CN112899462B - Ring die heat treatment process and processing equipment thereof - Google Patents
Ring die heat treatment process and processing equipment thereof Download PDFInfo
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- CN112899462B CN112899462B CN202110074870.3A CN202110074870A CN112899462B CN 112899462 B CN112899462 B CN 112899462B CN 202110074870 A CN202110074870 A CN 202110074870A CN 112899462 B CN112899462 B CN 112899462B
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/40—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for rings; for bearing races
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D11/00—Process control or regulation for heat treatments
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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Abstract
The application relates to the field of ring die heat treatment, and discloses a ring die heat treatment process, which comprises the following steps: step one, hoisting a workpiece into a heating furnace body, heating the workpiece at a constant speed until the temperature in the heating furnace body is 600 ℃, and preserving heat for 1.5 hours; step two, raising the temperature in the heating furnace body to 880 ℃ at a constant speed, and preserving the heat for 1.5 hours; step three, raising the temperature in the heating furnace body to 980 ℃ at a constant speed, and preserving the heat for 1 hour; step four, raising the temperature in the heating furnace body to 1040 ℃ at a constant speed, and preserving the heat for 1 hour; spraying liquid nitrogen on the workpiece, and cooling the workpiece until the temperature of the workpiece is 25 ℃; moving the workpiece from the heating furnace body to a tempering furnace body, heating the workpiece at a constant speed until the temperature in the tempering furnace body is 200 ℃, and preserving heat for 8 hours; and seventhly, moving the workpiece out of the tempering furnace body, and naturally cooling the workpiece to room temperature. This application has the mechanical properties that effectively provides the ring die work piece through thermal treatment processing, and thermal treatment is convenient and efficient effect.
Description
Technical Field
The application relates to the field of ring die heat treatment, in particular to a ring die heat treatment process and processing equipment thereof.
Background
The ring mould is a porous quick-wear part applied to a granulator, and has the advantages of thin wall, dense distribution of mould holes and high assembly size precision. A single granulator will normally be equipped with several spare ring moulds at the same time, with ring moulds installed. When the ring mould that uses at present damages, the user can conveniently change the ring mould to maintain the normal processing of granulation machine and use. The ring die workpiece is arranged in a ring shape, and the processing flow of the workpiece generally comprises forging, rough machining, heat treatment, finish machining and sand blasting.
The heat treatment of the ring die workpiece generally comprises primary quenching, primary tempering, secondary quenching and secondary tempering, and the cooling modes in the primary quenching and the secondary quenching are water cooling.
In view of the above-mentioned related technologies, the inventors believe that the repeated quenching and tempering alternately and firmly improve the metal properties of the ring die workpiece, but the ring die workpiece needs to repeatedly move in the heating furnace body and the cooling water, and has the defect of low heat treatment efficiency.
Disclosure of Invention
In order to improve the condition of low heat treatment efficiency of a ring die workpiece, the application provides a ring die heat treatment process and processing equipment thereof.
In a first aspect, the present application provides a ring mold heat treatment process, which adopts the following technical scheme:
a heat treatment process for a ring die comprises the following steps:
step one, hoisting a workpiece into a heating furnace body, heating the workpiece at a constant speed until the temperature in the heating furnace body is 600 ℃, and preserving heat for 1.5 hours;
step two, raising the temperature in the heating furnace body to 880 ℃ at a constant speed, and preserving the heat for 1.5 hours;
step three, raising the temperature in the heating furnace body to 980 ℃ at a constant speed, and preserving the heat for 1 hour;
step four, raising the temperature in the heating furnace body to 1040 ℃ at a constant speed, and preserving the heat for 1 hour;
spraying liquid nitrogen on the workpiece, and cooling the workpiece to the workpiece temperature of 25 ℃;
moving the workpiece from the heating furnace body to a tempering furnace body, heating the workpiece at a constant speed until the temperature in the tempering furnace body is 200 ℃, and preserving heat for 8 hours;
and seventhly, moving the workpiece out of the tempering furnace body, and naturally cooling the workpiece to room temperature.
By adopting the technical scheme, repeated quenching and tempering are replaced by staged temperature rise and heat preservation, liquid nitrogen cooling of the workpiece and tempering treatment, the exposure times of the ring die workpiece outside the furnace body are effectively reduced while the metallographic structure of the ring die workpiece is adjusted to have specified mechanical properties, the displacement times of the ring die workpiece inside and outside the furnace body are reduced, the heat treatment processing is convenient, and the interference factors of the heat treatment quality are reduced.
Optionally, in the sixth step, a heating furnace door of the heating furnace body is opened first, the workpiece is moved out of the heating furnace body, cold air in the heating furnace body is pumped away while the heating furnace door is opened and the workpiece is moved out, the workpiece is further suspended in the tempering furnace body, the workpiece is heated at a constant speed until the temperature in the tempering furnace body is 200 ℃, and the temperature is kept for 8 hours.
Through adopting above-mentioned technical scheme, air conditioning when cooling the work piece fast is in time retrieved, is difficult for influencing the work piece and carries out tempering treatment after cooling fast, retrieves air conditioning and can be applied to the cooling processing in other places, and the feature of environmental protection is good.
In a second aspect, the present application provides a processing apparatus applied to the above ring mold heat treatment process, which adopts the following technical scheme:
the processing equipment comprises a heating furnace body, a tempering furnace body and a moving seat arranged on the ground in a sliding mode, wherein the moving seat is used for bearing and displacing workpieces, a lifting seat is vertically and slidably arranged on the moving seat, a suspension piece used for suspending the workpieces is fixedly arranged on the lifting seat, a lifting mechanism used for controlling the lifting seat to lift is arranged on the moving seat, a moving mechanism used for driving the moving seat to slide between the heating furnace body and the tempering furnace body in a reciprocating mode is arranged on a rack, a heating furnace door is movably arranged at the top of the heating furnace body, a tempering furnace door is movably arranged at the top of the tempering furnace body, a master controller used for controlling the lifting mechanism, the moving mechanism, the heating furnace door to move and the tempering furnace door to move is further arranged in the master controller, and a timing module is arranged in the master controller.
By adopting the technical scheme, the workpiece can be automatically moved inside and outside the heating furnace body and inside and outside the tempering furnace body through the sliding of the moving seat, the moving mechanism, the sliding of the lifting seat, the lifting mechanism and the master controller, so that the automation degree is high, the heat treatment is convenient, and the heat treatment efficiency is high.
Optionally, the suspension member includes a beam rod fixedly connected to the lifting seat, a suspension rod is fixedly disposed on the beam rod, a heat insulation mechanism and a suspension mechanism are disposed on the suspension rod, the suspension mechanism is used for suspending and fixedly disposing the workpiece at the bottom of the suspension rod, and the heat insulation mechanism is used for preventing heat at the workpiece from being conducted to the beam rod and the lifting seat.
By adopting the technical scheme, the suspension mechanism enables the workpiece and the suspension rod to be conveniently disassembled and assembled, the heat insulation mechanism enables the cross beam rod and the lifting seat to be difficult to change in mechanical property due to heat energy, and the processing equipment is good in structural stability and stable in using effect.
Optionally, the suspension mechanism includes a suspension hook connected to the suspension rod, the suspension rod is rotatably connected to a locking seat, the locking seat is slidably connected to a locking hook for preventing the workpiece from being separated from the suspension hook, and the locking seat is provided with a locking assembly for controlling the locking hook to slide.
Through adopting above-mentioned technical scheme, the user hangs the work piece through hanging in midair the hook to through the rotation of locking seat, the slip of locking hook and locking subassembly make the locking hook can reverse hook hang the work piece, and then the work piece by two-way spacing and can't with the suspension rod separation, the stability of hanging in midair of work piece is good.
Optionally, the locking subassembly includes the locking pole with the locking hook rotation phase even, the locking pole runs through the locking seat, swivelling joint has the lock ring that links to each other with the locking pole screw thread on the locking seat, swivelling joint has the control shaft that links to each other through the gear engagement transmission with the lock ring on the locking seat, be provided with the stabilizing part who is used for fixed control shaft rotation angle on the locking seat.
Through adopting above-mentioned technical scheme, user's rotation control axle can drive the lock ring rotatory, drives the rotation of lock pole and displacement then, drives the locking hook and slides, can fix the sliding position of locking hook promptly through the rotation angle of stabilizing the part fixed control axle.
Optionally, one end of the control shaft extends to the outside of the locking seat, the stabilizing member includes a stabilizing gear fixedly disposed on a portion of the control shaft located outside the locking seat, a stabilizer bar is rotatably connected to the locking seat, a stabilizing cylinder is slidably sleeved on the stabilizer bar, a stabilizing spring for preventing the stabilizer bar and the stabilizing cylinder from sliding away from each other is disposed between the stabilizer bar and the stabilizing cylinder, and an inner gear ring engaged with the stabilizing gear is rotatably connected to the stabilizing cylinder.
By adopting the technical scheme, whether the inner gear ring is meshed with the stabilizing gear is controlled by the rotation of the stabilizing rod, the sliding of the stabilizing cylinder, the traction of the stabilizing spring and the rotation of the inner gear ring, and whether the rotation angle of the control shaft is fixed is controlled by the meshing of the inner gear ring and the stabilizing gear.
Optionally, a weight reduction cavity is formed in the suspension rod, a steel chain penetrates through the suspension rod along the self axial direction, the end portion of the steel chain is connected with the suspension rod in a welded mode, the heat insulation mechanism comprises an aerogel felt coated on the steel chain, the weight reduction cavity is filled with the aerogel felt, and a high-temperature-resistant heat insulation coating layer is coated on the suspension rod.
Through adopting above-mentioned technical scheme, subtract the setting up of heavy cavity and steel chain and make the suspension pole still can satisfy the total weight reduction under the condition of user demand at tractive intensity, aerogel felt and high temperature resistant thermal-insulated dope layer effectively reduce the coefficient of heat conductivity of suspension pole, crossbeam pole and lift seat are difficult for because of heat energy or tractive force are too big deformation to the damage, also be difficult for because of heat energy and mechanical properties change, the effect that drives the work piece displacement through the lift seat is stable, this processing equipment's structural stability is stable.
Optionally, a liquid nitrogen spraying nozzle is arranged in the heating furnace body, the liquid nitrogen spraying nozzle is sequentially connected with an input control valve, a liquid nitrogen input pump and a liquid nitrogen storage bottle, an air suction opening is formed in the heating furnace body, and the air suction opening is sequentially connected with an air suction pump and an air conditioning recovery box.
Through adopting above-mentioned technical scheme, spray mouth, liquid nitrogen input pump, input control valve and liquid nitrogen storage bottle through the liquid nitrogen and constitute liquid nitrogen and spray cooling system, the cooling process accessible liquid nitrogen of heat treatment process realizes, the air conditioning recovery system that remaining air conditioning accessible extraction opening, aspiration pump and air conditioning collection box constitute after the cooling retrieves, the interference of liquid nitrogen cooling to follow-up heat treatment process is little, but retrieve air conditioning reuse, the feature of environmental protection is good.
Optionally, an annular rail surrounding the heating furnace body and the tempering furnace body is arranged on the ground, the rail is used for being slidably connected with the moving seats, the moving seats are arranged on the rail in number, the moving mechanism comprises a moving trolley fixedly connected with the moving seats, and the moving trolley is driven by a motor to work.
By adopting the technical scheme, the moving of the moving seat is realized through the moving trolley, when a workpiece is in tempering treatment in the tempering furnace body, the heating furnace body can perform heating treatment on another workpiece, the processing equipment can perform heat treatment processing on multiple workpieces at the same time, and the processing efficiency is high.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the metallographic structure of the ring die workpiece is gradually improved through stepped temperature rise, repeated quenching and tempering are not needed, and the ring die workpiece is convenient to heat treat and high in efficiency;
2. the automatic moving of the workpiece in the heat treatment process is realized through the moving seat displacement, the lifting seat displacement and the master controller, the labor is saved, and the heat treatment processing efficiency is high.
Drawings
Fig. 1 is an overall structural diagram of the related art.
Fig. 2 is a schematic overall structure diagram of an embodiment of the present application.
Fig. 3 is a sectional view of the internal structure of the heating furnace body according to the embodiment of the present application.
Fig. 4 is a schematic view of an overall structure of a suspension according to an embodiment of the present application.
FIG. 5 is a cross-sectional view of an embodiment of the present application directed to the internal structure of a stabilization cartridge.
Description of reference numerals: 1. heating the furnace body; 11. heating the oven door; 12. a liquid nitrogen spray nozzle; 13. inputting a control valve; 14. liquid nitrogen input pump; 15. a liquid nitrogen storage bottle; 16. an air extraction opening; 17. an air pump; 18. a cold air recovery box; 2. a tempering furnace body; 21. a tempering furnace door; 3. a track; 31. a moving seat; 32. a lifting seat; 33. a moving mechanism; 34. a lifting mechanism; 4. a suspension; 41. a beam rod; 42. a suspension rod; 421. a weight-reducing cavity; 422. a steel chain; 5. a suspension mechanism; 51. suspending a hook; 52. a locking seat; 53. a locking hook; 54. a locking assembly; 541. a lock lever; 542. a locking ring; 543. a control shaft; 6. a stabilizing member; 61. a stabilizing gear; 62. a stabilizer bar; 63. a stabilizing cylinder; 64. a stabilizing spring; 65. an inner gear ring; 7. a heat insulation mechanism; 71. aerogel blankets; 72. high temperature resistant thermal-insulated coating layer.
Detailed Description
The present application is described in further detail below with reference to figures 1-5.
The embodiment of the application discloses a processing device applied to a ring die heat treatment process.
Referring to fig. 2, a processing apparatus applied to a ring die heat treatment process includes a heating furnace body 1 and a tempering furnace body 2 fixedly arranged on the ground, and both the heating furnace body 1 and the tempering furnace body 2 can heat a workpiece by electric heating and can also insulate the workpiece. The top of the heating furnace body 1 is provided with two heating furnace doors 11 in a split way, the heating furnace doors 11 are rotationally connected with the heating furnace body 1, and the heating furnace doors 11 are driven by a motor to rotate; the top of the tempering furnace body 2 is provided with two tempering furnace doors 21 in a split manner, the tempering furnace doors 21 are rotationally connected with the heating furnace body 1, and the tempering furnace doors 21 are driven by a motor to rotate.
Referring to fig. 3, a liquid nitrogen spraying nozzle 12 for spraying liquid nitrogen onto the ring die workpiece is fixedly arranged on the inner side wall of the heating furnace body 1, the liquid nitrogen spraying nozzle 12 is sequentially connected with a liquid nitrogen input pump 14, an input control valve 13 and a liquid nitrogen storage bottle 15 through pipelines, and the liquid nitrogen input pump 14, the input control valve 13 and the liquid nitrogen storage bottle 15 are all located outside the heating furnace body 1. The heating furnace body 1 is provided with an air extraction opening 16, and the air extraction opening 16 is connected with an air extraction pump 17 and a cold air recovery box 18 in sequence through pipelines. The liquid nitrogen spray nozzle 12, the input control valve 13, the liquid nitrogen input pump 14 and the liquid nitrogen storage bottle 15 form a liquid nitrogen cooling system of the heating furnace body 1, and the heating furnace body 1 can rapidly cool the ring die workpiece through the liquid nitrogen cooling system, so that the heating furnace body 1 and the tempering furnace body 2 can be combined to finish the heat treatment processing of the ring die workpiece.
Referring to fig. 2, in order to facilitate the combined use of the heating furnace body 1 and the tempering furnace body 2, an annular guide rail is arranged on the ground and surrounds the heating furnace body 1 and the tempering furnace body 2, and a plurality of moving seats 31 are slidably arranged on the guide rail. The number of the moving seats 31 may be two or four, but the number of the moving seats 31 may be two, and the number of the moving seats 31 in this embodiment is only the number that can perform the functions of bearing and displacing the ring die workpiece. The transfer base 31 is provided with a transfer mechanism 33 for controlling the sliding of the transfer base 31 along the guide rail, and the transfer mechanism 33 is a transfer cart fixedly connected to the transfer base 31. The moving trolley is arranged on the guide rail and is driven by a motor to work.
Referring to fig. 2, a lifting seat 32 is vertically slidably disposed on the transfer seat 31, and a lifting mechanism 34 for controlling the lifting of the lifting seat 32 is disposed on the transfer seat 31. The lifting mechanism 34 in this embodiment includes a lifting screw connected to the lifting base 32, the lifting screw is rotatably connected to the moving base 31 and is driven to rotate by a motor, and the lifting mechanism 34 may also be a hydraulic cylinder fixed to the moving base 31. The lifting seat 32 is fixedly provided with a suspension part 4 for suspending a ring die workpiece, and also comprises a master controller for controlling the lifting mechanism 34, the moving mechanism 33, the heating mechanism, the movement of the heating furnace door 11 and the movement of the tempering furnace door 21, and the master controller is internally provided with a timing module and a wireless communication module.
A user suspends the ring mould workpiece on the lifting seat 32 through the suspending part 4, the position of the ring mould workpiece is changed through the sliding of the lifting seat 32, the sliding of the lifting mechanism 34 and the moving seat 31 and the moving mechanism 33, the ring mould workpiece is suspended in the heating furnace body 1, the master controller controls the heating furnace door 11 to automatically rotate to the top of the closed heating furnace body 1 through the wireless communication module, and the user can finish the heating, heat preservation and quick cooling processing processes of the ring mould workpiece in the heating furnace body 1. After the ring die workpiece is cooled, a user can recycle cold air through the air exhaust port 16, the air exhaust pump 17 and the cold air recycling tank 18, and the user can move the moving seat 31 and the lifting seat 32 in the same manner to move the ring die workpiece out of the heating furnace body 1 and suspend the ring die workpiece in the tempering furnace body 2 for tempering treatment.
The heat treatment processing of the ring die workpiece can be realized through the operation, the displacement of the ring die workpiece inside and outside the heating furnace body 1 and inside and outside the tempering furnace body 2 is convenient, the automation degree is high, the heat treatment is convenient, and the heat treatment efficiency is high. The processing equipment can simultaneously carry out heat treatment processing on a plurality of ring die workpieces, and the idle rate of the heating furnace body 1 and the tempering furnace body 2 is low. The residual cold air cooled by the liquid nitrogen is recovered, the recovered cold air can be used for heat treatment processing of other workpieces with different heat treatment flows, the utilization rate of the liquid nitrogen is high, and the environmental protection performance of the processing equipment is good.
Referring to fig. 2 and 4, the suspension 4 includes a beam rod 41 fixedly connected to the lifting base 32, and an axis of the beam rod 41 is horizontal. One end of the beam rod 41 is fixedly connected with the lifting seat 32, and the other end of the beam rod 41 is fixedly provided with a suspension rod 42 with a vertical axis. The suspension rod 42 is provided with a suspension mechanism 5, the suspension mechanism 5 is used for suspending and fixedly arranging the ring mould workpiece at the bottom of the suspension rod 42, and holes used for being embedded with the suspension rod 42 are reserved on the heating furnace door 11 and the tempering furnace door 21. The suspension mechanism 5 comprises a suspension hook 51 connected with the bottom end of the suspension rod 42 in a welding way, a locking seat 52 is rotatably connected on the suspension rod 42, and a locking hook 53 used for bidirectionally hooking the suspension hook 51 on the suspension hook 52 is slidably connected on the locking seat 52. The sliding direction of the locking hook 53 is perpendicular to the rotation center line of the locking seat 52, and the locking seat 52 is provided with a locking assembly 54 for fixing the sliding position of the locking hook 53.
The user hangs the ring mould work piece on hanging hook 51, and relative slip locking hook 53 and locking seat 52 catch on the ring mould work piece towards hanging hook 51 rotatory locking seat 52 to locking hook 53 and locking seat 52 to the locking hook 53 that slides relatively, through the sliding position of the fixed locking hook 53 of locking subassembly 54, through the rotation angle of the spacing fixed locking seat 52 of butt. At this time, the positions of the suspension hook 51 and the locking hook 53 are different, the suspension hook 51 and the locking hook 53 hook the ring die workpiece from different directions, and the ring die workpiece is limited in two directions and is suspended on the suspension rod 42. The ring die workpiece and the suspension rod 42 can be detached by reverse operation, and the ring die workpiece is easy to suspend and good in suspension stability.
Referring to fig. 4, the locking assembly 54 includes a locking rod 541 rotatably connected to the locking hook 53, and a sliding rod slidably connected to the locking seat 52 is fixedly welded to the locking hook 53 and axially penetrates through the sliding seat. The locking base 52 is rotatably connected with a locking ring 542 sleeved on the locking rod 541, and the locking ring 542 is in threaded connection with the locking rod 541. The locking seat 52 is rotatably connected with a control shaft 543, and the axis of the control shaft 543 is parallel to the axis of the locking ring 542. The control shaft 543 is in meshing transmission with the locking ring 542 through spur gears, and the locking seat 52 is provided with a stabilizing member 6 for fixing the rotation angle of the control shaft 543.
Referring to fig. 4 and 5, the stabilizing member 6 includes a stabilizing gear 61 coaxially fixed on the control shaft 543, one end of the control shaft 543 near the stabilizing gear 61 extends out of the locking seat 52, and the stabilizing gear 61 is located out of the locking seat 52. A stabilizer bar 62 is rotatably connected to the locking base 52 corresponding to the stabilizer gear 61, the rotation center line of the stabilizer bar 62 is perpendicular to the axial direction of the control shaft 543, one end of the stabilizer bar 62 is rotatably connected to the locking base 52, and the other end of the stabilizer bar 62 is movably sleeved with a stabilizing cylinder 63 along the axial direction thereof. A stabilizing spring 64 is arranged in the stabilizing cylinder 63, one end of the stabilizing spring 64 is fixedly connected with the stabilizing rod 62, the other end of the stabilizing spring 64 is fixedly connected with the stabilizing cylinder 63, and the elastic force of the stabilizing spring 64 prevents the stabilizing cylinder 63 and the stabilizing rod 62 from sliding away from each other. An inner gear ring 65 is rotatably connected to an end of the stabilizing cylinder 63 remote from the locking socket 52, a rotation center line of the inner gear ring 65 is parallel to a rotation center line of the stabilizing bar 62, and the inner gear ring 65 is adapted to be engaged with the stabilizing gear 61.
A user manually rotates the control shaft 543 to drive the locking ring 542 to rotate, drives the locking rod 541 to rotate and drives the locking hook 53 to displace to a specified position, and further rotates the stabilizer bar 62 and the stabilizing barrel 63, rotates the inner gear ring 65 to the position where the inner gear ring 65 is meshed with the stabilizing gear 61, releases the stabilizing barrel 63 and the stabilizer bar 62, drives the stabilizer bar 62 and the stabilizing barrel 63 to relatively slide until the inner gear ring 65 is pulled by the elastic force of the stabilizing spring 64, the inner gear ring 65 is difficult to separate from the stabilizing gear 61, the stabilizing gear 61 cannot rotate due to the abutting limit of the inner gear ring 65, the rotation angle of the control shaft 543 is fixed, and the sliding position of the locking hook 53 is fixed. The sliding control of the locking hook 53 can be realized through the above operation, and the control precision is high and the control effect is good.
Referring to fig. 5, in order to further prolong the service life of the processing equipment, the suspension rod 42 is provided with a heat insulation mechanism 7 for preventing heat at the ring die workpiece from being conducted to the cross beam rod 41 and the lifting seat 32, and the heat insulation mechanism 7 comprises aerogel felt 71 and a high-temperature resistant heat insulation coating layer 72. A weight reducing cavity 421 is arranged in the suspension rod 42, and a steel chain 422 is arranged in the weight reducing cavity 421 in a penetrating way. The aerogel felt 71 is filled in the weight reduction cavity 421 and wraps the steel chain 422, the high-temperature resistant heat insulation coating layer 72 is coated on the outer surface of the suspension rod 42, the coating thickness of the high-temperature resistant heat insulation coating layer 72 in the embodiment is 3 mm, and the high-temperature resistant heat insulation coating layer is made of silicon carbide heat insulation coating.
The weight reduction cavity 421 and the steel chain 422 are arranged, so that the total weight of the suspension rod 42 is reduced under the condition that the pulling strength can still meet the use requirement, and the possibility that the cross beam rod 41 is deformed to be broken is reduced. Aerogel felt 71 and high temperature resistant heat insulating coating layer 72 effectively reduce the coefficient of heat conductivity of suspension rod 42, and the heat energy of work piece, heating furnace body 1 and tempering furnace body 2 department is difficult for on being conducted to crossbeam pole 41 and lift seat 32 via suspension rod 42, and crossbeam pole 41 and lift seat 32 are difficult for deformation or mechanical properties change because of heat energy, and the effect that drives the work piece displacement through lift seat 32 is stable, and this processing equipment's structural stability is stable.
The implementation principle of the processing equipment applied to the ring die heat treatment process in the embodiment of the application is as follows: when the ring die workpiece needs to be processed by heat treatment, the ring die workpiece is hung on the hanging hook 51, the locking hook 53 is rotated and slid to the locking hook 53 to hook the ring die workpiece, the locking assembly 54 fixes the relative position of the ring die workpiece and the hanging rod 42, the ring die workpiece is hung in the heating furnace body 1 through the sliding moving seat 31 and the sliding lifting seat 32, the ring die workpiece is thermally treated by means of heating, heat preservation, liquid nitrogen cooling and the like, the ring die workpiece is taken out and moved into the tempering furnace body 2, and the ring die workpiece is processed by tempering.
The embodiment of the application also discloses a ring die heat treatment process using the processing equipment.
The heat treatment process of the ring mold comprises the following steps:
firstly, hanging a ring mould workpiece on a suspension hook 51, enabling a locking hook 53 to hook the ring mould workpiece by rotating a locking seat 52 and a sliding locking hook 53, enabling the ring mould workpiece to be suspended at a suspension rod 42 due to bidirectional hooking of the locking hook 53 and the suspension hook 51, driving a lifting screw to rotate by a motor, driving a lifting seat 32 and the ring mould workpiece to move upwards, controlling a moving trolley to work by the motor, driving a moving seat 31 and the ring mould workpiece to move along a guide rail by the moving trolley, moving the ring mould workpiece into a heating furnace body 1, automatically rotating a heating furnace door 11 to seal the heating furnace body 1, and raising the temperature in the heating furnace body 1 to 600 ℃ at a constant speed by a heating soil body in an electric heating mode, and preserving the temperature for 1.5 hours.
And step two, raising the temperature in the heating furnace body 1 to 880 ℃ at a constant speed in an electric heating mode, and preserving the heat for 1.5 hours.
And step three, raising the temperature in the heating furnace body 1 to 980 ℃ at a constant speed in an electric heating mode, and preserving the heat for 1 hour.
And step four, raising the temperature in the heating furnace body 1 to 1040 ℃ at a constant speed in an electric heating mode, and preserving the heat for 1 hour.
Step five, a liquid nitrogen input pump 14 and an input control valve 13 are started, liquid nitrogen in a liquid nitrogen storage bottle 15 is sprayed onto the workpiece through a liquid nitrogen spraying nozzle 12, and the workpiece is cooled by the liquid nitrogen until the temperature of the workpiece is 25 ℃;
and sixthly, opening a heating furnace door 11 of the heating furnace body 1, moving the workpiece out of the heating furnace body 1 through upward movement of a lifting seat 32, pumping cold air in the heating furnace body 1 into a cold air recovery box 18 through an air pumping pump 17 while the heating furnace door 11 is opened and the workpiece is moved out, further suspending the workpiece in a tempering furnace body 2 through displacement of the lifting seat 32 and a moving seat 31, automatically rotating the tempering furnace door 21 to the closed tempering furnace body 2, heating at a constant speed until the temperature in the tempering furnace body 2 is 200 ℃ through an electric heating mode, and keeping the temperature for 8 hours.
And seventhly, unscrewing the tempering furnace door 21, moving the ring die workpiece out of the tempering furnace body 2 through the displacement of the lifting seat 32 and the moving seat 31, placing the ring die workpiece beside the tempering furnace body 2, and naturally cooling the ring die workpiece to room temperature.
The metallographic structure of the ring die workpiece is gradually improved through stepped temperature rise, repeated quenching and tempering are not needed, and the heat treatment of the ring die workpiece is convenient and efficient. The cold air when cooling the work piece fast is retrieved in time, is difficult for influencing the work piece and carries out tempering after cooling fast. The displacement of the ring die workpiece between the furnace bodies is small, the displacement is convenient, the control precision of the heat energy borne by the ring die workpiece is higher, the control precision of the temperature of the ring die workpiece is higher, and the heat treatment quality is high.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (6)
1. A processing device applied to a ring die heat treatment process is characterized in that: the device comprises a heating furnace body (1), a tempering furnace body (2) and a moving seat (31) arranged on the ground in a sliding manner, wherein the moving seat (31) is used for bearing and displacing workpieces, a lifting seat (32) is vertically arranged on the moving seat (31) in a sliding manner, a hanging part (4) used for hanging the workpieces is fixedly arranged on the lifting seat (32), a lifting mechanism (34) used for controlling the lifting seat (32) to lift is arranged on the moving seat (31), a tempering moving mechanism (33) used for driving the moving seat (31) to slide between the heating furnace body (1) and the tempering furnace body (2) in a reciprocating manner is arranged on the moving seat (31), a heating furnace door (11) is movably arranged at the top of the heating furnace body (1), a furnace door (21) is movably arranged at the top of the tempering furnace body (2), and the device further comprises a lifting mechanism (34), a moving mechanism (33) and a tempering furnace body (31), The master controller is used for moving the heating furnace door (11) and the tempering furnace door (21), and a timing module is arranged in the master controller;
the suspension part (4) comprises a beam rod (41) fixedly connected with the lifting seat (32), a suspension rod (42) is fixedly arranged on the beam rod (41), a suspension mechanism (5) is arranged on the suspension rod (42), and the suspension mechanism (5) is used for suspending and fixedly arranging a workpiece at the bottom of the suspension rod (42);
the suspension mechanism (5) comprises a suspension hook (51) connected with a suspension rod (42), the suspension rod (42) is rotatably connected with a locking seat (52), the locking seat (52) is slidably connected with a locking hook (53) used for preventing a workpiece from being separated from the suspension hook (51), and a locking assembly (54) used for controlling the locking hook (53) to slide is arranged on the locking seat (52);
locking subassembly (54) include locking pole (541) that link to each other with locking hook (53) rotation, locking pole (541) run through locking seat (52), locking ring (542) that rotationally connect with locking pole (541) screw thread on locking seat (52), rotationally connect with locking ring (542) and pass through control shaft (543) that gear engagement transmission links to each other on locking seat (52), be provided with on locking seat (52) and be used for fixed control shaft (543) rotation angle's stabilizing part (6).
2. The processing equipment applied to the ring die heat treatment process as claimed in claim 1, wherein: the suspension rod (42) is provided with a heat insulation mechanism (7), and the heat insulation mechanism (7) is used for preventing heat at a workpiece from being conducted to the cross beam rod (41) and the lifting seat (32).
3. The processing equipment applied to the ring die heat treatment process as claimed in claim 1, wherein: outside the one end of control shaft (543) extended to locking seat (52), stabilizing means (6) are including setting firmly stabilizing gear (61) on control shaft (543) are located locking seat (52) outer part, swivelling joint is connected with stabilizer bar (62) on locking seat (52), the slip cap is equipped with a stabilizing barrel (63) on stabilizer bar (62), be provided with between stabilizer bar (62) and stabilizing barrel (63) and be used for preventing the two from separating gliding stabilizing spring (64), swivelling joint is connected with ring gear (65) that are used for with stabilizing gear (61) meshing on stabilizing barrel (63).
4. The processing equipment applied to the ring die heat treatment process, according to claim 2, is characterized in that: the suspension rod (42) is internally provided with a weight reducing cavity (421), a steel chain (422) penetrates through the suspension rod (42) along the self axial direction, the end part of the steel chain (422) is connected with the suspension rod (42) in a welding mode, the heat insulation mechanism (7) comprises aerogel felts (71) coated on the steel chain (422), the weight reducing cavity (421) is filled with the aerogel felts (71), and the suspension rod (42) is coated with a high-temperature-resistant heat insulation coating layer (72).
5. The processing equipment applied to the ring die heat treatment process, according to claim 1, is characterized in that: be provided with liquid nitrogen in heating furnace body (1) and spray mouth (12), liquid nitrogen sprays mouth (12) and is connected with input control valve (13), liquid nitrogen input pump (14) and liquid nitrogen storage bottle (15) in order, be provided with extraction opening (16) on heating furnace body (1), extraction opening (16) are connected with aspiration pump (17) and air conditioning collection box (18) in order.
6. The processing equipment applied to the ring die heat treatment process, according to claim 1, is characterized in that: the ground is provided with an annular track (3) surrounding the heating furnace body (1) and the tempering furnace body (2), the track (3) is used for being connected with the moving seats (31) in a sliding mode, the number of the moving seats (31) is a plurality, the moving seats are arranged on the track (3), the moving mechanism (33) comprises a moving trolley fixedly connected with the moving seats (31), and the moving trolley is driven by a motor to work.
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| CN202110074870.3A CN112899462B (en) | 2021-01-20 | 2021-01-20 | Ring die heat treatment process and processing equipment thereof |
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| CN202110074870.3A CN112899462B (en) | 2021-01-20 | 2021-01-20 | Ring die heat treatment process and processing equipment thereof |
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| CN113915811A (en) * | 2021-10-08 | 2022-01-11 | 东台市顺达工业气体有限公司 | Spray cooling unit applied to acetylene gas production process |
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