CN210856241U - Stress-relief annealing furnace - Google Patents
Stress-relief annealing furnace Download PDFInfo
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- CN210856241U CN210856241U CN201921516960.8U CN201921516960U CN210856241U CN 210856241 U CN210856241 U CN 210856241U CN 201921516960 U CN201921516960 U CN 201921516960U CN 210856241 U CN210856241 U CN 210856241U
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Abstract
The utility model relates to a destressing annealing furnace relates to valve annealing technical field, include: frame, furnace body, driving motor, circulating fan and aluminium system heat dissipation group, the furnace body install in the frame, the inside cavity of furnace body, the furnace body includes: the furnace roof, stove bottom and furnace body, the furnace roof, the stove bottom all with the sealed fixed connection of furnace body, driving motor installs the central point at the furnace roof and puts, a mounting hole has been seted up to the upper surface central point of furnace roof, driving motor's output shaft runs through in the mounting hole, driving motor's output shaft and mounting hole coaxial center, inside driving motor's output shaft stretched into the furnace body, be fixed with circulating fan on driving motor's the output shaft, driving motor's output shaft is close to the removable aluminium system heat dissipation group that is provided with of opening part of mounting hole, aluminium system heat dissipation group is made by the aluminium material, partly protrusion in the furnace roof of aluminium system heat dissipation group, another part holds in the. The utility model discloses have the radiating efficiency to circulating fan high, effectual and save the effect of water resource.
Description
Technical Field
The utility model belongs to the technical field of valve annealing technique and specifically relates to a destressing annealing furnace is related to.
Background
At present, a valve is an important part of an engine and has the functions of specially taking charge of inputting air into the engine and discharging combusted waste gas, stress relief annealing is required to be carried out in the valve production process, the stress relief annealing is heat treatment for heating a workpiece to a proper temperature below Ac1 (the temperature of non-alloy steel is 500-600 ℃), and furnace cooling is carried out after heat preservation, so that residual stress in blanks and parts is eliminated, the size and the shape of the workpiece are stabilized, and deformation and crack tendency of the parts in the cutting processing and using processes are reduced.
There is provided an annealing furnace, as shown in fig. 1, comprising: furnace body 2, circulating fan 4, circulating pipe 8 and driving motor 3, a driving motor 3 is installed at the top of furnace body 2, driving motor 3's output shaft stretches into in the furnace body 2, the lower extreme of driving motor 3's output shaft is fixed with a circulating fan 4, the winding has circulating pipe 8 on driving motor 3's the output shaft, it has the cooling water to let in circulating pipe 8, circulating pipe 8 is used for the output shaft cooling for driving motor 3, thereby indirectly play certain cooling effect to circulating fan 4.
The above prior art solutions have the following drawbacks: when circulating fan rotated in the furnace body, because the temperature in the furnace body is higher, made circulating fan be in the state of high temperature for a long time, made the epaxial temperature reduction of output through circulating pipe, and indirectly cooled down circulating fan, radiating efficiency and the effect of this kind of mode are lower, and relatively waste water resource, so wait to improve.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a destressing annealing furnace has the advantage to circulating fan's radiating efficiency height, effectual and water economy resource.
The above object of the present invention can be achieved by the following technical solutions: a stress relief annealing furnace comprising: a frame, a furnace body, a driving motor, a circulating fan and an aluminum heat dissipation group,
the furnace body install in the frame, the inside cavity of furnace body, the furnace body includes: the furnace comprises a furnace top, a furnace bottom and a furnace body, wherein the furnace top and the furnace bottom are fixedly connected with the furnace body in a sealing way,
the driving motor is arranged at the center of the furnace top, a mounting hole is arranged at the center of the upper surface of the furnace top, an output shaft of the driving motor penetrates through the mounting hole, the output shaft of the driving motor and the mounting hole are coaxial,
the output shaft of the driving motor stretches into the interior of the furnace body, the output shaft of the driving motor is fixedly provided with the circulating fan, the circulating fan is located in the furnace body, the output shaft of the driving motor is close to the opening of the mounting hole, the aluminum heat dissipation group is detachably arranged on the opening of the mounting hole, the aluminum heat dissipation group is made of aluminum materials, one part of the aluminum heat dissipation group protrudes out of the furnace top, and the other part of the aluminum heat dissipation group is accommodated in the furnace body.
By adopting the technical scheme, the furnace top, the furnace bottom and the furnace body on the furnace body are fixedly connected in a sealing way, so that the air valve in the furnace body is in a relatively sealed environment, and the air valve is conveniently annealed; when the driving motor is started, the output shaft of the driving motor starts to rotate, compared with a common annealing furnace, the aluminum heat dissipation group is additionally arranged on the driving motor, the mounting hole for mounting the aluminum heat dissipation group is additionally arranged at the position of the furnace top, when the output shaft of the driving motor rotates and then drives the circulating fan to rotate, the circulating fan can enable the heat in the furnace body to be uniformly distributed, the aluminum heat dissipation group also synchronously rotates, the heat on the circulating fan can be directly transferred to the output shaft of the driving motor, the output shaft of the driving motor directly transfers the heat to the aluminum heat dissipation group, the aluminum material has good heat conduction performance, the aluminum heat dissipation group can better absorb the heat on the output shaft of the driving motor, one part of the aluminum heat dissipation group positioned in the furnace body can drive the heat to the periphery of the mounting hole, and meanwhile, one part of the aluminum heat dissipation group protruding out of the furnace top is utilized, the temperature of the circulating fan is effectively reduced, so that the service life of the circulating fan is prolonged, the heat dissipation efficiency is high, the heat dissipation effect is good, a water cooling heat dissipation mode is not used, and water resources are saved.
The utility model is further arranged in that the aluminum heat dissipation group comprises an upper blade, a lower blade and an arc-shaped disc,
the two arc-shaped discs are provided, a plurality of upper blades are uniformly arranged on the upper surface of each arc-shaped disc at intervals, a plurality of lower blades are also uniformly arranged on the lower surface of each arc-shaped disc at intervals, and the upper blades and the lower blades are vertically arranged,
two the arc dish splices into a ring dish, driving motor's output shaft run through in the ring dish, just driving motor's output shaft's external diameter with the inner ring external diameter of ring dish is unanimous, two the last blade at arc dish both ends is laminated mutually and is all seted up corresponding screw hole, the internal thread of screw hole is equipped with locking screw, locking screw runs through in corresponding the threaded hole.
Through adopting above-mentioned technical scheme, two arc dishes splice into a ring dish, the inner ring of ring dish just supplies driving motor's output shaft to run through, the upper and lower surface of two arc dishes provides a suitable mounted position for last blade and lower blade, when aluminium system cooling unit is changed to needs, the locking screw on going up the blade is unscrewed and is taken out, then with two arc dishes from driving motor's output shaft take off can, two arc dishes are removable to be installed on driving motor's output shaft, make things convenient for the later stage to dismantle and change aluminium system cooling unit, the structure is more stable, firm, it is convenient to dismantle.
The utility model discloses further set up to, this equipment still includes: boss and support frame, the boss with the support frame all is used for stabilizing driving motor, the boss be the ring form and set up in the upper surface central point of furnace roof puts, the inner ring of boss with the mounting hole size is unanimous, just the boss with the axle center setting of mounting hole, the support frame is installed to the upper surface week side of boss, the support frame is used for supporting driving motor, support frame circumference is provided with a plurality of heat dissipation breach.
Through adopting above-mentioned technical scheme, the inner ring of boss and the size of mounting hole are unanimous, thereby can not influence the normal rotation of aluminium system heat dissipation group, and boss and support frame enable driving motor's structure more stable, make driving motor can not take place the condition of rocking in the course of the work, the heat that the heat dissipation breach can supply on the aluminium system heat dissipation group is discharged from a plurality of directions, and the radiating efficiency has been accelerated, still avoided damaging driving motor's problem because of the heat gathering around the mounting hole, driving motor's life has been prolonged.
The utility model discloses further set up as, the support frame includes: a support pier and a support leg, wherein,
driving motor's main part removable install in just be located on the support mound directly over the mound, driving motor's output shaft vertical run through in support mound, the bottom week side of supporting the mound is provided with a plurality of supporting legs, the supporting leg is the right angle shape, the one end of supporting leg is fixed in support mound's bottom week side, a plurality of recesses have been seted up to the upper surface a week of boss, the other end of supporting leg peg graft in just welded fastening in the recess.
Through adopting above-mentioned technical scheme, driving motor is detachable, makes things convenient for the dismantlement and the installation in driving motor later stage, and the supporting leg structure of right angle shape is more firm, and the recess makes things convenient for supporting leg and boss to pass through the more firm connection of welded mode and is in the same place, and the supporting leg setting is in the bottom a week of supporting the mound, and the atress of supporting the mound is more even, makes the structure of whole support frame more stable, firm.
The utility model discloses further set up to, install a plurality of sleeves on the support mound, install on driving motor's the outer wall week along with sleeve quantity unanimous, and the position with the corresponding inserted bar in telescopic position, the inserted bar can insert in the sleeve, set up threaded hole on the telescopic outer wall, threaded hole runs through to the tight screw, support the inner of tight screw support tightly in on the inserted bar.
Through adopting above-mentioned technical scheme, when driving motor was dismantled to needs, the screw that supports on each sleeve was unscrewed earlier and was taken out, then upwards lifts up driving motor, makes the inserted bar break away from in the sleeve can, above-mentioned project organization is more firm, the dismantlement mode is simple, convenient.
The utility model discloses further set up to, the external diameter of ring dish is less than the external diameter of mounting hole, just the upper surface of ring dish with the upper surface of boss flushes mutually.
Through adopting above-mentioned technical scheme, the ring dish can be normal rotate in the mounting hole, and the ring dish flushes with the last plane of boss mutually, makes last blade on the ring dish can protrusion in the furnace roof makes things convenient for the last blade to discharge the heat in the furnace body, and above-mentioned project organization is fairly simple, stable.
The utility model discloses further set up as, the boss is fixed in through a plurality of locking bolts on the furnace roof.
Through adopting above-mentioned technical scheme, above-mentioned project organization is more stable, firm, and the locking bolt can make removable fixed connection of boss and furnace roof, makes things convenient for the dismantlement and the maintenance in driving motor later stage.
The utility model discloses further set up to, go up the blade and seted up a plurality of louvres.
By adopting the technical scheme, the radiating holes increase the contact area between the upper blades and the cold air, so that the heat exchange on the upper blades can be accelerated, and the circulating fan has higher radiating speed and better radiating effect.
To sum up, the utility model discloses a beneficial technological effect does:
firstly, an aluminum radiating set is detachably mounted on an output shaft of a driving motor, and the output shaft of the driving motor drives the aluminum radiating set to rotate, so that the temperature around the circulating fan is reduced, the radiating efficiency is high, and the effect is good;
and secondly, the inserted bar on the driving motor and the sleeve on the support pier are detachably arranged on the support frame through abutting against a screw, the structure is firmer, and the later-stage disassembly and replacement of the driving motor are facilitated.
Drawings
FIG. 1 is a schematic diagram of a prior art configuration;
FIG. 2 is a schematic structural view of the present invention;
fig. 3 is a schematic structural view of the middle support frame and the aluminum heat dissipation assembly of the present invention.
Reference numerals: 1. a frame; 2. a furnace body; 21. a furnace roof; 211. mounting holes; 22. a furnace bottom; 23. a furnace body; 3. a drive motor; 31. inserting a rod; 4. a circulation fan; 5. an aluminum heat dissipation group; 51. an upper blade; 511. heat dissipation holes; 52. a lower blade; 53. an arc-shaped tray; 54. locking the screw; 6. a boss; 61. locking the bolt; 7. a support frame; 71. supporting piers; 711. a sleeve; 712. tightly abutting the screw; 72. supporting legs; 8. and a circulating water pipe.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
With reference to fig. 2 and 3, the present invention discloses a destressing annealing furnace, which includes: frame 1, furnace body 2, driving motor 3, circulating fan 4 and aluminium system cooling group 5, 1 bottoms of frame are supported through four table legs, and furnace body 2 installs in frame 1, and furnace body 2 partly runs through in the bottom of frame 1, has certain firm effect to furnace body 2, and furnace body 2 mainly is made by steel, 2 inside hollows of furnace body, and furnace body 2 includes: the furnace top 21, the furnace bottom 22 and the furnace body 23, the furnace top 21 and the furnace bottom 22 are fixedly connected with the furnace body 23 in a sealing way, the driving motor 3 is arranged at the central position of the furnace top 21, the driving motor 3 is a high temperature resistant motor which is made of high temperature resistant insulating materials and can ensure that the driving motor 3 can run safely under high temperature environment, the driving motor is not aged and burnt, the central position of the upper surface of the furnace top 21 is provided with a mounting hole 211, the output shaft of the driving motor 3 penetrates through the mounting hole 211, the output shaft of the driving motor 3 is coaxial with the mounting hole 211, the output shaft of the driving motor 3 extends into the furnace body 2, the output shaft of the driving motor 3 is fixed with a circulating fan 4, the circulating fan 4 is arranged at the bottom end of the output shaft of the driving motor 3 and is provided with 3 fan blades, the circulating fan 4 is arranged in the furnace body 2, and an opening of the output shaft, the aluminum heat dissipation set 5 is made of aluminum, a part of the aluminum heat dissipation set 5 protrudes out of the furnace top 21, and the other part of the aluminum heat dissipation set 5 is accommodated in the furnace body 2.
Aluminium system cooling group 5 includes last blade 51, lower blade 52 and arc disc 53, arc disc 53 is provided with two, the even interval arrangement of upper surface of arc disc 53 has five last blade 51, it is the rectangle form to go up blade 51 and lower blade 52, the same even interval arrangement of lower surface of arc disc 53 has five lower blade 52, and go up blade 51 and the equal vertical arrangement of lower blade 52, a ring disc is spliced into to two arc discs 53, driving motor 3's output shaft runs through in the ring disc, and the external diameter of driving motor 3's output shaft is unanimous with the inner ring external diameter of ring disc, the last blade 51 at two arc disc 53 both ends laminates mutually and all has seted up corresponding screw hole, the internal thread of screw hole is equipped with locking screw 54, locking screw 54 runs through in the screw hole that corresponds. Two arc dishes 53 splice into a ring dish, the inner ring of ring dish just supplies driving motor 3's output shaft to run through, two arc dishes 53's upper and lower surface provides a suitable mounted position for last blade 51 and lower blade 52, when aluminium system cooling group 5 is changed to needs, the locking screw 54 on going up blade 51 is unscrewed and is taken out, with two arc dishes 53 from driving motor 3's output shaft take off can, two arc dishes 53 are removable to be installed on driving motor 3's output shaft, make things convenient for the later stage to dismantle and change aluminium system cooling group 5, the structure is more stable, and is firm, and the dismantlement is convenient.
The apparatus further comprises: boss 6 and support frame 7, boss 6 and support frame 7 all are used for firm driving motor 3, boss 6 and support frame 7 are made by stainless steel, boss 6 is the ring form and sets up in the upper surface central point of furnace roof 21 and puts, the inner ring of boss 6 is unanimous with mounting hole 211 size, and boss 6 sets up with the axle center with mounting hole 211, support frame 7 is installed to the upper surface week side of boss 6, support frame 7 is used for supporting driving motor 3, support frame 7 circumference is provided with a plurality of heat dissipation breachs. The inner ring of boss 6 is unanimous with the size of mounting hole 211, thereby can not influence the normal rotation of aluminium system heat dissipation group 5, and boss 6 and support frame 7 enable driving motor 3's structure more stable, make driving motor 3 can not take place the condition of rocking in the course of the work, the heat dissipation breach can supply the heat on the aluminium system heat dissipation group 5 to discharge from a plurality of directions, the radiating efficiency has been accelerated, still avoided damaging driving motor 3's problem around mounting hole 211 because of the heat gathering, driving motor 3's life has been prolonged.
The support frame 7 includes: support mound 71 and supporting leg 72, driving motor 3's major part is removable to be installed on supporting mound 71 and be located supporting mound 71 directly over, driving motor 3's the vertical output shaft that runs through in supporting mound 71, supporting mound 71's bottom week side is provided with six supporting legs 72 through the welded mode (in other embodiments, the quantity of supporting leg 72 can the adaptability increase and decrease), supporting leg 72 is the right angle shape, the one end welded fastening of supporting leg 72 is in the bottom week side of supporting mound 71, six recesses have been seted up to upper surface a week of boss 6, the other end of supporting leg 72 is pegged graft in recess and welded fastening. Driving motor 3 is detachable, makes things convenient for the dismantlement and the installation in driving motor 3 later stage, and the supporting leg 72 structure of right angle shape is more firm, and the recess makes things convenient for supporting leg 72 and boss 6 to pass through the more firm connection of welded mode together, and supporting leg 72 sets up in the bottom a week of supporting pier 71, and the atress of supporting pier 71 is more even, makes the structure of whole support frame 7 more stable, firm.
Six sleeves 711 are installed on the support pier 71 in a welding manner, the insertion rods 31 which are the same as the sleeves 711 in number and correspond to the sleeves 711 in position are installed on the outer wall periphery of the driving motor 3 (in other embodiments, the number of the sleeves 711 and the number of the insertion rods 31 can be increased or decreased in an adaptive manner), the insertion rods 31 can be inserted into the sleeves 711, threaded holes are formed in the outer wall of the sleeves 711, the fastening screws 712 penetrate through the threaded holes, and the inner ends of the fastening screws 712 are fastened on the insertion rods 31. When the driving motor 3 needs to be disassembled, the abutting screw 712 on each sleeve 711 is loosened and taken out, and then the driving motor 3 is lifted upwards to separate the inserted rod 31 from the sleeves 711.
The external diameter of ring dish is less than the external diameter of mounting hole 211, and the difference between the two is about 10mm, and the upper surface of ring dish flushes with the upper surface of boss 6 mutually. The ring dish can be normal at the mounting hole 211 internal rotation, and the ring dish flushes with the last plane of boss 6 mutually, makes last blade 51 on the ring dish can protrusion in furnace roof 21, makes things convenient for last blade 51 to discharge the heat in furnace body 2, and above-mentioned project organization is fairly simple, stable.
The boss 6 is secured to the roof 21 by six locking bolts 61 (in other embodiments the number of locking bolts 61 may be adapted). Above-mentioned project organization is more stable, firm, and locking bolt 61 can make the removable fixed connection of boss 6 and furnace roof 21, makes things convenient for the dismantlement and the maintenance in driving motor 3 later stage.
The upper blade 51 is formed with a plurality of heat radiating holes 511. The heat radiation holes 511 increase the contact area between the upper blade 51 and the cool air, and can accelerate the heat exchange on the upper blade 51, so that the heat radiation speed of the circulation fan 4 is faster and the heat radiation effect is better.
The implementation principle of the embodiment is as follows: the furnace top 21, the furnace bottom 22 and the furnace body 23 on the furnace body 2 are fixedly connected in a sealing way, so that the air valve in the furnace body 2 is in a relatively sealed environment, and the air valve is conveniently annealed; after the driving motor 3 is started, the output shaft of the driving motor 3 starts to rotate, compared with a common annealing furnace, the aluminum heat dissipation group 5 is additionally arranged on the driving motor 3, the mounting hole 211 for mounting the aluminum heat dissipation group 5 is additionally arranged at the position of the furnace top 21, when the output shaft of the driving motor 3 rotates and then drives the circulating fan 4 to rotate, the circulating fan 4 can enable the heat in the furnace body 2 to be uniformly distributed, meanwhile, the aluminum heat dissipation group 5 also synchronously rotates, the heat on the circulating fan 4 can be directly transferred to the output shaft of the driving motor 3, the output shaft of the driving motor 3 directly transfers the heat to the aluminum heat dissipation group 5, the aluminum material has good heat conduction performance, the aluminum heat dissipation group 5 can better absorb the heat on the output shaft of the driving motor 3, a part of the aluminum heat dissipation group 5 in the furnace body 2 can drive the heat to the periphery of the mounting hole 211, and simultaneously, a part of the aluminum heat dissipation group 5 protruding out of the furnace top 21 is, the temperature of the circulating fan 4 is effectively reduced, so that the service life of the circulating fan 4 is prolonged, the heat dissipation efficiency is high, the heat dissipation effect is good, a water cooling heat dissipation mode is not used, and the water resource is saved.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. A stress relief annealing furnace, comprising: a frame (1), a furnace body (2), a driving motor (3), a circulating fan (4) and an aluminum heat dissipation group (5),
furnace body (2) install in on frame (1), the inside cavity of furnace body (2), furnace body (2) include: the furnace comprises a furnace top (21), a furnace bottom (22) and a furnace body (23), wherein the furnace top (21) and the furnace bottom (22) are fixedly connected with the furnace body (23) in a sealing way,
the driving motor (3) is arranged at the center of the furnace top (21), a mounting hole (211) is formed in the center of the upper surface of the furnace top (21), an output shaft of the driving motor (3) penetrates through the mounting hole (211), the output shaft of the driving motor (3) and the mounting hole (211) are coaxial,
the output shaft of driving motor (3) stretches into inside furnace body (2), be fixed with on the output shaft of driving motor (3) circulating fan (4), circulating fan (4) are located in furnace body (2), the output shaft of driving motor (3) is close to the opening part removable the being provided with of mounting hole (211) aluminium system cooling group (5), aluminium system cooling group (5) are made by the aluminium material, partly protrusion in furnace roof (21) of aluminium system cooling group (5), another part of aluminium system cooling group (5) hold in furnace body (2).
2. The stress-relief annealing furnace according to claim 1, characterized in that the aluminum heat-dissipating group (5) comprises an upper blade (51), a lower blade (52) and an arc-shaped disc (53),
the number of the arc-shaped discs (53) is two, a plurality of upper blades (51) are uniformly arranged on the upper surface of each arc-shaped disc (53) at intervals, a plurality of lower blades (52) are also uniformly arranged on the lower surface of each arc-shaped disc (53) at intervals, the upper blades (51) and the lower blades (52) are vertically arranged,
two arc dish (53) splice into a ring dish, the output shaft of driving motor (3) run through in the ring dish, just the external diameter of output shaft with the inner ring external diameter of ring dish is unanimous, two last blade (51) at arc dish (53) both ends laminate mutually and all offer corresponding screw hole, the internal thread of screw hole is equipped with locking screw (54), locking screw (54) run through in corresponding the screw hole.
3. The stress relief annealing furnace according to claim 2, further comprising: boss (6) and support frame (7), boss (6) with support frame (7) all are used for the firm driving motor (3), boss (6) are the ring form and set up in the upper surface central point of furnace roof (21) puts, the inner ring of boss (6) with mounting hole (211) size is unanimous, just boss (6) with mounting hole (211) set up with the axle center, support frame (7) are installed to the upper surface week side of boss (6), support frame (7) are used for supporting driving motor (3), support frame (7) circumference is provided with a plurality of heat dissipation breach.
4. A stress relief annealing furnace according to claim 3, characterized in that said supporting frame (7) comprises: a support pier (71) and a support leg (72),
the main part of driving motor (3) removable install in just be located on support mound (71) directly over, the output shaft of driving motor (3) vertical run through in support mound (71), the bottom week side of support mound (71) is provided with a plurality of supporting legs (72), supporting leg (72) are right angle shape, the one end of supporting leg (72) is fixed in support mound (71) bottom week side, a plurality of recesses have been seted up to upper surface a week of boss (6), the other end of supporting leg (72) peg graft in the recess and welded fastening.
5. The stress-relief annealing furnace according to claim 4, characterized in that a plurality of sleeves (711) are mounted on the support pier (71), insertion rods (31) which are consistent in number with the sleeves (711) and correspond to the sleeves (711) in position are mounted on the outer wall periphery of the driving motor (3), the insertion rods (31) can be inserted into the sleeves (711), threaded holes are formed in the outer wall of the sleeves (711), abutting screws (712) penetrate through the threaded holes, and the inner ends of the abutting screws (712) abut against the insertion rods (31).
6. The stress-relief annealing furnace according to claim 3, characterized in that the outer diameter of the ring disc is smaller than the outer diameter of the mounting hole (211), and the upper surface of the ring disc is flush with the upper open surface of the boss (6).
7. A stress relief annealing furnace according to claim 3, characterized in that said boss (6) is fixed to said furnace roof (21) by means of a plurality of locking bolts (61).
8. The stress-relief annealing furnace according to claim 2, wherein the upper blade (51) is provided with a plurality of louvers (511).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921516960.8U CN210856241U (en) | 2019-09-11 | 2019-09-11 | Stress-relief annealing furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921516960.8U CN210856241U (en) | 2019-09-11 | 2019-09-11 | Stress-relief annealing furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210856241U true CN210856241U (en) | 2020-06-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921516960.8U Active CN210856241U (en) | 2019-09-11 | 2019-09-11 | Stress-relief annealing furnace |
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| Country | Link |
|---|---|
| CN (1) | CN210856241U (en) |
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2019
- 2019-09-11 CN CN201921516960.8U patent/CN210856241U/en active Active
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