Aluminum alloy refining agent

A refining agent and aluminum alloy technology, applied in the field of aluminum alloy refining agent, can solve the problems of unsatisfactory removal effect, large amount of refining agent, environmental problems, etc., to improve quality and processing performance, and increase the uniformity of internal structure. The effect of grain refinement and aluminum slag yield reduction

Active Publication Date: 2014-03-19
ALNAN ALUMINIUM CO LTD
View PDF6 Cites 31 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Although the above-mentioned aluminum alloy refining agent can remove some inclusions and reduce the hydrogen content, but for the smelting process of aluminum alloys with more inclusions, especially the removal effect of inclusions such as fine inclusions and non-metal oxides cannot meet the requir

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 1

[0027] Weigh KCl: 35%, NaCl: 40%, CaF by mass percentage 2 :5%, Na 3 AlF 6 :8%, Mg2 N 3 :5%, C 2 Cl 6 : 3% and rare earth lanthanum and cerium: 0.2%, the mass percentage of lanthanum and cerium is 1:1, mix the above several materials, stir evenly, put them into an electric furnace for overheating and melting to remove crystal water, cool after being out of the furnace, and finally sieve The aluminum alloy refining agent of the present invention can be obtained by filtering.

Embodiment 2

[0029] Weigh KCl: 38%, NaCl: 39%, CaF by mass percentage 2 :6%, Na 3 AlF 6 :9%, Mg 2 N 3 :6%, C 2 Cl 6 : 4% and rare earth lanthanum and cerium: 0.3%, the mass percentage of lanthanum and cerium is 1:1, mix the above several materials, stir evenly, put them into an electric furnace for superheating and melting to remove crystal water, cool after coming out of the furnace, and finally sieve The aluminum alloy refining agent of the present invention can be obtained by filtering.

Embodiment 3

[0031] Weigh KCl: 40%, NaCl: 38%, CaF by mass percentage 2 :7%, Na 3 AlF 6 :10%, Mg 2 N 3 :7%, C 2 Cl 6 : 5% and rare earth lanthanum and cerium: 0.4%, the mass percentage of lanthanum and cerium is 1:1, mix the above several materials, stir evenly, put them into an electric furnace for overheating and melting to remove crystal water, cool after coming out of the furnace, and finally sieve The aluminum alloy refining agent of the present invention can be obtained by filtering.

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 relates to an aluminum alloy refining gent, the aluminum alloy refining agent is characterized by comprising the following components by mass percent: 35-50% of KCl, 30-40% of NaCl, 5-8% of CaF2, 8-15% of Na3AlF6, 5-10% of Mg2N3, 3-6% of C2Cl6 and 0.2-0.5% of rare earth. The aluminum alloy refining agent is good in cleaning effect, strong in degassing capacity, and especially capable of removing aluminum oxide impurity with slight size, reducing the metal loss, and improving the microstructure of a round ingot casting after the aluminum alloy is molten.

Description

technical field [0001] The invention relates to the field of metal smelting and processing, in particular to an aluminum alloy refining agent. Background technique [0002] Aluminum alloys inevitably absorb and carry gases and produce inclusions during the smelting process, which will cause a series of defects such as pores, shrinkage cavities, shrinkage porosity, cracks and leakage of castings, which will reduce the purity of aluminum alloys and affect the quality . Therefore, it is necessary to refine and purify the aluminum alloy smelting process to remove these gases and inclusions and improve the quality of the aluminum alloy. Adding a refining agent to the aluminum alloy for refining and purification is a commonly used measure. [0003] At present, there are three kinds of refining agents used in the aluminum alloy smelting industry, they are RJ1-1, RJ1-2, RJ2-1. These three refining agents are generally passed into the aluminum alloy melt with inert gas as the carri...

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): C22C1/06C22C21/00
Inventor 周雄多梁敬钧陈荣立
Owner ALNAN ALUMINIUM CO LTD
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