EP0721995A2 - Utilisation d'un alliage ferreux pour la fabrication de formes pour la transformation des matières plastiques - Google Patents

Utilisation d'un alliage ferreux pour la fabrication de formes pour la transformation des matières plastiques Download PDF

Info

Publication number: EP0721995A2
Authority: EP; European Patent Office
Prior art keywords: bis; weight; iron; based alloy; vorzugsweise
Prior art date: 1995-01-16
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.): Granted

Application number

EP96890005A

Other languages

German (de)

English (en)

Other versions

EP0721995B1 (fr

EP0721995A3 (fr

Inventor

Gerhard Dr. Hackl

Manfred Ing. Gstettner

Karl Dipl.-Ing. Leban

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Voestalpine Boehler Edelstahl GmbH

Boehler Ybbstalwerke GmbH

Original Assignee

Boehler Ybbstalwerke GmbH

Boehler Edelstahl GmbH

Priority date (The priority date 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 date listed.)

1995-01-16

Filing date

1996-01-10

Publication date

1996-07-17

1996-01-10 Application filed by Boehler Ybbstalwerke GmbH, Boehler Edelstahl GmbH filed Critical Boehler Ybbstalwerke GmbH

1996-01-10 Priority to SI9630109T priority Critical patent/SI0721995T1/xx

1996-07-17 Publication of EP0721995A2 publication Critical patent/EP0721995A2/fr

1996-11-27 Publication of EP0721995A3 publication Critical patent/EP0721995A3/fr

1999-10-20 Application granted granted Critical

1999-10-20 Publication of EP0721995B1 publication Critical patent/EP0721995B1/fr

2016-01-10 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 38
229910045601 alloy Inorganic materials 0.000 title claims abstract description 24
239000000956 alloy Substances 0.000 title claims abstract description 24
239000004033 plastic Substances 0.000 title claims abstract description 23
229920003023 plastic Polymers 0.000 title claims abstract description 23
229910052742 iron Inorganic materials 0.000 title claims abstract description 19
IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 26
OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 16
229910052799 carbon Inorganic materials 0.000 claims abstract description 16
229910052757 nitrogen Inorganic materials 0.000 claims abstract description 13
239000012535 impurity Substances 0.000 claims abstract 2
230000008018 melting Effects 0.000 claims abstract 2
238000002844 melting Methods 0.000 claims abstract 2
239000000463 material Substances 0.000 claims description 27
238000005260 corrosion Methods 0.000 claims description 13
230000007797 corrosion Effects 0.000 claims description 13
238000004519 manufacturing process Methods 0.000 claims description 5
229910052720 vanadium Inorganic materials 0.000 claims description 4
LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims description 4
239000010936 titanium Substances 0.000 claims description 3
NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 2
RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 2
229910052717 sulfur Inorganic materials 0.000 claims description 2
239000011593 sulfur Substances 0.000 claims description 2
229910052719 titanium Inorganic materials 0.000 claims description 2
XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims 1
229910052782 aluminium Inorganic materials 0.000 claims 1
150000004767 nitrides Chemical class 0.000 claims 1
239000011651 chromium Substances 0.000 abstract description 16
VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract description 11
229910052804 chromium Inorganic materials 0.000 abstract description 11
229910000734 martensite Inorganic materials 0.000 abstract description 5
229910000831 Steel Inorganic materials 0.000 description 6
230000000694 effects Effects 0.000 description 6
239000010959 steel Substances 0.000 description 6
PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
239000011159 matrix material Substances 0.000 description 4
ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 3
238000005275 alloying Methods 0.000 description 3
230000008859 change Effects 0.000 description 3
150000001875 compounds Chemical class 0.000 description 3
238000010438 heat treatment Methods 0.000 description 3
229910052750 molybdenum Inorganic materials 0.000 description 3
239000011733 molybdenum Substances 0.000 description 3
238000000465 moulding Methods 0.000 description 3
239000000126 substance Substances 0.000 description 3
239000000654 additive Substances 0.000 description 2
239000011248 coating agent Substances 0.000 description 2
238000000576 coating method Methods 0.000 description 2
230000006872 improvement Effects 0.000 description 2
150000001247 metal acetylides Chemical class 0.000 description 2
239000000203 mixture Substances 0.000 description 2
229910052759 nickel Inorganic materials 0.000 description 2
238000007711 solidification Methods 0.000 description 2
230000008023 solidification Effects 0.000 description 2
230000006641 stabilisation Effects 0.000 description 2
238000011105 stabilization Methods 0.000 description 2
238000005496 tempering Methods 0.000 description 2
WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
229910052721 tungsten Inorganic materials 0.000 description 2
239000010937 tungsten Substances 0.000 description 2
229910002065 alloy metal Inorganic materials 0.000 description 1
238000000137 annealing Methods 0.000 description 1
229910001566 austenite Inorganic materials 0.000 description 1
GPBUGPUPKAGMDK-UHFFFAOYSA-N azanylidynemolybdenum Chemical compound [Mo]#N GPBUGPUPKAGMDK-UHFFFAOYSA-N 0.000 description 1
230000009286 beneficial effect Effects 0.000 description 1
238000006243 chemical reaction Methods 0.000 description 1
238000005352 clarification Methods 0.000 description 1
239000010941 cobalt Substances 0.000 description 1
229910017052 cobalt Inorganic materials 0.000 description 1
GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
238000005336 cracking Methods 0.000 description 1
230000007423 decrease Effects 0.000 description 1
230000002349 favourable effect Effects 0.000 description 1
238000011049 filling Methods 0.000 description 1
238000007710 freezing Methods 0.000 description 1
230000000977 initiatory effect Effects 0.000 description 1
230000003993 interaction Effects 0.000 description 1
230000007774 longterm Effects 0.000 description 1
238000000034 method Methods 0.000 description 1
239000002557 mineral fiber Substances 0.000 description 1
239000012778 molding material Substances 0.000 description 1
229910052758 niobium Inorganic materials 0.000 description 1
239000010955 niobium Substances 0.000 description 1
GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
125000004433 nitrogen atom Chemical group N* 0.000 description 1
150000007524 organic acids Chemical class 0.000 description 1
235000005985 organic acids Nutrition 0.000 description 1
238000013021 overheating Methods 0.000 description 1
230000003647 oxidation Effects 0.000 description 1
238000007254 oxidation reaction Methods 0.000 description 1
238000001556 precipitation Methods 0.000 description 1
238000003825 pressing Methods 0.000 description 1
230000008569 process Effects 0.000 description 1
230000009467 reduction Effects 0.000 description 1
230000002195 synergetic effect Effects 0.000 description 1
238000011282 treatment Methods 0.000 description 1
150000003682 vanadium compounds Chemical class 0.000 description 1

Images

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
- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
- 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
- C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
- 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 the use of a chromium-containing, martensitic iron-based alloy for plastic molds.
Iron-based alloys with a chromium content of more than 12% are mainly used for the production of corrosion-resistant plastic molds for processing chemically attacking molding compounds.
temperable Cr steels with approx. 13.0% Cr and approx. 0.2 or approx. 0.4% by weight C are used, for example according to DIN material numbers 1.2082 and 1.2083.
These iron-base alloys, which essentially contain carbon and chromium, can be used economically for less stressed molds, but have the disadvantage that insufficient tool life is achieved for highly corrosive molding compounds and plastics with wearing additives.
a typical iron-based alloy for highly stressed plastic tools is material no. 1.2361 according to DIN.
a material distortion or an uneven dimensional change can occur, which often involves expensive reworking or the removal of the require processed part.
Such a non-uniform dimensional change is essentially brought about by a deformation texture or a line arrangement of the carbides.
the object of the invention was to avoid the above disadvantages and to propose a chromium-containing, martensitic iron-based alloy for thermally tempered plastic molds with high corrosion resistance, which molds can be produced economically with little dimensional change and have improved usage properties.
the advantages achieved by the invention are essentially to be seen in the fact that the molded part or the workpiece shows largely isometric dimensional changes during a heat treatment. Furthermore, the corrosion resistance of the material is improved and its matrix is more homogeneous. Both the mechanical properties and, surprisingly, the wear resistance of the plastic molds made from the alloy used according to the invention are significantly increased. The reason for this improvement in the properties of the mold material is seen in the fact that the iron-based alloy contains nitrogen, which element is on the one hand a strong austenite former and on the other hand causes nitride-forming elements to produce intermetallic hard phases.
the concentrations of all essential alloy elements are synergistic with one another, taking into account the effect of nitrogen the solidification, on the precipitations, on the conversion kinetics in a heat treatment and on the corrosion and cracking behavior of the iron-based alloy, so that when the material is used according to the invention for the production of thermally tempered plastic molds, these have significantly improved performance properties. This applies in particular to the high-gloss polishability of the plastic mold, which is often necessary, inter alia when the mold is used in the electronics industry.
a minimum content of 0.5% by weight of molybdenum is important to support the corrosion resistance or the stabilization of the surface passive layer, but contents higher than 3.0% by weight can have a ferrite-stabilizing effect, making it difficult to harden the alloy .
Vanadium has a very high affinity for both carbon and nitrogen.
the fine dispersed monocarbides (VC) or the mononitrides (VN) and the mixed carbides are advantageously effective in the range from 0.04 to 0.4% by weight of vanadium with regard to the material properties of the material in the tempered state, whereby particularly good hardness values and high tempering resistance with good dimensional stability of the shape were achieved in the range between 0.05 and 0.2% by weight of V, which is presumably due to the germinating effect of the small, homogeneously distributed vanadium compounds.
the total effect of carbon and nitrogen in the iron-based alloy is essential in the selected concentration ranges of the alloy metals.
With a total content in the range from 0.5 to 1.2% by weight of C + N it has surprisingly been found that the fatigue strength in particular in the case of alternating stresses such as occurs in the case of plastic forms due to the filling cycles is significantly increased. This is probably due to the stabilization of the passive layer in the atomic or micro range caused by nitrogen and thus a avoidance of crack initiation by local material attack.
Nitrogen atoms which will be examined in more detail, could have a beneficial effect on the material's alternating corrosion stress, as was found. Furthermore, with the above minimum total content, the cubic body-centered lattice obviously begins to be destabilized, so that there are no remaining areas with alpha and delta structure in the coating, which eliminates the tendency of the material to crack corrosion. With the same hardness and wear resistance, alloying the chromium-containing martensitic steel with carbon and nitrogen results in a lower carbide content, the matrix having increased strength, which significantly improves the performance properties of a highly stressed plastic mold.
Tungsten contents of up to 3.0% by weight improve the hardness and wear resistance, but higher values have a disadvantageous effect on the machinability and the annealing behavior of the material due to the high carbon affinity of the tungsten.
Niobium and / or titanium are monocarbide and mononitride formers in higher proportions; up to a concentration of 0.18% by weight or 0.2% by weight, however, these elements are mainly stored in mixed carbide, improve the mechanical properties of the steel and significantly reduce the risk of overheating. Higher levels can increase the brittleness of the molds, particularly when the carbon content exceeds 0.7% by weight.
Cobalt and nickel improve the material toughness in low contents of up to 2.8% by weight and 3.9% by weight, respectively, with nickel, an austenite-forming element, preferably not exceeding a concentration value of 1.5% by weight because of the hardenability should.
the invention is illustrated by means of examples which are described in are summarized in a table, described below.
Eight iron-based alloys were used for plastic molds of the same design, which are particularly high, but of the same chemical and wear, whereby the result values of the mold from the DIN material no To be able to clearly display shapes made of different materials.
the respective values are rounded total values.
the corrosion behavior, the mechanical properties, the fatigue strength, the hard material coating and the number of wear and tear are better with higher result values, less dimensional stability and better polishability of the material are indicated by lower identification numbers.

Landscapes

Chemical & Material Sciences (AREA)
Engineering & Computer Science (AREA)
Materials Engineering (AREA)
Mechanical Engineering (AREA)
Metallurgy (AREA)
Organic Chemistry (AREA)
Moulds For Moulding Plastics Or The Like (AREA)
Mold Materials And Core Materials (AREA)
Heat Treatment Of Articles (AREA)

EP96890005A 1995-01-16 1996-01-10 Utilisation d'un alliage ferreux pour la fabrication de formes pour la transformation des matières plastiques Expired - Lifetime EP0721995B1 (fr)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
SI9630109T SI0721995T1 (en)	1995-01-16	1996-01-10	Use of an iron based alloy for plastic molds

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
AT5495		1995-01-16
AT0005495A AT405193B (de)	1995-01-16	1995-01-16	Verwendung einer chromhältigen, martensitischen eisenbasislegierung für kunststofformen
AT54/95		1995-01-16

Publications (3)

Publication Number	Publication Date
EP0721995A2 true EP0721995A2 (fr)	1996-07-17
EP0721995A3 EP0721995A3 (fr)	1996-11-27
EP0721995B1 EP0721995B1 (fr)	1999-10-20

Family

ID=3480314

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP96890005A Expired - Lifetime EP0721995B1 (fr)	1995-01-16	1996-01-10	Utilisation d'un alliage ferreux pour la fabrication de formes pour la transformation des matières plastiques

Country Status (16)

Country	Link
US (1)	US5641453A (fr)
EP (1)	EP0721995B1 (fr)
JP (1)	JP3438121B2 (fr)
CN (1)	CN1068073C (fr)
AR (1)	AR000727A1 (fr)
AT (2)	AT405193B (fr)
BR (1)	BR9600095A (fr)
CA (1)	CA2167221C (fr)
CO (1)	CO4560389A1 (fr)
DE (1)	DE59603379D1 (fr)
DK (1)	DK0721995T3 (fr)
ES (1)	ES2138315T3 (fr)
GR (1)	GR3032228T3 (fr)
PE (1)	PE5897A1 (fr)
SI (1)	SI0721995T1 (fr)
TR (1)	TR199600037A2 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
AT407647B (de) *	1999-05-10	2001-05-25	Boehler Edelstahl	Martensitischer korrosionsbeständiger chromstahl
AT501794A1 (de) *	2005-04-26	2006-11-15	Boehler Edelstahl	Kunststoffform
WO2011124970A1 (fr) *	2010-04-07	2011-10-13	Toyota Jidosha Kabushiki Kaisha	Acier moulé austénitique résistant à la chaleur
WO2015124169A1 (fr)	2014-02-18	2015-08-27	Schmiedewerke Gröditz Gmbh	Acier au chrome pour pièces de machines fortement sollicitées à l'usure, en particulier pour matrices à pelleter
CN111074135A (zh) *	2019-11-14	2020-04-28	河冶科技股份有限公司	制备橡塑机械中螺杆的专用耐蚀耐磨工具钢及其制备方法和用于橡塑机械的螺杆
CN115679194A (zh) *	2021-07-30	2023-02-03	宝山钢铁股份有限公司	一种塑料模具钢板及其制造方法

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US6110300A (en) *	1997-04-07	2000-08-29	A. Finkl & Sons Co.	Tool for glass molding operations and method of manufacture thereof
CA2397408C (fr) *	2000-01-17	2006-10-03	Stahlwerk Ergste Westig Gmbh	Alliage chrome-acier
SE516622C2 (sv) *	2000-06-15	2002-02-05	Uddeholm Tooling Ab	Stållegering, plastformningsverktyg och seghärdat ämne för plastformningsverktyg
US6689312B2 (en) *	2001-11-28	2004-02-10	Sg Alternatives, L.L.C.	Alloy composition and improvements in mold components used in the production of glass containers
JP2007009321A (ja)	2005-06-02	2007-01-18	Daido Steel Co Ltd	プラスチック成形金型用鋼
CN103014510B (zh) *	2012-12-01	2015-05-13	滁州市成业机械制造有限公司	高强度冷挤压模具钢及其加工工艺
WO2015126311A1 (fr) *	2014-02-18	2015-08-27	Uddeholms Ab	Acier inoxydable pour un moule à plastique, et moule constitué de l'acier inoxydable
CN104018083B (zh) *	2014-06-20	2016-01-06	重庆材料研究院有限公司	含氮不锈轴承钢及制备方法
CN104164625B (zh) *	2014-08-01	2016-08-31	中材装备集团有限公司	一种用于高温工况下耐氯腐蚀的耐热钢及其使用方法
CN105112801B (zh) *	2015-09-09	2017-05-17	滁州迪蒙德模具制造有限公司	一种非金属模具的制造方法
US10508327B2 (en)	2016-03-11	2019-12-17	Daido Steel Co., Ltd.	Mold steel and mold
SE541151C2 (en)	2017-10-05	2019-04-16	Uddeholms Ab	Stainless steel
CN108559925A (zh) *	2018-08-01	2018-09-21	攀钢集团攀枝花钢铁研究院有限公司	模具钢及其制备方法
CN111575577B (zh) *	2020-04-26	2021-11-02	攀钢集团江油长城特殊钢有限公司	一种塑料模具圆钢及其制备方法
JP2022077310A (ja) *	2020-11-11	2022-05-23	株式会社不二越	マルテンサイト系ステンレス鋼

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3607461A (en) *	1967-12-18	1971-09-21	Trw Inc	Hot workability of austenitic stainless steel alloys
JPS4619774Y1 (fr) *	1970-02-25	1971-07-09
JPS5361514A (en) *	1976-11-16	1978-06-02	Daido Steel Co Ltd	Ferriteebased precipitation hardening type stainless steel
JPS53103918A (en) *	1977-02-23	1978-09-09	Hitachi Metals Ltd	Steel for prehardened metal mold used for forming glass
JPS54115615A (en) *	1978-02-28	1979-09-08	Hitachi Metals Ltd	Corrosion resistant alloy steel
AT393642B (de) *	1988-06-21	1991-11-25	Boehler Gmbh	Verwendung einer eisenbasislegierung zur pulvermetallurgischen herstellung von teilen mit hoher korrosionsbestaendigkeit, hoher verschleissfestigkeit sowie hoher zaehigkeit und druckfestigkeit, insbesondere fuer die kunststoffverarbeitung
JPH0577308A (ja) *	1991-04-24	1993-03-30	Hitachi Metals Ltd	合成樹脂成形用スクリユ
DE4212966C2 (de) *	1992-04-18	1995-07-13	Ver Schmiedewerke Gmbh	Verwendung eines martensitischen Chrom-Stahls
FR2708939B1 (fr) *	1993-08-11	1995-11-03	Sima Sa	Acier martensitique à l'azote à faible teneur en carbone et son procédé de fabrication.

1995
- 1995-01-16 AT AT0005495A patent/AT405193B/de not_active IP Right Cessation
1996
- 1996-01-10 AT AT96890005T patent/ATE185853T1/de active
- 1996-01-10 ES ES96890005T patent/ES2138315T3/es not_active Expired - Lifetime
- 1996-01-10 EP EP96890005A patent/EP0721995B1/fr not_active Expired - Lifetime
- 1996-01-10 CO CO96000747A patent/CO4560389A1/es unknown
- 1996-01-10 DE DE59603379T patent/DE59603379D1/de not_active Expired - Lifetime
- 1996-01-10 JP JP02837896A patent/JP3438121B2/ja not_active Expired - Fee Related
- 1996-01-10 SI SI9630109T patent/SI0721995T1/xx not_active IP Right Cessation
- 1996-01-10 DK DK96890005T patent/DK0721995T3/da active
- 1996-01-15 BR BR9600095A patent/BR9600095A/pt not_active IP Right Cessation
- 1996-01-15 CA CA002167221A patent/CA2167221C/fr not_active Expired - Fee Related
- 1996-01-15 CN CN96100864A patent/CN1068073C/zh not_active Expired - Fee Related
- 1996-01-16 AR ARP960101034A patent/AR000727A1/es unknown
- 1996-01-16 US US08/585,732 patent/US5641453A/en not_active Expired - Lifetime
- 1996-01-16 TR TR96/00037A patent/TR199600037A2/xx unknown
- 1996-01-25 PE PE1996000039A patent/PE5897A1/es not_active Application Discontinuation
1999
- 1999-12-22 GR GR990403315T patent/GR3032228T3/el unknown

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
AT407647B (de) *	1999-05-10	2001-05-25	Boehler Edelstahl	Martensitischer korrosionsbeständiger chromstahl
AT501794A1 (de) *	2005-04-26	2006-11-15	Boehler Edelstahl	Kunststoffform
AT501794B1 (de) *	2005-04-26	2008-06-15	Boehler Edelstahl	Kunststoffform
WO2011124970A1 (fr) *	2010-04-07	2011-10-13	Toyota Jidosha Kabushiki Kaisha	Acier moulé austénitique résistant à la chaleur
US9163303B2 (en)	2010-04-07	2015-10-20	Toyota Jidosha Kabushiki Kaisha	Austenitic heat-resistant cast steel
WO2015124169A1 (fr)	2014-02-18	2015-08-27	Schmiedewerke Gröditz Gmbh	Acier au chrome pour pièces de machines fortement sollicitées à l'usure, en particulier pour matrices à pelleter
CN111074135A (zh) *	2019-11-14	2020-04-28	河冶科技股份有限公司	制备橡塑机械中螺杆的专用耐蚀耐磨工具钢及其制备方法和用于橡塑机械的螺杆
CN111074135B (zh) *	2019-11-14	2021-07-06	河冶科技股份有限公司	耐蚀耐磨工具钢的制备方法和用于橡塑机械的螺杆
CN115679194A (zh) *	2021-07-30	2023-02-03	宝山钢铁股份有限公司	一种塑料模具钢板及其制造方法
CN115679194B (zh) *	2021-07-30	2023-09-12	宝山钢铁股份有限公司	一种塑料模具钢板及其制造方法

Also Published As

Publication number	Publication date
CO4560389A1 (es)	1998-02-10
JP3438121B2 (ja)	2003-08-18
GR3032228T3 (en)	2000-04-27
CA2167221C (fr)	2000-10-10
EP0721995B1 (fr)	1999-10-20
ATE185853T1 (de)	1999-11-15
EP0721995A3 (fr)	1996-11-27
DK0721995T3 (da)	2000-01-03
TR199600037A2 (tr)	1996-08-21
SI0721995T1 (en)	2000-02-29
US5641453A (en)	1997-06-24
ES2138315T3 (es)	2000-01-01
CN1068073C (zh)	2001-07-04
CA2167221A1 (fr)	1996-07-17
BR9600095A (pt)	1998-01-27
JPH08253846A (ja)	1996-10-01
AT405193B (de)	1999-06-25
ATA5495A (de)	1998-10-15
CN1134987A (zh)	1996-11-06
DE59603379D1 (de)	1999-11-25
AR000727A1 (es)	1997-08-06
PE5897A1 (es)	1997-04-21

Legal Events

Date	Code	Title	Description
1996-05-31	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
1996-07-17	17P	Request for examination filed	Effective date: 19960118
1996-07-17	AK	Designated contracting states	Kind code of ref document: A2 Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE
1996-07-17	AX	Request for extension of the european patent	Free format text: LT PAYMENT 960118;LV PAYMENT 960118;SI PAYMENT 960118
1996-07-17	RAX	Requested extension states of the european patent have changed	Free format text: LT PAYMENT 960118;LV PAYMENT 960118;SI PAYMENT 960118
1996-10-11	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
1996-11-27	AK	Designated contracting states	Kind code of ref document: A3 Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE
1996-11-27	AX	Request for extension of the european patent	Free format text: LT PAYMENT 960118;LV PAYMENT 960118;SI PAYMENT 960118
1997-11-19	17Q	First examination report despatched	Effective date: 19971001
1998-12-16	GRAG	Despatch of communication of intention to grant	Free format text: ORIGINAL CODE: EPIDOS AGRA
1999-03-16	GRAG	Despatch of communication of intention to grant	Free format text: ORIGINAL CODE: EPIDOS AGRA
1999-03-16	GRAH	Despatch of communication of intention to grant a patent	Free format text: ORIGINAL CODE: EPIDOS IGRA
1999-07-02	GRAH	Despatch of communication of intention to grant a patent	Free format text: ORIGINAL CODE: EPIDOS IGRA
1999-09-03	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1999-10-20	AK	Designated contracting states	Kind code of ref document: B1 Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE
1999-10-20	AX	Request for extension of the european patent	Free format text: LT PAYMENT 19960118;LV PAYMENT 19960118;SI PAYMENT 19960118
1999-10-20	REF	Corresponds to:	Ref document number: 185853 Country of ref document: AT Date of ref document: 19991115 Kind code of ref document: T
1999-10-29	REG	Reference to a national code	Ref country code: CH Ref legal event code: EP
1999-11-15	REG	Reference to a national code	Ref country code: CH Ref legal event code: NV Representative=s name: HANS RUDOLF GACHNANG PATENTANWALT
1999-11-25	REF	Corresponds to:	Ref document number: 59603379 Country of ref document: DE Date of ref document: 19991125
1999-11-26	ET	Fr: translation filed
1999-12-08	GBT	Gb: translation of ep patent filed (gb section 77(6)(a)/1977)	Effective date: 19991112
2000-01-01	REG	Reference to a national code	Ref country code: ES Ref legal event code: FG2A Ref document number: 2138315 Country of ref document: ES Kind code of ref document: T3
2000-01-03	REG	Reference to a national code	Ref country code: DK Ref legal event code: T3
2000-01-10	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: 20000110
2000-01-18	ITF	It: translation for a ep patent filed
2000-01-26	REG	Reference to a national code	Ref country code: IE Ref legal event code: FG4D Free format text: GERMAN
2000-01-31	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: MC Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY Effective date: 20000131
2000-03-31	REG	Reference to a national code	Ref country code: PT Ref legal event code: SC4A Free format text: AVAILABILITY OF NATIONAL TRANSLATION Effective date: 19991210
2000-08-18	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
2000-08-18	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
2000-10-04	26N	No opposition filed
2002-01-01	REG	Reference to a national code	Ref country code: GB Ref legal event code: IF02
2005-01-10	REG	Reference to a national code	Ref country code: SI Ref legal event code: IF
2005-01-11	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: DK Payment date: 20050111 Year of fee payment: 10
2005-01-12	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: IE Payment date: 20050112 Year of fee payment: 10
2005-01-26	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: GR Payment date: 20050126 Year of fee payment: 10
2005-02-23	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: BE Payment date: 20050223 Year of fee payment: 10
2006-01-10	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20060110
2006-01-31	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: DK Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20060131 Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20060131
2006-08-25	LTLA	Lt: lapse of european patent or patent extension	Effective date: 20060110
2006-08-28	REG	Reference to a national code	Ref country code: DK Ref legal event code: EBP
2006-10-18	REG	Reference to a national code	Ref country code: IE Ref legal event code: MM4A
2007-12-31	BERE	Be: lapsed	Owner name: BOHLER YBBSTALWERKE G.M.B.H. Effective date: 20060131 Owner name: BOHLER EDELSTAHL G.M.B.H. Effective date: 20060131
2008-10-31	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: GR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20060802
2014-01-31	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: PT Payment date: 20131219 Year of fee payment: 19
2014-04-30	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: DE Payment date: 20140122 Year of fee payment: 19 Ref country code: SE Payment date: 20140121 Year of fee payment: 19 Ref country code: CH Payment date: 20140121 Year of fee payment: 19 Ref country code: NL Payment date: 20140121 Year of fee payment: 19
2014-05-30	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: ES Payment date: 20140129 Year of fee payment: 19 Ref country code: IT Payment date: 20140129 Year of fee payment: 19 Ref country code: AT Payment date: 20140113 Year of fee payment: 19 Ref country code: FR Payment date: 20140123 Year of fee payment: 19
2014-06-30	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: GB Payment date: 20140121 Year of fee payment: 19
2015-07-17	REG	Reference to a national code	Ref country code: PT Ref legal event code: MM4A Free format text: LAPSE DUE TO NON-PAYMENT OF FEES Effective date: 20150710
2015-08-01	REG	Reference to a national code	Ref country code: DE Ref legal event code: R119 Ref document number: 59603379 Country of ref document: DE
2015-08-12	REG	Reference to a national code	Ref country code: NL Ref legal event code: V1 Effective date: 20150801
2015-08-28	REG	Reference to a national code	Ref country code: CH Ref legal event code: PL
2015-09-01	REG	Reference to a national code	Ref country code: SE Ref legal event code: EUG
2015-09-15	REG	Reference to a national code	Ref country code: AT Ref legal event code: MM01 Ref document number: 185853 Country of ref document: AT Kind code of ref document: T Effective date: 20150110
2015-09-23	GBPC	Gb: european patent ceased through non-payment of renewal fee	Effective date: 20150110
2015-09-30	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: NL Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150801
2015-10-30	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150110 Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150801 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150131 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150131 Ref country code: PT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150710
2015-10-30	REG	Reference to a national code	Ref country code: FR Ref legal event code: ST Effective date: 20150930
2015-11-30	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150110 Ref country code: SE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150111 Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150202
2015-12-31	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 Effective date: 20150110
2016-01-19	REG	Reference to a national code	Ref country code: PT Ref legal event code: MM4A Free format text: MAXIMUM VALIDITY LIMIT REACHED Effective date: 20160110
2016-02-26	REG	Reference to a national code	Ref country code: ES Ref legal event code: FD2A Effective date: 20160226
2016-04-29	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: ES Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150111
2016-05-31	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: PT Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 20160119
2017-07-31	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: PT Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 20150717

Publication	Publication Date	Title
EP0721995B1 (fr)	1999-10-20	Utilisation d'un alliage ferreux pour la fabrication de formes pour la transformation des matières plastiques
AT507215B1 (de)	2010-03-15	Verschleissbeständiger werkstoff
DE4212966C2 (de)	1995-07-13	Verwendung eines martensitischen Chrom-Stahls
DE69814896T2 (de)	2003-11-27	Stahl und wärmebehandeltes werkzeug, hergestellt in einem integrierten pulvermetallurgischem prozess und die nutzung eines solchen stahles für werkzeuge
EP0348380B1 (fr)	1992-11-19	Utilisation d'un alliage à base de fer pour la fabrication de pièces frittées, présentant une haute résistance à la corrosion, une haute résistance à l'usure ainsi qu'une haute tenacité et résistance à la compression et destinées, en particulier, au travail des matières synthétiques
AT409636B (de)	2002-09-25	Stahl für kunststoffformen und verfahren zur wärmebehandlung desselben
AT393387B (de)	1991-10-10	Kaltarbeitsstahl mit hoher druckfestigkeit und verwendung dieses stahles
DE3041565C2 (fr)	1987-12-17
EP1274872B1 (fr)	2004-10-06	Procede de production d'un acier allie a l'azote, compacte par pulverisation
EP0341643B1 (fr)	1992-10-28	Acier formé à froid résistant à la corrosion et composite contenant une matrice de cet acier et un matériau dur
DE69907896T4 (de)	2005-10-27	Kaltarbeitsstahl
DE19950263A1 (de)	2001-04-19	Verfahren zur Herstellung einer hochfesten Welle
EP1471160B1 (fr)	2006-09-27	Objet en acier travaillé à froid
EP2052096B1 (fr)	2016-05-18	Segment de piston en acier
DE60204449T2 (de)	2006-05-04	Stahlgegenstand
EP0733719B1 (fr)	1999-03-03	Alliage à base de fer pour applications aux températures élevées
EP1052304B1 (fr)	2005-12-28	Acier martensitique contenant du chrome résistant à la corrosion
EP2233596B1 (fr)	2013-09-18	Objet en acier pour travail à froid
AT407648B (de)	2001-05-25	Metallischer werkstoff mit hoher härte, hohem verschleisswiderstand und hoher zähigkeit
DE4334062A1 (de)	1994-04-07	Verwendung eines Stahls für warmfeste Werkzeuge
EP0433264A2 (fr)	1991-06-19	Procédé de préparation d'ébauches pour pièces comprenant un taux élevé de composés métalliques
AT145046B (de)	1936-03-25	Verfahren zur Herstellung von Spritzguß- und Preßformen für Gegenstände aus schwerpreßbaren Metallen und Legierungen, wie z. B. Nickel, Nickelkupfer, Eisen, Stähle u. dgl.
DE4202339A1 (de)	1992-08-13	Korrosionsbestaendiger, hochverschleissfester, haertbarer stahl
DE1533215B1 (de)	1970-11-05	Verwendung eines Stahls als Werkzeugstahl
DE10040147A1 (de)	2002-02-28	Hochfester, hochzäher martensitischer Stahl