CN218566180U - Inside and outside type double-layer neodymium iron boron graphite box - Google Patents
Inside and outside type double-layer neodymium iron boron graphite box Download PDFInfo
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- CN218566180U CN218566180U CN202223014138.6U CN202223014138U CN218566180U CN 218566180 U CN218566180 U CN 218566180U CN 202223014138 U CN202223014138 U CN 202223014138U CN 218566180 U CN218566180 U CN 218566180U
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Abstract
The utility model belongs to the technical field of neodymium iron boron sintering equipment, in particular to an internal and external double-layer neodymium iron boron stone ink box, which comprises an outer box and an inner box which are nested; at least one side surface of the inner box is provided with a long hole type ventilation hole, the top surface of the inner box is provided with a first opening, and a cover plate used for closing the first opening is arranged on the first opening; the top surface of the outer box has a second opening, and the inner box is inserted into the outer box from the second opening to form an enclosed structure. The utility model provides a when inside and outside formula double-deck neodymium iron boron stone ink horn has the leakproofness, have and can realize that the quick cooling of ectonexine magnet and the good characteristics of uniformity.
Description
Technical Field
The utility model belongs to the technical field of neodymium iron boron sintering equipment, in particular to double-deck neodymium iron boron stone ink horn of interior outward type.
Background
The graphite boxes commonly used for sintering the neodymium iron boron at present are sealed, and the sintering and aging requirements of the conventional neodymium iron boron are basically met. With the development of the neodymium iron boron technology, particularly high-performance sintered neodymium iron boron, the cooling quality requirement of the time-effect process of the sintered magnet in the furnace is very high, namely, the sealing property is required, meanwhile, the cooling speed is required to be high, the cooling consistency of the inner layer magnet and the outer layer magnet of the magnet in the furnace is good, and the existing stone ink box is difficult to meet the requirements of the two points at the same time. Therefore, an ink box for neodymium iron boron, which meets the above two requirements, is needed.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model aims to solve the technical problems that: the graphite box for the neodymium iron boron sintering has the advantages of sealing performance, capability of realizing quick cooling of the inner-layer magnet and the outer-layer magnet and good consistency.
In order to solve the technical problem, the utility model discloses a technical scheme be: the inner and outer type double-layer neodymium iron boron stone ink box comprises an outer box and an inner box which are nested;
at least one side surface of the inner box is provided with a long hole type ventilation hole, the top surface of the inner box is provided with a first opening, and a cover plate used for closing the first opening is arranged on the first opening;
the top surface of the outer box has a second opening, and the inner box is inserted into the outer box from the second opening to form an enclosed structure.
Wherein each side of the inner case has the long hole type ventilation hole.
The number of the long hole type vent holes is at least two, and the long hole type vent holes are distributed at intervals along the height direction of the side face of the inner box.
The top of the inner box is provided with a convex edge extending outwards along the horizontal direction, and the bottom surface of the convex edge is abutted with the top surface of the outer box.
Wherein, the bottom surface of the inner box is provided with a support leg.
The inner side face of the inner box is a first step face, the upper side width of the first step face is smaller than the lower side width of the first step face, and the bottom faces of the support legs abut against the first step faces of the lower-layer inner boxes which are longitudinally adjacent.
At least two oppositely arranged side surfaces of the outer box are second step surfaces, and the upper side width of each second step surface is larger than the lower side width of each second step surface.
Wherein, the cover plate is provided with a handle.
The beneficial effects of the utility model reside in that: the utility model provides a double-deck neodymium iron boron graphite box of inside and outside formula can keep relative leakproofness at the sintering process to avoid the oxidation, when sintering ageing, the cooling effect is good simultaneously, and the inside and outside cooling uniformity of multilayer blank product in the effective assurance stove is good.
Drawings
Fig. 1 is an exploded view of an internal and external double-layered neodymium-iron-boron-stone ink cartridge according to an embodiment of the present invention;
fig. 2 is a schematic structural view of an internal and external double-layered neodymium iron boron graphite box in an assembled state according to an embodiment of the present invention;
fig. 3 is an assembly diagram of the present invention in an implementation scenario.
Description of the reference symbols: 1. a cover plate; 2. an inner case; 3. an outer box; 4. a convex edge; 5. a leg; 6. a long hole-shaped vent hole; 7. a first step surface; 8. a second step surface; 9. a handle; 10. a first opening; 11. a second opening.
Detailed Description
In order to explain the technical content, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Referring to fig. 1 to 3, the internal and external double-layer neodymium iron boron stone ink box comprises an outer box 3 and an inner box 2 which are nested; at least one side surface of the inner box 2 is provided with a long hole type ventilation hole 6, the top surface of the inner box 2 is provided with a first opening 10, and the first opening 10 is provided with a cover plate 1 for closing the first opening 10; the top surface of outer box 3 has second opening 11, inside and outside formula double-deck neodymium iron boron graphite box passes through interior box 2 is followed insert in the second opening 11 in order to form enclosed construction in outer box 3.
Specifically, the inner case 2 is inserted into the outer case 3 through the second opening 11 at the top of the outer case 3 to achieve the integral sealing of the cartridge. In specific embodiment, interior box 2 has the inner chamber that holds the neodymium iron boron unburned bricks, after interior box 2 is as required the good neodymium iron boron unburned bricks of packing, through covering apron 1 in order to seal its first opening 10 to in 2 inserting outer box 3 of box in will, with forming relative confined structure, consequently can effectively avoid the neodymium iron boron unburned bricks to take place oxidation phenomenon at sintering charging in-process.
After the sintering is accomplished, can take out the neodymium iron boron blank and take out the ageing from outer box 3 together with interior box 2, because at this moment have slot hole type ventilation hole 6 on at least one side of interior box 2, therefore the quick cooling of neodymium iron boron blank is realized to this slot hole type ventilation hole 6 of accessible.
Of course, the sintering and aging processes are generally performed simultaneously for a plurality of groups of neodymium iron boron green bodies, so that the inner box 2 taken out of the outer box 3 needs to be subjected to box swinging after the sintering process, and the box swinging is preferably stacked in a laminated manner. Wherein, the stacked stack should ensure that a certain gap is formed between two horizontally adjacent or longitudinally adjacent inner boxes 2, and the gap can be realized by artificially placing at intervals or limiting the adjacent inner boxes 2 to be attached too close by the structure of the inner boxes 2. Carry out the ageing behind the pendulum box, cool down through the forced air cooling after the ageing, owing to have slot hole type ventilation hole 6 on at least one side of interior box 2 this moment, consequently the interior each layer of stove can be guaranteed in order to guarantee 2 air permeability of box in single in this slot hole type ventilation hole 6 to and the cooling uniformity of interior neodymium iron boron blank of box 2 in inboard and the outside.
Preferably, each side surface of the inner case 2 has the long hole type ventilation hole 6. More preferably, the long hole type ventilation holes 6 are provided in at least two, and the long hole type ventilation holes 6 are distributed at intervals in the height direction of the side surface of the inner case 2.
In one embodiment, the top of the inner case 2 has a ledge 4 extending horizontally outward, and the bottom surface of the ledge 4 abuts the top surface of the outer case 3. Preferably, the ledge 4 protrudes from the side of the outer casing 3. Through this kind of setting with form the step face between the side of interior box 2 and outer box 3 and be convenient for operating personnel to utilize this step face to take interior box 2 out from outer box 3, this protruding edge 4 can guarantee that the adjacent interior box 2 of level or outer box 3 keep a certain interval in the stacking process simultaneously to guarantee the air permeability or the heat conductivity between the stone ink horn.
In one embodiment, the bottom surface of the inner box 2 has feet 5. Preferably, the inner side surface of the inner box 2 is a first step surface 7, the upper width of the first step surface 7 is smaller than the lower width thereof, and the bottom surface of the leg 5 abuts against the first step surface 7 of the longitudinally adjacent lower inner box. At this time, the first step surface 7 is not only used for placing the cover plate 1, but also the legs 5 can stably abut against the first step surface 7 during aging (when the cover plate 1 is removed), so that the graphite boxes can be stacked in the longitudinal direction.
Of course, in order to further improve the air flow communication between the graphite boxes when stacked, the bottom surface of the inner box 2 is higher than the top surface of the longitudinally adjacent inner box 2 when the legs 5 abut on the first step surface 7.
In one embodiment, at least two opposite side surfaces of the outer case 3 are second step surfaces 8, and the upper width of the second step surfaces 8 is greater than the lower width thereof. That is, this arrangement facilitates the operator to take out the outer box 3 from the oven by using the second step surface 8.
Preferably, the cover plate 1 has a handle 9 thereon.
Example 1
Referring to fig. 1 to 3, the internal and external double-layer neodymium iron boron stone ink box comprises an outer box 3 and an inner box 2 which are nested and are substantially cuboid;
each side surface of the inner box 2 is provided with a long hole type ventilation hole 6, the top surface of the inner box 2 is provided with a first opening 10, and the first opening 10 is provided with a cover plate 1 for closing the first opening 10;
the top surface of the outer case 3 has a second opening 11, and the inner case 2 is inserted into the outer case 3 from the second opening 11 to form an enclosed structure;
the number of the long hole type vent holes 6 is at least two, and the long hole type vent holes 6 are distributed at intervals along the height direction of the side surface of the inner box 2;
the top of the inner box 2 is provided with a convex edge 4 extending outwards along the horizontal direction, and the bottom surface of the convex edge 4 is abutted with the top surface of the outer box 3;
the bottom surface of the inner box 2 is provided with a support leg 5;
the inner side surface of the inner box 2 is a first step surface 7, the upper width of the first step surface 7 is smaller than the lower width of the first step surface, and the bottom surface of each support leg 5 abuts against the first step surface 7 of the longitudinally adjacent lower-layer inner box;
at least two oppositely arranged side surfaces of the outer box 3 are second step surfaces 8, and the upper width of each second step surface 8 is larger than the lower width thereof;
the cover plate 1 is provided with a handle 9.
Specifically, neodymium iron boron unburned bricks are placed in the containing cavity of the inner box 2 before the sintering process, the cover plate 1 is placed on the first step surface 7 to seal the first opening 10 of the inner box 2, meanwhile, the inner box 2 is placed into the outer box 3 from the second opening 11, the bottom surface of the convex edge 4 abuts against the top surface of the outer box 3, and at the moment, the graphite box is in a relatively closed state, namely, the installation of the stone ink box is completed.
Carry out heap pendulum box to the graphite box before the sintering, be about to put into the graphite box in vertical adjacent lower floor's stone ink horn, the bottom surface butt of outer box 3 is on the surface of lower floor's stone ink horn inlayer this moment. Horizontally adjacent graphite boxes abut against each other by means of the raised edges 4 to form the necessary air channels between them.
After sintering, the inner case 2 is taken out of the outer case 3, the cover plate 1 is taken down, and then the inner case 2 is stacked and arranged in the longitudinally adjacent inner case 2 at the lower layer, namely the support legs 5 abut against the first step surface 7 of the inner case 2 at the lower layer. Horizontally adjacent inner boxes 2 abut each other by means of ledges 4 to form the necessary air ducts between them.
In the aging process, the first opening 10 of the inner box 2 is open, the long hole type vent holes 6 are formed in the surface of the inner box 2, and necessary air channels exist between the inner box 2, so that the neodymium iron boron green bodies in the single inner box 2 and the neodymium iron boron green bodies in the inner box 2 in each layer, the inner side and the outer side can be effectively ensured to be rapidly cooled, and the cooling consistency of the neodymium iron boron green bodies and the neodymium iron boron green bodies is improved.
The experiment verifies and measures that when the stone ink box provided by the utility model is aged, the temperature difference between the neodymium iron boron blank in the inner box at the middle part of the stone ink box and the neodymium iron boron blank in the outermost inner box is less than 50 ℃; in the conventional sealed graphite box, the temperature difference between the two can reach 200-350 ℃. Adopt the utility model provides a neodymium iron boron blank of graphite box after to the sintering carries out the ageing, and the magnetic property uniformity of its magnet is high, and especially intrinsic coercive force uniformity is good, and the deviation is less than 0.3KOe.
The above mentioned is only the embodiment of the present invention, and not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings, or the direct or indirect application in the related technical field, are included in the patent protection scope of the present invention.
Claims (8)
1. The inside and outside type double-layer neodymium iron boron graphite box is characterized by comprising an outer box and an inner box which are nested;
at least one side surface of the inner box is provided with a long hole type ventilation hole, the top surface of the inner box is provided with a first opening, and a cover plate used for closing the first opening is arranged on the first opening;
the top surface of the outer box has a second opening, and the inner box is inserted into the outer box from the second opening to form an enclosed structure.
2. The inside-outside double-layer neodymium-iron-boron graphite box according to claim 1, wherein each side face of the inner box is provided with the long hole type ventilation hole.
3. The inside and outside double-layer neodymium iron boron graphite box of claim 2, wherein the number of the long hole type vent holes is at least two, and the long hole type vent holes are distributed at intervals along the height direction of the side face of the inside box.
4. The inside-outside type double-layer neodymium-iron-boron graphite box according to claim 1, wherein the top of the inside box is provided with a convex edge extending outwards along the horizontal direction, and the bottom surface of the convex edge is abutted with the top surface of the outside box.
5. The inside-outside double-layer neodymium-iron-boron graphite box according to claim 1, wherein the bottom surface of the inside box is provided with a support leg.
6. The inside and outside double-layer neodymium-iron-boron graphite box according to claim 5, wherein the inner side surface of the inner box is a first step surface, the upper width of the first step surface is smaller than the lower width of the first step surface, and the bottom surface of each support leg abuts against the first step surface of the longitudinally adjacent lower-layer inner box.
7. The inside-outside double-layer neodymium-iron-boron graphite box according to claim 1, wherein at least two oppositely arranged side faces of the outer box are second step faces, and the width of the upper side of each second step face is larger than that of the lower side of each second step face.
8. The inside-outside double-layer neodymium-iron-boron graphite box according to claim 1, wherein the cover plate is provided with a handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223014138.6U CN218566180U (en) | 2022-11-11 | 2022-11-11 | Inside and outside type double-layer neodymium iron boron graphite box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223014138.6U CN218566180U (en) | 2022-11-11 | 2022-11-11 | Inside and outside type double-layer neodymium iron boron graphite box |
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| Publication Number | Publication Date |
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| CN218566180U true CN218566180U (en) | 2023-03-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223014138.6U Active CN218566180U (en) | 2022-11-11 | 2022-11-11 | Inside and outside type double-layer neodymium iron boron graphite box |
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| Country | Link |
|---|---|
| CN (1) | CN218566180U (en) |
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- 2022-11-11 CN CN202223014138.6U patent/CN218566180U/en active Active
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