EP3194632A1 - Alliage de fonte, pièce et procédé de fabrication correspondants - Google Patents
Alliage de fonte, pièce et procédé de fabrication correspondantsInfo
- Publication number
- EP3194632A1 EP3194632A1 EP15763023.7A EP15763023A EP3194632A1 EP 3194632 A1 EP3194632 A1 EP 3194632A1 EP 15763023 A EP15763023 A EP 15763023A EP 3194632 A1 EP3194632 A1 EP 3194632A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- alloy
- content
- nickel
- coefficient
- cast
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C37/00—Cast-iron alloys
- C22C37/10—Cast-iron alloys containing aluminium or silicon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/04—Influencing the temperature of the metal, e.g. by heating or cooling the mould
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/08—Making cast-iron alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C37/00—Cast-iron alloys
- C22C37/04—Cast-iron alloys containing spheroidal graphite
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C37/00—Cast-iron alloys
- C22C37/06—Cast-iron alloys containing chromium
- C22C37/08—Cast-iron alloys containing chromium with nickel
-
- 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
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
-
- 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
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- 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
- C22C38/04—Ferrous alloys, e.g. steel alloys containing 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
- C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
-
- 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
- C22C38/10—Ferrous alloys, e.g. steel alloys containing cobalt
-
- 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
- C22C38/10—Ferrous alloys, e.g. steel alloys containing cobalt
- C22C38/105—Ferrous alloys, e.g. steel alloys containing cobalt containing Co and Ni
-
- 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
- C22C38/34—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon
-
- 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
- C22C38/52—Ferrous alloys, e.g. steel alloys containing chromium with nickel with cobalt
-
- 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
- C22C38/56—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.7% by weight of carbon
-
- 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 cast iron alloy.
- the tools must have a low coefficient of thermal expansion, or a coefficient of thermal expansion close to that of the material or the material to be molded in the temperature range used for forming.
- thermoplastic materials polyimides for example
- composites containing these same thermoplastics require higher temperatures.
- Increasing the forming temperature also allows in some cases to decrease the duration of a production cycle.
- the object of the invention is to enable the manufacture by molding of a cast iron part whose thermal expansion is low for high temperatures and in particular up to 400 ° C., and whose expansion coefficient remains stable up to these temperatures. high temperatures.
- the invention aims to design an alloy that allows the manufacture of a tool having a low coefficient of expansion and stable, including at high temperatures. Also, the invention aims to design an alloy that allows the manufacturing such a tool having a small wall thickness while certainly having few structural defects.
- the subject of the invention is a spheroidal graphite or graphite graphite alloy comprising, in% by weight, the following elements: Carbon (C) between 1.2% and 3.5%, Si (Si ) between 1, 0% or 1, 2% and 3%, Nickel (Ni) between 26% and 31%, Cobalt (Co) between 15% and 20%.
- the alloy comprises: Magnesium (Mg) between 0.02% and 0.10%, Manganese (Mn) ⁇ 1.5%, Chromium (Cr) ⁇ 0.5%, and / or Phosphorus (P) ⁇ 0 , 12 or ⁇ 0.04%, and / or Sulfur (S) ⁇ 0.1 1 or ⁇ 0.03%, and / or Molybdenum (Mo) ⁇ 0.5%, and / or Copper (Cu) ⁇ 0 , 5%, the rest being Iron and unavoidable impurities.
- Mg Magnesium
- Mn Manganese
- Cr Chromium
- P Phosphorus
- S S
- Cu Copper
- the alloy may comprise one or more of the following characteristics:
- the nickel (Ni) content is at least 27% or 28% and / or at most 30%;
- the cobalt (Co) content is at least 16% and / or at most 18% or 19%;
- the alloy comprises Carbon (C) at least 1.4% or 1.5% and at most 3.1% or 3.3%, and / or Silicon (Si) at least 1.4% or 1.5% % and not more than 2.6% or 2.8%;
- the Manganese content (Mn) is at least 0.01% and / or at most 1.0%;
- the copper content (Cu) is at most 0.2%, 0.3%, or 0.4%;
- molybdenum (Mo) content is at most 0.2%, 0.3%, or 0.4%;
- the chromium (Cr) content is at most 0.3%, 0.4% or 0.5%.
- the invention also relates to a part made of a cast iron alloy, as defined above, and in particular the part being a tool.
- the invention also relates to a method for manufacturing a part as defined above, characterized in that it comprises the following steps:
- the subject of the invention is a cast iron alloy. It allows to obtain parts whose coefficient of thermal expansion is weak and stable up to a temperature of 400 ° C.
- the part is for example a tool, in particular a tool for manufacturing parts made of composite material or thermoplastic material.
- composition data are given in% by weight of the total weight of the alloy.
- a first aspect of the invention is the chemical composition of the alloy.
- the alloy is a cast iron alloy.
- the alloy may be a cast iron alloy with spheroidal graphite or lamellar graphite.
- the alloy comprises, in addition to Fe, carbon (C) between 1.2% and 3.5%, silicon (Si) between 1% and 3%, nickel (Ni) between 26% and 31%, and Cobalt (Co) between 15% and 20%.
- the alloy may comprise magnesium (Mg) between 0.02% and 0.10%.
- the alloy may comprise manganese (Mn) up to 1.5%, or up to
- the alloy may comprise chromium (Cr) at a content between traces and 0.5%.
- the alloy may comprise phosphorus (P) at a content between traces and 0.04% or between traces and 0.12%.
- the alloy may comprise sulfur (S) at a content between traces and 0.03% or between traces and 0.1%.
- the alloy may comprise molybdenum (Mo) at a content between traces and 0.5%.
- the alloy may comprise copper (Cu) at a content between traces and 0.5%.
- the nickel (Ni) content of the alloy may be preferably between at least 27% or 28% and at most 30%.
- the cobalt (Co) content of the alloy may be preferably from at least 16% to at most 18% or 19%.
- the carbon content (C) of the alloy may preferably be between at least 1.4% or 1.5% and at most 3.1% or 3.3%.
- the silicon (Si) content of the alloy may be preferably from at least 1.4% or 1.5% to at most 2.6% or 2.8%.
- the Manganese content (Mn) of the alloy may preferably be at least 0.01% and / or at most 1.0%.
- the copper (Cu) content of the alloy may be preferably less than 0.2%, 0.3%, or 0.4%.
- the Molybdenum (Mo) content of the alloy may be preferably less than 0.2%, 0.3%, or 0.4%.
- An iron-based alloy with a low coefficient of expansion is known as Fe-Ni36 (trade name INVAR®). It is a steel developed in the late 19th century. It contains 36% nickel and iron. The curve representing the expansion coefficient of iron / nickel alloys has an anomaly around 36% nickel: the coefficient of expansion is then much lower than for the other compositions. This is valid for low temperatures up to 130 ° C.
- the iron / nickel / cobalt alloy with 32% nickel and 5.5% cobalt has a lower coefficient of expansion than INVAR®, and above all, it keeps this property at higher temperatures.
- Ni-Resist D5 ASTM A4319 with 35% nickel (iron rest) has in particular a low coefficient of expansion: 5 * 10 -6 K 1 .
- Ferrynox N33 ® (33% nickel, 4% cobalt) gives a low coefficient of expansion and stability (4 * 10 "6 K “ 1 ) up to 180 ° C.
- Ferrynox N36 ® (36% nickel, 4% cobalt) has a higher coefficient of expansion (4.5 * 10 "6 K “ 1 ), but remains stable up to 250 ° C.
- the behavior of the coefficient of thermal expansion as a function of the temperature of the two FerrynoxN36 and FerrynoxN33 alloys is illustrated in the single figure.
- the alloy comprises, in addition to iron (Fe) and unavoidable impurities, only the following elements, within the limits indicated:
- the thermal expansion coefficient of the ExempIel is less than 6.4 * 10 -6 K -1 for a temperature below 400 ° C. Also, the coefficient of thermal expansion is relatively stable over a wide temperature range. It is between 6 * 10 "6 K “ 1 and 7 * 10 "6 K " 1 over the entire range of 150 ° C to 400 ° C.
- Another aspect of the alloy according to the invention is that it is weldable.
- the alloy comprises, in addition to iron (Fe) and unavoidable impurities, only the following elements, within the limits indicated:
- the alloy is a lamellar graphite cast iron.
- a second aspect of the invention is a part made of an alloy as defined above.
- the piece is notably a tool.
- the tool may comprise only portions of the alloy according to the invention or be entirely made of this alloy. Generally at least the form surface of the tool consists of the alloy according to the invention.
- the tooling has a minimum wall thickness that is less than 50 mm.
- a third aspect of the invention is the method of manufacturing a part made of an alloy according to the invention.
- First of all the part for example a tool, is cast in a mold.
- slow means less than 50 ° C / h, especially over the entire cooling period between casting of the part and solidification.
- the workpiece can be heat treated, for example by annealing.
- the alloy is used in particular for the manufacture of tools used subsequently for the manufacture of composite parts, for example thermoplastic material and carbon fibers.
- the technical field can be aeronautics.
- the alloy may comprise one or more of the following contents:
- Si - Silicon (Si) between 1, 2% and 3%, and / or
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1458657A FR3025807B1 (fr) | 2014-09-15 | 2014-09-15 | Alliage de fonte, piece et procede de fabrication correspondants |
| PCT/EP2015/071109 WO2016041971A1 (fr) | 2014-09-15 | 2015-09-15 | Alliage de fonte, pièce et procédé de fabrication correspondants |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3194632A1 true EP3194632A1 (fr) | 2017-07-26 |
| EP3194632B1 EP3194632B1 (fr) | 2018-08-01 |
Family
ID=51842606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP15763023.7A Active EP3194632B1 (fr) | 2014-09-15 | 2015-09-15 | Alliage de fonte, pièce et procédé de fabrication correspondants |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US10683567B2 (fr) |
| EP (1) | EP3194632B1 (fr) |
| ES (1) | ES2693509T3 (fr) |
| FR (1) | FR3025807B1 (fr) |
| TR (1) | TR201816113T4 (fr) |
| WO (1) | WO2016041971A1 (fr) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3063669B1 (fr) | 2017-03-10 | 2021-11-19 | Ferry Capitain | Chassis moule monobloc pour peau de drapage de composites |
| US11618937B2 (en) * | 2019-10-18 | 2023-04-04 | GM Global Technology Operations LLC | High-modulus, high-strength nodular iron and crankshaft |
| DE102021000922A1 (de) * | 2021-02-22 | 2022-08-25 | Siempelkamp Maschinen- Und Anlagenbau Gmbh | Gusseisenwerkstoff, Verwendung elnes Gusseisenwerkstoffs und Verfahren zur Herstellung und/oder Auskleidung elnes Formwerkzeugs |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69014085T2 (de) * | 1989-12-15 | 1995-06-22 | Inco Alloys Int | Oxidationsbeständige Legierungen mit niedrigem Ausdehnungskoeffizient. |
| JP3654899B2 (ja) * | 1992-12-15 | 2005-06-02 | 株式会社東芝 | 高強度低膨脹鋳鉄の製造方法 |
| CN1242715C (zh) | 2001-11-30 | 2006-02-22 | 安费合金公司 | 包括侧壁和多层材料所制底部的烹调容器和多层材料物品 |
| EP1975269A1 (fr) * | 2007-03-30 | 2008-10-01 | Imphy Alloys | Alliage austenitique fer-nickel-chrome-cuivre |
-
2014
- 2014-09-15 FR FR1458657A patent/FR3025807B1/fr not_active Expired - Fee Related
-
2015
- 2015-09-15 ES ES15763023.7T patent/ES2693509T3/es active Active
- 2015-09-15 WO PCT/EP2015/071109 patent/WO2016041971A1/fr not_active Ceased
- 2015-09-15 TR TR2018/16113T patent/TR201816113T4/tr unknown
- 2015-09-15 EP EP15763023.7A patent/EP3194632B1/fr active Active
- 2015-09-15 US US15/511,494 patent/US10683567B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| TR201816113T4 (tr) | 2018-11-21 |
| WO2016041971A1 (fr) | 2016-03-24 |
| FR3025807B1 (fr) | 2016-10-14 |
| US20170260608A1 (en) | 2017-09-14 |
| EP3194632B1 (fr) | 2018-08-01 |
| FR3025807A1 (fr) | 2016-03-18 |
| ES2693509T3 (es) | 2018-12-12 |
| US10683567B2 (en) | 2020-06-16 |
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