High-temperature alterant and method for purifying fusant by adopting same
A technology of high-temperature metamorphism and melting, applied in the field of aluminum electrolysis, can solve problems such as poor castability, cold cracking, and high gas content, and achieve the effects of improving the yield of ingots, good grain refinement, and optimizing the production process
Active Publication Date: 2010-01-13
GUIZHOU BRANCH CHINA ALUMINUM IND
View PDF0 Cites 13 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Because electrolytic aluminum liquid has many inclusions, high gas content, and poor castability, when it is used for direct billet casting, it is easy to produce heat shrinkage, cold cracking, pore shrinkage cracking, crack expansion and severe segregation, etc., resulting in more ingots. Pores, shrinkage cavities, composition segregation and warpage and other defects, the product quality is difficult to meet the requirements
The existing single purification method is difficult to reduce the content of inclusions and gases in the electrolytic aluminum solution to meet the requirements of the casting slab
Therefore, it is very difficult to purify the molten aluminum by using electrolytic aluminum liquid to directly cast slabs, and it needs in-depth research and development.
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0031] Mix 15% of fluorite, 45% of carnallite, 30% of cerium carbonate, 6% of titanium dioxide and 4% of graphite, and stir evenly to prepare a high-temperature modificator.
Embodiment 2
[0033] Mix 20% of potassium fluoride, 43% of carnallite, 27% of lanthanum fluoride, 8% of titanium dioxide and 2% of graphite, and stir evenly to prepare a high-temperature modifier.
Embodiment 3
[0035] Mix 18% of magnesium fluoride, 40% of carnallite, 25% of praseodymium chloride, 10% of titanium dioxide and 7% of graphite, and stir evenly to prepare the high-temperature modifier.
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
| Property | Measurement | Unit |
|---|---|---|
| particle diameter | aaaaa | aaaaa |
| particle size | aaaaa | aaaaa |
Login to View More
Abstract
The invention discloses a high-temperature alterant, which comprises the following components in percentage by weight: 15 to 20 percent of chloride, 40 to 45 percent of chloride, 25 to 30 percent of rare earth metal compound, 3 to 8 percent of titanium dioxide, and 2 to 6 percent of graphite. The invention also discloses a method for purifying a fusant, wherein the high-temperature alterant is added into a smelting furnace. The high-temperature alterant can reduce the sodium content in an electrolytic molten aluminum fusant and effectively control the grain size to achieve good grain refining effect. The method for purifying the fusant can effectively reduce gas and foreign impurities in the fusant, optimize the production process, ensure the quality of aluminum and aluminum alloy fusants, improve the ingot yield, save the energy consumption, and reduce the discharge of pollutants.
Description
technical field [0001] The invention belongs to the technical field of aluminum electrolysis, relates to a high-temperature modifier, and also relates to a melt purification method using the high-temperature modifier, in particular to a high-efficiency purification method for directly casting aluminum and aluminum alloy melts by electrolyzing primary aluminum . Background technique [0002] With the acceleration of the structural adjustment of my country's aluminum industry, the economical production of aluminum electrolysis enterprises and aluminum processing enterprises has become a development trend. Casting directly with electrolytic aluminum liquid to produce billets for aluminum processing is an advanced production technology with short process, energy saving and consumption reduction, and environmental protection. It integrates aluminum smelting and aluminum processing to achieve the purpose of optimizing resource allocation, reducing production costs and improving e...
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
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/06B22D1/00
Inventor 杨孟刚黎云谢青松龚春雷邹韶宁向容驿崔健舒立王顺辉杨通信毕昌武文东辉曾萍
Owner GUIZHOU BRANCH CHINA ALUMINUM IND
PatSnap Eureka turns technology decisions into work you can execute. Powered by our Innovation Knowledge Graph, it runs expert workflows across engineering, life sciences, materials and intellectual property. Get your review-ready output in minutes.
