CN100447265C - Method for clearing titanium segregation in aluminum ingot - Google Patents
Method for clearing titanium segregation in aluminum ingot Download PDFInfo
- Publication number
- CN100447265C CN100447265C CNB2006101173126A CN200610117312A CN100447265C CN 100447265 C CN100447265 C CN 100447265C CN B2006101173126 A CNB2006101173126 A CN B2006101173126A CN 200610117312 A CN200610117312 A CN 200610117312A CN 100447265 C CN100447265 C CN 100447265C
- Authority
- CN
- China
- Prior art keywords
- melt
- alloy
- aluminum
- segregation
- titanium
- 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.)
- Expired - Fee Related
Links
Abstract
The present invention is method of clearing titanium segregation in aluminum ingot, and belongs to the field of metal melt treating technology. The method features that aluminum or aluminum alloy melt after refining and modifying treatment is added with Al-5Ti-X alloy for fining crystal grain without skimming and the melt is maintained directly at 710-760 deg.c for 20-50 min, so that TiAl, Ti3Al and other intermetallic compounds with high titanium content may be dissolved fully and converted into Al3(Ti, X) with fining effect to eliminate titanium segregation in aluminum ingot and improve crystal grain fining effect.
Description
Technical field
The present invention relates to a kind of method of eliminating titanium segregation in the aluminium ingot, belong to the metal melt processing technology field.
Background technology
As everyone knows, for improving aluminium alloy capability, aluminum or aluminum alloy is carried out the crystal grain thinning processing become important procedure one, this is to realize by adding an amount of Al-5Ti-X alloy usually.But also find simultaneously because in the process of preparation Al-5Ti-X master alloy, deal with improperly tend to generate some contain the Ti amount higher as TiAl, Ti
2Al and Ti
3Compound between refractory metals such as Al, thereby caused the segregation that has titanium in the aluminium ingot casting of producing, for example: after adding the Al-5Ti master alloy in the A356 alloy, measure and find, the distribution of Ti is seriously inhomogeneous, the regional Ti content that has is up to 0.6-0.75%, and the regional Ti content that has has only 0.05-0.07% (the titaniferous amount in the A356 alloy is 0.08-0.20%).The consequence that this segregation brings is that the refining effect of Ti is seriously decayed, and has influenced grain refining effect, thereby worsens alloy property.In addition, because the existence of Ti segregation, make the Ti content fluctuation of same batch of aluminium ingot to have exceeded the alloying element claimed range, cause the foundry goods produced defective, and scrap because of chemical ingredients.
Summary of the invention
The purpose of this invention is to provide a kind of method of eliminating titanium segregation in the aluminium ingot.
For achieving the above object, the present invention takes following technical scheme:
A kind of method of eliminating titanium segregation in the aluminium ingot the method is characterized in that to have following processing step:
A. after aluminum or aluminum alloy melt refinement and denaturation is handled, when melt temperature to 710-760 ℃, the Al-5Ti-X master alloy that adds melt weight per-cent and be 0.1-0.3%Ti carries out crystal grain thinning to be handled;
B. above-mentioned melt was kept 20-50 minute at 710-760 ℃, skimming again, cast promptly obtain the aluminium ingot that titanium is evenly distributed.
People studies show that the crystal grain thinning mechanism of such alloy: after the Al-5Ti-X alloy added aluminum or aluminum alloy, that can play crystal grain thinning was Al
3(Ti, X).And, can find that in preparation Al-5Ti master alloy process, Ti is at the dissolution process of aluminum or aluminum alloy according to the Al-Ti binary phase diagram, can generate some contain the Ti amount higher as TiAl, Ti
2Al and Ti
3Compound between refractory metals such as Al, and then generate the relatively low Al of Ti content
3The Ti phase.Well imagine, if not fully dissolving of compound transition phase between these refractory metals, remain in the aluminium ingot, can cause on the one hand between these refractory metals the regional Ti content of compound transition phase very high, on the other hand, also caused other regional poor Ti, made the content of the regional Ti that does not have these transition phases be lower than normal mean level (ML).
After adopting the present invention,, make TiAl in the melt, Ti because the aluminum or aluminum alloy melt kept 20-50 minute at 710-760 ℃
2Al and Ti
3The intermetallic compound transition phase of high-melting-points such as Al has just had adequate time to spread and dissolving fully, changes into can play effective refining effect and contain the lower Al of Ti amount
3(Ti, X) phase, and then significantly reduce the segregation degree of Ti in the aluminium ingot, finally improve grain refining effect.
Embodiment
The invention will be further described below by embodiment.
Embodiment 1
After the processing of A356 alloy melt refinement and denaturation, when melt temperature reached 730 ℃, the proportioning of pressing weight alloy per-cent 0.2%Ti added the Al-5Ti master alloy, melt is carried out crystal grain thinning handle, not skimming earlier makes melt keep 20 minutes at 740-750 ℃, skimming again, cast.After measured, have the segregation of Ti in the aluminium ingot hardly, Ti content substantially all remains on 0.15-0.17%.
Embodiment 2
After the processing of ZL114A alloy melt refinement and denaturation, when melt temperature reached 730 ℃, the proportioning of pressing weight alloy per-cent 0.15%Ti added the Al-5Ti-1B master alloy, melt is carried out crystal grain thinning handle, not skimming earlier makes melt keep 35 minutes at 730-740 ℃, skimming again, cast.After measured, Ti is evenly distributed in the aluminium ingot.
Embodiment 3
After the processing of AlSi8CuMg alloy melt refinement and denaturation, when melt temperature reached 730 ℃, the proportioning of pressing weight alloy per-cent 0.15%Ti added the Al-5Ti-C master alloy, melt is carried out crystal grain thinning handle, not skimming earlier makes melt keep 40 minutes at 740-750 ℃, skimming again, cast.After measured, Ti is evenly distributed in the aluminium ingot.
Claims (1)
1. method of eliminating titanium segregation in the aluminium ingot the method is characterized in that to have following processing step:
A. after aluminum or aluminum alloy melt refinement and denaturation is handled, when melt temperature to 710-760 ℃, the Al-5Ti-X master alloy that adds melt weight per-cent and be 0.1-0.3%Ti carries out crystal grain thinning to be handled, wherein X is B or C or does not have;
B. above-mentioned melt was kept 20-50 minute at 710-760 ℃, skimming again, cast promptly obtain the aluminium ingot that titanium is evenly distributed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101173126A CN100447265C (en) | 2006-10-19 | 2006-10-19 | Method for clearing titanium segregation in aluminum ingot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101173126A CN100447265C (en) | 2006-10-19 | 2006-10-19 | Method for clearing titanium segregation in aluminum ingot |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1944696A CN1944696A (en) | 2007-04-11 |
| CN100447265C true CN100447265C (en) | 2008-12-31 |
Family
ID=38044345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101173126A Expired - Fee Related CN100447265C (en) | 2006-10-19 | 2006-10-19 | Method for clearing titanium segregation in aluminum ingot |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100447265C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101994044A (en) * | 2010-12-10 | 2011-03-30 | 西南铝业（集团）有限责任公司 | 7A52 aluminum alloy and production method and production device thereof |
| CN106191491B (en) * | 2016-08-29 | 2017-10-31 | 中航动力股份有限公司 | A kind of method for preventing ZL208 aluminium alloys and its casting from producing segregation |
| JP2019209362A (en) * | 2018-06-06 | 2019-12-12 | 本田技研工業株式会社 | Method for producing aluminum alloy |
| CN113789454A (en) * | 2021-09-11 | 2021-12-14 | 中北大学 | Aluminum steel solid-liquid bimetal composite casting method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1298965A (en) * | 1999-12-03 | 2001-06-13 | 郑州大学 | Process for preparing Ti-contained Al alloy |
| CN1305016A (en) * | 2001-01-04 | 2001-07-25 | 上海大学 | Process for refining and modifying aluminium alloy |
-
2006
- 2006-10-19 CN CNB2006101173126A patent/CN100447265C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1298965A (en) * | 1999-12-03 | 2001-06-13 | 郑州大学 | Process for preparing Ti-contained Al alloy |
| CN1305016A (en) * | 2001-01-04 | 2001-07-25 | 上海大学 | Process for refining and modifying aluminium alloy |
Non-Patent Citations (8)
| Title |
|---|
| Al-5Ti-B变质高锌铝合金的组织和性能. 黄俊等.铸造技术，第6期. 2001 |
| Al-5Ti-B变质高锌铝合金的组织和性能. 黄俊等.铸造技术，第6期. 2001 * |
| 稀土对锶变质A356合金冶金质量的影响. 欧阳志英等.铸造技术，第27卷第1期. 2006 |
| 稀土对锶变质A356合金冶金质量的影响. 欧阳志英等.铸造技术，第27卷第1期. 2006 * |
| 铝合金熔炼与铸造. 罗启全，全文，广东科技出版社. 2002 |
| 铝合金熔炼与铸造. 罗启全，全文，广东科技出版社. 2002 * |
| 陈渭臣，黄兴波. 铝合金熔体处理的研究近况.铸造，第52卷第6期. 2003 |
| 陈渭臣，黄兴波. 铝合金熔体处理的研究近况.铸造，第52卷第6期. 2003 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1944696A (en) | 2007-04-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103146961B (en) | Alloy ingot for automotive hub and production method thereof | |
| CN109439976B (en) | Composite modification method for casting aluminum-silicon alloy | |
| CN108425050B (en) | High-strength high-toughness aluminum lithium alloy and preparation method thereof | |
| CA2151884C (en) | Diecasting alloy | |
| CN102943193B (en) | Grain refinement machining process of hard aluminium alloy cast ingot | |
| EP2479304B1 (en) | Preparation method for aluminum-zirconium-titanium-carbon intermediate alloy | |
| CN101967531B (en) | Method for preparing high-titanium iron by step-by-step metal thermal reduction | |
| CN101664792A (en) | Engineering process for producing low-iron low-silicon 3004 alloy by directly cast-rolling electrolytic aluminium liquid | |
| CN100447265C (en) | Method for clearing titanium segregation in aluminum ingot | |
| CN103966487A (en) | Production technology for aluminium-alloy casting rod special for forging of automobile aluminium-alloy wheel hubs | |
| CN101660074A (en) | Modifier for high-strength aluminum alloy and use method thereof | |
| CN102337417A (en) | Method for refining hypereutectic aluminum-silicon alloy primary crystal silicon tissues | |
| KR20230170749A (en) | Highly plastic composite modified aluminum alloy parts and manufacturing method thereof | |
| CN102676856B (en) | Metamorphic process of hypo eutectic casting aluminum-silicon alloy | |
| CN108677070A (en) | A kind of hypereutectic aluminum alloy materials | |
| CN108588512A (en) | A kind of hypereutectic aluminum alloy materials | |
| CN102367534B (en) | A kind of method of preparing cast aluminum alloy with composite grain refiner | |
| Zakharov et al. | Effect of scandium, transition metals, and admixtures on strengthening of aluminum alloys due to decomposition of the solid solution | |
| CN114214534A (en) | Modified aluminum alloy and preparation method thereof | |
| KR20240029059A (en) | High-strength composite modified aluminum alloy parts and manufacturing method thereof | |
| CN102418009B (en) | Aluminum alloy capable of digesting high-hardness compounds and smelting method of aluminum alloy | |
| CN108149083B (en) | A kind of semisolid pressure casting aluminium alloy and the method for preparing semisolid pressure casting aluminium alloy castings | |
| CN102418008B (en) | High-strength aluminum alloy obtained by removing inclusion through HfC and preparation method of aluminum alloy | |
| CN110951983B (en) | Method for refining 2618 aluminum alloy as-cast grain structure | |
| EP2476764B1 (en) | Preparation method of al-zr-c master alloy |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081231 Termination date: 20131019 |