CN102277594A - Manufacturing method of aluminum ingot being less prone to producing needle-like beta-AlFeSi impurity phase - Google Patents
Manufacturing method of aluminum ingot being less prone to producing needle-like beta-AlFeSi impurity phase Download PDFInfo
- Publication number
- CN102277594A CN102277594A CN201110231344XA CN201110231344A CN102277594A CN 102277594 A CN102277594 A CN 102277594A CN 201110231344X A CN201110231344X A CN 201110231344XA CN 201110231344 A CN201110231344 A CN 201110231344A CN 102277594 A CN102277594 A CN 102277594A
- Authority
- CN
- China
- Prior art keywords
- alfesi
- impurity phase
- aluminium ingot
- needle
- aluminum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention belongs to the technical field of manufacturing of aluminum ingots and specifically relates to a manufacturing method of an aluminum ingot being less prone to producing a needle-like beta-AlFeSi impurity phase. The manufacturing method of the aluminum ingot is characterized in that: (1) alumyte in Henan Province is purely adopted; (2) the alumyte is produced into aluminum oxide through an intensified sintering process; (3) aluminum oxide is produced into electrolytic aluminum water at the temperature of 950 DEG C-970 DEG C through a Hall-Heroult cryolite-aluminum oxide molten salt electrolysis method; and (4) the electrolytic aluminum water is casted into the aluminum ingot at the temperature of 690 DEG C-760 DEG C. As for the aluminum ingot prepared by using the method, the needle-like beta-AlFeSi impurity phase is difficult to produce in internal textures; furthermore, the needle-like beta-AlFeSi impurity phase is difficult to produce in the internal textures after remelting; and as for an aluminum alloy prepared by remelting the aluminum ingot, the needle-like beta-AlFeSi impurity phase is also difficult to produce in the internal textures of the aluminum alloy.
Description
Technical field
The invention belongs to aluminium ingot manufacturing technology field, be specifically related to the aluminium ingot making method of a kind of difficult generation needle-like β-AlFeSi impurity phase.
Background technology
Aluminium ingot production method commonly used at present, because the bauxite of different sources is used with in process of production, very easily produce needle-like β-AlFeSi impurity phase in the aluminium ingot interior tissue of being produced, needle-like β in the aluminium ingot interior tissue-AlFeSi impurity mutually again very easily Yi Chuan Give adopt it to make raw-material aluminium alloy, the needle-like β-AlFeSi impurity processing characteristics and use properties of casting and wrought aluminium alloy relatively all has very big infringement.
Summary of the invention
The present invention is intended at above-mentioned situation, and the aluminium ingot making method of a kind of difficult generation needle-like β-AlFeSi impurity phase is provided, and makes to be difficult for producing needle-like β-AlFeSi impurity phase in the interior tissue of aluminium ingot.
Embodiment
The invention provides the aluminium ingot making method of a kind of difficult generation needle-like β-AlFeSi impurity phase, it is characterized in that:
(1). adopt the bauxite in Henan Province merely;
(2). with intensified sintering above-mentioned bauxite is made aluminum oxide;
(3). with Hall-Ai Lu sodium aluminum fluoride-aluminum oxide molten salt electrolysis, above-mentioned aluminum oxide is made electrolytic aluminum water at 950 ℃-970 ℃;
(4). above-mentioned electrolytic aluminum water is cast into aluminium ingot at 690 ℃-760 ℃.
According to the aluminium ingot making method of a kind of difficult generation needle-like β provided by the invention-AlFeSi impurity phase, preferably, the bauxite in described simple employing Henan Province is not sneak into from the bauxite of external import and the bauxite of domestic other provinces.
According to the aluminium ingot making method of a kind of difficult generation needle-like β provided by the invention-AlFeSi impurity phase, preferably, the bauxite composition range (wt.%) in described Henan Province is Al2O3:60-70; SiO2 :≤15; Fe203 :≤5; Impurity summation :≤22; The weight percent that raw material loses after 1000-1100 ℃ of calcinations :≤18; Ore particles size: 2-100mm.
According to the aluminium ingot making method of a kind of difficult generation needle-like β provided by the invention-AlFeSi impurity phase, preferably, the composition range of described aluminum oxide (wt.%) is Al2O3:98.6-99.6%; SiO2 :≤0.02; Fe2O3 :≤0.01; Na2O :≤0.37; Igloss (index in the GB/T 24487-2009 aluminum oxide standard) :≤1.0.
According to the aluminium ingot making method of a kind of difficult generation needle-like β provided by the invention-AlFeSi impurity phase, preferably, the composition range of described electrolytic aluminum water (wt.%) is Al:99.70-99.90; Si :≤0.12; Fe :≤0.10; Impurity summation≤0.30.
According to the aluminium ingot making method of a kind of difficult generation needle-like β provided by the invention-AlFeSi impurity phase, preferably, the composition range of described aluminium ingot (wt.%) is Al:99.70-99.90; Si :≤0.12; Fe :≤0.10; Impurity summation≤0.30.
According to the aluminium ingot making method of a kind of difficult generation needle-like β provided by the invention-AlFeSi impurity phase, no needle-like β in the described aluminium ingot interior tissue-AlFeSi impurity phase.
Aluminium ingot with method preparation of the present invention, be difficult for producing needle-like β-AlFeSi impurity phase in the interior tissue, and after remelting, also be difficult for producing needle-like β-AlFeSi impurity phase in the interior tissue, with the aluminium alloy of above-mentioned aluminium ingot remelting preparation, also be difficult for producing needle-like β-AlFeSi impurity phase in the aluminium alloy interior tissue.
Below in conjunction with example the present invention is further specified.
For example, the simple bauxite that adopts Henan Province, with intensified sintering above-mentioned bauxite is made aluminum oxide, with Hall-Ai Lu sodium aluminum fluoride-aluminum oxide molten salt electrolysis, at 950 ℃-970 ℃ above-mentioned aluminum oxide is made electrolytic aluminum water, above-mentioned electrolytic aluminum water is cast into aluminium ingot at 690 ℃-760 ℃, does not find needle-like β-AlFeSi impurity phase in the aluminium ingot interior tissue.
Again for example, the simple bauxite that adopts Henan Province, with intensified sintering above-mentioned bauxite is made aluminum oxide, with Hall-Ai Lu sodium aluminum fluoride-aluminum oxide molten salt electrolysis, at 950 ℃-970 ℃ above-mentioned aluminum oxide is made electrolytic aluminum water, above-mentioned electrolytic aluminum water is cast into aluminium ingot at 690 ℃-760 ℃, do not find needle-like β-AlFeSi impurity phase in the aluminium ingot interior tissue, with being mixed with 7075 aluminium alloys at 740 ℃-760 ℃ after the above-mentioned aluminium ingot remelting, do not find needle-like β-AlFeSi impurity phase in the aluminium alloy interior tissue yet.
Claims (7)
1. aluminium ingot making method that be difficult for to produce needle-like β-AlFeSi impurity phase is characterized in that:
(1). adopt the bauxite in Henan Province merely;
(2). with intensified sintering above-mentioned bauxite is made aluminum oxide;
(3). with Hall-Ai Lu sodium aluminum fluoride-aluminum oxide molten salt electrolysis, above-mentioned aluminum oxide is made electrolytic aluminum water at 950 ℃-970 ℃;
(4). above-mentioned electrolytic aluminum water is cast into aluminium ingot at 690 ℃-760 ℃.
2. the aluminium ingot making method of a kind of difficult generation needle-like β according to claim 1-AlFeSi impurity phase, it is characterized in that: the bauxite in described simple employing Henan Province is not sneak into from the bauxite of external import and the bauxite of domestic other provinces.
3. the aluminium ingot making method of a kind of difficult generation needle-like β according to claim 1-AlFeSi impurity phase, it is characterized in that: the bauxite composition range (wt.%) in described Henan Province is Al2O3:60-70; SiO2 :≤15; Fe203 :≤5; Impurity summation :≤22; The weight percent that raw material loses after 1000-1100 ℃ of calcinations :≤18; Ore particles size: 2-100mm.
4. the aluminium ingot making method of a kind of difficult generation needle-like β according to claim 1-AlFeSi impurity phase, it is characterized in that: the composition range of described aluminum oxide (wt.%) is Al2O3:98.6-99.6%; SiO2 :≤0.02; Fe2O3 :≤0.01; Na2O :≤0.37; Igloss :≤1.0.
5. the aluminium ingot making method of a kind of difficult generation needle-like β according to claim 1-AlFeSi impurity phase, it is characterized in that: the composition range of described electrolytic aluminum water (wt.%) is Al:99.70-99.90; Si :≤0.12; Fe :≤0.10; Impurity summation≤0.30.
6. the aluminium ingot making method of a kind of difficult generation needle-like β according to claim 1-AlFeSi impurity phase, it is characterized in that: the composition range of described aluminium ingot (wt.%) is Al:99.70-99.90; Si :≤0.12; Fe :≤0.10; Impurity summation≤0.30.
7. the aluminium ingot making method of a kind of difficult generation needle-like β according to claim 1-AlFeSi impurity phase is characterized in that: no needle-like β in the described aluminium ingot interior tissue-AlFeSi impurity phase.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110231344XA CN102277594A (en) | 2011-08-13 | 2011-08-13 | Manufacturing method of aluminum ingot being less prone to producing needle-like beta-AlFeSi impurity phase |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110231344XA CN102277594A (en) | 2011-08-13 | 2011-08-13 | Manufacturing method of aluminum ingot being less prone to producing needle-like beta-AlFeSi impurity phase |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102277594A true CN102277594A (en) | 2011-12-14 |
Family
ID=45103318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110231344XA Pending CN102277594A (en) | 2011-08-13 | 2011-08-13 | Manufacturing method of aluminum ingot being less prone to producing needle-like beta-AlFeSi impurity phase |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102277594A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108489980A (en) * | 2018-02-08 | 2018-09-04 | 东莞市宏锦金属制品有限公司 | A kind of AlFeSi inversion of phases rate detection method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1241533A (en) * | 1999-07-05 | 2000-01-19 | 中国长城铝业公司中州铝厂 | Production process of alumina by intensified sintering method |
| US20060081311A1 (en) * | 2004-10-14 | 2006-04-20 | National Cheng Kung University | Aluminum alloy with improved mechanical properties at high temperatures |
| CN101092667A (en) * | 2006-06-19 | 2007-12-26 | 孙益喜 | Method for aluminum production through vertical shaft kiln |
-
2011
- 2011-08-13 CN CN201110231344XA patent/CN102277594A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1241533A (en) * | 1999-07-05 | 2000-01-19 | 中国长城铝业公司中州铝厂 | Production process of alumina by intensified sintering method |
| US20060081311A1 (en) * | 2004-10-14 | 2006-04-20 | National Cheng Kung University | Aluminum alloy with improved mechanical properties at high temperatures |
| CN101092667A (en) * | 2006-06-19 | 2007-12-26 | 孙益喜 | Method for aluminum production through vertical shaft kiln |
Non-Patent Citations (3)
| Title |
|---|
| 李昊: "中国铝土矿资源产业可持续发展研究", 《中国地质大学（北京）博士学位论文》 * |
| 杨重愚: "《氧化铝生产工艺学》", 31 October 1993, 冶金工业出版社 * |
| 王捷: "《电解铝生产工艺与设备》", 30 June 2006, 冶金工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108489980A (en) * | 2018-02-08 | 2018-09-04 | 东莞市宏锦金属制品有限公司 | A kind of AlFeSi inversion of phases rate detection method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103539467B (en) | Mechanically-pressed carbon-free corundum spinel ladle brick as well as preparation method thereof | |
| CN104193354B (en) | A kind of tundish permanent layer mould material and preparation method thereof | |
| CN102766797B (en) | Multi-principal-element alloy | |
| CN103938008A (en) | Efficient refining agent for smelting aluminum alloy and preparation method thereof | |
| CN104261848A (en) | Chrome-oxide-containing mullite brick and preparation method thereof | |
| CN104911413A (en) | Aluminum silicate composition alloy and production method therof | |
| WO2014019400A1 (en) | Method for refining primary silicon of hypereutectic al-si alloy | |
| CN105174721A (en) | High temperature resistance glass ceramic dish and preparation method thereof | |
| CN102965536B (en) | Aluminum alloy smelting refining agent | |
| CN102424927A (en) | Magnesium-aluminum alloy and preparation method thereof | |
| CN102277594A (en) | Manufacturing method of aluminum ingot being less prone to producing needle-like beta-AlFeSi impurity phase | |
| CN101935770B (en) | Method for manufacturing aluminum and yttrium-containing multi-element nickel-based alloy ingot blank | |
| CN102277519B (en) | Aluminum alloy manufacturing method not easy to produce acicular beta-AlFeSi impurity phase | |
| CN102634691A (en) | High-strength and high-corrosion-resistance cupronickel alloy and manufacturing method thereof | |
| CN104788082A (en) | Improved alumina ceramic core and preparation method thereof | |
| CN102242285B (en) | Manufacturing method of aluminum alloy with low possibility of generating needle-shaped aluminum-iron-silicon impurity phase | |
| CN102220524B (en) | Preparation method of aluminum-nickel-titanium-carbon intermediate alloy | |
| CN102268694A (en) | Manufacturing method for aluminum ingot hardly prone to generating acicular aluminum-iron-silicon impurity phase | |
| CN103173699A (en) | Zn-containing Mg-Cu-Gd bulk amorphous alloy and preparation method thereof | |
| CN103668010A (en) | A series of Zr-Al-Ni-Cu block amorphous alloys having cellular microstructures | |
| CN104232986A (en) | Preparation method of novel music bronze drum | |
| CN108165780B (en) | Preparation method of Ni-Cr-Al-Fe high-temperature alloy | |
| CN103093915B (en) | A kind of high tenacity magnetic material and preparation method thereof | |
| CN104152809A (en) | Alloy mandrel and preparation method thereof | |
| CN106222538A (en) | The manufacture method of microalloying vermicular cast iron glass ware mould material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20111214 |
|
| CI01 | Publication of corrected invention patent application |
Correction item: Review status Correct: Entry review process False: Dismiss invalid Number: 26 Volume: 30 |
|
| ERR | Gazette correction |
Free format text: CORRECT: EXAMINATION STATUS; FROM: DISMISSAL FAILURE TO: ENTER REVIEW PROCEEDINGS |
|
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20111214 |