ES2160891T3 - PROCEDURE FOR THE PREPARATION OF A RESULFURED STEEL OF FINE AUSTENITICAL GRAIN. - Google Patents
PROCEDURE FOR THE PREPARATION OF A RESULFURED STEEL OF FINE AUSTENITICAL GRAIN.Info
- Publication number
- ES2160891T3 ES2160891T3 ES97203234T ES97203234T ES2160891T3 ES 2160891 T3 ES2160891 T3 ES 2160891T3 ES 97203234 T ES97203234 T ES 97203234T ES 97203234 T ES97203234 T ES 97203234T ES 2160891 T3 ES2160891 T3 ES 2160891T3
- Authority
- ES
- Spain
- Prior art keywords
- steel
- grain
- fine
- metals
- wire
- 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
- 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
- C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Heat Treatment Of Steel (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
Disclosed is a particular type of fine-austenitic-grain globular-sulfides resulfurized carbon and/or alloy steel suitable for casehardening and hardening-tempering treatments, with the addition of transition metals of Group III (rare earth metals or lanthanides), in form of non-coated wire or wire coated with metals, metal alloys or still other coatings, such as ceramic coating or other types of coatings. The addition of rare earths as metal wire to ingot mould or tundish allows rare earth elements to be perfectly diffused and homogenized throughout the product and globular sulfides to be homogeneously distributed as well throughout the cast section; the resulting steel displays better machinability properties than steel produced by means of traditional techniques.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT96MI002219A IT1286045B1 (en) | 1996-10-25 | 1996-10-25 | IMPROVED RESOLFORATED FINE AUSTENITIC GRAIN STEEL AND RELATED PROCEDURE TO OBTAIN IT |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2160891T3 true ES2160891T3 (en) | 2001-11-16 |
Family
ID=11375098
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES97203234T Expired - Lifetime ES2160891T3 (en) | 1996-10-25 | 1997-10-16 | PROCEDURE FOR THE PREPARATION OF A RESULFURED STEEL OF FINE AUSTENITICAL GRAIN. |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP0838534B1 (en) |
AT (1) | ATE203282T1 (en) |
DE (1) | DE69705691T2 (en) |
DK (1) | DK0838534T3 (en) |
ES (1) | ES2160891T3 (en) |
GR (1) | GR3036834T3 (en) |
IT (1) | IT1286045B1 (en) |
PT (1) | PT838534E (en) |
SI (1) | SI0838534T1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10047642A1 (en) | 2000-09-26 | 2002-04-11 | Basf Ag | Process for the dehydrogenation of hydrocarbons |
DE10060099A1 (en) | 2000-12-04 | 2002-06-06 | Basf Ag | Regeneration of a dehydrogenation catalyst |
DE10150811A1 (en) | 2001-10-15 | 2003-04-24 | Basf Ag | Dehydrogenation of alkanes, e.g. propane to propene, comprises dehydrogenation of ethylbenzene to styrene to form hydrogen containing waste gas stream and heterogeneous catalyzed dehydrogenation of the alkane mixed with the hydrogen |
JP4041511B2 (en) | 2005-10-17 | 2008-01-30 | 株式会社神戸製鋼所 | Low-carbon sulfur free-cutting steel with excellent machinability |
EP2432590A1 (en) | 2009-05-20 | 2012-03-28 | Basf Se | Monolith catalyst and use thereof |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2421948A1 (en) * | 1978-04-06 | 1979-11-02 | Pro Chi Met Produits Chim Meta | PROCESS FOR THE PREPARATION OF FERROUS ALLOYS SENSITIVELY FREE OF CERIUM, ALLOWING IN PARTICULAR IMPROVEMENT OF THEIR MECHANICAL PROPERTIES THANKS TO THE USE OF LANTHANE, AND FERROUS ALLOYS OBTAINED BY THIS PROCESS |
EP0011365A1 (en) * | 1978-10-02 | 1980-05-28 | W.A. TYZACK & COMPANY LIMITED | Agricultural mould-boards and method for manufacturing same |
US4806304A (en) * | 1983-05-09 | 1989-02-21 | Daido Tokushuko Kabushiki Kaisha | Free cutting steel |
JPS6223970A (en) * | 1985-07-24 | 1987-01-31 | Nippon Steel Corp | Continuously cast low-carbon sulfur-lead free-cutting steel |
US4786466A (en) * | 1987-02-19 | 1988-11-22 | Frema, Inc. | Low-sulfur, lead-free free machining steel alloy |
JP2671086B2 (en) * | 1992-09-22 | 1997-10-29 | 新日本製鐵株式会社 | Low carbon sulfur free cutting steel by continuous casting method |
-
1996
- 1996-10-25 IT IT96MI002219A patent/IT1286045B1/en active IP Right Grant
-
1997
- 1997-10-16 PT PT97203234T patent/PT838534E/en unknown
- 1997-10-16 EP EP97203234A patent/EP0838534B1/en not_active Expired - Lifetime
- 1997-10-16 SI SI9730207T patent/SI0838534T1/en unknown
- 1997-10-16 ES ES97203234T patent/ES2160891T3/en not_active Expired - Lifetime
- 1997-10-16 AT AT97203234T patent/ATE203282T1/en not_active IP Right Cessation
- 1997-10-16 DE DE69705691T patent/DE69705691T2/en not_active Expired - Fee Related
- 1997-10-16 DK DK97203234T patent/DK0838534T3/en active
-
2001
- 2001-10-08 GR GR20010401695T patent/GR3036834T3/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
SI0838534T1 (en) | 2001-12-31 |
EP0838534B1 (en) | 2001-07-18 |
DE69705691D1 (en) | 2001-08-23 |
GR3036834T3 (en) | 2002-01-31 |
EP0838534A1 (en) | 1998-04-29 |
ITMI962219A1 (en) | 1998-04-25 |
PT838534E (en) | 2001-12-28 |
DE69705691T2 (en) | 2002-07-04 |
IT1286045B1 (en) | 1998-07-07 |
ATE203282T1 (en) | 2001-08-15 |
DK0838534T3 (en) | 2001-11-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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