CN107351227A - A kind of dry-pressing formed cavity plate of permanent-magnet ferrite - Google Patents
A kind of dry-pressing formed cavity plate of permanent-magnet ferrite Download PDFInfo
- Publication number
- CN107351227A CN107351227A CN201710510736.7A CN201710510736A CN107351227A CN 107351227 A CN107351227 A CN 107351227A CN 201710510736 A CN201710510736 A CN 201710510736A CN 107351227 A CN107351227 A CN 107351227A
- Authority
- CN
- China
- Prior art keywords
- permanent
- cavity plate
- dry
- magnet ferrite
- pressing formed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/0097—Press moulds; Press-mould and press-ram assemblies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/0002—Auxiliary parts or elements of the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/40—Moulds; Cores; Mandrels characterised by means for modifying the properties of the moulding material
- B28B7/42—Moulds; Cores; Mandrels characterised by means for modifying the properties of the moulding material for heating or cooling, e.g. steam jackets, by means of treating agents acting directly on the moulding material
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
Abstract
The invention discloses a kind of dry-pressing formed cavity plate of permanent-magnet ferrite, including core rod and the die sleeve being set in outside core rod, the die sleeve inner ring is provided with least one annular cooling water groove, and the die sleeve is provided with water inlet and delivery port, and the water inlet is connected with delivery port with the bosh.The invention provides one kind can solve the problem that when dry powder blank suppresses high density permanent-magnet ferrite, because unit pressure is high, knockout press is big, cause cavity plate to be molded the dry-pressing formed cavity plate of permanent-magnet ferrite for the problem of position generates heat.
Description
Technical field
The present invention relates to technical field of permanent magnetic material preparation, more particularly to a kind of dry-pressing formed cavity plate of permanent-magnet ferrite.
Background technology
Permanent-magnet material is widely used in Aero-Space, automatically controlled, the field such as automobile and household electrical appliances, with Domestic Automotive Industry
High speed development and rare earth protection development strategy implementation, permanent-magnet ferrite industry welcome more vast potential for future development.
High density permanent-magnet ferrite forming method is generally divided into Wet-pressing molding and dry-pressing formed, dry-pressing formed to be also referred to as molded into
Type, it is a kind of forming method of metal dust and ceramic powders, exactly dry powder blank is packed into metal die cavity, pressed
Become dense green.When dry powder blank suppresses high density permanent-magnet ferrite, the especially highly high product of product, due to
Unit pressure is high, knockout press is big, it is easy to causes cavity plate shaping position heating, causes temperature too high, can cause product defects, drop
The indentation mould life-span.
The content of the invention
The present invention is in order to overcome deficiency of the prior art, there is provided one kind can solve the problem that suppresses high density in dry powder blank
During permanent-magnet ferrite, because unit pressure is high, knockout press is big, causes cavity plate to be molded the permanent-magnet ferrite for the problem of position generates heat and do
Molded cavity plate.
To achieve these goals, the present invention uses following technical scheme：
A kind of dry-pressing formed cavity plate of permanent-magnet ferrite, including core rod and the die sleeve that is set in outside core rod, the die sleeve inner ring are provided with
At least one annular cooling water groove, the die sleeve are provided with water inlet and delivery port, the water inlet and delivery port and described cold
But tank is connected.
As a preferred technical solution of the present invention, the bosh is at least two, adjacent two cooling waters
It is connected between groove by connectivity slot.
As a preferred technical solution of the present invention, the bosh is at least three, and the connectivity slot only connects
Two adjacent boshes, neighbouring two connectivity slots are oppositely arranged so that cooling water of the cooling water in die sleeve inner ring
Linking number week takes away the heat of cavity plate in groove.
As a preferred technical solution of the present invention, the water inlet and delivery port are threaded with water pipe respectively.
As a preferred technical solution of the present invention, the water pipe being connected with the delivery port is connected with cooling device, institute
State cooling device and be connected with the water pipe that the water inlet is connected.Cooling water after use reenters after apparatus for supercooling
Concave die, it is recycled.
As a preferred technical solution of the present invention, the water pipe being connected with the water inlet is connected with compression pump.
As a preferred technical solution of the present invention, core rod and the die sleeve interference fit.Cooling water must be closed circuit
Circulation, i.e., bosh will ensure to close, can be with after core rod and die sleeve pressing because bosh is opened on die sleeve inner ring
Ensure the sealing of bosh.
Cavity plate before compaction connects the water pipe of the water inlet on die sleeve and water outlet respectively with outside, and compression pump carries
For intake pressure, cooling water is flowed out after entering bosh, take away the die cavity of core rod in heat caused by compacting.
The beneficial effect that is reached of the present invention is compared with prior art：It can solve the problem that in dry powder blank compacting high density forever
During magnetic ferrites, because unit pressure is high, knockout press is big, causes cavity plate to be molded the problem of position generates heat, reduce permanent magnet oxygen
Body product defects, improves the cavity plate life-span, and it is simple in construction, cooling effect is obvious.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
In figure：1st, core rod, 2, die sleeve, 3, bosh, 4, connectivity slot, 5, water inlet, 6, delivery port.
Embodiment
The preferred embodiments of the present invention are illustrated below in conjunction with accompanying drawing, it will be appreciated that described herein preferred real
Apply example to be merely to illustrate and explain the present invention, be not intended to limit the present invention.
As shown in figure 1, a kind of dry-pressing formed cavity plate of permanent-magnet ferrite, including core rod 1 and the die sleeve 2 that is set in outside core rod 1,
Core rod 1 and die sleeve 2 are interference fitted.
The inner ring of die sleeve 2 is provided with three annular cooling water grooves 3, is connected between adjacent two boshes 3 by connectivity slot 4
Connect, two adjacent boshes 3 of 4 connections of connectivity slot, neighbouring two connectivity slots 4 are oppositely arranged so that cooling water
Take away the heat of cavity plate linking number week in the bosh 3 of the inner ring of die sleeve 2.
Die sleeve 2 is provided with water inlet 5 and delivery port 6, and water inlet 5 is connected with delivery port 6 with bosh 3, water inlet 5
Water pipe is threaded with respectively with delivery port 6, and the water pipe being connected with water inlet 5 is connected with compression pump, the water being connected with delivery port 6
Pipe is connected with cooling device, cooling device and is connected with the water pipe that water inlet 5 is connected, and the cooling water after use fills through supercooling
Postpone and reenter cavity plate, be recycled.
Cavity plate before compaction connects the water pipe at the water inlet 5 and delivery port 6 on die sleeve 2 respectively with outside, pressure
Pump provides intake pressure, cooling water is flowed out after entering bosh 3, takes away the die cavity of core rod 1 in heat caused by compacting.
Finally it should be noted that：The preferred embodiments of the present invention are these are only, are not intended to limit the invention, although
The present invention is described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can be right
Technical scheme described in foregoing embodiments is modified, or carries out equivalent substitution to which part technical characteristic.It is all
Within the spirit and principles in the present invention, any modification, equivalent substitution and improvements made etc., the protection of the present invention should be included in
Within the scope of.
Claims (7)
1. a kind of dry-pressing formed cavity plate of permanent-magnet ferrite, including core rod and the die sleeve that is set in outside core rod, it is characterised in that it is described
Die sleeve inner ring is provided with least one annular cooling water groove, and the die sleeve is provided with water inlet and delivery port, the water inlet and goes out
The mouth of a river is connected with the bosh.
2. the dry-pressing formed cavity plate of a kind of permanent-magnet ferrite according to claim 1, it is characterised in that the bosh is extremely
It is two less, is connected between adjacent two boshes by connectivity slot.
3. the dry-pressing formed cavity plate of a kind of permanent-magnet ferrite according to claim 2, it is characterised in that the bosh is extremely
It it is less three, the connectivity slot only connects two adjacent boshes, and neighbouring two connectivity slots are oppositely arranged.
4. the dry-pressing formed cavity plate of a kind of permanent-magnet ferrite according to claim 1, it is characterised in that the water inlet and go out
The mouth of a river is threaded with water pipe respectively.
5. the dry-pressing formed cavity plate of a kind of permanent-magnet ferrite according to claim 1, it is characterised in that connect with the delivery port
The water pipe connect is connected with cooling device, the cooling device and is connected with the water pipe that the water inlet is connected.
6. the dry-pressing formed cavity plate of a kind of permanent-magnet ferrite according to claim 4, it is characterised in that connect with the water inlet
The water pipe connect is connected with compression pump.
7. the dry-pressing formed cavity plate of a kind of permanent-magnet ferrite according to claim 1, it is characterised in that the core rod and die sleeve
Interference fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710510736.7A CN107351227A (en) | 2017-06-28 | 2017-06-28 | A kind of dry-pressing formed cavity plate of permanent-magnet ferrite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710510736.7A CN107351227A (en) | 2017-06-28 | 2017-06-28 | A kind of dry-pressing formed cavity plate of permanent-magnet ferrite |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107351227A true CN107351227A (en) | 2017-11-17 |
Family
ID=60272692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710510736.7A Pending CN107351227A (en) | 2017-06-28 | 2017-06-28 | A kind of dry-pressing formed cavity plate of permanent-magnet ferrite |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107351227A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111516123A (en) * | 2019-08-23 | 2020-08-11 | 横店集团东磁股份有限公司 | Implementation method for permanent magnetic ferrite wet-pressing magnetic field forming die material injection plate |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11100602A (en) * | 1997-09-25 | 1999-04-13 | Hitachi Powdered Metals Co Ltd | Formation of powder in powder metallurgy, and method for lubricating die and punching die for forming |
| CN201979086U (en) * | 2010-12-09 | 2011-09-21 | 扬州保来得科技实业有限公司 | Water cooled middle mould |
| CN202291404U (en) * | 2011-10-20 | 2012-07-04 | 傅叶平 | Water-cooled mould for powder metallurgy |
| CN202779790U (en) * | 2012-08-31 | 2013-03-13 | 扬州立德粉末冶金有限责任公司 | Die for pressing powder metallurgy products |
| CN204052904U (en) * | 2014-08-01 | 2014-12-31 | 东睦新材料集团股份有限公司 | A kind of powder metallurgy water-cooled former |
| CN204276858U (en) * | 2014-11-27 | 2015-04-22 | 长城汽车股份有限公司 | Cooling core and mould |
| CN104551578A (en) * | 2014-12-25 | 2015-04-29 | 安徽金寨将军磁业有限公司 | Machining method for alloy embedding of hard alloy die for permanent magnetic ferrite tile |
| CN204565111U (en) * | 2015-03-09 | 2015-08-19 | 扬州海昌粉末冶金有限公司 | A kind of with mould in the shaping of cooling system |
| CN204749189U (en) * | 2015-05-21 | 2015-11-11 | 福建省海耀工程管道制造有限责任公司 | Pipeline forming die's cooling device |
-
2017
- 2017-06-28 CN CN201710510736.7A patent/CN107351227A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11100602A (en) * | 1997-09-25 | 1999-04-13 | Hitachi Powdered Metals Co Ltd | Formation of powder in powder metallurgy, and method for lubricating die and punching die for forming |
| CN201979086U (en) * | 2010-12-09 | 2011-09-21 | 扬州保来得科技实业有限公司 | Water cooled middle mould |
| CN202291404U (en) * | 2011-10-20 | 2012-07-04 | 傅叶平 | Water-cooled mould for powder metallurgy |
| CN202779790U (en) * | 2012-08-31 | 2013-03-13 | 扬州立德粉末冶金有限责任公司 | Die for pressing powder metallurgy products |
| CN204052904U (en) * | 2014-08-01 | 2014-12-31 | 东睦新材料集团股份有限公司 | A kind of powder metallurgy water-cooled former |
| CN204276858U (en) * | 2014-11-27 | 2015-04-22 | 长城汽车股份有限公司 | Cooling core and mould |
| CN104551578A (en) * | 2014-12-25 | 2015-04-29 | 安徽金寨将军磁业有限公司 | Machining method for alloy embedding of hard alloy die for permanent magnetic ferrite tile |
| CN204565111U (en) * | 2015-03-09 | 2015-08-19 | 扬州海昌粉末冶金有限公司 | A kind of with mould in the shaping of cooling system |
| CN204749189U (en) * | 2015-05-21 | 2015-11-11 | 福建省海耀工程管道制造有限责任公司 | Pipeline forming die's cooling device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111516123A (en) * | 2019-08-23 | 2020-08-11 | 横店集团东磁股份有限公司 | Implementation method for permanent magnetic ferrite wet-pressing magnetic field forming die material injection plate |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171117 |
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| RJ01 | Rejection of invention patent application after publication |