CN103290271B - Aluminum-titanium-phosphorus-carbon-boron intermediate alloy and preparation method thereof - Google Patents
Aluminum-titanium-phosphorus-carbon-boron intermediate alloy and preparation method thereof Download PDFInfo
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- CN103290271B CN103290271B CN201310273035.8A CN201310273035A CN103290271B CN 103290271 B CN103290271 B CN 103290271B CN 201310273035 A CN201310273035 A CN 201310273035A CN 103290271 B CN103290271 B CN 103290271B
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Abstract
The invention belongs to the field of metal materials and relates to an aluminum-titanium-phosphorus-carbon-boron intermediate alloy of primary silicon and eutectic silicon, which is used in a refinement and modification eutectic and hyper-eutectic aluminum-silicon alloy and a preparation method thereof. As for an intermediate alloy system, a phosphorus element exists in the form of Ti5P3 and TiP0.63 compounds, and the intermediate alloy system further contains micron-scale and submicron-scale TiC and TiB2 particles. The alloy comprises the following chemical components in percentage by weight: 82.00%-96.30% of aluminum, 2.50%-10.00% of titanium, 1.00%-5.00% of phosphorus, 0.10%-2.00% of carbon and 0.10%-1.00% of boron. The preparation steps are as follows: well preparing industrial pure aluminum, an aluminum-phosphorus binary intermediate alloy, an aluminum-boron binary intermediate alloy, pure titanium and graphite powder according to the proportion; and placing the well prepared pure aluminum and the aluminum-boron binary intermediate alloy in a medium-frequency furnace together for melting to 900 DEG C-1100 DEG C, adding the aluminum-phosphorus binary intermediate alloy, stirring for 2-5min, heating to 1100 DEG C-1400 DEG C, simultaneously adding the pure titanium and the graphite powder, performing heat preservation, stirring for 5-30min, and then directly casting to form an ingot or preparing a wire. The prepared aluminum-titanium-phosphorus-carbon-boron intermediate alloy has good refinement and modification effects.
Description
Technical field
The invention belongs to metal material field, particularly a kind of can the aluminium-titanium-phosphorus-carbon-boron master alloy and preparation method thereof of primary silicon and Eutectic Silicon in Al-Si Cast Alloys in fine degenerate aluminium-Si system alloy.
Background technology
At present, in eutectic and hypereutectic aluminium-Si system alloy, the refinement of primary silicon mainly adopts the method for adding phosphorus.Since the patent of the '30s invention in last century phosphorus refinement primary silicon, the research of phosphorous master alloy achieves greater advance, as master alloys such as copper-phosphorus, Solder for Al-Cu Joint Welding-phosphorus, aluminium-iron-phosphorus and aluminium-silicon-phosphorus.Application number be 200510044827 Chinese patent report a kind of containing aluminium, silicon, phosphorus novel master alloy, containing a large amount of preformed AlP particle in this master alloy, it has good thinning effect to primary silicon, and obtains aborning and apply on a large scale.But the AlP compound in this master alloy is easy to be oxidized in atmosphere, be hydrolyzed, thus causes the loss of the phosphorus of master alloy in preservation process.The patent No. is that the Chinese patent of CN101613820B reports a kind of aluminum-zirconium-phosphorus master alloy, wherein form the standing loss problem that a large amount of ZrP compounds solves AlP, but the interpolation of zr element substantially increases the production cost of master alloy, therefore aborning in the urgent need to inventing a kind of phosphorous contained aluminium-base intermediate alloy newly, while reaching good thinning effect, be convenient to long-term preservation and use, and production cost is lower.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, there is provided a kind of to play efficient refinement to the primary silicon in eutectic and hypereutectic aluminum-silicon alloy and significantly improve the aluminium-titanium-phosphorus-carbon-boron master alloy of the mechanical property of alloy, provide that a kind of production cost is low simultaneously, simple process, be applicable to the preparation method of suitability for industrialized production.
The present invention is achieved in the following ways:
A kind of aluminium-titanium-phosphorus-carbon-boron master alloy, comprises aluminium, titanium, phosphoric, it is characterized in that it also containing carbon and boron, the mass percent of each component is: aluminium 82.00%-96.30%, titanium 2.50%-10.00%, phosphorus 1.00%-5.00%, carbon 0.10%-2.00%, boron 0.10%-1.00%; Phosphoric is mainly with Ti
5p
3and TiP
0.63form is present in master alloy; TiC, TiB containing micron order and submicron order
2particle.Ti
5p
3and TiP
0.63particle joins after in eutectic and hypereutectic aluminum-silicon alloy melt, Ti
5p
3and TiP
0.63react with molten aluminium and generate AlP, for primary silicon provides heterogeneous nuclei.Meanwhile, TiC, TiB of introducing
2particle can not only promote the thinning effect of AlP, and energy refinement α-Al crystal grain, and further refining eutectic group, carries heavy alloyed comprehensive mechanical property.
The principle of reaction is the unstable utilizing TiC structure, and P element can be doped in its lattice, and then causes recurring structure to change, and forms Ti
5p
3and TiP
0.63compound, B element plays katalysis to this reaction.
The preparation method of above-mentioned a kind of aluminium-titanium-phosphorus-carbon-boron master alloy, is characterized in that comprising the following steps:
(1) first get out required raw material by following mass percent: the aluminium-phosphorus binary intermediate alloy of 14.30%-72.00%, the aluminium-boron binary intermediate alloy of 3.00%-17.00%, the pure titanium of 2.50%-10.00%, 0.10%-2.00% Graphite Powder 99, remaining is fine aluminium; Wherein in aluminium used-phosphorus binary intermediate alloy, the percentage composition of phosphorus is 5.00%-7.00%, and in aluminium-boron binary intermediate alloy, the percentage composition of boron is 3.00%-6.00%;
(2) fine aluminium prepared is placed in intermediate frequency furnace together with aluminium-boron binary intermediate alloy and is melted to 900 DEG C-1100 DEG C, add aluminium-phosphorus binary intermediate alloy, stir 2-5 minute;
(3) be warming up to 1100-1400 DEG C, add pure titanium and Graphite Powder 99 simultaneously, be incubated and casting ingot-forming or make wire rod after stirring 5-30 minute.
Consisting of of prepared aluminium-titanium-phosphorus-carbon-boron master alloy:
Direct preparation contains Ti
5p
3and TiP
0.63aluminium-titanium-phosphorus-carbon-boron master alloy more difficult, and by add trace carbon and boron as reaction catalyzer, can synthesize containing a large amount of Ti
5p
3and TiP
0.63aluminium-titanium-phosphorus-carbon-boron the master alloy of particle, contained compound is facile hydrolysis, oxidation not, be conducive to the storage of phosphorus, and titanium elements wherein can also play the effect of refinement matrix α-Al crystal grain, is conducive to putting forward heavy alloyed over-all properties.Adopt this master alloy to carry out thinning processing to eutectic and hypereutectic aluminium-Si system alloy, primary silicon wherein by refinement well, and also can play good metamorphism to Eutectic Silicon in Al-Si Cast Alloys.The preparation technology of this alloy is simple, and production efficiency is high, is applicable to scale operation and application.
Embodiment
Provide three most preferred embodiments of the present invention below:
Embodiment 1
(1) raw material is taken by the mass percent of commercial-purity aluminium 9.70%, aluminium-phosphorus binary intermediate alloy 65.00%, aluminium-boron binary intermediate alloy 13.30%, pure titanium 10.00%, Graphite Powder 99 2.00%, the phosphorus content of wherein aluminium-phosphorus binary intermediate alloy is 7.00%, and in aluminium-boron binary intermediate alloy, Boron contents is 6.00%.
(2) fine aluminium prepared is placed in intermediate frequency furnace together with aluminium-boron binary intermediate alloy and is melted to 900 DEG C-1100 DEG C, add aluminium-phosphorus binary intermediate alloy, stir 2-5 minute;
(3) be warming up to 1100 DEG C-1400 DEG C, add pure titanium and Graphite Powder 99 simultaneously, be incubated and direct casting ingot-forming or be prepared into wire rod after stirring 15-25 minute.
Consisting of of prepared aluminium-titanium-phosphorus-carbon-boron master alloy:
Wherein, phosphoric is with Ti
5p
3and TiP
0.63form is present in master alloy; And contain TiC, TiB of micron order and submicron order
2particle.
Embodiment 2
(1) raw material is taken by the mass percent of commercial-purity aluminium 26.00%, aluminium-phosphorus binary intermediate alloy 58.00%, aluminium-boron binary intermediate alloy 10.00%, pure titanium 5.00%, Graphite Powder 99 1.00%, the phosphorus content of wherein aluminium-phosphorus master alloy is 6.00%, and in aluminium-boron master alloy, Boron contents is 4.00%.
(2) fine aluminium prepared is placed in intermediate frequency furnace together with aluminium-boron binary intermediate alloy and is melted to 900 DEG C-1100 DEG C, add aluminium-phosphorus binary intermediate alloy, stir 2-5 minute;
(3) be warming up to 1100 DEG C-1400 DEG C, add pure titanium and Graphite Powder 99 simultaneously, be incubated and direct casting ingot-forming or be prepared into wire rod after stirring 10-15 minute.
Consisting of of prepared aluminium-titanium-phosphorus-carbon-boron master alloy:
Wherein, phosphoric is with Ti
5p
3and TiP
0.63form is present in master alloy; And contain TiC, TiB of micron order and submicron order
2particle.
Embodiment 3
(1) raw material is taken by the mass percent of commercial-purity aluminium 39.80%, aluminium-phosphorus binary intermediate alloy 50.00%, aluminium-boron binary intermediate alloy 6.70%, pure titanium 3.00%, Graphite Powder 99 0.50%, the phosphorus content of wherein aluminium-phosphorus binary intermediate alloy is 5.00%, and in aluminium-boron binary intermediate alloy, Boron contents is 3.00%.
(2) fine aluminium prepared is placed in intermediate frequency furnace together with aluminium-boron binary intermediate alloy and is melted to 900 DEG C-1100 DEG C, add aluminium-phosphorus binary intermediate alloy, stir 2-5 minute;
(3) be warming up to 1100 DEG C-1400 DEG C, add pure titanium and Graphite Powder 99 simultaneously, be incubated and direct casting ingot-forming or be prepared into wire rod after stirring 5-10 minute.
Consisting of of prepared aluminium-titanium-phosphorus-carbon-boron master alloy:
Wherein, phosphoric is with Ti
5p
3and TiP
0.63form is present in master alloy; And contain TiC, TiB of micron order and submicron order
2particle.
Claims (2)
1. aluminium-titanium-phosphorus-carbon-boron master alloy, comprise aluminium, titanium, phosphorus, carbon, boron, the mass percent of each component is: aluminium 82.00%-96.30%, titanium 2.50%-10.00%, phosphorus 1.00%-5.00%, carbon 0.10%-2.00%, boron 0.10%-1.00%; It is characterized in that phosphoric is with Ti
5p
3and TiP
0.63form is present in master alloy; And contain TiC, TiB of micron order and submicron order
2particle.
2. the preparation method of a kind of aluminium-titanium-phosphorus-carbon-boron master alloy according to claim 1, is characterized in that comprising the following steps:
(1) first get out required raw material by following mass percent: the aluminium-phosphorus binary intermediate alloy of 14.30%-72.00%, the aluminium-boron binary intermediate alloy of 3.00%-17.00%, the pure titanium of 2.50%-10.00%, 0.10%-2.00% Graphite Powder 99, remaining is fine aluminium; Wherein in aluminium used-phosphorus binary intermediate alloy, the percentage composition of phosphorus is 5.00%-7.00%, and in aluminium-boron binary intermediate alloy, the percentage composition of boron is 3.00%-6.00%;
(2) fine aluminium is placed in intermediate frequency furnace together with aluminium-boron binary intermediate alloy and is melted to 900 DEG C-1100 DEG C, add aluminium-phosphorus binary intermediate alloy, stir 2-5 minute;
(3) be warming up to 1100-1400 DEG C, add pure titanium and Graphite Powder 99 simultaneously, be incubated and casting ingot-forming or make wire rod after stirring 5-30 minute.
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| CN109881055B (en) * | 2019-03-25 | 2021-06-22 | 常州大学 | One-step method for dual modification of phosphorus and boron of eutectic aluminum-silicon alloy |
| CN110358948B (en) * | 2019-06-11 | 2021-10-01 | 上海交通大学 | Aluminum-titanium diboride-phosphorus intermediate alloy and preparation method thereof |
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| CN100389220C (en) * | 2005-09-28 | 2008-05-21 | 山东大学 | Method for preparing intermediate alloy of aluminum, silicon and posphor |
| CN100575521C (en) * | 2008-09-19 | 2009-12-30 | 山东大学 | A kind of aluminium-titanium-carbon-boron-nitrogen master alloy and preparation method thereof |
| CN101613820B (en) * | 2009-07-15 | 2010-11-03 | 山东大学 | Aluminum-zirconium-phosphorus master alloy and preparation method thereof |
| CN101928862B (en) * | 2010-08-30 | 2012-03-14 | 山东大学 | Aluminum-boron-carbon-nitrogen master alloy and preparation method thereof |
| CN102206777B (en) * | 2011-06-10 | 2013-07-10 | 深圳市新星轻合金材料股份有限公司 | Method for preparing aluminum-zirconium-titanium-carbon intermediate alloy |
| CN102560200B (en) * | 2012-01-11 | 2013-06-19 | 山东大学 | Aluminum-titanium-iron-carbon-boron intermediate alloy and preparation method thereof |
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