EP1251187A1 - Werkzeugstahl für Kunststoffformen - Google Patents
Werkzeugstahl für Kunststoffformen Download PDFInfo
- Publication number
- EP1251187A1 EP1251187A1 EP01109276A EP01109276A EP1251187A1 EP 1251187 A1 EP1251187 A1 EP 1251187A1 EP 01109276 A EP01109276 A EP 01109276A EP 01109276 A EP01109276 A EP 01109276A EP 1251187 A1 EP1251187 A1 EP 1251187A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tool steel
- content
- steel
- steel according
- weight percent
- 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.)
- Granted
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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
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
-
- 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
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- 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
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
-
- 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
Definitions
- the invention relates to the manufacture and use of a pre-tempered tool steel for producing molds for plastic parts, in particular for dies with large dimensions.
- Plastic molds for spraying or pressing plastic parts always exist from two halves, a die and the core part.
- the surface quality of the plastic part is essentially determined by the quality of the matrix material.
- the working hardness of the mold steel of about 30-40 HRC is already by tempering the rolled or forged blank at steel manufacturers adjusted (pre-tempered plastic mold steel).
- Molds for plastics processing are today predominantly made of steels Material number. 1.2311 and 1.2738 and made from AISI P 20 (Chemical Analyzes see Table 1).
- EP 0 709 481 B1 describes a steel for the type in question Application proposed that has certain levels of boron, the hardenability to increase, with aluminum and titanium to shield the borer Nitrogen must be added.
- boron for improvement
- the hardenability leads to non-reproducible at larger diameters Results, i. undefined hardening, especially in the core area.
- the object of the invention is a tool steel for plastic molds to create, even with large diameters high core hardness without qualitative Disadvantages enabled.
- the tool steel according to the invention is used to avoid qualitative disadvantages deliberately made without the addition of boron, with the necessary hardness through the targeted set nickel content is achieved. Surprisingly, it has become namely shown that the missing or only in the context of inevitable impurities Boron present at carefully adjusted nickel content not Disadvantages in the achievable hardness values, but the steel at the same time especially for larger workpiece diameters better reproducible results in terms of its hardenability with less tendency to embrittlement shows. Similarly, no titanium is needed to shield the boron from nitrogen to be admitted.
- the tool steel according to the invention is ideal for use in plastic molds suitable, especially for larger diameters of the workpiece over 400 mm up to 1300 mm and above.
- the mold steel according to the invention is withoutmatsrißgefahr in water or Polymer curable, has only low segregations and a high degree of purity and is very high due to the higher tempering temperature after the heat treatment homogeneous and low in residual stress.
- a sulfur content of up to 0.15 Weight percent be provided, but usually one is to ensure a high degree of purity, the sulfur content as well as to keep phosphorus content as low as possible, for example S ⁇ 0.005% and / or P ⁇ 0.02%.
- Table 1 and Figure 1 is an example within the scope of the invention Composition of manufactured mold steel compared to commercially available steels. This carbon was lowered so far that Seigerept minimized and water hardenability is given at the same time (C max 0.30%). The silicon content was used to minimize the block segregations to an average value lowered from 0.1%, as well as the chromium content of 2.0 to 1.25%. The hardening-promoting alloy content has largely remained unchanged of Mn (about 1.50%), while the steel 1.2738 also corresponding content to Ni (about 1.10%) in conjunction with the other contents of the said surprisingly good overall properties.
- the improved temper resistance is set by higher additions of molybdenum (0.5% instead of about 0.20% at 1.2738) and vanadium (0.1% versus no vanadium at 1.2738).
- molybdenum 0.5% instead of about 0.20% at 1.27308
- vanadium 0.1% versus no vanadium at 1.2738.
- the content of sulfur on about 0.002% limited.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
Description
- gleichmäßig hohe Härte zur Vermeidung von mechanischen Beschädigungen und plastischen Verformungen durch Verkratzen, Verschleiß bei der Kunststoffverarbeitung, Deformation beim Zusammenfahren der Formhälften, Verbiegen und Rißbildung unter Betriebsbedingungen
- gleichmäßige Vergütungsgefügestruktur und hoher Reinheitsgrad zur Sicherstellung einer guten Maschinenbearbeitbarkeit und guter Polier- und fotochemischer Narbeigenschaften.
Formenstahl 1.2738 nach Ölhärtung | 595 °C |
Erfindungsgemäßer Formenstahl | 620 °C. |
Claims (9)
- Werkzeugstahl zur Herstellung von Formen für Kunststoffteile, gekennzeichnet durch die folgende Zusammensetzung (in Gewichtsprozent):C = 0,25 - 0,30Si = 0,04 - 0,20Mn = 1,2 - 2,0Cr = 1,0 - 2,0Ni = 0,9 - 1,5Mo = 0,3 - 0,8V ≤ 0,2Al = 0,01 - 0,03
- Werkzeugstahl nach Anspruch 1, gekennzeichnet durch einen Gehalt an Ni zwischen 0,9 und 1,2 Gewichtsprozent.
- Werkzeugstahl nach Anspruch 1 oder 2, gekennzeichnet durch einen Gehalt an Si zwischen 0,04 und 0,15 Gewichtsprozent.
- Werkzeugstahl nach einem der vorgehenden Ansprüche, gekennzeichnet durch Gehalt an Mn zwischen 1,2 und 1,6 Gewichtsprozent, einen Gehalt an Mo zwischen 0,4 und 0,6 Gewichtsprozent und einen Gehalt an V zwischen 0,05 und 0,15 Gewichtsprozent.
- Werkzeugstahl nach einem der vorgehenden Ansprüchem gekennzeichnet durch einen Gehalt an S zwischen 0,008 und 0,15 Gewichtsprozent.
- Werkzeugstahl nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß er wasser- oder polymervorvergütet ist und eine Maximalhärte bis 40 HRC aufweist.
- Werkzeugstahl nach einem der vorgehenden Ansprüche, dadurch gekennzeichnet, daß er nach dem Härten mit einer Anlaßtemperatur von ungefähr 620°C für ca. 30 HRC angelassen ist.
- Werkzeugstahl nach einem der vorgehenden Ansprüche, dadurch gekennzeichnet, daß er mit einem Durchmesser von mindestens 400 mm vorvergütet ist.
- Werkzeugstahl nach Anspruch 8, dadurch gekennzeichnet, daß er mit einem Durchmesser von über 1000 mm vorvergütet ist.
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES01109276T ES2202237T3 (es) | 2001-04-17 | 2001-04-17 | Uso de un acero para herramientas para moldes de plastico. |
AT01109276T ATE244319T1 (de) | 2001-04-17 | 2001-04-17 | Verwendung eines werkzeugstahles für kunststoffformen |
DE50100349T DE50100349D1 (de) | 2001-04-17 | 2001-04-17 | Verwendung eines Werkzeugstahles für Kunststoffformen |
EP01109276A EP1251187B1 (de) | 2001-04-17 | 2001-04-17 | Verwendung eines Werkzeugstahles für Kunststoffformen |
PT01109276T PT1251187E (pt) | 2001-04-17 | 2001-04-17 | Utilizacao de um aco para ferramentas em moldes para injeccao de materia sintetica |
PCT/EP2002/003060 WO2002083965A1 (de) | 2001-04-17 | 2002-03-20 | Werkzeugstahl für kunststofformen |
US10/296,462 US20030131911A1 (en) | 2001-04-17 | 2002-03-20 | Tool steel for plastic molds |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP01109276A EP1251187B1 (de) | 2001-04-17 | 2001-04-17 | Verwendung eines Werkzeugstahles für Kunststoffformen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1251187A1 true EP1251187A1 (de) | 2002-10-23 |
EP1251187B1 EP1251187B1 (de) | 2003-07-02 |
Family
ID=8177152
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01109276A Expired - Lifetime EP1251187B1 (de) | 2001-04-17 | 2001-04-17 | Verwendung eines Werkzeugstahles für Kunststoffformen |
Country Status (7)
Country | Link |
---|---|
US (1) | US20030131911A1 (de) |
EP (1) | EP1251187B1 (de) |
AT (1) | ATE244319T1 (de) |
DE (1) | DE50100349D1 (de) |
ES (1) | ES2202237T3 (de) |
PT (1) | PT1251187E (de) |
WO (1) | WO2002083965A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9522485B2 (en) | 2012-03-30 | 2016-12-20 | Buderus Edelstahl Gmbh | Primary material for molds adapted to mold plastics |
EP3587066A1 (de) * | 2018-06-26 | 2020-01-01 | A. Finkl & Sons Co. | Kunststoffspritzgiesswerkzeug und verfahren zur herstellung davon |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080073006A1 (en) * | 2006-09-27 | 2008-03-27 | Henn Eric D | Low alloy steel plastic injection mold base plate, method of manufacture and use thereof |
CN101311293B (zh) * | 2007-05-24 | 2010-10-13 | 宝山钢铁股份有限公司 | 一种大型塑模模块及其制造方法 |
KR102658586B1 (ko) * | 2015-07-27 | 2024-04-17 | 카스턴 매뉴팩츄어링 코오포레이숀 | 가변적인 페이스 기하학적 구조 및 재료 특성을 갖는 골프 클럽 헤드 |
US11045987B2 (en) * | 2016-02-01 | 2021-06-29 | Finkl Steel | Economical plastic tooling cores for mold and die sets |
US10239245B2 (en) * | 2016-02-01 | 2019-03-26 | A. Finkl & Sons Co. | Economical plastic tooling cores for mold and die sets |
DE102016103283A1 (de) | 2016-02-24 | 2017-08-24 | Buderus Edelstahl Gmbh | Verfahren zur Herstellung eines Warmformwerkzeuges und Warmformwerkzeug hieraus |
CN108724620B (zh) * | 2017-04-14 | 2022-09-16 | 芬可乐父子公司 | 用于塑模和冲模套件的经济性塑料加工工具型芯 |
CA3068500A1 (en) * | 2019-01-18 | 2020-07-18 | A. Finkl & Sons Co. | Economical plastic tooling cores for mold and die sets |
CN112375986A (zh) * | 2020-11-13 | 2021-02-19 | 江苏沙钢集团有限公司 | 一种热轧加回火预硬型塑料模具钢板及其生产方法 |
US20220162730A1 (en) * | 2020-11-20 | 2022-05-26 | A. Finkl & Sons Co. | Pre-hardened steel composition and machine parts made therewith |
CN114182083B (zh) * | 2021-11-01 | 2023-10-03 | 大冶特殊钢有限公司 | 一种提升2.25Cr-1.6W-V-Nb耐热合金无缝钢管冲击韧性的方法 |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DD156988A1 (de) * | 1981-01-15 | 1982-10-06 | Manfred Orosz | Herstellung eines ti-mikrolegierten verguetungsstahles |
DE3728476C1 (en) * | 1987-08-26 | 1989-04-06 | Benteler Werke Ag | Use of a steel as material for producing pipes for door reinforcement |
JPH0250910A (ja) * | 1988-08-15 | 1990-02-20 | Nippon Steel Corp | 熱疲労特性の良い金型鋼板の製造方法 |
EP0431557A1 (de) * | 1989-12-06 | 1991-06-12 | Daido Tokushuko Kabushiki Kaisha | Sehr gut schweissbarer Stahl zur Verwendung als Form bei der Herstellung von Kunststoffgegenständen |
EP0545884A2 (de) * | 1991-12-04 | 1993-06-09 | BÖHLER Edelstahl GmbH | Stahl sowie verfahren und Vorrichtung zu seiner Herstellung |
JPH0688163A (ja) * | 1991-11-05 | 1994-03-29 | Sanyo Special Steel Co Ltd | 熱間工具鋼 |
EP0709481A1 (de) * | 1994-10-31 | 1996-05-01 | CREUSOT LOIRE INDUSTRIE (Société Anonyme) | Niedrig legierter Stahl zur Herstellung von Spritzformen für plastische Werkstoffe oder für Gegenstände aus Gummi |
DE19533229C1 (de) * | 1995-09-08 | 1996-12-05 | Benteler Werke Ag | Verwendung einer Stahllegierung |
EP0882808A1 (de) * | 1997-06-04 | 1998-12-09 | Thyssen France SA | Verfahren zur Herstellung eines Stahles für Formen grosser Abmessungen |
EP1087030A2 (de) * | 1999-09-22 | 2001-03-28 | Sumitomo Metal Industries, Ltd. | Verfahren zur Herstellung eines Werkzeugstahles sowie Werkzeug |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2748036B1 (fr) * | 1996-04-29 | 1998-05-22 | Creusot Loire | Acier faiblement allie pour la fabrication de moules pour matieres plastiques |
-
2001
- 2001-04-17 PT PT01109276T patent/PT1251187E/pt unknown
- 2001-04-17 AT AT01109276T patent/ATE244319T1/de active
- 2001-04-17 ES ES01109276T patent/ES2202237T3/es not_active Expired - Lifetime
- 2001-04-17 EP EP01109276A patent/EP1251187B1/de not_active Expired - Lifetime
- 2001-04-17 DE DE50100349T patent/DE50100349D1/de not_active Expired - Lifetime
-
2002
- 2002-03-20 US US10/296,462 patent/US20030131911A1/en not_active Abandoned
- 2002-03-20 WO PCT/EP2002/003060 patent/WO2002083965A1/de active Application Filing
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DD156988A1 (de) * | 1981-01-15 | 1982-10-06 | Manfred Orosz | Herstellung eines ti-mikrolegierten verguetungsstahles |
DE3728476C1 (en) * | 1987-08-26 | 1989-04-06 | Benteler Werke Ag | Use of a steel as material for producing pipes for door reinforcement |
JPH0250910A (ja) * | 1988-08-15 | 1990-02-20 | Nippon Steel Corp | 熱疲労特性の良い金型鋼板の製造方法 |
EP0431557A1 (de) * | 1989-12-06 | 1991-06-12 | Daido Tokushuko Kabushiki Kaisha | Sehr gut schweissbarer Stahl zur Verwendung als Form bei der Herstellung von Kunststoffgegenständen |
JPH0688163A (ja) * | 1991-11-05 | 1994-03-29 | Sanyo Special Steel Co Ltd | 熱間工具鋼 |
EP0545884A2 (de) * | 1991-12-04 | 1993-06-09 | BÖHLER Edelstahl GmbH | Stahl sowie verfahren und Vorrichtung zu seiner Herstellung |
EP0709481A1 (de) * | 1994-10-31 | 1996-05-01 | CREUSOT LOIRE INDUSTRIE (Société Anonyme) | Niedrig legierter Stahl zur Herstellung von Spritzformen für plastische Werkstoffe oder für Gegenstände aus Gummi |
DE19533229C1 (de) * | 1995-09-08 | 1996-12-05 | Benteler Werke Ag | Verwendung einer Stahllegierung |
EP0882808A1 (de) * | 1997-06-04 | 1998-12-09 | Thyssen France SA | Verfahren zur Herstellung eines Stahles für Formen grosser Abmessungen |
EP1087030A2 (de) * | 1999-09-22 | 2001-03-28 | Sumitomo Metal Industries, Ltd. | Verfahren zur Herstellung eines Werkzeugstahles sowie Werkzeug |
Non-Patent Citations (2)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 014, no. 215 (C - 0716) 8 May 1990 (1990-05-08) * |
PATENT ABSTRACTS OF JAPAN vol. 018, no. 351 (C - 1220) 4 July 1994 (1994-07-04) * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9522485B2 (en) | 2012-03-30 | 2016-12-20 | Buderus Edelstahl Gmbh | Primary material for molds adapted to mold plastics |
EP3587066A1 (de) * | 2018-06-26 | 2020-01-01 | A. Finkl & Sons Co. | Kunststoffspritzgiesswerkzeug und verfahren zur herstellung davon |
Also Published As
Publication number | Publication date |
---|---|
US20030131911A1 (en) | 2003-07-17 |
ATE244319T1 (de) | 2003-07-15 |
PT1251187E (pt) | 2003-11-28 |
EP1251187B1 (de) | 2003-07-02 |
WO2002083965A1 (de) | 2002-10-24 |
DE50100349D1 (de) | 2003-08-07 |
ES2202237T3 (es) | 2004-04-01 |
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