CN102039387B - Aluminum bronze QA (Quality Assessment) 110-4-4 thin covering semi-continuous ingot casting technology - Google Patents
Aluminum bronze QA (Quality Assessment) 110-4-4 thin covering semi-continuous ingot casting technology Download PDFInfo
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- CN102039387B CN102039387B CN 201010193538 CN201010193538A CN102039387B CN 102039387 B CN102039387 B CN 102039387B CN 201010193538 CN201010193538 CN 201010193538 CN 201010193538 A CN201010193538 A CN 201010193538A CN 102039387 B CN102039387 B CN 102039387B
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- China
- Prior art keywords
- ingot casting
- aluminum bronze
- semi
- continuous ingot
- coverture
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- 238000005266 casting Methods 0.000 title claims abstract description 23
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title abstract description 13
- 229910052782 aluminium Inorganic materials 0.000 title abstract description 6
- 229910000906 Bronze Inorganic materials 0.000 title abstract 4
- 239000010974 bronze Substances 0.000 title abstract 4
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 title abstract 4
- 238000001303 quality assessment method Methods 0.000 title abstract 4
- 238000005516 engineering process Methods 0.000 title description 3
- 238000002360 preparation method Methods 0.000 claims abstract description 7
- 239000000843 powder Substances 0.000 claims abstract description 3
- 239000003610 charcoal Substances 0.000 claims description 5
- 239000013078 crystal Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 9
- 239000003795 chemical substances by application Substances 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000007797 corrosion Effects 0.000 abstract description 2
- 238000005260 corrosion Methods 0.000 abstract description 2
- 239000000155 melt Substances 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 abstract description 2
- 238000005299 abrasion Methods 0.000 abstract 1
- 239000003818 cinder Substances 0.000 abstract 1
- 229910001610 cryolite Inorganic materials 0.000 abstract 1
- 230000002349 favourable effect Effects 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910021538 borax Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000013401 experimental design Methods 0.000 description 1
- 238000007499 fusion processing Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000004328 sodium tetraborate Substances 0.000 description 1
- 235000010339 sodium tetraborate Nutrition 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Landscapes
- Prevention Of Electric Corrosion (AREA)
- Metal Rolling (AREA)
Abstract
The invention provides an aluminum bronze QA (Quality Assessment) 110-4-4 thin covering semi-continuous ingot casting preparation method. During the production of aluminum bronze QA110-4-4 by a semi-continuous ingot casting method, a mixture prepared from cinders and cryolite according to a certain proportion is used as a covering agent for producing the aluminum bronze QA110-4-4 with the semi-continuous ingot casting method, and the covering agent is used in a thin covering way, that is to say, the covering agent is in a form of powder which is uniformly and continuously spread on the melt surface with the vibration of a crystallizer, and the thickness of the covering agent spread every time is not larger than 1mm. The product provided by the invention has the characteristics of high finished product ratio, dense texture, excellent metallographic structure, high product strength, favorable plasticity and toughness, strong abrasion and corrosion resistance and the like.
Description
Technical field: the present invention relates to the semicontinuous ingot casting preparation method of the thin covering of albronze QAl 10-4-4-4-4.
Ingot mould ingot casting method or horizontal continuity ingot casting method, vertical semicontinuous ingot casting method are generally being adopted in the preparation of background technology: albronze QAl 10-4-4-4-4.No matter adopt which kind of method, because higher aluminium content in the alloy, the oxidation tendency of QAl10-4-4 aluminium bronze is more serious, and aluminium bronze is air-breathing easily in fusion-casting process to generate Al with oxidation
2O
3The Al of complete densification
2O
3Film can stop the continuation oxidation of copper liquid, but the rolling to melt in the vibration of the stirring of melt, crystallizer and the crystallizer all might make fine and close Al in the fusion process
2O
3Film breaks becomes block Al
2O
3And lose protective effect to melt.For the casting of this alloy, adopted often coverture, coverture is the prescription that adopts " charcoal ash+ice crystal+borax " usually in the past, and carries out the thick-layer covering, and coverture thickness reaches 20-30mm.The block Al that is present in the melt top layer in the casting process
2O
3Along with melt rolls to the crystallizer inwall, because of hardening by cooling, very easily assemble slagging scorification, and then be folded in the gap of ingot casting and crystallizer wall together with the coverture of limit section, cause metal solidification process the partial discontinuous phenomenon to occur, thereby form slag inclusion, cold shut defects and reduce ingot quality, still can't remove the slag inclusion layer fully even railway carriage processing thickness reaches 5-10mm.These defectives have a strong impact on lumber recovery and the mechanical property of ingot casting, cause when serious that whole ingot casting scraps.Therefore, the suitable coverture of necessary selection is protected melt, with preparation high-quality QAl10-4-4 aluminium bronze ingot casting.
For the high characteristics of aluminium content in the QAl10-4-4 aluminium bronze, in order to obtain high-quality aluminium bronze ingot casting, coverture will be brought into play the effect of two aspects simultaneously.One side will stop melt to contact with atmosphere and produce air-breathing oxidation, and coverture is also wanted and can be reacted to reduce the block Al that enters in the crystallizer wall gap with oxide on the other hand
2O
3Quantity, thereby the Al in the minimizing ingot casting
2O
3Slag inclusion.Because the many sport technique segments in the processing preparation are difficult to hold, the production cost of albronze QAl 10-4-4-4-4 is generally higher, yield rate is lower, so the enterprise of domestic this alloy of batch production seldom, especially high-quality albronze QAl 10-4-4-4-4 can't satisfy the demand of China's industrial development especially.
Summary of the invention: purpose of the present invention provides the thin covering of aluminium bronze QAl 10-4-4 semicontinuous ingot casting technology for above-mentioned present situation exactly.The characteristics such as this explained hereafter aluminium bronze has yield rate height, dense structure, metallographic structure is good, product strength is high, plasticity and good toughness and wear and corrosion behavior are strong.
Purpose of the present invention can realize by following scheme.
This experimental design is chosen the mixture of meticulous Powdered " charcoal ash+ice crystal " as the covering agent in the crystallizer, and operate in a kind of " thin covering " mode, be that coverture is with powder type, along with the vibration of crystallizer evenly is sprinkling upon bath surface continuously, and the coverture thickness that at every turn is sprinkled into is less than 1mm.Ice crystal in the coverture makes the Al of bath surface
2O
3Film dissolves rapidly, significantly improves the flowability of bath surface, thereby avoids Al
2O
3Assemble slagging scorification and fold into the ingot casting top layer near the crystallizer inwall, formation is mingled with and cold shut defects.The charcoal ash that adds simultaneously can reduce contacting of melt and air on the one hand, on the other hand with playing lubrication behind the bath surface metal inflow crystallizer inwall.
This technique not only can reach effective covering effect, can reduce the dreg defect on ingot casting top layer, thereby improves quality and the lumber recovery of ingot casting; Also can reduce the consumption of coverture, reduce production costs.
Claims (1)
1. semicontinuous ingot casting preparation method of the thin covering of albronze QAl 10-4-4-4-4, it is characterized in that, adopt " charcoal ash+ice crystal " to form coverture, the charcoal ash, the ice crystal that use in the coverture carry out proportioning in 33%: 67% ratio, coverture is with powder type, along with the vibration of crystallizer evenly is sprinkling upon bath surface continuously, the coverture thickness that at every turn is sprinkled into is less than 1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010193538 CN102039387B (en) | 2010-05-25 | 2010-05-25 | Aluminum bronze QA (Quality Assessment) 110-4-4 thin covering semi-continuous ingot casting technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010193538 CN102039387B (en) | 2010-05-25 | 2010-05-25 | Aluminum bronze QA (Quality Assessment) 110-4-4 thin covering semi-continuous ingot casting technology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102039387A CN102039387A (en) | 2011-05-04 |
| CN102039387B true CN102039387B (en) | 2013-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010193538 Expired - Fee Related CN102039387B (en) | 2010-05-25 | 2010-05-25 | Aluminum bronze QA (Quality Assessment) 110-4-4 thin covering semi-continuous ingot casting technology |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103128242A (en) * | 2011-12-01 | 2013-06-05 | 胡遐秋 | Aluminum bronze semicontinuous ingot casting process |
| CN102605201A (en) * | 2012-03-21 | 2012-07-25 | 南昌大学 | Covering agent for copper and copper alloy smelting |
| CN111979448A (en) * | 2020-08-21 | 2020-11-24 | 孙牛 | QAL10-5-4 aluminum bronze alloy bar production process |
| CN112030034A (en) * | 2020-09-04 | 2020-12-04 | 孙勇 | Production process of high-quality QAL10-5-4 aluminum bronze alloy |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3942580A (en) * | 1973-04-27 | 1976-03-09 | Foseco International Limited | Casting of ingots |
| US4036282A (en) * | 1974-09-04 | 1977-07-19 | Foseco International Limited | Process of ingot casting |
| CN1389435A (en) * | 2002-04-30 | 2003-01-08 | 上海交通大学 | Coating formula for filtering non-metallic inclusion in aluminium melt |
| CN1570162A (en) * | 2004-05-13 | 2005-01-26 | 上海交通大学 | Magnesium and magnesium alloy composite protection fire-proof covering flux and its production method |
| CN1614051A (en) * | 2003-11-04 | 2005-05-11 | 中南大学 | Flux for high-temperature smelting of heat-resistant aluminum alloy |
-
2010
- 2010-05-25 CN CN 201010193538 patent/CN102039387B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3942580A (en) * | 1973-04-27 | 1976-03-09 | Foseco International Limited | Casting of ingots |
| US4036282A (en) * | 1974-09-04 | 1977-07-19 | Foseco International Limited | Process of ingot casting |
| CN1389435A (en) * | 2002-04-30 | 2003-01-08 | 上海交通大学 | Coating formula for filtering non-metallic inclusion in aluminium melt |
| CN1614051A (en) * | 2003-11-04 | 2005-05-11 | 中南大学 | Flux for high-temperature smelting of heat-resistant aluminum alloy |
| CN1570162A (en) * | 2004-05-13 | 2005-01-26 | 上海交通大学 | Magnesium and magnesium alloy composite protection fire-proof covering flux and its production method |
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| CN102039387A (en) | 2011-05-04 |
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Application publication date: 20110504 Assignee: GUIXI JUNDA SPECIAL COPPER Co.,Ltd. Assignor: Hu Xiaqiu Contract record no.: 2013360000141 Denomination of invention: Aluminum bronze QA (Quality Assessment) 110-4-4 thin covering semi-continuous ingot casting technology Granted publication date: 20130313 License type: Exclusive License Record date: 20130930 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
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Assignee: GUIXI JUNDA SPECIAL COPPER Co.,Ltd. Assignor: Hu Xiaqiu Contract record no.: 2013360000141 Date of cancellation: 20160119 |
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Effective date of registration: 20160329 Address after: 330000, Jiangxi Province, Nanchang provincial government compound, East Fourth Road, dragon building, block C, room 409 Patentee after: GUIXI JUNDA SPECIAL COPPER Co.,Ltd. Address before: 335400 Jiangxi city of Yingtan province Guixi city Guixi Junda special Copper Co. Ltd. Patentee before: Hu Xiaqiu |
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| CF01 | Termination of patent right due to non-payment of annual fee |
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