CN1280203A - Rear earth flux for aluminium and aluminium alloy - Google Patents
Rear earth flux for aluminium and aluminium alloy Download PDFInfo
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- CN1280203A CN1280203A CN 00116611 CN00116611A CN1280203A CN 1280203 A CN1280203 A CN 1280203A CN 00116611 CN00116611 CN 00116611 CN 00116611 A CN00116611 A CN 00116611A CN 1280203 A CN1280203 A CN 1280203A
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- aluminium
- flux
- 100gal
- aluminium alloy
- melt
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Abstract
The rare earth flux has the composition of: NaCl 45.5-49.5 %, KCl 45.5-9.5 %, LaF3 or Cef3 3-5 % and CaCO30-2 %. It can reduce hydrogen content in pure aluminum melt at 700 deg.c to bolow 0.15 ml/100 g Al, and in eluminum alloy melt to below 0.01 ml/100 g Al; and fine alpha-Al and modified eutectic Si. It is added at the smelting point for covering protection.
Description
What the present invention relates to is a kind of flux, particularly a kind of aluminium and aluminium alloy rare-earth flux.Belong to foundry engieering class field.
The topmost problem that China exists in aluminium production shows that mainly hydrogen richness is higher and unstable.Usually the hydrogen that contains 0.4-0.8ml/100gAl in the aluminum alloy melt, hydrogen richness after aluminum melt degassing is handled is generally all about 0.1-0.2ml/100gAl, and resemble airplane parts, hydrogen content requires to be no more than 0.1ml/100gAl sometimes, in addition, the hydrogen richness of the aluminium of high-quality aluminium foil, used in electronic industry requires lower.And the general hydrogen richness of fine aluminium spindle of domestic production reaches more than the 0.20ml sometimes at 0.15-0.19mL/100gAl, and world level is at 0.12-0.15ml.Aspect melt degasification research, abroad can reach the top standard of 0.08-0.10 ml/100gAl, and domestic only be 0.12-0.15ml/100gAl.Flux can be used to dissolve with Al adsorption liquid in hydrogen and oxide inclusion.At present, the kind that is used for purified flux of development is a lot of both at home and abroad, but purposes is single, complicated operation or harmful to melt cleanliness factor or environment, and the dehydrogenation level is not high.Find that by literature search the JGJ-1 type aluminum refining agent that the Chen Weichen that refining agent commonly used is introduced as " casting " 1993 (7) etc. develops is under normal working condition, be used for degasification, sample reaches 1-2 level pinhole rate, and the refining agent consumption is few, few to aluminaization, cost free from environmental pollution is low.But this flux is used for the refining degasification when assorted, and not only hydrogen content does not reach higher level, and unprotect and rotten effect; palpus insulating covering agent and alterant are handled simultaneously during actual the use; cost does not fall on the contrary to be increased, and also must flux be pressed into melt with bell jar in addition, complex process.
The objective of the invention is to overcome deficiency of the prior art, a kind of aluminium and aluminium alloy rare-earth flux are provided, can integrate the anti-oxidation of covering protection, inhaling the hydrogen degasification, to reach high level, purification and impurity removal and refinement rotten multi-functional, and nontoxic.
Technical scheme of the present invention and being further described below the performance of the present invention:
In casting and fusion process, the main moisture that derives from of hydrogen comprises: it is possible oxidized and contain moisture that a adds pan feeding such as particle, and greasy dirt, sand, plastics are arranged in the particle, and remelted aluminum ingot contains gas; B. airborne moisture: H in the c. flux
2O content height, flux easily absorbs water; D. instrument; E. crucible.Melt temperature and water vapour are the key factor of decision aluminium liquid hydrogen duration of contact, and in fusing, cast, transmission and treated with same journey thereof, liquid aluminium very easily absorbs water vapour or hydrogen from surrounding environment.Flux be used for dissolving with Al adsorption liquid in gas and oxide inclusion.Component prescription of the present invention: NaCl 45.549.5%, KCl45.5-9.5%, LaF
3Or CeF
33-5% and CaCO
30-2%.
Embodiment 1:
NaCl 47.5%, and KCl 47.5%, (La, Ce) F
35% and CaCO
30%.
Can make the hydrogen content＜0.15ml/100gAl of fine aluminium melt (700 ℃), make the hydrogen content＜0.10ml/100gAl of aluminium alloy (700 ℃); The tensile strength and the unit elongation of aluminium and aluminium alloy obviously improve: the effect of refinement α (Al) and rotten eutectic Si is best.
Embodiment 2:
NaCl 45.5%, and KCl 49.5%, (La, Ce) F
34% and CaCO
31%.
Can make the hydrogen content＜0.14ml/100gAl of fine aluminium melt (700 ℃), make the hydrogen content＜0.09ml/100gAl of aluminium alloy (700 ℃); The tensile strength and the unit elongation of aluminium and aluminium alloy obviously improve; The effect of refinement α (Al) and rotten eutectic Si is better.
Embodiment 3:
NaCl 47.5%, and KCl 47.5%, (La, Ce) F
33% and CaCO
32%.
Can make the hydrogen content＜0.14ml/100gAl of fine aluminium melt (700 ℃), make the hydrogen content＜0.09ml/100gAl of aluminium alloy (700 ℃); The tensile strength and the unit elongation of aluminium and aluminium alloy obviously improve; The effect of refinement α (Al) and rotten eutectic Si is better.
The present invention has substantive distinguishing features and marked improvement, under need not the condition of refining, adopts this flux a Melt (700 ℃) hydrogen content is dropped to below the 0.15ml/100gAl from＞0.5ml/100gAl, Aluminium alloy melt (700 ℃) hydrogen content is dropped to below the 0.10ml/100gAl from＞0.20ml/100gAl. B. adopt this flux that the tensile strength of aluminium and aluminium alloy and percentage elongation are obviously improved. C. adopt this flux can Play the effect of refinement α (Al) and rotten eutectic Si. D. only must add at fusing point, automatically covering protection.
Claims (1)
1, a kind of aluminium and aluminium alloy rare-earth flux is characterized in that the component prescription of aluminium and aluminium alloy rare-earth flux: NaCl 45.549.5%, KCl 45.5-9.5%, LaF
3Or CeF
33-5% and CaCO
30-2%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001166115A CN1173052C (en) | 2000-06-20 | 2000-06-20 | Rear earth flux for aluminium and aluminium alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001166115A CN1173052C (en) | 2000-06-20 | 2000-06-20 | Rear earth flux for aluminium and aluminium alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1280203A true CN1280203A (en) | 2001-01-17 |
| CN1173052C CN1173052C (en) | 2004-10-27 |
Family
ID=4586014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001166115A Expired - Fee Related CN1173052C (en) | 2000-06-20 | 2000-06-20 | Rear earth flux for aluminium and aluminium alloy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1173052C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102226239A (en) * | 2011-06-14 | 2011-10-26 | 华南理工大学 | Refining flux used for purifying and processing aluminum or aluminum alloy melt, and its preparation method |
| CN103789557A (en) * | 2014-03-10 | 2014-05-14 | 南通曼特威金属材料有限公司 | Multifunctional composite fluxing agent |
| CN103820642A (en) * | 2014-02-14 | 2014-05-28 | 南通曼特威金属材料有限公司 | Production method of high-strength high-roughness secondary aluminum |
| CN105779803A (en) * | 2016-05-20 | 2016-07-20 | 湖南东方钪业股份有限公司 | Composite alterant for aluminum alloy and preparing method of composite alterant |
| RU2606691C1 (en) * | 2015-08-27 | 2017-01-10 | Акционерное общество "Научно-производственное объединение "Центральный научно-исследовательский институт технологии машиностроения" АО "НПО "ЦНИИТМАШ" | Flux for electroslag remelting |
| CN109576523A (en) * | 2018-12-29 | 2019-04-05 | 安徽鑫铂铝业股份有限公司 | A kind of purification method of heat transmission aluminium alloy |
-
2000
- 2000-06-20 CN CNB001166115A patent/CN1173052C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102226239A (en) * | 2011-06-14 | 2011-10-26 | 华南理工大学 | Refining flux used for purifying and processing aluminum or aluminum alloy melt, and its preparation method |
| CN102226239B (en) * | 2011-06-14 | 2013-02-13 | 华南理工大学 | Refining flux used for purifying and processing aluminum or aluminum alloy melt, and preparation method thereof |
| CN103820642A (en) * | 2014-02-14 | 2014-05-28 | 南通曼特威金属材料有限公司 | Production method of high-strength high-roughness secondary aluminum |
| CN103789557A (en) * | 2014-03-10 | 2014-05-14 | 南通曼特威金属材料有限公司 | Multifunctional composite fluxing agent |
| RU2606691C1 (en) * | 2015-08-27 | 2017-01-10 | Акционерное общество "Научно-производственное объединение "Центральный научно-исследовательский институт технологии машиностроения" АО "НПО "ЦНИИТМАШ" | Flux for electroslag remelting |
| CN105779803A (en) * | 2016-05-20 | 2016-07-20 | 湖南东方钪业股份有限公司 | Composite alterant for aluminum alloy and preparing method of composite alterant |
| CN109576523A (en) * | 2018-12-29 | 2019-04-05 | 安徽鑫铂铝业股份有限公司 | A kind of purification method of heat transmission aluminium alloy |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1173052C (en) | 2004-10-27 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20010117 Assignee: Nantong Metalwell Co.,Ltd. Assignor: Shanghai Jiao Tong University Contract record no.: 2013320000457 Denomination of invention: Rear earth flux for aluminium and aluminium alloy Granted publication date: 20041027 License type: Exclusive License Record date: 20130524 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20041027 Termination date: 20170620 |