CN201279588Y - Rare earth permanent magnet material rectangle die - Google Patents
Rare earth permanent magnet material rectangle die Download PDFInfo
- Publication number
- CN201279588Y CN201279588Y CNU2008202220858U CN200820222085U CN201279588Y CN 201279588 Y CN201279588 Y CN 201279588Y CN U2008202220858 U CNU2008202220858 U CN U2008202220858U CN 200820222085 U CN200820222085 U CN 200820222085U CN 201279588 Y CN201279588 Y CN 201279588Y
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- cover plate
- upper cover
- earth permanent
- mould
- lower shoe
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Abstract
The utility model discloses a rare-earth permanent-magnetic material rectangular mould, which consists of an upper cover plate and a lower soleplate, which are pressed by an upper and a lower orientation pressure machines, and a front and a rear side plates which are clamped by a clamp, and a left and a right pressing heads which are pressed by two oil cylinders, wherein, the upper cover plate, the lower soleplate, the front and the rear side plates and the left and the right pressing heads form a rectangular die cavity; the inner side middle part of the upper cover plate and the inner side middle part of the lower soleplate are respectively provided with a forming lug boss with the top part being provided with a horizontal forming surface, and the front and rear side plates are arranged between the upper cover plate and the lower soleplate and are respectively arranged on the front side and the rear side of the forming lug boss. The mould has simple and reasonable structure; the roughcast is formed at one time, and different parts of the mould are correctly positioned, and the quality of the formed product is high, and the forming of the rectangular roughcast of the rare-earth permanent-magnetic material can be simply and conveniently realized, and the waste of the raw material can be greatly reduced, and the cost can be saved.
Description
Technical field
The utility model relates to a kind of mould, especially relates to a kind of rare earth permanent-magnetic material rectangular mould.
Background technology
The sintered rare-earth permanent magnetic blank is roughly the same with the structure and the operation principle of mould, below is that example describes with the mould of NdFeB material.Because NdFeB material generally all need be finished orientation simultaneously in the formed product process, thereby at present at the employed mould of this material, adopting left and right sides cylinder to carry out also installing the orientation press up and down additional and suppressing mostly at the use mould to when pressing.In addition, rare earth permanent-magnetic material is after be press formed into sintering and come out of the stove, the factor with aspect such as Distribution of Magnetic Field because its internal pressure distributes, and institute's molded blank all directions all can have contraction in various degree.Generally speaking, the shrinkage ratio of its left and right sides pressing direction is 1.17-1.20 before and after the blank moulding; The shrinkage ratio of differently-oriented directivity is 1.30-1.41 up and down, and this direction influenced by flouring technology bigger; And the mould direction is the shrinkage ratio of blank fore-and-aft direction is 1.21-1.23.Therefore, during the mould design, must consider above-mentioned factor, its die size=(needing size+finish allowance) * constriction coefficient.General mould is because the clamping of front and back or the clamping between upper cover plate and the lower shoe, make left and right sides pressure head be subjected to bigger thrust, cause easily between pressure head and front and back side plate, the upper and lower bottom plate bigger frictional resistance is arranged, cause the bad magnetic property that influences of orientation of magnet, simultaneously because the influence of frictional resistance, can cause that bigger stress is arranged between the magnet each several part, cause the net shape distortion of magnet behind the sintering serious, the dimensions that substantial deviation is estimated.
The utility model content
Technical problem to be solved in the utility model is at above-mentioned deficiency of the prior art, a kind of rare earth permanent-magnetic material rectangular mould is provided, it is simple and reasonable, blank one-shot forming and the accurate positioning of mould each several part, institute's shaped article quality height, moulding that can simple and convenient realization rare earth permanent-magnetic material rectangle blank and can reduce waste of raw materials significantly, save cost.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of rare earth permanent-magnetic material rectangular mould, it is characterized in that: by by be orientated up and down former and later two side plates that upper cover plate that press suppresses and lower shoe, employing anchor clamps are fixedly clamped and respectively by about two oil cylinders carry out six parts of two pressure heads about pressing are formed, described six parts surround a rectangle die cavity; The moulding boss that it is the horizontal form face that the middle inside correspondence of the middle inside of described upper cover plate and lower shoe is respectively arranged with a top, former and later two side plates are all between upper cover plate and lower shoe and lay respectively at the both sides, front and back of described moulding boss.
Described upper cover plate, lower shoe and about two pressure heads make by nonmagnetic steel or bakelite.
The utility model compared with prior art has the following advantages, and 1, simple and reasonable and processing and fabricating is convenient; 2, the middle inside correspondence of the middle inside of its upper cover plate and the lower shoe moulding boss that to be respectively arranged with a top be horizontal plane, and former and later two side plates are all between upper cover plate and lower shoe and lay respectively at the both sides, front and back of described moulding boss, thereby, can guarantee effectively that accurately locate on mould each several part ground in the forming process; Rare earth permanent-magnetic material is packed into die cavity and cover upper cover plate after, to carry out clamping by anchor clamps before and after the utility model and be installed on the automatic pressing under magnetic field machine, be installed on the automatic pressing under magnetic field machine, afterwards by be orientated up and down press and about two oil cylinders respectively from up and down and about 4 directions respectively mould is suppressed thereby institute's shaped article quality height; 3, product forming technique is easy, and the blank one-shot forming has reduced the waste that former cause block blank line cutting causes, thereby can reduce raw-material waste significantly; Simultaneously, saved the following process program, its later stage only need be carried out some simple mill processing processing, thereby greatly provides cost savings.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Description of drawings
Fig. 1 is an external structure schematic diagram of the present utility model.
Fig. 2 is the A-A cross-sectional schematic of Fig. 1.
Description of reference numerals:
1-upper cover plate; 2-lower shoe; 3-side plate;
4-pressure head.
The specific embodiment
As shown in Figure 1 and Figure 2, the utility model by by be orientated upper cover plate 1 and lower shoe 2 that press suppresses up and down, adopt former and later two side plates 3 that anchor clamps are fixedly clamped and respectively by about two oil cylinders carry out 4 six parts of two pressure heads about pressing are formed, described six parts surround a rectangle die cavity.Wherein, the moulding boss that it is the horizontal form face that the middle inside correspondence of the middle inside of described upper cover plate 1 and lower shoe 2 is respectively arranged with a top, former and later two side plates 3 are all between upper cover plate 1 and lower shoe 2 and lay respectively at the both sides, front and back of described moulding boss.In the present embodiment, upper cover plate 1, lower shoe 2 and about two pressure heads 4 make by nonmagnetic steel.In the practice, upper cover plate 1, lower shoe 2 and about two pressure heads 4 also can make by bakelite.
The course of work of the present utility model is: at first, with the rare earth permanent-magnetic material fine powder pack into by lower shoe 2, former and later two side plates 3 and about two rectangle die cavities that pressure head 4 surrounds, cover upper cover plate 1 again; Afterwards, with carrying out clamping by anchor clamps before and after the utility model and being installed on the automatic pressing under magnetic field machine, finish the one-shot forming of the rare earth permanent-magnetic material rectangle blank that is contained in its die cavity inside.In the forming process of product, by be orientated up and down press and about two oil cylinders respectively from up and down and about 4 directions respectively mould is suppressed.
The above; it only is preferred embodiment of the present utility model; be not that the utility model is imposed any restrictions; everyly any simple modification that above embodiment did, change and equivalent structure are changed, all still belong in the protection domain of technical solutions of the utility model according to the utility model technical spirit.
Claims (2)
1. rare earth permanent-magnetic material rectangular mould, it is characterized in that: by by be orientated upper cover plate (1) and lower shoe (2) that press suppresses up and down, adopt former and later two side plates (3) that anchor clamps are fixedly clamped and respectively by about two oil cylinders carry out (4) six parts of two pressure heads about pressing are formed, described six parts surround a rectangle die cavity; The moulding boss that it is the horizontal form face that the middle inside correspondence of the middle inside of described upper cover plate (1) and lower shoe (2) is respectively arranged with a top, former and later two side plates (3) all are positioned between upper cover plate (1) and the lower shoe (2) and lay respectively at the both sides, front and back of described moulding boss.
2. according to the described a kind of rare earth permanent-magnetic material rectangular mould of claim 1, it is characterized in that: described upper cover plate (1), lower shoe (2) and about two pressure heads (4) make by nonmagnetic steel or bakelite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202220858U CN201279588Y (en) | 2008-10-27 | 2008-10-27 | Rare earth permanent magnet material rectangle die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202220858U CN201279588Y (en) | 2008-10-27 | 2008-10-27 | Rare earth permanent magnet material rectangle die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201279588Y true CN201279588Y (en) | 2009-07-29 |
Family
ID=40926476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202220858U Expired - Fee Related CN201279588Y (en) | 2008-10-27 | 2008-10-27 | Rare earth permanent magnet material rectangle die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201279588Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102029387A (en) * | 2010-09-21 | 2011-04-27 | 重庆文理学院 | Mold and process for sintering bar-shaped sample in high-temperature vacuum protective atmosphere |
| CN105206416A (en) * | 2015-10-28 | 2015-12-30 | 廊坊京磁精密材料有限公司 | Orientation press method of neodymium-iron-boron magnet |
| CN107310011A (en) * | 2017-08-17 | 2017-11-03 | 常德碳汇工艺品科技有限公司 | A kind of isotropism wood particle panels |
| CN108231311A (en) * | 2016-12-21 | 2018-06-29 | 中国科学院宁波材料技术与工程研究所 | Prepare device, neodymium iron boron magnetic body of neodymium iron boron magnetic body and preparation method thereof |
| CN108247045A (en) * | 2018-01-31 | 2018-07-06 | 金堆城钼业股份有限公司 | A kind of device and method that super large-scale molybdenum product is prepared using isostatic cool pressing mode |
-
2008
- 2008-10-27 CN CNU2008202220858U patent/CN201279588Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102029387A (en) * | 2010-09-21 | 2011-04-27 | 重庆文理学院 | Mold and process for sintering bar-shaped sample in high-temperature vacuum protective atmosphere |
| CN105206416A (en) * | 2015-10-28 | 2015-12-30 | 廊坊京磁精密材料有限公司 | Orientation press method of neodymium-iron-boron magnet |
| CN108231311A (en) * | 2016-12-21 | 2018-06-29 | 中国科学院宁波材料技术与工程研究所 | Prepare device, neodymium iron boron magnetic body of neodymium iron boron magnetic body and preparation method thereof |
| CN107310011A (en) * | 2017-08-17 | 2017-11-03 | 常德碳汇工艺品科技有限公司 | A kind of isotropism wood particle panels |
| CN107310011B (en) * | 2017-08-17 | 2019-12-20 | 常德碳汇工艺品科技有限公司 | Isotropic wood particle board |
| CN108247045A (en) * | 2018-01-31 | 2018-07-06 | 金堆城钼业股份有限公司 | A kind of device and method that super large-scale molybdenum product is prepared using isostatic cool pressing mode |
| CN108247045B (en) * | 2018-01-31 | 2021-03-23 | 金堆城钼业股份有限公司 | Device and method for preparing molybdenum product with ultra-large specification by using cold isostatic pressing mode |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090729 Termination date: 20101027 |