CN204700306U - A kind of novel permanent magnetic product sintering box - Google Patents
A kind of novel permanent magnetic product sintering box Download PDFInfo
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- CN204700306U CN204700306U CN201520423467.7U CN201520423467U CN204700306U CN 204700306 U CN204700306 U CN 204700306U CN 201520423467 U CN201520423467 U CN 201520423467U CN 204700306 U CN204700306 U CN 204700306U
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- box body
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- permanent magnetic
- magnetic product
- box
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Abstract
The utility model discloses a kind of novel permanent magnetic product sintering box, it comprises box body and lid, and box body and lid are made up of mullite graphite, and the inward flange of described box body is provided with bossing, described lid is provided with the groove corresponding to box body bossing, and the side of described box body is provided with passage.The utility model high temperature strength is good, indeformable, can reuse for a long time, and cost is comparatively cheap relative to traditional graphite sintering box.
Description
Technical field
The utility model relates to a kind of novel permanent magnetic product sintering box.
Background technology
Sintering is the critical process manufacturing high-performance neodymium-iron-boron magnet, and it can improve the contact property between powder, improves intensity, makes magnet have high performance microstructure.
The shaping rear green density of magnetic field orientating is about 3.0 ~ 3.3g/cm
3, then the green density after isostatic cool pressing is about 4.8 ~ 5.5g/cm
3, relative to the magnet density (7.5 ~ 7.7g/cm after sintering
3) still lower, in order to prevent pressed compact adhesion when high temperature sintering, distortion, must first pressed compact be contained in the magazine of sintering, then charged magazine be pushed in stove, build bell and seal, then sintering.
Mullite, for a long time for the production of the pottery of high technology performance, has purposes very widely at stove with in, industrial kiln furnitures such as glass, pottery and steel-making.Because it has many good engineering properties: as low at high temperature thermal expansion, chemical stability is good, intensity is high.And with the addition of the mullite-graphite composite material of graphite and antioxidant, not only have above-mentioned superperformance, be more enhanced in anti-thermal shock, the service life of this kind of material can be extended.
Utility model content
For the defect that above-mentioned background technology exists, the utility model provides a kind of novel permanent magnetic product sintering box.
For achieving the above object, the technical solution adopted in the utility model is: it comprises box body and lid, and box body and lid are made up of mullite graphite, and the inward flange of described box body is provided with bossing, described lid is provided with the groove corresponding to box body bossing, and the side of described box body is provided with passage.
Further, the wall thickness of lid and box body is 9 ~ 13mm.
The utility model has following beneficial effect: the utility model high temperature strength is good, indeformable, can reuse for a long time, and cost is comparatively cheap relative to traditional graphite sintering box.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 1, the utility model comprises box body 1 and lid 2, box body 1 and lid 2 are made up of mullite graphite, the inward flange of described box body 1 is provided with bossing 3, described lid 2 is provided with the groove corresponding to box body 1 bossing 3, and when lid combines with box body, lid projection and box body sunk part are combined closely, the side of described box body is provided with passage 4, can be used to the gas of discharging when getting rid of magnet sintering.
Preferably: described lid 2 is 9 ~ 13mm with the wall thickness of box body 1, and such design both ensure that sintering box structural strength, when also making to sinter, heat conduction efficiency improves, and tray interior is temperature-averaging everywhere, improves yield rate and operating efficiency.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (2)
1. a novel permanent magnetic product sintering box, it is characterized in that: comprise box body and lid, box body and lid are made up of mullite graphite, and the inward flange of described box body is provided with bossing, described lid is provided with the groove corresponding to box body bossing, and the side of described box body is provided with passage.
2. the novel permanent magnetic product sintering box according to claims 1, is characterized in that: the wall thickness of described lid and box body is 9 ~ 13mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520423467.7U CN204700306U (en) | 2015-06-18 | 2015-06-18 | A kind of novel permanent magnetic product sintering box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520423467.7U CN204700306U (en) | 2015-06-18 | 2015-06-18 | A kind of novel permanent magnetic product sintering box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204700306U true CN204700306U (en) | 2015-10-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520423467.7U Active CN204700306U (en) | 2015-06-18 | 2015-06-18 | A kind of novel permanent magnetic product sintering box |
Country Status (1)
| Country | Link |
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| CN (1) | CN204700306U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106403606A (en) * | 2016-11-16 | 2017-02-15 | 航天特种材料及工艺技术研究所 | Device for sintering high-temperature-resistant material and application of device |
-
2015
- 2015-06-18 CN CN201520423467.7U patent/CN204700306U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106403606A (en) * | 2016-11-16 | 2017-02-15 | 航天特种材料及工艺技术研究所 | Device for sintering high-temperature-resistant material and application of device |
| CN106403606B (en) * | 2016-11-16 | 2018-09-25 | 航天特种材料及工艺技术研究所 | A kind of device and its application for sintered high-temperature material |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |