WO1997045565A1 - Relaxationsfeste stahlfeder - Google Patents
Relaxationsfeste stahlfeder Download PDFInfo
- Publication number
- WO1997045565A1 WO1997045565A1 PCT/DE1996/000935 DE9600935W WO9745565A1 WO 1997045565 A1 WO1997045565 A1 WO 1997045565A1 DE 9600935 W DE9600935 W DE 9600935W WO 9745565 A1 WO9745565 A1 WO 9745565A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- relaxation
- percent
- weight
- resistant steel
- steel spring
- 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/02—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for springs
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
-
- 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
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/06—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires
Definitions
- the invention relates to a steel spring which has a good resistance to relaxation at relatively high working temperatures.
- Feathers made from patented drawn spring steel wires consisting of unalloyed carbon steels are known. Such springs are essentially free of scale and residual dirt particles, but can only be used to a limited extent for operating temperatures of over 80 ° C. They are used with greatly reduced working voltages, the compensation of which can only take place via a higher insert mass of the spring, which is known to bring considerable disadvantages for economic as well as for design reasons. With regard to the relaxation behavior at higher operating temperatures, springs made from oil-quenched, unalloyed spring steel and valve spring wires have the same disadvantages.
- the surface is contaminated with scale or remnants of other residues as a result of the oil finish, the spring function can loosen and, in sensitive work areas such as automatic transmissions and fuel injection systems in motor vehicles, can lead to considerable malfunctions or to the complete failure of such units.
- the object of the invention is to create a high-strength wire spring which is resistant to relaxation at elevated operating temperatures and has a surface free of scale or residual dirt and relatively low material costs.
- the object is achieved in that the reiaxation-resistant steel spring with high strength comprises the following features.
- a steel wire with the composition 0.45 - 0, $ 5 weight percent carbon, 0.2 - 1, 60 weight percent silicon, 0.3 - 1.50 weight percent manganese, 0.4 - 1, 20 weight percent chromium and the rest iron and inevitable Additives are austenitized and then isothermally heat-treated in the temperature range between 450 and 650 ° C, then pulled to a tensile strength of 1600 - 2300 N / mm 2 with a constriction of at least 40%.
- This wire is cold-formed into a spring, which is subsequently annealed in the temperature range of 200-350 ° C. with low stress.
- the steel has vanadium additions of 0.05-0.30 percent by weight, that the steel contains other additions such as 0.005-0.05 percent by weight titanium, 0.01-0.2 percent by weight niobium and / or tantalum as well 0.05-0.5% by weight of molybdenum and that the elements chromium and silicon are completely or partially replaced by 0.003-0.01% by weight of boron.
- the spring has a helical shape and the mean spring diameter is equal to or less than four times the wire diameter to the purpose of increasing the durability takes place a shot blasting and is advanced by means of elastic deformation at either room temperature and / or at temperatures up to 400 C ⁇ .
- Example 1 The invention is explained in more detail below using two exemplary embodiments, without being limited thereto.
- Example 1 The invention is explained in more detail below using two exemplary embodiments, without being limited thereto.
- Example 1
- a relaxation-proof and heat-resistant tension spring with • the following dimensions:
- L2 570 mm 85 is produced from a rolled steel with 8 mm 0 and the following composition:
- This rolled steel is austenitized at 900 ° C., converted isothermally at 95 ° C. and then cold drawn to 3.6 mm. A strength Rm of 1900 N / mm 2 is achieved.
- This wire is fully automatically formed into a tension spring The above-mentioned dimensions are reshaped and then stress relieved for one hour at 300 ° C. Loss of relaxation after testing for L2 at 145 ° C. 100 one hour: 4.8%
- Another example relates to the manufacture of a helical compression spring. From a rolled steel 5.5 mm 0 with a composition as in Example 1, an analog heat and cold drawing treatment is carried out at the tension spring and a compression spring for a fuel injection pump with the following spring data is generated: Wire diameter 1, 4 mm outside diameter 7.3 mm
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Springs (AREA)
- Heat Treatment Of Articles (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU58108/96A AU5810896A (en) | 1996-05-29 | 1996-05-29 | Relaxation-resistant steel spring |
DE59607551T DE59607551D1 (de) | 1996-05-29 | 1996-05-29 | Relaxationsfeste stahlfeder |
EP96919601A EP0906453B1 (de) | 1996-05-29 | 1996-05-29 | Relaxationsfeste stahlfeder |
AT96919601T ATE204612T1 (de) | 1996-05-29 | 1996-05-29 | Relaxationsfeste stahlfeder |
CA002256384A CA2256384A1 (en) | 1996-05-29 | 1996-05-29 | Relaxation-resistant steel spring |
PCT/DE1996/000935 WO1997045565A1 (de) | 1996-05-29 | 1996-05-29 | Relaxationsfeste stahlfeder |
BR9612648A BR9612648A (pt) | 1996-05-29 | 1996-05-29 | Mola de aço resistente à redução de tensão |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/DE1996/000935 WO1997045565A1 (de) | 1996-05-29 | 1996-05-29 | Relaxationsfeste stahlfeder |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997045565A1 true WO1997045565A1 (de) | 1997-12-04 |
Family
ID=6918350
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1996/000935 WO1997045565A1 (de) | 1996-05-29 | 1996-05-29 | Relaxationsfeste stahlfeder |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0906453B1 (de) |
AT (1) | ATE204612T1 (de) |
AU (1) | AU5810896A (de) |
CA (1) | CA2256384A1 (de) |
DE (1) | DE59607551D1 (de) |
WO (1) | WO1997045565A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107557671A (zh) * | 2017-10-26 | 2018-01-09 | 山东汽车弹簧厂淄博有限公司 | 微合金化弹簧钢及其制备方法 |
CN107587079A (zh) * | 2017-10-26 | 2018-01-16 | 山东汽车弹簧厂淄博有限公司 | 含氮微合金化弹簧钢及其制备方法 |
WO2018183499A1 (en) | 2017-03-28 | 2018-10-04 | National Oilwell DHT, L.P. | Valves for actuating downhole shock tools in connection with concentric drive systems |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109161629A (zh) * | 2018-08-16 | 2019-01-08 | 敬业钢铁有限公司 | 一种弹簧钢的lf精炼方法 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2364974A1 (fr) * | 1976-09-20 | 1978-04-14 | Garphytte Bruk Ab | Application d'un acier faiblement allie a la fabrication de fil pour ressort de soupape |
JPS5713148A (en) * | 1980-06-26 | 1982-01-23 | Kobe Steel Ltd | Steel wire for suspension spring |
EP0265273A2 (de) * | 1986-10-24 | 1988-04-27 | Daido Tokushuko Kabushiki Kaisha | Hochfester Federstahl |
GB2210299A (en) * | 1987-09-25 | 1989-06-07 | Nissan Motor | High strength spring |
JPH0257637A (ja) * | 1988-08-23 | 1990-02-27 | Nippon Steel Corp | 高疲労強度ばねの製造方法及びそれに用いるばね用鋼線 |
EP0368638A1 (de) * | 1988-11-08 | 1990-05-16 | Sumitomo Electric Industries, Ltd. | Verfahren zur Herstellung einer hochfesten Schraubenfeder |
JPH02240240A (ja) * | 1989-03-10 | 1990-09-25 | Aisin Seiki Co Ltd | 自動車用クラッチのダイヤフラムスプリング |
-
1996
- 1996-05-29 WO PCT/DE1996/000935 patent/WO1997045565A1/de active IP Right Grant
- 1996-05-29 AU AU58108/96A patent/AU5810896A/en not_active Abandoned
- 1996-05-29 EP EP96919601A patent/EP0906453B1/de not_active Expired - Lifetime
- 1996-05-29 AT AT96919601T patent/ATE204612T1/de not_active IP Right Cessation
- 1996-05-29 CA CA002256384A patent/CA2256384A1/en not_active Abandoned
- 1996-05-29 DE DE59607551T patent/DE59607551D1/de not_active Expired - Lifetime
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2364974A1 (fr) * | 1976-09-20 | 1978-04-14 | Garphytte Bruk Ab | Application d'un acier faiblement allie a la fabrication de fil pour ressort de soupape |
JPS5713148A (en) * | 1980-06-26 | 1982-01-23 | Kobe Steel Ltd | Steel wire for suspension spring |
EP0265273A2 (de) * | 1986-10-24 | 1988-04-27 | Daido Tokushuko Kabushiki Kaisha | Hochfester Federstahl |
GB2210299A (en) * | 1987-09-25 | 1989-06-07 | Nissan Motor | High strength spring |
JPH0257637A (ja) * | 1988-08-23 | 1990-02-27 | Nippon Steel Corp | 高疲労強度ばねの製造方法及びそれに用いるばね用鋼線 |
EP0368638A1 (de) * | 1988-11-08 | 1990-05-16 | Sumitomo Electric Industries, Ltd. | Verfahren zur Herstellung einer hochfesten Schraubenfeder |
JPH02240240A (ja) * | 1989-03-10 | 1990-09-25 | Aisin Seiki Co Ltd | 自動車用クラッチのダイヤフラムスプリング |
Non-Patent Citations (3)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 14, no. 232 (C - 719) 17 May 1990 (1990-05-17) * |
PATENT ABSTRACTS OF JAPAN vol. 14, no. 559 (C - )<787> 12 December 1990 (1990-12-12) * |
PATENT ABSTRACTS OF JAPAN vol. 6, no. 078 (C - 102) 15 May 1982 (1982-05-15) * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018183499A1 (en) | 2017-03-28 | 2018-10-04 | National Oilwell DHT, L.P. | Valves for actuating downhole shock tools in connection with concentric drive systems |
CN107557671A (zh) * | 2017-10-26 | 2018-01-09 | 山东汽车弹簧厂淄博有限公司 | 微合金化弹簧钢及其制备方法 |
CN107587079A (zh) * | 2017-10-26 | 2018-01-16 | 山东汽车弹簧厂淄博有限公司 | 含氮微合金化弹簧钢及其制备方法 |
CN107587079B (zh) * | 2017-10-26 | 2019-05-14 | 山东汽车弹簧厂淄博有限公司 | 含氮微合金化弹簧钢及其制备方法 |
CN107557671B (zh) * | 2017-10-26 | 2019-05-14 | 山东汽车弹簧厂淄博有限公司 | 微合金化弹簧钢及其制备方法 |
Also Published As
Publication number | Publication date |
---|---|
DE59607551D1 (de) | 2001-09-27 |
ATE204612T1 (de) | 2001-09-15 |
AU5810896A (en) | 1998-01-05 |
EP0906453A1 (de) | 1999-04-07 |
CA2256384A1 (en) | 1997-12-04 |
EP0906453B1 (de) | 2001-08-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE60015728T2 (de) | Wärmebeständiger legierungsdraht | |
EP0753595B1 (de) | Rohre für die Herstellung von Stabilisatoren und Herstellung von Stabilisatoren aus solchen Rohren | |
US5286312A (en) | High-strength spring steel | |
DE60307076T2 (de) | Stahldraht für hartgezogene feder mit hervorragender dauerfestigkeit und senkungsbeständigkeit und hartgezogene feder | |
DE60020263T2 (de) | Verwendung eines ausscheidungsgehärteten martensitischen edelstahls | |
DE19908407B4 (de) | Hochfeste Ventilfeder und Verfahren zu ihrer Herstellung | |
DE19947393A1 (de) | Stahldraht für hochfeste Federn und Verfahren zu seiner Herstellung | |
DE19983148B3 (de) | Federoberflächenbehandlungsverfahren | |
DE19852734B4 (de) | Feder mit verbesserter Korrosionsermüdungsbeständigkeit | |
DE3124977A1 (de) | "federstahl fuer fahrzeuge" | |
DE19756354A1 (de) | Schaufel und Verfahren zur Herstellung der Schaufel | |
DE2427038A1 (de) | Nichtrostender stahl und verfahren zu seiner herstellung | |
DE2741930C2 (de) | Ventilfederdraht aus niedriglegiertem Stahl | |
WO1997045565A1 (de) | Relaxationsfeste stahlfeder | |
EP2732060B1 (de) | Härtbarer stahl für hebe-, anschlag-, spann- und/oder zurrmittel sowie verbindungselemente, bauelement der hebe-, anschlag-, spann- und/oder zurrtechnik, verbindungselement sowie verfahren zu deren herstellung | |
EP1036851B1 (de) | Stahldraht- und feder mit hoher dauerfestigkeit und verfahren zu deren herstellung | |
EP0303041A2 (de) | Hartgezogener Ölvergüteter Stahldraht mit vorgeformtem Durchschnitt und Verfahren zu dessen Herstellung | |
DE4440729C2 (de) | Relaxationsfeste Stahlfeder | |
DE3702634A1 (de) | Stahlstift fuer ein befestigungsmittel und verfahren zu dessen herstellung | |
DE102014214592A1 (de) | Schraubenfeder aus Federstahl und Verfahren zur Herstellung einer Schraubenfeder | |
WO2002063050A1 (de) | Verfahren zur herstellung einer kette | |
WO1997045563A1 (de) | Gleisoberbauteil sowie verfahren zur herstellung eines solchen | |
JP2510230B2 (ja) | 高温へたり性の優れた自動車用懸架ばねの製造方法 | |
DE602006000331T2 (de) | Verstärkungsverfahren durch Karbonitrierung und Umwandlung von Austenit in Martensit in zwei Schritten | |
EP1664357B1 (de) | verwendung eines stahls zur herstellung von ketten, verfahren zur herstellung einer kette und damit hergestellte kette |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AU BG BR CA CN CZ HU JP KP KR MX NO PL RU SK TR UA US VN |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE |
|
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
ENP | Entry into the national phase |
Ref document number: 2256384 Country of ref document: CA Ref country code: CA Ref document number: 2256384 Kind code of ref document: A Format of ref document f/p: F |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1996919601 Country of ref document: EP |
|
NENP | Non-entry into the national phase |
Ref country code: JP Ref document number: 97541341 Format of ref document f/p: F |
|
WWP | Wipo information: published in national office |
Ref document number: 1996919601 Country of ref document: EP |
|
WWG | Wipo information: grant in national office |
Ref document number: 1996919601 Country of ref document: EP |