CN202943251U - Rare-earth permanent magnet alloy continuous sintering equipment - Google Patents
Rare-earth permanent magnet alloy continuous sintering equipment Download PDFInfo
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- CN202943251U CN202943251U CN 201220584986 CN201220584986U CN202943251U CN 202943251 U CN202943251 U CN 202943251U CN 201220584986 CN201220584986 CN 201220584986 CN 201220584986 U CN201220584986 U CN 201220584986U CN 202943251 U CN202943251 U CN 202943251U
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Abstract
The utility model provides rare-earth permanent magnet alloy continuous sintering equipment. A preparing box, a glove box, a tunnel type conveying sealed box, a lock chamber, a loading chamber, a preheating chamber, a heating degassing chamber, a sintering chamber and a cooling chamber are connected in series through a between-box partition valve and a between-chamber partition valve. Compression-formed rare-earth permanent magnet powder alloy is conveyed through oxygen-free atmosphere, heating, degassing, sintering and cooling processing are completed in different chambers. The preparing box, the glove box and the tunnel type conveying sealed box are in bottom roller transmission, other chamber transmission devices are arranged on the upper portions of the chambers, a rolling wheel track is used for conveying, a rolling wheel of a material frame is hung on tracks of the transmission devices, and a plurality of material boxes can be loaded on the drawer type material frame. A vertical type rectangular heating furnace is narrow in heating area width, even in heating, quick in cooling and high in efficiency. Under the premise that energy is greatly saved, oxygen-free conveying is used, performance of a product is improved by continuous sintering, and the requirement on uniformity of sintered rare-earth permanent magnet alloy magnetic performance is met.
Description
Technical field
The present invention relates to a kind of continuous sintering plant of permanent-magnet rare-earth NdFeB alloy, belong to the technical field of permanent-magnet alloy treatment facility and technique.
Background technology
With R
2Fe
14The Type B compound is that the R-Fe-B of principal phase is Fe-B rare-earth permanent magnet, is more and more used with its good magnetic property, is widely used in the Magnetic resonance imaging of medical treatment, computer hard disc driver, the vibrating motor of mobile phone, the motor of hybrid vehicle, wind-driven generator etc.
Existing neodymium ferroboron rare earth permanent-magnetic alloy vacuum fritting is a kind of one-way fired furnace, possesses heating and fast cold function, and some sintering furnaces also are accompanied with a protective atmosphere glove box.Because be that internally heated oven can only heat under vacuum state, firing rate is slow, long-term serviceability temperature uniformity variation; Because every heat is all wanted Repeat-heating and cooling procedure, inert gas consumption is many, and energy consumption is large, and heater and thermal insulation layer are polluted, and sintering furnace shortens service life greatly.
Summary of the invention
For the technical problem of above-mentioned existence, the invention provides a kind of continuous sintering plant of RE permanent magnetic alloy.
Agglomerating plant of the present invention is by the preparation case that is arranged in order, glove box, sealing carrying case, and transmission device, loop line frame and the vacuum extractor of the lock chamber that is arranged in order, charging chamber, preheating chamber, heat de-airing chamber, agglomerating chamber, cooling chamber, each chamber form, each chamber connects from valve by interventricular septum, and described sealing carrying case is connected with the charging chamber; Each chamber transmission device is arranged on the top of each chamber, each outdoor loop line frame that is provided with transmission device, the loop line frame with into and out of the end transition frame be connected, it is reciprocal that bin is suspended on the transmission device cocycle, magazine is sent on bin through the sealing carrying case, and preheating chamber, heat de-airing chamber and agglomerating chamber's outer wall are respectively equipped with water cooling tube or water-cooling jacket, vacuum-pumping pipeline, inert gas imports pipeline, safety valve and Pressure gauge.
Described preheating chamber, heat de-airing chamber and agglomerating chamber inside are respectively equipped with vertical rectangle heating furnace, and described heating furnace inwall is provided with thermal insulation layer, and there are many group heaters thermal insulation layer inside, and every group of heater is provided with a thermocouple, and the temperature grouping is controlled; Described transmission device is arranged on outside heating furnace, but heating furnace top is provided with the thermal insulation board of opening and closing left and right.
separation valve door between described chamber is the one-way sealing push-pull valve, comprise valve body, the second cylinder, a plurality of cylinder or oil cylinder, the first valve plate and forward and backward blind flange, wherein, valve body corresponding both sides are respectively arranged with forward and backward blind flange, and front blind flange outer top is provided with the second cylinder and cooling water pipe assembly, be provided with first valve plate parallel with other both sides in valve body, the first valve plate is hung in the valve body internal upper part by the valve plate running gear, the cylinder rod cylinder head of valve plate running gear and outside the second cylinder partly is rigidly connected, be provided with the second roller and end guide rail thereof bottom the first valve plate, be welded with water cooling tube or chuck on the first valve plate, water cooling tube or chuck are connected on two sealing rigidity cooling water pipe axles by the flexible pipe of cooling water pipe assembly, the cooling water tubular axis is connected with the cylinder rod of the second cylinder, realize interlock, relative with the cooling water tubular axis static during the first valve plate displacement, a plurality of cylinders or oil cylinder are connected respectively locking the first valve plate with the two ends of the first valve plate, realize sealing.
Described cooling chamber sidewall is provided with the second motor, and there are bellows inside, and the side plate of bellows has a plurality of mozzles, and corresponding opposite side has heat exchanger, and the heat exchanger air outlet is facing to air inlet, and blower fan is connected with the second motor shaft, and cooling locular wall periphery is provided with arc deflector; Be externally connected to the pipeline of finding time, inert gas importing pipeline and safety valve pipeline; Vacuum-pumping pipeline is connected with vacuum extractor.
Described preheating chamber is joined the wax collecting tank as the dewaxing chamber.
described transmission device comprises the first motor, chain, gear pair, the diaxon bearing, two closed slides, two group of first roller, two first sprocket wheels, the second sprocket wheel and Chain plate, described two first sprocket wheels are arranged on and pass each chamber housing and stretch out on the outer hinge axis of housing, be connected by chain between the first motor output shaft and the first sprocket wheel, diaxon bearing one end is arranged on respectively on the interior sprocket shaft of housing, be connected with the axle parallel with hinge axis between the other end, be separately installed with the gear pair that cooperatively interacts on this axle and hinge axis, the second sprocket wheel is arranged on the interior sprocket shaft of housing, two group of first roller that is placed in two closed slides connects by its roller shaft, the Chain plate that coordinates with the second sprocket wheel is installed on roller shaft, the described Chain plate other end connects the bin connecting rod.
The described latch plate that is connected with on bearing block, the latch plate other end connects the housing of each chamber, and during work, latch plate is stressed makes the second sprocket wheel be connected with Chain plate to connect.
It is vacuum or protective atmosphere seal case that described preparation case, glove box and tunnel type transmit seal box, is respectively equipped with the pipeline of finding time and connects vacuum plant, is provided with the inert gas loading line and connects inert gas system; Be respectively equipped with between adjacent two the casees and isolate valve between case, prepare the case other end and be provided with chamber door, transmit and be provided with manipulator in seal box with pack into the bin of charging chamber of magazine; Each case is provided with Pressure gauge and vacuum gauge, is connected with the balanced valve pipeline between adjacent two the casees, by two casees pressure of balanced valve pipeline balance.
between described case, the isolation valve comprises valve housing, the 3rd cylinder and inner the second valve plate that arranges thereof, flap, connecting rod, the 3rd roller, guide rail and collision block, described the second valve plate is connected on flap by a plurality of connecting rods, be provided with guide rail in valve housing, flap is provided with the 3rd roller that slides along guide rail, the 3rd cylinder is placed in outside valve housing, its cylinder rod stretches in valve body and is connected with flap, collision block is placed on valve housing internal valve end cap, the second valve plate is provided with cushion rubber near valve port side flange end, the 3rd cylinder drives flap and moves on the guide roller track, the second valve plate clashes into collision block, it is close to the valve port side flange that connecting rod promotes the second valve plate, the compression cushion rubber is completed the isolating seal effect.
Beneficial effect of the present invention:
1. the present invention compares with existing vacuum sintering furnace, heating, sintering and cooling processing are decomposed in different vacuum chambers complete, avoid existing single chamber sintering furnace Repeat-heating and cooling all at every turn, the large efficient that consumes energy is low, and have heater and the contaminated problem of thermal insulation layer, and can effectively solve the dewaxing problem of blank, greatly improve the uniformity of production capacity and product under energy-conservation prerequisite, improve simultaneously service life of equipment, shortened the equipment maintenance time.
2. in preheating chamber of the present invention, heat de-airing chamber and agglomerating chamber, vertical rectangle heating furnace is set all, the heating-up temperature grouping is controlled, and hot zone width is narrow, homogeneous heating, and cooling fast, efficient is high.Under significantly energy-conservation prerequisite, anaerobic transmits, and continuous sintering has improved properties of product, has guaranteed the conforming requirement of sintered rare earth permanent magnet alloy body magnetic property.
3. the transmission device identical with each cell structure is set on loop line frame of the present invention, realizes back and forth transmitting.
Description of drawings
Fig. 1 is structural representation of the present invention.Fig. 2 is the sectional structure schematic diagram of heat de-airing chamber in Fig. 1.
Fig. 3 is that schematic diagram is looked on the left side of Fig. 2.
Fig. 4 is the structural representation of cooling chamber in Fig. 1.
Fig. 5 be in Fig. 1 interventricular septum from the valve mechanism schematic diagram.
Fig. 6 is that schematic diagram is looked on the left side of Fig. 5.
Fig. 7 is the schematic top plan view of Fig. 5.
Fig. 8 prepares the box structure schematic diagram in Fig. 1.
Fig. 9 is glove box structural representation in Fig. 1.
Figure 10 is isolation valve mechanism schematic diagram between Fig. 1 raising middle flask.
In figure: 1, suspension type induction system; 2, bin; 3, inlet side transition frame; 4, chamber, inlet side door; 5,1# vacuum plant; 6, slightly take out valve; 7,1# slide valve pump; 8,1# lobe pump; 9,1# by-passing valve; 10, lock chamber; 11, loading line; 12,1# Pressure gauge; 13, vacuum gauge; 14,1# separation valve door; 15, inert gas imports pipeline; 16, preheating chamber; 17, safety valve; 18, flange; 19, main valve; 20, diffusion pump; 21,2# lobe pump; 22,2# slide valve pump; 23,2# by-passing valve; 24,2# vacuum plant; 25,2# separation valve door; 26, heat de-airing chamber; 27,3# vacuum plant; 28,3# separation valve door; 29, agglomerating chamber; 30,4# vacuum plant; 31,4# separation valve door; 32,5# vacuum plant; 33, blower fan; 34, cooling chamber; 35, go out to hold the chamber door; 36, go out to hold transition frame; 37, prepare case; 38,6# separation valve door; 39, glove box; 40,7# separation valve door; 41, sealing carrying case; 42, magazine; 43, manipulator; 44, charging chamber; 45,5# separation valve door; 46, safety valve connecting pipe flange; 47, inflation flange; 48, bearing block; 49, the first sprocket wheel; 50, gear pair; 51, thermal insulation board; 52, water cooling tube; 53, the first roller, 54, guide rail; 55, the pipe connecting flange of bleeding; 56, upper thermal insulation layer; 57, thermocouple; 58, water cooled electrode; 59, side thermal insulation layer; 60, heater; 61, lower thermal insulation layer; 62, latch plate; 63, chain; 64, the first motor; 65, the second sprocket wheel; 66, the first cylinder; 67, optoelectronic switch; 68, the second motor; 69, blower fan; 70, heat exchanger; 71, mozzle; 72, deflector; 73, the second cylinder; 74, the first magnetic switch; 75, front blind flange; 76, valve body; 77, the second magnetic switch; 78, cylinder or oil cylinder; 79, the first cushion rubber; 80, the first valve plate; 81, thermal insulation board; 82, rear blind flange; 83, the second roller; 84, end guide rail; 85, win in succession; 86, cooling water tubular axis; 87, flexible pipe; 88, get on the right track; 89, hinge connecting plate; 90, chamber door; 91,1# vent valve pipeline; 92,1# electrical control cubicles; 93,1# observation window; 94,1# charging valve pipeline; 95,2# Pressure gauge; 96, Chain plate; 97,1# bottom roller wheel transmission device; 98, gloves flange assembly; 99,2# observation window; 100,2# electrical control cubicles; 101,2# vent valve pipeline; 102,2# charging valve pipeline; 103,3# Pressure gauge; 104,2# bottom roller wheel transmission device; 105, the 3rd cylinder; 106, the 3rd magnetic switch; 107, the 3rd roller; 108, track; 109, the second cushion rubber; 110, the second valve plate; 111, flap; 112, connecting rod; 113, collision block, 114, the valve end cap.
The specific embodiment
The present invention will be further described below in conjunction with drawings and Examples.
Embodiment 1: as shown in Figure 1, RE permanent magnetic alloy continuous sintering plant of the present invention, by the preparation case 37 that is arranged in order, glove box 39, sealing carrying case 41, and transmission device, loop line frame and each chamber vacuum extractor of the lock chamber 10 that is arranged in order, charging chamber 44, preheating chamber 16, heat de-airing chamber 26, agglomerating chamber 29, cooling chamber 34, each chamber form, each chamber connects from valve by interventricular septum, and described sealing carrying case 41 is connected with charging chamber 44; Each chamber transmission device is arranged on the top of each chamber, each outdoor loop line frame that is provided with transmission device, each chamber transmission device and loop line frame and on transmission device jointly form suspension type induction system 1; The loop line frame with into and out of the end transition frame 3,36 be connected, it is reciprocal that bin 2 is suspended on the transmission device cocycle, magazine 42 is sent on bin 2 through sealing carrying case 41, and preheating chamber 16, heat de-airing chamber 26 and agglomerating chamber's 29 outer walls are respectively equipped with water cooling tube 52 or water-cooling jacket, vacuum-pumping pipeline, inert gas importing pipeline 15, safety valve 17,1# Pressure gauge 12 and vacuum gauge 13.
As shown in Figure 1, described preparation case 37, glove box 39 and tunnel type sealing carrying case 41 are vacuum or protective atmosphere seal case, are respectively equipped with the pipeline of finding time and connect its vacuum plant, are provided with inert gas loading line 11 and are used for filling inert gas; Be provided with between adjacent two the casees and isolate valve between case, prepare case 37 other ends and be provided with chamber door, be provided with the manipulator 43(manipulator 43 that magazine 42 is packed on the bin 2 of charging chamber in sealing carrying case 41 and be existing structure); Each case is provided with Pressure gauge and vacuum gauge, is connected with the balanced valve pipeline between each case, by two casees pressure of balanced valve pipeline balance.Described preparation case 37, glove box 39 and tunnel type sealing carrying case 41 are interior respectively with 1#, 2# bottom roller wheel transmission device 97,104, transmission magazine 42, and described roller driving device is existing structure, is multi-roll drive mechanism arranged side by side.
As shown in Figure 8, described preparation case 37 is vertical sealed square chests, one end has chamber door 90, one ends that 6# separation valve door 38 is arranged, and 1# vent valve pipeline 91,1# electrical control cubicles 92,1# observation window 93,1# charging valve pipeline 94 and balancing gas pressure pipeline and 2# Pressure gauge 95 are arranged on casing; Magazine 42 in casing is by 97 transmissions of 1# bottom roller wheel transmission device.
As shown in Figure 9, described glove box 39 is vertical sealed square chests, one end is that 6# separation valve door 38 is connected with preparation case 37, one end has 7# separation valve door 40, gloves flange assembly 98,2 # observation window 99,2# electrical control cubicles 100,2# vent valve pipeline 101,2# charging valve pipeline 102 and 3# Pressure gauge 103 are arranged on casing, be provided with 2# bottom roller wheel transmission device 104 in casing.
As shown in Figure 1, described tunnel type sealing carrying case 41 is vertical sealed casees, is connected with 44 casing sides, charging chamber, and is provided with vent valve pipeline, charging valve pipeline, Pressure gauge and bottom roller wheel transmission device.Be provided with pack into manipulator 43 in suspension type bin 2 of the magazine 42 that code is lined up buttress in case; Bottom roller wheel transmission device wherein is that a plurality of running rollers that are set up in parallel are realized transmission.
As shown in figure 10, the separation valve door between described case is the push-pull valve structure of one-way sealing.comprise valve housing, the 3rd cylinder 105 and inner the second valve plate 110 that arranges thereof, flap 111, connecting rod 112, the 3rd roller 107, guide rail 108 and collision block 113, described the second valve plate 110 is connected on flap 111 by a plurality of connecting rods 112, be provided with guide rail 108 in valve housing, flap 111 is provided with the 3rd roller 107 that slides along guide rail 108, the 3rd cylinder 105 is placed in outside valve housing, its cylinder rod stretches in valve body and is connected with flap 111, collision block 113 is placed on valve housing internal valve end cap 114, the second valve plate 110 is provided with cushion rubber 109 near valve port side flange 18 ends, the 3rd cylinder 105 drives flap 111 and moves on guide rail 108, the second valve plate 110 clashes into collision block 113, it is close to valve port side flange 18 that connecting rod 112 promotes the second valve plate 110, compression cushion rubber 109 is completed the isolating seal effect.The 3rd cylinder 105 is provided with the 3rd magnetic switch 106, shows the second valve plate 110 shift positions.
Described preheating chamber 16, heat de-airing chamber 26 and agglomerating chamber 29 inside are respectively equipped with vertical rectangle heating furnace, as shown in Figure 2 and Figure 3, described heating furnace inwall be provided with thermal insulation layer (by upper and lower thermal insulation layer 56,61 and both sides thermal insulation layer 59 consist of), there are many group heaters 60 thermal insulation layer inside, every group of heater 60 is provided with a thermocouple 57, and the temperature grouping is controlled; Described transmission device is arranged on outside heating furnace, but heating furnace top is provided with the thermal insulation board 51 of opening and closing left and right, and thermal insulation board 51 both sides connect respectively the first cylinder 66; During work, the first cylinder 66 is controlled the folding of thermal insulation board 51, and bin 2 is placed in heating furnace, and an end passes thermal insulation board 51 and is suspended on transmission device, and optoelectronic switch 67 is arranged on the heating furnace sidewall, controls the walking position of bin 2.
as Fig. 2, shown in Figure 3, transmission device described in this example comprises the first motor 64, chain 63, gear pair 50, diaxon bearing 48, two closed slides 54, two group of first roller 53, two first sprocket wheels 49, the second sprocket wheel 65 and Chain plate 96, described two first sprocket wheels 49 are arranged on and pass each chamber housing and stretch out on the outer hinge axis of housing, the first motor 64 output shafts are connected by chain 63 with 49, the first sprocket wheel, diaxon bearing 48 1 ends are arranged on respectively on the interior sprocket shaft of housing, be connected with the axle parallel with sprocket shaft between the other end, be separately installed with the gear pair 50 that cooperatively interacts on this axle and hinge axis, the second sprocket wheel 65 is arranged on the interior sprocket shaft of housing, two group of first roller 53 that is placed in two closed slides 54 connects by its roller shaft, the Chain plate 96 that coordinates with the second sprocket wheel 65 is installed on roller shaft, described Chain plate 96 other ends connect bin 2 connecting rods.Be connected with latch plate 62 on bearing block 48, latch plate 62 other ends connect the housing of each chamber, stressedly during work the second sprocket wheel 65 are connected with Chain plate closely connect.
Described lock chamber 10 is vertical cabinets, is the conversion chamber of vacuum and atmosphere, is provided with inert gas and imports pipeline and 1# vacuum plant 5, and 1# vacuum plant 5 forms by slightly taking out valve 6,1# slide valve pump 7 or sliding vane rotary pump, 1# lobe pump 8,1# by-passing valve 9 and vacuum line.Bin 2 carrying magazine 42 vertical hangings by the second motor 68 reductors drivings of transmission device, are carried by transmission device on transmission device, and optoelectronic switch shows the position of controlling bin 2, and the second motor 68 of transmission device is realized frequency control.
Described charging chamber 44 is vertical cabinets, one end have 5# separation valve door 45 with the lock chamber 10 be connected, one end has 1# separation valve door 14 to be connected with preheating chamber 16,44 casing sides, charging chamber are connected with tunnel type sealing carrying case 41, the magazine 42 that manipulator 43 in sealing carrying case 41 is lined up buttress with code is packed in suspension type bin 2, and charging chamber 44 is provided with inert gas and imports pipeline.Bin 2 carrying magazine 42 vertical hangings are on transmission device, and optoelectronic switch shows controls bin 2 positions, and the second motor 68 of transmission device is realized frequency control.
Described preheating chamber 16, heat de-airing chamber 26 and agglomerating chamber 29 inside are provided with vertical rectangle heating furnace, inside heating furnace is provided with, side, lower thermal insulation layer 56,59,61, thermal insulation layer inside is provided with many group heaters 60, draw by water cooled electrode 58 and outdoorly be connected with heating power supply, every group of heater 60 has a thermocouple 57 to be connected to temp. control computer in electrical control cubicles, control heater connects the power output of power supply outward, reaches the subregional temperature of heating furnace and controls; Transmission device is outside heating furnace, and heating furnace top is provided with the thermal insulation board 51 of opening and closing left and right, and thermal insulation board 51 both sides connect respectively the first cylinder 66, but the thermal insulation board 51 that promotes opening and closing left and right moves, and when bin was walked about, thermal insulation board 51 was opened, forbid in heating furnace when bin, thermal insulation board 51 is closed; Be two closed slides 54 of transmission device on upper chamber's sidewall outside heating furnace, a plurality of the first rollers 53 that connect bin 2 are suspended on guide rail 54, outdoor the first motor 64 reductors are incorporated into power on indoor transmission seal sprocket shaft by sprocket wheel chain 63, transfer torque on sprocket wheel 49 by the stressed gear pair 50 of latch plate 62, the gear pair two ends are bearing blocks 48, sprocket wheel 49 is stirred the Chain plate 96 on bin 2, drives bin 2 walkings.
Described preheating chamber 16 is vertical cabinets, and outer wall is provided with water cooling tube 52, and the pipe connecting flange 55 of bleeding on it connects the 2# vacuum plant, and inflation flange 47 connects inert gas and imports pipeline 15, safety valve connecting pipe flange 46 connection safety valves 17.Bin 2 carrying magazine 42 vertical hangings are in transmission device conveyings of getting on the right track, and the optoelectronic switch that the symmetrical side plate in preheating chamber casing top is provided with shows control bin 2 positions, frequency control.Described preheating chamber 16 is joined the wax collecting tank, and the external bag thermal insulation layer in chamber can be used as the chamber that dewaxes.
Each vacuum plant is existing structure, and 2#, 3# and 4 # vacuum plant 24,27,30 structures are identical, consist of by main valve 19, diffusion pump 20,2# lobe pump 21,2# slide valve pump 22,2# by-passing valve 23 and vacuum line; The 1# vacuum plant consists of by slightly taking out valve 6,1# by-passing valve 9,1# slide valve pump 7 and 1# lobe pump 8; The 5# vacuum plant is made of slide valve pump, lobe pump and main valve.
As shown in Figure 2 and Figure 3, described heat de-airing chamber 26 is vertical cabinets, and outer wall has water cooling tube 52 or water-cooling jacket, also is connected with 3# vacuum plant 27, inert gas imports pipeline and safety valve.Bin 2 carrying magazine 42 vertical hangings are in conveyings of getting on the right track of its transmission device, and symmetrical side plate top, Heating Dehydrogenation chamber heating furnace is provided with the correlation optoelectronic switch outward, show control bin 2 positions, frequency control.
Described agglomerating chamber 29 is vertical cabinets, and outer wall has water cooling tube, also is connected with 4# vacuum plant 30, inert gas importing pipeline and safety valve.Bin 2 carrying magazine 42 vertical hangings are in transmission device conveyings of getting on the right track, and the optoelectronic switch that the symmetrical side plate in casing top is provided with shows control bin 2 positions, frequency control.
As shown in Figure 4, described cooling chamber 34 is vertical cabinets, outer wall is welded with water cooling tube, sidewall is provided with the second motor 68, and there are bellows inside, and the side plate of bellows is provided with a plurality of mozzles 71, corresponding opposite side has heat exchanger 70, heat exchanger 70 air outlets are facing to blower fan 33, and blower fan 33 is connected with the axle of the second motor 68, and cooling locular wall periphery is provided with arc deflector 72; Be externally connected to the pipeline of finding time, inert gas importing pipeline and safety valve pipeline; Vacuum-pumping pipeline is connected with 5# vacuum plant 32; Bin 2 carrying magazine 42 vertical hangings are on transmission device, and optoelectronic switch shows controls bin 2 positions, frequency control.
separation valve door between described chamber is one-way sealing isolation push-pull valve, as Fig. 5-shown in Figure 7, comprise valve body 76, the second cylinder 73, a plurality of cylinder or oil cylinder 78, the first valve plate 80 and forward and backward blind flange 75,82, wherein, the corresponding both sides of valve body 76 are respectively arranged with forward and backward blind flange 75,82, and front blind flange 75 outer top is provided with the second cylinder 73 and cooling water pipe assembly, be provided with first valve plate 80 parallel with other both sides in valve body 76, the first valve plate 80 is hung in valve body 76 internal upper parts by the valve plate running gear, the cylinder rod cylinder head of valve plate running gear and outside the second cylinder 73 partly is rigidly connected, the first valve plate 80 bottoms are provided with the second roller 83 and end guide rail 84 thereof, be welded with water cooling tube or chuck on the first valve plate 80, water cooling tube or chuck are connected on two sealing rigidity cooling water pipe axles 86 by the flexible pipe 87 of cooling water pipe assembly, cooling water tubular axis 86 is connected with the cylinder rod of the second cylinder 73, realize interlock, relative with cooling water tubular axis 86 static during the first valve plate 80 displacement, a plurality of cylinders or oil cylinder 78 are connected with the two ends of the first valve plate 80 respectively, be used for locking the first valve plate 80, the second magnetic switch 77 is separately positioned on two row cylinders or oil cylinder 78, controls the position of the first valve plate 80.
Described valve plate running gear comprise be arranged at the valve body upper end get on the right track 88, roller and hinge connecting plate 89, roller is placed in and gets on the right track in 88,88 slide along getting on the right track, roller is hung in the first valve plate 80 by hinge connecting plate 89 and gets on the right track on 88, realizes in the slip of getting on the right track on 88.The first corresponding valve port side of valve plate 80 is provided with thermal insulation board 81.The cylinder rod of the second cylinder 73 drives the first valve plate 80 displacements, controls the position of the first valve plate 80 by the first magnetic switch 74 that arranges on the second cylinder 73, and described one-way sealing acts on the first valve plate 80 by a plurality of locking cylinders or cylinder rod and completes.
As shown in Figure 7, described the first valve plate 80 is promoted by a plurality of cylinders or oil cylinder 78, guarantees that the first valve plate 80 is stressed evenly, and the decrement that the first valve plate 80 is provided with sealing the first cushion rubber 79, the first cushion rubbers 79 is large, guarantees large scale valve port valve plate sealing property.When the forward and backward blind flange 75 of valve body 76,82 effect are maintenance, the first valve plate 80 can shift out from valve body 76 sides.
According to the heat treatment needs, this routine described preheating chamber also can be equipped with the wax collecting tank as the dewaxing chamber.
The course of work of the present invention is as follows:
Be illustrated below with reference to Fig. 1, check power electric, power gas source, circulating water for cooling and medium source of the gas.Check that all major-minor Plant in good condition are harmless, in running order.Adopt the scatter operation pattern, making equipment satisfy the production technology state is that vacuum system starts and is in interlocking state, isolate valve between close chamber, isolate valve between case, glove box, tunnel type transmit seal box and charging chamber and are in that in protective atmosphere, (oxygen content＜500PPm), other chambers are in vacuum state; The heating furnace internal heater is intact; Inert gas is set to predetermined value, and all the sensors is in the stable state of work.
When glove box 39 and 41 pressure balances of sealing carrying case, open 7# separation valve door 40, start transmission device, become buttress magazine 42 to enter into sealing carrying case 41, close 7# separation valve door 40; Magazine 42 is transported to the front wait of manipulator 43 in airtight carrying case.
Open chamber, inlet side door 4 under atmospheric pressure, the bin 2 of waiting in inlet side transition frame 3 enters lock chamber 10, closes chamber, inlet side door 4; 5 pairs of 1# vacuum systems lock chamber 10 vacuumizes, and when pressure≤5E-2Pa, recharges inert gas.
Preheating chamber 16 does not have bin 2, and 1# separation valve door 14 is opened in preheating chamber 16 and charging chamber's 44 pressure balances, and bin 2 enters preheating chamber 16, closes 1# separation valve door 14.24 pairs of preheating chambers of 2# vacuum plant are evacuated down to 1Pa, are heated to 430 ℃ of insulations by the heating rate of technological requirement.
27 pairs of 3# vacuum plants heat de-airing chamber 26 vacuumizes.When heat de-airing chamber 26 does not have bin 2,2# separation valve door 25 is opened in preheating chamber 16 and heat de-airing chamber 26 pressure balances, and bin 2 enters heat de-airing chamber 26, closes 2# separation valve door 25,850 ℃ of the heating-up temperatures of heat de-airing chamber 26.
30 pairs of agglomerating chamber 29 of 4# vacuum plant vacuumize.When agglomerating chamber 29 does not have bin 2,3# separation valve door 28 is opened in agglomerating chamber 29 and heat de-airing chamber 26 pressure balances, and bin 2 enters agglomerating chamber 29, closes 3# separation valve door 28,1080 ℃ of the heating-up temperatures of agglomerating chamber.
32 pairs of cooling chambers 34 of 5# vacuum plant vacuumize.When agglomerating chamber 29 and cooling chamber 34 pressure balances, cooling chamber 34 does not have bin 2, opens 4# separation valve door 31, and bin 2 enters cooling chamber 34, closes 4# separation valve door 31.Filling with inert gas when pressure reaches 0.01Mpa, starts blower fan 33 and begins to force cooling to the magnet block in magazine and magazine.
Magnet block in magazine 42 and magazine 42 are cooled to below 80 ℃, when cooling chamber 34 pressure are atmospheric pressure, open out end chamber door 35, and bin 2 enters into out end transition frame 36.
Wherein the conveying of bin 2 between each chamber is the driven by motor chain, be incorporated into power on the power transmission shaft of vacuum chamber casing internal gear pair 50 by seal transmission shaft, be delivered on the first sprocket wheel 49 by bearing block 48, gear pair 50, stressed to bin 2 pulling axises by latch plate 62, the first roller 53 on bin 2 is walked on guide rail 54, and optoelectronic switch 67 is limit switches.
Aborning, control system can continuously scan status of equipment, and automatically moves according to predefined program.Whole operation is to complete on the man-machine interface of computer.
The display screen of electric control system or system can provide following information: the running status of vavuum pump, vacuum valve and vacuum line vacuum; Drive and demonstration bin 2 conveying and running statuses; Valve and fire door running status between driving and display room; The vacuum, pressure and the heating-up temperature that show each independent vacuum chamber; Dielectric gas running status, safety valve state; Actual cooling water, power atmospheric pressure, dielectric gas are reported to the police; Alarming and managing; Show all relevant technological parameters (setting value and actual value); The parameter input; Historical technological parameter/data show and store; All main components of equipment can the operation of transmission display screen.
Embodiment 2: this example is identical with embodiment 1 frame for movement, and different is: the restriction of parameter in this routine sintering process is specially:
(1) compressing rare earth permanent-magnet powder alloy blank is processed through completely cutting off air-packing, be sent to and prepare case 37, close chamber door 90, vacuumize or the interior air of filling with inert gas displacement case; When the pressure balance of preparing case 37 and glove box 39, open 6# separation valve door 38 between case, the blank of packing is sent to glove box 39, close 6# separation valve door 38 between case; At glove box 39, blank is put into magazine 42,42 yards of magazines are lined up buttress; When the pressure balance of glove box 39 and sealing carrying case 41, open 7# separation valve door 40 between case, the magazine 42 that becomes buttress is sent to sealing carrying case 41, close 7# separation valve door 40 between case; Become the magazine 42 of buttress to be sent to manipulator 43 places with charging chamber's 44 interfaces, by manipulator 43 with pack into bin 2 in charging chamber 44 of magazine 42; In above-mentioned flow process, the oxygen content＜500PPm of each case and charging chamber;
(2) when charging chamber 44 and preheating chamber 16 pressure balances, open 1# separation valve door 14 between the chamber, bin 2 is sent to preheating chamber 16, closes 1# separation valve door 14; Begin to vacuumize, during higher than 1Pa, begin to be heated to 400 ℃ when vacuum, be incubated 3 hours;
(3) heat de-airing chamber 26 is in vacuum state, and 400 ℃ of heating-up temperatures are opened 2# separation valve door 25 between the chamber, and bin 2 is sent to heat de-airing chamber 26, closes 2# separation valve door 25; Temperature was got the multistage heating and heat preservation 2 hours from 450 ℃～800 ℃ in heating furnace, and vacuum reaches 3E-2Pa;
(4) agglomerating chamber is in vacuum state, and heating-up temperature to 850 ℃ is opened 3# separation valve door 28 between the chamber, and bin 2 is sent to heat de-airing chamber 26, closes 3# separation valve door 28; After vacuum is higher than 3E-2Pa, continue to heat up, heating-up temperature to 1080 ℃ sintering, vacuum reaches the E-2Pa level;
(5) cooling chamber 34 is in vacuum state, opens 4# separation valve door 31 between the chamber, and bin 2 is sent to cooling chamber 34, closes 4# separation valve door 31; Inflated with nitrogen or argon gas be to 0.01MPa, starts blower fan 33, the RE permanent magnetic alloys in magazine 42 and magazine 42 carried out cooling, is cooled to below 80 ℃; To atmospheric pressure, open out end chamber door 35 when the chamber pressure balance, bin 2 is sent to out end transition frame 36, closes out end chamber door 35; Magazine 42 in bin 2 is taken out from bin 2;
(6) bin 2 enters inlet side transition frame 3 through the loop line frame, lock chamber 10 Inflatable balances are to atmospheric pressure, drive into and hold chamber door 4, bin 2 is sent to locks chamber 10, when chamber, inlet side, pass door 4 is evacuated down to 1Pa, and filling with inert gas, when lock chamber 10 and charging chamber's 44 pressure balances, open 5# separation valve door 45 between the chamber, bin 2 is sent to charging chamber 44 and waits for the loading magazine, closes 5# separation valve door 45.
The present invention also can increase by (7) step, can also be connected in series a timeliness chamber by separation valve door after cooling chamber, and bin is sent to timeliness chamber, 800 ℃～900 ℃ of heating-up temperatures, 2～4 hours time; 450 ℃～550 ℃ of heating-up temperatures, 2～4 hours time.
The present invention also can increase by (8) step, can also be connected in series a cooling chamber 2 by separation valve door behind the timeliness chamber, and bin is sent to cooling chamber 2; Inflated with nitrogen or argon gas to 0.01 MPa～0.19 MPa, the startup blower fan carries out cooling to the RE permanent magnetic alloy in magazine and magazine, be cooled to below 80 ℃; To atmospheric pressure, open out end chamber door 35 when the chamber pressure balance, bin 2 is sent to out end transition frame 36, closes out end chamber door 35; Magazine 42 in bin 2 is taken out from bin 2.
Embodiment 3: this example as different from Example 2: the restriction of parameter in this routine sintering process is specially:
Wherein (2) step, when charging chamber 44 and preheating chamber 16 pressure balances, open 1# separation valve door 14 between the chamber, bin 2 is sent to preheating chamber 16, closes 1# separation valve door 14; Begin to vacuumize, during higher than 1Pa, begin to be heated to 500 ℃ when vacuum, be incubated 1 hour;
In (3) step, heat de-airing chamber 26 is in vacuum state, and 500 ℃ of heating-up temperatures are opened 2# separation valve door 25 between the chamber, and bin 2 is sent to heat de-airing chamber 26, closes 2# separation valve door 25; Temperature was got the multistage heating and heat preservation 4 hours from 500 ℃～850 ℃ in heating furnace, and vacuum reaches 3E-2Pa.
Embodiment 4: this example as different from Example 2: the restriction of parameter in this routine sintering process is specially:
Wherein (2) step, when charging chamber 44 and preheating chamber 16 pressure balances, open 1# separation valve door 14 between the chamber, bin 2 is sent to preheating chamber 16, closes 1# separation valve door 14; Begin to vacuumize, during higher than 1Pa, begin to be heated to 450 ℃ when vacuum, be incubated 2.5 hours;
In (3) step, heat de-airing chamber 26 is in vacuum state, and 500 ℃ of heating-up temperatures are opened 2# separation valve door 25 between the chamber, and bin 2 is sent to heat de-airing chamber 26, closes 2# separation valve door 25; Temperature was got the multistage heating and heat preservation 3 hours from 400 ℃～900 ℃ in heating furnace, and vacuum reaches 3E-2Pa;
Can find out by above-described embodiment, rare earth alloy has improved magnet performance by continuous sintering technique, and the automaticity of production improves greatly.
This professional those of ordinary skill should be able to be understood essence of the present invention, and recognizes that concrete implementation detail of the present invention can make various variations such as expansion a plurality of heat de-airings chamber, agglomerating chamber and cooling chamber in the claim protection domain.
Claims (9)
1. RE permanent magnetic alloy continuous sintering plant, it is characterized in that: by the preparation case that is arranged in order, glove box, sealing carrying case, and transmission device, loop line frame and the vacuum extractor of the lock chamber that is arranged in order, charging chamber, preheating chamber, heat de-airing chamber, agglomerating chamber, cooling chamber, each chamber form, each chamber connects from valve by interventricular septum, and described sealing carrying case is connected with the charging chamber; Each chamber transmission device is arranged on the top of each chamber, each outdoor loop line frame that is provided with transmission device, the loop line frame with into and out of the end transition frame be connected, it is reciprocal that bin is suspended on the transmission device cocycle, magazine is sent on bin through the sealing carrying case, and preheating chamber, heat de-airing chamber and agglomerating chamber's outer wall are respectively equipped with water cooling tube or water-cooling jacket, vacuum-pumping pipeline, inert gas imports pipeline, safety valve and Pressure gauge.
2. RE permanent magnetic alloy continuous sintering plant according to claim 1, it is characterized in that: described preheating chamber, heat de-airing chamber and agglomerating chamber inside are respectively equipped with vertical rectangle heating furnace, described heating furnace inwall is provided with thermal insulation layer, there are many group heaters thermal insulation layer inside, every group of heater is provided with a thermocouple, and the temperature grouping is controlled; Described transmission device is arranged on outside heating furnace, but heating furnace top is provided with the thermal insulation board of opening and closing left and right.
3. RE permanent magnetic alloy continuous sintering plant according to claim 1, it is characterized in that: the separation valve door between described chamber is the one-way sealing push-pull valve, comprise valve body, the second cylinder, a plurality of cylinder or oil cylinder, the first valve plate and forward and backward blind flange, wherein, the corresponding both sides of valve body are respectively arranged with forward and backward blind flange, and outside front blind flange, top is provided with the second cylinder and cooling water pipe assembly, be provided with first valve plate parallel with other both sides in valve body, the first valve plate is hung in the valve body internal upper part by the valve plate running gear, the cylinder rod cylinder head of valve plate running gear and outside the second cylinder partly is rigidly connected, be provided with the second roller and end guide rail thereof bottom the first valve plate, be welded with water cooling tube or chuck on the first valve plate, water cooling tube or chuck are connected on two sealing rigidity cooling water pipe axles by the flexible pipe of cooling water pipe assembly, the cooling water tubular axis is connected with the cylinder rod of the second cylinder, realize interlock, relative with the cooling water tubular axis static during the first valve plate displacement, a plurality of cylinders or oil cylinder are connected respectively locking the first valve plate with the two ends of the first valve plate, realize sealing.
4. RE permanent magnetic alloy continuous sintering plant according to claim 1, it is characterized in that: described cooling chamber sidewall is provided with the second motor, there are bellows inside, the side plate of bellows has a plurality of mozzles, corresponding opposite side has heat exchanger, the heat exchanger air outlet is facing to air inlet, and blower fan is connected with the second motor shaft, and cooling locular wall periphery is provided with arc deflector; Be externally connected to the pipeline of finding time, inert gas importing pipeline and safety valve pipeline; Vacuum-pumping pipeline is connected with vacuum extractor.
5. RE permanent magnetic alloy continuous sintering plant according to claim 1 is characterized in that: described preheating chamber configuration one wax collecting tank is as the dewaxing chamber.
6. RE permanent magnetic alloy continuous sintering plant according to claim 1, it is characterized in that: described transmission device comprises the first motor, chain, gear pair, the diaxon bearing, two closed slides, two group of first roller, two first sprocket wheels, the second sprocket wheel and Chain plate, described two first sprocket wheels are arranged on and pass each chamber housing and stretch out on the outer hinge axis of housing, be connected by chain between the first motor output shaft and the first sprocket wheel, diaxon bearing one end is arranged on respectively on the interior sprocket shaft of housing, be connected with the axle parallel with hinge axis between the other end, be separately installed with the gear pair that cooperatively interacts on this axle and hinge axis, the second sprocket wheel is arranged on the interior sprocket shaft of housing, two group of first roller that is placed in two closed slides connects by its roller shaft, the Chain plate that coordinates with the second sprocket wheel is installed on roller shaft, the described Chain plate other end connects the bin connecting rod.
7. RE permanent magnetic alloy continuous sintering plant according to claim 6 is characterized in that: the described latch plate that is connected with on bearing block, and the latch plate other end connects the housing of each chamber, and during work, latch plate is stressed makes the second sprocket wheel be connected with Chain plate to connect.
8. RE permanent magnetic alloy continuous sintering plant according to claim 1, it is characterized in that: it is vacuum or protective atmosphere seal case that described preparation case, glove box and tunnel type transmit seal box, be respectively equipped with the pipeline of finding time and connect vacuum plant, be provided with the inert gas loading line and connect inert gas system; Be respectively equipped with between adjacent two the casees and isolate valve between case, prepare the case other end and be provided with chamber door, transmit and be provided with manipulator in seal box with pack into the bin of charging chamber of magazine; Each case is provided with Pressure gauge and vacuum gauge, is connected with the balanced valve pipeline between adjacent two the casees, by two casees pressure of balanced valve pipeline balance.
9. RE permanent magnetic alloy continuous sintering plant according to claim 1, it is characterized in that: between described case, the isolation valve comprises valve housing, the 3rd cylinder and inner the second valve plate that arranges thereof, flap, connecting rod, the 3rd roller, guide rail and collision block, described the second valve plate is connected on flap by a plurality of connecting rods, be provided with guide rail in valve housing, flap is provided with the 3rd roller that slides along guide rail, the 3rd cylinder is placed in outside valve housing, its cylinder rod stretches in valve body and is connected with flap, collision block is placed on valve housing internal valve end cap, the second valve plate is provided with cushion rubber near valve port side flange end, the 3rd cylinder drives flap and moves on the guide roller track, the second valve plate clashes into collision block, it is close to the valve port side flange that connecting rod promotes the second valve plate, the compression cushion rubber is completed the isolating seal effect.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220584986 CN202943251U (en) | 2012-11-08 | 2012-11-08 | Rare-earth permanent magnet alloy continuous sintering equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220584986 CN202943251U (en) | 2012-11-08 | 2012-11-08 | Rare-earth permanent magnet alloy continuous sintering equipment |
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| CN202943251U true CN202943251U (en) | 2013-05-22 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103801688A (en) * | 2012-11-08 | 2014-05-21 | 沈阳中北真空科技有限公司 | Rare earth permanent magnetic alloy continuous sintering equipment |
| CN104482762A (en) * | 2014-11-13 | 2015-04-01 | 孔庆虹 | Continuous hydrogen treatment device of rare earth permanent magnet |
| CN106119537A (en) * | 2016-08-17 | 2016-11-16 | 大峘集团有限公司 | A kind of for sintering deposit, the locellus chiller of pellet |
| CN111418093A (en) * | 2017-12-01 | 2020-07-14 | 株式会社Posco | Secondary battery anode material sintering device and sintering method |
| CN112985069A (en) * | 2021-04-09 | 2021-06-18 | 江西科技学院 | Multistage rotary atmosphere sintering furnace and sintering process thereof |
-
2012
- 2012-11-08 CN CN 201220584986 patent/CN202943251U/en not_active Withdrawn - After Issue
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103801688A (en) * | 2012-11-08 | 2014-05-21 | 沈阳中北真空科技有限公司 | Rare earth permanent magnetic alloy continuous sintering equipment |
| CN104482762A (en) * | 2014-11-13 | 2015-04-01 | 孔庆虹 | Continuous hydrogen treatment device of rare earth permanent magnet |
| CN104482762B (en) * | 2014-11-13 | 2016-05-04 | 孔庆虹 | A kind of continuous hydrogen treating apparatus of rare earth permanent magnet |
| CN106119537A (en) * | 2016-08-17 | 2016-11-16 | 大峘集团有限公司 | A kind of for sintering deposit, the locellus chiller of pellet |
| CN106119537B (en) * | 2016-08-17 | 2018-08-31 | 大峘集团有限公司 | A kind of locellus cooling device being used for sinter, pellet |
| CN111418093A (en) * | 2017-12-01 | 2020-07-14 | 株式会社Posco | Secondary battery anode material sintering device and sintering method |
| CN112985069A (en) * | 2021-04-09 | 2021-06-18 | 江西科技学院 | Multistage rotary atmosphere sintering furnace and sintering process thereof |
| CN112985069B (en) * | 2021-04-09 | 2022-12-06 | 江西科技学院 | Multistage rotary atmosphere sintering furnace and sintering process thereof |
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