CN102482725A - Method and apparatus for performing an energy efficient thermoforming process - Google Patents
Method and apparatus for performing an energy efficient thermoforming process Download PDFInfo
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- CN102482725A CN102482725A CN2010800331061A CN201080033106A CN102482725A CN 102482725 A CN102482725 A CN 102482725A CN 2010800331061 A CN2010800331061 A CN 2010800331061A CN 201080033106 A CN201080033106 A CN 201080033106A CN 102482725 A CN102482725 A CN 102482725A
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- steel part
- austenitizing
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- hot stove
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- 238000000034 method Methods 0.000 title claims abstract description 47
- 238000003856 thermoforming Methods 0.000 title claims description 28
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 100
- 239000010959 steel Substances 0.000 claims abstract description 100
- 238000010438 heat treatment Methods 0.000 claims abstract description 17
- 238000007493 shaping process Methods 0.000 claims description 20
- 239000011248 coating agent Substances 0.000 claims description 17
- 238000000576 coating method Methods 0.000 claims description 17
- 238000005496 tempering Methods 0.000 claims description 10
- 229910000789 Aluminium-silicon alloy Inorganic materials 0.000 claims description 9
- 238000002485 combustion reaction Methods 0.000 claims description 8
- 238000000465 moulding Methods 0.000 claims description 8
- 238000007669 thermal treatment Methods 0.000 claims description 8
- 239000002918 waste heat Substances 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 9
- 230000001351 cycling effect Effects 0.000 description 8
- 238000010791 quenching Methods 0.000 description 5
- 230000000171 quenching effect Effects 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910000734 martensite Inorganic materials 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/62—Quenching devices
- C21D1/673—Quenching devices for die quenching
-
- 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
- B21D22/20—Deep-drawing
- B21D22/208—Deep-drawing by heating the blank or deep-drawing 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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/20—Deep-drawing
- B21D22/22—Deep-drawing with devices for holding the edge of the blanks
-
- 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
- B21D24/00—Special deep-drawing arrangements in, or in connection with, presses
- B21D24/005—Multi-stage presses
-
- 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
- C21D1/25—Hardening, combined with annealing between 300 degrees Celsius and 600 degrees Celsius, i.e. heat refining ("Vergüten")
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0006—Details, accessories not peculiar to any of the following furnaces
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0062—Heat-treating apparatus with a cooling or quenching zone
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
- C21D9/48—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals deep-drawing sheets
-
- 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
- C21D2221/00—Treating localised areas of an article
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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)
- Heat Treatment Of Articles (AREA)
Abstract
The invention relates to a method for hot forming steel components, in particular slabs or blanks made of steel, in which method the steel component in a furnace is heated to a temperature above the ACl temperature for at least partial austenitization and is subjected to a hot forming process in a forming tool. The object of the present invention is to provide a method for hot forming a steel part, which method allows an energy-efficient hot forming process to be carried out and at the same time shortens the cycle time for producing hot formed parts, whereby the object is achieved: before and/or after the at least partial austenitizing of the steel component, the waste heat of the hot furnace is used for further heat treatment steps of the steel component.
Description
Technical field
The present invention relates to a kind of to steel part, particularly the slab that is made up of steel or blank are carried out the method that thermoforming is handled; In the method; To be heated above the temperature of Ac1 temperature at the steel part in the hot stove; Carry out austenitizing with part at least, and in shaping jig, carry out thermoforming and handle.In addition; The present invention relates to be used to implement the device of this method; It has with steel part be heated to more than the Ac1 temperature so that steel part at least part form the hot stove of austenitic structure; Also have the shaping jig that is used to make the steel part thermoforming, and have the member that steel part is delivered to shaping jig from hot stove.
Background technology
Steel part on meaning of the present invention for example is slab or blank, and this slab or blank are provided for carrying out thermoforming and handle.Blank can for example exist as blanking or as preformed slab.Handle for implementing thermoforming, the steel part that must will be used for thermoforming at first is heated above the temperature of AC1 temperature spot, thereby makes the structure of steel part carry out austenitizing at least in part.Yet preferably this steel part fully carries out austenitizing.For this reason, usually this steel part is heated above the temperature of AC3 temperature spot, being formed under this temperature condition of austenitic structure finishes, and this steel part is in austenitic structure fully thus.
Then, steel part is embedded in the shaping jig, and under the temperature condition that is higher than the AC1 temperature spot, carry out thermoforming and handle.Rely on shaping jig, carry out so-called " compacting is quenched ", in this process, because cooling fast, the austenitic structure of the steel part of moulding is converted into martensitic structure.Generated thus and had high-intensity thermoforming steel part.In order to prevent in the process of steel part being carried out Temperature Treatment, to generate oxide debris, and simultaneously for anti-corrosion protection is provided, the steel part that is used for thermoforming preferably carries out coating with the AlSi layer.At last; Then suppress the quenching step and carry out another algorithm, the steel part to moulding in this step carries out another step thermal treatment, for example carries out temper; Thereby, for example improve its ductibility in certain zone or on the whole to the performance change again of steel part.
Thermoforming is the energy-intensive process on the one hand, this be because, must be in several minutes steel part be heated above the temperature of AC1 temperature spot, perhaps be heated above the temperature of AC3 temperature spot, and maintenance several minutes under this temperature condition.Other energy is then used in forming step with the form of heat in shaping jig and in another heat treatment step.This is also effective for the preheating that possibly occur, and this preheating is before the temperature course that steel part is heated above the AC1 temperature spot, to carry out.This has shown that particularly the energy charge in the process that steel part is produced in batches is unfavorable for the economy of preceding method.Confirmed that in addition be should be improved the cycling time of manufacturing that is used for the steel part of thermoforming.Known by German document DE 102005033042B3, the preheating of the blank with metallic coating that is used to suppress quenching is heated at least the used heat of the process of cooling of the blank more than the AC1 temperature through utilization realizes.Yet this has shown that the waste heat that stems from the blank process of cooling is insufficient for obvious reduction energy cost.
Summary of the invention
Thereby, the objective of the invention is to, provide a kind of steel part is carried out the method that thermoforming is handled, this method has realized the enforcement that the thermoforming of energy efficient is handled, and has shortened the cycling time of making the thermoforming parts simultaneously.In addition, a kind of device that is used for the method for embodiment of the present invention is provided.
For such method,, realized above-mentioned purpose thus: steel part is being carried out at least in part before the austenitizing and/or afterwards, using the used heat of hot stove to be used for other heat treatment step of steel part according to first principle of the present invention.
This has shown, for realizing that steel part is carried out the hot stove that austenitizing uses has at least in part produced a large amount of used heat, such used heat does not also obtain utilizing so far.According to the present invention, the used heat of this hot stove should carry out before the austenitizing at least in part and/or afterwards, be used for other heat treatment step of steel part to steel part, thus conserve energy significantly.
If before carrying out austenitizing at least in part; Steel part obtains heating through the used heat that uses hot stove; Can be able to shorten the cycling time that is used for whole thermoforming so; This is because being used in the hot stove carries out the parts of austenitizing at least in part because higher entering temperature obviously reaches desired temperature quickly, and can not use obvious more energy during the course.Be used for to steel part at least part carry out austenitizing hot stove the used heat heat greatly in so far, that is, the used heat that heat required thermal treatment after leads to superheater is provided.Energy efficient property according to the method for the invention can be further enhanced thus.
First plan is according to the method for the invention used straight-flow furnace, and preferred roller stove is used for steel part is carried out austenitizing at least in part.Straight-flow furnace or roller stove provide simple possibility, that is, in a successive processes, steel part is carried out austenitizing at least in part, and embed corresponding production line.
Can in preposition or rearmounted thermal treatment, can be improved thus by employed used heat heat, that is, be used in the hot stove that steel part is carried out austenitizing at least in part and use gas heating at least in part, and utilized the combustion exhaust of hot stove.So-called reverberatory furnace can be in the extremely short time be heated above parts the desired temperature of AC1 temperature spot, perhaps is heated above the temperature of AC3 temperature spot, shortens relatively the cycling time that steel part is carried out austenitizing at least in part thereby be used in.In addition, the used heat of combustion gases obtains utilizing with simple mode, uses this mode, for example through heat exchanger energy is extracted out from gas, perhaps waste gas directly is used for other thermal treatment.It is also conceivable that the heat passage member of induction is arranged and/or carry out heat passage member through thermal radiation with the hot stove optional equipment of gas heating.
If; The used heat that is used for steel part is carried out at least in part the hot stove of austenitizing through use; Make steel part, especially steel part metallic coating, preferred AlSi coating heated or the prealloy processing in preheating oven, so, just can shorten cycling time; The while conserve energy, be in the needed time of hot stove that is used for steel part is carried out at least in part austenitizing this cycling time.This point is that on the one hand the steel part through heating needs energy still less, just can be heated to the temperature of expection.On the other hand; For example carrying out prealloy through the steel part to AlSi coating metallic coating, preferred handles; In the AlSi coating, obtained higher iron level; Such iron level can cause the roughening of top coat, obviously obtains more efficiently utilizing thereby be used in the radiations heat energy that steel part is carried out in the hot stove of austenitizing at least in part.Reflection characteristic through the steel part of pre-alloyed metallic coating, preferred AlSi coating significantly improves.
The further lifting of energy efficiency according to the method for the invention can realize thus, that is, the used heat that is used for steel part is carried out at least in part the hot stove of austenitizing at least in part heats the shaping jig that is used for thermoforming and handles.In the position of corresponding heating, can for example in steel part, adjust another kind of structure partly, thereby the various parts performance can be provided in the steel part of moulding.
Alternatively, after the steel part moulding, carry out other thermal treatment, the used heat that this thermal treatment plan according to the method for the invention can be advantageously be used for steel part is carried out at least in part the hot stove of austenitizing through use carries out.
And then the typical heat treatment step that carries out of forming step for example is tempering, for example the localized tempering of the steel part of moulding, quenching is handled, thereby for example in the part to the component capabilities change.
In order further to improve the high efficiency that used heat utilizes, before steel part being carried out at least in part austenitizing and/or afterwards, the heat treatment step that steel part carries out is realized through forced convection.In the forced convection process, heat passage obvious raising, this be because steel part to be heated or for example the part of instrument flow through with the gas-jet of heat, thereby intensive contact takes place between the gas molecule of heat and parts to be heated.
Preferably steel part is heated to 200 ℃ to the temperature between the AC1 temperature in preheating oven, preferably is heated to the temperature between 250 ℃ to 700 ℃.Then, make steel part without coating only need less energy just can be heated above the temperature of AC1 at the hot stove that is used for carrying out at least in part austenitizing.In addition, for example just can carry out the prealloy processing in this TR with the short residence time, thereby be implemented in the heat-up time of shortening that is used for steel part is carried out at least in part the hot stove of austenitizing especially with the AlSi coating through the parts of coating.
According to second principle of the present invention, realize thus: member promptly is set, is used for before or after steel part is carried out austenitizing at least in part, using the used heat of hot stove about the above-mentioned purpose of installing.
It is diversified being used to use the member of used heat that is used for steel part is carried out at least in part the hot stove of austenitizing, and can be constructed as multi-form.These members generally include pipeline and blower equipment, and these members can be used to use the gas with transporting hot.In addition, heat exchanger can be set, its heat with combustion exhaust in the hot stove is passed to other thermal conductance media.As a result, through using above-mentioned member, make the energy efficient property that is used for steel part being carried out the method that thermoforming handles of the inventive method obtain remarkable improvement, and in addition, shortened the cycling time of making the thermoforming steel part.
Preferably therefore such member is set, it is used for preheating oven, shaping jig and/or tempering stove are heated.Thus, realized being used for steel part is carried out at least in part the utilization of used heat of the hot stove of austenitizing, thereby energy efficient ground promotes to be preheated to the main process of tempered from steel part.Yet particularly the heating of preheating oven causes the lifting of energy efficient property, because need significant amount of energy at this.
Another design according to device of the present invention is provided with straight-flow furnace, and preferred roller stove is in order to carry out austenitizing to steel part at least in part.As set forth before this, can be through using straight-flow furnace, preferred roller stove will be used for the simple Integrated Solution that steel part is heated to more than the AC1 temperature is integrated into the process chain for preparing the thermoforming steel part.
Simple design according to device of the present invention; Be provided with medium pipeline and/or gas blower as being used to heat the member of preheating oven, shaping jig and/or tempering stove, be used for steel part is carried out at least in part the combustion exhaust of the hot stove of austenitizing in order to guiding.As implemented, when directly not using combustion exhaust, can also use heat exchanger.
Multiple possibility is arranged, method and apparatus of the present invention is designed and expands.To this, in claim 1 on the one hand and 9 the dependent claims and in the explanation of connection with figures, set forth in detail to embodiment.
Description of drawings
Unique accompanying drawing shows the synoptic diagram of an embodiment of device of the method for embodiment of the present invention.
Embodiment
Embodiment according to the method for the invention illustrated in fig. 1 comprises hot stove 1, is used to make steel part 2 to carry out austenitizing at least in part and handles.This steel part 2 at first is the plane slab that is made up of hardenable steel, in the embodiment according to Fig. 1, is heated at least 850 ℃ temperature, and in hot stove 1, is keeping about 2 to 15 minutes under this temperature condition, and this hot stove is configured to the roller stove.Through 850 ℃ and higher temperature, make slab 2 reach complete austenitizing.This slab preferably is made up of 22MnB5 shaped steel.
Be used for that at least in part slab 2 is carried out the hot stove that austenitizing handles and utilize gas heating.The instrument that is used for accordingly hot stove is heated 3 schematically shows at Fig. 1.In addition, typically transport roller 4 equally shown in Fig. 1 for the roller stove.The combustion exhaust of roller stove 1 is drawn from roller stove 1 through medium pipeline 5,6,7 and is used for other thermal treatment.For hot gas being introduced preheating oven 8, shaping jig 9 or tempering stove 10, extra gas blower 5a, 6a, the 7a of being provided with.
Medium pipeline 5 causes preheating oven 8 with the combustion exhaust of heat, in this preheating oven, slab 2 is heated to above 200 ℃ to the temperature between the AC1 temperature, preferably is heated to the temperature between 250 ℃ to 700 ℃.Stop duration in preheating oven is about 3 to 20 minutes, yet preferred 5 to 10 minutes.Show roller 4 equally, be used for slab 2 is transported to preheating oven.In preheating oven, slab 2 is as indicated above, be heated to high relatively temperature.If slab 2 has been applied in the AlSi coating; This slab can carry out prealloy in preheating oven under corresponding temperature condition handles; This corresponding temperature for example can be between 500 and 700 ℃; And obtain a roughened surface structure, this surface tissue makes the for example simplification of the heating in roller stove 1 of slab 2 at this point.Through hot medium pipeline 5, the temperature of preheating oven can be adjusted through unshowned adjustment member.
For example be used for preheating oven 8 through the used heat that uses roller stove 1 energy has been practiced thrift in the preheating of slab 2 significantly, this is because can provide the slab that makes coating to carry out prealloy with simple mode and handle needed high temperature.Then, in the austenitization of roller stove 1, slab 2 is put into hot forming tool 9 and is carried out the thermoforming processing at this with high as far as possible temperature through using a unshowned treatment system, preferably suppresses quenching.The slab 2 that is provided with the AlSi coating can be heated to austenitizing temperature on the one hand non-scale, and can in shaping jig 9, carry out thermoforming processing or compacting quenching in non-scale ground equally.
Medium pipeline 7 is used for, and makes shaping jig carry out constant temperature in certain location through the used heat that uses roller stove 1 and handles.Shaping jig through heating or through the zone that constant temperature is handled, can on purpose generate another structure, for example through the extendable structure of the steel part 11 of moulding, yet, through becoming other zone of steel members 11, generate martensitic structure through quick cooling.The steel part 12 of moulding is heat-treated in tempering stove 10 alternatively again.In tempering stove 10, also can utilize the energy of the waste gas of roller stove 1, thereby for example carry out drawing process in partial section through the steel part 12 of ageing treatment.
Used heat through using roller stove 1 has been realized significant energy conservation.Between the single website, particularly the transportation between preheating oven 8, roller stove 1, shaping jig 9 and the tempering stove 10 can be guaranteed to realize through unshowned treatment system.Roller passage 4, shown in the aforementioned embodiment like it, can obtain replacement through treatment system.As a result, as shown in Figure 1, with method of the present invention or with device of the present invention, can guarantee when reducing energy expenditure, to be used in and significantly reduce the cycling time of making thermoforming steel part 11,12.
Claims (12)
1. one kind to steel part, particularly carry out the method that thermoforming is handled to the slab that is made up of steel or blank; In said method, the steel part in the hot stove is heated above the temperature of AC1 temperature, to carry out austenitizing at least in part; And in shaping jig, carry out thermoforming and handle; It is characterized in that, steel part is being carried out at least in part before the austenitizing and/or afterwards, use the used heat of hot stove to be used for other heat treatment step of steel part.
2. method according to claim 1 is characterized in that, for realizing that steel part is carried out austenitizing at least in part, uses straight-flow furnace, preferred roller stove.
3. method according to claim 1 and 2 is characterized in that, is used in the hot stove that steel part is carried out austenitizing at least in part and heats with gas at least in part, and the used heat of combustion exhaust in the hot stove is used for other thermal treatment.
4. according to any described method of claim 1 to 3; It is characterized in that; Be used for carrying out at least in part the used heat of the hot stove of austenitizing through use, make steel part, especially steel part metallic coating, preferred AlSi coating heated in preheating oven or prealloy is handled.
5. according to any described method of claim 1 to 4, it is characterized in that the used heat that is used for steel part is carried out at least in part the hot stove of austenitizing at least in part heats the shaping jig that is used for thermoforming and handles.
6. according to any described method of claim 1 to 5, it is characterized in that heat-treat step through the used heat that uses hot stove, particularly the steel part to moulding carries out temper.
7. according to any described method of claim 1 to 6, it is characterized in that, steel part is being carried out at least in part before the austenitizing and/or afterwards, realizing the heat treatment step of steel part through forced convection.
8. according to any described method of claim 1 to 7, it is characterized in that, in preheating oven, steel part is heated to 200 ℃ to the temperature between the AC1 temperature, preferably be heated to the temperature between 250 ℃ to 700 ℃.
9. be used for implementing the device according to any described method of claim 1 to 8, said device has hot stove (1), and this hot stove is used for steel part (2) is heated above the temperature of AC1 temperature, to form austenitic structure at least in part; Said device has shaping jig (9), handles in order to steel part (2) is carried out thermoforming; Said device has member (4), in order to steel part (2) is delivered to shaping jig (9) from hot stove (1), it is characterized in that, is provided for steel part being carried out at least in part before the austenitizing and/or using the member (5,6,7) of hot stove (1) used heat afterwards.
10. device according to claim 9 is characterized in that, member (5a, 6a, 7a) is set, in order to preheating oven (8), shaping jig (9) and/or tempering stove (10) are heated.
11. according to claim 9 or 10 described devices, it is characterized in that, be provided with straight-flow furnace, preferred roller stove (1), in order to steel part (2) is carried out austenitizing at least in part.
12. any described device according to claim 9 to 11; It is characterized in that; Be provided with medium pipeline (5,6,7) and/or gas blower (5a, 6a, 7a) as being used to heat the member of preheating oven, shaping jig, tempering stove, be used for carrying out at least in part the combustion exhaust of the hot stove (1) of austenitizing in order to guiding.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102009026251A DE102009026251A1 (en) | 2009-07-24 | 2009-07-24 | Method and device for energy-efficient hot forming |
| DE102009026251.2 | 2009-07-24 | ||
| PCT/EP2010/060052 WO2011009769A1 (en) | 2009-07-24 | 2010-07-13 | Method and device for energy-efficient hot forming |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102482725A true CN102482725A (en) | 2012-05-30 |
Family
ID=42731946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010800331061A Pending CN102482725A (en) | 2009-07-24 | 2010-07-13 | Method and apparatus for performing an energy efficient thermoforming process |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20120152410A1 (en) |
| EP (1) | EP2456896A1 (en) |
| CN (1) | CN102482725A (en) |
| DE (1) | DE102009026251A1 (en) |
| WO (1) | WO2011009769A1 (en) |
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|---|---|---|---|---|
| CN104174795A (en) * | 2013-05-23 | 2014-12-03 | 林德股份公司 | Plant and method for hot forming blanks |
| CN104534868A (en) * | 2014-10-31 | 2015-04-22 | 武汉钢铁(集团)公司 | Heat stamping forming board heating furnace |
| CN105408715A (en) * | 2013-07-22 | 2016-03-16 | 蒂森克虏伯钢铁欧洲股份公司 | Device for heat treatment of coated semifinished steel products |
| CN106929659A (en) * | 2015-12-23 | 2017-07-07 | 本特勒尔汽车技术有限公司 | Heat-treatment furnace and carry out heat-treating methods and method for manufacturing motor vehicle component for the plate slab to precoated shet |
| CN107257865A (en) * | 2015-02-06 | 2017-10-17 | 艾森曼欧洲公司 | For carrying out deformation heat treatment method, furnace apparatus and system to workpiece |
| CN110036121A (en) * | 2016-12-22 | 2019-07-19 | 自动工程有限公司 | For heating the method and heating system of blank |
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| CN105408715A (en) * | 2013-07-22 | 2016-03-16 | 蒂森克虏伯钢铁欧洲股份公司 | Device for heat treatment of coated semifinished steel products |
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| CN104534868A (en) * | 2014-10-31 | 2015-04-22 | 武汉钢铁(集团)公司 | Heat stamping forming board heating furnace |
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| CN106929659A (en) * | 2015-12-23 | 2017-07-07 | 本特勒尔汽车技术有限公司 | Heat-treatment furnace and carry out heat-treating methods and method for manufacturing motor vehicle component for the plate slab to precoated shet |
| CN106929659B (en) * | 2015-12-23 | 2019-09-03 | 本特勒尔汽车技术有限公司 | Heat-treatment furnace and heat-treating methods and method for manufacturing motor vehicle component are carried out for the plate slab to precoated shet |
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Also Published As
| Publication number | Publication date |
|---|---|
| US20120152410A1 (en) | 2012-06-21 |
| DE102009026251A1 (en) | 2011-02-03 |
| WO2011009769A9 (en) | 2011-06-16 |
| WO2011009769A1 (en) | 2011-01-27 |
| EP2456896A1 (en) | 2012-05-30 |
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