CN107186029A - A kind of heater, production line and method for producing subregion intensity heat-punch member - Google Patents
A kind of heater, production line and method for producing subregion intensity heat-punch member Download PDFInfo
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- CN107186029A CN107186029A CN201710478108.5A CN201710478108A CN107186029A CN 107186029 A CN107186029 A CN 107186029A CN 201710478108 A CN201710478108 A CN 201710478108A CN 107186029 A CN107186029 A CN 107186029A
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- Prior art keywords
- heater
- tablet
- insulated case
- heating
- cooler device
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
- B21D22/022—Stamping using rigid devices or tools by heating the blank or stamping associated with heat treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/16—Heating or cooling
-
- 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
-
- 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
- C21D1/62—Quenching devices
- C21D1/673—Quenching devices for die quenching
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Press Drives And Press Lines (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
A kind of heater for producing subregion intensity heat-punch member, production line and hot press-formed method with the heater.The heater includes：The heater and cooler device of separation includes with whole heater, the heater and cooler device：Upper insulated case and lower insulated case positioned opposite；With one or two pressue devices being connected in the upper insulated case and lower insulated case；There is profiling heat transfer plate and cooling block at least one surface in the surface positioned opposite of the upper insulated case and lower insulated case, the profiling heat transfer plate and cooling block are adjacently positioned, set at the profiling heat transfer plate in having heaters, the cooling block and be provided with cooling water channel.Tablet in the present invention is static in heater and cooler device, and the varying strength region of product can be optional position, curve and direction, and soft or hard transition region can be very narrow.
Description
Technical field
The present invention relates to technical field of hot stamping and forming, especially a kind of suitable drop stamping zero of the production with subregion intensity
The heater of part, production line and hot press-formed method with the heater.
Background technology
In current drop stamping product, it is desirable to which the product of varying strength subregion is more and more.And will on a product
Ask diverse location occur soft zone requirement it is also more and more.For example, automobile B-pillar reinforcement plate, except requiring under vehicle body position
Portion has outside the relatively low soft zone of intensity, also requires to set soft zone in the welding position of two sides of B posts, this welds soft zone and hard
The transition region in area requires very narrow.This gives brings unprecedented challenge by prior art manufacture soft zone, and prior art can not be fine
Ground meets this requirement.
Soft zone is manufactured on hot pressing product mainly two kinds of thinkings：One is to reduce the heating-up temperature at soft zone position.Hot pressing
The usual intensity requirement of part is tensile strength 1500MPa.This is needed the i.e. complete austenite of the Ac3 temperature of blank heating to sheet material
More than phase transition temperature, i.e., more than 860 DEG C, then quick cooling implements mould cold with the average cooling rate more than 27 DEG C/s
But.Superhigh intensity quenching structure of the tensile strength based on martensite for 1500MPa, i.e. hard area could be obtained.If plate
Some region heating-up temperature is below austenite phase transformation initial temperature i.e. 700 DEG C less than Ac1 temperature on material, the region of this in sheet material
Basic stitch ferrite/pearlite is not changed into austenite, and it will be base that die forming and pressurize quenching, which cool down later tissue,
The relatively low ferrite of the original intensity of material or pearlitic structrure.So it is achieved that the soft zone of the regional area on hot-pressed parts i.e.
Hypo-intense region.
In the prior art, using point different heating-up temperature region in roller hearth type heating furnace：Referring to Fig. 2, tablet is in roller
Being done in the stove of bottom in crossfeed, stove sets baffle plate that stove cross-sectional width direction is divided into two or several heating and cooling area
Domain:High-temperature region and low-temperature space.Tablet will be heated to form two or several differences in crossfeed along the length direction of tablet
Temperature.Low intensity on tablet after the low region pressurize quenching of temperature, to realize above-mentioned soft zone.For example, Publication No.
CN103028645, the patent application of entitled " a kind of intensity adjustable is distributed the hot press-formed method of high-strength steel plate material parts " is
Disclose this technology.
However, this technology has following deficiency：
1) it is highly unstable when tablet makees crossfeed in the stove of roller bottom, it is nothing like longitudinal feed stable.Tablet is come out of the stove
When position it is very unstable, cause scrappage high.
2) due in stove height warm area can not completely separate, sideslip of the tablet in feeding, causes strong on tablet in addition
The position for the transitional region spent between subregion and width control system are inaccurate.
3) due in stove height warm area be that, by barrier partitions, and tablet needs to make feed motion always, this is allowed for
Different heating area is set to be very inconvenient, the line of demarcation not malleable, and varying strength of different temperatures heating zone in stove
Zone boundary must be parallel with stove Internal baffle.This requires that the line of demarcation in the varying strength area on tablet will be with tablet in roller bottom stove
In feeding direction it is parallel.If the line of demarcation of the varying strength subregion on product product is any direction, it can not just realize
The soft zone so required.When the low-intensity area on tablet is in Arbitrary distribution on tablet, no matter allow tablet which does in stove
The feeding in direction, varying strength area can not be all met simultaneously and is separated into different temperatures area by stove Internal baffle.As shown in Fig. 2 existing
Roller bottom stove in although high-temperature region (501) and low-temperature space (502) can be set to realize the hard area to automobile B-pillar reinforcement plate respectively
(1) and bottom soft zone (3) differentiation heating, but can not but complete the low-temperature heat to both sides soft zone (2).
Another thinking of manufacture soft zone is on hot pressing product：Even if sheet material Zone Full has been heated to complete Ovshinsky
More than body temperature, by delaying cooling velocity in regional area, it is not martensitic structure to make the region room temperature texture, but iron
Ferritic/pearlite/bainite structure, reaching reduces the purpose of the field strength.
Above-mentioned thinking is achieved in that：Subregion is not heated and cooled down in heating furnace, but is passed through in hot-forming die
Insert is implemented to heat to being embedded to heating tube in local insert, or without cooling duct, mould other parts have in insert
Cooling duct.When plate is formed in a mold and pressurize is quenched, the rate of temperature fall when insert high with temperature is contacted is slow,
So as to the low intensity in the product region.For example, Publication No. CN104889218, entitled " one kind obtains intensity adjustable drop stamping zero
The patent of the method and mould of part " is to disclose this technology.
But because insert has three dimensional type face, to be embedded to enough heating tubes makes the surface temperature of die insert uniformly reach
500-600 DEG C is very very difficult.And the gap of cold and hot insert will reduce as far as possible, to avoid the type face after suppressing product from causing
Defect.But the contact of cold and hot insert can cause adjacent area temperature uncontrolled, so that the mistake that product has a common boundary in soft or hard region
The position and width for crossing area do not meet product requirement.Therefore, the technique can not meet current B posts both sides very narrow transition region will
Ask.
Also there are some other drop stamping techniques in the prior art, it respectively there are advantage and disadvantage.For example, not heated in heating furnace
Subregion, is not also heated in hot-forming die to die insert, but is implemented offline part to the product after drop stamping and moved back
Fire, the field strength of annealing is low.Such as Publication No. CN103339268, the entitled " customization provided by rear thermoforming process
The patent of performance " discloses the technology.This is the means done something against one's will really.Cast aside cost Gao Buti, heat treatment deformation
Problem is always that thin stamping parts does the problem of heat treatment is difficult to overcome.Because drop stamping product is typically all that thickness is no more than 3mm
Thin-walled 3 d part.Such stamping parts is once heat-treated in unconfined heating environment, necessarily causes gross distortion.
Temperature is higher, deforms more serious.The local intensity of product is reduced using the annealing heat-treats after punching press, the size of product can be made
Control is extremely difficult.
And for example, Publication No. CN103878237, entitled " a kind of method of the hot press-formed part processing of high-strength steel "
Patent discloses a kind of using high-frequency induction heating method, passes through the reasonable Arrangement of coil, controls the different heating of different zones
Temperature.This utilization induction coil directly can make the temperature on tablet very uneven the mode that tablet is heated.Particularly work as profit
It is uneven due to heating when controlling the different temperatures of heating region to realize height warm area with the different heating parameters of induction coil
The exact boundary line and narrow transitional region between height warm area can not be generated, thus causes the border of the soft or hard subregion of product not
Accurate and wide soft or hard transition region.
The content of the invention
The technical problems to be solved by the invention are：The technique of various manufacture soft zones of the prior art is undesirable, when
The line of demarcation that soft zone and hard area are required in hot pressing product is arbitrary curve and any direction, and the transition region in soft or hard area is very narrow
When, prior art can not be realized.It is, therefore, desirable to provide a kind of hot press-formed technique more optimized.
In order to solve the above-mentioned technical problem, the technical scheme is that：A kind of suitable production has the zero of subregion intensity
The heater of part, including：The heater and cooler device of separation and whole heater, wherein, the heater and cooler device bag
Include：
Upper insulated case and lower insulated case positioned opposite；
With one or two pressue devices being connected in the upper insulated case and lower insulated case, the pressurization dress
Put the control upper insulated case and the relative movement of lower insulated case；
There is profiling at least one surface in the surface positioned opposite of the upper insulated case and lower insulated case
Heat transfer plate and cooling block, the profiling heat transfer plate and cooling block are adjacently positioned, and having heaters, institute are set at the profiling heat transfer plate
State and cooling water channel is provided with cooling block.
It is preferred that, set respectively on the upper insulated case and lower insulated case upper heater, upper profiling heat transfer plate, on
Cooling block and lower heater, lower profiling heat transfer plate, lower cooling block, the upper cooling block are adjacently positioned with upper profiling heat transfer plate,
The lower cooling block is adjacently positioned with lower profiling heat transfer plate, and cooling water is set respectively in the upper cooling block and lower cooling block
Road.
It is preferred that, with gap between the profiling heat transfer plate and cooling block, it is provided with and is fixed to absolutely in the gap
The insulating barrier of hot housing or lower insulated case.
It is preferred that, the heater and cooler device is arranged on lifting platform, and the lifting platform includes transfer roller, described lower exhausted
Hot housing includes being arranged in the retainer plate on the transfer roller and the lower thermal insulating layer at the top of retainer plate.
A kind of production line of the heater for the part that there is suitable production as described above to have subregion intensity, including according to
Secondary arrangement：De-stacking dolly, preheating apparatus feeding robot, preheating apparatus, heater and cooler device feeding robot, plus
Hot and cold but device, whole heater feeding robot, whole heater, pressuring machine feeding robot, pressuring machine, blanking machine
People and blanking conveyer belt.
A kind of production line of the heater for the part that there is suitable production as described above to have subregion intensity, including according to
Secondary arrangement：De-stacking dolly, heater and cooler device feeding robot, heater and cooler device, whole heater feeding machine
People, whole heater, pressuring machine feeding robot, pressuring machine, blanking robot and blanking conveyer belt.
A kind of hot press-formed method of production line as described above, it is characterised in that comprise the following steps：
The first step, preheating：Tablet sends into preheating apparatus by preheating apparatus feeding robot；
Second step, local heating and Local cooling：After tablet is heated through preheating apparatus, by heater and cooler device feeding
Robot sends into heater and cooler device, the accurate location being placed at the top of lower insulated case；Pressue device will be heated and cooling dress
The upper and lower insulated case put is pressed with tablet, and the cooling block in heater and cooler device is implemented to cool down to tablet part, together
When heater and cooler device in heater to other positions of tablet implement heat；
3rd step, eventually heating：Tablet is sent into whole heater and further heated by whole heater feeding robot
And insulation；
4th step, pressurize quenching：Tablet after heating is sent into pressuring machine by pressuring machine feeding robot, is carried out pressurize and is quenched
Fire, and product is placed in blanking conveyer belt by blanking robot.
Also or, in local heating and local cooling step, do not possess the heat block in heater and cooler device to tablet
Implement heating in other positions.
Also or, preheating steps can be omitted.
Tablet in the present invention is static in heater and cooler device, profiling heat transfer plate in heater and cooler device and cold
But the profile of block is corresponding with the profile in product varying strength region arranges.Therefore, it can to meet varying strength region position,
The production for the hot pressing product that curve and direction are arbitrarily arranged.Heating and cooled region strictly can be controlled accurately, heating-up temperature
It strictly can accurately control, the production of the very narrow product of soft or hard transition region can be met.
The more architectural features and advantage of the present invention will be further illustrated in a specific embodiment.
Brief description of the drawings
Fig. 1 is that tablet is normally sent into schematic diagram in the stove stove of prior art central roll bottom；
Fig. 2 is tablet partition heating schematic diagram in the stove stove of prior art central roll bottom；
Fig. 3 is the first heater and cooler device schematic diagram proposed by the present invention；
Fig. 4 is the sectional view in A-A directions in Fig. 3；
Fig. 5 is Fig. 3 partial enlarged drawing；
Fig. 6 is the preheating schematic diagram that tablet has any soft zone；
Fig. 7 is the first hot forming production line schematic diagram；
Fig. 8 is second of hot forming production line schematic diagram；
Fig. 9 is second of heater and cooler device schematic diagram；
Figure 10 is the third hot forming production line schematic diagram；
Figure 11 is the enlarged drawing of the lifting platform with cooling and heating device in Figure 10.
Shown in figure：1st, hard area；2nd, both sides soft zone；3rd, bottom soft zone；1a, hard area；1b, soft zone；1c, transition region；
10th, de-stacking dolly；20th, preheating apparatus；30th, heater and cooler device；50th, whole heater；51st, charging lifting
Or fixed station；52nd, discharging lifting or fixed station；70th, pressuring machine；90th, blanking conveyer belt；
21st, preheating apparatus feeding robot；22nd, heater and cooler device feeding robot；23rd, whole heater feeding
Robot；24th, pressuring machine feeding robot；25th, blanking robot；
500th, transfer roller；501st, high-temperature region；502nd, low-temperature space；
300, insulating barrier；301st, upper insulated case；302nd, lower insulated case；303rd, upper profiling heat transfer plate；304th, it is lower imitative
Shape heat transfer plate；305th, upper heater；305a, upper load coil；306th, lower heater；306a, lower load coil；
307th, upper cooling block；308th, lower cooling block；309th, cooling water channel；
40th, the lifting platform with cooling and heating device；401st, lifting platform body；402nd, transfer roller；403rd, retainer plate；404th, lower thermal insulation
Layer；405th, upper insulated case；406th, load coil；407th, profiling heat transfer plate；408th, cooling block；409th, cooling water channel.
Embodiment
For the ease of understanding the above objects, features and advantages of the present invention, it is illustrated with reference to embodiment.Ying Li
Solution, these embodiments are only illustrative of the invention and is not intended to limit the scope of the invention.A variety of for these embodiments repair
Change and will be apparent to those skilled in the art, generic principles defined herein can not take off
In the case of from the spirit or scope of the present invention, it is achieved in other embodiments.
The present invention main feature be exactly:Tablet is being sent into final heating devices heat to before being more than 900 DEG C, it is first right
Tablet implements preheating and Local cooling.Heating to tablet is divided into three parts of separation:The first step is preheated, second step office
Portion is heated and Local cooling, and the 3rd step is heated eventually；Installed and each varying strength region of product in heater and cooler device
Corresponding profiling heat transfer plate and cooling block.It is exactly to allow Al-Si coatings in heating and base to implement the pre-warmed purpose of the first step
Fe in material mutually diffuses to form the higher Fe-Al-Si three-phase contextures of fusing point, but temperature control is in austenite phase transformation start temperature
Below such as less than 690 degree.The purpose for implementing second step local heating and Local cooling is exactly to be easier to adopt outside heating furnace
Caused in advance than the larger temperature difference on blank sheet with the heating and cooling technology of cold-hot plate.The temperature difference on tablet is sent in tablet
Enter subsequent heat stove and proceed integration to be heated to still there will be during predetermined temperature, using the temperature difference on this tablet,
After follow-up pressurize quenching, the intensity of product will be different.When tablet is not coated piece of bare board, then or pre-add is not needed
Thermal, high-temperature region is directly heated to 700 degree or so by tablet by heater and cooler device from room temperature (can exceed austenite phase
Become start temperature) and low-temperature space keeps room temperature by cooling block；Or tablet can be integrally heated to (Ovshinsky by preheating apparatus
Below body starting temperature of transformation) less than 690 degree, heater and cooler device is only equipped with cooling block without heating plate.By cold
But tablet soft zone position is cooled to room temperature by block.When preheating apparatus is heated to below 690 degree, tablet does not enter into austenite
Phase change zone.
【Embodiment one】
Referring to a kind of heater and cooler device 30 shown in Fig. 3~5, as a whole, the heater and cooler device 30 is wrapped
Profiling heater and pressue device are included, the pressue device pressurizes to profiling heater.The pressue device is preferably used
Hydraulic cylinder, is prior art, and non-invention emphasis, is not shown in figure.
The heater and cooler device 30 includes：Upper insulated case 301 and lower insulated case 302 positioned opposite, it is described
One or two in upper insulated case 301 and lower insulated case 302 are connected to the pressue device, and are pushed away by pressue device
It is dynamic.It is separately positioned on the upper profiling heat transfer plate on the surface positioned opposite of the upper insulated case 301 and lower insulated case 302
303 and lower profiling heat transfer plate 304, it is separately positioned on the described positioned opposite of the upper insulated case 301 and lower insulated case 302
Surface on upper cooling block 307 and lower cooling block 308.Upper cooling block 307 is adjacently positioned with upper profiling heat transfer plate 303, under it is cold
But block 308 is adjacently positioned with the lower profiling heat transfer plate 304.Pacify respectively on the upper insulated case 301 and lower insulated case 302
Equipped with upper heater 305 and lower heater 306, the electric heating tube for example, in insulated case, for profiling heat transfer plate
Thermal source is provided.Cooling water channel 309 is preferably provided with the upper cooling block 307 and lower cooling block 308, to accelerate cooling procedure.Ginseng
See Fig. 5, with gap between upper the profiling heat transfer plate 303 and upper cooling block 307, be provided with and be fixed to absolutely in the gap
The insulating barrier 300 of hot housing 301；There is gap, the gap between the lower profiling heat transfer plate 304 and lower cooling block 308
Inside it is provided with the insulating barrier 300 for being fixed to lower insulated case 302.
The upper profiling heat transfer plate 303 and lower profiling heat transfer plate 304 are flat heaters, and heating region is with being heated material
The region of heating is needed on piece, i.e. the profile in hard area 1 is corresponding, and pressue device make it that profiling heat transfer plate and heated tablet are close
Contact, so as to realize the conduction heating to tablet.On described upper cooling block 307 and lower cooling block 308 and heated tablet not
Need the region of heating, i.e. both sides soft zone 2 is corresponding with the profile of bottom soft zone 3, pressue device cause cooling block equally with quilt
Heat tablet to be in close contact, so as to implement to cool down to the region.
The upper cooling block 307 and lower cooling block 308 are relatively solid with upper insulated case 301 and lower insulated case 302 respectively
It is fixed, and the upper profiling heat transfer plate 303 can be moved relative to upper insulated case 301, the lower profiling heat transfer plate 304 can be relative
Lower insulated case 302 is moved, and moving direction is the relative movement direction parallel to upper insulated case 301 and lower insulated case 302.
In preheating process, when needing reduction tablet heating rate, cooling block pairing all the time is kept, tablet is pushed down, and upper profiling
Heat transfer plate 303, lower profiling heat transfer plate 304 are raised, reduced respectively, produce a little distance with tablet, then two profiling heat transfer plates
Pairing does certain frequency reciprocating motion again, heat transfer is reduced by reducing the time of contact with tablet, so as to reduce tablet liter
Warm speed.
Hot forming production line schematic diagram with heater and cooler device 30 shown in Fig. 3~5 shown in Figure 7.The heat
Fabrication line includes what is be sequentially arranged：De-stacking dolly 10, preheating apparatus feeding robot 21, preheating apparatus 20, heating
With cooling device feeding robot 22, the heater and cooler device 30, whole heater feeding robot 23, the heating eventually
Device 50, pressuring machine feeding robot 24, pressuring machine 70, blanking robot 25 and blanking conveyer belt 90.Described plus hot and cold
But device 30 is the heater and cooler device shown in Fig. 3~5.The preheating apparatus 20 and whole heater 50 are common
Multilayer or individual layer roller hearth type heating furnace, one of multilayer or individual layer box type heater, its both sides have charging lifting or solid respectively
Determine platform 51 and discharging lifting or fixed station 52.
In a specific embodiment, above-mentioned heater and cooler device 30 can be one, or many.
By taking the ultrahigh strength steel part with soft or hard subregion as an example, its hot press-formed technical process is：
The first step, preheating：Blank sheet is sent into preheating apparatus 20 by preheating apparatus feeding robot 21 and heated,
Tablet is heated to not more than 700 degree of temperature.
Second step, local heating and Local cooling：Tablet is sent into plus hot and cold by heating and device for cooling feeding robot 22
But device 30, are placed in the accurate location at the lower top of insulated case 302.The accurate location of tablet can pass through the positioning hole on tablet
Determined with the floating positioning pin of lower profiling heat transfer plate.
Pressue device presses the upper and lower insulated case 301,302 of heater and cooler device 30 and tablet, heating and cooling
Device 30 implements local heating and Local cooling to tablet.Now, all included on upper insulated case 301 and lower insulated case 302
The heating zone and cooling zone of corresponding different heating temperature up and down.The heating zone of variant temperature and the line of demarcation of cooling zone with
The line of demarcation in varying strength region is corresponding on product.Cooled/heating tablet is by conduction cooling and heats, in different zones
Rapidly it is heated to different temperature.
The tablet region of cooling is needed by the cooling block 307,308 containing cooling water channel 309 while cooling down at keeping temperature
In near room temperature.
When needing reduction tablet heating rate, profiling heat transfer plate 303,304 is lifted away from, drop with a distance from a little from tablet pairing again
Certain frequency reciprocating motion is done, pairing pushes down tablet all the time while keeping cooling block 307,308.
Blank sheet is heated to after predetermined temperature, for example, when high temperature position reaches 600 DEG C~700 DEG C, low temperature position is room
Temperature, more than 600 DEG C of the two temperature difference.Pressue device lifts upper insulated case 301, and tablet is lifted off lower insulated case by lifting body
302。
It should be noted that the second step heating and cooling of the present invention are carried out in profiling heat transfer plate pressurization closure up and down
, and conduction-type firing rate is quickly, will not produce any oxide skin.
3rd step, eventually heating：Tablet is sent into whole heater 50 and carried out further by whole heater feeding robot 23
Heating and insulation.Add in the whole heater 50, such as multilayer roller hearth type heating furnace/roller hearth type heating furnace/box type heater
After heat insulation, tablet is rolled out automatically from discharging lifting platform 52.Heated by the 3rd step, the temperature difference between cold and hot region is by 600 DEG C
It is gradually reduced above, but still disclosure satisfy that the requirement in production intensity.For example, when high temperature position reaches that more than 880 DEG C are come out of the stove
When, the temperature of former cooled region has only been raised to 600 DEG C or so, and austenite phase transformation initial temperature is 700 DEG C, and 600 DEG C are not enough to
Cause phase transformation, this subregion becomes soft zone.
4th step, pressurize quenching：Tablet after heating is sent into pressuring machine 70 by pressuring machine feeding robot 24, carries out pressurize
Quenching, product is placed in blanking conveyer belt 90 by blanking robot 25.So far, heat pressing process is completed, due to using pressurize quenching, system
The dimensional accuracy of part is easily controlled.
【Embodiment two】
The present embodiment and embodiment one are essentially identical, and the main distinction is the structure of heater and cooler device 30.
In above-described embodiment one, the soft zone 2,3 of tablet is located at periphery, and in the present embodiment, the soft zone 1b of tablet is positioned at interior
Portion, referring to Fig. 6.It is the transition region 1c for limiting size between the soft zone 1b and hard area 1a of the tablet.
Heater and cooler device 30 proposed by the present invention can equally be well adapted for the hot forming work of the tablet shown in Fig. 6
Skill.Specific settling mode is also similar with embodiment one, i.e.,：The profiling heat transfer plate that is adjacently positioned is set on insulated case and cold
But block, the profiling heat transfer plate corresponds to hard area 1a profile, and the cooling block corresponds to soft zone 1b profile, the cooling block
Surrounded by profiling heat transfer plate.Have to set in gap, the gap between the profiling heat transfer plate and cooling block and be fixed to thermal insulation
The insulating barrier 300 of housing, the insulating barrier 300 corresponds to the profile of the transition region 1c.The insulating barrier 300 is fixed and set
Put on the insulated case, or be integrally formed with the insulated case.Because heating region strictly can be controlled accurately, plus
Hot temperature strictly can also be controlled accurately, and the position of the transition region 1c and width can be controlled accurately, profiling heat transfer plate and cold
But the gap between block is set is advisable with producing indenture not on tablet.
【Embodiment three】
Further, if arranging that thinking of the invention is equally applicable for the increasingly complex soft or hard region of tablet.Example
Such as, some tablet has hard area, secondary hard area and soft zone, and wherein hard area needs to realize complete austenite phase transformation, therefore heating eventually
Temperature afterwards is more than 860 DEG C, preferably more than 900 DEG C；Secondary hard area needs to realize part austenite phase transformation, therefore heating eventually
Temperature afterwards is between 700 DEG C~860 DEG C, preferably between 750 DEG C~820 DEG C；Soft zone need not realize austenite phase transformation,
Therefore the temperature eventually after heating is less than 700 DEG C, preferably only at 600 DEG C or so.
Accordingly, the structure of the heater and cooler device 30 is arranged as：On the insulated case correspond to the hard area,
Secondary hard area and soft zone are set respectively：First profiling heat transfer plate, the second profiling heat transfer plate and cooling block.Each profiling heat transfer plate
The profile in the region with needing heating on heated tablet is corresponding respectively.At least described second profiling heat transfer plate can be relatively exhausted
Hot housing movement, to reduce the time of contact with tablet by the reciprocating motion of the second profiling heat transfer plate, so as to reduce heat
Conduction, reduces tablet heating rate, meets the heating-up temperature in this hard area.
By adjusting the temperature of heater and the time of contact of the second profiling heat transfer plate and tablet, preheating is completed
Afterwards, the hard area of tablet reaches 600 DEG C~700 DEG C；Secondary hard area reaches 500 DEG C~600 DEG C, preferably at 400 DEG C~500 DEG C；And it is soft
Area keeps room temperature.Afterwards, tablet delivers to whole heater and carries out following process.
【Example IV】
Such as embodiment one is introduced, and the hot forming production line disclosed in Fig. 7 is a full set of complete production line.When tablet be without
During the bare board of coating, then or preheating apparatus is not needed, the production line can be simplified.
For example, the heater and cooler device 30 in Fig. 7 only installs cooling block, without installing profiling heat transfer plate.Pre-add hot charging
Put 20 and tablet is heated to less than 690 degree, tablet soft zone position is cooled to room temperature by heater and cooler device 30 by cooling block.
Also or, referring to Fig. 8, the production line do not use Fig. 7 in preheating apparatus 20 and preheating apparatus feeder
Device people 21, thus tablet directly by heater and cooler device 30 by high-temperature region from room temperature be heated to 700 degree or so and low-temperature space by
Cooling block keeps room temperature.
【Embodiment five】
Second of heater and cooler device shown in Figure 9, compared to the first heater and cooler device shown in Fig. 3,
Upper heater 305 is substituted using upper load coil 305a, substitute lower heater using lower load coil 306a in Fig. 9
306.The present embodiment carries out sensing heating using magnetic flux, has the advantages that accurate temperature controlling compared to traditional electrical heating, saves the energy,
And heat is that conduction, to tablet, can avoid directly using magnetic flux in the prior art indirectly by profiling heat transfer plate 303,304
The defect heated to tablet.The heater of remaining type can also be used in other embodiments, and this patent is to heating
The structure of device is not limited.
【Embodiment six】
The third hot forming production line shown in Figure 10, compared to the production line shown in Fig. 7, Figure 10 production line does not have
Standby independent heater and cooler device 30, but heating and refrigerating function are incorporated on lifting platform, formed with cooling and heating device
Lifting platform 40, the lifting platform 40 with cooling and heating device is located between the preheating apparatus 20 and whole heater 50..Work as lifting
When the preheating apparatus 20 of the both sides of platform 40 and whole heater 50 is individual layer roller hearth type heating furnaces, lifting platform 40 can be fixed
, do not lift.Tablet can directly roll into lifting platform 40 and be heated and cooled down, so after the heating of preheating apparatus 20
Directly roll into whole heater 50 again afterwards.When product does not need soft zone, tablet can run through the liter for not filling cooling and heating device
Drop platform 40 rolls into whole heater 50 by preheating apparatus 20.
The concrete structure of the lifting platform 40 with cooling and heating device is referring to Figure 11, including lifting platform body 401, positioned at lifting
Transfer roller 402 in playscript with stage directions body 401, is arranged in the retainer plate 403 on the transfer roller 402, under the top of retainer plate 403
Heat insulation layer 404, the retainer plate 403 constitutes the lower insulated case in embodiment one with lower thermal insulating layer 404；And positioned at lifting platform
Upper insulated case 405 in body 401, it is imitative on the one side of the direction lower thermal insulating layer 404 of upper insulated case 405
Shape heat transfer plate 407 and cooling block 408, the profiling heat transfer plate 407 and cooling block 408 are adjacently positioned, positioned at upper insulated shell
Load coil 406 in body 405, the cooling water channel 409 in cooling block 408, and the retainer plate 403 with it is described on
Insulated case 405 is connected to pressue device, and is promoted by pressue device, to realize that picking and placeing for tablet is heated with compressing.
The core concept of the present invention is described in detail above by embodiment.Those skilled in the art exist
In the case of without departing from spirit of the invention, it is easy to obtain other various forms or details by them.Accordingly, it is to be understood that
It is that protection scope of the present invention is not limited merely to above embodiment.
Claims (10)
1. a kind of heater for producing subregion intensity heat-punch member, it is characterised in that including：The heating of separation and cooling dress
(30) and whole heater (50) are put, wherein, the heater and cooler device includes：
Upper insulated case (301) and lower insulated case (302) positioned opposite；
With one or two pressue devices being connected in the upper insulated case and lower insulated case, the pressue device control
Make the upper insulated case and the relative movement of lower insulated case；
On at least one surface in the surface positioned opposite of the upper insulated case and lower insulated case there is profiling to conduct heat
Plate (303) and cooling block (307), the profiling heat transfer plate and cooling block are adjacently positioned, and are provided with and are added at the profiling heat transfer plate
Cooling water channel (309) is provided with hot device (305), the cooling block.
2. heater as claimed in claim 1, it is characterised in that：On the upper insulated case and lower insulated case respectively
Upper heater (305), upper profiling heat transfer plate (303), upper cooling block (307) and lower heater (305), lower profiling heat transfer are set
Plate (304), lower cooling block (308), the upper cooling block are adjacently positioned with upper profiling heat transfer plate, the lower cooling block and lower profiling
Heat transfer plate is adjacently positioned, and cooling water channel is set respectively in the upper cooling block and lower cooling block.
3. heater as claimed in claim 1, it is characterised in that：Between having between the profiling heat transfer plate and cooling block
The insulating barrier for being fixed to insulated case or lower insulated case is provided with gap, the gap.
4. heater as claimed in claim 1, it is characterised in that：The heater and cooler device is arranged on lifting platform,
The lifting platform include transfer roller (402), the lower insulated case include be arranged in the retainer plate (403) on the transfer roller with
And the lower thermal insulating layer (404) at the top of retainer plate.
5. heater as claimed in claim 1, it is characterised in that：Profiling heat transfer plate being capable of relatively upper insulated case or lower exhausted
Hot housing movement.
6. a kind of have the production line as claimed in claim 1 for being adapted to produce the heater of the part with subregion intensity,
It is characterized in that including being sequentially arranged：De-stacking dolly (10), preheating apparatus feeding robot (21), preheating apparatus
(20), heater and cooler device feeding robot (22), the heater and cooler device (30), whole heater feeding robot
(23), the whole heater (50), pressuring machine feeding robot (24), pressuring machine (70), blanking robot (25) and under
Expect conveyer belt (90).
7. a kind of hot press-formed method of production line as claimed in claim 6, it is characterised in that comprise the following steps：
The first step, preheating：Tablet sends into preheating apparatus by preheating apparatus feeding robot；
Second step, local heating and Local cooling：After tablet is heated through preheating apparatus, by heater and cooler device feeding machine
People sends into heater and cooler device, the accurate location being placed at the top of lower insulated case；Pressue device is by heater and cooler device
Upper and lower insulated case is pressed with tablet, and the cooling block in heater and cooler device is implemented to cool down to tablet part, while plus
The heater of hot and cold but in device is implemented to heat to other positions of tablet；
3rd step, eventually heating：Tablet is sent into whole heater and further heat and protect by whole heater feeding robot
Temperature；
4th step, pressurize quenching：Tablet after heating is sent into pressuring machine by pressuring machine feeding robot, carries out pressurize quenching, and
Product is placed in blanking conveyer belt by blanking robot.
8. a kind of hot press-formed method of production line as claimed in claim 6, it is characterised in that comprise the following steps：
The first step, preheating：Tablet sends into preheating apparatus by preheating apparatus feeding robot；
Second step, local heating and Local cooling：After tablet is heated through preheating apparatus, by heater and cooler device feeding machine
People sends into heater and cooler device, the accurate location being placed at the top of lower insulated case；Pressue device is by heater and cooler device
Upper and lower insulated case is pressed with tablet, and the cooling block in heater and cooler device is implemented to cool down to tablet part；
3rd step, eventually heating：Tablet is sent into whole heater and further heat and protect by whole heater feeding robot
Temperature；
4th step, pressurize quenching：Tablet after heating is sent into pressuring machine by pressuring machine feeding robot, carries out pressurize quenching, and
Product is placed in blanking conveyer belt by blanking robot.
9. a kind of have the production line as claimed in claim 1 for being adapted to produce the heater of the part with subregion intensity,
It is characterized in that including being sequentially arranged：De-stacking dolly (10), heater and cooler device feeding robot (22), it is described heating and
Cooling device (30), whole heater feeding robot (23), the whole heater (50), pressuring machine feeding robot
(24), pressuring machine (70), blanking robot (25) and blanking conveyer belt (90).
10. a kind of hot press-formed method of production line as claimed in claim 9, it is characterised in that comprise the following steps：
The first step, local heating and Local cooling：Tablet is sent into by heater and cooler device feeding robot to be heated and cooling dress
Put, the accurate location being placed at the top of lower insulated case；Pressue device is by the upper and lower insulated case and tablet of heater and cooler device
Cooling block in pressing, heater and cooler device is implemented to cool down to tablet part, while adding in heater and cooler device
Hot device is implemented to heat to other positions of tablet；
Second step, eventually heating：Tablet is sent into whole heater and further heat and protect by whole heater feeding robot
Temperature；
3rd step, pressurize quenching：Tablet after heating is sent into pressuring machine by pressuring machine feeding robot, carries out pressurize quenching, and
Product is placed in blanking conveyer belt by blanking robot.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710478108.5A CN107186029A (en) | 2017-06-22 | 2017-06-22 | A kind of heater, production line and method for producing subregion intensity heat-punch member |
| CN201710799611.0A CN107552625B (en) | 2017-06-22 | 2017-09-07 | The heating device, production line and method of subregion intensity heat-punch member can be produced |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710478108.5A CN107186029A (en) | 2017-06-22 | 2017-06-22 | A kind of heater, production line and method for producing subregion intensity heat-punch member |
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| CN107186029A true CN107186029A (en) | 2017-09-22 |
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| CN201710478108.5A Pending CN107186029A (en) | 2017-06-22 | 2017-06-22 | A kind of heater, production line and method for producing subregion intensity heat-punch member |
| CN201710799611.0A Active CN107552625B (en) | 2017-06-22 | 2017-09-07 | The heating device, production line and method of subregion intensity heat-punch member can be produced |
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| CN201710799611.0A Active CN107552625B (en) | 2017-06-22 | 2017-09-07 | The heating device, production line and method of subregion intensity heat-punch member can be produced |
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| CN106738530A (en) * | 2016-12-14 | 2017-05-31 | 安徽德耐孚汽车减震科技技术有限公司 | A kind of cooling device of vehicle rubber product production |
| CN109870026A (en) * | 2019-03-13 | 2019-06-11 | 一汽-大众汽车有限公司 | A kind of heating system and the method for preparing partition heating high strength steel plate |
| US20210237138A1 (en) * | 2018-05-11 | 2021-08-05 | Magna International Inc. | Conduction pre-heating of sheet for hot forming |
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Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2650369B2 (en) * | 1988-11-24 | 1997-09-03 | 松下電器産業株式会社 | Mold equipment |
| DE102005032113B3 (en) * | 2005-07-07 | 2007-02-08 | Schwartz, Eva | Thermal deformation and partial hardening apparatus, e.g. for automobile components, comprises mold of at least two parts, each formed from segments adjustable to different temperatures |
| US8381562B2 (en) * | 2007-02-06 | 2013-02-26 | GM Global Technology Operations LLC | Metal forming apparatus characterized by rapid cooling and method of use thereof |
| CN102756251B (en) * | 2012-05-18 | 2014-05-21 | 山东大王金泰集团有限公司 | High-strength steel plate hot-stamping molding production line and production process thereof |
| DE102012110649C5 (en) * | 2012-11-07 | 2018-03-01 | Benteler Automobiltechnik Gmbh | Thermoforming line and method for producing a hot-formed and press-hardened motor vehicle component |
| CN203235831U (en) * | 2013-03-14 | 2013-10-16 | 陈涛 | Plate heating forming device |
| KR101461887B1 (en) * | 2013-03-15 | 2014-11-13 | 현대자동차 주식회사 | Hot stamping mold |
| CN103233109B (en) * | 2013-05-13 | 2014-08-13 | 武汉钢铁(集团)公司 | Control method and device for hot-forming plasticity distribution of high-strength steel |
| CN103464607A (en) * | 2013-09-26 | 2013-12-25 | 哈尔滨工业大学（威海） | Modularized differential temperature forming hot punching mold |
| DE102014119545A1 (en) * | 2014-12-23 | 2016-06-23 | Benteler Automobiltechnik Gmbh | Spring-mounted segmented hot-forming tool and method for producing a hot-formed and press-hardened steel component with a sharply bordered transition region |
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| CN105215160B (en) * | 2015-10-29 | 2018-11-06 | 武汉理工大学 | A kind of multistation Continuous Heat stamping line and method |
| JP6674227B2 (en) * | 2015-10-30 | 2020-04-01 | 株式会社浅野研究所 | Thermoforming apparatus and thermoforming method |
| CN105834268A (en) * | 2016-03-28 | 2016-08-10 | 昆山传适达汽车传动系统有限公司 | Hot stamping and forming production line for aluminum alloy sheet materials |
| CN106584891A (en) * | 2016-12-07 | 2017-04-26 | 天长市良文运动器材有限公司 | Linear carbon fiber bat mold heating forming equipment |
-
2017
- 2017-06-22 CN CN201710478108.5A patent/CN107186029A/en active Pending
- 2017-09-07 CN CN201710799611.0A patent/CN107552625B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN114908237A (en) * | 2022-05-10 | 2022-08-16 | 宣城冠晟汽车科技有限公司 | Local softening device for automobile thermal forming part |
| CN114908237B (en) * | 2022-05-10 | 2023-11-10 | 宣城冠晟汽车科技有限公司 | Local softening device of automobile thermoforming part |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107552625B (en) | 2019-10-01 |
| CN107552625A (en) | 2018-01-09 |
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Application publication date: 20170922 |