CN204982022U - Production high power capacity contains device that magnesium tombarthite stored up hydrogen alloy - Google Patents
Production high power capacity contains device that magnesium tombarthite stored up hydrogen alloy Download PDFInfo
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- CN204982022U CN204982022U CN201520715444.3U CN201520715444U CN204982022U CN 204982022 U CN204982022 U CN 204982022U CN 201520715444 U CN201520715444 U CN 201520715444U CN 204982022 U CN204982022 U CN 204982022U
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Abstract
The utility model provides a production high power capacity contains device that magnesium tombarthite stored up hydrogen alloy includes secondary feeding box, crucible, crucible runner, cupola drop material, induction coil and crucible axis of rotation. In the induction coil of vacuum induction smelting furnace was arranged in to the crucible, the crucible was filled with the cupola drop material with the clearance in the middle of the induction coil. The secondary feeding box is with the help of the fixed point position of the bolt fastening more than two at the induction coil top, and the fixed position of secondary feeding box is corresponding with the position of crucible runner, and is located the both sides of crucible axis of rotation. The both ends of crucible axis of rotation link to each other with the inside oven of vacuum induction smelting furnace. The utility model discloses a secondary feeding mode, the storage hydrogen alloy composition who makes is stable even, the capacity is high, the life -span is longer, PCT platform pressure is moderate, and secondary feeding easy operation is easily capable, is fit for large -scale production.
Description
Technical field
The utility model relates to a kind of device produced heavy body and contain magnesium rare earth hydrogen storage alloy, secondary is adopted to add the mode of nickel magnesium alloy, obtained even containing magnesium rare earth hydrogen storage alloy stable components, capacity is high, the life-span is longer, PCT plateau pressure is moderate, be applicable to scale operation, specifically belong to alloy material storing hydrogen technical field.
Background technology
Hydrogen storage alloy is as the negative material of nickel metal hydride battery, and the performance of its performance to nickel metal hydride battery plays a decisive role.Business-like AB
5the specific discharge capacity of type rare earth hydrogen storage alloy only has 372mAh/g in theory, and in fact generally only has 300 ~ 350mAh/g, and the space that capacity improves further is very little, is difficult to the requirement that adaptation nickel metal hydride battery further develops.And La-Mg-Ni base hydrogen storage alloy has superstructure, its unit cell volume is greater than AB
5type alloy, can provide more can position between the lattice of housing hydrogen, hydrogen-storage amount is higher than AB
5type alloy.
But, due to containing magnesium elements in La-Mg-Ni base hydrogen storage alloy, need in preparation process to use raw material magnesium, and magnesium fusing point is low, volatile.In the art, traditional charging method is disposable by all raw materials loading smelting furnace crucibles needed for alloy, and does not again add raw material by other means.Because the fusing point of magnesium is low, magnesium is highly volatile in melting heat-processed, and volatile quantity is difficult to control; Meanwhile, because the density of magnesium is low, during melting, swim in molten surface, easily cause alloying constituent uneven.Thus, cause magnesium raw material to lose on the one hand, the alloying constituent after causing melting on the other hand departs from target value, and composition is unstable, skewness, thus affects performance and the stability thereof of alloy.
For above-mentioned situation, the mode of the present invention by adopting secondary charging box to add nickel magnesium alloy, Mg, Co element is added in alloying element, obtain the hydrogen storage alloy that stable components is even, capacity is high, the life-span is longer, PCT plateau pressure is moderate, operation is simple for secondary charging, is conducive to scale operation.
Summary of the invention
The utility model is a kind of to be produced heavy body and comprises secondary charging box (1), crucible (2), crucible cast gate (3), cupola drop material (4), ruhmkorff coil (5) and crucible rotating shaft (6) containing the device of magnesium rare earth hydrogen storage alloy; Crucible (2) is placed in the ruhmkorff coil (5) of vacuum induction melting furnace (8), and crucible (2) is filled with cupola drop material (4) with the gap in the middle of ruhmkorff coil (5).Secondary charging box (1) is bolted to point of fixity (7) position at ruhmkorff coil (5) top by two or more, and the fixed position of secondary charging box (1) is corresponding with the position of crucible cast gate (3), and is positioned at the both sides of crucible rotating shaft (6).The two ends of crucible rotating shaft (6) are connected with the furnace wall, inside of vacuum induction melting furnace (8).
Described secondary charging box (1) is square metal container, and one of them vertical surface and end face are uncovered.
The uncovered vertical surface of described secondary charging box (1) is arranged towards the direction of crucible cast gate (3).
The angle that described crucible (2) tilts with the rotation of crucible rotating shaft (6) can be 0-60 °.
advantage of the present invention has:
When adopting device molten alloy of the present utility model, slag making is few, and alloy yield is high, and the hydrogen storage alloy stable components of preparation is even, and cycle life is more than 300 times, and specific discharge capacity is 0.025 ± 0.01MPa at more than 380mAh/g, PCT plateau pressure.
Add nickel magnesium alloy by secondary charging box secondary, effectively can reduce the volatilization of magnesium, and the loss through volatilization rate that can control containing magnesium in magnesium rare earth hydrogen storage alloy is within 7.0%.Smelting operation is simple and easy to do, is applicable to scale operation.
Accompanying drawing explanation
Fig. 1: produce the device plan structure schematic diagram of heavy body containing magnesium rare earth hydrogen storage alloy
Number in the figure: 1, secondary charging box; 2, crucible; 3, crucible cast gate; 4, crucible cupola drop material; 5, ruhmkorff coil; 6, crucible rotating shaft; 7, point of fixity; 8, vacuum induction melting furnace.
Fig. 2: produce the device main TV structure schematic diagram of heavy body containing magnesium rare earth hydrogen storage alloy
Number in the figure: 1, secondary charging box; 2, crucible; 3, crucible cast gate; 4, crucible cupola drop material; 5, ruhmkorff coil; 6, crucible rotating shaft; 8, vacuum induction melting furnace.
Fig. 3: secondary charging box structural representation
Number in the figure: 1, secondary charging box; 7, point of fixity.
Embodiment
embodiment 1
Production heavy body comprises secondary charging box (1), crucible (2), crucible cast gate (3), cupola drop material (4), ruhmkorff coil (5) and crucible rotating shaft (6) containing the device of magnesium rare earth hydrogen storage alloy.Crucible (2) is placed in the ruhmkorff coil (5) of vacuum induction melting furnace (8), and crucible (2) is filled with cupola drop material (4) with the gap in the middle of ruhmkorff coil (5).Secondary charging box (1) is bolted to the position of the point of fixity (7) at ruhmkorff coil (5) top by two or more, the fixed position of secondary charging box (1) is corresponding with crucible cast gate (3), and is positioned at the both sides of crucible rotating shaft (6).The two ends of crucible rotating shaft (6) are connected with the furnace wall, inside of vacuum induction melting furnace (8).Secondary charging box (1) is square metal container, and one of them vertical surface and end face are uncovered.The uncovered vertical surface of secondary charging box (1) is arranged towards the direction of crucible cast gate (3).Crucible (2) can tilt with the rotation of crucible rotating shaft (6), and the angle tilted is 0-60 °.
embodiment 2
Adopt the device of embodiment 1, produce
containing magnesium rare earth hydrogen storage alloy.Metallic nickel, cobalt metal, metallic aluminium and rare earths material are loaded in the crucible (2) of vacuum induction melting furnace (8), nickel strap to be the massfraction of Ni element be 99% strip metal nickel, the massfraction being Ni element containing magnesium raw material is the nickel magnesium alloy of 80%.Nickel strap is wound on nickel magnesium alloy outside, until nickel magnesium alloy is completely contained in nickel strap, then loaded in secondary charging box (1) by the nickel magnesium alloy wrapped, square secondary charging box (1) is fixed on the opposite of crucible cast gate (3).Then close fire door, bell.Carry out successively vacuumizing, degassed, be filled with rare gas element process, then intensification heating makes raw materialization in crucible (2) to the greatest extent gradually.Now, reduce power and keep 5min to 350Kw, then rotating crucible rotation axis makes crucible tilt to become 60 ° of angles with vertical surface, raw material then in secondary charging box (1) slips in crucible (2), then keep the power 2min of 350Kw, then power is adjusted to zero, then vacuumize, be filled with rare gas element, keep the power of 390Kw to stir 1min again, finally cast under the power of 70Kw.Alloy after casting is ingot shape, gets 6 blocks of ingot shape alloys at random, and every block gets place's sampling analysis composition, and icp analysis the results are shown in Table 1.Alloy after casting is put into annealing furnace and carries out anneal, holding temperature is 980 DEG C, and soaking time is 8h.Alloy after annealing is put into airflow milling and carries out powder process, finally obtain the alloy powder that D50 is 37.5 μm, the specific discharge capacity of the alloy powder obtained is 385mAh/g, and cycle life number of times is 306 times, and PCT plateau pressure is 0.019MPa.
According to the method melting 10 heat alloy of above-described embodiment, a sample analysis ingredient got by the alloy after every heat casting, and icp analysis the results are shown in Table 2.
Claims (4)
1. produce the device of heavy body containing magnesium rare earth hydrogen storage alloy, it is characterized in that: described device comprises secondary charging box (1), crucible (2), crucible cast gate (3), cupola drop material (4), ruhmkorff coil (5) and crucible rotating shaft (6); Crucible (2) is placed in the ruhmkorff coil (5) of vacuum induction melting furnace (8), and crucible (2) is filled with cupola drop material (4) with the gap in the middle of ruhmkorff coil (5); Secondary charging box (1) is bolted to point of fixity (7) position at ruhmkorff coil (5) top by two or more, and the fixed position of secondary charging box (1) is corresponding with the position of crucible cast gate (3), and is positioned at the both sides of crucible rotating shaft (6); The two ends of crucible rotating shaft (6) are connected with the furnace wall, inside of vacuum induction melting furnace (8).
2. a kind of device produced heavy body and contain magnesium rare earth hydrogen storage alloy according to claim 1, is characterized in that: described secondary charging box (1) is square metal container, and one of them vertical surface and end face are uncovered.
3. a kind of heavy body of producing according to claim 1 is containing the device of magnesium rare earth hydrogen storage alloy, it is characterized in that: the uncovered vertical surface of described secondary charging box (1) is arranged towards the direction of crucible cast gate (3).
4. a kind of device produced heavy body and contain magnesium rare earth hydrogen storage alloy according to claim 1, is characterized in that: the angle that described crucible (2) tilts with the rotation of crucible rotating shaft (6) can be 0-60 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520715444.3U CN204982022U (en) | 2015-09-16 | 2015-09-16 | Production high power capacity contains device that magnesium tombarthite stored up hydrogen alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520715444.3U CN204982022U (en) | 2015-09-16 | 2015-09-16 | Production high power capacity contains device that magnesium tombarthite stored up hydrogen alloy |
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| Publication Number | Publication Date |
|---|---|
| CN204982022U true CN204982022U (en) | 2016-01-20 |
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|---|---|---|---|
| CN201520715444.3U Active CN204982022U (en) | 2015-09-16 | 2015-09-16 | Production high power capacity contains device that magnesium tombarthite stored up hydrogen alloy |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220223 Address after: 330096 No. 1117 innovation two road, hi tech Industrial Development Zone, Nanchang, Jiangxi Patentee after: JIANGXI JXTC HAOYUN HIGH-TECH CO.,LTD. Address before: 330046 No. 118 West Beijing Road, Jiangxi, Nanchang Patentee before: JIANGXI RARE EARTH AND RARE METALS TUNGSTEN Group Corp. |
|
| TR01 | Transfer of patent right |