CN201625772U - Flake ingot casting furnace - Google Patents
Flake ingot casting furnace Download PDFInfo
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- CN201625772U CN201625772U CN2010200467618U CN201020046761U CN201625772U CN 201625772 U CN201625772 U CN 201625772U CN 2010200467618 U CN2010200467618 U CN 2010200467618U CN 201020046761 U CN201020046761 U CN 201020046761U CN 201625772 U CN201625772 U CN 201625772U
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- scale ingot
- ploughshare
- ingot furnace
- cooler pan
- scale
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Abstract
The utility model provides a flake ingot casting furnace, which comprises a vacuum system, an induction crucible, a water-cooling roller, a cooling pan and fans. Two fans with heat exchangers are respectively arranged on two sides of the cooling pan; and the fans and the heat exchangers are arranged on the outer side of a furnace body and integrally connected with the furnace body through air inlet pipes and air outlet pipes. The flake ingot casting furnace can timely and highly efficiently cool flake ingots, lead the magnetic performance of the flake ingots to obtain higher stability and uniformity from the beginning to the end of casting, and simultaneously can shorten cooling time and improve production efficiency.
Description
Technical field
The utility model relates to a kind of scale ingot furnace.
Background technology
From nineteen sixties, rare earth permanent-magnetic material has experienced 1: 5 type SmCo series, 2: 17 type SmCo series and the serial three generations's of NdFeB type evolution.The NdFeB rare earth permanent-magnetic material of high-performance and high HCJ is described as " permanent magnetism king ", it uses very extensive in national economy, from basic industries, to high-tech industry, all obtained using widely, improved the development in science and technology level of a country greatly, the output of rare earth permanent-magnetic material and level can be weighed the development level and the economic strength of a country from a side.In field that its is used such as motor, generator, CD-ROM drive motor or the like field also driven revolutionary development, directly caused the application of wideling popularize of electric bicycle and electric automobile.In addition, use the NdFeB rare earth permanent-magnetic material, the weight and volume of rare earth permanent-magnetic material is other permanent-magnet materials on year-on-year basis, and weight and volume has reduced a lot, simultaneously also reduce the weight and volume of motor, generator, CD-ROM drive motor, expanded their application greatly.And high-performance and high HCJ in order to improve the NdFeB rare earth permanent-magnetic material, must promote the growth and refinement mutually of rich neodymium and evenly distribution of crystal grain, the scale casting technique can guarantee the growth and refinement mutually of rich neodymium and evenly distribution of crystal grain better, improves the performance of product.But the performance of scale ingot casting is still waiting to improve in the stability and the uniformity at the casting whole story.
The utility model content
The purpose of this utility model is to provide a kind of scale ingot furnace, and described scale ingot furnace comprises vacuum system, inductive crucible, water cooled rolls, cooler pan and blower fan, wherein:
The both sides of described cooler pan respectively are provided with the blower fan of two heat exchangers, and described blower fan and heat exchanger are arranged on the body of heater outside, link together by blast pipe and discharge pipe and body of heater.
Preferably, described vacuum system is made up of mechanical pump and lobe pump, and described mechanical pump is a fore pump, and described lobe pump is a two stage pump.
Preferably, described inductive crucible is used for NdFeB rare earth alloy prescription eddy-current heating.
Preferably, described water cooled rolls is positioned at the below of described inductive crucible, and is driven by the adjustable speed reducing motor.
Preferably, described cooler pan is a disc, is provided with ploughshare in it, and is driven by the adjustable speed reducing motor.
Preferably, described blast pipe and discharge pipe are provided with the ploughshare support.
Preferably, the height of described ploughshare is a little more than the aqueous cold plate baseplane, the direction of ploughshare head and the direction of rotation of aqueous cold plate.
Preferably, the number of described ploughshare is an even-multiple, and the center of circle of every pair of described relatively cooler pan of ploughshare becomes asymmetric layout.
Scale ingot furnace provided by the utility model the cooler pan of the liquid cools of providing also is provided and gas-cooled blower fan is provided except having water cooled rolls, can guarantee that like this scale ingot casting obtains in time, cooling efficiently.Fig. 4 and Fig. 5 show the demagnetizing curve of the prepared scale ingot casting of the scale ingot furnace of prior art and scale ingot furnace provided by the utility model respectively, wherein use same process that the alloy of same recipe is carried out melting, and the specification of the scale ingot casting of being cast is identical.By Fig. 4 and Fig. 5 as can be seen, the prepared remanent magnetism of scale ingot casting before demagnetization of the scale ingot furnace of prior art is that 14.1KGs, HCJ are 16.8Koe, and the remanent magnetism after the demagnetization is that 13.7KGs, HCJ are 14.7Koe; The prepared remanent magnetism of scale ingot casting before demagnetization of scale ingot furnace provided by the utility model is that 14.1KGs, HCJ are 16.6Koe, and the remanent magnetism after the demagnetization is that 13.9KGs, HCJ are 15.8Koe.Hence one can see that, and the magnetic property of the scale ingot casting that scale ingot furnace of the present utility model is prepared distributes narrower, and uniformity is better, and performance is also higher.Just because of the scale ingot casting having been carried out in time, having cooled off efficiently, therefore make the magnetic property of scale ingot casting have higher stability and uniformity the whole story in casting, promote the growth of crystal grain in the scale ingot casting and the refinement and the evenly distribution of rich neodymium phase, improved the magnetic property of product.
Table 1 has been listed scale ingot casting in the scale ingot furnace of scale ingot furnace of the present utility model and prior art in the temperature of different cool times.Usually, the tapping temperature of scale ingot casting is 60 ℃, as can be seen from Table 1, the scale ingot furnace of prior art needed 3 hours the temperature of scale ingot casting could be cooled to 60 ℃, and scale ingot furnace provided by the utility model only needed 2.5 hours just the temperature of scale ingot casting can be cooled to 60 ℃.That is to say that with respect to prior art, scale ingot furnace provided by the utility model has been saved the production time, has higher production efficiency, thereby has reduced cost.
Description of drawings
Fig. 1 is the structural representation of scale ingot furnace of the present utility model;
Fig. 2 a is the metallograph of the prepared scale ingot casting of the scale ingot furnace of prior art;
Fig. 2 b is the metallograph of the prepared scale ingot casting of scale ingot furnace of the present utility model;
Fig. 3 a is the demagnetizing curve of the prepared scale ingot casting of the scale ingot furnace of prior art;
Fig. 3 b is the demagnetizing curve of the prepared scale ingot casting of scale ingot furnace of the present utility model.
Description of reference numerals is as follows:
Inductive crucible 1, water cooled rolls 2, ploughshare support 3, cooler pan 4, ploughshare 5, blower fan 6.
The specific embodiment
For making your auditor can further understand structure of the present utility model, feature and other purposes, now be described in detail as follows in conjunction with appended preferred embodiment, illustrated preferred embodiment only is used to illustrate the technical solution of the utility model, and non-limiting the utility model.
As shown in Figure 1, Fig. 1 is the structural representation of scale ingot furnace of the present utility model.As seen from Figure 1, scale ingot furnace provided by the utility model comprises that the scale ingot furnace comprises vacuum system, inductive crucible 1, water cooled rolls 2, cooler pan 4 and has the blower fan 6 of heat exchanger.Wherein, inductive crucible 1 is used for NdFeB rare earth alloy prescription eddy-current heating, and water cooled rolls 2 is positioned at the side-lower of inductive crucible 1.The vacuum system of scale ingot furnace comprises mechanical pump and lobe pump, and wherein mechanical pump is a fore pump, and lobe pump is a two stage pump.
The important difference of the scale ingot furnace of scale ingot furnace of the present utility model and prior art is: scale ingot furnace of the present utility model has cooler pan 4 and blower fan 6.Wherein, this cooler pan 4 can have shallow slot structure, is arranged on the below of water cooled rolls 2, is provided with ploughshare 5 in it, and cooler pan 4 is connected with transmission device.This cooler pan 4 preferably has certain degree of depth, so that can hold the cooling medium of capacity.The both sides of described cooler pan 4 respectively are provided with the blower fan of two heat exchangers, and described blower fan and heat exchanger are arranged on the body of heater outside, link together by blast pipe and discharge pipe and body of heater
How briefly describe scale ingot furnace of the present utility model below cools off the scale ingot casting.According to prescription a certain amount of alloy is joined in the inductive crucible 1, use suitable technology slightly to refine and refining then.After melting finished, with the certain angle of inductive crucible 1 inclination, alloy liquid flowed out from inductive crucible 1, and flows on the water cooled rolls 2.2 pairs of alloy liquid of water cooled rolls tentatively cool off, and make it be cooled to the scale ingot casting of solid state by liquid condition, and the scale ingot casting of this moment has higher temperature.For thickness and the quality of controlling the scale ingot casting, water cooled rolls 2 preferably is connected with the adjustable speed reducing motor, so just thickness and the quality that can regulate the scale ingot casting by the rotating speed of adjusting reducing motor.The scale ingot casting to cooler pan 4 motions, meanwhile, starts cooler pan 4 that has been full of cooling medium and the blower fan 6 that has heat exchanger through water cooled rolls 2 subsequently, and the cooling medium in the cooler pan 4 is preferably water.Wherein, cooler pan 4 rotates under the drive of drive unit, and ploughshare 5 maintains static.After the scale ingot casting was fallen on the cooler pan 4, the scale ingot casting rotated with cooler pan 4, and fixed ploughshare 5 has played the effect of stirring, and the scale ingot casting is cooled off better.Simultaneously, from the mouth of pipe ejection cold air of the discharge pipe of blower fan 6, this cold air is cooled off the scale ingot casting.Between cold air and scale ingot casting heat exchange takes place like this, consequently the temperature of scale ingot casting reduces, and the temperature of cold air raises and becomes hot gas.This hot gas is inhaled into the blower fan 6 from the mouth of pipe of the blast pipe of blower fan 6, and is cooled to cold air again by the heat exchanger that is arranged on the blower fan 6, and this cold air is once more from the mouth of pipe ejection of the discharge pipe of blower fan 6 then.So far, the gas that is used to cool off the scale ingot casting has been finished a circulation, just by this circulation, in the cooling procedure of scale ingot casting, provides cold air for the scale ingot casting incessantly.Like this, in scale ingot furnace of the present utility model, utilize cooling medium and cold air that the scale ingot casting is cooled off simultaneously, accelerated the cooling velocity of scale ingot casting widely.(for example 60 ℃) just can leave the scale ingot furnace treat temperature that the scale ingot casting is cooled to stipulate in cooler pan 4 after.
Cooler pan 4 in the scale ingot furnace of the present utility model is mainly used in and holds cooling medium, and for the cooling of scale ingot casting provides corresponding space and environment, so cooler pan 4 can be the container parts of arbitrary shape.Because cooler pan 4 will rotate under the drive of transmission device, so cooler pan 4 is preferably circular.The drive unit that drive cooler pan 4 rotates can be a motor.But rotating speed of motor is very high, and when cooler pan 4 high speed rotating, the cooling medium that is contained in wherein is easy to overflow, thereby influences the cooling of scale ingot casting.Therefore, cooler pan 4 preferably is connected with reducing motor.
In the cooling medium in being contained in cooler pan 4, the temperature of the cooling medium of the most close scale ingot casting is the highest, and from the distance of scale ingot casting cooling medium far away more, its temperature is low more.When the temperature difference between scale ingot casting and the cooling medium was big more, the cooling velocity of scale ingot casting was fast more.Therefore the cooling medium in the cooler pan 4 is fully mixed, to strengthen the temperature difference between scale ingot casting and the cooling medium.Because 5 pairs of cooling mediums of ploughshare have stirring action, therefore cooling medium is fully mixed, thereby the scale ingot casting is cooled off better.As of the present utility model preferred embodiment a kind of, in cooler pan 4, be provided with at least one pair of ploughshare 5, and the every pair of ploughshare 5 is asymmetric distribution with respect to the center (when cooler pan 4 is circle, being the center of circle) of cooler pan 4.Be provided with and manyly can stir the cooling medium at diverse location places in the cooler pan 4 simultaneously, thereby obtain better mixing effect ploughshare 5.
In scale ingot furnace of the present utility model, ploughshare 5 is arranged in the cooler pan 4.For the ease of the setting of ploughshare 5, above cooler pan 4, be provided with ploughshare support 3, the afterbody of ploughshare 5 is fixed on the ploughshare support 3, and the head of ploughshare 5 extend into downwards in the cooler pan 4.Wherein, the distance between ploughshare support 3 and the cooler pan 4 is set according to the length of ploughshare 5, if employed ploughshare 5 is longer, ploughshare support 3 should be arranged on from cooler pan 4 position far away; If employed ploughshare 5 is shorter, ploughshare support 3 should be arranged on from the nearer position of cooler pan 4.As a kind of embodiment of the present utility model, ploughshare support 3 can be set in place on the discharge pipe in the scale ingot furnace, for example the two ends with ploughshare support 3 are separately fixed on two discharge pipes.
In order to strengthen the mixing effect of ploughshare 5, ploughshare 5 preferably is deep in the cooler pan 4 as much as possible, that is to say, the head of ploughshare 5 gets final product a little more than the baseplane of cooler pan 4.Therefore as of the present utility model preferred embodiment a kind of, the distance of the baseplane of the head of ploughshare 5 and cooler pan 4 is less than the length of the head of ploughshare 5, and the head of ploughshare 5 does not contact with the baseplane of cooler pan 4, to avoid when cooler pan 4 rotates, producing friction between the head of cooler pan 4 and ploughshare 5.
The shape of the head of ploughshare 5 (particularly acute triangle) triangular in shape usually, it has a sharp tip, and widens thickening gradually from this tip backward.In the utility model, the direction of the head of ploughshare 5 is meant the direction at the tip of its head.As of the present utility model preferred embodiment a kind of, the direction of rotation of the direction of the head of ploughshare 5 and cooler pan 4 that is to say that the direction of head of ploughshare 5 is opposite with the direction of motion of cooling medium.Flow through the tip of head of ploughshare 5 when cooling medium after, can with the tip after widen thickening part collide, thereby obtain better mixing effect, cooling medium is mixed fully.
Below the cooling performance of the scale ingot furnace of scale ingot furnace of the present utility model and prior art is tested.Use the raw material of same recipe to carry out melting with identical technology, then the scale ingot casting is cooled off, take out the scale ingot casting at different time points, and the temperature of scale ingot casting is measured, result of the test is as shown in table 1.
Scale ingot casting in the scale ingot furnace of table 1 scale ingot furnace of the present utility model and prior art is in the temperature of different cool times
| Time min | 130 | 140 | 150 | 160 | 170 | 180 |
| Scale ingot furnace of the present utility model | 95℃ | 78℃ | 60℃ | 56℃ | 53℃ | 49℃ |
| The scale ingot furnace of prior art | 172℃ | 145℃ | 123℃ | 104℃ | 81℃ | 60℃ |
As can be seen from Table 1, under cool time identical situation, the temperature of the scale ingot casting of the temperature of the scale ingot casting in the scale ingot furnace of the present utility model in the scale ingot furnace of prior art.Generally, can come out of the stove after the temperature of scale ingot casting is cooled to 60 ℃, the scale ingot casting only needs cooling just can satisfy this requirement in 2.5 hours in scale ingot furnace of the present utility model, and needs to cool off 3 hours in the scale ingot furnace in the prior art.Therefore, use scale ingot furnace of the present utility model to shorten the production time, enhance productivity.What need statement is that the above-mentioned utility model content and the specific embodiment are intended to prove the practical application of technical scheme that the utility model provides, and should not be construed as the qualification to the utility model protection domain.Those skilled in the art are in spirit of the present utility model and principle, when doing various modifications, being equal to and replacing or improve.Protection domain of the present utility model is as the criterion with appended claims.
Claims (7)
1. a scale ingot furnace is characterized in that, described scale ingot furnace comprises vacuum system, inductive crucible (1), water cooled rolls (2), cooler pan (4) and blower fan (6), wherein:
The both sides of described cooler pan (4) respectively are provided with the blower fan of two heat exchangers, and described blower fan and heat exchanger are arranged on the body of heater outside, link together by blast pipe and discharge pipe and body of heater.
2. scale ingot furnace according to claim 1 is characterized in that described vacuum system is made up of mechanical pump and lobe pump, and described mechanical pump is a fore pump, and described lobe pump is a two stage pump.
3. scale ingot furnace according to claim 1 is characterized in that, described water cooled rolls (2) is positioned at the below of described inductive crucible (1), and is driven by the adjustable speed reducing motor.
4. scale ingot furnace according to claim 1 is characterized in that, described cooler pan (4) is a disc, is provided with ploughshare (5) in it, and is driven by the adjustable speed reducing motor.
5. scale ingot furnace according to claim 1 is characterized in that described blast pipe and discharge pipe are provided with the ploughshare support.
6. according to claim 1 or 4 described scale ingot furnaces, it is characterized in that the height of described ploughshare (5) is higher than aqueous cold plate (4) baseplane, the direction of ploughshare (5) head and the direction of rotation of aqueous cold plate (4).
7. scale ingot furnace according to claim 6 is characterized in that, the number of described ploughshare is an even-multiple, and the center of circle of every pair of described relatively cooler pan of ploughshare (4) becomes asymmetric layout.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200467618U CN201625772U (en) | 2010-01-05 | 2010-01-05 | Flake ingot casting furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200467618U CN201625772U (en) | 2010-01-05 | 2010-01-05 | Flake ingot casting furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201625772U true CN201625772U (en) | 2010-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010200467618U Expired - Fee Related CN201625772U (en) | 2010-01-05 | 2010-01-05 | Flake ingot casting furnace |
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| CN (1) | CN201625772U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105312102A (en) * | 2015-10-18 | 2016-02-10 | 常州大学 | High-temperature crucible single-mode translation cooling serial equipment |
| CN105312104A (en) * | 2015-10-18 | 2016-02-10 | 常州大学 | High-temperature crucible parallel mode rotating cooling simple equipment |
| CN105312111A (en) * | 2015-10-21 | 2016-02-10 | 常州大学 | High-temperature crucible parallel mode rotating cooling parallel equipment |
| CN105312103A (en) * | 2015-10-18 | 2016-02-10 | 常州大学 | High-temperature crucible parallel mode translation cooling serial equipment |
| CN105312107A (en) * | 2015-10-18 | 2016-02-10 | 常州大学 | High-temperature crucible single-mode rotating cooling simple equipment |
| CN105312109A (en) * | 2015-10-19 | 2016-02-10 | 常州大学 | High-temperature crucible parallel mode rotating cooling serial equipment |
-
2010
- 2010-01-05 CN CN2010200467618U patent/CN201625772U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105312102A (en) * | 2015-10-18 | 2016-02-10 | 常州大学 | High-temperature crucible single-mode translation cooling serial equipment |
| CN105312104A (en) * | 2015-10-18 | 2016-02-10 | 常州大学 | High-temperature crucible parallel mode rotating cooling simple equipment |
| CN105312103A (en) * | 2015-10-18 | 2016-02-10 | 常州大学 | High-temperature crucible parallel mode translation cooling serial equipment |
| CN105312107A (en) * | 2015-10-18 | 2016-02-10 | 常州大学 | High-temperature crucible single-mode rotating cooling simple equipment |
| CN105312109A (en) * | 2015-10-19 | 2016-02-10 | 常州大学 | High-temperature crucible parallel mode rotating cooling serial equipment |
| CN105312111A (en) * | 2015-10-21 | 2016-02-10 | 常州大学 | High-temperature crucible parallel mode rotating cooling parallel equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101110 Termination date: 20180105 |