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

Aluminum alloy grain refiner and preparation method thereof

A technology of grain refiner and aluminum alloy, which is applied in the field of metal materials and metal material processing, can solve the problems of poor wettability, unsatisfactory anti-fading performance, and influence on the effect of grain refinement, and achieve short production process , good industrial application prospects, and the effect of improving comprehensive mechanical properties

Inactive Publication Date: 2016-05-04
HUAZHONG UNIV OF SCI & TECH
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the commonly used Al-Ti-B master alloy refiner has unsatisfactory anti-fading performance, because its internal TiB 2 Particles are easy to aggregate and precipitate and are easily "poisoned" by atoms such as Zr and Cr, which affect the effect of grain refinement
In addition, the addition of ultrafine ceramic particles as a refiner can provide a large number of dispersed particles to promote heterogeneous nucleation, and can refine the metal and alloy structures during solidification and rolling deformation. Although it has good controllability, Suitable for industrial production, but there is a problem of poor wettability

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
  • Aluminum alloy grain refiner and preparation method thereof
  • Aluminum alloy grain refiner and preparation method thereof
  • Aluminum alloy grain refiner and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The 30nm TiN powder and the 10μm Ti powder were prepared into powder by mass fraction of 1:1, and the mixed powder was placed in a ball mill, and the Φ10mm ball was used for continuous one-way ball milling for 40 minutes to obtain grain refinement. agent.

Embodiment 2

[0025] The 50nm TiN powder and the 30μm Ti powder are prepared into powder by mass fraction of 1:50, and the mixed powder is put into a ball mill, and the Φ8mm ball is used for continuous one-way ball milling for 60 minutes to obtain grain refinement. agent.

Embodiment 3

[0027] 50nm TiN powder and 30μm Ti powder were prepared into powder by mass fraction of 1:20, and the mixed powder was placed in a ball mill, and Φ8mm balls were used for continuous one-way ball milling for 20 minutes to obtain grain refinement. agent.

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 aluminum alloy grain refiner and a preparation method thereof. Aiming at the problem of the existing methods adopting Al-Ti-B as an intermediate alloy refiner that the decay resistance is poor and the problem of the existing methods adopting additionally-added ultrafine ceramic granules as a refiner that the wettability is relatively poor, the invention provides a TiN and Ti powder refiner and a preparation method thereof, wherein the refiner is prepared through mixing TiN powder and Ti powder according to a certain part (by mass) ratio and carrying out ball-milling. According to the refiner provided by the invention, the refining of as-cast tissue of aluminum alloy can be achieved, and the comprehensive mechanical properties of the alloy are improved, so that the refiner has a relatively good actual application value. The preparation method provided by the invention is simple and reasonable in process and short in production flow, thereby having a good industrial application prospect.

Description

technical field [0001] The invention belongs to the field of metal materials and metal material processing, and more particularly relates to a refiner with remarkable effect and a preparation method thereof. Background technique [0002] Aluminum alloy has high strength and good plasticity. It is an indispensable and important structural material for many military and civilian transportation, home improvement and other industries. It has an important strategic position in national defense construction and national economic development. In industrial production, the casting process is generally used to make billets. Due to the high degree of alloying and the wide two-phase area, coarse grains are prone to occur, and a large number of non-equilibrium eutectic structures will be generated at the grain boundaries and dendrite boundaries, and the dendrite segregation is serious, which affects the casting. Subsequent processing of ingots and product organization and properties. T...

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
IPC IPC(8): C22C1/02C22C1/06C22C21/00
CPCC22C1/026C22C1/06C22C21/00
Inventor 蔡启舟李欣蔚赵炳怡李冰肖亚婷
Owner HUAZHONG UNIV OF SCI & TECH
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