CN109365604A - A kind of hot stamping method and the drop stamping production line using heating in vacuum - Google Patents
A kind of hot stamping method and the drop stamping production line using heating in vacuum Download PDFInfo
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- CN109365604A CN109365604A CN201811364256.5A CN201811364256A CN109365604A CN 109365604 A CN109365604 A CN 109365604A CN 201811364256 A CN201811364256 A CN 201811364256A CN 109365604 A CN109365604 A CN 109365604A
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 101
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 24
- 239000011261 inert gas Substances 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 11
- 238000007254 oxidation reaction Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 9
- 230000003647 oxidation Effects 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 description 17
- 239000010959 steel Substances 0.000 description 17
- 238000007599 discharging Methods 0.000 description 10
- 239000007789 gas Substances 0.000 description 6
- 238000000465 moulding Methods 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 238000005336 cracking Methods 0.000 description 4
- 238000003856 thermoforming Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000006698 induction Effects 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- DQMUQFUTDWISTM-UHFFFAOYSA-N O.[O-2].[Fe+2].[Fe+2].[O-2] Chemical compound O.[O-2].[Fe+2].[Fe+2].[O-2] DQMUQFUTDWISTM-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229940056319 ferrosoferric oxide Drugs 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Classifications
-
- 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
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
-
- 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
Abstract
The invention discloses a kind of hot stamping method and using the drop stamping production line of heating in vacuum.The hot stamping method includes saying good-bye to blank；Blank after the completion of saying good-bye is heated in vacuum furnace, during heating, so that heating in vacuum furnace interior is in vacuum state, and heat the blank with the speed between 5-10 DEG C/s；When the temperature of blank is between 900-980 DEG C, inert gas is blown into heating in vacuum furnace interior；When the atmospheric pressure value of the environment locating for the blank is greater than or equal to atmospheric value, blank is taken out from vacuum furnace；Subsequent processing is carried out to the blank of taking-up and forms materials and parts.The technical solution adopted in the present invention, having many advantages, such as to prevent blank, its surface occurs oxidation, saves ball blast process, improves production efficiency and product quality during heating.
Description
Technical field
The present invention relates to drop stamping field, particularly a kind of hot stamping method and the drop stamping lifes using heating in vacuum
Producing line.
Background technique
It is obtained for the coated steel sheet of 22MnB5 steel or naked steel plate by drop stamping currently, generalling use material in automobile industry
High-intensitive components on to vehicle body, naked steel plate obtain relatively broad application because its price is relatively cheap.Due to naked steel plate
Oxide skin can be generated after heating, oxide skin is mainly made of ferrous oxide, ferroso-ferric oxide, di-iron trioxide, and matter is crisp, does not have
Extensibility, under mechanical action and under hot-working effect, it is easy to generate cracking and be detached from, hardness is higher than mold, therefore naked steel
For plate when forming on mold, oxide skin thereon will increase the friction between steel plate and mold, increase the abrasion of mold, reduce mould
The service life of tool；The generation of simultaneous oxidation skin can reduce the processability of steel plate, and generation is pulled；And the thermal conductivity of oxide skin
It is very low, seriously affect the heat transfer between steel plate and mold.Therefore, ball blast scale removal is usually required after naked steel plate forming.It throws
Ball is the steel sand stream bump workpiece surface scale removal using high-speed motion, and continuous mechanical shock easily generates part
Unacceptable deformation, not can guarantee dimensional accuracy, the part such as 1.0mm relatively thin to wall thickness and hereinafter, cause deformation possibility
Property it is very big, part especially not good enough to rigidity itself for example knocker absolutely cause to deform.In addition ball blast can generate dust
Effect on environment is also larger.
For above situation, thermoforming production line on the market mainly uses the producer for inhibiting naked steel plate oxidation at present
Method, this method is to be passed through inert gas in radiation furnace to reduce oxygen content, but since industrial furnace cavity is very big, gas
It is very long that atmosphere establishes the period, and can be opened and closed fire door online, and the oxygen content drop in furnace gas is low less than unlimited, and low-oxygen environment can only slow down
The oxidation rate of naked steel plate at high temperature, can not prevent the generation of oxide skin, especially when furnace gas mixing is non-uniform,
Naked steel plate oxidation can aggravate, and the surface quality after coated steel sheet thermoforming is not achieved in naked steel plate hot surface quality after molding always
Effect, therefore there are also the ball blast oil spout processes of one of scale removal after naked steel plate thermoforming.
Summary of the invention
In order to overcome the defects of the prior art, add the embodiment of the invention provides a kind of hot stamping method and using vacuum
At least one of the drop stamping production line of heat, be used to solve the above problems.
The embodiment of the present application discloses: a kind of hot stamping method, comprising the following steps:
It says good-bye to blank；
Blank after the completion of saying good-bye is heated in vacuum furnace, during heating, is made in vacuum furnace
Portion is in vacuum state, and heats the blank with the speed between 5-10 DEG C/s；
When the temperature of blank is between 900-980 DEG C, inert gas is blown into heating in vacuum furnace interior；
When the atmospheric pressure value of the environment locating for the blank is greater than or equal to atmospheric value, blank is taken out from vacuum furnace；
Subsequent processing is carried out to the blank of taking-up and forms materials and parts.
Preferably, in step " saying good-bye to blank " and step " to blank after the completion of saying good-bye in vacuum furnace
It is heated, during heating, so that heating in vacuum furnace interior is in vacuum state, and with the speed spoke between 5-10 DEG C/s
Penetrate heat the blank " between include: to be preheated to the blank after the completion of saying good-bye.
Preferably, step " preheating to the blank after the completion of saying good-bye " includes: the heating speed to be greater than 100 DEG C/s
When to blank heating between 500-550 DEG C, stop preheating the blank.
Preferably, step " blank after the completion of saying good-bye is heated in vacuum furnace, during heating,
So that heating in vacuum furnace interior is in vacuum state, and the blank heated with the speed between 5-10 DEG C/s " in, vacuum furnace
Internal vacuum degree is between 0.1-100Pa.
Preferably, " when the temperature of blank is between 900-980 DEG C, being blown into inertia to heating in vacuum furnace interior in step
In gas ", when the temperature of blank is at 930 DEG C, inert gas is blown into heating in vacuum furnace interior.
The embodiment of the present application also discloses a kind of drop stamping production line using heating in vacuum, comprising:
De-stacking device is used to say good-bye to blank；
Vacuum furnace, the vacuum furnace is for heating the blank after the completion of saying good-bye, the heating in vacuum
Furnace interior can be in vacuum state, and the heating in vacuum furnace interior can be passed through inert gas；
Aftertreatment device is used to carry out subsequent processing to the blank completed by the heating in vacuum stove heating.
Preferably, the vacuum furnace includes vacuum chamber, heating system and vacuum degree control system, the vacuum chamber is used
In placing blank, the heating system is for heating the blank, and the vacuum degree control system is for controlling the vacuum chamber
Vacuum degree.
Preferably, internal vacuum degree is between 0.1-100Pa when the vacuum furnace heats blank.
Using the drop stamping production line of heating in vacuum further include preheating system preferably, described, is used for having said good-bye
Blank after is preheated, and the blank after preheating is heated via the vacuum furnace again.
Preferably, the preheating system with greater than 100 DEG C/s heating speed to blank be preheated to 500-550 DEG C it
Between.
Beneficial effects of the present invention are as follows:
1. blank, during by heating in vacuum stove heating, vacuum furnace is in the vacuum shape between 0.1-100Pa
State, realizes blank and is heated in the environment of complete anaerobic and be increased to assigned temperature, avoids blank in temperature-rise period by oxygen
Change；
2. blank heats in vacuum furnace, it is blown into inert gas to vacuum furnace inner wall, adds vacuum
Air pressure in hot stove is greater than or equal to atmospheric pressure, can prevent when vacuum furnace is opened, and outside air largely enters inside it,
The environment of blank and heating in vacuum furnace interior is impacted；
3. the blank before pair being put into vacuum furnace carries out being preheated to 500- with the heating speed greater than 100 DEG C/s
550 DEG C, heating time of the blank in vacuum furnace had both been shortened, production efficiency has been improved, the surface of blank is not caused to send out yet
Raw oxidation reaction, product quality are protected；
4. since its surface does not generate oxide skin to blank after heating, greatly reduce mould in forming process
Have the phenomenon that plucking, improves die life, product after molding also saves ball blast process, avoids product during ball blast
The phenomenon that deformation or cracking, further increase product quality.
For above and other objects, features and advantages of the invention can be clearer and more comprehensible, preferred embodiment is cited below particularly,
And cooperate institute's accompanying drawings, it is described in detail below.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is described in the embodiment of the present invention using the structural schematic diagram of the drop stamping production line of heating in vacuum.
The appended drawing reference of the figures above: 10- hot stamping device, 20- vacuum furnace, the first feeding device of 30-, 40-
One discharging device, 41- discharging manipulator, 42- conveyer, 50- de-stacking device, 51- de-stacking trolley, 52- de-stacking manipulator, 60-
Preheating system, 61- pre-add hot-zone, the second feeding device of 62-, the second discharging device of 63-, 64- third feeding device.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As shown in Figure 1, including: using the drop stamping production line of heating in vacuum described in the embodiment of the present invention
De-stacking device 50 is used to say good-bye to blank；
Vacuum furnace 20, the vacuum furnace 20 is for heating the blank after the completion of saying good-bye, the vacuum
It can be in vacuum state inside heating furnace 20, inert gas can be passed through inside the vacuum furnace 20；
Aftertreatment device is used to carry out subsequent processing to the blank completed by the vacuum furnace 20 heating.
Specifically, the vacuum furnace 20 includes vacuum chamber, heating system and vacuum degree control system, the vacuum chamber
For placing blank, the heating system is for heating the blank, and the vacuum degree control system is for controlling the vacuum
The vacuum degree of room；The aftertreatment device includes for blank to be shaped to the hot stamping device 10 of materials and parts, is used for from described
Blank is removed and placed in the first feeding device 30 of the hot stamping device 10 in vacuum furnace 20 and is used for from described
Take the first discharging device 40 of the materials and parts after having formed in hot stamping device 10 away.Furthermore, it is understood that first feeding device
30 can be feeding robot or feeding manipulator, and first discharging device 40 includes discharging manipulator 41 and conveyer 42,
The de-stacking device 50 is including holding the de-stacking trolley 51 of blank and for saying good-bye from de-stacking trolley 51, the de-stacking of feeding is mechanical
Hand 52.
At work, de-stacking manipulator 52 is placed into the vacuum of vacuum furnace 20 from feeding on de-stacking trolley 51, blank
In room, then vacuum chamber is closed；Before starting to the indoor blank heating of vacuum, the vacuum-control(led) system is first by vacuum chamber
It is evacuated to certain vacuum degree, preferably, the vacuum degree is between 0.1-100Pa, in the heating process of blank, vacuum chamber
Vacuum degree be always held between 0.1-100Pa, make the indoor blank of vacuum heat temperature raising in the environment of complete anaerobic, keep away
Exempt from blank to be oxidized in temperature-rise period；After blank is warming up to assigned temperature, the vacuum-control(led) system is blown into vacuum chamber
Enter gas, preferably inert gas, so that the air pressure of vacuum chamber is greater than or equal to atmospheric pressure, avoid vacuum chamber opening so as to the first pan feeding
From vacuum furnace 20 when feeding, outside air largely enters in vacuum chamber device 30；First feeding device 30 adds from vacuum
It is put into rapidly in hot stamping device 10 after taking out blank in hot stove 20 and is formed, quenched, discharging manipulator 41 is from drop stamping
It takes product after molding in device 10 away, and is put into conveyer 42, product is delivered to designated position with person who happens to be on hand for an errand by conveyer 42
Work stacking.
By above structure, the drop stamping production line of the present invention using heating in vacuum passes through vacuum-control(led) system
The indoor vacuum degree of vacuum before blank heating and after heating is adjusted, blank quilt in the environment of complete anaerobic is realized
Heating is increased to assigned temperature, and blank is avoided to be oxidized in temperature-rise period, meanwhile, when opening vacuum chamber takes blank away, by
It is greater than or equal to atmospheric pressure in the air pressure of inert gas in vacuum chamber, can prevents outside air from largely entering in vacuum chamber to blank
It is impacted with the environment of vacuum chamber.Via the blank that the drop stamping production line of the present invention using heating in vacuum heats,
Its surface does not have oxide skin, therefore, the phenomenon that greatly reducing mold plucking in forming process, improves die life, in addition,
Subsequent ball blast process is also saved because surface does not have oxide skin by the molding product of the production line, meanwhile, it also avoids producing
The problems such as deformation that product generate during ball blast, cracking, improve the quality of product.
Preferably, the vacuum furnace 20 is in substantially rectangular parallelepiped structure, the vacuum chamber includes multiple along described rectangular
The vacuum layer that the length direction of body is stacked, i.e., the bottom of a upper vacuum layer are the top of next vacuum layer.Each institute
State vacuum layer be individually equipped with for locking the vacuum layer with ensure vacuum layer closure air-tightness pressing device and be used for by
The pressing device is promoted to open the hoisting mechanism of the vacuum layer, that is to say, that the opening and closing of each layer of vacuum layer are equal
It is independent operation, does not influence the state of other vacuum layers, in order to avoid influencing the air-tightness of other vacuum layers, and then influences its building ring
Border.The heating system includes the heater and temperature inductor being arranged in each vacuum layer, i.e., the described heating system
Including multiple heaters and multiple temperature inductors, heater is to heat blank, and temperature inductor is for incuding base
The temperature of material, judges whether blank is heated to assigned temperature.
Using the above structure, vacuum chamber is divided into the true of multiple independent works by vacuum furnace 20 described in the present embodiment
Dead level reduces the heating space of single blank, and the atmosphere for being conducive to shorten vacuum chamber is established the period, improves production efficiency.
Preferably, the drop stamping production line described in the present embodiment using heating in vacuum further includes preheating system 60,
It is used to preheat the blank for completion of saying good-bye, and the blank after preheating is added via the vacuum furnace 20 again
Heat.Further, the preheating system 60 is preheated between 500-550 DEG C blank, preferably, the preheating system
60 heat blank with the heating speed greater than 100 DEG C/s.Specifically, the preheating system 60 includes pre-add hot-zone
61, for receiving the blank from the de-stacking device 50 and blank being delivered to the second feeding device of the pre-add hot-zone 61
62, for by the second discharging device 63 for being exported from the pre-add hot-zone 61 of blank after the completion of preheating and be used for by
Blank on second discharging device 63 is put into the third feeding device 64 of the vacuum furnace 20.At work, de-stacking
Blank is put into the second feeding device 62 by manipulator 52 after grabbing blank on de-stacking trolley 51, and the second feeding device 62 is by base
Material, which is delivered in pre-add hot-zone 61, to be heated, preferably, the pre-add hot-zone 61 includes the sense for carrying out induction heating to blank
Heater is answered, the induction heater heats blank with the heating speed greater than 100 DEG C/s, when blank is heated to
It after between 500-550 DEG C, is exported by the second discharging device 63, blank is sent into vacuum furnace 20 by third feeding device 64.
Using the above structure, it is placed into again after blank is extremely fast heated to 500-550 DEG C in preheating system 60 true
It is heated in empty heating furnace 20, substantially reduces the heating time that blank rises to assigned temperature in vacuum furnace 20, improve
Production efficiency, meanwhile, when blank is preheated system 60 and is heated to 500-550 DEG C, blank will not occur with the oxygen in air
Oxidation reaction, the i.e. surface of blank will not generate oxide skin, and therefore, the quality of blank is ensured.
The present invention also provides a kind of hot stamping methods, comprising the following steps:
It says good-bye to blank；
Blank after the completion of saying good-bye is heated in vacuum furnace 20, during heating, makes vacuum furnace
20 inside are in vacuum state, and heat the blank with the speed between 5-10 DEG C/s；
When the temperature of blank is between 900-980 DEG C, to vacuum furnace 20 inside be blown into inert gas；
When the atmospheric pressure value of the environment locating for the blank is greater than or equal to atmospheric value, base is taken out from vacuum furnace 20
Material；
Subsequent processing is carried out to the blank of taking-up and forms materials and parts.
Preferably, in step " saying good-bye to blank " and step " to blank after the completion of saying good-bye in vacuum furnace
It is heated, during heating, so that heating in vacuum furnace interior is in vacuum state, and with the speed spoke between 5-10 DEG C/s
Penetrate heat the blank " between include: to be preheated to the blank after the completion of saying good-bye.Further, reach in blank temperature
When between 500-550 DEG C, stop preheating the blank, specifically, blank is by be greater than 100 DEG C/s in preheating process
Heating speed induction heating between 500-550 DEG C, that is to say, that the preheating time is very of short duration.This temperature is advantageous
The time required for shortening blank and rising to 900 DEG C or more in vacuum furnace 20, make blank in vacuum furnace 20
Heating cycle shortened to only 40-180 seconds, and blank is also avoided to lead to its surface by the dioxygen oxidation in air in preheating
Oxide skin is generated, ensure that the quality of product.
Preferably, step " blank after the completion of saying good-bye is heated in vacuum furnace, during heating,
So that heating in vacuum furnace interior is in vacuum state, and the blank heated with the speed between 5-10 DEG C/s " in, vacuum furnace
Internal vacuum degree between 0.1-100Pa, be heated up in the environment of complete anaerobic with the blank in fidelity empty room to
900 DEG C or more, prevent blank surface from generating oxide skin.
Preferably, " when the temperature of blank is between 900-980 DEG C, being blown into inertia to heating in vacuum furnace interior in step
In gas ", when the temperature of blank is at 930 DEG C, inert gas, temperature of the blank at 930 DEG C are blown into heating in vacuum furnace interior
Under come out of the stove and operate into mold the materials and parts for carrying out thermoforming, obtaining after quenching, mechanical performance is excellent.
Hot stamping method described in the embodiment of the present invention has the advantage that
1. blank by vacuum furnace 20 during being heated, vacuum furnace 20 is in true between 0.1-100Pa
Dummy status, realizes blank and is heated in the environment of complete anaerobic and be increased to assigned temperature, avoids blank in temperature-rise period
It is oxidized；
2. blank heats in vacuum furnace 20, it is blown into inert gas to 20 inner wall of vacuum furnace, is made true
Air pressure in empty heating furnace 20 is greater than or equal to atmospheric pressure, can prevent when vacuum furnace 20 is opened, outside air largely into
Enter inside it, the environment inside blank and vacuum furnace 20 is impacted；
3. the blank before pair being put into vacuum furnace 20 carries out being preheated to 500- with the heating speed greater than 100 DEG C/s
550 DEG C, heating time of the blank in vacuum furnace 20 had both been shortened, production efficiency has been improved, does not also cause the surface of blank
Oxidation reaction occurs, product quality is protected；
4. since its surface does not generate oxide skin to blank after heating, greatly reduce mould in forming process
Have the phenomenon that plucking, improves die life, product after molding also saves ball blast process, avoids product during ball blast
The phenomenon that deformation or cracking, further increase product quality.
Specific embodiment is applied in the present invention, and principle and implementation of the present invention are described, above embodiments
Explanation be merely used to help understand method and its core concept of the invention；At the same time, for those skilled in the art,
According to the thought of the present invention, there will be changes in the specific implementation manner and application range, in conclusion in this specification
Appearance should not be construed as limiting the invention.
Claims (10)
1. a kind of hot stamping method, which comprises the following steps:
It says good-bye to blank；
Blank after the completion of saying good-bye is heated in vacuum furnace, during heating, is made at heating in vacuum furnace interior
The blank is heated in vacuum state, and with the speed between 5-10 DEG C/s；
When the temperature of blank is between 900-980 DEG C, inert gas is blown into heating in vacuum furnace interior；
When the atmospheric pressure value of the environment locating for the blank is greater than or equal to atmospheric value, blank is taken out from vacuum furnace；
Subsequent processing is carried out to the blank of taking-up and forms materials and parts.
2. hot stamping method according to claim 1, which is characterized in that in step " saying good-bye to blank " and step
" blank after the completion of saying good-bye is heated in vacuum furnace, during heating, heating in vacuum furnace interior is made to be in true
Include: between dummy status, and with the speed radiant heating blank between 5-10 DEG C/s "
Blank after the completion of saying good-bye is preheated.
3. hot stamping method according to claim 2, which is characterized in that step " carries out the blank after the completion of saying good-bye pre-
Heat " include:
With the heating speed greater than 100 DEG C/s to blank heating between 500-550 DEG C when, stop preheating the blank.
4. hot stamping method according to claim 1, which is characterized in that in step " to blank after the completion of saying good-bye true
Heated in empty heating furnace, during heating, heating in vacuum furnace interior made to be in vacuum state, and with 5-10 DEG C/s it
Between speed heat the blank " in, the vacuum degree of heating in vacuum furnace interior is between 0.1-100Pa.
5. hot stamping method according to claim 1, which is characterized in that in step " when the temperature of blank is at 900-980 DEG C
Between when, be blown into inert gas to heating in vacuum furnace interior " in, when the temperature of blank is at 930 DEG C, to heating in vacuum furnace interior
It is blown into inert gas.
6. a kind of drop stamping production line using heating in vacuum characterized by comprising
De-stacking device is used to say good-bye to blank；
Vacuum furnace, the vacuum furnace is for heating the blank after the completion of saying good-bye, in the vacuum furnace
Portion can be in vacuum state, and the heating in vacuum furnace interior can be passed through inert gas；
Aftertreatment device is used to carry out subsequent processing to the blank completed by the heating in vacuum stove heating.
7. the drop stamping production line according to claim 6 using heating in vacuum, which is characterized in that the vacuum furnace
Including vacuum chamber, heating system and vacuum degree control system, the vacuum chamber is for placing blank, and the heating system is for adding
The heat blank, the vacuum degree control system are used to control the vacuum degree of the vacuum chamber.
8. the drop stamping production line according to claim 6 using heating in vacuum, which is characterized in that the vacuum furnace
When heating to blank, internal vacuum degree is between 0.1-100Pa.
9. the drop stamping production line according to claim 6 using heating in vacuum, which is characterized in that described to be added using vacuum
The drop stamping production line of heat further includes preheating system, is used to preheat the blank after the completion of saying good-bye, after preheating
Blank heated again via the vacuum furnace.
10. the drop stamping production line according to claim 9 using heating in vacuum, which is characterized in that the preheating system
System is preheated between 500-550 DEG C blank with the heating speed greater than 100 DEG C/s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811364256.5A CN109365604A (en) | 2018-11-16 | 2018-11-16 | A kind of hot stamping method and the drop stamping production line using heating in vacuum |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811364256.5A CN109365604A (en) | 2018-11-16 | 2018-11-16 | A kind of hot stamping method and the drop stamping production line using heating in vacuum |
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| CN109365604A true CN109365604A (en) | 2019-02-22 |
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| CN201811364256.5A Pending CN109365604A (en) | 2018-11-16 | 2018-11-16 | A kind of hot stamping method and the drop stamping production line using heating in vacuum |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110449501A (en) * | 2019-08-26 | 2019-11-15 | 芜湖容大机械制造有限公司 | High performance alloys Metal Sheets for Body-manufacturing stamping device |
| WO2021056714A1 (en) * | 2019-09-24 | 2021-04-01 | 苏州普热斯勒先进成型技术有限公司 | Hot stamping production line |
| WO2024021560A1 (en) * | 2022-07-28 | 2024-02-01 | 苏州普热斯勒先进成型技术有限公司 | Device and method for manufacturing hot-stamped part |
Citations (7)
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| WO2024021560A1 (en) * | 2022-07-28 | 2024-02-01 | 苏州普热斯勒先进成型技术有限公司 | Device and method for manufacturing hot-stamped part |
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