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1.发明授权VERFAHREN UND VORRICHTUNG ZUR ENDMASSNAHEN VERFORMUNG VON DRAHT- UND STABFÖRMIGEM VORMATERIAL 有权的方法和设备用于成形的最终尺寸线材和棒材形原材料
公开(公告)号：EP1812609B1
公开(公告)日：2017-03-01
申请号：EP05789611.0
申请日：2005-09-13
申请人： C.D. Wälzholz GmbH
发明人： JUNIUS, Hans-Toni , HÖFINGHOFF, Heinz , BRACHTHÄUSER, Norbert , BLINOV, Victor , KAWALLA, Rudolf
CPC分类号： C21D8/065 , B21B1/166 , B21B1/18 , B21B45/004 , B21B45/0224 , B21B45/023 , B21B2045/006 , C21D9/525 , C21D9/5732 , C21D9/62
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3.发明公开MIKROLEGIERTER KOHLENSTOFFSTAHL ALS TEXTURGEWALZTER BANDSTAHL INSBESONDERE FÜR FEDERELEMENTE 有权微碳钢作为纹理轧制带钢尤其用于弹簧元件
公开(公告)号：EP2401413A2
公开(公告)日：2012-01-04
申请号：EP10712882.9
申请日：2010-02-25
申请人： C.D. Wälzholz GmbH
IPC分类号： C22C38/04
摘要： The invention relates to a cold-rolled carbon steel comprising (in % by weight) 0.75 – 0.85% C, max. 0.40% Si, 0.20 – 0.90% Mn, max. 0.035% P, max. 0.035% S, max. 0.060% Al, max. 0.40% Cr, 0.003 – 0.010% N, preferably 0.005 – 0.008%, at least one micro-alloying element having a content of no more than 0.12%, the remainder being iron and steel production-related contaminations. Possible micro-alloying elements are Ti, Nb, V and optionally Zr. A carbon steel of said type is cold-rolled into a texture-rolled steel strip with a high cold reduction degree and can be used in particular as a material for coiling springs or other components having spring properties.
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4.发明授权MIKROLEGIERTER KOHLENSTOFFSTAHL ALS TEXTURGEWALZTER BANDSTAHL INSBESONDERE FÜR FEDERELEMENTE 有权微碳钢作为纹理轧制带钢尤其用于弹簧元件
公开(公告)号：EP2401413B1
公开(公告)日：2016-11-30
申请号：EP10712882.9
申请日：2010-02-25
申请人： C.D. Wälzholz GmbH
IPC分类号： C22C38/04
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5.发明公开KALTGEWALZTES SCHMALBAND IN FORM VON FLACHDRAHT ODER PROFILEN AUS EINEM HOCHFESTEN STAHL FÜR DEN EINSATZ IN FLEXIBLEN ROHREN, INSBESONDERE IN FLEXIBLEN ROHREN FÜR OFFSHORE-ANWENDUNGEN SOWIE VERFAHREN ZUR HERSTELLUNG DERARTIGER KALTGEWALZTER SCHMALBÄNDER 审中-公开冷轧窄带扁平线的形式或型材高强度钢制成FOR USE IN软管，尤其是在对海上应用和方法的软管制造这种冷轧窄腰带
公开(公告)号：EP3021991A2
公开(公告)日：2016-05-25
申请号：EP14750684.4
申请日：2014-07-16
申请人： C.D. Wälzholz GmbH
IPC分类号： B21C37/04 , B21C1/02 , B22D11/124 , C21D1/22 , C22C38/04 , C22C38/06 , C22C38/08 , C22C38/12 , F16L11/08
摘要： The invention relates to a flat wire or a narrow strip having a profiled cross-section made of a high-strength steel having the following composition (in weight percent): C 0.2 - 0.9%, Mn 12 - 25%, Si up to 0.5%, Al 0.5 - 2.0%, Cr 1.80 - 3.5%, S max. 0.005%, P max. 0.06%, N max. 0.1%, Mo max. 1.5%, B max. 0.01%, Ni max. 2.0%, Cu max. 2.0%, Ca max. 0.015%, Nb 0.02 - 0.35%, and/or V 0.02 - 0.35%, and optionally Ti 0.01 - 0.35%, and, as the remainder, iron and unavoidable, production-related impurities, cold-rolled and/or cold-profiled from wire-shaped starting material having optional intermediate annealing and/or optional final annealing treatment in order to achieve the following mechanical values: R
p0.2 500 - 1650 MPa, R
m 750 - 1800 MPa, A80 3 - 50%, for the production of reinforcing layers in flexible pipes for petroleum and natural gas extraction and for the transport of liquefied gas (FLNG) with acid-gas conditions (acidic corroding media). The invention further relates to a method for producing corresponding flat wires or narrow strips.-
6.发明授权
公开(公告)号：EP1948834B1
公开(公告)日：2009-12-09
申请号：EP06828499.1
申请日：2006-10-31
发明人： KAISER, Werner , HÖFINGHOFF, Heinz , JUNIUS, Hans-Toni , HELLMANN, Michael , EBNER, Peter , LOCHNER, Heribert
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