CN102002650A - Quartz tube blowing method for preparing columnar block amorphous alloy - Google Patents
Quartz tube blowing method for preparing columnar block amorphous alloy Download PDFInfo
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- CN102002650A CN102002650A CN 201010531857 CN201010531857A CN102002650A CN 102002650 A CN102002650 A CN 102002650A CN 201010531857 CN201010531857 CN 201010531857 CN 201010531857 A CN201010531857 A CN 201010531857A CN 102002650 A CN102002650 A CN 102002650A
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Abstract
The invention relates to a quartz tube blowing method for preparing a columnar block amorphous alloy, which is characterized by comprising the following processes of: placing an alloy in a quartz test tube, heating the quartz test tube by using a fire jet gun, and performing refinement for a long time by coating metal in a molten oxide medium; after the refinement process is finished, placing a sample into a thin needle-shaped quartz tube with 2-3mm in the middle of a special quartz test tube, vacuumizing the test tube, and heating the test tube by using the fire jet gun, so that the alloy solid is molten, wherein the molten alloy is positioned in the uniform part of the test tube at the moment; and when the molten alloy is fully molten, making the molten alloy enter the thin needle-shaped part at the front end of the test tube by the impact of argon gas, and quickly putting the test tube into water, so that the front end is cooled and a solid metal is formed, namely the block amorphous alloy. The invention is characterized in that: the method is simple, the cost is low, the productivity is high, and the formed amorphous alloy has high performance and little harm to environment and is easy to produce and suitable for promotion.
Description
Technical field
The present invention at first utilizes the oxide compound purification techniques that alloy sample is carried out purifying treatment, utilize a kind of silica tube to blow the casting technology then, to blow into after the alloy sample fusion that purify in the column silica tube of thin-walled, thereby make it to obtain big cooling rate, and and then prepare the method for its columnar block amorphous alloy.
Background technology
Atom does not possess long-range order in the amorphous alloy, compare with traditional crystal alloy material, show the performance of many excellences, mechanical property and magnetic property as excellence, extremely strong erosion resistance, and distinctive photoelectric characteristic or the like, this makes amorphous alloy show application prospects, becomes one of focus of type material research in recent decades always.Under many scholars' effort, many great progress in the preparation research of bulk amorphous alloy, have been obtained over the last couple of decades.Many Pd bases with bigger vitrifying formation ability (GFA, Glass Formation Ability), the Zr base, the La base, Mg base, Cu base, multicomponent bulk amorphous alloy systems such as Ti base and Fe base have been found, and their critical size has reached tens millimeters, even millimeter up to a hundred.These bulk amorphous alloys show many very excellent performances, become most active fields in the present investigation of materials, and many outstanding comments are summed up the research of this respect.
1992, human copper mold foundry engieerings such as Inoue were prepared the Mg that critical size reaches 7mm
65Cu
25Y
10The bulk amorphous alloy sample.It mainly by the cylinder sleeve and the piston of master alloy melting, applies the highly compressed water pressure engine, and high voltage bearing casting copper mold can be removed the air-bleed system of gas in crucible and the copper mold rapidly and form before cast.Quick transmission heat by copper mold improves its speed of cooling.Consult Mater.Trans.JIM.1992.33:937-945.
The copper mold foundry engieering of people such as the Inoue that introduces above at present, invention is to prepare the topmost method of bulk amorphous alloy in the world.Yet there are some drawbacks in method in this.Use copper mold as container in this technology, though copper has big heat-conduction coefficient, but make sample obtain bigger cooling rate, but the copper of crystalline state can become potential heterogeneous nucleation position, and this preparation for amorphous alloy is disadvantageous.In this technology, the alloy sample of preparation, crystallization is the place from contacting with copper mold often, just should demonstrate,prove this point.Therefore, in the present invention, we utilize the inert silica tube to replace copper mold.The inert silica tube is not good heterogeneous nucleation position than copper mold, and this is favourable to the preparation amorphous alloy.
Summary of the invention
The present invention realizes like this: (1) utilizes precision balance, according to the element of the correct weighing component alloy of setting of alloying constituent, with firelock their alloys is arrived together under the protective atmosphere of high-purity argon gas then; (2) purify under molten state by the sample of oxide compound purification techniques after, reduce the oxide compound that produces in the impurity, particularly alloying process in the alloy sample alloying; (3) alloy sample after the processing of oxide compound purification techniques is taken out, put into the silica tube of special J-shaped.The J-shaped silica tube is that silica tube and an external diameter of being 15mm by an external diameter are 1～3mm, and the thin silica tube of the thin-walled of the about 0.1～0.3mm of wall thickness links to each other and constitutes.The J-shaped silica tube links to each other with argon bottle with mechanical pump by a T-valve.At first J-shaped silica tube and mechanical pump are connected by T-valve, it is extracted into the vacuum tightness of about 5Pa, by T-valve J-shaped silica tube and argon bottle is connected then, with argon cleaning J-shaped silica tube, again the J-shaped silica tube is vacuumized after finishing, and then use argon cleaning.Three times so repeatedly, be excluded to guarantee the oxygen overwhelming majority in the J-shaped silica tube.Pour a little less than an atmospheric argon gas in the last J-shaped silica tube, the usefulness firelock with alloy melting, uses 1.5 * 10 then in thick silica tube
5The argon gas of Pa is blown into the fused alloy in the thin silica tube of J-shaped silica tube, and utilize firelock that alloy sample is heated, and be in molten state to guarantee alloy sample, rapidly the J-shaped silica tube is inserted in the cold water then, the molten alloy sample is cooled off rapidly, thereby obtain the columnar block amorphous alloy.By the diameter and the wall thickness of thin-walled silica tube thin in the control J-shaped silica tube, can control the cooling rate of alloy sample.
Description of drawings
Fig. 1: example one silica tube blows the casting Experimental equipment.
Fig. 2: the differential scanning calorimetric figure of example one.
Fig. 3: the transmission electron microscope picture of example one.
Fig. 4: the transmission electron microscope picture of example one.
Fig. 5: example one Fe
40Ni
40P
16B
4The sample drawing of bulk amorphous alloy.
Specific embodiment
Embodiment one
Utilize precision balance, according to the element of the correct weighing component alloy of setting of alloying constituent, the back arrives together their alloys with firelock under the protective atmosphere of high-purity argon gas; Alloy with as in the quartz test tube, is heated quartz test tube by firelock, and metal is by B
2O
3Medium liquation parcel is purified for a long time.After purification process finished, it is even that sample is put into front end, and in the very thin quartz test tube of afterbody, our extracting vacuum then up to the vacuum tightness of test tube is～5Pa.Next we heat test tube with firelock, the alloy solid fusing, and this moment, alloy solution was positioned at the even position of test tube, after the alloy liquation fully melts, led to 1Pa * 10 rapidly in the middle of test tube
5-1.5 * 10
5The argon gas of Pa, the alloy liquation is subjected to the punching press of argon gas, enters the very thin needle-like part of test tube front end, and rapidly test tube is put into water, and the solid shape metal that front end cools down and forms is Fe
40Ni
40P
16B
4Bulk amorphous alloy.As Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5.
Claims (6)
1. silica tube blows casting and prepares the column bulk amorphous alloy, it is characterized in that realizing by following flow process: with as in the quartz test tube, by firelock heating quartz test tube, metal is by B alloy
2O
3The liquation parcel is purified for a long time.After purification process finishes, sample is put into special quartz test tube, and (this test tube passed through the calcination test tube middle part of flame after three or four minutes, it is soft that test tube begins to become, this moment, we moved apart flame to test tube, both hands lift two sections in test tube simultaneously, test tube cools down, and just to become two ends even, the middle part is approximately the very thin needle-like silica tube of 2mm-3mm, we blow test tube from the middle part then, it is even that test tube originally just becomes front end, two quartz test tubes that afterbody is very thin), we extract the vacuum in the middle of the test tube then, reach 2-7Pa up to the vacuum tightness of test tube.Next we heat test tube with firelock, the alloy solid fusing, and this moment, alloy solution was positioned at the even position of test tube, after the alloy liquation fully melts, led to 1Pa * 10 rapidly in the middle of test tube
5-1.5 * 10
5The argon gas of Pa, the alloy liquation is subjected to the punching press of argon gas, enters the very thin needle-like part of test tube front end, and rapidly test tube is put into water, and the solid shape metal that front end cools down and forms is bulk amorphous alloy.
2. the method for claim 1 is characterized in that, alloy is put into medium of oxides and purified.
3. the method for claim 1 is characterized in that, quartz test tube is lifted by calcination form bottom needle-like, the uniform quartz test tube of port.
4. the method for claim 1 is characterized in that, it is 2-7Pa that quartz test tube keeps vacuum tightness.
5. the method for claim 1 is characterized in that, the alloy liquation is subjected to the punching press of argon gas, enters the very thin needle-like part of test tube front end.
6. the method for claim 1 is characterized in that, enters the molten alloy of the very thin needle-like part of test tube front end, puts into water and sharply cools off.
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| CN 201010531857 CN102002650A (en) | 2010-11-04 | 2010-11-04 | Quartz tube blowing method for preparing columnar block amorphous alloy |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103805921A (en) * | 2014-01-24 | 2014-05-21 | 新疆大学 | Blow molding method for preparing columnar iron-based bulk amorphous alloy quartz tube by utilizing industrial grade raw materials |
| CN106906432A (en) * | 2017-04-19 | 2017-06-30 | 新疆大学 | A kind of cobalt-base body amorphous state alloy with nearly room temperature magnetothermal effect and preparation method thereof |
| CN107287534A (en) * | 2016-04-11 | 2017-10-24 | 新疆大学 | Base block amorphous state alloys of a kind of Co for biomaterial and preparation method thereof |
| CN109930086A (en) * | 2019-03-04 | 2019-06-25 | 新疆大学 | A kind of iron-base block amorphous state alloy and preparation method thereof with high corrosion resistance |
| CN112974775A (en) * | 2021-01-23 | 2021-06-18 | 郑州大学 | Die, device and method for preparing amorphous alloy pipe |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1786251A (en) * | 2005-11-30 | 2006-06-14 | 浙江大学 | Ni-Nb series large block non crystalline alloy and its preparation method |
| CN101509110A (en) * | 2009-02-23 | 2009-08-19 | 浙江大学 | Fe-based bulk amorphous alloy material and method of producing the same |
-
2010
- 2010-11-04 CN CN 201010531857 patent/CN102002650A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1786251A (en) * | 2005-11-30 | 2006-06-14 | 浙江大学 | Ni-Nb series large block non crystalline alloy and its preparation method |
| CN101509110A (en) * | 2009-02-23 | 2009-08-19 | 浙江大学 | Fe-based bulk amorphous alloy material and method of producing the same |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103805921A (en) * | 2014-01-24 | 2014-05-21 | 新疆大学 | Blow molding method for preparing columnar iron-based bulk amorphous alloy quartz tube by utilizing industrial grade raw materials |
| CN103805921B (en) * | 2014-01-24 | 2016-04-06 | 新疆大学 | A kind of quartz tube blowing casting method utilizing industrial raw material to prepare the iron-base block amorphous state alloy of column |
| CN107287534A (en) * | 2016-04-11 | 2017-10-24 | 新疆大学 | Base block amorphous state alloys of a kind of Co for biomaterial and preparation method thereof |
| CN107287534B (en) * | 2016-04-11 | 2019-05-31 | 新疆大学 | Base block amorphous state alloy of a kind of Co for biomaterial and preparation method thereof |
| CN106906432A (en) * | 2017-04-19 | 2017-06-30 | 新疆大学 | A kind of cobalt-base body amorphous state alloy with nearly room temperature magnetothermal effect and preparation method thereof |
| CN106906432B (en) * | 2017-04-19 | 2020-08-14 | 新疆大学 | Application of cobalt-based bulk amorphous alloy |
| CN109930086A (en) * | 2019-03-04 | 2019-06-25 | 新疆大学 | A kind of iron-base block amorphous state alloy and preparation method thereof with high corrosion resistance |
| CN112974775A (en) * | 2021-01-23 | 2021-06-18 | 郑州大学 | Die, device and method for preparing amorphous alloy pipe |
| CN112974775B (en) * | 2021-01-23 | 2022-07-15 | 郑州大学 | Die, device and method for preparing amorphous alloy pipe |
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Application publication date: 20110406 |