CN211404281U - Be used for heavy tombarthite grain boundary infiltration pretreatment device - Google Patents
Be used for heavy tombarthite grain boundary infiltration pretreatment device Download PDFInfo
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- CN211404281U CN211404281U CN202020351228.6U CN202020351228U CN211404281U CN 211404281 U CN211404281 U CN 211404281U CN 202020351228 U CN202020351228 U CN 202020351228U CN 211404281 U CN211404281 U CN 211404281U
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Abstract
The utility model discloses a be used for preceding processing apparatus of heavy tombarthite grain boundary infiltration, including rotatable single cantilever, set up can reach horizontal migration's electric block, steam generator, boiling on rotatable single cantilever, boil material room, metal charging basket, hang the work or material rest, steam generator and boiling boil through steam piping connection between the material room, are provided with air stirring device on the lower part that the material room was boiled in the boiling. The utility model has the advantages of simple design, reasonable in design, steam generator and the boiling through setting up boil the cooperation of material room, realize that steam boils the material, heat-conduction is efficient, boils the material effectual.
Description
Technical Field
The utility model belongs to the technical field of heavy tombarthite grain boundary infiltration, concretely relates to be used for preceding processing apparatus of heavy tombarthite grain boundary infiltration, the quick glue deoiling that removes on the sintered neodymium iron boron magnet surface of specially adapted preparation for carrying out the infiltration of heavy tombarthite grain boundary also can be used for the batch of the sintered neodymium iron boron magnet after section, wire-electrode cutting or the multi-thread cutting to remove glue the deoiling fast, is fit for being used for processing aftertreatment, electroplating pretreatment, viscose bonding pretreatment or the preceding processing of grain boundary infiltration of batch volume production magnet.
Background
With the increasingly mature application of the sintered NdFeB grain boundary infiltration process, the grain boundary infiltration has higher requirement on the cleanliness of the surface of the sintered NdFeB magnet, if the surface has oil stains, the grain boundary infiltration effect can be seriously influenced, the traditional stainless steel heating tank is adopted for heating and boiling the materials, the temperature rising speed is slow, the heat conduction effect is poor, the magnets are stacked in the tank, if the magnets are not turned frequently, due to uneven heating, instantaneous drying agents such as shellac and the like on part of products fall off, and part of shellac and the like still overlap together and do not fall off, so the material boiling time has to be prolonged, and finally, part of the partial surfaces of the products are slightly corroded by alkali liquor, the subsequent grain boundary permeation effect is influenced, and similarly, if the material boiling is carried out in a traditional mode and then electroplating is carried out, the effect after the magnet electroplating is influenced, and the adverse conditions of slight corrosion and hair on the surface of the magnet, poor coating binding force, poor salt spray test and the like are caused.
SUMMERY OF THE UTILITY MODEL
To the problem that exists among the prior art, the utility model aims to provide a preceding processing apparatus that is used for infiltration of heavy tombarthite grain boundary.
The utility model discloses a following technical scheme realizes:
the device is characterized by comprising a rotatable single cantilever support, an electric hoist, a steam generator, a boiling material boiling chamber, a metal material basket and a material hanging frame, wherein the electric hoist, the steam generator, the boiling material boiling chamber, the metal material basket and the material hanging frame are arranged on the support and can move up and down and left and right, the steam generator and the boiling material boiling chamber are connected through a steam pipeline, a switch valve is arranged on the steam pipeline, an air stirring device is arranged on the lower portion of the boiling material boiling chamber, a blow-off valve is arranged at the bottom of the boiling material boiling chamber, a rotary upper cover is arranged at the upper portion of the boiling material boiling chamber, and the material hanging frame is matched with the electric hoist.
The pretreatment device for the permeation of the heavy rare earth grain boundary is characterized in that a plurality of metal charging baskets are arranged, and the plurality of metal charging baskets are stacked up and down in a material hanging frame. The metal charging basket is used as a container for products which are cut in slicing, linear cutting or multi-linear cutting procedures, the products with glue or oil stains are placed, and the products can be directly and layer by layer hung in the hanging frame, so that the time for replacing the container is saved, and the phenomenon that the magnet is unfilled corner due to the replacement of the container is avoided.
The pretreatment device for the grain boundary permeation of the heavy rare earth is characterized in that the air stirring device comprises an air input pipeline, one side of the air input pipeline extends into the boiling material boiling chamber and is provided with a plurality of air nozzles from top to bottom, and the other end of the air input pipeline is connected with an air compressor.
The pretreatment device for the grain boundary permeation of the heavy rare earth is characterized in that the boiling material boiling chamber is also provided with a safety valve and a pressure gauge.
The pretreatment device for the grain boundary permeation of the heavy rare earth is characterized in that the support is a rotatable single cantilever support.
The device is characterized in that the steam generator is a variable-frequency electromagnetic heating steam generator, and an overtemperature and overpressure protection circuit switch and a low-water-level and dry-burning-prevention alarm are arranged on the steam generator. This setting is more intelligent energy-conserving.
The utility model has simple structure design and reasonable design, realizes steam boiling through the matching of the arranged steam generator and the boiling chamber, has high heat conduction efficiency and good boiling effect, avoids the traditional mode of heating and boiling materials by adopting a stainless steel groove with an electric heating pipe, has long boiling time period, has large damage to sintered neodymium iron boron magnet, and is easy to cause the defects of surface corrosion and the like; the air stirring device is arranged to realize air stirring, avoid manual turning over of the magnet, strengthen the heat transfer effect, enable the temperature to be more uniform, accelerate the reaction rate of the alkaline oil stain remover and the instantaneous drying agents such as shellac and the like, and enable the instantaneous drying agents such as shellac and the like adhered to the sintered neodymium iron boron magnet to be softened, separated and dropped more quickly.
Drawings
FIG. 1 is a schematic structural view of the present invention;
in the figure, 1-single cantilever bracket, 2-electric hoist, 3-steam generator, 4-boiling material boiling chamber, 5-metal material basket, 6-material hanging frame, 7-steam pipeline, 8-blow-down valve, 9-rotary upper cover, 10-air input pipeline, 11-safety valve and 12-pressure gauge.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings, and specific embodiments are given.
As shown in fig. 1, the utility model relates to a processing apparatus before heavy tombarthite grain boundary infiltration, including rotatable single cantilever and the electric block that can move about with from top to bottom that sets up on the support, steam generator, boiling boils the material room, a plurality of metal charging baskets, a work or material rest for placing the metal charging basket, relief valve and manometer, steam generator and boiling boil and be connected through steam conduit between the material room, the last switch valve that is provided with of steam conduit, be provided with air stirring device on the lower part of boiling material room, the bottom that the boiling boiled material room was boiled is provided with the blowoff valve, its upper portion is provided with rotatory upper cover, work or material rest and the cooperation of the electric block on the rotatable single cantilever use. Wherein, the air stirring device comprises an air input pipeline, one side of the air input pipeline extends into the boiling material boiling chamber and is provided with a plurality of air nozzles up and down, and the other end of the air input pipeline is connected with an air compressor.
The method for carrying out the heavy rare earth grain boundary infiltration pretreatment by adopting the device comprises the following steps: 1) adding hot water into the steam generator, then opening the steam generator, and starting automatic heating; 2) placing the sintered neodymium-iron-boron magnet subjected to slicing, wire cutting or multi-wire cutting and prepared for heavy rare earth grain boundary infiltration into a metal basket, stacking a plurality of metal baskets into a material hanging frame, and hanging the material hanging frame into a boiling material boiling chamber by using an electric hoist on a rotatable single cantilever bracket; 3) injecting hot water into the boiling material boiling chamber until the hot water submerges the top end of the hanging material rack, adding 0.5-3% of caustic soda flakes or an alkaline oil stain remover, starting an air stirring device, stirring for 1-5 minutes, and ensuring uniform stirring; 4) closing the rotary upper cover, opening a switch valve on the steam pipeline, and introducing steam into the boiling material boiling chamber to boil the materials for 5-10 minutes; when the materials are boiled, the air stirring device is opened, and the air stirring frequency is set to be 1-3 times/minute and the stirring time is set to be 5-10 seconds/time; after the material cooking is finished, stopping stirring the steam and the air, opening the rotary upper cover, and hoisting the material hanging frame out by using an electric hoist on the rotatable single cantilever support; 5) the material hanging frame is hung in hot pure water at 100 ℃ for ultrasonic cleaning for 1-5 minutes, and air can be continuously introduced for stirring while ultrasonic cleaning is carried out, so that alkali liquor and oil stains remained on the surface of the magnet are removed; 6) and taking out the cleaned sintered neodymium-iron-boron magnet, putting the sintered neodymium-iron-boron magnet into a drying tunnel for drying, and putting the sintered neodymium-iron-boron magnet into a clean and dry turnover box to prevent secondary pollution when taking the dried product.
The utility model discloses a boil the indoor steam that lets in of material and boil the material to the boiling, heat-conduction efficiency is high, boils the material effectual, avoids the tradition to adopt the heating that has electric heating pipe's stainless steel groove to boil the material, and the time cycle is long, and is big to the injury of sintering neodymium iron boron magnet. Preferably, the steam can be automatically controlled by a PLC, for example, when automatic stirring is carried out, the steam can be stopped, on one hand, energy can be saved, on the other hand, the ultrahigh pressure in the boiling material cooking chamber can also be avoided, the device is a mature technology, and the specific structure is not described in detail. Because the air stirring is adopted during boiling, the magnet is prevented from being manually turned over, the heat transfer effect is enhanced, the temperature is more uniform, the reaction rate of the alkaline oil stain remover and the instantaneous drying agents such as shellac and the like is accelerated, and the instantaneous drying agents such as shellac and the like adhered to the sintered neodymium iron boron magnet are softened, separated and dropped more quickly. Preferably, the number of stirring times is 2 times/minute and the stirring time is 10 seconds/time.
The utility model discloses an add appropriate amount flake caustic soda or alkaline greasy dirt remover etc. to boiling material indoor, through letting in steam and air stirring, product surface's greasy dirt emulsification is with higher speed, makes the greasy dirt that prepares to carry out heavy rare earth grain boundary infiltration's sintering neodymium iron boron magnet surface thoroughly got rid of fast, does well the surface cleaning work of magnet for follow-up heavy rare earth grain boundary infiltration. Preferably, the volume of the boiling material cooking chamber to the standard liquid level position can be measured, and if the volume is a magnet without drying agents such as shellac and the like, flake caustic soda with the concentration of 0.5-1% or alkaline oil stain removing agents are boiled, the volume can be measured. If the glue is not only adhesive but also greasy dirt, the concentration is properly increased. And putting the boiled sintered neodymium-iron-boron magnet into hot pure water at the temperature of 100 ℃ for ultrasonic cleaning for 1-5 minutes, and simultaneously carrying out continuous air stirring to remove alkali liquor and oil stains remained on the surface of the magnet. Preferably, the hot pure water ultrasonic cleaning tank is designed to be vertical, an ultrasonic generator is hung on four sides, and an air stirring pipeline and a nozzle are arranged. Preferably, the hot pure water which is periodically replaced by ultrasonic cleaning can enter the water storage barrel firstly and then is conveyed into the boiling material boiling chamber for reuse through a centrifugal pump and a pipeline.
The utility model discloses take out the magnet that will wash, put into the drying tunnel and dry to put into clean dry turnover case, prevent secondary pollution. Preferably, the hot pure water ultrasonic cleaning tank can be arranged on the front side of the drying tunnel and is necessarily located in the lifting range of the electric hoist on the rotatable single cantilever support, after ultrasonic cleaning is completed, the electric hoist on the rotatable single cantilever support is used for transferring the material hanging frame out to the side of the working platform in front of the drying tunnel, so that the metal material basket can be taken out and placed on the working platform in front of the drying tunnel, and the magnet can be conveniently taken out to enter the drying tunnel for baking.
The utility model discloses a processing apparatus structure is fairly simple and easy, has the mechanism and the individual who equips the manufacturing capacity slightly and can all carry out the self-control, and touch-sensitive screen and PLC realization automatic control can be adopted to ability, and the adoption manual operation that has nothing condition all can realize. The device's maneuverability is strong, because the material is boiled to the boiling to the indoor steam that lets in of material that boils, and heat-conduction efficiency is high, boils the material effectual, avoids the tradition to adopt the heating of the stainless steel groove that has electric heating pipe to boil the material, and the time cycle is long, and is big to the injury of sintering neodymium iron boron magnet. And because the air stirring is adopted during boiling, the magnet is prevented from being manually turned over, the heat transfer effect is enhanced, the temperature is more uniform, the reaction rate of the caustic soda flakes or the alkaline oil stain remover and the instantaneous drying agent such as shellac and the like is accelerated, and the instantaneous drying agent such as shellac and the like adhered to the sintered neodymium iron boron magnet is softened, separated and dropped more quickly. By introducing steam and air for stirring, the emulsification of the oil stains on the surface of the product is accelerated, so that the oil stains on the surface of the sintered neodymium-iron-boron magnet are quickly and thoroughly removed, and the surface cleaning work of the magnet is well done for the subsequent grain boundary permeation of the heavy rare earth.
The utility model discloses the device not only can be used to prepare the surface degumming deoiling pretreatment of carrying out the sintering neodymium iron boron magnet of heavy tombarthite grain boundary infiltration, also can be used to tradition section, wire-electrode cutting or multi-thread cutting back, among the degumming deoiling treatment of magnet, moreover the utility model discloses a device and technology, the most apparent characteristics are that it is fast to remove gluey deoiling, do not have the injury to the magnet, and water conservation energy-saving environment friendly, do benefit to the processing aftertreatment of batch volume production magnet, electroplating pretreatment, viscose bonding pretreatment or grain boundary infiltration pretreatment, owing to adopted touch-sensitive screen and PLC, the operator standardized operation of being convenient for. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a be used for heavy rare earth grain boundary infiltration pretreatment device, its characterized in that includes rotatable single cantilever support (1), sets up can reach horizontal migration's electric block (2) from top to bottom on rotatable single cantilever support (1), steam generator (3), boiling boil material room (4), metal charging basket (5), hangs work or material rest (6), be connected through steam conduit (7) between steam generator (3) and the boiling boil material room (4), be provided with switch valve on steam conduit (7), be provided with air mixing device on the lower part of boiling boil material room (4), the bottom of boiling boil material room (4) is provided with blowoff valve (8), and its upper portion is provided with rotatory upper cover (9), hang work or material rest (6) and the cooperation of electric block (2) on single cantilever support (1) and use.
2. The pretreatment apparatus for grain boundary infiltration of heavy rare earth according to claim 1, wherein a plurality of said metallic baskets (5) are provided, and a plurality of said metallic baskets (5) are stacked one above another in said cradle (6).
3. The pretreatment device for grain boundary permeation of heavy rare earth as recited in claim 1, wherein said air stirring device comprises an air input pipe (10), one side of said air input pipe (10) is extended into the boiling material chamber (4) and is provided with a plurality of air nozzles above and below, and the other end of said air input pipe (10) is connected with an air compressor.
4. The pretreatment apparatus for grain boundary infiltration of heavy rare earth according to claim 1, wherein the boiling material chamber (4) is further provided with a safety valve (11) and a pressure gauge (12).
5. The pretreatment device for grain boundary infiltration of heavy rare earth according to claim 1, characterized in that the support (1) is a rotatable single cantilever support.
6. The pretreatment device for grain boundary permeation of heavy rare earth according to claim 1, wherein the steam generator is a variable frequency electromagnetic heating steam generator, and an over-temperature and over-pressure protection circuit switch and a low-water level and dry-burning prevention alarm are arranged on the steam generator.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020351228.6U CN211404281U (en) | 2020-03-19 | 2020-03-19 | Be used for heavy tombarthite grain boundary infiltration pretreatment device |
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| CN202020351228.6U CN211404281U (en) | 2020-03-19 | 2020-03-19 | Be used for heavy tombarthite grain boundary infiltration pretreatment device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111161950A (en) * | 2020-03-19 | 2020-05-15 | 浙江凯文磁业有限公司 | Pretreatment device and treatment process for grain boundary permeation of heavy rare earth |
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2020
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111161950A (en) * | 2020-03-19 | 2020-05-15 | 浙江凯文磁业有限公司 | Pretreatment device and treatment process for grain boundary permeation of heavy rare earth |
| CN111161950B (en) * | 2020-03-19 | 2024-05-07 | 浙江凯文磁业有限公司 | Pretreatment device and treatment process for heavy rare earth grain boundary permeation |
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