CN102051451A - Complex-space curved-surface dot-motion induction heating hardening device and method - Google Patents
Complex-space curved-surface dot-motion induction heating hardening device and method Download PDFInfo
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- CN102051451A CN102051451A CN2011100266849A CN201110026684A CN102051451A CN 102051451 A CN102051451 A CN 102051451A CN 2011100266849 A CN2011100266849 A CN 2011100266849A CN 201110026684 A CN201110026684 A CN 201110026684A CN 102051451 A CN102051451 A CN 102051451A
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Abstract
The invention relates to a complex-space curved-surface dot-motion induction heating hardening device and method. The complex-space curved-surface dot-motion induction heating hardening device mainly comprises a numerical control system (4), a five-axis servo mechanism, an induction heater (12) and a cooling liquid sprayer (13), wherein the numerical control system (4) and the five-axis servo mechanism are arranged on a frame; the induction heater (12) and the cooling liquid sprayer (13) are driven by the five-axis servo mechanism to respectively make a three-dimensional continuous motion along the complex-space curved surface of a part; after the induction heater heats the surface of the part to austenite transition temperature, the cooling liquid sprayer sprays out a cooling medium to cool the surface of the part, thereby realizing the hardening reinforcing treatment of the surface of the part. By utilizing the device, the method is realized in a way that: the current frequency, motion speed and route of an induction power source (1) is selected according to the material type and heat treatment technique of the treated part, and the process of heating and cooling on the surface of the part is completed while the induction heater and the cooling liquid sprayer respectively make a three-dimensional continuous dot motion on the surface of the part. The invention can accurately control the depth of hardening layer, and has the advantages of high work efficiency, low loss of heat energy, no pollution and the like; and the surface structure after hardening is uniform.
Description
Technical field
The present invention relates to metallic substance heat treatment technics field, particularly relate to and a kind ofly utilize induction heating and take the suitable type of cooling complex space curved surface to be carried out the quenching method of surface strengthening.
Background technology
At present, part with complex space curved surface is more and more, as: be used for the metal sheet drawing Drawing Die, bending die, be used for the metal pattern of cast form and be used for the profile of moulds such as injection mould, extrusion molding mould, blow die of plastic shaping and ship propeller, aerospacecraft part etc.Along with the widespread usage of multi-axis linkage numerical control machining tool, the surface working precision is also more and more higher.For the serviceability and the work-ing life of improving these parts, to carry out intensive treatment to it usually, make its heart portion have higher shock resistance, and the surface have high hardness and wear resistance.
In the existing processes technology, have for the enhanced processing method of this class part:
(1) complete heat treatment.Its shortcoming is the differentiation enhancement purpose that is difficult to realize part heart portion and surface, and ftractures owing to its complicated space curved surface easily causes stress concentration.
(2) the flame heating surface heat is handled.Heat because flame heating belongs to outer thermal source, the temperature field is difficult to realize that homogenizing and heat-processed are slow, the phenomenon that can cause soft spots or scaling loss, oxidative phenomena to coexist.
(3) the LASER HEATING surface heat is handled.The high energy density that is its main drawback can cause the generation of melt surface or two kinds of extreme cases of zone of heating less than.Generally in order to control fusion or scaling loss, the strengthening layer degree of depth can only be controlled at below the 0.2mm, is difficult to adapt to the specification of quality that quench-hardened case reaches 1-3mm.
(4) thermo-chemical treatment.Adopt methods such as carburizing, nitriding or carbonitriding, this method need be carried out whole heating to part to be processed and is difficult to control surface reinforcement quality for relatively large part.
(5) surface-coated intensifying technology.Surface-coated can cause the part variation of working accuracy owing to need to increase one deck coat-thickness, and the portion parts coating is difficult to satisfy the mechanical property requirement.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of complex space curved surface point type to move induction hardening equipment and method, to solve the problem and shortage that existing surface strengthening technology exists when processing has complex space curved surface class part.
The present invention solves its technical problem and adopts following technical scheme:
Complex space curved surface point type provided by the invention moves induction hardening equipment, it is mainly by being contained in the digital control system on the frame, five servo control mechanisms, and formed by induction heater, the cooling fluid shower nozzle of five servo control mechanisms drivings, wherein: induction heater and cooling fluid shower nozzle are done three-dimensional mobile continuously along the complex space curved surface of part; The induced current that provides by induction power supply is provided in induction heater, piece surface is heated to austenite transformation temperature after, the ejection heat-eliminating medium cools off piece surface from the cooling fluid shower nozzle, realizes that the quenching strengthening of piece surface is handled; Induction power supply and heat-eliminating medium store and the switch of feedway is controlled by digital control system.
Described induction heater is to form with copper tube weldering system, and single turn form, profile are circular or square, and hollow is led to water coolant.
Adopt concentric cable to be connected between described induction heater and the induction power supply, induction power supply provides the 10-40KHz induced current.
Described cooling fluid shower nozzle is made by red copper pipe or stainless pipe, and hollow is led to fluid dielectric coolant; This cooling fluid shower nozzle and heat-eliminating medium store and feedway between adopt hollow metal hose connection, when heat-eliminating medium stores and feedway when opening, the cooling fluid shower nozzle is with spray coolant extremely on the heating surface of processed part.
Described five servo-actuating devices, form by the servo control mechanism on X-axis, Y-axis, Z axle, A axle and C axle five positions respectively, wherein: X-axis, Y-axis, Z axle refer to the rack-mounted all around and the straight line shifting axle of three directions up and down respectively, and A axle and C axle are respectively the vertical surface of bracing frame and two rotating shaftes on the horizontal plane.
Described X-axis, Y-axis and Z axle servo control mechanism are power by X servomotor, Y-axis servomotor, Z axle servomotor respectively, and respectively the speed reduction unit by being attached thereto, ball-screw drive that bracing frame is done side-to-side movement, worktable seesaws and crossbeam do about translational motion, A axle and C axle connect speed reduction unit by A axle servomotor, C axle servomotor respectively and do turning motion, wherein C axle servo control mechanism is installed on the bracing frame, and A axle servo control mechanism is installed on the C axle servo control mechanism output terminal; On the A axle output terminal chuck is housed, this chuck and induction heater and cooling fluid shower nozzle are fixedly linked.
Complex space curved surface point type provided by the invention moves the induction quenching method, specifically: according to the description of materials and the heat treatment performance of processed part, to the desired depth of hardening zone of different parts, surface hardness, make three-dimensional point type at piece surface and move continuously, realize the quenching strengthening processing of piece surface by piece surface heating and process of cooling; Whole quenching strengthening treating processes is to be finished by above-mentioned complex space curved surface quenching device.
Method provided by the invention may further comprise the steps:
A. preparation work:
In the time need carrying out the hard surfacing intensive treatment to part with spatial complex curved surface, the operator earlier preset the frequency parameter of induction power supply according to depth of hardening zone and adjust that heat-eliminating medium stores and feedway in the heat-eliminating medium kind, then according to part surface geometry parameter, material category and reinforcement requirement, to the digital control system input program, carry out the coupling of translational speed, mobile route and the distance of Heating temperature and speed of cooling and induction heater and cooling fluid shower nozzle.
B. to the quenching strengthening of piece surface:
Start complex space curved surface quenching device, digital control system is sent instruction and is opened induction power supply, and induction power supply is powered to induction heater, and the induced current of induction heater and piece surface produce poly-skin benefit, make piece surface be heated to certain temperature; At this moment, the instruction built-in according to digital control system, the electric pump in heat-eliminating medium storage and the feedway is opened, and heat-eliminating medium is sprayed to piece surface by the cooling fluid shower nozzle, makes its quick cooling;
Simultaneously, digital control system requires to send movement instruction to five servo-actuating devices according to built-in translational speed and path program, five of X, Y, Z, A, C are with different speed and timing node motion, form the complex space movement continuously of chuck and fixed induction heater thereof and cooling fluid shower nozzle along processed piece surface, constantly finish heating, process of cooling on the piece surface, the final quenching strengthening of realizing the whole part surface forms predetermined hardened structure.
The frequency parameter that presets induction power supply of the present invention, its frequency values can calculate according to following formula:
In the formula:
Be the depth of hardening zone of piece surface,
Be the induction power supply frequency.
In the described steps A, can be according to matching formula
, the heat-up time and the induction heater translational speed of induction heater are mated, in the formula:
Be heat-up time, unit is second, chooses according to inductive source power, selects little value when power is big, otherwise choosing is value greatly;
Be the length of side or the diameter of induction heater, part curvature is big, selects higher value, otherwise selects smaller value;
Be the translational speed of induction heater and cooling fluid shower nozzle, need the high material of quenching temperature to select little value, otherwise the big value of choosing.
The present invention compared with prior art has following main advantage:
1. send instruction by digital control system, move continuously along the complex space curved surface by servo control mechanism drive inductor block and the cooling spray that can realize five-axle linkage, progressively curved surface is heated, cools off until the quenching strengthening of realizing whole curved surface, required power is little, and can handle space curved surface with different curvature radius, particularly can handle the part of comparatively large vol.
2. according to different treated materials, the influence that curved surface hardness that is obtained after quenching and depth of hardening zone are subjected to induced current, frequency and inductor block and cooling spray translational speed, can be by the convenient reinforcement target that realizes of control above-mentioned parameter, depth of hardening can reach 1-3mm, and quenching hardness is looked the processing material and determined.
3. the translational speed of induction heater and cooling fluid shower nozzle and can drive each servomotor by the universal numerical control system with the distance on processed surface and accurately control, its bearing accuracy can reach ± 0.01 rank.Therefore, its Heating temperature and quenching hardness are evenly distributed along curved surface.
4. can realize that by programming Control the continuous quenching of whole curved surface strengthens according to processed complex-curved geometric properties, automatization, universalization degree height, labour intensity is low.
5. because only to processed piece surface heating and cooling, core structure is unaffected, can realize the purpose of heart portion and surface differences intensive treatment, can't cause the variation of part geometry precision.
In a word, the present invention can carry out surface induction hardening to metal parts complex space curved surface, have and can accurately control depth of hardening zone, the back homogeneous microstructure of quenching, the workpiece degree of oxidation is low, high efficiency, easily be automated, be applicable to various complex-curved quench treatment, it is little that the present invention also has a heat energy loss, do not produce advantages such as pollution, environmental protection.
Description of drawings
Fig. 1 is the structural representation that complex space curved surface point type of the present invention moves induction hardening equipment.
Fig. 2 is a complex space curved surface quenching technology schematic diagram of the present invention.
Among the figure: 1. induction power supply; 2. part; 3. chuck; 4. digital control system; 5. Z axle servomotor; 6. X-axis servomotor; 7. heat-eliminating medium stores and feedway; 8. Y-axis servomotor; 9. worktable; 10. crossbeam; 11. bracing frame; 12. induction heater; 13. cooling fluid shower nozzle; 14. C axle servomotor; 15. A axle servomotor.
Embodiment
In order to understand the present invention better, further illustrate content of the present invention below in conjunction with specific embodiment and accompanying drawing, but content of the present invention not only is confined to the following examples.
Complex space curved surface quenching device provided by the invention, its structure is as shown in Figure 1: mainly by being contained in the digital control system 4 on the frame, five servo control mechanisms, and the induction heater 12, cooling fluid shower nozzle 13 compositions that driven by five servo control mechanisms, wherein: induction heater 12 and cooling fluid shower nozzle 13 are done three-dimensional continuous moving along the complex space curved surface of part 2.The induced current that provides by induction power supply 1 is provided in induction heater 12, part 2 surfaces are heated to austenite transformation temperature after, the ejection heat-eliminating medium cools off part 2 surfaces from cooling fluid shower nozzle 13, realizes the reinforcement on part 2 surfaces.Induction power supply 1 and heat-eliminating medium store and the switch of feedway 7 is subjected to digital control system 4 controls.
Described induction heater 12 is to form with flat copper tube weldering system, the single turn form, and hollow can be led to water coolant.The space curved surface geometry feature different according to processed part, profile have circular and square two kinds of shapes, and the diameter of the quadrate length of side or circle is as far as possible little, can not have wedge angle to occur.Adopt concentric cable to be connected between induction heater 12 and the induction power supply 1.
Connect heat-eliminating medium before the described cooling fluid shower nozzle 13 and store and feedway 7, competent heat-eliminating medium can be provided, this heat-eliminating medium is controlled by digital control system.When heat-eliminating medium stores and feedway 7 when opening, cooling fluid shower nozzle 13 is with spray coolant extremely on the heating surface of processed part.Cooling fluid shower nozzle 13 is made by red copper pipe or stainless pipe, and hollow is led to fluid dielectric coolant, and diameter of bore is about 10mm.Adopt hollow metal hose connection between cooling fluid shower nozzle 13 and heat-eliminating medium storage and the feedway 7.
Described digital control system 4 is that (for example: XH716 type 5-axis machining center) used digital control system (for example: Central China digital control system HNC-22M) for conventional 5-shaft linkage numerical control lathe, having control X-axis servomotor 6, Y-axis servomotor 8 and Z axle servomotor 5 realizes feeding movement and has the function of interlock, simultaneously by its built-in PLC output control signal, the switch of control induction power supply 1 and heat-eliminating medium storage and feedway 7.The inside composition of digital control system 4, structure, working method and conventional Five Axis CNC System are in full accord, just will be used to control instruction output interface sensing induction power supply 1 and the heat-eliminating medium storage and the feedway 7 of main motor and cooling motor.
The movement continuously under five servo-actuating device effects of described induction heater 12 and cooling fluid shower nozzle 13, its movement velocity and track are subjected to digital control system 4 instruction control.
Described five servo-actuating devices are made up of the servo control mechanism on X-axis, Y-axis, Z axle, A axle and C axle five positions respectively.Wherein X-axis, Y-axis, Z axle refer among Fig. 2 all around and the straight line shifting axle of three directions up and down respectively, and A axle and C axle are respectively two rotating shaftes on the vertical surface and horizontal plane among Fig. 2.X-axis, Y-axis and Z axle servo control mechanism are made up of X servomotor 6, Y-axis servomotor 8, Z axle servomotor 5 connection speed reduction units, ball-screw respectively, and drive respectively about bracing frame 11(), before and after the worktable 9() and crossbeam 10(about) moving linearly, A axle and C axle connect speed reduction unit by A axle servomotor 15, C axle servomotor 14 respectively and do turning motion, wherein C axle servo control mechanism is installed on the bracing frame, and A axle servo control mechanism is installed on the C axle servo control mechanism output terminal.Induction heater 12 and cooling fluid shower nozzle 13 are fixed on the chuck of installing on the A axle output terminal 3.
Described chuck 3 is made up of the base of the carrier head, bakelite fixture block, metal fixture block and the fastening piece that are fixed on the defeated end of A axle servo control mechanism, and induction heater 12 and cooling fluid shower nozzle 13 are fastened on the base of the carrier head by bakelite fixture block, metal fixture block respectively and move with A axle servo control mechanism output terminal.
Described five servo-actuating devices, its principle of work is: when starting digital control system 4, digital control system is sent instruction to X, Y, Z, A, five servomotors of C respectively according to the program that presets, the driven by servomotor servo-actuator is done relative movement with different movement velocitys and timing node drive induction heater 12, cooling fluid shower nozzle 13 along the processed surface of part 2, and forms predetermined space geometry relation with the surface.Because X, Y, Z, A, five of C can realize interlock, so induction heater 12, cooling fluid shower nozzle 13 can be done the spatial complex motion with chuck 3.Part 2 is fixed on the worktable by the Y-axis driven by servomotor.
Described induction power supply 1 provides the induced current of 10-45KHz range of frequency, and its frequency size is carried out craft and preset and regulate according to material category and quenching hardness, the degree of depth requirement of processed part.The main-transformer of induction power supply 1 and secondary transformer be installed in the electrical power control cabinet respectively and induction heater 12 near.
Described heat-eliminating medium stores and feedway 7 provides the heat-eliminating medium that is suitable for the quenching strengthening process standard, and is subjected to digital control system 4 steering orders to realize switch motion.This device mainly is made up of the three-phase pump of power in 90W to 120W scope, fluid container and liquid delivery tube, the tube stub that stainless steel is made.Heat-eliminating medium stores and lag behind for some time than induction power supply 1 start time of feedway 7.
The present invention manually presets the power frequency parameter of induction power supply 1 according to treated material kind and quenching hardness, the degree of depth that will reach.Open induction heater 12 and heat-eliminating medium storage and feedway 7 by digital control system 4, simultaneously send instruction, realize that with suitable translational speed, mobile route and induction heater 12 and curve clearance parameter the continuous mobile quenching strengthening of piece surface is handled to servo-actuating device.
Above-mentioned complex space curved surface quenching device provided by the invention, its working process is: according to surface hardness, depth of hardening zone requirement and the material category of requirement parts processed, surface geometry characteristic parameter etc., preset induction power supply 1 frequency parameter, selected good cooling fluid kind earlier, five servo control mechanism kinematic parameters of input and instruction in digital control system 4.After starting this device, under digital control system 4 controls, order is carried out induction power supply 1 startup, each servomotor setting in motion, cooling fluid shower nozzle 13 feed flows, progressively finish heating, the process of cooling of surperficial each point, cover whole processed surface continuously until induction heater 12 and cooling fluid shower nozzle 13 paths.
The invention provides complex space curved surface point type and move the induction quenching method, this method is utilized complex space curved surface quenching device, description of materials and heat treatment performance according to processed part, to the desired depth of hardening zone of different parts, surface hardness, realize that with the continuous move mode of point type the quenching strengthening of piece surface is handled.
Complex space curved surface point type provided by the invention moves the induction quenching method, and referring to Fig. 1 and Fig. 2, its step comprises:
1. preparation work:
In the time need carrying out the hard surfacing intensive treatment to part 2 with spatial complex curved surface, preset the frequency parameter of induction power supply 1 according to depth of hardening zone, its frequency values can calculate according to following formula:
Wherein,
Be the depth of hardening zone of piece surface,
Be the induction power supply frequency.
Adjust the heat-eliminating medium kind in heat-eliminating medium storage and the feedway 7, general as No. 45 steel adopt the water-based quenchants.
According to part surface geometry parameter, material category and reinforcement requirement, carry out the heat-up time of induction heater 12 and the coupling of translational speed.Its matching formula is
, wherein:
Be heat-up time, unit is second, chooses according to inductive source power, selects little value when power is big, otherwise choosing is value greatly;
The length of side or diameter for induction heater 12 are generally 10-20mm, and part curvature is big, selects higher value, otherwise select smaller value;
Be the translational speed of induction heater 12 and cooling fluid shower nozzle 13, general 0.3-30mm/s needs the high material of quenching temperature to select little value, otherwise the big value of choosing.
According to
,
,
Value and part surface geometry shape and parameter are programmed to digital control system.Programmed method is looked the programming standard of the digital control system manufacturer of employing and is determined.The gap parameter of the mobile route of determining induction heater 12, cooling fluid shower nozzle 13 by programming, translational speed and induction heater 12 and processed curved surface.
2. to the quenching strengthening on part 2 surfaces:
Start complex space curved surface quenching device, digital control system 4 is sent instruction and is opened induction power supply 1, and induction power supply 1 gives induction heater 12 power supplies, and the induced current of induction heater 12 and part 2 surfaces produce poly-skin benefit, make part 2 surfaces be heated to certain temperature.At this moment, the time delay command built-in according to digital control system, electric pump is opened in heat-eliminating medium storage and the feedway 7, and heat-eliminating medium is sprayed to part 2 surfaces by cooling fluid shower nozzle 13, makes its quick cooling.
Simultaneously, digital control system 4 requires to send movement instruction to five servo-actuating devices according to built-in translational speed and path program, five of X, Y, Z, A, C are with different speed and timing node motion, form the complex space movement continuously of chuck 3 and fixed induction heater 12 thereof and cooling fluid shower nozzle 13 along processed part 2 surfaces, constantly finish part 2 surfaces and go up heating, process of cooling, the final quenching strengthening of realizing whole part 2 surfaces forms predetermined hardened structure.
Claims (10)
1. a complex space curved surface point type moves induction hardening equipment, it is characterized in that this device is main by being contained in the digital control system (4) on the frame, five servo control mechanisms, and the induction heater (12), cooling fluid shower nozzle (13) composition that driven by five servo control mechanisms, wherein: induction heater (12) and cooling fluid shower nozzle (13) are done three-dimensional continuous moving along the complex space curved surface of part (2); The induced current that provides by induction power supply (1) is provided in induction heater (12), after part (2) surface is heated to austenite transformation temperature, the ejection heat-eliminating medium cools off part (2) surface from cooling fluid shower nozzle (13), realizes that the quenching strengthening on part (2) surface is handled; Induction power supply (1) and heat-eliminating medium store and the switch of feedway (7) is subjected to digital control system (4) control.
2. complex space curved surface point type according to claim 1 moves induction hardening equipment, it is characterized in that described induction heater (12) is to form with copper tube weldering system, and single turn form, profile are circular or square, and hollow is led to water coolant.
3. complex space curved surface point type according to claim 2 moves induction hardening equipment, it is characterized in that adopting between described induction heater (12) and the induction power supply (1) concentric cable to be connected, induction power supply (1) provides the 10-40KHz induced current.
4. complex space curved surface point type according to claim 1 moves induction hardening equipment, it is characterized in that described cooling fluid shower nozzle (13) made by red copper pipe or stainless pipe, and hollow is led to fluid dielectric coolant; This cooling fluid shower nozzle and heat-eliminating medium store and feedway (7) between adopt hollow metal hose connection, when heat-eliminating medium stores and during the feedway unlatching, the cooling fluid shower nozzle is with spray coolant extremely on the heating surface of processed part.
5. complex space curved surface point type according to claim 1 moves induction hardening equipment, it is characterized in that described five servo-actuating devices, form by the servo control mechanism on X-axis, Y-axis, Z axle, A axle and C axle five positions respectively, wherein: X-axis, Y-axis, Z axle refer to the rack-mounted all around and the straight line shifting axle of three directions up and down respectively, and A axle and C axle are respectively the vertical surface of bracing frame (11) and two rotating shaftes on the horizontal plane.
6. complex space curved surface point type according to claim 5 moves induction hardening equipment, it is characterized in that described X-axis, Y-axis and Z axle servo control mechanism are respectively by X servomotor (6), Y-axis servomotor (8), Z axle servomotor (5) is formed, and the speed reduction unit by connecting with it respectively, ball-screw drives bracing frame (11) side-to-side movement, worktable (9) seesaws, and crossbeam (10) is made translational motion up and down, A axle and C axle are respectively by A axle servomotor (15), C axle servomotor (14) connects speed reduction unit and does turning motion, wherein C axle servo control mechanism is installed on the bracing frame (11), and A axle servo control mechanism is installed on the C axle servo control mechanism output terminal; The chuck (3) that is used for fixing induction heater (12) and cooling fluid shower nozzle (13) is housed on the A axle output terminal.
7. a complex space curved surface point type moves the induction quenching method, it is characterized in that description of materials and thermal treatment process performance thereof according to processed part, to the desired depth of hardening zone of different parts, surface hardness, make three-dimensional point type at piece surface and move continuously, realize the quenching strengthening processing of piece surface by piece surface heating and cooling; Whole quenching strengthening treating processes is to be finished by the described complex space curved surface of arbitrary claim quenching device in the claim 1 to 8.
8. method according to claim 7 is characterized in that may further comprise the steps:
A. preparation work:
In the time need carrying out the hard surfacing intensive treatment to part (2) with spatial complex curved surface, operator elder generation basis
Depth of hardening zone presets the frequency parameter of induction power supply (1) and the heat-eliminating medium kind in selected heat-eliminating medium storage and the feedway (7), then according to part surface geometry parameter, material category and reinforcement requirement, to the digital control system input program, carry out the coupling of translational speed, mobile route and the distance of Heating temperature and speed of cooling and induction heater (12), cooling fluid shower nozzle (13);
B. to the quenching strengthening of part (2):
Start complex space curved surface quenching device, digital control system (4) is sent instruction and is opened induction power supply (1), induction power supply (1) is given induction heater (12) power supply, the induced current of induction heater (12) and part (2) surface produce poly-skin effect, make part (2) surface be heated to certain temperature; At this moment, the time delay command built-in according to digital control system, heat-eliminating medium store and the middle electric pump of feedway (7) is opened, and heat-eliminating medium is sprayed to part (2) surface by cooling fluid shower nozzle (13), makes its quick cooling,
Simultaneously, digital control system (4) requires to send movement instruction to five servo-actuating devices according to built-in translational speed and path program, five of X, Y, Z, A, C are with different speed and timing node motion, form chuck (3) and fixed induction heater (12) thereof and cooling fluid shower nozzle (13) and do the movement continuously of complicated space along processed part (2) surface, constantly finish heating, process of cooling on part (2) surface, the final quenching strengthening of realizing whole part (2) surface forms predetermined hardened structure.
9. method according to claim 8 is characterized in that presetting the frequency parameter of induction power supply (1), and its frequency values calculates according to following formula:
In the formula:
Be the depth of hardening zone of piece surface,
Be the induction power supply frequency.
10. method according to claim 8 is characterized in that in the steps A, according to matching formula
, the heat-up time and the translational speed of induction heater (12) are mated, in the formula:
Be heat-up time, unit is second, chooses according to inductive source power, selects little value when power is big, otherwise choosing is value greatly;
Be the length of side or the diameter of induction heater (12), part curvature is big, selects higher value, otherwise selects smaller value;
Be the translational speed of induction heater (12) and cooling fluid shower nozzle (13), need the high material of quenching temperature to select little value, otherwise the big value of choosing.
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| CN104451096A (en) * | 2014-12-09 | 2015-03-25 | 唐山大隆机械制造有限责任公司 | Follow-up rotary type quenching inductor for quenching workpiece with continuous curved surface |
| CN106544669A (en) * | 2016-10-21 | 2017-03-29 | 武汉理工大学 | Three-dimensional point type continuous moving senses cladding method |
| CN108966388A (en) * | 2018-07-26 | 2018-12-07 | 燕山大学 | A kind of complex-curved adaptive scanning induction heating apparatus and method |
| CN115598174A (en) * | 2022-12-12 | 2023-01-13 | 常州京洋半导体材料科技有限公司（Cn） | Carbon fiber heat preservation felt check out test set |
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| CN101629234A (en) * | 2009-08-18 | 2010-01-20 | 湘电重型装备股份有限公司 | Intermediate-frequency induction quenching method and device of gear wheel hunting tooth |
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| CN106544669A (en) * | 2016-10-21 | 2017-03-29 | 武汉理工大学 | Three-dimensional point type continuous moving senses cladding method |
| CN108966388A (en) * | 2018-07-26 | 2018-12-07 | 燕山大学 | A kind of complex-curved adaptive scanning induction heating apparatus and method |
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