CN1167163A - Iron-carbon-boron composite refining agent for aluminium and aluminium alloy - Google Patents
Iron-carbon-boron composite refining agent for aluminium and aluminium alloy Download PDFInfo
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- CN1167163A CN1167163A CN 97104146 CN97104146A CN1167163A CN 1167163 A CN1167163 A CN 1167163A CN 97104146 CN97104146 CN 97104146 CN 97104146 A CN97104146 A CN 97104146A CN 1167163 A CN1167163 A CN 1167163A
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Abstract
The present invention relates to a new type iron-carbon-boron composite refining agent and its preparation and application in microcrystallization and toughening process of aluminium and aluminium alloy. Its main composition is composed of Al, Ti, Fe, B, C and additional elements. Said invented refining agent is characterized by using in situ autosynthetic second-phase particle as microcrysatllization produced by non-spontaneous nucleation core, and making one combine with its second-phase rigidization action so as to microcrystallize and toughen aluminium and aluminium alloy.
Description
The present invention relates to the novel iron-carbon-boron composite refining agent of a class composition, prepare and be applied to the micritization and the reinforcement toughening process of aluminium and aluminium alloy.
Realize micritization and and then reach highly malleablized, be the important and general research topic that exists in aluminium and aluminium alloy and other metallic substance.Research to grain refining at present mainly comprises two approach, i.e. physical method and chemical process.Specific form is just like rapid solidification, mechanical stirring and interpolation nucleating agent (grain-refining agent) etc., wherein the most effective practicality and economic method is to add nucleating agent.For commercial-purity aluminium and aluminium alloy, the fining agent that uses is AlTiB at present, AlSr, AlTiC, master alloys such as AlRe, wherein Al5Ti1B is one of at present universally acknowledged best grain-refining agent, but thinning effect is unsatisfactory, according to German KBM corporate statistics, add-on is 2 kilograms/ton, and crystal grain can refine to the 274-295 micron, and in use also exist action time short, easily lost efficacy with and the thick TiB2 particle that in alloy, forms can damage roll when the hot rolling, influence the problems such as surface quality of aluminium foil, and can not refinement contain the aluminium alloy of Zr.Though and the AlTiC fining agent that the eighties is developed can refinement multiple alloy, comprise the aldural that contains Zr and Cr, performance is stable not enough, and to the grain refining effect of general aluminium alloy also no more than AlTiB.In a word, the refining effect of these master alloys can't make the performance of aluminium alloy particularly be improved significantly the highly malleablized aspect.
Research for micritization, also has the other method, such as powder metallurgy and rapid solidification, but these methods all have significant limitation in actual applications, powder metallurgy depends on the economy and the production efficiency of powdered preparation in enormous quantities, and rapid solidification can only prepare powder, filament and thin plate, and the high speed of cooling that requires also is extremely inaccessible in actual production.
The present invention is directed to the deficiency of existing method, develop a class NEW TYPE OF COMPOSITE fining agent, promptly based on liquid-solid-phase changeable theory and in-situ authigenic synthetic technology, be intended to by the synthetic fine second-phase dispersion particle of liquid-solid-phase changeable in-situ authigenic, cause aluminium and aluminium alloy height micritization and highly malleablized, thereby reach the purpose of high-strength high-plasticity high tenacity.Be characterized in the micritization that produces as non-spontaneous nucleation core with the in-situ authigenic synthetic second phase particle, with its second mutually strengthening effect combine, make aluminium and aluminium alloy reach micritization and highly malleablized.The low-cost high-efficiency benefit is adapted to extensive chemical industry production.
The present invention proposes the composition of the iron-carbon-boron composite refining agent of a kind of micritization for preparing and be applied to aluminium and aluminium alloy and reinforcement toughening process, it is characterized in that:
Such fining agent main component comprises aluminium (Al), titanium (Ti), iron (Fe), boron (B), carbon (C) and additional constituent element, and the content of each composition is:
Component content (wt.%)
Aluminium (Al) 83.00-99.987
Titanium (Ti) 0.010-6.000
Iron (Fe) 0.001-5.000
Boron (B) 0.001-3.500
Carbon (C) 0.001-2.500
Additional constituent element 0.000-3.000
Said additional constituent element is the aluminium alloy at certain constituents, strengthens the micritization effect of some alloy phase, thereby further improves the obdurability of alloy.
Fining agent in the aforesaid method, when being applied to different aluminium and alloy aluminum, its main component scope can be slightly different, also can increase different constituent element compositions, for example: when being applied to commercial-purity aluminium, its main component scope:
Component content (wt.%)
Aluminium (Al) 92.750-99.987
Titanium (Ti) 0.010-4.500
Iron (Fe) 0.001-0.050
Boron (B) 0.001-1.500
Carbon (C) 0.001-1.000
When being applied to hypoeutectic and cocrystallizing type aluminum silicon alloy, its main component scope can be:
Component content (wt.%)
Aluminium (Al) 83.000-99.985
Titanium (Ti) 0.010-6.000
Iron (Fe) 0.001-4.000
Boron (B) 0.001-3.000
Carbon (C) 0.001-2.000
Strontium (Sr) 0.001-1.000
Mishmetal (RE) 0.000-1.200
When being applied to hypereutectic type aluminum silicon alloy, its main component scope can be:
Component content (wt.%)
Aluminium (Al) 78.500-99.984
Titanium (Ti) 0.010-6.000
Iron (Fe) 0.001-5.000
Boron (B) 0.001-3.500
Carbon (C) 0.001-2.500
Strontium (Sr) 0.001-1.500
Mishmetal (RE) 0.000-1.500
Phosphorus (P) 0.001-1.000
Sulphur (S) 0.001-0.500
When being applied to aluminum bronze class alloy, its main component scope can be:
Component content (wt.%)
Aluminium (Al) 86.500-99.986
Titanium (Ti) 0.010-3.000
Iron (Fe) 0.001-5.000
Boron (B) 0.001-1.500
Carbon (C) 0.001-2.000
Mishmetal (RE) 0.000-1.000
Phosphorus (P) 0.001-1.000
When being applied to magnalium class alloy, its main component scope can be:
Component content (wt.%)
Aluminium (Al) 90.000-99.987
Titanium (Ti) 0.001-3.000
Iron (Fe) 0.001-1.000
Boron (B) 0.001-2.500
Carbon (C) 0.001-2.000
Mishmetal (RE) 0.000-1.500
When being applied to aluminium zinc class alloy, its main component scope can be:
Component content (wt.%)
Aluminium (Al) 92.500-99.987
Titanium (Ti) 0.010-2.500
Iron (Fe) 0.001-1.000
Boron (B) 0.001-1.500
Carbon (C) 0.001-2.500
Mishmetal (RE) 0.000-0.500
The method that the present invention prepares above-mentioned fining agent is to be ready to raw materials such as aluminium, titanium, iron, boron and carbon by each components in proportions of giving first design requirements:
Heat up in crucible furnace or induction furnace and dissolve, the refining slagging-off is cast into ingot, promptly obtains each required constituents and the different shape fining agent of (comprising silk, rod, particle and ingot etc.).
Such NEW TYPE OF COMPOSITE fining agent is in aluminium and aluminium alloy process for refining process, and said fining agent addition is 0.1-2.0 kilogram/ton, and treatment temp is 650-760 ℃, is not less than 1-2 hour working lipe.
Such NEW TYPE OF COMPOSITE fining agent is applicable to the micritization and the highly malleablized of commercial-purity aluminium and all kinds of aluminium alloys.As, to commercial-purity aluminium, grain-size can refine to below the 100 μ m; To aluminium alloy, grain-size can refine to below the 150-200 μ m.Simultaneously, the intensity of commercial-purity aluminium and all kinds of aluminium alloys, plasticity and toughness all are significantly improved.
Embodiment of the present invention are described in detail as follows:
Embodiment 1
When being applied to commercial-purity aluminium, its main component scope:
Component content (wt.%)
Aluminium (Al) 94.999
Titanium (Ti) 3.500
Iron (Fe) 0.001
Boron (B) 0.500
Carbon (C) 1.000
Embodiment 2
Fining agent when being applied to hypoeutectic and cocrystallizing type aluminum silicon alloy, its main component scope:
Component content (wt.%)
Aluminium (Al) 90.490
Titanium (Ti) 2.5000
Iron (Fe) 3.5000
Boron (B) 2.5000
Carbon (C) 1.000
Strontium (Sr) 0.005
Mishmetal (RE) 0.005
Embodiment 3
The micritization of commercial-purity aluminium and highly malleablized:
Commercial-purity aluminium 100 grams, about 760 ℃ of melt Heating temperature, fining agent add-on 0.2-1.0 gram/100 gram aluminium, the component of fining agent and proportioning are titanium (Ti) 3.500, iron (Fe) 0.001, boron (B) 0.500 etc., the molten aluminium insulation is 15 minutes to 2 hours behind the adding fining agent, be cast into 40 millimeters of diameters, high 45 millimeters cylinder ingots in metal mold, the grain-size at 15 millimeters places is about 100 microns apart from the bottom surface.The tensile property of 12 millimeters standard gold genotype samples is
(μ m) σ b (MPa) σ 0.2 (MPa) l (%) does not add fining agent 2000-3000 30-40 20-25 45-50 and adds fining agent～100 70-75 50-60 80-85
Embodiment 4
The micritization of cast aluminium 107 and highly malleablized:
Cast aluminium 107 100 grams, about 760 ℃ of melt Heating temperature, fining agent add-on 0.2-1.0 gram/100 gram aluminium, fining agent component and proportioning are: molten aluminium is incubated about 30 minutes after adding fining agent, be cast into 40 millimeters of diameters, high 45 millimeters cylinder ingots in metal mold, the grain-size at 15 millimeters places is about 150 microns apart from the bottom surface.The tensile property of 12 millimeters standard gold genotype samples (T6 processing) is
Grain-size (μ m) σ b (MPa) σ 0.2 (MPa) l (%) does not add fining agent 4000-5000 320-340 210-230 3-4 and adds fining agent～200 400-430 230-250 9-12
Embodiment 5
The micritization of cast aluminium 104 and highly malleablized:
Cast aluminium 104 100 grams, about 720 ℃ of melt Heating temperature, fining agent add-on 0.2-1.0 gram/100 gram aluminium, molten aluminium is incubated about 30 minutes behind the adding fining agent, be cast into 40 millimeters of diameters, high 45 millimeters cylinder ingots in metal mold, the grain-size at 15 millimeters places is about 200 microns apart from the bottom surface.The tensile property of 12 millimeters standard gold genotype samples (T5 processing) is
Grain-size (μ m) σ b (MPa) σ 0.2 (MPa) l (%) does not add fining agent 4000-5000 240-250 190-200 1-2 and adds fining agent～200 330-350 270-280 5-6
Claims (7)
1, the composition of the iron-carbon-boron composite refining agent of a kind of micritization for preparing and be applied to aluminium and aluminium alloy and reinforcement toughening process is characterized in that:
Such fining agent main component comprises aluminium (Al), titanium (Ti), iron (Fe), boron (B), carbon (C) and the additional constituent element of strengthening the micritization effect, and the content of each composition is:
Component content (wt.%)
Aluminium (Al) 83.00-99.987
Titanium (Ti) 0.010-6.000
Iron (Fe) 0.00l-5.000
Boron (B) 0.001-3.500
Carbon (C) 0.001-2.500
Additional constituent element 0.000-3.000
2, described in claim 1 be applied to commercial-purity aluminium the time fining agent, its main component scope:
Component content (wt.%)
Aluminium (Al) 92.750-99.987
Titanium (Ti) 0.010-4.500
Iron (Fe) 0.001-0.050
Boron (B) 0.001-1.500
Carbon (C) 0.001-1.000
3, described in claim 1 be applied to hypoeutectic and cocrystallizing type aluminum silicon alloy the time fining agent, its main component scope:
Component content (wt.%)
Aluminium (Al) 83.000-99.985
Titanium (Ti) 0.010-6.000
Iron (Fe) 0.001-4.000
Boron (B) 0.001-3.000
Carbon (C) 0.001-2.000
Strontium (Sr) 0.001-1.000
Mishmetal (RE) 0.000-1.200
4, described in claim 1 be applied to hypereutectic type aluminum silicon alloy the time fining agent, its main component scope:
Component content (wt.%)
Aluminium (Al) 78.500-99.984
Titanium (Ti) 0.010-6.000
Iron (Fe) 0.001-5.000
Boron (B) 0.001-3.500
Carbon (C) 0.001-2.500
Strontium (Sr) 0.001-1.500
Mishmetal (RE) 0.000-1.500
Phosphorus (P) 0.001-1.000
Sulphur (S) 0.001-0.500
5, described in claim 1 be applied to aluminum bronze class alloy the time fining agent, its main component scope:
Component content (wt.%)
Aluminium (Al) 86.500-99.986
Titanium (Ti) 0.010-3.000
Iron (Fe) 0.001-5.000
Boron (B) 0.001-1.500
Carbon (C) 0.001-2.000
Mishmetal (RE) 0.000-1.000
Phosphorus (P) 0.001-1.000
6, described in claim 1 be applied to magnalium class alloy the time fining agent, its main component scope:
Component content (wt.%)
Aluminium (Al) 90.000-99.987
Titanium (Ti) 0.001-3.000
Iron (Fe) 0.001-1.000
Boron (B) 0.001-2.500
Carbon (C) 0.001-2.000
Mishmetal (RE) 0.000-1.500
7, described in claim 1 be applied to aluminium zinc class alloy the time fining agent, its main component scope:
Component content (wt.%)
Aluminium (Al) 92.500-99.987
Titanium (Ti) 0.010-2.500
Iron (Fe) 0.001-1.000
Boron (B) 0.001-1.500
Carbon (C) 0.001-2.500
Mishmetal (RE) 0.000-0.500
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97104146A CN1065921C (en) | 1997-04-25 | 1997-04-25 | Iron-carbon-boron composite refining agent for aluminium and aluminium alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97104146A CN1065921C (en) | 1997-04-25 | 1997-04-25 | Iron-carbon-boron composite refining agent for aluminium and aluminium alloy |
Publications (2)
| Publication Number | Publication Date |
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| CN1167163A true CN1167163A (en) | 1997-12-10 |
| CN1065921C CN1065921C (en) | 2001-05-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN97104146A Expired - Fee Related CN1065921C (en) | 1997-04-25 | 1997-04-25 | Iron-carbon-boron composite refining agent for aluminium and aluminium alloy |
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| CN (1) | CN1065921C (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102409192A (en) * | 2010-09-20 | 2012-04-11 | 东北大学 | Aluminum titanium boron carbon rare earth refiner and preparation method thereof |
| CN102560200A (en) * | 2012-01-11 | 2012-07-11 | 山东大学 | Aluminum-titanium-iron-carbon-boron intermediate alloy and preparation method thereof |
| CN103602861B (en) * | 2013-11-12 | 2015-06-17 | 太原理工大学 | Preparation method of magnesium-lithium-aluminum-silicon alloy plate |
| CN106756178A (en) * | 2016-11-23 | 2017-05-31 | 上海交通大学 | Aluminium and its alloy Al-Ti-B-Fe grain refiners and preparation method thereof |
| CN107916348A (en) * | 2017-12-02 | 2018-04-17 | 河北工业大学 | The preparation method of fine grain CuAlMn marmems |
| WO2019153768A1 (en) * | 2018-02-08 | 2019-08-15 | 盐城市鑫洋电热材料有限公司 | High-resistance heat conductive alloy |
| CN111133216A (en) * | 2017-09-26 | 2020-05-08 | 法格霭德兰公司 | Disc brake |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6263640A (en) * | 1986-09-27 | 1987-03-20 | Japan Metals & Chem Co Ltd | Sr-al master alloy for modification of al-si alloy |
| US4937044A (en) * | 1989-10-05 | 1990-06-26 | Timminco Limited | Strontium-magnesium-aluminum master alloy |
-
1997
- 1997-04-25 CN CN97104146A patent/CN1065921C/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102409192A (en) * | 2010-09-20 | 2012-04-11 | 东北大学 | Aluminum titanium boron carbon rare earth refiner and preparation method thereof |
| CN102409192B (en) * | 2010-09-20 | 2014-12-24 | 东北大学 | Aluminum titanium boron carbon rare earth refiner and preparation method thereof |
| CN102560200A (en) * | 2012-01-11 | 2012-07-11 | 山东大学 | Aluminum-titanium-iron-carbon-boron intermediate alloy and preparation method thereof |
| CN103602861B (en) * | 2013-11-12 | 2015-06-17 | 太原理工大学 | Preparation method of magnesium-lithium-aluminum-silicon alloy plate |
| CN106756178A (en) * | 2016-11-23 | 2017-05-31 | 上海交通大学 | Aluminium and its alloy Al-Ti-B-Fe grain refiners and preparation method thereof |
| CN106756178B (en) * | 2016-11-23 | 2019-11-01 | 上海交通大学 | Aluminium and its alloy Al-Ti-B-Fe grain refiner and preparation method thereof |
| CN111133216A (en) * | 2017-09-26 | 2020-05-08 | 法格霭德兰公司 | Disc brake |
| CN107916348A (en) * | 2017-12-02 | 2018-04-17 | 河北工业大学 | The preparation method of fine grain CuAlMn marmems |
| WO2019153768A1 (en) * | 2018-02-08 | 2019-08-15 | 盐城市鑫洋电热材料有限公司 | High-resistance heat conductive alloy |
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| Publication number | Publication date |
|---|---|
| CN1065921C (en) | 2001-05-16 |
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