5/284F01D5/20
Inventor 向鑫胡晓安孙海俊盛志强吴锦武刘小冲
Owner NANCHANG HANGKONG UNIVERSITY
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