EP1306457A2 - Acier au chrome - Google Patents

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Publication number
EP1306457A2
EP1306457A2 EP02023592A EP02023592A EP1306457A2 EP 1306457 A2 EP1306457 A2 EP 1306457A2 EP 02023592 A EP02023592 A EP 02023592A EP 02023592 A EP02023592 A EP 02023592A EP 1306457 A2 EP1306457 A2 EP 1306457A2
Authority
EP
European Patent Office
Prior art keywords
slats
vanadium
niobium
titanium
annealing
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
Application number
EP02023592A
Other languages
German (de)
English (en)
Other versions
EP1306457A3 (fr
EP1306457B1 (fr
Inventor
Oskar Dr. Pacher
Gisbert Dipl.-Ing. Kloss-Ulitzka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Stahlwerk Ergste Westig GmbH
Original Assignee
Stahlwerk Ergste Westig GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Stahlwerk Ergste Westig GmbH filed Critical Stahlwerk Ergste Westig GmbH
Publication of EP1306457A2 publication Critical patent/EP1306457A2/fr
Publication of EP1306457A3 publication Critical patent/EP1306457A3/fr
Application granted granted Critical
Publication of EP1306457B1 publication Critical patent/EP1306457B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/26—Methods of annealing
    • C21D1/30—Stress-relieving
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
    • 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
    • C22C38/001—Ferrous alloys, e.g. steel alloys containing N
    • 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
    • C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
    • 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
    • C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/004—Heat treatment of ferrous alloys containing Cr and Ni
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0006—Details, accessories not peculiar to any of the following furnaces
    • C21D9/0025—Supports; Baskets; Containers; Covers
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/02—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for springs

Definitions

  • Stamped parts such as reed blades for weaving machines, spring leaves and membranes are usually made from cold rolled strip and hardened and coated depending on the application.
  • stamped parts In addition to high strength and hardness, such stamped parts have to be high Surface quality, especially low roughness and good flatness have.
  • the vibrating behavior of the fins also determines the frictional wear and can therefore lead to premature failure in the case of slats of small thickness to lead.
  • a slat failure or change requires a shutdown of the Weaving machine and is therefore given the high weaving speeds always associated with a significant loss of production.
  • unfavorable vibration behavior of individual reed lamellas can also occur adversely affect the tissue.
  • DD patent 294 469 therefore proposes the slats arrange a reed in packages and weld them together, to improve the positioning of the slats in relation to each other. However, this does not affect the different vibration behavior and the resulting slat wear.
  • valve leaf and lamella springs can with them internal tensions from punching or cutting into one Noise and lead to undesirable resonance vibrations.
  • the vibration behavior can be characterized very well by the spring constant; it should be high and have a narrow spread.
  • the steel alloy according to the invention is particularly characterized in that it is suitable in the form of cold strip as a material for producing thin lamellae by punching or cutting.
  • the alloy is rust-resistant due to its chrome content, which is of great importance for water jet looms.
  • An alloy with 16 to 18% chromium, 6 to 8% is particularly suitable Nickel, 0.5 to 1.5% manganese, 0.3 to 1.5% silicon, 0.4 to 1% molybdenum, 0.1 to 0.3% carbon, 0.05 to 0.1% nitrogen, 0.002 to 0.006% boron, 0.003 to 0.1% titanium, 0.003 to 0.1% vanadium and 0.001 to 0.05% niobium with a total content of titanium, vanadium and niobium of 0.01 to 0.2%.
  • a relaxation annealing process lasting up to 200 minutes at 180 to 480 has a particularly favorable effect on the development of the mechanical properties, which can be followed by a further annealing step with a duration of 10 to 160 minutes at a temperature of 320 to 480 degrees.
  • the relaxation annealing preferably takes place in the stack under form constraint, ie under a static load.
  • a surface pressure of 0.5 to 30 N / cm 2 preferably of at least 1 N / cm 2 or also at most 10 N / cm 2, is suitable for this.
  • Annealing temperatures of 150 to 480 ° C for the first and 300 to 420 ° C for the second annealing stage are particularly suitable.
  • reed slats have a length of 120 mm and a Thickness of 0.2 mm and a one-sided recess measuring 15 x 8 mm. They are made from cold strip according to the process diagram of FIG. 1 produced by punching or fine cutting. This includes deburring and rounding the edges as well as a check for flatness. ever after how this test turns out, the slats have to go once or twice be straightened in a roller straightening machine before cleaning are usable. Still results after judging twice insufficient flatness is a use of the slats for reasons the quality is no longer possible.
  • Static straightening in the form of a heat treatment can, however, be used for cleaning under tension with a cooling in air to room temperature connect.
  • the slats biased in this way were maintained voltage in two stages in the temperature range from 150 to 480 ° C or 300 to 420 ° C with those shown in Table II Annealing temperatures annealed in individual cases.
  • Lamels with the thickness D given in Table II were punched from cold strip of alloys 1 to 9 and the distortion was measured on 200 pieces each. After a first measurement, a height distortion (bulbous formation of the fins) was found for all alloy variants. An average height difference of 94 to 97% of all samples was found with a value h z > 0.05 mm. Individual slats even showed a height distortion h z > 1 mm. All samples also had a circumferential punch burr.
  • the lamellae were placed in a polyethylene container brought and with a mixture of approx. 8 mm large ceramic Packings, 150 g SiC-Schleipfulver and 4 liters of water with it dissolved thickener and wetting agent. After that the Container closed and 5 hours of rotating shaking exposed. After this treatment, the ridges were complete removed and the edges showed a uniform curve.
  • a commercially available twelve-roller straightening machine was used to eliminate the height distortion used with two driven feed rollers. Using these feed rollers, 200 lamellae of the alloys were made 1 and 6 individually introduced into the straightening roller set of the straightening machine (Experiments 10 and 11). Due to the different immersion depth of the rollers of the straightening roller set, which was varied between 0.3 and 0.1 mm This treatment results in stretching over the elastic range beyond, which relieves internal tensions.
  • 100 slats of thickness D of alloys 1, 2, 3 listed in Table I, 5, 6 and 7 (attempts 12 to 16, 17 to 20, 21 to 22, 27 to 28, 29 to 31, 38 to 39) were prepared in accordance with the pretreatment according to Example 1 and freed from the ridge.
  • the slats were then placed on a base plate with a stop that protrudes 60 mm to the side stacked on top of each other and aligned flush.
  • On the so stacked and aligned slats were one or more steel rails with different weight and placed on the side guide rails prevented from slipping. With the help of the different dead weight the steel rails could the surface pressure F within relative further limits can be varied.
  • the trigger for wear is therefore the different Vibration behavior of individual reed lamellae (with small D). Since that Vibration behavior difficult to test under practical conditions is used to determine the spring constants and their spread Identification of the vibration behavior (Table III).
  • Table II show that the flatness of the invention (% Share with delay) is improved.
  • Table III shows that the spring constants also increase and their scatter (minimum and Maximum values) decreases. This is generally an improvement of the Vibration behavior to look at.
  • Reason reed slats with a higher and more uniform spring constants, i.e. with less scatter, will rub against each other less often during use and thus one cause less fretting.
  • Table III also shows that - in relation to the respective reference value -
  • the spring constant D for all alloys according to the invention increases. This is an advantage because "stiffer" springs / lamellae have more favorable properties have. The increase is explained by the fact that when glowing under form constraint First mechanical stresses are reduced, at the same time but also form fine precipitates in the structure, which increase the effect respective D-value. These excretions probably exist from carbonitrides of different elements.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Child & Adolescent Psychology (AREA)
  • Health & Medical Sciences (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Heat Treatment Of Steel (AREA)
  • Looms (AREA)
  • Laminated Bodies (AREA)
EP02023592A 2001-10-23 2002-10-23 Acier au chrome Expired - Lifetime EP1306457B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10152293 2001-10-23
DE10152293A DE10152293B4 (de) 2001-10-23 2001-10-23 Verwendung einer Chrom-Stahllegierung

Publications (3)

Publication Number Publication Date
EP1306457A2 true EP1306457A2 (fr) 2003-05-02
EP1306457A3 EP1306457A3 (fr) 2003-10-22
EP1306457B1 EP1306457B1 (fr) 2007-12-05

Family

ID=7703451

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02023592A Expired - Lifetime EP1306457B1 (fr) 2001-10-23 2002-10-23 Acier au chrome

Country Status (3)

Country Link
EP (1) EP1306457B1 (fr)
AT (1) ATE380262T1 (fr)
DE (2) DE10152293B4 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006045383A1 (fr) * 2004-10-23 2006-05-04 Stahlwerk Ergste Westig Gmbh Acier chrome martensitique inoxydable
CN113481434A (zh) * 2021-06-21 2021-10-08 邯郸新兴特种管材有限公司 屈服强度125钢级的厚壁超级13Cr无缝钢管及生产方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7130358B2 (ja) * 2017-08-23 2022-09-05 セイコーインスツル株式会社 金属弾性素子およびそれを用いたダイヤフラム

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0750687B1 (fr) * 1995-01-13 1999-09-22 Hitachi Metals, Ltd. Acier inoxydable martensitique haute durete, ayant une bonne resistance a la corrossion par piqures
EP1106705A1 (fr) * 1999-11-30 2001-06-13 Nippon Steel Corporation Acier inoxydable à haute résistance à l'adoucissement par revenu pour disques de frein

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB766971A (en) * 1954-03-27 1957-01-30 Sandvikens Jernverks Ab Improvements relating to corrosion resistant steel springs and spring material
DE1267854B (de) * 1963-09-02 1968-05-09 Stahlwerk Kabel C Pouplier Jun Verwendung eines aushaertbaren Chrom-Nickel-Stahles als Werkstoff fuer Rasierklingen
CH562349A5 (fr) * 1973-11-28 1975-05-30 Saurer Ag Adolph
DD294469A5 (de) * 1990-05-18 1991-10-02 Chemiewerk Coswig,De Verfahren zur vollstaendigen entquickung von alkalilauge, insbesondere kalilauge
JP3032273B2 (ja) * 1990-10-16 2000-04-10 日新製鋼株式会社 高強度スチールベルトの製造方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0750687B1 (fr) * 1995-01-13 1999-09-22 Hitachi Metals, Ltd. Acier inoxydable martensitique haute durete, ayant une bonne resistance a la corrossion par piqures
EP1106705A1 (fr) * 1999-11-30 2001-06-13 Nippon Steel Corporation Acier inoxydable à haute résistance à l'adoucissement par revenu pour disques de frein

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006045383A1 (fr) * 2004-10-23 2006-05-04 Stahlwerk Ergste Westig Gmbh Acier chrome martensitique inoxydable
AT505665B1 (de) * 2004-10-23 2009-03-15 Stahlwerk Ergste Westig Gmbh Rostfreier martensitischer chromstahl
CN113481434A (zh) * 2021-06-21 2021-10-08 邯郸新兴特种管材有限公司 屈服强度125钢级的厚壁超级13Cr无缝钢管及生产方法
CN113481434B (zh) * 2021-06-21 2022-05-31 邯郸新兴特种管材有限公司 屈服强度125钢级的厚壁超级13Cr无缝钢管及生产方法

Also Published As

Publication number Publication date
DE10152293B4 (de) 2004-04-08
ATE380262T1 (de) 2007-12-15
EP1306457A3 (fr) 2003-10-22
EP1306457B1 (fr) 2007-12-05
DE10152293A1 (de) 2003-05-15
DE50211315D1 (de) 2008-01-17

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