A method for injection molding of high-strength aluminum alloy turbine impeller

An injection molding, turbine impeller technology, applied in turbines, metal processing equipment, transportation and packaging, etc., can solve the problems of not being suitable for mechanical properties, low mechanical properties requirements, limiting turbine life, etc., to achieve good mechanical properties, The effect of uniform tissue composition and convenient removal

Active Publication Date: 2019-08-02
安徽恒利增材制造科技有限公司
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For a long time, investment precision casting has been the main forming method of supercharged turbines. Since the casting process cannot completely avoid casting defects such as non-metallic inclusions, pores, shrinkage cavities, and element segregation, the further improvement of turbine life is largely limited.
Metal injection molding technology (MIM) does have some incomparable advantages compared with traditional processing methods, and can overcome the casting defects that are inevitable in the precision casting process, but the main reason that limits the development of MIM technology is: MIM technology needs to add binders and degreasing process limitations, even to a certain extent, MIM technology can solve the problem of one-time shaping of complex shapes, but it can only be used on product parts with low precision, small size, and low mechanical performance requirements, which is not suitable for application Parts with high mechanical performance requirements

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] The technical solutions in the present invention are clearly and completely described below in conjunction with the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0027] A method for injection molding of a high-strength aluminum alloy turbine impeller, comprising the following steps:

[0028] Step 1: Weigh the following raw material powders by weight: Al93.924%, Cu4.87%, Mn0.506%, Ti0.27%, Cd0.16%, V0.12%, Zr0.15%, and put them into the container and pour 100 parts by weight of absolute ethanol into the container, put the container into the KQ3200B ultrasonic instrument, use a stirrer to stir and ultrasonically vibrate for 15 minutes to fully disperse the agglomerated powder, and then put the Pour the mixture into a polyurethane mixing tank, then put cemented carbide balls at a ball-to-materia...

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

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
purityaaaaaaaaaa
Login to view more

Abstract

A high-strength aluminum alloy turbine impeller injection molding method belongs to the technical field of aero-engine turbine preparation, including raw material configuration, adhesive batching, primary melting, secondary melting, injection molding, solvent degreasing, thermal degreasing, sintering, solid solution Processing and aging. By adopting the method of the invention, the mechanical properties of the turbine impeller alloy are greatly improved through the improvement of composition uniformity and grain refinement, and the strength can meet the use requirements of the aeroengine turbine impeller.

Description

technical field [0001] The invention belongs to the technical field of aero-engine turbine preparation, and in particular relates to a high-strength aluminum alloy turbine impeller injection molding method. Background technique [0002] The superalloy turbine is the core part of the aero-engine turbocharger, and its performance directly determines the energy-saving and emission-reduction effect of the turbocharged engine. The supercharged turbine is subjected to high temperature and high speed rotation and the alternating stress caused by the impact and vibration of the blade airflow during service, and is prone to fatigue damage. Therefore, there are strict requirements on the quality of the turbocharged turbine. For a long time, investment precision casting has been the main forming method of supercharged turbines. Since the casting process cannot completely avoid casting defects such as non-metallic inclusions, pores, shrinkage cavities, and element segregation, the furth...

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): B22F5/00B22F3/22B22F1/00B22F3/10B22F3/24
CPCB22F3/1017B22F3/225B22F3/24B22F5/009B22F2003/248B22F2998/10B22F1/103B22F1/10
Inventor 夏建强常峰
Owner 安徽恒利增材制造科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap