Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Active cooling device and cooling method for laser repairing single crystal turbine blade

A turbine blade and active cooling technology, applied in chemical instruments and methods, single crystal growth, crystal growth, etc., can solve problems such as difficulty in meeting the repair requirements of single crystal blades, affecting blade performance, and prone to cracks at grain boundaries

Active Publication Date: 2018-06-26
SHANGHAI JIAOTONG UNIV
View PDF4 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Once the grain boundary appears, cracks are likely to appear at the grain boundary and extend along the grain boundary under high thermal stress, directly affecting the performance of the repaired blade, and it is difficult to meet the repair requirements of single crystal blades

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Active cooling device and cooling method for laser repairing single crystal turbine blade
  • Active cooling device and cooling method for laser repairing single crystal turbine blade
  • Active cooling device and cooling method for laser repairing single crystal turbine blade

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] The specific embodiments of the present invention are given below in conjunction with the accompanying drawings, but the present invention is not limited to the following embodiments. Advantages and features of the present invention will be apparent from the following description and claims. It should be noted that all the drawings are in very simplified form and use imprecise ratios, which are only used for the purpose of conveniently and clearly assisting in describing the embodiments of the present invention.

[0027] Please refer to figure 1 , figure 1 Shown is a schematic structural diagram of an active cooling device for laser repairing single crystal turbine blades according to a preferred embodiment of the present invention. The present invention proposes an active cooling device for laser repairing single crystal turbine blades, comprising: an air compressor, a heat exchanger and an annular cooling device, wherein the air compressor compresses the gas to be c...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides an active cooling device and method for laser repairing of a single crystal turbine blade. The device comprises an air compressor, a heat exchanger and an annular cooling device. The air compressor compresses air to be cooled into high-speed and high-pressure airflow, and the airflow is introduced into the heat exchanger. After the introduced airflow is cooled by the heat exchanger, the airflow is introduced into the annular cooling device. The annular cooling device is arranged above a workbench of a laser cladding system and arranged around a workpiece. According to the active cooling device and method for laser repairing of the single crystal turbine blade, the volume and temperature of the cooled airflow and the position and angle of a cooling nozzle are adjusted, so that the best active cooling effect is achieved in the laser repairing process.

Description

technical field [0001] The invention relates to the fields of laser repair and material microstructure growth control, and particularly relates to an active cooling device and cooling method for repairing single crystal turbine blades. Background technique [0002] Aeroengines play an important role in the modern aviation industry. The performance index of the aero-engine directly determines the flight performance of the aircraft. In recent decades, the development of aero-engines is closely related to the development of aeronautical materials, especially high-temperature-resistant materials. At present, nickel-based single crystal alloys have been widely used as materials for high-temperature turbine blades of aero-engines. Nickel-based single crystal superalloys have increased the operating temperature of aero-engines from the initial 850°C to more than 1600°C due to their excellent high-temperature creep resistance and fatigue resistance. Single crystal turbine blades ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C23C24/10C30B11/00
CPCC23C24/10C30B11/003
Inventor 刘朝阳顾剑锋
Owner SHANGHAI JIAOTONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com