CN101796202A - Method for producing a shaped component comprising at least two joining areas having different ductility - Google Patents
Method for producing a shaped component comprising at least two joining areas having different ductility Download PDFInfo
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- CN101796202A CN101796202A CN200880105421A CN200880105421A CN101796202A CN 101796202 A CN101796202 A CN 101796202A CN 200880105421 A CN200880105421 A CN 200880105421A CN 200880105421 A CN200880105421 A CN 200880105421A CN 101796202 A CN101796202 A CN 101796202A
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- slab
- temperature
- shaped component
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/02—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity of multiple-track type; of multiple-chamber type; Combinations of furnaces
- F27B9/028—Multi-chamber type furnaces
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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
- C21D2221/00—Treating localised areas of an article
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Heat Treatment Of Articles (AREA)
- Heat Treatment Of Sheet Steel (AREA)
Abstract
According to the method, a printed circuit board (7) that is severed from the strip material (4) comprising coated, high-strength boron steel is homogeneously heated in a furnace (11) having a plurality of temperature zones (8, 9, 10) first in a first zone (8) to a temperature of approximately 830 C to 950 C and maintainedat said temperature level for a define time (t). Thereafter, a region (12) of a first type of the printed circuit board (7) is cooled in a second zone (9) of the furnace (11) to a temperature of approximately 550 C to 700 C and maintained at said lowered temperature level for a defined time (t1). At the same time, a region (13) of a second type of the printed circuit board (7) in a third zone (10) of the furnace (11) is maintained at a temperature level of approximately 830 C to 950 C during a time (t2). After said heat treatment, a printed circuit board (7) is formed into a formed component (1) in a thermoforming process. The strip material is pre-coated with an aluminum silicon diffusion alloy.
Description
Technical field
The present invention relates to a kind of method that is used for being had by the slab manufacturing from the isolating metal of strip material the shaped component of the different tissue regions of at least two ductility, wherein slab differently heats by the zone and is subjected to the thermoforming process then to be deformed into shaped component (claim 1,2 and 3 preamble).
Background technology
DE 102 56 621 B3 describe a kind of method that is used to make the shaped component with the different tissue regions of at least two ductility, and describe a kind of continuous passing furnace that is used for this method.By this suggestion, the work in-process that are made of hardenable steel are by continuous passing furnace, and this continuous passing furnace has at least two subregions that are provided with abreast along direction of passage that have the differing temps level.Heat on this work in-process different heights ground, make in back to back thermoforming process, to form two tissues that ductility is different.
By the known a kind of method that is used to make shaped component of DE 102 08 216 C1 with the different tissue regions of at least two ductility.Pass heating unit and be heated to austenitizing temperature therein fully at these work in-process that constitute by hardenable steel with uniform temperature distribution.And then half-finished first kind subregion is cooling like this during it continues to carry, and makes it possible to achieve basic material and converts ferrite and/or perlite to by austenite.Therefore in back to back thermoforming process, do not have or only few martensite composition generation.Therefore first kind subregion has high ductility.Simultaneously during carrying in another subregion of half-finished second class temperature just keep high must make and then have enough martensite compositions in the thermoforming process.Therefore the second class subregion has less extension characteristics with respect to first kind subregion, but therefore has higher intensity.
Although in stove, under nitrogen atmosphere, implement heating, can not stop corresponding work in-process when it moves to moulding press from stove and oxidation when moulding process according to above-mentioned two kinds of methods.
Summary of the invention
Being set out by prior art the objective of the invention is to, and realizes a kind of shaped component that has the different tissue regions of at least two ductility that is used to make, and wherein avoids the problem based on oxidation.
First solution of the object of the invention is the feature of claim 1.
Therefore in adopting the shaped component that constitutes by the high-intensity boron steel that is provided with aluminium/silicon coating, be heated to such temperature at first fully equably and remain on this temperature levels from the isolating slab of the strip material that constitutes by such material in the time of determining, make diffusion layer constitute corrosion-resistant coating or antioxidation coating, the diffuse of its floating coat is in basic material.Heating temperature is approximately 830 ℃ to 950 ℃ preferred 920 ℃.Uniform heating is advantageously carried out in first subregion with the sectional continuous passing furnace of a plurality of temperature.And then this method steps, the first kind zone of slab are cooled to downwards in second subregion of stove on the temperature that austenite decomposes.This realizes in about 550 ℃ to 700 ℃ preferred temperature of 625 ℃.The temperature levels that descends kept for the time of determining, made austenitic decomposition carry out faultlessly.
By the first kind zone of local cooling slab, temperature just keeps high must making in back to back hot compacting can also have enough martensite compositions in corresponding press at least one second class zone in the 3rd subregion of stove simultaneously.This temperature preferably approximately in 830 ℃ to 950 ℃ is 900 ℃.
The first and second class zones of shaped component have different extension characteristics in such a way, though wherein the second class zone has less ductility with respect to the first kind is regional, so have higher strength characteristics.
Shaped component on purpose adaptive following requirement aspect concrete portion's section of therefore making like this, promptly described shaped component aspect its characteristic as structural member for example the integral part of vehicle body must satisfy these requirements.
Second solution of the object of the invention is the feature of claim 2.
In order to constitute diffusion layer as corrosion-resistant coating or antioxidation coating, this strip material that in first algorithm, constitutes by the high-intensity boron steel that is provided with aluminium/silicon coating in forehearth through out-of-date generation alloy (durchlegieren) and cooling then.Temperature is that 830 ℃ to 950 ℃ preferably approximatelies are 920 ℃.
Slab separates from the strip material that alloy takes place in another algorithm then.And then each isolating slab is transferred in two subregion stoves.Austenitizing is carried out in the second class zone at this slab in the temperature of 930 ℃ of about 830 ℃ to 950 ℃ preferably approximatelies.First kind zone maximum heating is to the following temperature of austenitizing temperature.680 ℃ of about 550 ℃ to the 700 ℃ preferably approximatelies of this temperature.
This thermal treatment causes, and the second class zone of the shaped component of being made by slab in the thermoforming process at last has less extension characteristics with respect to first kind zone, but therefore has higher strength characteristics.
The third solution of the object of the invention is the feature of claim 3.
Adopting the strip material separation of slab in first algorithm in the shaped component that constitutes by the high-intensity boron steel that is provided with aluminium/silicon coating at this from constituting by this material.And then in second algorithm each slab in forehearth even heating to the temperature of 920 ℃ of about 830 ℃ to 950 ℃ preferably approximatelies, on one definite period, remain on this temperature levels and cooling again then.Realize that at this diffusion layer constitutes corrosion-resistant coating or antioxidation coating that the aluminium/silicon coating by strip material constitutes.Each slab is transferred in two subregion stoves and be heated to the temperature of 680 ℃ of about 550 ℃ to 700 ℃ preferably approximatelies about first kind zone again in first subregion of stove in the 3rd algorithm then.The second class zone is heated to the temperature of 920 ℃ of 830 ℃ to 950 ℃ preferably approximatelies in second subregion of stove simultaneously.Last slab is deformed into shaped component in the thermoforming process.Shaped component has less extension characteristics about the second class zone with respect to first kind zone then, but has higher strength characteristics.
Resolve into ferrite and pearlitic conversion temp in order to quicken to be cooled to austenite, according to the feature of claim 4, the first kind zone of local cooling slab following carrying out after heating, promptly touch with the cooling cramp joint in short time in first kind zone.
But by the feature of claim 5 also possible be that the first kind of slab zone is with the winding-up of refrigerative gas after heating.
Preferred this can followingly realize that by claim 6 promptly nitrogen is used as described gas.
Description of drawings
Explain the present invention in detail by means of the embodiment that is described in the drawings below.Wherein:
Fig. 1 shows the view of the shaped component with the different tissue regions of two ductility;
Fig. 2 shows the synoptic diagram of the other method be used to make the shaped component with the different tissue regions of two ductility;
Fig. 3 shows the synoptic diagram of the third method be used to make the shaped component with the different tissue regions of two ductility.
Embodiment
In Fig. 1 to 3 with 1 shaped component of representing to have the different tissue regions 2,3 of two ductility.Shaped component 1 relates to the B door pillar of the vehicle body of not describing in detail in addition.
The manufacturing of shaped component 1 is realized by the high-intensity boron steel that is provided with aluminium/silicon coating.
The strip material of being made by this steel 4 is according to Fig. 1 coiling 5.Stamping machine 6 is extracted and passed to strip material 4 out continuously by volume 5 then.Slab 7 is delivered to the continuous passing furnace 11 with three temperature subregions 8,9,10 after strip material 4 separation and described slab in stamping machine 6.
Each slab 7 is heated to 830 ℃ to 950 ℃ preferred 920 ℃ temperature fully equably and remains on (Fig. 2) on this temperature levels on the time t that determines in first subregion 8 of continuous passing furnace 11.
And then the first kind zone 12 of slab 7 is cooled to the temperature of 625 ℃ of about 550 ℃ to 700 ℃ preferably approximatelies and the time t that is determining downwards in second subregion 9 of continuous passing furnace 11
1On remain on the temperature levels of this decline.The second class zone 13 of slab 7 remains on the temperature levels of 900 ℃ of about 830 ℃ to 950 ℃ preferably approximatelies at the 3rd subregion 10 of continuous passing furnace 11 simultaneously.
Heat treated then slab 7 after coming out by continuous passing furnace 11 in the press of not describing in detail hot compacting be shaped component 1.
Below the continuous passing furnace 11 and above the temporal temperature trend of the 12 and second class zone 13, first kind zone when slab 7 passes continuous passing furnace 11 about slab 7 described, curve 14 wherein shows that the thermal treatment in first kind zone 12 is the temperature trend of " soft " portion section of slab 7, and top curve 15 shows that the thermal treatment in the second class zone 13 is the temperature trend of " hardened " portion section of slab 7.
Visible a kind of method that is used to make the shaped component 1 that has the different tissue regions 2,3 of two ductility in Fig. 2, wherein forehearth 16 is extracted and passed to the strip material 4 that at first is made of the boron steel that is provided with aluminium/silicon coating out by volume 5.Strip material 4 even heating remain on this temperature levels to the temperature of 920 ℃ of about 830 ℃ to 950 ℃ preferably approximatelies and on the time of determining in forehearth 16.And then heat treated like this strip material 4 coilings 17.Heat treated strip material 4 is delivered to stamping machine 18 from rolling up 17, separates from strip material 4 at there slab 7.But stamping machine 18 can directly be cooled off and be delivered to then to strip material 4 also after being come out by forehearth 16.The slab 7 that is made of pretreated strip material 4 is transferred in two subregion stoves 19 and therefore is set in first subregion 20 of stove 19 on the temperature of 680 ℃ of about 550 ℃ to 700 ℃ preferably approximatelies in view of first kind zone 12, and is set on about 830 ℃ to 950 ℃ temperature in second subregion 21 of stove 19 simultaneously in view of second class zone 13.
Last slab 7 of heat-treating in such a way forms the shaped component 1 with two different tissue regions 2,3 in the heat pressure forming process of not describing in detail.
In Fig. 3, as seen, how to extract and directly to be delivered to stamping machine 18 out by volume 5 by the strip material 4 that the boron steel that is provided with aluminium/silicon coating constitutes.Slab 7 separates and guides to forehearth 16 then from strip material 4 in stamping machine 18, at there slab 7 even heating to the temperature of 920 ℃ of about 830 ℃ to 950 ℃ preferably approximatelies and the time t that is determining
2On remain on this temperature levels.
In first subregion 20, be set to as described about first kind zone 12 on the temperature of 680 ℃ of about 550 ℃ to 700 ℃ preferably approximatelies in two subregion stoves 19 that heat treated like this slab 7 has been mentioned above transferring to then and at this, and in second subregion 21 of stove 19, be set on about 830 ℃ to 950 ℃ temperature about the second class zone 13.
Temperature-time chart 23 is corresponding to temperature-time chart of Fig. 2.
Last heat treated like this slab 7 forms the shaped component 1 with two different tissue regions 2,3 in the thermoforming process.
Reference numerals list
1 shaped component
The tissue regions of 2 shaped components
The tissue regions of 3 shaped components
4 strip material
5 volumes
6 stamping machines
7 slabs
First subregion of 8 continuous passing furnaces
Second subregion of 9 continuous passing furnaces
The 3rd subregion of 10 continuous passing furnaces
11 continuous passing furnaces
The first kind zone of 12 slabs
The second class zone of 13 slabs
Curve below 14
Curve above 15
16 forehearths
17 volumes
18 stamping machines
19 pairs of subregion stoves
First subregion of 20 pairs of subregion stoves
Second subregion of 21 pairs of subregion stoves
22 curves below in chart 23
23 charts
24 curves above in chart 23
The t time
t
1Time
t
2Time
Claims (6)
1. be used for having at least two tissue regions (2 that ductility is different by slab (7) manufacturing from the isolating metal of strip material (4), the method of shaped component 3) (1), wherein slab (7) differently heats by the zone and is subjected to the thermoforming process then to be deformed into shaped component (1), it is characterized in that: in adopting the shaped component (1) that constitutes by the high-intensity boron steel that is provided with aluminium/silicon coating, have a plurality of temperature subregions (8 from the isolating slab of strip material (4) (7) that constitutes by such material, 9,10) at first be heated to about 830 ℃～950 ℃ temperature in the stove (11) equably and remain on this temperature levels on the time of determining (t) in first subregion (8), and then the first kind zone (12) of slab (7) is cooled on about 550 ℃～700 ℃ temperature in second subregion (9) of stove (11) downwards and time (the t that is determining
1) on remain on the temperature levels of this decline, and simultaneously the second class zone (13) of slab (7) in the 3rd subregion (10) of stove (11) at time (t
2) during remain on about 830 ℃～950 ℃ temperature levels, then slab (7) is deformed into shaped component (1) in back to back thermoforming process.
2. be used for having at least two tissue regions (2 that ductility is different by slab (7) manufacturing from the isolating metal of strip material (4), the method of shaped component 3) (1), wherein slab (7) differently heats by the zone and is subjected to the thermoforming process then to be deformed into shaped component (1), it is characterized in that: in adopting the shaped component (1) that constitutes by the high-intensity boron steel that is provided with aluminium/silicon coating, the strip material (4) that is made of such material is heated to about 830 ℃～950 ℃ temperature equably in by forehearth (16), on the time of determining, remain on this temperature levels and cooling then, then slab (7) separates from strip material (4), and each is transferred to be set in first subregion (20) of stove (19) on about 550 ℃～700 ℃ temperature and about the second class zone (13) two subregion stoves (19) and about first kind zone (12) from the isolating slab of strip material (4) (7) and is set on about 830 ℃～950 ℃ temperature in second subregion (21) of stove (19) simultaneously afterwards, and last slab (7) is deformed into shaped component (1) in the thermoforming process.
3. be used for having at least two tissue regions (2 that ductility is different by slab (7) manufacturing from the isolating metal of strip material (4), the method of shaped component 3) (1), wherein slab (7) differently heats by the zone and is subjected to the thermoforming process then to be deformed into shaped component (1), it is characterized in that: in adopting the shaped component (1) that constitutes by the high-intensity boron steel that is provided with aluminium/silicon coating, slab (7) separates from the strip material (4) that is made of such material, and and then each slab (7) is heated to about 830 ℃～950 ℃ temperature equably and remains on this temperature levels on the time of determining and cooling then in forehearth (16), then slab (7) is transferred in two subregion stoves (19) and about first kind zone (12) and is set on about 550 ℃～700 ℃ temperature in first subregion (20) of stove (19), while is set on about 830 ℃～950 ℃ temperature and on the time (t3) in second subregion (21) of stove (19) about the second class zone (13) and remains on this temperature levels, and the last slab of handling like this (7) is deformed into shaped component (1) in the thermoforming process.
4. by each described method of claim 1 to 3, it is characterized in that: in order to be cooled to about 550 ℃～700 ℃, touch with the cooling cramp joint in short time in the first kind zone (12) of slab (7).
5. by each described method of claim 1 to 3, it is characterized in that: in order to be cooled to about 550 ℃～700 ℃, jet with refrigerative gas in the first kind zone (12) of slab (7).
6. by the described method of claim 5, it is characterized in that: in order to be cooled to about 550 ℃～700 ℃, nitrogen injection is used in the first kind zone (12) of slab (7).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102007057855A DE102007057855B3 (en) | 2007-11-29 | 2007-11-29 | Production of moldings with structure zones of different ductility comprises heat treatment of aluminum-silicon coated high-tensile steel blank, followed by treating zones at different temperature |
| DE102007057855.7 | 2007-11-29 | ||
| PCT/DE2008/001799 WO2009067976A1 (en) | 2007-11-29 | 2008-11-03 | Method for producing a shaped component comprising at least two joining areas having different ductility |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101796202A true CN101796202A (en) | 2010-08-04 |
Family
ID=39777859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200880105421A Pending CN101796202A (en) | 2007-11-29 | 2008-11-03 | Method for producing a shaped component comprising at least two joining areas having different ductility |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20100300584A1 (en) |
| EP (1) | EP2227570B1 (en) |
| CN (1) | CN101796202A (en) |
| DE (1) | DE102007057855B3 (en) |
| ES (1) | ES2620804T3 (en) |
| RU (1) | RU2445381C1 (en) |
| WO (1) | WO2009067976A1 (en) |
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- 2008-11-03 CN CN200880105421A patent/CN101796202A/en active Pending
- 2008-11-03 WO PCT/DE2008/001799 patent/WO2009067976A1/en active Application Filing
- 2008-11-03 EP EP08854114.9A patent/EP2227570B1/en active Active
- 2008-11-03 RU RU2010126492/02A patent/RU2445381C1/en active
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| CN103534364A (en) * | 2011-03-10 | 2014-01-22 | 伊娃·施瓦兹 | Furnace system for the controlled heat treatment of sheet metal components |
| US9616488B2 (en) | 2011-09-16 | 2017-04-11 | Benteler Automobiltechnik Gmbh | Method for producing structural components and chassis components by hot forming, and heating station |
| CN103827325B (en) * | 2011-09-16 | 2016-01-20 | 本特勒尔汽车技术有限公司 | For passing through method and the heating station of thermoforming manufacturing structure component and chassis component |
| CN103827325A (en) * | 2011-09-16 | 2014-05-28 | 本特勒尔汽车技术有限公司 | Method for producing structural components and chassis components by hot forming, and heating station |
| CN105518177A (en) * | 2013-06-25 | 2016-04-20 | 施瓦兹有限公司 | Inward diffusion of aluminium-silicon into a steel sheet |
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| CN106795578A (en) * | 2014-10-02 | 2017-05-31 | 奥钢联钢铁有限责任公司 | For the method for cooling during rolling steel plate |
| US10086421B2 (en) | 2015-01-07 | 2018-10-02 | Thyssenkrupp Steel Europe Ag | Tool for hot forming a workpiece and methods for selectively hot forming certain regions of a workpiece |
| CN105750427A (en) * | 2015-01-07 | 2016-07-13 | 蒂森克虏伯钢铁欧洲股份公司 | Tool For Hot Forming Workpiece And Methods For Selectively Hot Forming Certain Regions Of Workpiece |
| CN105750427B (en) * | 2015-01-07 | 2019-01-15 | 蒂森克虏伯钢铁欧洲股份公司 | The method of the tool and regioselectivity underground heat shaping workpiece of thermoforming workpiece |
| CN105855380A (en) * | 2015-02-05 | 2016-08-17 | 本特勒尔汽车技术有限公司 | Two-blow heating and forming tool and method for producing hot-formed and press-hardened motor vehicle components |
| CN109072322A (en) * | 2016-02-25 | 2018-12-21 | 本特勒汽车有限公司 | The preparation method of motor vehicle assembly with the different region of at least two intensity |
| US11331710B2 (en) | 2016-02-25 | 2022-05-17 | Benteler Automobiltechnik Gmbh | Method for producing a motor vehicle component with at least two regions of different strengths |
| CN107552622A (en) * | 2016-06-30 | 2018-01-09 | 福特全球技术公司 | Heating furnace module and method for drop stamping vehicle part |
| CN111108221A (en) * | 2017-09-01 | 2020-05-05 | 施瓦兹有限责任公司 | Method for heating metal parts to a target temperature and corresponding roller hearth furnace |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102007057855B3 (en) | 2008-10-30 |
| WO2009067976A1 (en) | 2009-06-04 |
| RU2010126492A (en) | 2012-01-10 |
| EP2227570A1 (en) | 2010-09-15 |
| RU2445381C1 (en) | 2012-03-20 |
| US20100300584A1 (en) | 2010-12-02 |
| ES2620804T3 (en) | 2017-06-29 |
| EP2227570B1 (en) | 2017-01-25 |
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