CN110243188A - A kind of NdFeB Vacuum Sintering Furnace - Google Patents
A kind of NdFeB Vacuum Sintering Furnace Download PDFInfo
- Publication number
- CN110243188A CN110243188A CN201910537976.5A CN201910537976A CN110243188A CN 110243188 A CN110243188 A CN 110243188A CN 201910537976 A CN201910537976 A CN 201910537976A CN 110243188 A CN110243188 A CN 110243188A
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- Prior art keywords
- furnace body
- cooling
- furnace
- chamber
- connecting rod
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D15/00—Handling or treating discharged material; Supports or receiving chambers therefor
- F27D15/02—Cooling
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
- F27D2019/0028—Regulation
- F27D2019/0056—Regulation involving cooling
Abstract
The present invention relates to a kind of vacuum sintering furnace more particularly to a kind of NdFeB Vacuum Sintering Furnaces.Technical problem of the invention are as follows: material sintering and the cooling space that separates can be carried out by providing one kind, accelerate the cooling velocity of agglomerated material, while can control the NdFeB Vacuum Sintering Furnace of agglomerated material cooling velocity.Implementer's case of the invention are as follows: a kind of NdFeB Vacuum Sintering Furnace, including organic frame, furnace body etc.；Furnace body is installed in the rack.The present invention is by being sintered material in agglomerating chamber; the material sintered is moved in cooling chamber again and is cooled down; agglomerating chamber and cooling chamber are respectively divided the work; it can accelerate the cooling velocity of material, air-cooled and water cooling combines, and accelerates the cooling velocity of agglomerated material; adjust the water flow slot number of water inlet as needed simultaneously; the cooling velocity of sintering furnace is adjusted with this, preferably agglomerated material can be cooled down, and can also protect sintering furnace.
Description
Technical field
The present invention relates to a kind of vacuum sintering furnace more particularly to a kind of NdFeB Vacuum Sintering Furnaces.
Background technique
Neodymium iron boron is briefly a kind of magnet and magnet that we usually see the difference is that it is because of excellent magnetic
Performance and be referred to as " magnetic king ".It is hard and crisp containing a large amount of rear earth element nd and iron and boron, characteristic in neodymium iron boron.Neodymium iron
Boron needs to be sintered during production, therefore with regard to needing to use vacuum sintering furnace.
Currently, NdFeB material was before this sintered NdFeB material by high temperature after entering vacuum sintering furnace,
Material after material is sintered, then by way of air-cooled or water cooling to sintering furnace and after sintering cools down, now
Vacuum sintering furnace sintering and cooling all in a space, therefore in cooling agglomerated material, it is also necessary to spend bigger energy
Amount removes cooling sintering furnace itself, therefore agglomerated material cooling velocity is very slow, and the cooling velocity of sintering furnace and agglomerated material
It can not control.
A kind of vacuum sintering furnace of patent disclosure that license notification number is CN207649350U, including furnace shell and furnace shell
Interior agglomerating chamber, is successively cased with induction coil and water-cooled jacket on the outside of agglomerating chamber outward, the bottom of water-cooled jacket vertical direction be inserted with every
Plate is divided into upstream room and downstream room positioned at partition two sides inside water-cooled jacket, and upstream room is connected to the upper end of downstream room, upstream room
It is connected separately with water inlet pipe and outlet pipe with the lower end of downstream room, upstream room and downstream room upper end connectivity part are connected with exhaust pipe,
Exhaust valve and observation panel are installed on exhaust pipe, has reached and water-cooled jacket and water inlet pipe is avoided to generate noise.The sintering furnace sintering and
All in the same space, agglomerated material cooling velocity is slow, while can not control the cooling velocity of agglomerated material for cooling.
Summary of the invention
In order to overcome present agglomerated material cooling velocity slow, and the cooling velocity of sintering furnace and agglomerated material cannot be controlled
The shortcomings that processed, therefore, technical problem of the invention are as follows: material sintering and the cooling space that separates can be carried out by providing one kind, be added
The cooling velocity of fast agglomerated material, while can control the NdFeB Vacuum Sintering Furnace of agglomerated material cooling velocity.
Implementer's case of the invention are as follows: a kind of NdFeB Vacuum Sintering Furnace, including organic frame, furnace body, hydrogen inlet pipe,
Vacuum pump, connecting tube, cover board, demarcation plate, resistance heater, mobile device, apparatus for placing and water cooling unit are installed in the rack
There is furnace body, is equipped with demarcation plate in the furnace body, furnace body is divided into agglomerating chamber and cooling chamber two spaces, the furnace by the demarcation plate
Hydrogen inlet pipe, the hydrogen inlet pipe and agglomerating chamber are installed on body and cooling chamber two spaces penetrate through, the frame lower is equipped with
Vacuum pump, the vacuum pump are connected by the agglomerating chamber and cooling of connecting tube and furnace body, are installed in furnace body agglomerating chamber space
Have a resistance heater, the furnace body left part is equipped with cover board, in the furnace body middle part be equipped with agglomerate bodies in agglomerating chamber and
The mobile device of cooling indoor moving, is equipped with the apparatus for placing for placing agglomerate bodies in the mobile device, outside the furnace body
Right side is equipped with water cooling unit, and at least two water flow grooves are provided on the furnace body wall, are provided with connectivity slot, the company on the right side of the furnace body
Water flow grooves are connected to by through slot with the inlet and outlet of water cooling unit.
In a preferred embodiment of the present invention, the mobile device includes decelerating motor, threaded rod, nut, connection
Bar, blocking plate, track and the first sliding block, the decelerating motor are mounted on upper wall in furnace body cooling chamber, the decelerating motor it is defeated
Outlet is connected with threaded rod, and nut is combined on the threaded rod, and connecting rod is connected on the nut, is opened on the demarcation plate
There are at least two through-holes in the front-back direction, is connected with blocking plate identical with number of openings, the blocking plate in the connecting rod
In through-hole, track installation lower part in furnace body agglomerating chamber, slidingtype is connected with the first sliding block on the track, and described
One sliding block is connect with connecting rod.
It in a preferred embodiment of the present invention, further include having bearing block, the bearing block is mounted in furnace body agglomerating chamber
Right wall, the threaded rod pass through demarcation plate and connect with bearing block interference.
In a preferred embodiment of the present invention, the apparatus for placing include connecting rod, slide-bar, rack, the second sliding block,
Elastic component, link block and sprue, the connecting rod front and back are mounted on the left of blocking plate for one group, and the connecting rod passes through slide-bar and sliding slot
It is connected with the rack that can be slided with left and right directions, the sliding slot two are opened in side before and after rack for one group, before the slide-bar
It is mounted on connecting rod for one group afterwards, equal slidingtype is equipped with the second sliding block that front and back is one group, second sliding block in every group of sliding slot
It is connected with elastic component between sliding slot, sprue is connected with by link block between every group of the second sliding block left side.
It in a preferred embodiment of the present invention, further include having shell, pipeline, blower and Air cooler, the shell installation
On furnace body, blower is installed in the shell, the blower is equipped with the pipe of arc in furnace body cooling chamber on the shell
Road, pipeline tail end and furnace body cooling chamber penetrate through, and are equipped with Air cooler on the furnace body, the Air cooler is connect with pipeline.
In a preferred embodiment of the present invention, further include having plug and pushing block, be provided at least two in the furnace body right wall
A arc groove, the arc groove are connected to corresponding water flow grooves, and a word hole, institute are provided in the furnace body right wall on the right side of the arc groove
It states arc groove inner sliding type and is equipped with the plug for blocking water flow grooves, pushing block is connected on the right side of the plug, the pushing block passes through one
Word hole.
Compared with prior art, the invention has the following advantages that the present invention is by being sintered material in agglomerating chamber,
The material sintered is moved in cooling chamber again and is cooled down, agglomerating chamber and cooling chamber are respectively divided the work, and material can be accelerated
Cooling velocity, air-cooled and water cooling combine, and accelerate the cooling velocity of agglomerated material, while adjusting the water flow grooves of water inlet as needed
Quantity adjusts the cooling velocity of sintering furnace with this, can preferably cool down to agglomerated material, can also protect sintering
Furnace.
Detailed description of the invention
Fig. 1 is schematic view of the front view of the invention.
Fig. 2 is the schematic view of the front view of apparatus for placing of the present invention.
Fig. 3 is part left view structural representation of the invention.
Fig. 4 is part right side structural representation of the invention.
The label of each components is as follows in attached drawing: 1, rack, 2, furnace body, 3, hydrogen inlet pipe, 4, vacuum pump, 5, connecting tube,
6, cover board, 7, demarcation plate, 8, resistance heater, 9, through-hole, 10, bearing block, 11, decelerating motor, 12, threaded rod, 13, nut,
14, connecting rod, 15, blocking plate, 16, track, the 17, first sliding block, 18, apparatus for placing, 181, connecting rod, 182, slide-bar, 183, put
Set frame, 184, sliding slot, the 185, second sliding block, 186, elastic component, 187, link block, 188, sprue, 19, water cooling unit, 191, connection
Slot, 20, water flow grooves, 21, shell, 22, pipeline, 23, blower, 24, Air cooler, 25, arc groove, 26, one word hole, 27, plug,
28, pushing block.
Specific embodiment
It is first pointed out that same parts are equipped with identical appended drawing reference phase in other words in the embodiment of different descriptions
Same component name, wherein the disclosure for including throughout the specification can be converted to attached drawing having the same by meaning
Label is in other words in the same parts of identical component name.Selected position description, for example upper and lower, side in the description
To etc. by meaning be converted to new position on referring also to attached drawing that is directly describing and showing and in position change.
Embodiment 1
A kind of NdFeB Vacuum Sintering Furnace, as shown in Figure 1, Figure 2, and Figure 4, including organic frame 1, furnace body 2, hydrogen
Inlet pipe 3, vacuum pump 4, connecting tube 5, cover board 6, demarcation plate 7, resistance heater 8, mobile device, apparatus for placing 18 and water cooling unit
19, furnace body 2 is installed in the rack 1, is equipped with demarcation plate 7 in the furnace body 2, furnace body 2 is divided into agglomerating chamber by the demarcation plate 7
With cooling chamber two spaces, 2 bottom of furnace body is equipped with hydrogen inlet pipe 3, the hydrogen inlet pipe 3 and agglomerating chamber and cooling chamber two
The perforation of a space, 1 lower part of rack are equipped with vacuum pump 4, and the vacuum pump 4 passes through the agglomerating chamber of connecting tube 5 and furnace body 2 and cold
But it connects, resistance heater 8 is installed in the 2 agglomerating chamber space of furnace body, 2 left part of furnace body is equipped with cover board 6, the furnace
Middle part is equipped in body 2 installs agglomerate bodies in agglomerating chamber and the mobile device for cooling down indoor moving, the mobile device
There is the apparatus for placing 18 for placing agglomerate bodies, 2 external right side of furnace body is equipped with water cooling unit 19, is provided with ten on 2 wall of furnace body
A water flow grooves 20, are provided with connectivity slot 191 on the right side of the furnace body 2, and the connectivity slot 191 is by the disengaging of water flow grooves 20 and water cooling unit 19
Mouth connection.
The present apparatus operates in this way, and the specific operation method is as follows: when carrying out the sintering of neodymium iron boron using the sintering furnace,
It opens firstly the need of by cover board 6, then pulls out apparatus for placing 18 to the left, the material of sintering is then placed on apparatus for placing
On 18, after material is placed, apparatus for placing 18 is pushed back into initial position, then user shuts cover board 6, then user's control
Vacuum pump 4 is started to work, and vacuum pump 4 extracts the air in furnace body 2 completely, so that after becoming vacuum in furnace body 2, user's control
Vacuum pump 4 stops working, and then user is injected hydrogen into furnace body 2 by hydrogen inlet pipe 3, so that furnace body 2 is full of hydrogen, so
Stop injecting hydrogen by hydrogen inlet pipe 3 afterwards, then user is mobile by the material of mobile device by apparatus for placing 18 and thereon
Into 2 agglomerating chamber of furnace body, resistance heater 8 can be controlled at this time and is begun to warm up, the material on apparatus for placing 18 is burnt
Knot, after material is sintered, user's control resistance heater 8 stops working, and then user passes through mobile device for apparatus for placing
18 and the material that sinters thereon be moved to the left and melt down in 2 cooling chamber of body, user's control water cooling unit 19 is started to work at this time, cold water
It after the inner wall for flowing through furnace body 2 by connectivity slot 191, returns and is cooled down in water cooling unit 19, then again by connectivity slot 191
Furnace body 2 is flowed through, so recycles, material and furnace body 2 is cooled down, material and furnace body 2 cool and finish, and can will burn
When the material tied takes out, user's control water cooling unit 19 stops working, and then user opens cover board 6, and apparatus for placing 18 is pulled out,
Then the material sintered is taken out, then covers cover board 6.In this way, being sintered in agglomerating chamber to material, then will sintering
Good material, which is moved in cooling chamber, to be cooled down, and the cooling velocity of material can be accelerated.
As shown in Fig. 1, the mobile device includes bearing block 10, decelerating motor 11, threaded rod 12, nut 13, connects
Extension bar 14, blocking plate 15, track 16 and the first sliding block 17, the bearing block 10 is mounted on 2 agglomerating chamber's inner right wall of furnace body, described to subtract
Speed motor 11 is mounted on upper wall in 2 cooling chamber of furnace body, and the output end of the decelerating motor 11 is connected with threaded rod 12, the screw thread
Bar 12 passes through demarcation plate 7 and connect with 10 interference of bearing block, and nut 13 is combined on the threaded rod 12, is connected on the nut 13
There is connecting rod 14, opened on the demarcation plate 7 there are three through-hole 9 in the front-back direction, is connected in the connecting rod 14 and the number of through-hole 9
Identical blocking plate 15 is measured, for the blocking plate 15 in through-hole 9, the track 16 is mounted on lower part in 2 agglomerating chamber of furnace body, described
Slidingtype is connected with the first sliding block 17 on track 16, and first sliding block 17 is connect with connecting rod 14.
The present apparatus operates in this way, and the specific operation method is as follows: adjusting position needing to move left and right apparatus for placing 18
When setting, control decelerating motor 11 rotate forward perhaps reversion drive threaded rod 12 rotate forward perhaps reversion so that nut 13 to the left or to
It moves right, connecting rod 14 is driven perhaps to move right to the left and then drive apparatus for placing 18 to the left or move right, place dress
18 are set to the left or after moving right to and needing position, control motor stops working.
As shown in Fig. 2, the apparatus for placing 18 includes connecting rod 181, slide-bar 182, rack 183, the second sliding block
185, elastic component 186, link block 187 and sprue 188 are mounted on 15 left side of blocking plate for one group before and after the connecting rod 181, described
Connecting rod 181 is connected with the rack 183 that can be slided with left and right directions, the sliding slot 184 two by slide-bar 182 and sliding slot 184
It is opened in 183 front and back side of rack for one group, is mounted on connecting rod 181 before and after the slide-bar 182 for one group, in every group of sliding slot 184
Equal slidingtype is equipped with the second sliding block 185 that front and back is one group, is connected with elastic component between second sliding block 185 and sliding slot 184
186, elastic component 186 can be extension spring, common spring and gas spring etc., pass through between every group of 185 left side of the second sliding block
Link block 187 is connected with sprue 188.
The present apparatus operates in this way, and the specific operation method is as follows: when opening cover board 6 is put into agglomerated material, Ke Yitong
It crosses sprue 188 to pull out rack 183, then agglomerated material can be placed on rack 183, then pass through sprue 188
Rack 183 is back into initial position, is brought into the agglomerated material that connecting rod 14 moves right by rack 183 and thereon
When in the agglomerating chamber of furnace body 2, blocking plate 15 can leave through-hole 9, and sprue 188 can enter in through-hole 9 and block through-hole 9 at this time,
So agglomerating chamber and cooling chamber are isolated, simultaneously as flexible part 186, gained sprue 188 has the space being moved to the left, and prevents
Only motor control not in time, causes sprue 188 to collide with demarcation plate 7.So much the better protects equipment.
Embodiment 2
It as shown in Fig. 3, further include having shell 21, pipeline 22, blower 23 and Air cooler 24 in order to accelerate cooling velocity,
The shell 21 is mounted on furnace body 2 by bolt, and blower 23 is equipped in the shell 21, and the blower 23 is cold in furnace body 2
Indoor, the pipeline 22 of arc is installed, 22 tail end of pipeline and 2 cooling chamber of furnace body penetrate through, on the furnace body 2 on the shell 21
Air cooler 24 is installed, the Air cooler 24 is connect with pipeline 22.
The present apparatus operates in this way, and the specific operation method is as follows: when cooling down to material, controlling blower 23 and wind
Cold 24 is started to work, and the indoor hydrogen of cooling is pumped into pipeline 22 by blower 23, then passes through Air cooler 24 for the hydrogen of heat
Cooling, hydrogen after cooling is injected by pipeline 22 from the lower part of cooling chamber cold to the material progress sintered in cooling chamber
But, so circulation, air-cooled and water cooling combine, and accelerate the cooling velocity of agglomerated material, after agglomerated material is cooling, control wind
Machine 23 and Air cooler 24 stop working.
As shown in Fig. 4, further include having plug 27 and pushing block 28 in order to control cooling velocity, opened in 2 right wall of furnace body
There are five arc groove 25, the arc groove 25 is connected to corresponding water flow grooves 20, in 2 right wall of furnace body on 25 right side of arc groove
It is provided with a word hole 26,25 inner sliding type of arc groove is equipped with the plug 27 for blocking water flow grooves 20, connects on the right side of the plug 27
It is connected to pushing block 28, the pushing block 28 passes through a word hole 26.
The present apparatus operates in this way, and the specific operation method is as follows: because sintering furnace is when just stopping working, sintering furnace and its
Interior temperature is relatively high, cannot quickly reduce the temperature of sintering furnace very much, otherwise can damage to sintering furnace, at this point,
User can push pushing block 28 to drive plug 27 mobile, and water flow grooves 20 are blocked, the quantity of the water flow grooves 20 of water inlet is reduced,
So that sintering furnace will not cool down too fastly, after sintering furnace cools down to a certain extent, user can have stepped through pushing block 28 and drive plug
Son 27 leaves water flow grooves 20, so that 20 quantity of water flow grooves of water inlet increases, accelerates the cooling velocity of sintering furnace.So as needed
The cooling velocity for adjusting sintering furnace, can preferably cool down agglomerated material, can also protect sintering furnace.
Although describing the disclosure only with respect to the embodiment of limited quantity, the ability of the disclosure is benefited from
Field technique personnel will be understood that, without departing from the scope of the invention, can design various other embodiments.Therefore,
The scope of the present invention should be limited only by the following claims.
Claims (6)
1. a kind of NdFeB Vacuum Sintering Furnace, including organic frame (1), furnace body (2), hydrogen inlet pipe (3), vacuum pump (4), connecting tube
(5), cover board (6) and resistance heater (8) and water cooling unit (19) are equipped with furnace body (2) on the rack (1), the furnace body (2)
On be equipped with hydrogen inlet pipe (3), the hydrogen inlet pipe (3) and agglomerating chamber and cooling chamber two spaces penetrate through, under the rack (1)
Portion is equipped with vacuum pump (4), agglomerating chamber and cooling connection of the vacuum pump (4) by connecting tube (5) and furnace body (2), the furnace
Body (2) agglomerating chamber is equipped with resistance heater (8) in space, and furnace body (2) left part is equipped with cover board (6), the furnace body (2)
External right side is equipped with water cooling unit (19), characterized in that and it further include having demarcation plate (7), mobile device and apparatus for placing (18), it is described
Demarcation plate (7) are equipped in furnace body (2), furnace body (2) is divided into agglomerating chamber and cooling chamber two spaces by the demarcation plate (7), described
Middle part is equipped with agglomerate bodies in agglomerating chamber and the mobile device for cooling down indoor moving, the mobile device in furnace body (2)
The apparatus for placing (18) for placing agglomerate bodies is installed, is provided at least two water flow grooves (20), the furnace on furnace body (2) wall
It is provided with connectivity slot (191) on the right side of body (2), water flow grooves (20) are connected to by the connectivity slot (191) with the inlet and outlet of water cooling unit (19).
2. a kind of NdFeB Vacuum Sintering Furnace described in accordance with the claim 1, characterized in that the mobile device includes to slow down
Motor (11), threaded rod (12), nut (13), connecting rod (14), blocking plate (15), track (16) and the first sliding block (17), institute
It states decelerating motor (11) and is mounted on upper wall in furnace body (2) cooling chamber, the output end of the decelerating motor (11) is connected with threaded rod
(12), it is combined with nut (13) on the threaded rod (12), is connected with connecting rod (14), the demarcation plate on the nut (13)
(7) it is provided at least two through-hole (9) in the front-back direction on, is connected on the connecting rod (14) identical with through-hole (9) quantity
Blocking plate (15), for the blocking plate (15) in through-hole (9), the track (16) is mounted on lower part in furnace body (2) agglomerating chamber, institute
It states slidingtype on track (16) to be connected with the first sliding block (17), first sliding block (17) connect with connecting rod (14).
3. a kind of NdFeB Vacuum Sintering Furnace according to claim 2, characterized in that further include having bearing block (10), institute
It states bearing block (10) and is mounted on furnace body (2) agglomerating chamber inner right wall, the threaded rod (12) passes through demarcation plate (7) and bearing block (10)
Interference connection.
4. a kind of NdFeB Vacuum Sintering Furnace described in accordance with the claim 3, characterized in that the apparatus for placing (18) includes
Connecting rod (181), slide-bar (182), rack (183), the second sliding block (185), elastic component (186), link block (187) and sprue
(188), it is mounted on the left of blocking plate (15) before and after the connecting rod (181) for one group, the connecting rod (181) passes through slide-bar (182)
It is connected with the rack (183) that can be slided with left and right directions with sliding slot (184), the sliding slot (184) two are opened in and put for one group
Frame (183) front and back side is set, is mounted on connecting rod (181) before and after the slide-bar (182) for one group, it is sliding in every group of sliding slot (184)
Dynamic formula is equipped with the second sliding block (185) that front and back is one group, connects between second sliding block (185) and sliding slot (184) flexible
Part (186), on the left of every group of second sliding block (185) between be connected with sprue (188) by link block (187).
5. a kind of NdFeB Vacuum Sintering Furnace according to claim 4, characterized in that further include having shell (21), pipeline
(22), blower (23) and Air cooler (24), the shell (21) are mounted on furnace body (2), are equipped with wind in the shell (21)
Machine (23), the blower (23) are equipped with the pipeline (22) of arc, pipeline in furnace body (2) cooling chamber on the shell (21)
(22) tail end and furnace body (2) cooling chamber penetrate through, and are equipped with Air cooler (24) on the furnace body (2), the Air cooler (24) and pipe
Road (22) connection.
6. a kind of NdFeB Vacuum Sintering Furnace according to claim 5, characterized in that further include having plug (27) and pushing block
(28), it is provided at least two arc grooves (25) in furnace body (2) right wall, the arc groove (25) and corresponding water flow grooves (20)
It is connected to, is provided with a word hole (26) in furnace body (2) right wall on the right side of the arc groove (25), arc groove (25) inner sliding type is set
There is the plug (27) for blocking water flow grooves (20), is connected with pushing block (28) on the right side of the plug (27), the pushing block (28) passes through
One word hole (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910537976.5A CN110243188B (en) | 2019-06-20 | 2019-06-20 | Neodymium iron boron vacuum sintering furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910537976.5A CN110243188B (en) | 2019-06-20 | 2019-06-20 | Neodymium iron boron vacuum sintering furnace |
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| CN110243188A true CN110243188A (en) | 2019-09-17 |
| CN110243188B CN110243188B (en) | 2020-07-14 |
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| CN111578699A (en) * | 2020-05-21 | 2020-08-25 | 厦门澄志精密科技有限公司 | Stainless steel is fritting furnace for brazing |
| CN111795569A (en) * | 2020-06-30 | 2020-10-20 | 宁波元辰新材料有限公司 | Neodymium iron boron vacuum sintering furnace |
| CN113566561A (en) * | 2021-09-26 | 2021-10-29 | 江苏普隆磁电有限公司 | Neodymium iron boron sintering furnace |
| CN115889922A (en) * | 2023-01-09 | 2023-04-04 | 西安稀有金属材料研究院有限公司 | Method for reducing influence of temperature rise and drop process on performance in vacuum brazing process |
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