WO2005007917A2 - Verfahren und vorrichtung zum abschrecken eines gussteils - Google Patents
Verfahren und vorrichtung zum abschrecken eines gussteils Download PDFInfo
- Publication number
- WO2005007917A2 WO2005007917A2 PCT/DE2004/001220 DE2004001220W WO2005007917A2 WO 2005007917 A2 WO2005007917 A2 WO 2005007917A2 DE 2004001220 W DE2004001220 W DE 2004001220W WO 2005007917 A2 WO2005007917 A2 WO 2005007917A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- casting
- quenching medium
- flow rate
- quenching
- quenched
- Prior art date
Links
Classifications
-
- 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
- C21D1/56—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering characterised by the quenching agents
- C21D1/613—Gases; Liquefied or solidified normally gaseous material
-
- 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
- C21D9/34—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tyres; for rims
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
- C22F1/043—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with silicon as the next major constituent
-
- 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
- C21D1/667—Quenching devices for spray quenching
Definitions
- the invention relates to a method for quenching a casting according to the preamble of claim 1.
- the invention relates to a method for heat treating a casting according to the preamble of patent claim 6.
- the invention further relates to a device for carrying out the method for quenching a casting.
- a method for quenching a casting of metal in which a cooling of the heated to 250 ° C to 400 ° C casting in still air. Deterrence of the casting is not provided.
- the object of the present invention is to specify a method for quenching a casting or a method for heat treating a casting and a device for carrying out the said methods such that a distortion-minimized casting is produced having improved mechanical properties adapted to the shape thereof.
- the invention has the features of claim 1.
- the particular advantage of the method according to claim 1 is that compared to the quenching by means of a liquid quenching medium, the delay of the casting can be significantly reduced. This results in a saving of material, an energy saving and a saving of chips that are incurred in the machining further processing. Furthermore, shorter cycle times result from the Absehreckungsvon invention, because a faster solidification of the crystal components occurs.
- the method according to the invention makes it possible to optimally adapt the strength values or hardness values to the requirements of the different segments of the casting.
- the cooling conditions are optimally adapted to the different wall thickness segments of the wheel.
- the deterrence is carried out by supplying room air of a predetermined flow rate, so that the production engineering effort can be kept relatively low.
- the inventive method according to claim 6 allows improved mechanical properties of the casting as well as a delay minimization. This is achieved by optimally coordinating the process steps “solution annealing”, “quenching” and “heat aging”.
- the device according to the invention has the features of patent claim 10.
- the particular advantage of the device according to the invention according to claim 10 is that by the controlled quenching by means of a gaseous quenching a targeted distribution of different
- Strength values or hardness values in the casting is made possible.
- the primary aim of the invention is not quenching as fast as possible, but a controlled quenching of the casting, in which a sliding transition takes place between segments of the casting with regard to the strength or hardness values.
- a slower cooling of the casting areas located higher away from the entrance of the quenching medium takes place
- the hub region has a lower hardness than a horn region of the rim, which has a smaller wall thickness and faces the passages of the inflowing quenching medium.
- the strength distribution runs continuously in radial direction tion of an inner spoke region of low strength to an outer spoke region of higher strength.
- this results in damping properties of the wheel, which are favorable for continuous load or extreme load of the wheel of a motor vehicle.
- the safety-relevant casting areas such as the horn or the rim base, have a maximum mechanical strength or hardness.
- the thicker and perpendicular to the rim hub or spoke area whose wall thickness is chosen to be much larger, may be less hard.
- the casting is mounted in a receptacle which has passages for entry of the gaseous quenching medium.
- a fan On the side facing away from the casting a fan is arranged, which sucks the quenching medium and presses in accordance with a predetermined flow rate through the passages in the recording.
- the fan is connected to a control circuit which adjusts the flow velocity of the quench medium depending on the ambient conditions.
- the flow rates can be adapted to the requirements of the quenching process.
- FIG. 1 is a front view of a wheel
- FIG. 2 shows a section through the wheel along the line II-II according to FIG. 1, which is used as a cast part in a superstructure. a device for deterring the casting is arranged and
- Figure 3 is a block diagram of a device for deterring the casting.
- the exemplary embodiment relates to the production of a wheel 1 according to FIG. 1.
- the wheel 1 is designed as a light metal wheel, preferably made of an aluminum alloy.
- the inventive method can also be used for the production of, for example, cylinder heads or crankcases.
- the light-alloy wheel 1 according to FIGS. 1 and 2 consists essentially of a rim 2, a hub region 3 and a plurality of spokes 4 extending radially from the hub region 3 to the outside.
- a die-cast part made of an aluminum alloy (aluminum-silicon-magnesium alloy, AlSiMg) is cast in a casting mold (not shown).
- the casting 1 is made by die casting. It can be made using a sand casting process in a sand mold or by a chill casting.
- the casting may be subjected to X-ray inspection to identify any unwanted holes.
- a solution annealing of the casting 1, in which the casting 1 is held for six hours to a temperature of about 535 ° C is carried out.
- the solution annealing may be carried out at a solution annealing temperature of between 500 ° C. depending on the shape of the casting 1 and 550 ° C.
- the solution annealing time may be in the range of four to eight hours.
- the quenching of the casting 1 by means of a gaseous quenching medium takes place.
- a gaseous quenching medium serves as a quenching medium, the room air, which is sucked by means of a blower 5 and passed at a predetermined flow rate in a receiving chamber 6, in which the casting 1 is arranged.
- the casting is positioned with a rear horn 7 of the rim 2 on a grid-shaped bottom 8.
- the bottom 8 has at a regular distance arranged passages 9 and slots through which the room air according to the direction of arrow 10 can flow into the receiving chamber 6.
- the flow rate of the room air can be in a range of 30 to 70 m / s.
- the casting 1 is cooled from 535 ° C to 150 ° C within a few minutes, for example within two to three minutes.
- the initial temperature of the casting 1 may be in a range of 490 ° C to 540 ° C.
- the wall thickness d x of the rim 2 is substantially smaller than the wall thickness d 2 of the hub portion 3 and the spokes 4.
- the casting 1 is due to its own weight on the grid-shaped bottom 8. Due to the arrangement of the rim 2, which extends substantially parallel to the air flow direction 10 and which is arranged on a side facing the passages 9 of the die-cast part 1, and the fact that the wall thickness d of the rim 2 substantially is less than the wall thickness d 2 of the remaining part of the die casting 1, a faster cooling of the rim portion 2 than that of the hub / spoke portion 3, 4. The temperature t x in the rim 2 during the Absehreckvorganges is less than the temperature t 2 in the hub / spoke area 3, 4.
- the rim 2 serves as a kind of cooling rib for the cooling of the hub / spoke area 3, 4 and thus favors a temperature compensation, wherein a sliding transition of the strength or hardness values of the rear horn 7 or from the rim base 2 in the direction of the hub portion 3 completes.
- the rim well may have a hardness value that is 10% to 20% higher than the hardness value in the region of the hub 3 of the casting 1. While a high strength value is formed in the region of the rim 2, the strength value in the region of the hub is 3 much lower, so that in an advantageous manner, the damping properties of the light metal wheel 1 when used for example in a motor vehicle can be significantly improved. Dynamic mechanical stresses can be much better absorbed without damaging the wheel 1 occurs.
- the casting 1 is subjected to a heat aging, which may have a duration of 30 minutes to 10 hours.
- the heat aging time for the described casting 1 may be 5 hours while maintaining the temperature in a range between 155 ° C and 200 ° C.
- the casting 1 is then fed to a machining operation.
- the fan 5 is associated with a control device ST, which adjusts the flow rate of the introduced through the fan 5 in the receiving chamber 6 room air flow or regulates.
- the control device ST has electronic control means, such that a fan of the blower 5, for example, at a room temperature of 20 ° C generates a flow velocity of 40 m / s.
- the control circuit 11 causes an increase in the rotational speed of the fan 5, so that, for example, a flow velocity of 50 m / s is achieved.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ATGM67/2011U AT12609U1 (de) | 2003-07-04 | 2004-06-16 | Verfahren und vorrichtung zum abschrecken eines gussteils |
PL04738672T PL1651788T5 (pl) | 2003-07-04 | 2004-06-16 | Sposób hartowania odlewu |
EP04738672.7A EP1651788B9 (de) | 2003-07-04 | 2004-06-16 | Verfahren zum Abschrecken eines Gussteils |
DE502004007161T DE502004007161D1 (de) | 2003-07-04 | 2004-06-16 | Verfahren zum Abschrecken eines Gussteils |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10330400.2 | 2003-07-04 | ||
DE10330400A DE10330400A1 (de) | 2003-07-04 | 2003-07-04 | Verfahren und Vorrichtung zum Abschrecken eines Gussteils |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2005007917A2 true WO2005007917A2 (de) | 2005-01-27 |
WO2005007917A3 WO2005007917A3 (de) | 2005-03-24 |
Family
ID=33521369
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2004/001220 WO2005007917A2 (de) | 2003-07-04 | 2004-06-16 | Verfahren und vorrichtung zum abschrecken eines gussteils |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1651788B9 (de) |
AT (2) | ATE395443T1 (de) |
DE (3) | DE20320840U1 (de) |
PL (1) | PL1651788T5 (de) |
WO (1) | WO2005007917A2 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103889746A (zh) * | 2011-10-11 | 2014-06-25 | Ksm铸造集团有限公司 | 铸件 |
EP3725900A1 (de) | 2019-04-17 | 2020-10-21 | Mubea Performance Wheels GmbH | Bauteil und verfahren und vorrichtung zum abschrecken eines bauteils |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008024524A1 (de) * | 2008-05-21 | 2009-11-26 | Bdw Technologies Gmbh | Verfahren und Anlage zur Herstellung eines Gussbauteils |
DE102011052514B4 (de) * | 2011-08-09 | 2018-04-19 | Ks Huayu Alutech Gmbh | Verfahren zur Vergütung eines durch Druckgießen hergestellten Zylinderkurbelgehäuses |
DE102020100699A1 (de) * | 2020-01-14 | 2021-07-15 | Audi Aktiengesellschaft | Verfahren zum Herstellen einer Kraftwagenfelge aus Aluminium oder einer Aluminiumlegierung für ein Rad eines Kraftfahrzeugs sowie entsprechende Kraftwagenfelge |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DD82952A (de) * | ||||
US4629517A (en) * | 1982-12-27 | 1986-12-16 | Aluminum Company Of America | High strength and corrosion resistant aluminum article and method |
EP0425461A1 (de) * | 1989-10-27 | 1991-05-02 | Sandvik Special Metals Corp. | Kontinuierliche Lösungswärmebehandlung von ausscheidungshärtbaren Legierungen |
US6074599A (en) * | 1998-07-20 | 2000-06-13 | Ghafari Associates, Inc. | Air quenching chamber |
EP1041165A1 (de) * | 1999-04-02 | 2000-10-04 | Kabushiki Kaisha Kobe Seiko Sho | Stossabsorbierendes Material |
DE10106640A1 (de) * | 2000-02-11 | 2001-09-20 | Ford Global Tech Dearborn | Beschleunigte Wärmebehandlung für Aluminium-Gusslegierungen |
DE10235529A1 (de) * | 2002-08-03 | 2004-02-12 | Daimlerchrysler Ag | Gussteil |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3443226C1 (de) * | 1984-11-27 | 1986-03-13 | Årdal og Sunndal Verk A/S, Oslo | Verfahren und Vorrichtung zur Verbesserung der dynamischen Festigkeit von Radscheiben von Fahrzeugraedern aus aushaertbaren Aluminiumlegierungen |
DE3724928A1 (de) * | 1987-07-28 | 1989-02-16 | Bayerische Motoren Werke Ag | Herstell-verfahren fuer leichtmetallguss-bauteile, insbesondere leichtmetallguss-raeder fuer personenkraftwagen |
JPH0238545A (ja) * | 1988-07-27 | 1990-02-07 | Asahi Tec Corp | 車両用ホイールの熱処理法 |
EP0813922B1 (de) * | 1989-03-07 | 2001-06-20 | Aluminum Company Of America | Verfahren und Vorrichtung zum Vakuumdruckgiessen |
DE4305091C1 (de) * | 1993-02-19 | 1994-03-10 | Fuchs Otto Fa | Verfahren zur Herstellung eines einteiligen Leichtmetallrades aus einem Aluminium-Knetwerkstoff |
JPH071111A (ja) * | 1993-06-16 | 1995-01-06 | Kosei Aruminiyuumu Kogyo Kk | アルミニウム合金製車輪の製造装置 |
US5662750A (en) * | 1995-05-30 | 1997-09-02 | Kaiser Aluminum & Chemical Corporation | Method of manufacturing aluminum articles having improved bake hardenability |
US5810949A (en) * | 1995-06-07 | 1998-09-22 | Aluminum Company Of America | Method for treating an aluminum alloy product to improve formability and surface finish characteristics |
DE19524176C1 (de) * | 1995-07-03 | 1996-09-26 | Daimler Benz Ag | Verfahren zum Zwischenabschrecken von aus einem Lösungs-Glühofen kommenden Leichtmetall-Gußstücken |
DE19925666C1 (de) † | 1999-06-04 | 2000-09-28 | Vaw Motor Gmbh | Zylinderkopf- und Motorblockgußteil |
DE10043562C2 (de) * | 1999-09-16 | 2003-09-18 | Honsel Profilprodukte Gmbh | Verfahren zur Wärmebehandlung von Strangpreßprofilen |
JP2003510463A (ja) * | 1999-09-24 | 2003-03-18 | ホンゼル グス ゲゼルシャフト ミット ベシュレンクテル ハフツング | 使用すべきアルミニュウム合金からなる構造鋳造部品の熱処理方法 |
DE10002021C2 (de) * | 1999-09-24 | 2002-10-17 | Honsel Guss Gmbh | Verfahren zur Wärmebehandlung von Strukturgußteilen aus einer dafür zu verwendenden Aluminiumlegierung |
DE10222098B4 (de) * | 2002-05-17 | 2011-01-13 | Bayerische Motoren Werke Aktiengesellschaft | Verfahren zur Wärmebehandlung von einem Bauteil aus einer härtbaren Leichtmetalllegierung |
-
2003
- 2003-07-04 DE DE20320840U patent/DE20320840U1/de not_active Expired - Lifetime
- 2003-07-04 DE DE10330400A patent/DE10330400A1/de not_active Withdrawn
-
2004
- 2004-06-16 AT AT04738672T patent/ATE395443T1/de active
- 2004-06-16 WO PCT/DE2004/001220 patent/WO2005007917A2/de active IP Right Grant
- 2004-06-16 PL PL04738672T patent/PL1651788T5/pl unknown
- 2004-06-16 EP EP04738672.7A patent/EP1651788B9/de not_active Expired - Lifetime
- 2004-06-16 AT ATGM67/2011U patent/AT12609U1/de not_active IP Right Cessation
- 2004-06-16 DE DE502004007161T patent/DE502004007161D1/de not_active Expired - Lifetime
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DD82952A (de) * | ||||
US4629517A (en) * | 1982-12-27 | 1986-12-16 | Aluminum Company Of America | High strength and corrosion resistant aluminum article and method |
EP0425461A1 (de) * | 1989-10-27 | 1991-05-02 | Sandvik Special Metals Corp. | Kontinuierliche Lösungswärmebehandlung von ausscheidungshärtbaren Legierungen |
US6074599A (en) * | 1998-07-20 | 2000-06-13 | Ghafari Associates, Inc. | Air quenching chamber |
EP1041165A1 (de) * | 1999-04-02 | 2000-10-04 | Kabushiki Kaisha Kobe Seiko Sho | Stossabsorbierendes Material |
US20030008165A1 (en) * | 1999-04-02 | 2003-01-09 | Kabushi Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | Shock absorbing material |
DE10106640A1 (de) * | 2000-02-11 | 2001-09-20 | Ford Global Tech Dearborn | Beschleunigte Wärmebehandlung für Aluminium-Gusslegierungen |
DE10235529A1 (de) * | 2002-08-03 | 2004-02-12 | Daimlerchrysler Ag | Gussteil |
Non-Patent Citations (1)
Title |
---|
See also references of EP1651788A2 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103889746A (zh) * | 2011-10-11 | 2014-06-25 | Ksm铸造集团有限公司 | 铸件 |
EP3725900A1 (de) | 2019-04-17 | 2020-10-21 | Mubea Performance Wheels GmbH | Bauteil und verfahren und vorrichtung zum abschrecken eines bauteils |
WO2020212578A1 (de) | 2019-04-17 | 2020-10-22 | Mubea Performance Wheels Gmbh | Bauteil und verfahren und vorrichtung zum abschrecken eines bauteils |
Also Published As
Publication number | Publication date |
---|---|
ATE395443T1 (de) | 2008-05-15 |
PL1651788T5 (pl) | 2014-06-30 |
WO2005007917A3 (de) | 2005-03-24 |
EP1651788B2 (de) | 2014-03-12 |
AT12609U1 (de) | 2012-08-15 |
DE10330400A1 (de) | 2005-01-20 |
EP1651788A2 (de) | 2006-05-03 |
DE502004007161D1 (de) | 2008-06-26 |
DE20320840U1 (de) | 2005-03-31 |
PL1651788T3 (pl) | 2008-10-31 |
EP1651788B9 (de) | 2014-06-11 |
EP1651788B1 (de) | 2008-05-14 |
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