CN102784914A - Inter-temperature pressing system and method for adhering magnet - Google Patents
Inter-temperature pressing system and method for adhering magnet Download PDFInfo
- Publication number
- CN102784914A CN102784914A CN2012103329257A CN201210332925A CN102784914A CN 102784914 A CN102784914 A CN 102784914A CN 2012103329257 A CN2012103329257 A CN 2012103329257A CN 201210332925 A CN201210332925 A CN 201210332925A CN 102784914 A CN102784914 A CN 102784914A
- Authority
- CN
- China
- Prior art keywords
- temperature
- water
- magnet
- water tank
- electric heater
- 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.)
- Granted
Links
Images
Landscapes
- Manufacturing Cores, Coils, And Magnets (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The invention discloses an inter-temperature pressing system and a method for adhering a magnet. The inter-temperature pressing system comprises a water tank (2) and a control unit (3), wherein a temperature sensor (4) and an electric heater (5) are arranged in the water tank (2); the control unit (3) comprises a controller, a heating control circuit and a temperature sensing signal processing circuit; a hot water inlet (6) is connected to the water tank (2) through a hot water pipe (7); a hot water pump (9) is arranged on the hot water pipe (7); and a reflowing outlet (10) is connected to the water tank (2) through a reflowing pipe (11) in a reflowing way. According to the inter-temperature pressing system for adhering the magnet, a heated medium circularly flows into a die chamber, so that temperature of the die chamber can reach a set softening point temperature of an adhesion agent, thus, the adhesion agent can be softened, which is equivalent to be used as a lubricant for reducing a friction resistance, therefore, magnetic powder can be more tightly combined, a combination clearance is smaller, and the magnet with higher density can be obtained; on the basis of the same prescription, cost of magnet pressing is lower, and a performance is higher; due to adoption of a self-lubricating function of the adhesion agent, so that service life of a die can be prolonged.
Description
Technical field
The present invention relates to compact system and method between a kind of bonded magnet temperature.
Background technology
Along with development of science and technology, the range of application of neodymium iron boron magnetic body is more and more wider, and is also increasingly high to the requirement of neodymium iron boron magnetic body pressed density, and neodymium iron boron magnetic body mixes back compression moulding by soft-magnetic alloy powder and insulating compound, bonding agent and gets.Present magnet compact technique carries out at normal temperatures; Under normal temperature condition, similar wall thickness is thin, highly higher annular magnetic is difficult to suppress desirable density, adopts the method for high pressure compacting can overcome this problem; Yet; When high pressure was suppressed, mould was pulled easily on the one hand, has reduced the service life of mould; On the other hand, explosion takes place in mould easily, directly influences production security.
Summary of the invention
The objective of the invention is to solve the deficiency of prior art; Provide a kind of temperature that will suppress die cavity through intelligent temperature control system to be controlled at the softening point temperature of bonding agent in the magnetic; Make bonding agent produce self-lubricating effect; Can obtain better press power, magnetic compacting combines tightr, compact system and method between the higher bonded magnet temperature of gained magnet density.
The objective of the invention is to realize: compact system between a kind of bonded magnet temperature through following technical scheme; Being used to the magnet press provides compacting required constant temperature; It comprises water tank and control module, is provided with temperature sensor and electric heater in the water tank, and control module comprises controller, heating control circuit and temperature sensor signal treatment circuit; Temperature sensor is connected with the temperature sensor signal treatment circuit; The temperature sensor signal treatment circuit links to each other with controller, and electric heater is connected with heating control circuit, and heating control circuit is connected with the control signal output of controller;
The hot water inlet of magnet press is connected to the hot water exit of water tank through hot-water line, and hot-water line is provided with heat-exchanger pump; The bypass outlet of magnet press is back to water tank through return duct.
The sidewall of die cavity of the present invention is provided with ring-type water-cooling groove and at least one spiral water-cooling groove, and the outlet of ring-type water-cooling groove is communicated with the inlet of spiral water-cooling groove, and the inlet of ring-type water-cooling groove links to each other with hot-water line, and the outlet of spiral water-cooling groove links to each other with return duct.
Electric heater of the present invention is an electrically heated rod.
The water temperature that electric heater of the present invention adds in the thermal control water tank is a constant temperature, and this thermostat temperature is the softening point temperature of magnet compacting bonding agent.
The bottom of water tank of the present invention is provided with drainpipe, and drainpipe is provided with control valve.
Control module of the present invention also comprises display screen, working station indicator and operation keyboard, and display screen, working station indicator and operation keyboard link to each other with controller through bus respectively.
Drawing method between a kind of bonded magnet temperature, it may further comprise the steps:
S1: foundation " the softening point temperature value of magnet compacting bonding agent " database also is stored in the memory;
S2: temperature sensor is gathered the water temperature in the water tank;
S3: controller is compared the softening point temperature value of magnet compacting bonding agent in water temperature value that collects and the database, comparison result is converted into the control instruction of electric heater;
S4: controller issues control instruction to electric heater, and the control electric heater is carried out corresponding heating operation, makes the constant softening point temperature value that is controlled at magnet compacting bonding agent of water temperature in the water tank.
The present invention comprises that also a heat-exchanger pump is controlled at magnet with temperature constant in the water tank and suppresses the water of bonding agent softening point temperature value is delivered to the hot water inlet of magnet press through hot-water line step.
The present invention also comprises step and step that shows water temperature in the water tank in real time of a real-time indicative control unit duty.
The invention has the beneficial effects as follows: under identical magnet compacting prescription, be flowing in the medium circulation that heats in the die cavity of magnet compacting, let die cavity reach the bonding agent softening point temperature of setting through the regular hour; The part of bonding agent contact die cavity is able to soften, and this moment, softening bonding agent was equivalent to become the lubricant that reduces frictional resistance through the high pressure compacting; The change of its state simultaneously is more conducive to the combination between the magnetic; The combination of magnetic is tightr, bonding gap is littler, obtain the higher magnet of density, and the density of magnet is directly proportional with performance; Under same prescription, the cost of magnet compacting magnet performance lower, that obtain is better so; Owing to the self-lubricating function of bonding agent, the frictional force between die cavity and the magnetic is corresponding to be reduced simultaneously, is able to the service life of mould prolong.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the structural representation of die cavity of the present invention;
Among the figure, 1-magnet press, 2-water tank, 3-control module, 4-temperature sensor; The 5-electric heater, 6-hot water inlet, 7-hot-water line, 8-hot water outlet, 9-heat-exchanger pump; The 10-bypass outlet, 11-return duct, 12-drainpipe, 13-control valve, 14-display screen; The 15-operation keyboard, 16-die cavity, 17-ring-type water-cooling groove, 18-spiral water-cooling groove.
The specific embodiment
Below in conjunction with accompanying drawing technical scheme of the present invention is described in further detail, but protection scope of the present invention is not limited to the following stated.
As shown in Figure 1, compact system between a kind of bonded magnet temperature, the die cavity 16 that is used to magnet press 1 provides compacting required constant temperature; It comprises water tank 2 and control module 3, is provided with temperature sensor 4 and electrically heated rod 5 in the water tank 2, and temperature sensor 4 is in order to the water temperature in the real-time collection water tank 2; Electrically heated rod 5 inserts in the water tank 2; Water in order in the heating water tank 2 is controlled to be constant temperature with water temperature, and this thermostat temperature is the softening point temperature (being generally about 40 ℃) of magnet compacting bonding agent.Control module 3 comprises controller, heating control circuit and temperature sensor signal treatment circuit; Temperature sensor 4 is connected with the temperature sensor signal treatment circuit; The temperature sensor signal treatment circuit links to each other with controller; Electrically heated rod 5 is connected with heating control circuit, and heating control circuit is connected with the control signal output of controller; Control module 3 also comprises display screen 14, working station indicator and operation keyboard 15; Display screen 14, working station indicator and operation keyboard 15 link to each other with controller through bus respectively; Water temperature in the water tank 2 that display screen 14 collects in order to real-time displays temperature sensor 4; Working station indicator identifies the duty of control module 3 in real time, and operation keyboard 15 is in order to input and design temperature numerical value.The hot water inlet 6 of magnet press 1 is connected to hot water outlet 8 places of water tank 2 through hot-water line 7, and hot-water line 7 is provided with heat-exchanger pump 9; The bypass outlet 10 of magnet press 1 is back to water tank 2 through return duct 11.The bottom of water tank 2 is provided with drainpipe 12, and drainpipe 12 is provided with control valve 13, opens control valve 13 and can emit the water in the water tank 2.
As shown in Figure 2; The sidewall of die cavity 16 is provided with ring-type water-cooling groove 17 and at least one spiral water-cooling groove 18; The outlet of ring-type water-cooling groove 17 is communicated with the inlet of spiral water-cooling groove 18, and the inlet of ring-type water-cooling groove 17 links to each other with hot-water line 7, and the outlet of spiral water-cooling groove 18 links to each other with return duct 11.
Drawing method between a kind of bonded magnet temperature, it may further comprise the steps:
S1: foundation " the softening point temperature value of magnet compacting bonding agent " database also is stored in the memory;
S2: the water temperature that temperature sensor 4 is gathered in the water tank 2;
S3: controller is compared the softening point temperature value of magnet compacting bonding agent in water temperature value that collects and the database, comparison result is converted into the control instruction of electric heater 5;
S4: controller issues control instruction to electric heater 5, and control electric heater 5 is carried out corresponding heating operation, makes the constant softening point temperature value that is controlled at magnet compacting bonding agent of water temperature in the water tank 2.
It comprises that also a heat-exchanger pump 9 is controlled at magnet with temperature constant in the water tank 2 and suppresses the water of bonding agent softening point temperature value is delivered to the hot water inlet 6 of magnet press 1 through hot-water line 7 step; After the hot water that reaches the softening point temperature value of magnet compacting bonding agent gets into ring-type water-cooling groove 17; Flow in the spiral water-cooling groove 18; Water with heating circulates in the die cavity 16 of magnet compacting; Let the temperature all-the-time stable of die cavity 16 at the softening point temperature of magnet compacting bonding agent, reach preset pressing result.
It also comprises step and a step that shows water temperature in the water tank 2 in real time of real-time indicative control unit 3 duties.
Claims (9)
1. compact system between a bonded magnet temperature; The die cavity (16) that is used to magnet press (1) provides compacting required constant temperature; It is characterized in that: it comprises water tank (2) and control module (3), is provided with temperature sensor (4) and electric heater (5) in the water tank (2), and control module (3) comprises controller, heating control circuit and temperature sensor signal treatment circuit; Temperature sensor (4) is connected with the temperature sensor signal treatment circuit; The temperature sensor signal treatment circuit links to each other with controller, and electric heater (5) is connected with heating control circuit, and heating control circuit is connected with the control signal output of controller;
The hot water inlet (6) of magnet press (1) locates through the hot water outlet (8) that hot-water line (7) is connected to water tank (2), and hot-water line (7) is provided with heat-exchanger pump (9); The bypass outlet (10) of magnet press (1) is back to water tank (2) through return duct (11).
2. compact system between a kind of bonded magnet temperature according to claim 1; It is characterized in that: the sidewall of described die cavity (16) is provided with ring-type water-cooling groove (17) and at least one spiral water-cooling groove (18); The outlet of ring-type water-cooling groove (17) is communicated with the inlet of spiral water-cooling groove (18); The inlet of ring-type water-cooling groove (17) links to each other with hot-water line (7), and the outlet of spiral water-cooling groove (18) links to each other with return duct (11).
3. compact system between a kind of bonded magnet temperature according to claim 1 is characterized in that: described electric heater (5) is an electrically heated rod.
4. compact system between a kind of bonded magnet temperature according to claim 1 is characterized in that: the water temperature that described electric heater (5) adds in the thermal control water tank (2) is a constant temperature, and this thermostat temperature is the softening point temperature of magnet compacting bonding agent.
5. compact system between a kind of bonded magnet temperature according to claim 1 is characterized in that: the bottom of described water tank (2) is provided with drainpipe (12), and drainpipe (12) is provided with control valve (13).
6. compact system between a kind of bonded magnet temperature according to claim 1; It is characterized in that: described control module (3) also comprises display screen (14), working station indicator and operation keyboard (15), and display screen (14), working station indicator and operation keyboard (15) link to each other with controller through bus respectively.
7. drawing method between a bonded magnet temperature, it is characterized in that: it may further comprise the steps:
S1: foundation " the softening point temperature value of magnet compacting bonding agent " database also is stored in the memory;
S2: temperature sensor (4) is gathered the water temperature in the water tank (2);
S3: controller is compared the softening point temperature value of magnet compacting bonding agent in water temperature value that collects and the database, comparison result is converted into the control instruction of electric heater (5);
S4: controller issues control instruction to electric heater (5), and control electric heater (5) is carried out corresponding heating operation, makes the constant softening point temperature value that is controlled at magnet compacting bonding agent of water temperature in the water tank (2).
8. drawing method between a kind of bonded magnet temperature according to claim 7 is characterized in that: it comprises that also a heat-exchanger pump (9) is controlled at magnet with the interior temperature constant of water tank (2) and suppresses the water of bonding agent softening point temperature value is delivered to the hot water inlet (6) of magnet press (1) through hot-water line (7) step.
9. drawing method between a kind of bonded magnet temperature according to claim 7 is characterized in that: it also comprises step and a step that shows the interior water temperature of water tank (2) in real time of a real-time indicative control unit (3) duty.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210332925.7A CN102784914B (en) | 2012-09-11 | 2012-09-11 | Inter-temperature pressing system and method for adhering magnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210332925.7A CN102784914B (en) | 2012-09-11 | 2012-09-11 | Inter-temperature pressing system and method for adhering magnet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102784914A true CN102784914A (en) | 2012-11-21 |
| CN102784914B CN102784914B (en) | 2015-05-20 |
Family
ID=47150611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210332925.7A Expired - Fee Related CN102784914B (en) | 2012-09-11 | 2012-09-11 | Inter-temperature pressing system and method for adhering magnet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102784914B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115206666A (en) * | 2022-09-16 | 2022-10-18 | 成都图南电子有限公司 | High-density bonded rare earth permanent magnet and preparation method thereof |
| CN116203122A (en) * | 2023-05-06 | 2023-06-02 | 成都图南电子有限公司 | Magnet structure defect detection device |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08167513A (en) * | 1994-12-15 | 1996-06-25 | Sumitomo Metal Ind Ltd | Bonded permanent magnet |
| JP2000199002A (en) * | 1998-11-05 | 2000-07-18 | Kobe Steel Ltd | Compacting method of powder for powder metallurgical processing |
| CN101013327A (en) * | 2007-02-07 | 2007-08-08 | 李小卿 | Automatic temperature control apparatus of mould |
| CN101079344A (en) * | 2006-05-23 | 2007-11-28 | 漯河三友电子科技有限公司 | A temperature-voltage high Hcj anisotropic Nd-Fe-Br felt magnet and its making method |
| CN101905322A (en) * | 2010-07-23 | 2010-12-08 | 华南理工大学 | Method and device for pressing and forming powder at high temperature and high speed in vacuum |
| CN102023658A (en) * | 2010-12-09 | 2011-04-20 | 东莞市泰格冷热设备有限公司 | Temperature controller of die |
| CN201816235U (en) * | 2010-09-21 | 2011-05-04 | 徐年荣 | Straw forming temperature control device |
| CN201940604U (en) * | 2011-02-17 | 2011-08-24 | 成都图南电子有限公司 | Female die with spiral water cooling groove |
| CN202763036U (en) * | 2012-09-11 | 2013-03-06 | 成都图南电子有限公司 | Temperature-control press forming system for bonding magnetic body |
-
2012
- 2012-09-11 CN CN201210332925.7A patent/CN102784914B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08167513A (en) * | 1994-12-15 | 1996-06-25 | Sumitomo Metal Ind Ltd | Bonded permanent magnet |
| JP2000199002A (en) * | 1998-11-05 | 2000-07-18 | Kobe Steel Ltd | Compacting method of powder for powder metallurgical processing |
| CN101079344A (en) * | 2006-05-23 | 2007-11-28 | 漯河三友电子科技有限公司 | A temperature-voltage high Hcj anisotropic Nd-Fe-Br felt magnet and its making method |
| CN101013327A (en) * | 2007-02-07 | 2007-08-08 | 李小卿 | Automatic temperature control apparatus of mould |
| CN101905322A (en) * | 2010-07-23 | 2010-12-08 | 华南理工大学 | Method and device for pressing and forming powder at high temperature and high speed in vacuum |
| CN201816235U (en) * | 2010-09-21 | 2011-05-04 | 徐年荣 | Straw forming temperature control device |
| CN102023658A (en) * | 2010-12-09 | 2011-04-20 | 东莞市泰格冷热设备有限公司 | Temperature controller of die |
| CN201940604U (en) * | 2011-02-17 | 2011-08-24 | 成都图南电子有限公司 | Female die with spiral water cooling groove |
| CN202763036U (en) * | 2012-09-11 | 2013-03-06 | 成都图南电子有限公司 | Temperature-control press forming system for bonding magnetic body |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115206666A (en) * | 2022-09-16 | 2022-10-18 | 成都图南电子有限公司 | High-density bonded rare earth permanent magnet and preparation method thereof |
| CN116203122A (en) * | 2023-05-06 | 2023-06-02 | 成都图南电子有限公司 | Magnet structure defect detection device |
| CN116203122B (en) * | 2023-05-06 | 2023-06-30 | 成都图南电子有限公司 | Magnet structure defect detection device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102784914B (en) | 2015-05-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109970326B (en) | Intelligent temperature control die for 3C component hot bending and control method thereof | |
| CN203190623U (en) | Water heater with double heat sources and warming function | |
| CN106711548A (en) | Power battery air heat management system for pure electric vehicle and operating method of system | |
| CN201224713Y (en) | Heating and cooling integrated apparatus for charging mould | |
| CN102784914A (en) | Inter-temperature pressing system and method for adhering magnet | |
| CN102878704B (en) | Detection and control system of solar collector | |
| CN202763036U (en) | Temperature-control press forming system for bonding magnetic body | |
| CN102005861B (en) | Circulating cooling device for wind power double-fed power generator | |
| CN104633951A (en) | Environment-friendly water heater | |
| CN201488238U (en) | Electric heater | |
| CN201893657U (en) | Circulation cooling device for wind power double-fed generator | |
| CN101639284A (en) | Electric heater | |
| CN201335456Y (en) | Water-medium electric heater | |
| CN207778803U (en) | A kind of Full automatic heat conductive oil electric boiler control device | |
| CN209130991U (en) | A kind of Electric radiator | |
| CN202570170U (en) | Lubricating grease reaction device | |
| CN202792628U (en) | Test and control system of solar energy gather device | |
| CN202221151U (en) | Efficient refrigerant gas heater | |
| CN206480729U (en) | A kind of power battery of pure electric automobile air hot pipe manages system | |
| CN201488246U (en) | Commercial instant-boiling high-flow electromagnetic induction water boiler | |
| CN205824277U (en) | A kind of big-power transducer temperature control valve block of cooling system | |
| CN201159526Y (en) | Silicon nitride heating type water heater | |
| CN202885267U (en) | Instant electric water heater provided with self-adaptive flow control device | |
| CN204329297U (en) | Fluid-guiding type constent temperature heater | |
| CN109059096A (en) | A kind of accurate heating system of electric boiler and method based on the reconciliation of two-tube channel temp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150520 Termination date: 20170911 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |