CN100489132C - Method of preparing original position particle reinforced zinc-based composite material - Google Patents
Method of preparing original position particle reinforced zinc-based composite material Download PDFInfo
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- CN100489132C CN100489132C CNB2007100204583A CN200710020458A CN100489132C CN 100489132 C CN100489132 C CN 100489132C CN B2007100204583 A CNB2007100204583 A CN B2007100204583A CN 200710020458 A CN200710020458 A CN 200710020458A CN 100489132 C CN100489132 C CN 100489132C
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Abstract
The invention discloses a preparing method of original position particle reinforced zinc group composite material in metallic group composite material producing technical domain, which comprises the following steps: adopting flux reacting method to preparing original position composite particle reinforced aluminum group composite material slurry; melting zinc or aluminum zinc alloy; confirming the quantity of aluminum group composite material needed according to the required reinforced particle volume fraction, the content of aluminum in this composite material and volume fraction of aluminum zinc alloy; adding into zinc or aluminum zinc alloy fondant; stirring slowly; getting the product. The industrial reacting temperature is small, which influenced by zinc and zinc alloy.
Description
Technical field
The present invention relates to the preparing technical field of metal-base composites, promptly adopt original position synthesis particle reinforced aluminum matrix composites or its slurry and zinc or zinc alloy liquid to be mixed with the preparation method of original position particle reinforced zinc-based composite material.
Background technology
In recent years, because the P/C ratio of aluminium zinc excellence, Chinese scholars has been carried out number of research projects to aluminium zinc, and its research range is very extensive, constantly obtain new progress, one of them important aspect is exactly the Application and Development of Zinc-base compounded material.The Zinc-base compounded material of Application and Development mostly is and adds particle reinforced zinc-based composite material at present, mainly adopts melt paddling process preparation (as " preparation of SiCp/ZA27 matrix material and the performance under the high-energy ultrasonic effect " of " casting " 2003 the 4th phases).But adopt the melt paddling process to prepare in the process of metal-base composites,, make small size, high-content strengthen body disperse difficulty in melt, skewness because the wettability of ceramic enhanced granule and liquid metal is poor; Recombination process also is accompanied by the generation of harmful chemical reaction usually, and material impact toughness is descended.At these situations, many recombining process have been developed, as the powder metallurgic method, mechanical alloying method etc. of utilizing comparative maturity have obtained, and surface reaction is not serious, to strengthen body burden higher, the equally distributed metal-base composites of energy, but it is higher that shortcoming is a cost, and also poor for the zinc alloy suitability.For this reason, seek a kind ofly can significantly improve particle/melt wettability, promote particle homodisperse in melt, technology Zinc-base compounded material preparation method easy, with low cost is very necessary.
Execute faithful and upright person people such as (Zhong-liang Shi) and (see Structure control of in-situsilicon particle reinforcedZn-27Al composite materials.Journal of Materials Processing Technology, 1997:417-420) the method in-situ preparing Zinc-base compounded material of hypereutectic Al-Si alloy semi solid slurry and Zn-Al alloy melt-mixing is adopted in proposition, has obtained the well-distributed Zinc-base compounded material of silicon grain.But this method itself has its limitation, and the particle of generation can only be a silicon grain, and volume fraction also is greatly limited.Therefore, how to utilize original position to generate the wetting good advantage of matrix material enhanced granule/melt interface, widen the type of the enhanced granule that is generated simultaneously, and effectively control the volume fraction of enhanced granule, just become the key of development of new Zinc-base compounded material and technology of preparing thereof.
Summary of the invention
The objective of the invention is to propose a kind of technology of preparing of original position particle reinforced zinc-based composite material, promptly adopt original position synthesis particle reinforced aluminum matrix composites or its slurry and zinc or zinc alloy liquid to be mixed with the preparation method of original position particle reinforced zinc-based composite material.
Particularly be: at first adopt the fusant reaction method to prepare original position synthesis particle reinforced aluminum matrix composites slurry, simultaneously with zinc or aluminium zinc fusing.When zinc is melted, according to the volume fraction of enhanced granule in the quality percentage composition of aluminium in desired enhanced granule volume fraction, this Zinc-base compounded material matrix alloy in the original position particle reinforced zinc-based composite material that will prepare and the original position synthesis particle reinforced aluminum matrix composites slurry prepared, in the zinc melt, need to determine the amount of the original position synthesis particle reinforced aluminum matrix composites slurry that adds; And fusing also will be considered the quality percentage composition of aluminium in the aluminium zinc during aluminium zinc simultaneously, thereby need in the aluminium zinc melt to determine the amount of the original position synthesis particle reinforced aluminum matrix composites slurry that adds.The original position synthesis particle reinforced aluminum matrix composites slurry that quantitatively goes out is joined in zinc or the aluminium zinc melt, slowly stir, exceed, prepare original position particle reinforced zinc-based composite material not cause that alloy melt acutely seethes.
The matrix alloy of Zinc-base compounded material is generally high alumina zinc base alloy, as ZA22, ZA27 or ZA35.
According to actual needs, also can prepare original position synthesis particle reinforced aluminum matrix composites blank earlier, as requested the aluminum matrix composite blank be carried out remelting then, the preparation original position particle reinforced zinc-based composite material.Can also directly join remelting in zinc or the aluminium zinc liquid to original position synthesis particle reinforced aluminum matrix composites blank, the preparation original position particle reinforced zinc-based composite material.In mixing or direct reflow process, carry out necessary stirring to melt, agglomeration appears to prevent enhanced granule.
The major advantage of this technology of preparing has:
1) original position synthesis particle reinforced aluminum matrix composites slurry directly mixes with zinc or zinc alloy liquid, helps the homodisperse of enhanced granule;
2) chemical reaction temperature of generation original position enhanced granule is subjected to the restriction of zinc or zinc alloy little, helps selecting the enhanced granule of adequate types, adopts Al respectively as preparing
2O
3, TiB
2+ Al
3Ti, ZrB
2+ Al
3Zr and Al
2O
3+ ZrB
2+ Al
3All kinds of particle enhanced of Zr original position particle reinforced zinc-based composite material;
3) by controlling the enhanced granule volume fraction and the add-on of aluminum matrix composite in zinc base alloy of the aluminum matrix composite itself that adds, can control the volume fraction of original position enhanced granule in the Zinc-base compounded material effectively.
In a word, by above-mentioned technology of preparing, can successfully prepare the original position particle reinforced zinc-based composite material that the enhanced granule volume fraction is controlled, be evenly distributed.
Description of drawings
Fig. 1 8.5%Al
2O
3The SEM photo of particle reinforced zinc-based composite material
Embodiment
Choosing specific embodiment according to technical scheme of the present invention describes as follows:
Embodiment 1
At first adopt the fusant reaction method, 720 ℃ are added Al in fine aluminium
2(SO
4)
3, by the mechanical stirring method it is dispersed in the molten aluminium, and under this temperature, prepares and contain Al by chemical reaction
2O
3The original position of particle 15% (volume fraction) is synthesized Al
2O
3The particle enhanced aluminum-based composite material slurry is simultaneously with the pure zinc fusing of 1300 grams.The matrix of the original position particle reinforced zinc-based composite material for preparing is selected ZA 27 alloy, the composition of ZA 27 alloy require be: Al is 25%～28%, Cu is 1.5%～2.5%, Mg is 0.01%～0.03%.According to this composition requirement, the synthetic Al of original position
2O
3The enhanced granule volume fraction that requires in the particle enhanced aluminum-based composite material slurry and the original position particle reinforced zinc-based composite material that will prepare, the add-on of each composition material requires as shown in table 1.With particle enhanced aluminum-based composite material slurry and zinc liquid uniform mixing, promptly prepare the original position particle reinforced zinc-based composite material that matrix is a ZA 27 alloy.Prepared original position particle reinforced zinc-based composite material scanning electron microscope (SEM) photo such as Fig. 1, Al in the Zinc-base compounded material
2O
3The actual volume mark of enhanced granule is 8.5%.
Table 1 preparation Al
2O
3pThe amount of the employed various materials of/ZA27 matrix material
Embodiment 2
At first to the fusant reaction method, 720 ℃ are added Al in fine aluminium
2(SO
4)
3, by the mechanical stirring method it is dispersed in the molten aluminium, and under this temperature, contains 15% (volume fraction) Al by what chemical reaction was prepared
2O
3The synthetic particle enhanced aluminum-based composite material blank of particulate reaction carries out remelting, simultaneously with 1200 gram ZA6 aluminium zinc fusings.The matrix of the original position particle reinforced zinc-based composite material for preparing is selected the ZA35 alloy, the composition of ZA35 alloy require be: Al is 34%～36%, Cu is 2.3%～2.5%, Mg is 0.02%～0.04%.According to this composition requirement, the synthetic Al of original position
2O
3The enhanced granule volume fraction that requires in the particle enhanced aluminum-based composite material slurry and the original position particle reinforced zinc-based composite material that will prepare, the add-on of each composition material requires as shown in table 2.With particle enhanced aluminum-based composite material slurry and ZA6 aluminium zinc melt uniform mixing, prepare the original position particle reinforced zinc-based composite material that matrix is the ZA35 alloy.Al in the prepared original position particle reinforced zinc-based composite material
2O
3The actual volume mark of enhanced granule is 8.0%.
Table 2 preparation Al
2O
3pThe amount of the employed various materials of/ZA35 matrix material
Embodiment 3
At first adopt the fusant reaction method, 720 ℃ are added K in fine aluminium
2TiF
6And KBF
4Mixing salt, and it is dispersed in the molten aluminium by the mechanical stirring method, about 850 ℃, prepare (TiB then by chemical reaction
2+ Al
3Ti) the composite grain volume fraction is 10% original position synthesis particle reinforced aluminum matrix composites slurry, simultaneously with the pure zinc fusing of 1300 grams.The matrix of the original position particle reinforced zinc-based composite material for preparing is selected ZA 27 alloy, the composition of ZA 27 alloy require be: Al is 25%～28%, Cu is 1.5%～2.5%, Mg is 0.01%～0.03%.According to this composition requirement, the synthetic (TiB of original position
2+ Al
3Ti) the enhanced granule volume fraction that requires in the particle enhanced aluminum-based composite material slurry and the original position particle reinforced zinc-based composite material that will prepare, the add-on of each composition material requires as shown in table 3.With particle enhanced aluminum-based composite material slurry and zinc liquid uniform mixing, prepare the original position particle reinforced zinc-based composite material that matrix is a ZA 27 alloy.(TiB in the prepared original position particle reinforced zinc-based composite material
2+ Al
3Ti) the actual volume mark of enhanced granule is 5.2%.
Table 3 preparation (TiB
2+ Al
3Ti)
pThe amount of the employed various materials of/ZA27 matrix material
Embodiment 4
At first adopt the fusant reaction method, 720 ℃ are added Zr (CO in fine aluminium
3)
2, and it is dispersed in the molten aluminium by the mechanical stirring method, about 850 ℃, prepare (Al then by chemical reaction
2O
3+ Al
3Zr) the composite grain volume fraction is 15% original position synthesis particle reinforced aluminum matrix composites slurry, simultaneously the just pure zinc fusing of 1300 grams.The matrix of the original position particle reinforced zinc-based composite material for preparing is selected ZA 27 alloy, the composition of ZA 27 alloy require be: Al is 25%～28%, Cu is 1.5%～2.5%, Mg is 0.01%～0.03%.According to this composition requirement, the synthetic (Al of original position
2O
3+ Al
3Zr) the enhanced granule volume fraction that requires in the particle enhanced aluminum-based composite material slurry and the original position particle reinforced zinc-based composite material that will prepare, the add-on of each composition material requires as shown in table 4.With particle enhanced aluminum-based composite material slurry and zinc liquid uniform mixing, go out the original position particle reinforced zinc-based composite material that matrix is a ZA 27 alloy.(Al in the prepared original position particle reinforced zinc-based composite material
2O
3+ Al
3Zr) the actual volume mark of enhanced granule is 8.3%.
Table 4 preparation (Al
2O
3+ Al
3Zr)
pThe amount of the employed various materials of/ZA27 matrix material
Claims (3)
1, the preparation method of original position particle reinforced zinc-based composite material is characterized in that: at first adopt the fusant reaction method to prepare original position synthesis particle reinforced aluminum matrix composites slurry, simultaneously with zinc or aluminium zinc fusing; When zinc is melted, according to the volume fraction of enhanced granule in the quality percentage composition of aluminium in desired enhanced granule volume fraction, this Zinc-base compounded material matrix alloy in the original position particle reinforced zinc-based composite material that will prepare and the original position synthesis particle reinforced aluminum matrix composites slurry prepared, in the zinc melt, need to determine the amount of the original position synthesis particle reinforced aluminum matrix composites slurry that adds; And fusing also will be considered the quality percentage composition of aluminium in the aluminium zinc during aluminium zinc simultaneously, thereby need in the aluminium zinc melt to determine the amount of the original position synthesis particle reinforced aluminum matrix composites slurry that adds; The aluminum matrix composite slurry that quantitatively goes out is joined in zinc or the aluminium zinc melt, slowly stir, exceed, prepare original position particle reinforced zinc-based composite material not cause that alloy melt acutely seethes.
2. the preparation method of a kind of original position particle reinforced zinc-based composite material according to claim 1, it is characterized in that: the Zinc-base compounded material matrix alloy is a high alumina zinc base alloy.
3, a kind of preparation method of original position particle reinforced zinc-based composite material, it is characterized in that: the fusant reaction method described in the claim 1 is prepared as requested the aluminum matrix composite blank is carried out remelting after original position synthesis particle reinforced aluminum matrix composites pulp preparation becomes blank earlier, simultaneously with zinc or aluminium zinc fusing; When zinc is melted, according to the volume fraction of enhanced granule in the aluminum matrix composite slurry of the quality percentage composition of aluminium in desired enhanced granule volume fraction, this Zinc-base compounded material matrix alloy in the original position particle reinforced zinc-based composite material that will prepare and the remelting of having prepared, in the zinc melt, need to determine the amount of the original position synthesis particle reinforced aluminum matrix composites remelting slurry that adds; And fusing also will be considered the quality percentage composition of aluminium in the aluminium zinc during aluminium zinc simultaneously, thereby need in the aluminium zinc melt to determine the amount of the aluminum matrix composite slurry of the remelting that adds; The aluminum matrix composite slurry that quantitatively goes out is joined in zinc or the aluminium zinc melt, slowly stir, exceed, prepare original position particle reinforced zinc-based composite material not cause that alloy melt acutely seethes.
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| CN100489132C true CN100489132C (en) | 2009-05-20 |
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| CN102179505B (en) * | 2011-04-15 | 2012-12-19 | 江苏大学 | Method for refining metal solidification structure by using pulsed magnet field and pulse current with same frequency |
| CN104458495B (en) * | 2014-11-28 | 2017-01-18 | 中国科学院金属研究所 | Method for measuring particle volume fraction of reinforced body in particle-reinforced metal-based composite material |
| CN108015259A (en) * | 2016-11-14 | 2018-05-11 | 江苏兄弟活塞有限公司 | A kind of inlay casting method of aluminum-based in-situ composite materials piston |
| CN109778014B (en) * | 2019-03-18 | 2020-09-08 | 武汉科技大学 | Cast antifriction wear-resistant high-aluminum zinc-based composite material and preparation method thereof |
| CN112126811A (en) * | 2020-09-25 | 2020-12-25 | 长沙而道新能源科技有限公司 | Porcelain formula and production process |
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2007
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Non-Patent Citations (4)
| Title |
|---|
| Al2O3(p)/ZA35锌基复合材料的制备及其摩擦性能. 牛玉超，边秀房，耿浩然，王伟民.中国有色金属学报，第14卷第4期. 2004 |
| Al2O3(p)/ZA35锌基复合材料的制备及其摩擦性能. 牛玉超，边秀房，耿浩然，王伟民.中国有色金属学报，第14卷第4期. 2004 * |
| 原位生成TiB2/ZA27复合材料的制备与性能. 崔峰，耿浩然，钱宝光，田宪法，郁可.复合材料学报，第21卷第4期. 2004 |
| 原位生成TiB2/ZA27复合材料的制备与性能. 崔峰，耿浩然，钱宝光，田宪法，郁可.复合材料学报，第21卷第4期. 2004 * |
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Assignee: Jiangsu Jinxiang Speed Reducer Co., Ltd. Assignor: Jiangsu University Contract record no.: 2010320000747 Denomination of invention: Method of preparing original position particle reinforced zinc-based composite material Granted publication date: 20090520 License type: Exclusive License Open date: 20070815 Record date: 20100611 |