CN202367199U - Oxygen-free forming device - Google Patents
Oxygen-free forming device Download PDFInfo
- Publication number
- CN202367199U CN202367199U CN2011204876596U CN201120487659U CN202367199U CN 202367199 U CN202367199 U CN 202367199U CN 2011204876596 U CN2011204876596 U CN 2011204876596U CN 201120487659 U CN201120487659 U CN 201120487659U CN 202367199 U CN202367199 U CN 202367199U
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Abstract
An oxygen-free forming device includes a fully-enclosed weighing box, a fully-enclosed press and a fully-enclosed placing box, and is characterized in that the oxygen-free forming device also includes an enclosed channel I used for communicating the fully-enclosed weighing box with the fully-enclosed press, and an enclosed channel II used for communicating the fully-enclosed press with the fully-enclosed placing box. The device is applicable to the forming process of the sintered NdFeB magnet needing the oxygen-free technology. The oxygen-free forming device is highly operable, can improve the magnetic property of the NdFeB magnet, reduces the possibility of product abandonment due to oxidation, and reduces the cost.
Description
Technical field
The utility model relates to a kind of novel anaerobic shaped device, particularly a kind of anaerobic shaped device that is applicable to performance Nd Fe B sintered magnet.
Background technology
Sintered Nd-Fe-B permanent magnetic material is since last century, the eighties was come out; It is the strongest to have become contemporary magnetic; The magnetic material that cost performance is the highest, it not only has excellent specific properties such as high remanent magnetism, high-coercive force, high energy product, and is processed into the magnet of different shape, specification easily; Therefore be widely used in the device and the equipment of permanent-magnetic fields such as electroacoustic telecommunication, motor, instrument, nuclear magnetic resonance, magnetic suspension and magnetic seal, be specially adapted to make various high-performance, complex-shaped product.
Because the component of neodymium iron boron magnetic body all is very easy to oxidation; Therefore its production process is very high to the requirement of anaerobic technology; Especially adopt that scale ingot casting, hydrogen are quick-fried, airflow milling, moulding, when the sintering process route is produced magnet; Because the Magnaglo granularity is thinner, oxygen content is lower, product oxidation more easily.In case the product oxidation, not only magnetic property is affected, and product scraps easily, influences the time of delivery, has increased loss.The key of anaerobic technology just before moulding, after moulding and the moulding during this period of time.Powder need be weighed by technological requirement before the moulding, and certain distance is arranged between weighing case and the press, and the process that shifts the powder that weighs up can contact the air of a period of time, can make the powder oxidation; Powder will be poured die cavity into during moulding, and these processes of the forming demoulding are all wanted ingress of air, can make powder or product oxidation; Product after the moulding shifts the air that also can contact a period of time at press with putting between the hopper, also can make the product oxidation.Said process all can make powder or product oxidation, properties of product are reduced even scraps.
The utility model content
The purpose of the utility model is to provide a kind of novel anaerobic shaped device, make magnetic weigh, ingress of air less as far as possible in die mould and the transfer process, reduce the probability of oxidation.It possesses simple in structure, and the outstanding effect characteristics can be used for the moulding process protection of performance Nd Fe B sintered magnet in enormous quantities.
The anaerobic shaped device of the utility model; It comprises totally-enclosed weighing case 2, totally-enclosed press 4 and the totally-enclosed hopper 5 of putting; It is characterized in that: it comprises that also airtight passage 1 is used to be communicated with totally-enclosed weighing case 2 and totally-enclosed press 4, and airtight passage 28 is used to be communicated with totally-enclosed press 4 and the totally-enclosed hopper 5 of putting.
Preferably, can place the weighing utensil 3 that is used for the weighing powder in the described totally-enclosed weighing case 2, totally-enclosed putting can be placed the earthen bowl 6 that holds product behind the die mould in the hopper 5.
Preferably, described totally-enclosed weighing case 2, totally-enclosed press 4, totally-enclosed hopper 5, airtight passage 1 and the airtight passage 28 put adopt inert gas shielding or nitrogen protections.
Preferably, can also comprise product after transmission device is used to transmit powder and moulding in described airtight passage 1 and the airtight passage 28.
The utility model weighing case, totally-enclosed press, put hopper and be linked to be an integral body; Link to each other through a passage one between weighing case and the totally-enclosed press, the powder that weighs up is transferred to totally-enclosed press through this passage, and totally-enclosed press links to each other through another passage two with putting between the hopper; The product of forming is transferred to through this passage and is put hopper; Powder and shaped article are under the protective atmosphere protection all the time, do not make their ingresss of air, not only guaranteed product quality; Improved production efficiency simultaneously, made product reduce greatly because of the loss that causes off quality.
Description of drawings
Fig. 1 is the front view of the utility model anaerobic shaped device;
Fig. 2 is the vertical view of the utility model anaerobic shaped device.
The specific embodiment
The utility model weighing case, totally-enclosed press, put hopper and be linked to be an integral body; Link to each other through a passage one between weighing case and the totally-enclosed press; The powder that weighs up is transferred to totally-enclosed press through this passage, and totally-enclosed press links to each other through another passage two with putting between the hopper, and the product of forming is transferred to through this passage and put hopper; Powder and shaped article are under the protective atmosphere protection all the time, do not make their ingresss of air.
Fig. 1 is the front view of the utility model anaerobic shaped device.As shown in Figure 1; After powder puts down from charging basket 1; According to weighing on the weighing utensil 3 of technological requirement in weight box 2; The powder that weighs up is transferred to sealing press 4 through airtight passage 1, and product is transferred to through airtight passage 28 and put hopper 5 after moulding on the sealing press 4, in putting hopper 5, is placed on 6 li in special-purpose earthen bowl to product.The charging basket 1 that powder wherein is housed has atmosphere protection; Weight box 2 also is the gas shield that has of sealing with putting hopper 5; Sealing press 4 is also under gas shield; Add the airtight passage 1 and airtight passage 28 of atmosphere protection, powder or product all are under the protection of atmosphere in the whole process.Above-mentioned atmosphere protection can be that inert gas shielding also can be nitrogen protection.Wherein, two passages have been brought into play key effect, and the anaerobic technological level is improved significantly, and properties of product also are guaranteed.
Fig. 2 is the vertical view of the utility model anaerobic shaped device, and wherein 1 ' is the charging aperture of charging basket 1 on weight box 2.
According to actual operating position, product after powder that transfer weighs up in airtight passage 1 and airtight passage 28 and the moulding promptly can be manual operations, also can adopt conveyer, but this conveyer must be under the atmosphere protection also.
This apparatus structure is simple, and is easy to operate, and the control oxidation effectiveness is remarkable, can be used for industrialized mass production.
Claims (4)
1. anaerobic shaped device; It comprises totally-enclosed weighing case (2), totally-enclosed press (4) and the totally-enclosed hopper (5) of putting; It is characterized in that: it comprises that also airtight passage one (7) is used to be communicated with totally-enclosed weighing case (2) and totally-enclosed press (4), and airtight passage two (8) is used to be communicated with totally-enclosed press (4) and the totally-enclosed hopper (5) of putting.
2. anaerobic shaped device as claimed in claim 1 is characterized in that: described totally-enclosed weighing case (2), totally-enclosed press (4), totally-enclosed hopper (5), airtight passage one (7) and the airtight passage two (8) put adopt inert gas shielding or nitrogen protection.
3. according to claim 1 or claim 2 anaerobic shaped device is characterized in that: can place the weighing utensil (3) that is used for the weighing powder in the described totally-enclosed weighing case (2), totally-enclosed putting can be placed the earthen bowl (6) that holds product behind the die mould in the hopper (5).
4. according to claim 1 or claim 2 anaerobic shaped device is characterized in that: also comprise the product after transmission device is used to transmit powder and moulding in described airtight passage one (7) and the airtight passage two (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204876596U CN202367199U (en) | 2011-11-30 | 2011-11-30 | Oxygen-free forming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204876596U CN202367199U (en) | 2011-11-30 | 2011-11-30 | Oxygen-free forming device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202367199U true CN202367199U (en) | 2012-08-08 |
Family
ID=46590923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204876596U Expired - Lifetime CN202367199U (en) | 2011-11-30 | 2011-11-30 | Oxygen-free forming device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202367199U (en) |
-
2011
- 2011-11-30 CN CN2011204876596U patent/CN202367199U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120808 |