SI9800030A - Cold forming steel - Google Patents

Cold forming steel Download PDF

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Publication number
SI9800030A
SI9800030A SI9800030A SI9800030A SI9800030A SI 9800030 A SI9800030 A SI 9800030A SI 9800030 A SI9800030 A SI 9800030A SI 9800030 A SI9800030 A SI 9800030A SI 9800030 A SI9800030 A SI 9800030A
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SI
Slovenia
Prior art keywords
ppm
preferential
range
wide range
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Prior art date
Application number
SI9800030A
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Slovenian (sl)
Inventor
Bertrand Remi
Jacques Adrien
Original Assignee
Thyssen France Sa
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9503484&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=SI9800030(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Thyssen France Sa filed Critical Thyssen France Sa
Publication of SI9800030A publication Critical patent/SI9800030A/en

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    • 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
    • C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium 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
    • C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium 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
    • C22C38/26—Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
    • 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
    • C22C38/28—Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium

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  • 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)
  • Polishing Bodies And Polishing Tools (AREA)
  • Heat Treatment Of Articles (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Forging (AREA)

Abstract

The applied invention refers to a cold forming type of steel exhibiting excellent abrasion resistance. This steel is obtained by fusion and refining of steel and is characterized by the following weight composition of the alloy: carbon - preferential range 1 - 1,20%, wide range 0,80 - 1,50%; manganese - preferential range 0,30 - 0,50%, wide range less than 1%; silicon - preferential range 0,80 - 1%, wide range less than 1%; phosphorus - preferential range less or equal to 0,020%, wide range less or equal to 0,030%; sulphur - preferential range less or equal to 0,005%, wide range less or equal to 0,005%; chromium - preferential range 8 - 8,50 %, wide range 6,25 - 9%; nickel - preferential range less than 0,30%, wide range less than 0,50%; molibdenium - preferential range 2 - 2,30%, wide range 1,80 - 3%; aluminium - preferential range less than 200 ppm, wide range less than 0,15%; vanadium - preferential range 0,20 - 0,40%, wide range 0,20 - 0,40%; niobium - preferential range 0,60 - 0,90%, wide range 0,60 - 1,5%; nitrogen - preferential range less than 130 ppm, wide range less than 150 ppm; oxygen - preferential range less than 30 ppm, wide range less than 50 ppm; titanium or zirconium - preferential range 500 - 1000 ppm, wide range 500 - 1500 ppm.

Description

THYSSEN FRANCE SATHYSSEN FRANCE SA

Jeklo za hladno oblikovanjeCold forming steel

Predloženi izum se nanaša na jeklo za hladno oblikovanje, ki daje odlično odpornost proti obrabi z abrazijo.The present invention relates to cold forming steel which gives excellent abrasion resistance.

To jeklo dobimo s fuzijo in rafinacijo jekla in je označeno s tem, da ima zlitina naslednjo masno sestavo:This steel is obtained by fusion and refining of the steel, characterized in that the alloy has the following mass composition:

Prednostno območje Priority area Široko območje Wide area ogljik carbon 1 - 1,20% 1 - 1.20% 0,80 - 1,50% 0.80 - 1.50% mangan manganese 0,30 - 0,50% 0.30 - 0.50% < 1% <1% silicij silicon 0,80 - 1% 0.80 - 1% < 1% <1% fosfor phosphorus £ 0,020% £ 0,020% s 0,030% s 0.030% žveplo sulfur s 0,005% s 0,005% s 0,005% s 0,005% krom chrome 8 - 8,50% 8 - 8,50% 6,25 - 9% 6.25 - 9% ni kelj it's not kale < 0,30% <0,30% < 0,50% <0,50% molibden molybdenum 2 - 2,30% 2 - 2.30% 1,80 - 3% 1.80 - 3% aluminij aluminum < 200 ppm <200 ppm < 0,15% <0,15% vanadij vanadium 0,20 - 0,40% 0.20 - 0.40% 0,20 - 0,40% 0.20 - 0.40% niobij niobium 0,60 - 0,90% 0.60 - 0.90% 0,60 - 1,5% 0.60 - 1.5% dušik nitrogen < 130 ppm <130 ppm <150 ppm <150 ppm kisik oxygen < 30 ppm <30 ppm < 50 ppm <50 ppm titan ali titanium or cirkonij zirconium 500-1000 ppm 500-1000 ppm 500-1500 ppm 500-1500 ppm

Ostalo je železo in nečistoče, značilne pri proizvodnji kovin.The rest is iron and impurities typical of metal production.

To jeklo obdelamo z električno fuzijo in nato z rafiniranjem v grelni ponvi, razplojevanjem v vakuumu in ponovnim pretaljevanjem.This steel is treated with electric fusion and then refined in a heating pan, vacuumed and re-melted.

V navedenem jeklu ogljik in niobij tvorita niobijev karbid, titan ali cirkonij pa dajeta prednost tvorbi idiomorfnega niobijevega karbida. Stehiometrično razmerje za tvorbo niobijevega karbida je približno 1% niobija za 0,12% ogljika. Prebitek ogljika uravnotežimo z vsebnostjo kroma, molibdena in vanadija v jeklu.In said steel, carbon and niobium form niobium carbide, and titanium or zirconium favors the formation of idiomorphic niobium carbide. The stoichiometric ratio for niobium carbide formation is approximately 1% niobium for 0.12% carbon. Carbon balance is balanced by the content of chromium, molybdenum and vanadium in steel.

Jeklo v smislu izuma ima trdoto večjo od 60 HRc. Ima naslednje kvalitete: odpornost proti abrazivni obrabi, obdelovalnost in žilavost, ki do sedaj še niso bile dosežene.The steel of the invention has a hardness greater than 60 HRc. It has the following qualities: abrasion resistance, machinability and toughness that have not yet been achieved.

Zilavost določimo z meritvijo v skladu s preiskusom po Charpy-ju. Referenčni preizkušanec 7x10x55 mm obdelamo pri 1050°C, ugasimo v olju, nato pa popuščamo 2 uri pri 560°C. Za trdoto, ki je večja ali enaka 60 HRc, ima utržno energijo enako ali večjo od 40 J.The toughness is determined by measuring according to the Charpy test. The reference specimen 7x10x55 mm was treated at 1050 ° C, quenched in oil, then allowed to stand at 560 ° C for 2 hours. For hardness greater than or equal to 60 HRc, the market energy is equal to or greater than 40 J.

Hladno oblikovno jeklo v smislu izuma izboljša odpornost proti obrabi, ki je v naslednjih treh oblikah:Cold forming steel according to the invention improves wear resistance, which takes the following three forms:

- abrazivna obraba, očitno izboljšana- Abrasive wear, obviously improved

- obraba z luščenjem, očitno izboljšana na osnovi odlične žilavosti jekla- flaking wear, obviously improved on the basis of the excellent toughness of the steel

- obraba z adherenco, tudi odlično izboljšana.- Adherence wear, also perfectly improved.

Predloženi izum ni omejen le z opisano in prikazano izvedbo, temveč pokriva tudi vse možne variante.The present invention is not only limited to the described and illustrated embodiment, but also covers all possible variants.

ZaFor

THYSSEN FRANCE SA:THYSSEN FRANCE SA:

Claims (2)

PATENTNI ZAHTEVKIPATENT APPLICATIONS 1. Jeklo za hladno oblikovanje, dobljeno s fuzijo in rafinacijo zlitine, označeno s tem, da ima zlitina naslednjo masno sestavo:1. Cold forming steel obtained by fusion and refining of an alloy, characterized in that the alloy has the following mass composition: ogljik carbon 0,80 -1,50% 0.80 -1.50% mangan manganese < 1% <1% silicij silicon < 1% <1% fosfor phosphorus < 0,030% <0.030% žveplo sulfur < 0,005% <0,005% krom chrome 6,25 - 9% 6.25 - 9% nikelj nickel < 0,50% <0,50% molibden molybdenum 1,80-3% 1.80-3% aluminij aluminum < 0,15% <0,15% vanadij vanadium 0,20 - 0,40% 0.20 - 0.40% niobij niobium 0,60 -1,5% 0.60 -1.5% dušik nitrogen < 150 ppm <150 ppm
kisik < 50 ppm titan ali cirkonij 500-1500 ppm pri čemer je ostalo železo in nečistoče, značilne pri proizvodnji kovin.oxygen <50 ppm titanium or zirconium 500-1500 ppm leaving iron and impurities characteristic of metal production. 2. Jeklo po zahtevku 1, označeno s tem, da ima zlitina naslednjo masno sestavo:Steel according to claim 1, characterized in that the alloy has the following mass composition: ogljik carbon 1 -1,20% 1 -1.20% mangan manganese 0,30 - 0,50% 0.30 - 0.50% silicij silicon 0,80 -1% 0.80 -1% fosfor phosphorus < 0,020% <0,020% žveplo sulfur < 0,005% <0,005% krom chrome 8 - 8,50% 8 - 8,50% nikelj nickel < 0,30% <0,30% molibden molybdenum 2 - 2,30% 2 - 2.30% aluminij aluminum < 200 ppm <200 ppm vanadij vanadium 0,20 - 0,40% 0.20 - 0.40%
niobij 0,60 - 0,90% dušik < 130 ppm kisik < 30 ppm titan ali cirkonij 500-1000 ppm pri čemer je ostalo železo in nečistoče, značilne pri proizvodnji kovin.niobium 0.60-0.90% nitrogen <130 ppm oxygen <30 ppm titanium or zirconium 500-1000 ppm leaving behind iron and impurities characteristic of metal production.
SI9800030A 1997-02-04 1998-02-04 Cold forming steel SI9800030A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9701459A FR2759092B1 (en) 1997-02-04 1997-02-04 STEEL FOR COLD FORMING

Publications (1)

Publication Number Publication Date
SI9800030A true SI9800030A (en) 1998-10-31

Family

ID=9503484

Family Applications (1)

Application Number Title Priority Date Filing Date
SI9800030A SI9800030A (en) 1997-02-04 1998-02-04 Cold forming steel

Country Status (18)

Country Link
EP (1) EP0856591B1 (en)
KR (1) KR100487086B1 (en)
CN (1) CN1087038C (en)
AR (1) AR011620A1 (en)
AT (1) ATE203784T1 (en)
AU (1) AU733190B2 (en)
BR (1) BR9800544A (en)
CA (1) CA2226350C (en)
CO (1) CO4930308A1 (en)
DE (1) DE69801241T2 (en)
ES (1) ES2161506T3 (en)
FR (1) FR2759092B1 (en)
HK (1) HK1016657A1 (en)
MY (1) MY117322A (en)
PT (1) PT856591E (en)
SG (1) SG60192A1 (en)
SI (1) SI9800030A (en)
ZA (1) ZA98725B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104532165B (en) * 2014-12-19 2016-12-28 泰州市宏华冶金机械有限公司 A kind of modified form cold roll
CN107937839A (en) * 2017-11-22 2018-04-20 安徽恒利增材制造科技有限公司 A kind of high hardness wear-resisting steel alloy

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3926232A1 (en) * 1988-09-22 1990-03-29 Kloeckner Humboldt Deutz Ag WEAR-RESISTANT ROLL COATING FOR THE ROLLERS OF ROLLING PRESSES AND METHOD FOR CONSTRUCTING THE ROLLING COATING
EP0479832A4 (en) * 1989-06-30 1993-01-07 The Broken Hill Proprietary Company Limited Steel composition for a composite roll and heat treatment thereof
AT393387B (en) * 1989-10-23 1991-10-10 Boehler Gmbh COLD WORK STEEL WITH HIGH PRESSURE STRENGTH AND USE OF THIS STEEL
FR2733096B1 (en) * 1995-04-14 1997-07-04 Crouzet Appliance Controls METHOD FOR CONTROLLING THE SPEED OF AN ELECTRIC MOTOR

Also Published As

Publication number Publication date
KR100487086B1 (en) 2005-07-21
CO4930308A1 (en) 2000-06-27
MY117322A (en) 2004-06-30
EP0856591B1 (en) 2001-08-01
ES2161506T3 (en) 2001-12-01
FR2759092B1 (en) 1999-04-16
CA2226350C (en) 2002-09-10
DE69801241T2 (en) 2002-05-08
ATE203784T1 (en) 2001-08-15
DE69801241D1 (en) 2001-09-06
SG60192A1 (en) 1999-02-22
HK1016657A1 (en) 1999-11-05
CN1200411A (en) 1998-12-02
ZA98725B (en) 1998-08-05
AU5289398A (en) 1998-08-06
KR19980071037A (en) 1998-10-26
PT856591E (en) 2001-12-28
AR011620A1 (en) 2000-08-30
EP0856591A1 (en) 1998-08-05
CN1087038C (en) 2002-07-03
CA2226350A1 (en) 1998-08-04
AU733190B2 (en) 2001-05-10
BR9800544A (en) 1999-09-28
FR2759092A1 (en) 1998-08-07

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