EP0205417B1 - Stahl, insbesondere für Werkzeuge zur Warmformgebung - Google Patents
Stahl, insbesondere für Werkzeuge zur Warmformgebung Download PDFInfo
- Publication number
- EP0205417B1 EP0205417B1 EP19860890149 EP86890149A EP0205417B1 EP 0205417 B1 EP0205417 B1 EP 0205417B1 EP 19860890149 EP19860890149 EP 19860890149 EP 86890149 A EP86890149 A EP 86890149A EP 0205417 B1 EP0205417 B1 EP 0205417B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- steel
- hot
- bis
- working tools
- tools
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- 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
- C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium with vanadium
Definitions
- the invention relates to a steel, in particular for tools for the hot forming of metals and alloys.
- Hot working steels are used for the production of forging dies, dies, patrices, press dies and the like. It is essential for hot working steels of this type that they also have a corresponding hardness even at higher working temperatures, for example 650 ° C., and this hardness can be maintained for a long time even when kept at this temperature. Furthermore, it is of particular interest that the hardness of the tool is not only given on the surface of the tool, but also that the hardness is approximately the same in the entire cross section. The creep behavior at elevated temperatures should also be low so that long service lives of such tools can be achieved. Increasing the tool life not only means lower unit consumption per unit of time, but also makes it possible to minimize set-up times caused by tool replacement.
- DE-A1 3 041 565 discloses a steel with the following composition in% by weight:
- the object of the present invention is to create a steel, in particular for tools for the hot forming of metals, which ensures a longer service life even at higher tool temperatures than before. It is therefore essential that the combination of properties of tempering resistance is optimized even at higher temperatures, elongation at break and constriction at higher temperatures and at least creep at higher temperatures.
- the time-break elongation in% and the time-break constriction in% were also tested on three samples in each case in accordance with DIN 50145, and the corresponding values can be found in Table 3.
- the curing of the samples was - as mentioned above - in which the experiments were carried out at 750 ° C.
- the hardness profile in the cross-section of the samples (25 x 25 mm and height 20 mm) is determined at room temperature, whereby the hardness on the surface determines 25%, 50% and 75% below it and on the opposite surface (100%) and reproduced in Table 4.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Steel (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Heat Treatment Of Articles (AREA)
- Forging (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT1562/85 | 1985-05-23 | ||
AT156285A AT388943B (de) | 1985-05-23 | 1985-05-23 | Stahl, insbesondere fuer werkzeuge zur warmformgebung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0205417A1 EP0205417A1 (de) | 1986-12-17 |
EP0205417B1 true EP0205417B1 (de) | 1989-11-29 |
Family
ID=3516090
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19860890149 Expired EP0205417B1 (de) | 1985-05-23 | 1986-05-21 | Stahl, insbesondere für Werkzeuge zur Warmformgebung |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0205417B1 (es) |
JP (1) | JPS61272353A (es) |
AT (1) | AT388943B (es) |
DE (1) | DE3667181D1 (es) |
ES (1) | ES8704213A1 (es) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2881869B2 (ja) * | 1989-12-06 | 1999-04-12 | 大同特殊鋼株式会社 | 溶接性にすぐれたプラスチック成形金型用鋼 |
EP2476772A1 (en) * | 2011-01-13 | 2012-07-18 | Rovalma, S.A. | High thermal diffusivity and high wear resistance tool steel |
CA3009437A1 (en) * | 2015-12-24 | 2017-06-29 | Rovalma, S.A. | Long durability high performance steel for structural, machine and tooling applications |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR788889A (fr) * | 1934-11-27 | 1935-10-18 | Climax Molybdenum Co | Perfectionnements aux aciers spéciaux au molybdène |
GB830775A (en) * | 1957-11-25 | 1960-03-23 | Gen Electric | Improvements in forming dies and alloy therefor |
GB1220620A (en) * | 1967-05-09 | 1971-01-27 | Nippon Steel Corp | Wearing member having a hard surfacing layer high in wear-resistance and heat crack-proofness |
SE426177B (sv) * | 1979-12-03 | 1982-12-13 | Uddeholms Ab | Varmarbetsstal |
-
1985
- 1985-05-23 AT AT156285A patent/AT388943B/de not_active IP Right Cessation
-
1986
- 1986-05-13 JP JP10783486A patent/JPS61272353A/ja active Pending
- 1986-05-21 EP EP19860890149 patent/EP0205417B1/de not_active Expired
- 1986-05-21 DE DE8686890149T patent/DE3667181D1/de not_active Expired - Lifetime
- 1986-05-22 ES ES555210A patent/ES8704213A1/es not_active Expired
Also Published As
Publication number | Publication date |
---|---|
EP0205417A1 (de) | 1986-12-17 |
JPS61272353A (ja) | 1986-12-02 |
ES555210A0 (es) | 1987-03-16 |
DE3667181D1 (de) | 1990-01-04 |
AT388943B (de) | 1989-09-25 |
ES8704213A1 (es) | 1987-03-16 |
ATA156285A (de) | 1989-02-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE3650515T2 (de) | Hochfester hitzebeständiger ferritischer Stahl mit hohem Chromgehalt | |
DE69003202T2 (de) | Hochfeste, hitzebeständige, niedrig legierte Stähle. | |
DE69800106T2 (de) | Korrosionsbeständige, hochfeste Kupferlegierung mit guter Stanzbarkeit | |
DE3041565C2 (es) | ||
DE3310693C2 (es) | ||
DE69505603T2 (de) | Bauteil aus hitzebeständigem austenitischem Stahl mit ausgezeichneter Festigkeit bei hohen Temperaturen | |
AT410447B (de) | Warmarbeitsstahlgegenstand | |
DE2447137B2 (de) | Gegen gruebchenkorrosion bestaendige stahllegierung | |
DE2263576A1 (de) | Verschleissfeste schnellarbeitsstaehle mit guttr schleifbarkeit und hoher zaehigkeit | |
EP1249511A1 (de) | PM-Schnellarbeitsstahl mit hoher Warmfestigkeit | |
DE2800444C2 (de) | Verwendung eines Cr-Mo-Stahls | |
DE2613255C2 (de) | Verwendung einer Eisen-Molybdän-Nickel-Sinterlegierung mit Phosphorzusatz zur Herstellung hochfester Werkstücke | |
DE1298291B (de) | Verwendung einer martensitaushaertbaren Nickel-Kobalt-Molybdaen-Stahllegierung fuer Gegenstaende mit einer Mindestzugfestigkeit von 265 kg/mm | |
CH646199A5 (de) | Unlegierte und niedriglegierte, bainitgehaertete, umwandlungstraege stahllegierungen niedrigen martensitpunkts. | |
EP0205417B1 (de) | Stahl, insbesondere für Werkzeuge zur Warmformgebung | |
DE69907896T2 (de) | Kaltarbeitsstahl | |
EP0119501B1 (de) | Verwendung einer aushärtbaren Kupfer-Nickel-Mangan-Legierung als Werkstoff zur Herstellung von Brillenteilen | |
EP0939140B1 (de) | Eisenbasislegierung zur Verwendung bei erhöhten Temperaturen | |
DE1217076B (de) | Martensitaushaertbare Stahllegierung | |
EP0136998A1 (de) | Nickel-Knetlegierung und Verfahren zur Wärmebehandlung derselben | |
DE69907358T2 (de) | Zusammensetzung von werkzeugstahl | |
EP0130177B1 (de) | Sinterlegierung auf Eisenbasis | |
EP0632139A1 (de) | Verwendung eines Warmarbeitsstahls | |
DE60216304T2 (de) | Austenitischer rostfreier CrNiMnCu Stahl mit niedrigem Nickelgehalt | |
EP0733719A1 (de) | Eisenbasislegierung zur Verwendung bei erhöhter Temperatur |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): BE CH DE FR GB IT LI LU NL |
|
17P | Request for examination filed |
Effective date: 19870520 |
|
17Q | First examination report despatched |
Effective date: 19880624 |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: BOEHLER GESELLSCHAFT M.B.H. |
|
ITF | It: translation for a ep patent filed |
Owner name: DE DOMINICIS & MAYER S.R.L. |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): BE CH DE FR GB IT LI LU NL |
|
REF | Corresponds to: |
Ref document number: 3667181 Country of ref document: DE Date of ref document: 19900104 |
|
ET | Fr: translation filed | ||
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) | ||
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
26N | No opposition filed | ||
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 19920507 Year of fee payment: 7 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 19920516 Year of fee payment: 7 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 19920518 Year of fee payment: 7 Ref country code: BE Payment date: 19920518 Year of fee payment: 7 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 19920520 Year of fee payment: 7 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: LU Payment date: 19920527 Year of fee payment: 7 |
|
ITTA | It: last paid annual fee | ||
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 19920531 Year of fee payment: 7 |
|
EPTA | Lu: last paid annual fee | ||
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19930521 Ref country code: GB Effective date: 19930521 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Effective date: 19930531 Ref country code: CH Effective date: 19930531 Ref country code: BE Effective date: 19930531 |
|
BERE | Be: lapsed |
Owner name: BOHLER G.M.B.H. Effective date: 19930531 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Effective date: 19931201 |
|
NLV4 | Nl: lapsed or anulled due to non-payment of the annual fee | ||
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 19930521 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Effective date: 19940131 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Effective date: 19940201 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED. Effective date: 20050521 |