CN104289710B - A kind of graphite sintering box with aerofluxus and sealing function - Google Patents
A kind of graphite sintering box with aerofluxus and sealing function Download PDFInfo
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- CN104289710B CN104289710B CN201410516646.5A CN201410516646A CN104289710B CN 104289710 B CN104289710 B CN 104289710B CN 201410516646 A CN201410516646 A CN 201410516646A CN 104289710 B CN104289710 B CN 104289710B
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Abstract
The invention discloses a kind of graphite sintering box with aerofluxus and sealing function, including box body and lid, the bottom of described lid has coupling and seals the lobe snapping in described box body box mouth, one sidewall of described box body is provided with a through hole, one graphite bolt is installed on described through hole, described graphite bolt penetrates in through hole from outside, and the shaft external diameter of graphite bolt is less than described through hole external diameter；The front end of described graphite bolt is provided with the external diameter graphite nut more than through hole external diameter；The rear end of described graphite bolt has the external diameter gland more than through hole external diameter, and the front side of this gland is provided with to mate and seals the circular chock engaging described through hole.The present invention can smooth aerofluxus before intensification and in heating process, there is again good sealing property, cost-effective, reduce hall space and take, be worthy to be popularized.
Description
Technical field
The present invention relates to a kind of graphite sintering box with aerofluxus and sealing function.
Background technology
At present, the production of sintered Nd-Fe-B permanent magnetic material generally uses can or graphite.Can has the shortcomings such as yielding, sealing property is bad, need to use the sintering furnace of band glove box when producing High-performance magnetic steel, sintering furnace cost with glove box about exceeds more than 200,000 yuan than the sintering furnace without glove box of same specification, and takies hall space more.Graphite has good seal performance, but exhaust problem before intensification and in heating process, needs to extend evacuation time, and properties of product is produced harmful effect, traditional way is to use the sintering furnace of band glove box, can avoid graphite problem of exhaust problem before intensification and in heating process.
But the sintering furnace cost of band glove box is the highest, and volume is big, occupies substantial amounts of hall space, and sealing property is not sufficiently good.If graphite can smooth aerofluxus before intensification and in heating process, there is again good sealing property, thus can avoid using the sintering furnace of expensive band glove box, cost-effective, reduce hall space and take, there is great promotional value.
Summary of the invention
The present invention is to solve the above-mentioned deficiency of prior art, it is proposed that a kind of graphite sintering box with aerofluxus and sealing function.
In order to solve above-mentioned technical problem, the present invention is by the following technical solutions: a kind of graphite sintering box with aerofluxus and sealing function, including box body and lid, the bottom of described lid has coupling and seals the lobe snapping in described box body box mouth, one sidewall of described box body is provided with a through hole, being provided with a graphite bolt on described through hole, described graphite bolt penetrates in through hole from outside, and the shaft external diameter of graphite bolt is less than described through hole external diameter；The front end of described graphite bolt is provided with the external diameter graphite nut more than through hole external diameter；The rear end of described graphite bolt has the external diameter gland more than through hole external diameter, and the front side of this gland is provided with to mate and seals the circular chock engaging described through hole.
Preferably, described circular chock coordinates with described via clearance.
Preferably, the bottom of described box body is provided with the jut sealing stacking between box body, and described jut is identical with described lobe size shape.
Preferably, the wall thickness of described box body is 10mm, and the thickness of described circular chock is also 10mm.
Compared with prior art, the present invention proposes to have employed new structure, by arranging through hole and graphite bolt dexterously in the side of box body, perfectly solve before heating up and the problem of exhaust problem in heating process, wherein, the circular chock of graphite bolt can be blocked through hole before box body enters sintering furnace and ensure the sealing of box body, after entering body of heater, as long as body of heater is twitched into vacuum, make box body inside and outside generation negative pressure, circular chock is extracted through hole automatically, and the shaft external diameter of graphite bolt is less than the external diameter of through hole, as long as the gas in box body can get rid of box body；Graphite can not only smooth aerofluxus before intensification and in heating process, there is again good sealing property, thus can avoid using the sintering furnace of expensive band glove box, cost-effective, minimizing hall space takies, simple in construction, practical, there is great promotional value.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is graphite bolt and the sealing state schematic diagram of through hole of the present invention；
Fig. 3 is graphite bolt and the exhaust condition schematic diagram of through hole of the present invention.
Detailed description of the invention
With embodiment, invention is described in detail below in conjunction with the accompanying drawings.
As shown in Figure 1,2 and 3, the graphite sintering box with aerofluxus and sealing function that the present invention proposes, including box body 1 and lid 2, the bottom of lid 2 has coupling and seals the lobe 21 snapping in described box body box mouth, one sidewall of box body 1 is provided with a through hole 12, being provided with a graphite bolt 3 on through hole, graphite bolt 3 penetrates in through hole from outside, and the shaft external diameter of graphite bolt is less than through hole external diameter；The front end of graphite bolt is provided with the external diameter graphite nut 4 more than through hole external diameter；The rear end of graphite bolt has the external diameter gland 32 more than through hole external diameter, and the front side of this gland 32 is provided with to mate and seals the circular chock 31 engaging described through hole 12.Circular chock 31 and through hole 12 matched in clearance.The bottom of box body 1 is provided with the jut 11 sealing stacking between box body, and jut 11 is identical with lobe 21 size shape, and between box body and box body during stacking, the bottom of box body is relative to the effect of lid.The wall thickness of box body is 10mm, and the thickness of circular chock is also 10mm.
In the present invention, the shaft of graphite bolt 3 has enough length, and after loading onto graphite nut 4, graphite bolt 3 still has enough mobile spaces；The head of graphite bolt 3 is cylindrical circular chock 31 and gland 32；Gland 32 is more bigger than through hole 12；And circle chock 31 and through hole 12 matched in clearance, so when circular chock 31 is positioned at through hole 12 inside, as in figure 2 it is shown, graphite bolt 3 has sealing function to graphite；When circular chock 31 is positioned at through hole 12 outside, due to action of gravity, graphite bolt 3 run-off the straight, as it is shown on figure 3, now, graphite has degassing function；Graphite nut 4 is more bigger than through hole 12, makes graphite bolt 3 will not leave graphite box body 1.
During use, entering stokehold at graphite, the through hole 12 that the circular chock 31 of graphite bolt is tucked into box body 1 is internal, is sealed by through hole 12, and is covered by box body 1 with lid 2, makes graphite have good sealing property.At this point it is possible to make neodymium iron boron green compact not with air contact, the oxidation of green compact can be avoided.
Furnace rear is entered at graphite, to body of heater evacuation, when evacuation, the air pressure within graphite is more than outside air pressure, and box body is inside and outside produces an air negative pressure, now graphite bolt 3 will shift to the outside of box body 1, circular chock 31 is pulled out, and the shaft external diameter of graphite bolt 3 is less than through hole external diameter, and such graphite bolt 3 is under self gravitation effect, run-off the straight, thus the gas in graphite can be discharged smoothly.
Above-described embodiment only have expressed one embodiment of the present invention, and it describes more concrete and detailed, but can not be therefore understands that be the restriction to the scope of the claims of the present invention.It should be pointed out that, for the person of ordinary skill of the art, without departing from the inventive concept of the premise, it is also possible to make some deformation and improvement, these broadly fall into protection scope of the present invention.Therefore, patent of the present invention and protection domain should be as the criterion with appended claims.
Claims (4)
1. a graphite sintering box with aerofluxus and sealing function, including box body (1) and lid (2), the bottom of described lid (2) has coupling and seals the lobe (21) snapping in described box body box mouth, it is characterized in that: a sidewall of described box body (1) is provided with a through hole (12), one graphite bolt (3) is installed on described through hole, described graphite bolt (3) penetrates in through hole from outside, and the shaft external diameter of graphite bolt is less than described through hole external diameter；The front end of described graphite bolt is provided with the external diameter graphite nut (4) more than through hole external diameter；The rear end of described graphite bolt has the external diameter gland (32) more than through hole external diameter, and the front side of this gland (32) is provided with to mate and seals the circular chock (31) engaging described through hole (12).
There is the graphite sintering box of aerofluxus and sealing function the most as claimed in claim 1, it is characterised in that: described circular chock (31) and described through hole (12) matched in clearance.
There is the graphite sintering box of aerofluxus and sealing function the most as claimed in claim 1, it is characterized in that: the bottom of described box body (1) is provided with the jut (11) sealing stacking between box body, described jut (11) is identical with described lobe (21) size shape.
There is the graphite sintering box of aerofluxus and sealing function the most as claimed in claim 1, it is characterised in that: the wall thickness of described box body is 8-15mm, and the thickness of described circular chock is identical with the wall thickness of described box body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410516646.5A CN104289710B (en) | 2014-09-30 | 2014-09-30 | A kind of graphite sintering box with aerofluxus and sealing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410516646.5A CN104289710B (en) | 2014-09-30 | 2014-09-30 | A kind of graphite sintering box with aerofluxus and sealing function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104289710A CN104289710A (en) | 2015-01-21 |
| CN104289710B true CN104289710B (en) | 2016-08-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410516646.5A Expired - Fee Related CN104289710B (en) | 2014-09-30 | 2014-09-30 | A kind of graphite sintering box with aerofluxus and sealing function |
Country Status (1)
| Country | Link |
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| CN (1) | CN104289710B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104959607B (en) * | 2015-06-30 | 2017-05-17 | 成都易态科技有限公司 | Exhausting and sintering integration method and tool for implementing same |
| CN105906330B (en) * | 2016-04-27 | 2018-08-31 | 中铝广西有色金源稀土有限公司 | A kind of neodymium iron boron superfine powder sintering magazine and preparation method thereof |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3781072B2 (en) * | 1997-06-05 | 2006-05-31 | 石川島播磨重工業株式会社 | Sintering equipment |
| JP2001355005A (en) * | 2000-06-13 | 2001-12-25 | Daido Steel Co Ltd | Manufacturing method of composite member |
| CN201266541Y (en) * | 2008-07-29 | 2009-07-01 | 宁波科宁达工业有限公司 | Sintering box for permanent magnet product |
| CN102039407B (en) * | 2009-10-14 | 2014-09-17 | 三环瓦克华（北京）磁性器件有限公司 | Method for decreasing harmful gases in process of sintering sintered neodymium iron boron (NdFeB) magnet |
| CN202123246U (en) * | 2011-05-16 | 2012-01-25 | 张作州 | Sintering boat made from permanent magnet material |
| CN202126926U (en) * | 2011-06-30 | 2012-01-25 | 安徽大地熊新材料股份有限公司 | Sintering device used for protecting neodymium iron boron |
| CN202763041U (en) * | 2012-10-20 | 2013-03-06 | 宁波合盛磁业有限公司 | Material box for neodymium-iron-boron magnet sintering |
| CN202845783U (en) * | 2012-11-09 | 2013-04-03 | 安徽大地熊新材料股份有限公司 | Neodymium iron boron magnet firing device |
| CN203197246U (en) * | 2012-12-29 | 2013-09-18 | 赣州鑫磊稀土新材料有限公司 | Sintered NdFeB tile-shaped mould |
-
2014
- 2014-09-30 CN CN201410516646.5A patent/CN104289710B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN104289710A (en) | 2015-01-21 |
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Granted publication date: 20160831 Termination date: 20180930 |