US20050115644A1 - Bulk steel for the production of injection moulds for plastic material or for the production of pieces for working metals - Google Patents
Bulk steel for the production of injection moulds for plastic material or for the production of pieces for working metals Download PDFInfo
- Publication number
- US20050115644A1 US20050115644A1 US10/509,103 US50910305A US2005115644A1 US 20050115644 A1 US20050115644 A1 US 20050115644A1 US 50910305 A US50910305 A US 50910305A US 2005115644 A1 US2005115644 A1 US 2005115644A1
- Authority
- US
- United States
- Prior art keywords
- steel
- block according
- less
- steel block
- elements
- 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.)
- Abandoned
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
- B22D17/2209—Selection of die materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/37—Mould cavity walls, i.e. the inner surface forming the mould cavity, e.g. linings
-
- 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
- C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
-
- 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
- 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
- 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
- C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
-
- 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
- C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
Definitions
- the present invention relates to a steel block which may be used, in particular, for the manufacture of moulds for the injection moulding of plastics materials or for the moulding of metals such as light alloys or for the manufacture of metal-working tools.
- Moulds for the injection moulding of plastics materials are generally produced from steels of which the hardness is approximately 300 HB.
- these moulds are used for the moulding of plastics such as industrial plastics or thermosetting plastics, however, it is preferable to use harder steels which are more resistant to wear.
- a steel of the type 55 NCDV 7 containing about 0.55% of carbon, 1.75% of nickel, chromium, molybdenum and vanadium may therefore be used and allows the manufacture of moulds of which the hardness is approximately 400 HB.
- this steel has a plurality of drawbacks: it is difficult to machine and difficult to weld. In addition, this steel often has localised segregations which constitute hard points which are detrimental to polishing or to chemical graining.
- the object of the present invention is to overcome these drawbacks by proposing a steel for moulds or for the manufacture of parts for metal-working which is easier to weld and easier to machine, polish and grain and is a better conductor of heat than steels according to the prior art, and allowing the manufacture of parts or tools having a hardness of approximately 450 HB to more than 500 HB, even after surface-hardening by nitriding, and this means that the required characteristics, in particular hardness characteristics, have to be compatible with tempering at at least 530° C.
- the invention accordingly relates to a steel block having a thickness which is greater than 20 mm and may attain 1500 mm, of which the structure is martensitic or martensito-bainitic, of which the hardness is between about 430 HB and 520 HB at all points, for the manufacture of parts for moulds or for tools, the chemical composition of the steel comprising, in % by weight: 0.180% ⁇ C ⁇ 0.400% Si ⁇ 0.8% Mn ⁇ 2.5% Ni ⁇ 3% Cr ⁇ 3.5% Mo+W/2 ⁇ 2.8% V+Nb/2+Ta/4 ⁇ 0.5% Al ⁇ 0.4% Ti+Zr/2 ⁇ 0.1%
- the composition is such that: R/(2.7 ⁇ Tr) ⁇ 0.90, more preferably R/(2.7 ⁇ Tr) ⁇ 0.80.
- the composition is such that U/Dr ⁇ 9.0.
- the chemical composition of the steel is such that: 0.230% ⁇ C ⁇ 0.350% Si ⁇ 0.30% 0.1% ⁇ Mn ⁇ 1.8% Ni ⁇ 2.5% 0.2% ⁇ Cr ⁇ 3% Mo+W/2 ⁇ 2.5% V+Nb/2+Ta/4 ⁇ 0.3% Mo*+3 ⁇ V* ⁇ 0.8% and even more preferable, such that: 0.240% ⁇ C ⁇ 0.320% Si ⁇ 0.15% 0.1% ⁇ Mn ⁇ 1.6% Ni ⁇ 2% 0.2% ⁇ Cr ⁇ 2.5% 0.3% ⁇ Mo+W/2 ⁇ 2.5% V+Nb/2+Ta/4 ⁇ 0.3% Mo*+3 ⁇ V* ⁇ 1.2% It is therefore preferable that the composition is such that Tr ⁇ 4.5.
- the invention also relates to a mould part made of steel which is machined in a block according to the invention, of which at least a surface portion is hardened by nitriding and of which the hardness at all points is between 430 HB and 530 HB.
- the steel according to the invention has the advantage of being a better conductor of heat than the steels according to the prior art.
- This better thermal conductivity allows the cooling ducts to be further removed from the surface of the moulds than when using steels according to the prior art.
- the risk of fissures between the ducts and the surface of the mould impression is substantially reduced.
- the cooling of the moulds takes place more uniformly and this improves the quality of moulding.
- the steel according to the invention is also intended for the manufacture of metal working parts.
- the parts for moulds or for metal working are manufactured by machining solid blocks of steel which are quenched to obtain a homogeneous martensito-bainitic structure and tempered to obtain the desired properties of hardness and ductility. It is therefore necessary to use a steel having high temperability and significant hardenability. However, these hardened steels must have the best possible machinability and the highest possible thermal conductivity. This last property helps to improve the productivity of the moulding operations. The combination of these various properties is initially contradictory. In fact, it is known that, the harder the steel is, the easier it is to machine, and it is known that the machinability may be improved by adding alloying elements such as sulphur, calcium, selenium, tellurium or lead.
- the steel must contain:
- composition of the steel must be selected in order to obtain the desired characteristics for use.
- composition must be such that:
- the steel is produced, is cast and hot-rolled or hot-forged in a known manner and cut to obtain blocks of which the thickness is greater than 20 mm and may exceed 100 mm and attain 400 mm, possibly 600 mm and even 1500 mm. It should be noted that, with the smallest thicknesses, the blocks may be sheets or large plates and, with the greatest thicknesses, they are generally forged blocks.
- the blocks are austenitised, optionally in the forging or rolling heat, at a temperature higher than AC 3 and preferably lower than 950° C., in particular when the steel contains boron, and they are then quenched in air, oil or water, depending on the thickness and quenchability of the steel, so as to obtain a martensitic or martensito-bainitic structure in all the mass. Finally, they are tempered at a temperature higher than 500° C. and preferably of at least 550° C. but lower than AC 1 . A hardness between approximately 430 HB and 530 HB is thus obtained.
- parts of moulds comprising impressions which are polished and optionally grained are machined in a known manner.
- these parts are surface hardened, for example by gaseous nitriding. After gaseous nitriding, apart from the extreme nitrided surface of the parts, the hardness of the steel is between approximately 430 HB and 530 HB.
- Examples 1 to 6, 9 to 12 and 14 to 16 correspond to the invention and examples 17, 18, 20 and 21 are given by way of comparison. These steels do not contain additions of selenium, tellurium, lead, bismuth or calcium. However, they contain a little sulphur, between 0.010% and 0.020%.
- the hardness HB has also been determined in the tempered quenched state, in other words for a martensitic or martensito-bainitic structure tempered at 550° C., as well as the hardness HVHAZ in the heat-affected zone in the vicinity of a weld which has been compared with the hardness HVbasic of the basic metal not affected by the heat.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Manufacturing & Machinery (AREA)
- Heat Treatment Of Articles (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Heat Treatment Of Steel (AREA)
- Heat Treatment Of Sheet Steel (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
- Lubricants (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0204115A FR2838138B1 (fr) | 2002-04-03 | 2002-04-03 | Acier pour la fabrication de moules d'injection de matiere plastique ou pour la fabrication de pieces pour le travail des metaux |
FR0204115 | 2002-04-03 | ||
PCT/FR2003/001013 WO2003083153A1 (fr) | 2002-04-03 | 2003-04-01 | Bloc en acier pour la fabrication de moules d'injection de matiere plastique ou pour la fabrication de pieces pour le travail des metaux |
Publications (1)
Publication Number | Publication Date |
---|---|
US20050115644A1 true US20050115644A1 (en) | 2005-06-02 |
Family
ID=28052057
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/509,103 Abandoned US20050115644A1 (en) | 2002-04-03 | 2003-04-01 | Bulk steel for the production of injection moulds for plastic material or for the production of pieces for working metals |
Country Status (22)
Country | Link |
---|---|
US (1) | US20050115644A1 (ja) |
EP (1) | EP1490526B1 (ja) |
JP (2) | JP4323324B2 (ja) |
KR (1) | KR100934935B1 (ja) |
CN (1) | CN1317416C (ja) |
AR (1) | AR039237A1 (ja) |
AT (1) | ATE298010T1 (ja) |
AU (1) | AU2003258841B2 (ja) |
BR (1) | BRPI0308832B1 (ja) |
CA (1) | CA2480651C (ja) |
DE (1) | DE60300867T2 (ja) |
ES (1) | ES2240945T3 (ja) |
FR (1) | FR2838138B1 (ja) |
HK (1) | HK1067669A1 (ja) |
MX (1) | MXPA04009501A (ja) |
MY (1) | MY129855A (ja) |
PL (1) | PL199775B1 (ja) |
RU (1) | RU2309190C2 (ja) |
TW (1) | TWI328045B (ja) |
UA (1) | UA77516C2 (ja) |
WO (1) | WO2003083153A1 (ja) |
ZA (1) | ZA200407399B (ja) |
Cited By (9)
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 |
EP2123787A1 (fr) * | 2008-05-06 | 2009-11-25 | Industeel Creusot | Acier à hautes caractéristiques pour pièces massives |
EP2218802A1 (en) * | 2009-01-29 | 2010-08-18 | Daido Tokushuko Kabushiki Kaisha | Steel for mold for plastic molding and mold for plastic molding |
EP2535430A3 (de) * | 2011-06-15 | 2014-03-05 | Buderus Edelstahl Gmbh | Werkzeugstahl für höher beanspruchte Warmumformungswerkzeuge sowie dessen Herstellungsprozess |
US20150144233A1 (en) * | 2013-11-27 | 2015-05-28 | Doosan Heavy Industries & Construction Co., Ltd. | Hybrid mold steel and manufacturing method thereof |
CN105112802A (zh) * | 2015-09-09 | 2015-12-02 | 滁州迪蒙德模具制造有限公司 | 一种制备耐磨塑料模具的方法 |
CN105112801A (zh) * | 2015-09-09 | 2015-12-02 | 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 |
EP2939763A3 (en) * | 2014-04-30 | 2016-01-06 | Daido Steel Co.,Ltd. | Steel for mold, and mold |
EP3543363A1 (en) * | 2018-03-23 | 2019-09-25 | General Electric Company | A martensitic steel alloy component and process of forming a martensitic alloy component |
Families Citing this family (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7229665B2 (en) | 2001-05-22 | 2007-06-12 | Millipore Corporation | Process of forming multilayered structures |
KR100836699B1 (ko) * | 2005-10-27 | 2008-06-10 | 히타치 긴조쿠 가부시키가이샤 | 금형용 강 |
AU2008283824B2 (en) | 2007-08-01 | 2012-04-12 | Ati Properties, Inc. | High hardness, high toughness iron-base alloys and methods for making same |
US8444776B1 (en) | 2007-08-01 | 2013-05-21 | Ati Properties, Inc. | High hardness, high toughness iron-base alloys and methods for making same |
US9182196B2 (en) | 2011-01-07 | 2015-11-10 | Ati Properties, Inc. | Dual hardness steel article |
US9657363B2 (en) * | 2011-06-15 | 2017-05-23 | Ati Properties Llc | Air hardenable shock-resistant steel alloys, methods of making the alloys, and articles including the alloys |
EP2746419A1 (en) * | 2012-12-20 | 2014-06-25 | Sandvik Intellectual Property AB | Bainitic steel for rock drilling component |
CN103334061B (zh) * | 2013-06-18 | 2016-01-20 | 上海大学 | 高导热率大截面压铸模具钢及其制备和热处理方法 |
EP2789699B1 (en) * | 2013-08-30 | 2016-12-28 | Rautaruukki Oy | A high-hardness hot-rolled steel product, and a method of manufacturing the same |
AT515157B1 (de) * | 2013-11-21 | 2016-12-15 | Böhler Edelstahl GmbH & Co KG | Verfahren zur Herstellung von Kunststoffformen aus martensitischem Chromstahl und Kunststoffform |
RU2555319C1 (ru) * | 2014-09-15 | 2015-07-10 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Южно-Уральский государственный университет" (национальный исследовательский университет) (ФГБОУ ВПО "ЮУрГУ" (НИУ)) | Легкообрабатываемая конструкционная хромомарганцевоникельмолибденовая сталь |
RU2561558C1 (ru) * | 2014-09-15 | 2015-08-27 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Южно-Уральский государственный университет" (национальный исследовательский университет) (ФГБОУ ВПО "ЮУрГУ" (НИУ)) | Легкообрабатываемая конструкционная хромомарганцевоникелевая сталь |
RU2586933C1 (ru) * | 2015-06-08 | 2016-06-10 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Южно-Уральский государственный университет" (национальный исследовательский университет) (ФГБОУ ВПО "ЮУрГУ" (НИУ)) | Мартенситная коррозионно-стойкая хромсодержащая сталь с улучшенной обрабатываемостью резанием |
DE102015113058A1 (de) | 2015-08-07 | 2017-02-09 | Böhler Edelstahl GmbH & Co. KG | Verfahren zum Herstellen eines Werkzeugstahles |
CN105063514B (zh) * | 2015-09-07 | 2017-05-10 | 宁波瑞国精机工业有限公司 | 一种车用铁链销及其加工方法 |
TWI756226B (zh) * | 2016-06-30 | 2022-03-01 | 瑞典商伍德赫爾恩股份有限公司 | 用於工具架之鋼 |
CN106222564B (zh) * | 2016-08-30 | 2018-09-04 | 张家港中环海陆特锻股份有限公司 | 钢锭及其冶炼方法、避免钢锭锻造开裂方法 |
JP7069654B2 (ja) * | 2017-11-14 | 2022-05-18 | 大同特殊鋼株式会社 | 金型補修溶接材料 |
CN108220810A (zh) * | 2017-12-29 | 2018-06-29 | 钢铁研究总院 | 一种高耐磨高强韧高温渗氮钢及其制备方法 |
JP7167483B2 (ja) * | 2018-05-15 | 2022-11-09 | 大同特殊鋼株式会社 | ダイカスト金型用鋼及びダイカスト金型 |
DE102018207888A1 (de) * | 2018-05-18 | 2019-11-21 | Volkswagen Aktiengesellschaft | Stahlmaterial und Verfahren zur Herstellung eines Stahlmaterials |
CN108774712A (zh) * | 2018-06-21 | 2018-11-09 | 河南中原特钢装备制造有限公司 | 超高热导率热冲压模具钢及其制造方法 |
JP2020132891A (ja) * | 2019-02-12 | 2020-08-31 | 山陽特殊製鋼株式会社 | 熱伝導率に優れる金型用鋼 |
JP7524586B2 (ja) | 2020-04-10 | 2024-07-30 | 大同特殊鋼株式会社 | 肌焼鋼、並びに、高強度部材及びその製造方法 |
WO2021208181A1 (zh) * | 2020-04-14 | 2021-10-21 | 北京科技大学 | 一种低温高韧高温高强及高淬透性热模钢及制备技术 |
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CN114875335A (zh) * | 2022-05-31 | 2022-08-09 | 宝武集团鄂城钢铁有限公司 | 一种截面硬度均匀的预硬型镜面塑料模具钢 |
CN115786819A (zh) * | 2022-12-09 | 2023-03-14 | 广东新兴铸管有限公司 | 一种具有长寿命、高冶金质量的大管径管模及其制备方法 |
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US3615879A (en) * | 1967-08-08 | 1971-10-26 | Pont A Mousson | Centrifugal mold for the casting of liquid metal and the process for producing said centrifugal mold |
US5013524A (en) * | 1989-04-24 | 1991-05-07 | Boehler Gesellschaft M.B.H. | Martensite-hardenable steel |
US5458704A (en) * | 1992-07-21 | 1995-10-17 | Thyssen Stahl Ag | Process for the production of thick armour plates |
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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 |
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FR2726287B1 (fr) * | 1994-10-31 | 1997-01-03 | Creusot Loire | Acier faiblement allie pour la fabrication de moules pour matieres plastiques ou pour caoutchouc |
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CA2323952A1 (en) * | 1999-01-28 | 2000-08-03 | Yasutaka Okada | Machine structural steel product |
KR20020031557A (ko) * | 2000-10-21 | 2002-05-02 | 이계안 | 플라스틱 사출금형용 합금조성물 |
-
2002
- 2002-04-03 FR FR0204115A patent/FR2838138B1/fr not_active Expired - Lifetime
-
2003
- 2003-04-01 CN CNB038078600A patent/CN1317416C/zh not_active Expired - Lifetime
- 2003-04-01 AT AT03740548T patent/ATE298010T1/de active
- 2003-04-01 JP JP2003580584A patent/JP4323324B2/ja not_active Expired - Lifetime
- 2003-04-01 AU AU2003258841A patent/AU2003258841B2/en not_active Expired
- 2003-04-01 PL PL371289A patent/PL199775B1/pl unknown
- 2003-04-01 CA CA002480651A patent/CA2480651C/fr not_active Expired - Lifetime
- 2003-04-01 BR BRPI0308832A patent/BRPI0308832B1/pt active IP Right Grant
- 2003-04-01 ES ES03740548T patent/ES2240945T3/es not_active Expired - Lifetime
- 2003-04-01 DE DE60300867T patent/DE60300867T2/de not_active Expired - Lifetime
- 2003-04-01 RU RU2004132201/02A patent/RU2309190C2/ru active
- 2003-04-01 EP EP03740548A patent/EP1490526B1/fr not_active Expired - Lifetime
- 2003-04-01 MX MXPA04009501A patent/MXPA04009501A/es active IP Right Grant
- 2003-04-01 KR KR1020047015777A patent/KR100934935B1/ko active IP Right Grant
- 2003-04-01 WO PCT/FR2003/001013 patent/WO2003083153A1/fr active IP Right Grant
- 2003-04-01 US US10/509,103 patent/US20050115644A1/en not_active Abandoned
- 2003-04-01 UA UA20041108936A patent/UA77516C2/xx unknown
- 2003-04-02 MY MYPI20031219A patent/MY129855A/en unknown
- 2003-04-02 TW TW092107540A patent/TWI328045B/zh not_active IP Right Cessation
- 2003-04-03 AR ARP030101162A patent/AR039237A1/es active IP Right Grant
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2004
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- 2004-12-31 HK HK04110401A patent/HK1067669A1/xx not_active IP Right Cessation
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2008
- 2008-08-05 JP JP2008201465A patent/JP2009024260A/ja active Pending
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Cited By (14)
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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 |
US9103008B2 (en) | 2008-05-06 | 2015-08-11 | Industeel Creusot | High-characteristic steel for large-size parts |
EP2123787A1 (fr) * | 2008-05-06 | 2009-11-25 | Industeel Creusot | Acier à hautes caractéristiques pour pièces massives |
WO2009141556A1 (fr) * | 2008-05-06 | 2009-11-26 | Industeel Creusot | Acier à hautes caractéristiques pour pièces massives |
US20110108169A1 (en) * | 2008-05-06 | 2011-05-12 | Industeel Creusot | Steel with high properties for solid parts |
EP2218802A1 (en) * | 2009-01-29 | 2010-08-18 | Daido Tokushuko Kabushiki Kaisha | Steel for mold for plastic molding and mold for plastic molding |
EP2535430A3 (de) * | 2011-06-15 | 2014-03-05 | Buderus Edelstahl Gmbh | Werkzeugstahl für höher beanspruchte Warmumformungswerkzeuge sowie dessen Herstellungsprozess |
US20150144233A1 (en) * | 2013-11-27 | 2015-05-28 | Doosan Heavy Industries & Construction Co., Ltd. | Hybrid mold steel and manufacturing method thereof |
EP2939763A3 (en) * | 2014-04-30 | 2016-01-06 | Daido Steel Co.,Ltd. | Steel for mold, and mold |
US10173258B2 (en) | 2014-04-30 | 2019-01-08 | Daido Steel Co., Ltd. | Steel for mold, and mold |
CN105112802A (zh) * | 2015-09-09 | 2015-12-02 | 滁州迪蒙德模具制造有限公司 | 一种制备耐磨塑料模具的方法 |
CN105112801A (zh) * | 2015-09-09 | 2015-12-02 | 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 |
EP3543363A1 (en) * | 2018-03-23 | 2019-09-25 | General Electric Company | A martensitic steel alloy component and process of forming a martensitic alloy component |
US10760150B2 (en) | 2018-03-23 | 2020-09-01 | General Electric Company | Martensitic alloy component and process of forming a martensitic alloy component |
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