CN104190905A - Mold suitable for manufacturing large-size blocky amorphous alloy and amorphous alloy composite material - Google Patents
Mold suitable for manufacturing large-size blocky amorphous alloy and amorphous alloy composite material Download PDFInfo
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- CN104190905A CN104190905A CN201410457214.1A CN201410457214A CN104190905A CN 104190905 A CN104190905 A CN 104190905A CN 201410457214 A CN201410457214 A CN 201410457214A CN 104190905 A CN104190905 A CN 104190905A
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Abstract
The invention relates to a mold suitable for manufacturing large-size blocky amorphous alloy and an amorphous alloy composite material. The mold comprises an internal mold made of red copper and further comprises an external mold made of stainless steel, wherein the external mold is provided with an upper opening. The internal mold is of a split type and is clamped in the external mold, and a gap is formed between the bottom of the internal mold and the external mold. A cavity between the internal mold and the external mold is filled with gallium and indium alloy. The inner side of the external mold is vertically provided with positioning clamping grooves. Convex strips on the internal mold are clamped in the positioning clamping grooves. The internal mold is divided into two symmetrical parts. A sealing groove is machined in a parting surface and used for arranging a sealing strip. The two symmetrical parts are connected through fastening bolts. The whole mold is composed of a cooling part and a forming part, repeated machining of the cooling part is avoided, and mold materials are greatly saved; besides, the mold is reasonable in structure, simple, convenient to operate and especially suitable for machining the large-size blocky amorphous alloy.
Description
Technical field
The invention belongs to the preparation field of block amorphous alloy and composite thereof.Particularly a kind of mould that is suitable for preparing large volume block amorphous alloy and composite thereof.
Background technology
Non-crystaline amorphous metal, because its unique internal structure has special performance, has broad application prospects, and is the study hotspot of material science, Condensed Matter Physics and mechanics field in recent years always.Non-crystaline amorphous metal, in the time of moulding, needs higher cooling velocity to suppress crystal forming core, grow up, and therefore, often can only obtain the amorphous sample of reduced size, and this problem has seriously limited the extensive use of non-crystaline amorphous metal.The large volume block amorphous alloy of preparation difformity, size is the key technology that various countries scholar is tackling key problems always.
In recent years, copper mold casting method is to prepare the main method that bulk amorphous alloy adopts always, comprise suction casting method, spray to cast method, casting method etc., its common ground is that the liquid metal of melting is injected to the copper mold with definite shape inner chamber fast, by the heat-sinking capability of copper mold, make aluminium alloy cooling fast, obtain bulk amorphous alloy.This copper mold is generally made with fine copper, is generally two solid copper billets of left and right parting, forms die cavity after matched moulds, and in order to ensure sufficient cooling capacity, the volume of copper mold must be enough large.For example, conventional suction cast copper mould, its outside diameter is 100mm, high 100 ~ 120mm, weight is about 7.5kg.
Above-mentioned copper mold used in use, two distinct issues of existence: the one, the as a whole parts of copper mold, have the inner chamber of a fixed dimension, can only be used for preparing a kind of bulk amorphous alloy of solid shape.Prepare difform bulk amorphous alloy, must process different copper molds, and the materials of copper mold own are many, therefore manufacturing cost is high; The 2nd, prepare large volume (as 10000mm
3or large scale more) bulk amorphous alloy time, the also corresponding increase of required copper mold volume, weight increases, and is not easy to operation.For Second Problem, people on the basis of above-mentioned copper mold, in copper mold water flowing cooling, i.e. water cooled copper mould.Water cooled copper mould can provide stronger cooling capacity, but makes the processing technology of mould become complicated, meanwhile, requires cooling water to introduce the vacuum chamber of electric arc furnaces or induction furnace, uses inconvenience.And still there is above-mentioned first problem in water cooled copper mould.
Summary of the invention
The present invention will provide a kind of mould that is suitable for preparing large volume block amorphous alloy and composite thereof, with reach cooling capacity controlled, be convenient to prepare difformity, and easy to use, processing technology is simple, can reduce the object of preparation cost.
For achieving the above object, a kind of mould that is suitable for preparing large volume block amorphous alloy and composite thereof provided by the invention, comprise red copper internal mold, it is characterized in that: the stainless external mold that also comprises upper shed, described internal mold is split type, inner membrance is arranged in external mold and between the bottom of internal mold and external mold spacing, is filled with gallium indium alloy in the cavity between internal mold and external mold.
Inner side at external mold is vertically installed with locating groove, and the raised line on internal mold is arranged in locating groove.
Internal mold is divided into symmetrical two parts, is processed with the seal groove of laying sealing strip on die joint, and symmetrical two parts connect by fastening bolt.Mould in use, is first placed in sealing rubber strip in seal groove, with fastening bolt by fastening symmetrical two parts matched moulds.
Compared with prior art, advantage of the present invention is:
1, the present invention becomes independently two parts by the cooling of traditional copper mold with moulding two-phase Function Decomposition, and a whole set of mould is made up of cooling and moulding two parts, has avoided the processing that repeats of cooling segment.In the present invention, external mold and cooling medium provide and prepare the required cooling capacity of non-crystaline amorphous metal, the red copper internal mold using only has moulding function, as long as suitable inner chamber can be provided, no longer be to provide the main body of cooling capacity, therefore any profile all can be accepted, as long as have can be fixing with external mold raised line, so model volume, weight are less in red copper, in preparation large volume (as 10000mm
3left and right) bulk amorphous alloy time, about be only 400g, saved greatly mold materials.
If 2 prepare the bulk amorphous alloy of difformity, size with this mould, only needing to change the internal mold that fine copper (red copper) makes can realize, and internal mold cost provided by the invention is low, and in the time of Multiple Shape multiple, it is higher that its cost advantage embodies.
3, play the disposable input of part of refrigerating function, stainless steel external mold simple shape wherein, easy to process, can be repeatedly used; Gallium indium alloy is also disposable input, can reuse for a long time, just can regulate the cooling capacity of mould by changing the amount of gallium indium alloy, is suitable for preparing the block amorphous alloy of various shape.
4, while preparing the bulk amorphous alloy of difformity, size, only need the internal mold that replacement cost is lower, and play the disposable input of part of refrigerating function, external mold and cooling medium need not be changed.While preparing bulk amorphous alloy, only need change internal mold die cavity, in external mold, add more cooling mediums.
5, rational in infrastructure, simple, easy to operate.The present invention adopts internal mold to insert the fixed form of external mold, makes the extremely easy to use of a whole set of mould, and internal mold is split mechanism simultaneously, is convenient in demoulding, and has improved operating efficiency.
6, applied widely: suitable especially processing large volume bulk amorphous alloy.
Brief description of the drawings
Fig. 1 is the assembling schematic diagram of a whole set of mould;
Fig. 2 is the partial sectional view of a whole set of mould;
Fig. 3 is the internal mold schematic diagram of preparing rectangle sheet amorphous;
Fig. 4 is the transverse sectional view of preparing the internal mold of rectangle sheet amorphous;
Fig. 5 is the longitudinal sectional view of preparing the internal mold of rectangle sheet amorphous;
Fig. 6 is the internal mold schematic diagram of preparing round sheet amorphous;
Fig. 7 is the transverse sectional view of preparing the internal mold of round sheet amorphous;
Fig. 8 is the longitudinal sectional view of preparing the internal mold of round sheet amorphous;
Fig. 9 is the internal mold schematic diagram of the cylindric amorphous of preparation;
Figure 10 is the transverse sectional view of the internal mold of the cylindric amorphous of preparation;
Figure 11 is the longitudinal sectional view of the internal mold of the cylindric amorphous of preparation;
Figure 12 is bulk amorphous alloy sample prepared by embodiment 1;
Figure 13 is the XRD figure of the bulk amorphous alloy prepared of embodiment 1.
In figure, 1-external mold, 2-gallium indium alloy, 3-internal mold, 4-sealing strip, 5-fastening bolt, 6-locating groove.
Detailed description of the invention
referring to Fig. 1,a kind of mould that is suitable for preparing bulk amorphous alloys and composite thereof, comprise red copper internal mold 3, also comprise the stainless external mold 1 of upper shed, described internal mold 3 is split type, be divided into symmetrical two parts, on die joint, be processed with the seal groove of laying sealing strip 4, symmetrical two parts connect by fastening bolt 5.Be vertically installed with locating groove 6 in the inner side of external mold 1, raised line on internal mold 3 is arranged in the locating groove 6 on external mold 1, in cavity between internal mold 3 and external mold 1, be filled with gallium indium alloy 2, between the bottom of internal mold 3 and external mold 1, there is spacing, the space of bottom can make 2 one-tenth of gallium indium alloys as a whole like this, ensures that the heat radiation of copper mold is even.
The present invention is in the time of design, to prepare maximum volume as 15000mm
3cuZr base amorphous be reference, stable in order to ensure the institutional framework of non-crystaline amorphous metal, require gallium indium alloy 2 in cooling procedure, himself temperature is no more than 50 DEG C.By 15000mm
3(heavy 114g.Conventionally inhale casting amorphous materials 15 ~ 25g), the liquid Cu of 1300 DEG C
50zr
50in alloy cool to room temperature process, will discharge the heat of 48692.25J, the heat of establishing liquid alloy all passes to gallium indium alloy 2, needs 6.19kg(970ml) gallium indium alloy 2, can ensure that the temperature of mould is no more than 50 DEG C.Minute simultaneously, the cooldown rate of mould reaches 5.2 × 10
2k/s, can meet and prepare the requirement of non-crystaline amorphous metal to cooldown rate.
The method of assembly jig is: mould in use, first sealing strip 4 is placed in to locating groove 6 places of internal mold 3, with fastening bolt 5, by after fastening two halves internal mold 3 matched moulds, locating groove 6 places that red copper internal mold 3 inserted to stainless steel external mold 1 are fixed, and finally gallium indium alloy 2 are filled with to external mold 1.A whole set of mould is placed in to the bottom of melting pot, regulates suitable casting position.Raw material, after electric arc melting or induction melting, sprays into or pours into internal mold 3 fast.
embodiment 1:arc melting method casting 10000mm
3cuZrAlY amorphous plate
1) Zr that is 99.8% by purity, Cu, Al that purity is 99.99%, Y are according to Cu
45zr
45al
8y
2nominal composition batching 100g, be placed in electric arc furnaces;
2) electric arc furnaces is vacuumized, vacuum reaches 5 × 10
-3after Pa, be filled with argon gas to 0.8 atmospheric pressure, first molten Ti oxygen uptake, then by joined raw material melting 3 ~ 5 times, guarantee that composition is even, obtain button shape master alloy ingot.
3), referring to Fig. 3, Fig. 4, Fig. 5, select die cavity to be of a size of 50 × 50 × 4mm
3internal mold 3 prepare rectangle sheet amorphous, sealing strip 4 is placed in to locating groove 6 places of internal mold 3, with fastening bolt 5, by after fastening two halves internal mold 3 matched moulds, locating groove 6 places that red copper internal mold 3 inserted to stainless steel external mold 1 are fixed, and finally the gallium indium alloy 2 of 4.5kg are filled with to external mold 1.The mould assembling is put into vacuum chamber, regulate correct position, guarantee that aluminium alloy can pour into mould smoothly.
4) foundry alloy is put into casting crucible, starts electric arc foundry alloy is melted again, and melting, after 1 minute, is closed electric arc moment, and liquid alloy is watered progressive die tool by the crucible that verts fast.
5) after cooling number minute, open vacuum chamber, take out mould, turn on fastening bolt 5, separately red copper internal mold 3, takes out non-crystaline amorphous metal sample.
Referring to Figure 12 and Figure 13, gained sample detects through XRD, and crystal phase is not all found at each position, and sample is amorphous structure completely.
embodiment 2:induction melting casting 7000mm
3cuZrTi amorphous composite material disk
1) Zr that is 99.8% by purity, Cu, Ti that purity is 99.99% are according to Cu
60zr
30ti
10nominal composition batching 50g, put into the magnesia crucible of internal diameter 60mm, dark 80mm;
2) referring to Fig. 6, Fig. 7, Fig. 8, the internal mold of selecting die cavity to be of a size of Φ 60mm, thick 2.5mm is prepared round sheet amorphous, sealing strip 4 is placed in to locating groove 6 places of internal mold 3, with fastening bolt 5 by after fastening two halves internal mold 3 matched moulds, locating groove 6 places that red copper internal mold 3 inserted to stainless steel external mold 1 are fixed, and finally the gallium indium alloy 2 of 3.5kg are filled with to external mold 1.The mould assembling is put into vacuum chamber, regulate correct position, guarantee that aluminium alloy can pour into mould smoothly.
3) induction furnace is vacuumized, vacuum reaches 5 × 10
-3after Pa, be filled with argon gas to 0.8 atmospheric pressure, start high frequency electric source raw material is melted, after alloy melts completely, insulation 2min makes its composition even.
4) crucible that verts, pours into mold cavity by molten alloy liquid.
5) after cooling number minute, open vacuum chamber, take out mould, turn on fastening bolt 5, separately red copper internal mold 3, takes out non-crystaline amorphous metal sample.
Gained sample detects through XRD, the composite coexisting for crystal phase and amorphous phase.
embodiment 3: eddy-current heating spray to cast 4000mm
3the non-crystal bar of CuZrAlY
1) Zr that is 99.8% by purity, Cu, Al that purity is 99.99%, Y are according to Cu
41zr
49al
8y
2nominal composition batching 30g; Guarantee that through electric arc melting composition is even for 3 ~ 5 times, after Mechanical Crushing, packing bottom into has the quartz ampoule of nozzle, then quartz ampoule is installed in vacuum induction melting furnace.
2), referring to Fig. 9, Figure 10, Figure 11, select die cavity to be of a size of Φ 10
mm, long 60mminternal mold 3 prepare cylindric amorphous, sealing strip 4 is placed in to locating groove 6 places of internal mold 3, with fastening bolt 5, by after fastening two halves internal mold 3 matched moulds, locating groove 6 places that red copper internal mold 3 inserted to stainless steel external mold 1 are fixed, and finally the gallium indium alloy 2 of 2.5kg are filled with to external mold 1.The mould assembling is put into vacuum chamber, regulate correct position, guarantee that quartz ampoule nozzle and mold cavity are on same vertical line.
3) induction furnace is vacuumized, vacuum reaches 5 × 10
-3after Pa, be filled with argon gas to 0.8 atmospheric pressure, start high frequency electric source foundry alloy is melted, after alloy melts completely.
4) open argon gas valve, liquid alloy is sprayed into mould.
5) after cooling number minute, open vacuum chamber, take out mould, turn on fastening bolt 5, separately red copper internal mold 3, takes out non-crystaline amorphous metal sample.
Gained sample detects through XRD, does not find crystal phase on example cross section, is amorphous structure completely.
It is cited that content of the present invention is not limited to embodiment, and the conversion of any equivalence that those of ordinary skill in the art take technical solution of the present invention by reading description of the present invention, is claim of the present invention and contains.
Claims (3)
1. one kind is suitable for preparing the mould of large volume block amorphous alloy and composite thereof, comprise red copper internal mold (3), it is characterized in that: the stainless external mold (1) that also comprises upper shed, described internal mold (3) is split type, inner membrance (3) is arranged in external mold (1) and between the bottom of internal mold (3) and external mold (1) spacing, in the cavity between internal mold (3) and external mold (1), is filled with gallium indium alloy (2).
2. the mould that is suitable for preparing large volume block amorphous alloy and composite thereof according to claim 1, is characterized in that: be vertically installed with locating groove (6) in the inner side of external mold (1), the raised line on internal mold (3) is arranged in locating groove (6).
3. the mould that is suitable for preparing large volume block amorphous alloy and composite thereof according to claim 1 and 2, it is characterized in that: internal mold (2) is divided into symmetrical two parts, on die joint, be processed with the seal groove of laying sealing strip (4), symmetrical two parts connect by fastening bolt (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410457214.1A CN104190905B (en) | 2014-09-10 | 2014-09-10 | Be suitable for the mould preparing large volume block amorphous alloy and composite thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410457214.1A CN104190905B (en) | 2014-09-10 | 2014-09-10 | Be suitable for the mould preparing large volume block amorphous alloy and composite thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104190905A true CN104190905A (en) | 2014-12-10 |
| CN104190905B CN104190905B (en) | 2016-04-20 |
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ID=52076352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410457214.1A Expired - Fee Related CN104190905B (en) | 2014-09-10 | 2014-09-10 | Be suitable for the mould preparing large volume block amorphous alloy and composite thereof |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5915453A (en) * | 1998-10-13 | 1999-06-29 | Kennedy Die Casting, Inc. | Multiple part die casting die |
| CN101898236A (en) * | 2009-05-27 | 2010-12-01 | 台湾山叶机车工业股份有限公司 | Universal type die |
| CN202070738U (en) * | 2011-04-26 | 2011-12-14 | 海盐鼎盛机械有限公司 | Centrifugal casting compound die |
| CN103506593A (en) * | 2013-03-29 | 2014-01-15 | 洛阳洛北重工机械有限公司 | Centrifugal casting mold for aluminum bronze porcelain sleeve flange |
| CN103521724A (en) * | 2013-11-01 | 2014-01-22 | 济南东方结晶器有限公司 | Circular external mold |
| CN204075162U (en) * | 2014-09-10 | 2015-01-07 | 西安工业大学 | A kind of mould being suitable for preparation large volume block amorphous alloy and composite thereof |
-
2014
- 2014-09-10 CN CN201410457214.1A patent/CN104190905B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5915453A (en) * | 1998-10-13 | 1999-06-29 | Kennedy Die Casting, Inc. | Multiple part die casting die |
| CN101898236A (en) * | 2009-05-27 | 2010-12-01 | 台湾山叶机车工业股份有限公司 | Universal type die |
| CN202070738U (en) * | 2011-04-26 | 2011-12-14 | 海盐鼎盛机械有限公司 | Centrifugal casting compound die |
| CN103506593A (en) * | 2013-03-29 | 2014-01-15 | 洛阳洛北重工机械有限公司 | Centrifugal casting mold for aluminum bronze porcelain sleeve flange |
| CN103521724A (en) * | 2013-11-01 | 2014-01-22 | 济南东方结晶器有限公司 | Circular external mold |
| CN204075162U (en) * | 2014-09-10 | 2015-01-07 | 西安工业大学 | A kind of mould being suitable for preparation large volume block amorphous alloy and composite thereof |
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| Publication number | Publication date |
|---|---|
| CN104190905B (en) | 2016-04-20 |
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Granted publication date: 20160420 Termination date: 20170910 |