CN112129117A - Sintering temperature control device for processing neodymium iron boron magnet - Google Patents
Sintering temperature control device for processing neodymium iron boron magnet Download PDFInfo
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- CN112129117A CN112129117A CN202010991383.9A CN202010991383A CN112129117A CN 112129117 A CN112129117 A CN 112129117A CN 202010991383 A CN202010991383 A CN 202010991383A CN 112129117 A CN112129117 A CN 112129117A
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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
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
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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
- F27D21/00—Arrangements of monitoring devices; Arrangements of safety devices
- F27D21/04—Arrangements of indicators or alarms
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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
- F27D2019/0003—Monitoring the temperature or a characteristic of the charge and using it as a controlling value
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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
- F27D2019/0031—Regulation through control of the flow of the exhaust gases
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
- F27M2003/00—Type of treatment of the charge
- F27M2003/04—Sintering
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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Abstract
The invention discloses a sintering temperature control device for processing a neodymium iron boron magnet, which comprises a testing mechanism, a control mechanism, a background and a network platform, wherein the control mechanism is connected with the testing mechanism in a wireless way, the testing mechanism is connected with the network platform in a wireless way, the network platform is connected with the background in a wireless way, an air inlet pipe is arranged at the output end of an air suction pump, one end of the air inlet pipe is communicated with the inner cavity of a furnace body, a heat exchange pipe is fixedly arranged in the inner cavity of a box body, the shape of the heat exchange pipe is spiral, so that high-temperature gas in the furnace can be conveyed into the box body through the air inlet pipe by the air suction pump in the process of rapidly cooling the furnace, the high-temperature gas is subjected to waste heat recovery by the heat exchange pipe, the shape of the heat exchange pipe is spiral, the advancing route and the, the waste heat utilization rate is improved, and the resource utilization rate is also improved while the furnace is rapidly cooled by utilizing a waste heat recovery mode.
Description
Technical Field
The invention relates to the technical field of neodymium iron boron magnet processing equipment, in particular to a sintering temperature control device for processing a neodymium iron boron magnet.
Background
The Nd-Fe-B magnet has the features of small size, light weight and strong magnetism, and is the best magnet in performance-price ratio so far. The neodymium iron boron magnet as a third-generation rare earth permanent magnet material has high performance, is widely applied to industries such as energy, transportation, machinery, medical treatment, IT, household appliances and the like, and particularly brings new application to functional materials such as the rare earth permanent magnet neodymium iron boron industry and the like along with the development of knowledge economy represented by information technology, thereby bringing wider market prospect to the neodymium iron boron industry. The neodymium-iron-boron magnet is a tetragonal crystal formed by Qinzhi, Fe and pound (Nd2Fel 4B). In 1982, the neodymium magnet was discovered by a person living in the special metal of Sumitomo. The magnetic energy product of the magnet is larger than that of a cobalt magnet, and the magnet is the substance with the largest magnetic energy product all over the world at that time. Later, Sumitomo developed a successful powder metallurgy process for specialty metals and general automotive companies developed a successful jet smelting process that could produce neodymium-iron-boron magnets. The neodymium iron boron magnet can be divided into bonded neodymium iron boron and sintered neodymium iron boron. The bonding is actually injection molding and the sintering is vacuum-formed by high temperature heating! The ndfeb magnet is the most powerful permanent magnet and the most commonly used rare earth magnet, and is widely used in electronic products, such as hard disks, mobile phones, earphones, and battery-powered tools.
The existing neodymium iron boron magnet is processed, the general sintering temperature is not easy to control, the resource utilization rate is low, and the detection direction of the sensor is relatively fixed.
In order to solve the problems, the sintering temperature control device for processing the neodymium iron boron magnet has the advantages of convenience in control of sintering temperature, high resource utilization rate, adjustability of detection direction of the sensor and the like.
Disclosure of Invention
The invention aims to provide a sintering temperature control device for processing neodymium iron boron magnet, which is characterized in that a Ru ferroboron magnet to be processed is placed in a sintering furnace, a furnace door is closed, a heater is started to electrically heat the Ru ferroboron magnet, pressure, temperature and humidity information in the furnace is transmitted to a display by using a sensor for data display, data information is transmitted to a detector for data detection and analysis, a detection data transmission monitor in the detector is wirelessly monitored in real time by using a wireless mode, data is transmitted to a network platform by using a wireless communication module and then transmitted to a background by using the network platform, when an ideal sintering temperature end point is approached, an acousto-optic alarm is performed to close the heater, cooling equipment is started to rapidly cool the furnace to room temperature, then the cooling equipment is closed and kept constant after the furnace temperature is reached, real-time measurement data are stored by using a memory in the background, and measurement data are respectively and synchronously measured by using a networked printer Printing, it has sintering temperature convenient control, resource utilization is higher and the detection position of sensor is adjustable advantage, can solve the problem that proposes in the above-mentioned background art.
In order to achieve the purpose, the invention provides the following technical scheme: a sintering temperature control device for processing a neodymium iron boron magnet comprises a testing mechanism, a control mechanism, a background and a network platform, wherein the control mechanism is connected with the testing mechanism in a wireless mode;
control mechanism includes fritting furnace and waste heat recovery case, and the fritting furnace comprises furnace gate and furnace body, and one side outer wall border department of furnace body has set firmly cooling blower through hinge swing joint furnace gate, and the inboard central authorities of furnace gate, and the inner chamber of furnace body is close to border department swing joint and has push-and-pull sealing door, and the one end of furnace body is connected with the waste heat recovery case.
Further, the alarm module is used for performing sound-light alarm when the sintering temperature is close to the preset ideal sintering temperature end point, transmitting a signal to the monitoring unit, the output end of the alarm module is connected with the monitoring unit, the monitoring unit is used for transmitting a starting signal to the control mechanism, the heating element is closed, meanwhile, the cooling device is started to rapidly cool the temperature of the furnace body to the room temperature, the cooling device is closed in time after the room temperature is reached, the temperature is kept constant, the indoor sealing is kept, and the alarm module is a sound-light alarm of the model SG-991.
Further, the sensing module includes the rotating electrical machines, bull stick and buckle formula micro cylinder, the top of rotating electrical machines is provided with the pilot lamp, the outer wall surface mounting of rotating electrical machines has temperature display screen, and the output of rotating electrical machines is provided with the bull stick, the bottom of bull stick stretches into in the inner chamber of furnace body, and the bottom of bull stick has cup jointed the fastener sleeve, the joint has buckle formula micro cylinder on the outer wall of one side of fastener sleeve, the bottom of buckle formula micro cylinder is provided with the push rod, and the bottom of push rod installs temperature probe, temperature probe is a type T10S-B-HW's infrared temperature sensor.
Further, the monitoring unit comprises a display module and a detection module, the display module is a monochrome LED display screen with the model phi of 3.75, the detection module is used for detecting and obtaining a sintering temperature curve of the sintering furnace, establishing a data tracking queue corresponding to the neodymium iron boron magnet in the sintering furnace, tracking and counting the sintering state of the neodymium iron boron magnet in the furnace, calculating a predicted value of a sintering end point at a temperature rising position in real time, presetting an ideal sintering end point, calculating an ideal sintering temperature control range of the sintering furnace by combining the predicted value of the sintering end point of the neodymium iron boron magnet at the current temperature rising position, and adjusting the control mechanism and timely controlling the sintering state of the neodymium iron boron magnet according to the ideal sintering temperature control range.
Further, all install electric heating pipe on the both sides inner wall of furnace body, electric heating pipe electric connection monitor unit, and be provided with on the inner chamber bottom surface of furnace body and accept the board, the upper end processing of accepting the board has a plurality of groups to put the silo, and all is provided with between the adjacent silo and separates the bank.
Further, the waste heat recovery box comprises a box body and a heat exchange tube, an air suction pump is installed on the outer wall of one side, close to the furnace body, of the box body, an air inlet tube is arranged at the output end of the air suction pump, one end of the air inlet tube is communicated with the inner cavity of the furnace body, a water inlet tube and a water outlet tube are installed on the outer wall of one side of the box body respectively, the heat exchange tube is fixedly arranged in the inner cavity of the box body, and the heat exchange.
Furthermore, the background comprises a background monitor, a monitoring center, an early warning display and a data acquisition processor, the background monitor comprises a data storage module, a data display unit, a data printing module, an infrared receiving module and a wireless data transmission module, the wireless data transmission module is used for receiving data information sent by the network platform and sending command instruction information to the network platform, and the output ends of the background monitor, the early warning display and the data acquisition processor are all connected with the monitoring center.
Furthermore, the data storage module is used for storing the real-time measurement data by using a memory in the background and transmitting the measurement data to the data printing module, and the output end of the data storage module is connected with the data printing module; and the data printing module is used for synchronously printing the measured data by utilizing the networked printer.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the sintering temperature control device for processing the neodymium iron boron magnet, the temperature in the furnace can be monitored in real time through the monitoring unit during the sintering process of the neodymium iron boron magnet, when the preset ideal sintering temperature end point is approached, the alarm module is used for carrying out sound and light alarm, the heater is turned off, the cooling equipment is started to rapidly cool the furnace to the room temperature, then the cooling equipment is turned off and kept constant after the furnace reaches the room temperature, the sintering temperature range of the neodymium iron boron magnet for a period of time is conveniently controlled and maintained, and the phenomenon that the neodymium iron boron magnet begins to deform, soften and expand due to overburning after the sintering temperature in the furnace is exceeded is avoided.
2. According to the sintering temperature control device for processing the neodymium iron boron magnet, the outer wall of one side, close to the furnace body, of the box body is provided with the air suction pump, the output end of the air suction pump is provided with the air inlet pipe, one end of the air inlet pipe is communicated with the inner cavity of the furnace body, the inner cavity of the box body is fixedly provided with the heat exchange pipe, the heat exchange pipe is spiral in shape, so that high-temperature gas in the furnace can be conveyed into the box body through the air inlet pipe by using the air suction pump in the process of rapidly cooling the furnace, the high-temperature gas is subjected to waste heat recovery by using the heat exchange pipe, the heat exchange pipe is spiral in shape, the advancing route and the staying time of the high-temperature gas are timely prolonged through the heat exchange pipe, the heat exchange is sufficient, the waste heat utilization rate is improved.
3. According to the sintering temperature control device for processing the neodymium iron boron magnet, the rotating rod is arranged at the output end of the rotating motor, the bottom end of the rotating rod extends into the inner cavity of the furnace body, the clamping piece sleeve is sleeved at the bottom end of the rotating rod, and the temperature measuring probe is arranged at the bottom end of the push rod, so that when the temperature measuring probe is used for detecting the temperature in the furnace body, the push rod can be driven by the clamping type micro air cylinder to change the vertical position of the temperature measuring probe, the rotating motor is used for driving the rotating rod to conveniently adjust the detection angle of the temperature measuring probe, the temperature monitoring of different positions in the furnace body is facilitated, and the temperature distribution condition in the furnace body can be better known.
4. The invention provides a sintering temperature control device for processing a neodymium iron boron magnet, a background monitor consists of a data storage module, a data display unit, a data printing module, an infrared receiving module and a wireless data transmission module, a memory in a background is firstly utilized to store real-time measurement data, the measured data is transmitted to the data printing module, and then the measured data is synchronously printed by using a networked printer, so that the loss of the sintering temperature measured data during the processing of the neodymium iron boron magnet is avoided, meanwhile, the sintering temperatures for processing the neodymium iron boron magnet are conveniently compared, the optimal sintering temperature for processing the neodymium iron boron magnet is summarized through the comparison of the sintering temperatures for a plurality of times, and the optimal sintering temperature is set as a preset ideal sintering temperature end point when the neodymium iron boron magnet is processed, so that the compactness of the product is improved when the neodymium iron boron magnet is sintered next time.
Drawings
FIG. 1 is a system topology diagram of a sintering temperature control device for processing a neodymium-iron-boron magnet according to the present invention;
FIG. 2 is a block diagram of a system for controlling sintering temperature in the process of processing Nd-Fe-B magnet according to the present invention;
FIG. 3 is a block diagram of a background composition system of the sintering temperature control device for processing the NdFeB magnet according to the invention;
FIG. 4 is a schematic structural diagram of a control mechanism of the sintering temperature control device for processing the NdFeB magnet according to the invention;
FIG. 5 is a structural diagram of the furnace door opening state of the control mechanism of the sintering temperature control device for processing neodymium iron boron magnet according to the present invention;
FIG. 6 is a structural diagram of the internal structure of the control mechanism of the sintering temperature control device for processing the NdFeB magnet according to the invention;
FIG. 7 is a schematic structural diagram of a sensing module of the sintering temperature control device for processing a neodymium-iron-boron magnet according to the present invention;
FIG. 8 is a flow chart of controlling the sintering temperature of the sintering temperature control device for processing the NdFeB magnet according to the present invention;
fig. 9 is a detection flow chart of a detection module of the sintering temperature control device for processing the neodymium-iron-boron magnet.
In the figure: 1. a testing mechanism; 11. an alarm module; 12. a monitoring unit; 121. a display module; 122. a detection module; 13. a sensing module; 131. a rotating electric machine; 1311. an indicator light; 1312. a temperature display screen; 132. a rotating rod; 1321. a clip sleeve; 133. a snap-in micro cylinder; 1331. a push rod; 1332. a temperature measuring probe; 14. a wireless communication module; 2. a control mechanism; 21. sintering furnace; 211. a furnace door; 2111. a cooling fan; 212. a furnace body; 2121. a hinge; 2122. sliding a sealing door; 2123. an electric heating tube; 2124. a bearing plate; 21241. a material placing groove; 21242. blocking the ridge; 22. a waste heat recovery tank; 221. a box body; 2211. an air suction pump; 22111. an air inlet pipe; 2212. a water inlet pipe; 2213. a water outlet pipe; 222. a heat exchange pipe; 3. a background; 301. a background monitor; 3011. a data storage module; 3012. a data display unit; 3013. a data printing module; 3014. an infrared receiving module; 3015. a wireless data transmission module; 302. a monitoring center; 303. an early warning display; 304. a data acquisition processor; 4. a network platform.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, 2, 8 and 9, a sintering temperature control device for processing a neodymium iron boron magnet comprises a testing mechanism 1, a control mechanism 2, a background 3 and a network platform 4, wherein the control mechanism 2 is connected with the testing mechanism 1 in a wireless manner, the testing mechanism 1 is connected with the network platform 4 in a wireless manner, the network platform 4 is connected with the background 3 in a wireless manner, the testing mechanism 1 comprises an alarm module 11, a monitoring unit 12, a sensing module 13 and a wireless communication module 14, the sensing module 13 is connected with the network platform 4 through the wireless communication module 14, and the input end of the monitoring unit 12 is connected with the control mechanism 2; the alarm module 11 is used for giving an audible and visual alarm when the sintering temperature is close to a preset ideal sintering temperature end point, transmitting a signal to the monitoring unit 12, connecting the output end of the alarm module to the monitoring unit 12, transmitting a starting signal to the control mechanism 2 by using the monitoring unit 12, closing the heating element, simultaneously starting the cooling equipment to rapidly cool the temperature of the furnace body 212 to the room temperature, and closing the cooling equipment in time after the room temperature is reached, and keeping the temperature constant and indoor sealing, and the alarm module 11 is an audible and visual alarm of model SG-991; the monitoring unit 12 includes a display module 121 and a detection module 122, the display module 121 is a monochromatic LED display screen with a model of Φ 3.75, and the detection module 122 is configured to detect and obtain a sintering temperature curve of the sintering furnace, establish a data tracking queue corresponding to the ndfeb magnet in the sintering furnace, track and count the sintering state of the ndfeb magnet in the furnace, calculate a predicted value of a sintering end point at a temperature rising position in real time, preset an ideal sintering end point, calculate an ideal sintering temperature control range of the sintering furnace according to the predicted value of the sintering end point of the ndfeb magnet at the temperature rising position, adjust a control mechanism and control the sintering state of the ndfeb magnet in real time according to the ideal sintering temperature control range, the ndfeb magnet can monitor the temperature in the furnace in real time through the monitoring unit 12 during the sintering process, and when the preset ideal sintering temperature end point is approached, utilize alarm module 11 to carry out audible and visual alarm, close the heater and start cooling device and cool off the stove fast to the room temperature, then reach after the room temperature, close cooling device and keep invariable, also conveniently control and maintain the sintering temperature scope of neodymium iron boron magnetism body a period of time, avoid in the stove surpass the sintering temperature after, continue rising temperature, neodymium iron boron magnetism body begins to warp, softens, overburning inflation influences compactness and quality.
Referring to fig. 3, a sintering temperature control device for processing a neodymium iron boron magnet, a background 3 includes a background monitor 301, a monitoring center 302, an early warning display 303 and a data acquisition processor 304, the background monitor 301 is composed of a data storage module 3011, a data display unit 3012, a data printing module 3013, an infrared receiving module 3014 and a wireless data transmission module 3015, the wireless data transmission module 3015 is configured to receive data information sent by a network platform 4 and send command instruction information to the network platform 4 again, and output ends of the background monitor 301, the early warning display 303 and the data acquisition processor 304 are all connected to the monitoring center 302; the data storage module 3011 is configured to store the real-time measurement data by using a memory in the background, and transmit the measurement data to the data printing module 3013, and an output end of the data storage module 3011 is connected to the data printing module 3013; data print module 3013, utilize the networking printer to carry out synchronous printing with measured data respectively, sintering temperature measured data when avoiding neodymium iron boron magnet to add man-hour takes place to lose, also conveniently compare the sintering temperature of neodymium iron boron magnet processing simultaneously, through the comparison of sintering temperature several times, conclude the best sintering temperature of this kind of neodymium iron boron magnet processing, and establish this best sintering temperature as the ideal sintering temperature terminal of predetermineeing when this kind of neodymium iron boron magnet processing, improve the compact performance of product when being convenient for this kind of neodymium iron boron magnet sintering next time.
Referring to fig. 4-6, a sintering temperature control device for processing a neodymium iron boron magnet, wherein a control mechanism 2 comprises a sintering furnace 21 and a waste heat recovery box 22, the sintering furnace 21 comprises a furnace door 211 and a furnace body 212, the edge of the outer wall of one side of the furnace body 212 is movably connected with the furnace door 211 through a hinge 2121, a cooling fan 2111 is fixedly arranged at the center of the inner side of the furnace door 211, a push-pull sealing door 2122 is movably connected to the position, close to the edge, of the inner cavity of the furnace body 212, and one end of the furnace body 212 is connected with the waste heat recovery box; electric heating pipes 2123 are mounted on the inner walls of the two sides of the furnace body 212, the electric heating pipes 2123 are electrically connected with the monitoring unit 12, a bearing plate 2124 is arranged on the bottom surface of the inner cavity of the furnace body 212, a plurality of groups of material accommodating grooves 21241 are processed at the upper end of the bearing plate 2124, and a spacing threshold 21242 is arranged between every two adjacent material accommodating grooves 21241; the waste heat recovery tank 22 comprises a tank body 221 and a heat exchange tube 222, an air suction pump 2211 is installed on the outer wall of one side, close to the furnace body 212, of the tank body 221, an air inlet tube 22111 is arranged at the output end of the air suction pump 2211, one end of the air inlet tube 22111 is communicated with the inner cavity of the furnace body 212, a water inlet tube 2212 and a water outlet tube 2213 are installed on the outer wall of one side of the tank body 221 respectively, the heat exchange tube 222 is fixedly arranged in the inner cavity of the tank body 221, and the heat exchange tube 222 is spiral in shape, so that the advancing route and the retention time of high-temperature gas are prolonged timely through the heat exchange tube 222, heat exchange is sufficient, the waste heat utilization.
Referring to fig. 6-7, a sintering temperature control device for processing a neodymium iron boron magnet, a sensing module 13 includes a rotating electrical machine 131, a rotating rod 132 and a snap-in micro cylinder 133, an indicator 1311 is disposed at the top end of the rotating electrical machine 131, a temperature display screen 1312 is mounted on the outer wall surface of the rotating electrical machine 131, the rotating rod 132 is disposed at the output end of the rotating electrical machine 131, the bottom end of the rotating rod 132 extends into the inner cavity of the furnace body 212, a clip sleeve 1321 is sleeved at the bottom end of the rotating rod 132, the snap-in micro cylinder 133 is clipped on the outer wall of one side of the clip sleeve 1321, a push rod 1331 is disposed at the bottom end of the snap-in micro cylinder 133, a temperature measuring probe 1332 is mounted at the bottom end of the push rod 1331, the temperature measuring probe 1332 is an infrared temperature sensor with a model number of T10S-B-HW, so that the temperature measuring probe 1332 is used to detect the temperature inside the furnace body 212, and the push rod, the rotating rod 132 is driven by the rotating motor 131 to conveniently adjust the detection angle of the temperature measuring probe 1332, so that temperature monitoring of different parts in the middle furnace body 212 is facilitated, and the temperature distribution condition in the middle furnace body 212 can be better known.
The working principle is as follows: the Ru ferroboron magnet to be processed is put into a sintering furnace 21, a furnace door 211 is closed, a heater is started to electrically heat the Ru ferroboron magnet, pressure, temperature and humidity information in the furnace is transmitted to a display by a sensor to be displayed, and the data information is sent to the detector for data detection and analysis, the detected data transmission monitor in the detector is monitored in real time in a wireless mode, the data is sent to the network platform 4 by the wireless communication module 14 and then is transmitted to the background 3 by the network platform 4, when the temperature approaches to the preset ideal sintering temperature end point, the acousto-optic alarm turns off the heater and starts the cooling equipment to rapidly cool the furnace to the room temperature, and then, after the temperature reaches the room temperature, the cooling equipment is closed and kept constant, the real-time measurement data is stored by using a memory in the background 3, and the measurement data is synchronously printed by using a networked printer.
In summary, the following steps: according to the sintering temperature control device for processing the neodymium iron boron magnet, the sensing module 13 is connected with the network platform 4 through the wireless communication module 14, the input end of the monitoring unit 12 is connected with the control mechanism 2, the output end of the rotating motor 131 is provided with the rotating rod 132, the bottom end of the rotating rod 132 extends into the inner cavity of the furnace body 212, the bottom end of the rotating rod 132 is sleeved with the clamping piece sleeve 1321, and the bottom end of the push rod 1331 is provided with the temperature measuring probe 1332, so that when the temperature inside the furnace body 212 is detected by using the temperature measuring probe 1332, the push rod 1331 can be driven by the clamping type micro cylinder 133 to change the vertical direction of the temperature measuring probe 1332, and the rotating motor 131 is used to drive the rotating rod 132 to conveniently adjust the detection angle of the temperature measuring probe 1332, thereby being beneficial to monitoring the temperature of different parts in the furnace body 212 and being capable of better knowing the temperature, the sintering furnace 21 is composed of a furnace door 211 and a furnace body 212, the edge of the outer wall of one side of the furnace body 212 is movably connected with the furnace door 211 through a hinge 2121, the center of the inner side of the furnace door 211 is fixedly provided with a cooling fan 2111, the inner cavity of the furnace body 212 is movably connected with a push-pull sealing door 2122 close to the edge, one end of the furnace body 212 is connected with a waste heat recovery box 22, the outer wall of one side of the box body 221 close to the furnace body 212 is provided with an air suction pump 2211, the output end of the air suction pump 2211 is provided with an air inlet pipe 22111, one end of the air inlet pipe 22111 is communicated with the inner cavity of the furnace body 212, a heat exchange pipe 222 is fixedly arranged in the inner cavity of the box body 221, the heat exchange pipe 222 is spiral, so that in the process of rapidly cooling the furnace, high-temperature gas in the furnace can be conveyed to the box body 221 through the air, the travel route and the retention time of high-temperature gas are timely prolonged through the heat exchange tube 222, heat exchange is sufficient, the waste heat utilization rate is improved, the resource utilization rate is improved while the temperature in the furnace is rapidly reduced by utilizing a waste heat recovery mode, the Ru ferroboron magnet to be processed is placed in the sintering furnace 21, the furnace door 211 is closed, the heater is started to electrically heat the Ru ferroboron magnet, pressure, temperature and humidity information in the furnace is transmitted to the display by utilizing the sensor for data display, the data information is transmitted to the detector for data detection and analysis, the detection data transmission monitor in the detector is wirelessly monitored in real time, the data is transmitted to the network platform 4 by utilizing the wireless communication module 14 and then transmitted to the background 3 by utilizing the network platform 4, when an ideal sintering temperature end point is approached, the acousto-optic alarm is used for closing the heater and the cooling equipment is started to rapidly cool the furnace to the room temperature, then after the temperature reaches the room temperature, the cooling device is closed and kept constant, the sintering temperature range of the neodymium iron boron magnet for a period of time is conveniently controlled and maintained, the phenomenon that the compactness and the quality are influenced by the deformation, the softening and the overburning expansion of the neodymium iron boron magnet when the temperature in the furnace exceeds the sintering temperature is avoided, the real-time measurement data are stored by a memory in the background 3 and are synchronously printed by a networked printer respectively, the loss of the sintering temperature measurement data during the processing of the neodymium iron boron magnet is avoided, meanwhile, the sintering temperatures for processing the neodymium iron boron magnet are conveniently compared, the optimal sintering temperature for processing the neodymium iron boron magnet is summarized through the comparison of the sintering temperatures for a plurality of times, and the optimal sintering temperature is set as a preset ideal sintering temperature end point when the neodymium iron boron magnet is processed, so that the compactness of the product is improved when the neodymium iron boron magnet is sintered next time.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (8)
1. The utility model provides a sintering temperature control device is used in processing of neodymium iron boron magnet, includes accredited testing organization (1), control mechanism (2), backstage (3) and network platform (4), and accredited testing organization (1) is connected through wireless mode in control mechanism (2), and accredited testing organization (1) connects network platform (4) through wireless mode, and backstage (3), its characterized in that are connected through wireless mode in network platform (4): the testing mechanism (1) comprises an alarm module (11), a monitoring unit (12), a sensing module (13) and a wireless communication module (14), the sensing module (13) is connected with the network platform (4) through the wireless communication module (14), and the input end of the monitoring unit (12) is connected with the control mechanism (2);
control mechanism (2) are including fritting furnace (21) and waste heat recovery case (22), fritting furnace (21) comprises furnace gate (211) and furnace body (212), and hinge (2121) swing joint furnace gate (211) are passed through to one side outer wall border department of furnace body (212), and the inboard central authorities of furnace gate (211) have set firmly cooling blower (2111), and the inner chamber of furnace body (212) is close to border department swing joint and has push-and-pull sealing door (2122), and the one end of furnace body (212) is connected with waste heat recovery case (22).
2. The sintering temperature control device for processing the neodymium-iron-boron magnet as claimed in claim 1, wherein: alarm module (11), be used for when sintering temperature is close to presetting ideal sintering temperature terminal point, carry out audible and visual alarm, and give monitoring unit (12) with signal transmission, monitoring unit (12) is connected to its output, and utilize monitoring unit (12) transmission actuating signal for control mechanism (2), close heating element, start the cooling device simultaneously and cool off the temperature of furnace body (212) to the room temperature fast, and after reaching the room temperature, in time close the cooling device, and keep constancy of temperature and indoor seal, and alarm module (11) is the audible and visual alarm of a model SG-991.
3. The sintering temperature control device for processing the neodymium-iron-boron magnet as claimed in claim 1, wherein: the sensing module (13) comprises a rotating motor (131), a rotating rod (132) and a clamping type micro cylinder (133), an indicator lamp (1311) is arranged at the top end of the rotating motor (131), a temperature display screen (1312) is installed on the surface of the outer wall of the rotating motor (131), the rotating rod (132) is arranged at the output end of the rotating motor (131), the bottom end of the rotating rod (132) extends into the inner cavity of the furnace body (212), a clamping piece sleeve (1321) is sleeved at the bottom end of the rotating rod (132), the clamping type micro cylinder (133) is clamped on the outer wall of one side of the clamping piece sleeve (1321), a push rod (1331) is arranged at the bottom end of the clamping type micro cylinder (133), a temperature measuring probe (1332) is installed at the bottom end of the push rod (1331), and the temperature measuring probe (1332) is an infrared temperature sensor of a model T10 HW.
4. The sintering temperature control device for processing the neodymium-iron-boron magnet as claimed in claim 1, wherein: the monitoring unit (12) comprises a display module (121) and a detection module (122), the display module (121) is a monochrome LED display screen with the model phi of 3.75, the detection module (122) is used for detecting to obtain a sintering temperature curve of the sintering furnace, a data tracking queue is established corresponding to the neodymium iron boron magnet in the sintering furnace, the sintering state of the neodymium iron boron magnet in the furnace is tracked and counted, a predicted value of a sintering end point at a temperature rising position is calculated in real time, an ideal sintering end point is preset, an ideal sintering temperature control range of the sintering furnace is calculated by combining the predicted value of the sintering end point of the neodymium iron boron magnet at the temperature rising position, and a control mechanism is adjusted and the sintering state of the neodymium iron boron magnet is controlled timely according to the ideal sintering temperature control range.
5. The sintering temperature control device for processing the neodymium-iron-boron magnet as claimed in claim 1, wherein: electric heating pipes (2123) are mounted on the inner walls of two sides of the furnace body (212), the electric heating pipes (2123) are electrically connected with the monitoring unit (12), a bearing plate (2124) is arranged on the bottom surface of the inner cavity of the furnace body (212), a plurality of groups of material containing grooves (21241) are processed at the upper end of the bearing plate (2124), and a partition ridge (21242) is arranged between every two adjacent material containing grooves (21241).
6. The sintering temperature control device for processing the neodymium-iron-boron magnet as claimed in claim 1, wherein: the waste heat recovery box (22) comprises a box body (221) and heat exchange tubes (222), an air suction pump (2211) is installed on the outer wall of one side, close to the furnace body (212), of the box body (221), an air inlet tube (22111) is arranged at the output end of the air suction pump (2211), one end of the air inlet tube (22111) is communicated with the inner cavity of the furnace body (212), a water inlet tube (2212) and a water outlet tube (2213) are installed on the outer wall of one side of the box body (221) respectively, the heat exchange tubes (222) are fixedly arranged in the inner cavity of the box body (221), and the heat exchange tubes (222.
7. The sintering temperature control device for processing the neodymium-iron-boron magnet as claimed in claim 1, wherein: the background (3) comprises a background monitor (301), a monitoring center (302), an early warning display (303) and a data acquisition processor (304), the background monitor (301) is composed of a data storage module (3011), a data display unit (3012), a data printing module (3013), an infrared receiving module (3014) and a wireless data transmission module (3015), the wireless data transmission module (3015) is used for receiving data information sent by the network platform (4) and sending command instruction information to the network platform (4), and the output ends of the background monitor (301), the early warning display (303) and the data acquisition processor (304) are connected with the monitoring center (302).
8. The sintering temperature control device for processing the neodymium-iron-boron magnet as claimed in claim 7, wherein: the data storage module (3011), is used for utilizing the memorizer in the backstage to store real-time measured data, and transmit the measured data to the print module of the data (3013) again, its output end connects the print module of the data (3013); and a data printing module (3013) for synchronously printing the measurement data by using the networked printers.
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| CN202010991383.9A CN112129117A (en) | 2020-09-21 | 2020-09-21 | Sintering temperature control device for processing neodymium iron boron magnet |
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| CN202010991383.9A CN112129117A (en) | 2020-09-21 | 2020-09-21 | Sintering temperature control device for processing neodymium iron boron magnet |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112394758A (en) * | 2020-10-19 | 2021-02-23 | 田和刚 | Powder metallurgy billet sintering temperature control system |
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Application publication date: 20201225 |