EP0348380B1 - 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 - Google Patents
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 Download PDFInfo
- Publication number
- EP0348380B1 EP0348380B1 EP89890163A EP89890163A EP0348380B1 EP 0348380 B1 EP0348380 B1 EP 0348380B1 EP 89890163 A EP89890163 A EP 89890163A EP 89890163 A EP89890163 A EP 89890163A EP 0348380 B1 EP0348380 B1 EP 0348380B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- iron
- content
- weight
- alloy
- carbides
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/02—Making ferrous alloys by powder metallurgy
- C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
- C22C33/0278—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5%
- C22C33/0285—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5% with Cr, Co, or Ni having a minimum content higher than 5%
Definitions
- the invention relates to the use of an iron-based alloy with a special composition as a material for the powder metallurgical production of parts with high corrosion resistance, high wear resistance and high toughness and pressure resistance, preferably for plastic molds, machine parts and tools for non-cutting shaping.
- parts with high corrosion resistance, high wear resistance and high toughness and pressure resistance preferably for plastic molds, machine parts and tools for non-cutting shaping.
- shaping parts are exposed to chemical and abrasive stresses at the same time, these parts having to have high material toughness, high pressure resistance and special material homogeneity due to the mechanical stresses.
- Such requirements are placed, for example, on materials that are used in devices for pressing fiber-reinforced or filler-containing plastics.
- Austenitic steels or chrome steels with a chromium content of approx. 18%, for example alloys according to DIN material no., are used for mechanical components such as screws etc. and also for forming and pressing tools, which are particularly exposed to corrosive stresses. 1.4528. Although such materials have sufficient corrosion resistance, the wear behavior is usually unsatisfactory in practical operation.
- the invention is based on the object of avoiding the above disadvantages and, in particular, of creating materials which can be used advantageously for the plastics processing industry and which, due to a special composition when using certain manufacturing processes, provide high corrosion resistance, high wear resistance and high pressure resistance have good toughness properties.
- the invention therefore relates to the use of an iron-based alloy with a composition in% by weight.
- the matrix has a chromium content of at least 13% after hardening and tempering and the carbide content is at least 25% by volume, of which at least 5% by volume of the carbides are formed as MC carbides, the carbide grain size being less than 14 ⁇ m.
- the material has a niobium content of 0.2 to 3.0 and / or a titanium content of 0.2 to 3.5 and / or a boron content of 0.001 to 0.002. It is particularly preferred if the value is formed from
- the alloy according to the invention from a minimum value which takes into account the concentrations and the respective effect with the mutual influence of the carbide-forming elements chromium, vanadium, niobium and titanium and by which the wear resistance of the material in particular is determined, in certain narrow Limits set carbon contents and when using powder metallurgical manufacturing processes, materials that have high corrosion resistance, high wear resistance, high pressure resistance and high toughness at the same time and are advantageous, especially for the construction of plastic molds, can be used, the hardened and tempered state of the Chromium content in all areas of the matrix and the proportion as well as the composition and the grain size of the carbides can be adjusted according to the invention.
- an alloy powder was produced in the gas atomization process. After the powder had been poured into a capsule with a diameter of 250 mm and the capsule had been evacuated and sealed gas-tight, it was thermoformed at 1110 ° C. using a 6-fold degree of deformation. After soft annealing at 880 to 900 ° C and slow cooling, plastic molds were made from the forging rod. The hardness of the material was approx. 280 HB. The parts were hardened after heating to a temperature of 1140 ° C. by cooling in a warm bath, whereupon a hardness value of 61 HRC was measured. After tempering at 540 ° C the material hardness was 59 HRC.
- the wear behavior of the part was tested in the grinding wheel test, in which a steel disc rotates in a corundum-water mixture, against which the sample is pressed. The following wear conditions were applied:
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Powder Metallurgy (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
- Laminated Bodies (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
Claims (7)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT1599/88 | 1988-06-21 | ||
AT0159988A AT393642B (de) | 1988-06-21 | 1988-06-21 | Verwendung einer eisenbasislegierung zur pulvermetallurgischen herstellung von teilen mit hoher korrosionsbestaendigkeit, hoher verschleissfestigkeit sowie hoher zaehigkeit und druckfestigkeit, insbesondere fuer die kunststoffverarbeitung |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0348380A1 EP0348380A1 (fr) | 1989-12-27 |
EP0348380B1 true EP0348380B1 (fr) | 1992-11-19 |
EP0348380B2 EP0348380B2 (fr) | 1996-04-17 |
Family
ID=3516903
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP89890163A Expired - Lifetime EP0348380B2 (fr) | 1988-06-21 | 1989-06-14 | 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 |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP0348380B2 (fr) |
JP (1) | JP2583451B2 (fr) |
AT (2) | AT393642B (fr) |
AU (1) | AU615756B2 (fr) |
DE (1) | DE58902742D1 (fr) |
ES (1) | ES2052971T5 (fr) |
PT (1) | PT90925B (fr) |
ZA (1) | ZA894703B (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5900560A (en) * | 1995-11-08 | 1999-05-04 | Crucible Materials Corporation | Corrosion resistant, high vanadium, powder metallurgy tool steel articles with improved metal to metal wear resistance and method for producing the same |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2684736B2 (ja) * | 1988-12-27 | 1997-12-03 | 大同特殊鋼株式会社 | 粉末冷間工具鋼 |
AT405193B (de) * | 1995-01-16 | 1999-06-25 | Boehler Edelstahl | Verwendung einer chromhältigen, martensitischen eisenbasislegierung für kunststofformen |
GB2298869B (en) * | 1995-03-10 | 1999-03-03 | Powdrex Ltd | Stainless steel powders and articles produced therefrom by powder metallurgy |
US5679908A (en) * | 1995-11-08 | 1997-10-21 | Crucible Materials Corporation | Corrosion resistant, high vanadium, powder metallurgy tool steel articles with improved metal to metal wear resistance and a method for producing the same |
DE19924515A1 (de) * | 1999-05-28 | 2000-11-30 | Edelstahl Witten Krefeld Gmbh | Sprühkompaktierter Stahl, Verfahren zu seiner Herstellung und Verbundwerkstoff |
DE60109654T2 (de) * | 2001-11-13 | 2006-04-27 | Fundacion Inasmet, San Sebastian | Verfahren zur herstellung von produkten aus carbidverstärkten baumetallmaterialien |
SE0200429D0 (sv) * | 2002-02-15 | 2002-02-15 | Uddeholm Tooling Ab | Stållegering och verktyg tillverkat av stållegeringen |
US20060231167A1 (en) * | 2005-04-18 | 2006-10-19 | Hillstrom Marshall D | Durable, wear-resistant punches and dies |
AT501794B1 (de) * | 2005-04-26 | 2008-06-15 | Boehler Edelstahl | Kunststoffform |
SE535090C2 (sv) * | 2010-03-17 | 2012-04-10 | Uddeholms Ab | Förfarande för framställning av en slitplatta för en bandsågsbladstyrning, en sådan slitplatta, samt användning av ett stålmaterial för tillverkning av slitplattan |
CN103060700B (zh) * | 2013-01-07 | 2014-12-31 | 北京工业大学 | 硼化物颗粒强化Fe-Cr-Al复合材料及其制造方法 |
CN104878298B (zh) * | 2015-05-15 | 2017-05-03 | 安泰科技股份有限公司 | 粉末冶金耐磨损耐腐蚀合金 |
DE102017115396A1 (de) * | 2017-07-10 | 2019-01-10 | Saar-Pulvermetall GmbH | Rolle für eine Mahl- oder/und Pressvorrichtung, insbesondere Kollerrolle für eine Presse zur Herstellung von Pellets, und Verfahren zur Herstellung der Rolle |
CN111850427A (zh) * | 2020-06-07 | 2020-10-30 | 江苏钢银智能制造有限公司 | 一种合金钢材料及其钢板材加工铸造工艺 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA953540A (en) * | 1970-08-28 | 1974-08-27 | Hoganas Ab | High alloy steel powders and their consolidation into homogeneous tool steel |
DE2204886C3 (de) * | 1972-02-02 | 1979-11-22 | Gfe Gesellschaft Fuer Elektrometallurgie Mbh, 4000 Duesseldorf | Verfahren zur pulvermetallurgischen Herstellung von Schnellarbeitsstahl-Formkörpern |
US4249945A (en) * | 1978-09-20 | 1981-02-10 | Crucible Inc. | Powder-metallurgy steel article with high vanadium-carbide content |
SE446277B (sv) * | 1985-01-16 | 1986-08-25 | Kloster Speedsteel Ab | Vanadinhaltigt verktygsstal framstellt av metallpulver och sett vid dess framstellning |
US4765836A (en) * | 1986-12-11 | 1988-08-23 | Crucible Materials Corporation | Wear and corrosion resistant articles made from pm alloyed irons |
-
1988
- 1988-06-21 AT AT0159988A patent/AT393642B/de not_active IP Right Cessation
-
1989
- 1989-06-08 JP JP1144323A patent/JP2583451B2/ja not_active Expired - Lifetime
- 1989-06-14 EP EP89890163A patent/EP0348380B2/fr not_active Expired - Lifetime
- 1989-06-14 DE DE8989890163T patent/DE58902742D1/de not_active Expired - Lifetime
- 1989-06-14 AT AT89890163T patent/ATE82595T1/de not_active IP Right Cessation
- 1989-06-14 ES ES89890163T patent/ES2052971T5/es not_active Expired - Lifetime
- 1989-06-20 AU AU36662/89A patent/AU615756B2/en not_active Ceased
- 1989-06-21 ZA ZA894703A patent/ZA894703B/xx unknown
- 1989-06-21 PT PT90925A patent/PT90925B/pt not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5900560A (en) * | 1995-11-08 | 1999-05-04 | Crucible Materials Corporation | Corrosion resistant, high vanadium, powder metallurgy tool steel articles with improved metal to metal wear resistance and method for producing the same |
Also Published As
Publication number | Publication date |
---|---|
AT393642B (de) | 1991-11-25 |
PT90925A (pt) | 1989-12-29 |
EP0348380A1 (fr) | 1989-12-27 |
DE58902742D1 (de) | 1992-12-24 |
ATE82595T1 (de) | 1992-12-15 |
AU3666289A (en) | 1990-01-25 |
ATA159988A (de) | 1991-05-15 |
ZA894703B (en) | 1992-01-29 |
JPH0277556A (ja) | 1990-03-16 |
EP0348380B2 (fr) | 1996-04-17 |
PT90925B (pt) | 1997-10-31 |
ES2052971T5 (es) | 1996-10-01 |
AU615756B2 (en) | 1991-10-10 |
ES2052971T3 (es) | 1994-07-16 |
JP2583451B2 (ja) | 1997-02-19 |
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