CN105392909B - 用于软管、特别是海上应用的软管的由高强度钢制成的扁平线材或型材的形式的经冷轧制的窄带材以及制备所述经冷轧制的窄带材的方法 - Google Patents
用于软管、特别是海上应用的软管的由高强度钢制成的扁平线材或型材的形式的经冷轧制的窄带材以及制备所述经冷轧制的窄带材的方法 Download PDFInfo
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- CN105392909B CN105392909B CN201480040024.8A CN201480040024A CN105392909B CN 105392909 B CN105392909 B CN 105392909B CN 201480040024 A CN201480040024 A CN 201480040024A CN 105392909 B CN105392909 B CN 105392909B
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- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
- F16L11/10—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements not embedded in the wall
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Abstract
本发明涉及扁平线材或窄带材,所述扁平线材或窄带材具有成型横截面并且由具有如下组成(以重量%计)的高强度钢制成0.2‑0.9%的C,12‑25%的Mn,至多0.5%的Si,0.5‑2.0%的Al,1.80‑3.5%的Cr,最多0.005%的S,最多0.06%的P,最多0.1%的N,最多1.5%的Mo,最多0.01%的B,最多2.0%的Ni,最多2.0%的Cu,最多0.015%的Ca,0.02‑0.35%的Nb和/或0.02‑0.35%的V,以及任选的0.01‑0.35%的Ti,并且余量为铁和由制备造成的不可避免的杂质,其由线状原材料冷轧制和/或冷成型并且进行任选的中间退火和/或任选的最终退火处理从而实现如下机械值:Rp0.2500‑1650Mpa,Rm750‑1800Mpa,A80 3‑50%,其用于制备软管中的加筋层,所述软管用于石油开采和天然气开采以及用于具有酸气条件(酸性腐蚀介质)的液化气(FLNG)的输送。本发明还涉及制备相应的扁平线材或窄带材的方法。
Description
本发明涉及根据权利要求1的前序部分的用于软管、特别是海上应用的软管的由高强度钢制成的扁平线材或型材的形式的经冷轧制的窄带材以及根据权利要求12的前序部分的制备所述经冷轧制的窄带材的方法。
软管用于许多不同目的的技术领域并且主要的目的在于引导流体介质(例如水、油、天然气等)并且使其与环境隔离。这种软管受到各种影响,一方面是由于应用领域和应用环境导致的机械负载造成的影响,另一方面是由于待引导流体的物理性能和化学组成造成的影响。
这种软管的一个重要的并且在技术上要求极高的应用领域是所谓的海上应用,其中软管用于海洋应用。软管在此用于引导水和/或例如应当从海底引至海面的侵蚀性液体,例如油或天然气,其中在需要时可以通过相应布局铺设软管从而能够用于至少2500m的水深。这种液体或天然气的输送在较长的路程上进行,因此软管还具有相应的长度并且受到由于其固有重量以及由于由环境作用的力造成的高负载。
这种用于海上应用的软管长期已知并且根据各种标准制造。这种软管通常具有用于接收待输送介质的内部管状软芯,所述软芯引导待输送介质并且与环境密封隔离。所述软芯通常由聚合物材料制得。软芯被一个或多个通常由钢材料制成的加筋层环绕,其中由于必需的柔性,钢材料以卷绕的钢线材或钢带材的形式施用在软芯上。软芯和一个或多个加筋层相对于彼此不相互固定,而是可以以较小程度相对移动,因此改进软管的柔性和弯曲性。加筋层环绕软芯并且一方面保护软芯抵抗来自环境的负载,并且增强软管抵抗在输送、铺设和操作这种软管时的负载。在加筋层的层和/或软芯之间可以额外设置由聚合物材料制成的层。在这种软管的一些构造中还实施软芯的骨架状的增强件,因此能够抵挡由于深海应用中的高的环境压力造成的内芯上的高的压力负载。加筋层由钢线材或钢带材制得,所述钢线材或钢带材在软管的制备中以螺旋状形式环绕软芯。也可以在这种软管上设置不同目的的加筋层,例如作为由并排布置的扁平带材组成的纯增强层,或者作为所谓的形状配合型材,在所述形状配合型材中并排卷绕的钢带材成型并且以机械方式通过适形彼此固定,因此以简单的增强带的形式形成稳定的结合。为此必须预先使待加工的带材相应地成型。当在下文以简化形式提到加筋带时,始终指的是这种软管上的金属增强元件的各种已知的形式,而无论其在软管的各个层中的布置如何,也无论其由加筋层的一个或多个平行的螺旋状卷绕的线束组成的结构如何。
同样可以使用其它材料从而连同金属线材一起进行增强。可以使用组成的层或带来代替管结构的一个或多个金属层,从而减轻软管的重量。
软管通常以单件形式制得,因为其通常需要较长的长度,在制备工艺方面可以由一种原材料制造。因此各个部段的加筋层必须可以以可承受高负载的形式彼此持久焊接,因此加筋层所使用的钢必须具有良好的可焊接性。
这种软管在使用时受到高的静态负载或动态负载。受到动态负载的管需要使用高强度钢。在钢线材或钢带材的端部处需要的焊接位置也必须承受高负载。
由于与液体或包含H2S和/或CO2的气态介质接触以及由于钢层之间冷凝物的形成,因此可能产生腐蚀损坏。此外,从液体或气态介质穿过管状软芯的材料至少进入内部加筋层的不可避免的扩散过程造成受到酸性介质成分的高负载,所述酸性介质成分造成加筋层的高的腐蚀负载。因此在与酸性介质接触的使用中,所使用的钢必须具有对应力裂纹腐蚀和对氢脆化的高抵抗力。拉伸强度大于1000MPa的钢一般不适合或者不太抵抗应力裂纹腐蚀和氢脆化,因此对于该应用排除。
近年来通过扁平制造途径(炼钢厂-来自连续铸造的厚板(矩形形式)或经浇铸的块材-热带材或薄带材-冷带材)以热轧制和冷轧制的带材的形式开发了含锰或含大量锰的奥氏体钢,所谓的TWIP钢(TWIP-孪晶诱发塑性),并且特别用于汽车中的结构部件。这种TWIP钢相对于其它高强度钢的有利性能是热带材中的高的起始强度,在冷成形时高的凝固性和极好的塑性。此外,一些合金概念提供了良好的可焊接性和对氢致裂纹形成的显著改进的抵抗力。
通过EP 2 402 472 A1已知更高强度的可冷成形的钢和相应的扁平钢产品,其作为含大量锰的钢具有特别好的焊接倾向以及TWIP行为。所述钢以板材或带材的形式仅用于车身结构,此外在腐蚀保护方面无需额外的涂层处理。所述钢的制备以常规方式进行,对于较宽的带材尺寸通过常规轧制方法配合之后需要的板材或带材的尺寸。
WO 2012/171530 A1中描述了含大量锰的钢用于海上应用的软管的用途,其中描述了这种钢用于制备由窄带材卷绕的加筋层。该文献中描述的用于软管中的加筋层的钢的基本理念在于,尽可能避免软管的加筋钢中通常使用的昂贵成分铜和镍或减少其含量,从而降低这种合金成分的高成本。因此,虽然所使用的钢合金的成本降低,但是同时也负面影响了钢的性能。此外,合金需要明显更大的硅含量,需要硅含量从而改进耐腐蚀性以及改进钢的可加工性。
因此,本发明的特定实施方案的目的在于,提供具有成型横截面并且由新型高强度钢制成的扁平线材或窄带材,其可以满足用于酸性环境的受到动态负载的软管的所有要求,同时相对于目前常见的高强度钢具有明显更高的屈服极限和拉伸强度和升高的塑性。
通过权利要求1的一定实施方案的特征部分的特征连同前序部分的特征得到根据本发明的目的的解决方案。通过从属权利要求得到本发明的其它有利的实施方案。
本发明涉及扁平线材或窄带材,所述扁平线材或窄带材具有成型横截面并且由具有如下组成(以重量%计)的高强度钢制成
0.2-0.9%,优选0.3-0.6%的C
12-25%,优选16-23%的Mn
至多0.5%,优选0.2-0.5%的Si
0.5-2.0%,优选0.80-1.5%的Al
1.8-3.5%,优选2.0至2.7%的Cr
最多0.005%,优选最多0.003%的S
最多0.06%,优选最多0.035%的P
最多0.1%的N
最多1.5%的Mo
最多0.01%的B
最多2.0%的Ni
至多2.0%的Cu
最多0.015%的Ca
0.02-0.35%的Nb和/或0.02-0.35%的V,优选分别为0.05-0.20%
以及任选的0.01-0.35%的Ti
并且余量为铁和由制备造成的不可避免的杂质,
所述扁平线材或窄带材由线状原材料冷轧制和/或冷成型并且进行任选的中间退火和/或最终退火处理从而实现如下机械值:
Rp0.2 500-1650Mpa,
Rm 750-1800Mpa,
A80 3-50%,
所述扁平线材或窄带材用于制备软管中的加筋层,所述软管用于石油开采和天然气开采以及用于具有酸气条件(酸性腐蚀介质)的液化气(FLNG)的输送。
这种具有成型横截面并且由具有根据本发明的组成的高强度钢制成的扁平线材或窄带材特别适合用于制备软管中的加筋层,所述软管用于石油开采和天然气开采以及用于具有酸气条件(酸性腐蚀介质)的液化气(FLNG)的输送,因为其除了热带材中的高的起始强度之外还具有在冷成形时的高的凝固性和极好的塑性,因此以特别高的程度满足这种扁平线材或窄带材对于相关应用领域的机械要求。此外还表明,根据本发明的高强度钢还具有在使用已知的焊接技术时的良好的可焊接性以及对氢致裂纹形成的显著改进的抵抗力。对氢致裂纹形成的显著改进的抵抗力主要归因于在2-3.5重量%范围内的元素铬的合金化,因为铬与元素碳和氮形成精细分布的碳化铬或氮化铬,所述碳化铬或氮化铬在氢进入时充当捕氢剂并且通过该机制阻止氢致裂纹形成。因此根据本发明的钢特别适合用于如使用软管时通常出现的酸气条件。此外,精细分布的沉积物具有晶粒细化作用,这又降低了开裂敏感性并且改进了可成形性。由于铬的合金化,根据本发明的钢还明显不同于根据WO2012/1717530 A1的钢,根据WO 2012/1717530 A1的钢明确需要更少的铬含量并且铬仅被视为不可避免的伴生元素,然而最高限制于0.15重量%的值。另一个不同之处在于根据本发明的钢的低的硅含量,该硅含量只允许在至多0.5重量%的范围内。为了钢的可加工性,WO 2012/1717530 A1中明确需要显著更高的硅含量,而在根据本发明的钢中硅含量可以限制于较低的值。此外,对于根据本发明的应用,通过根据本发明的钢的加工方式,通过线状原材料以及冷轧制/冷成型实现的机械性能高于目前已知的高强度钢的性能。就高强度钢的在1000和1500MPa之间的Rp0.2值而言,在1100-1700MPa之间的Rm值和在6-25%之间的A80值而言,所述值使得在较小的材料横截面下即可实现由其制得的软管所需的负载能力,或者相反在相同的软管尺寸下可以制得负载能力更高的管。因此当软管具有特别长的长度或者经受特别高的,特别是动态负载时,具有成型横截面并且由高强度钢制成的扁平线材或窄带材特别适合用于制备软管中的加筋层,所述软管用于石油开采和天然气开采以及用于具有酸气条件(酸性腐蚀介质)的液化气(FLNG)的输送。因此,由于易受腐蚀性的改进同样可以显著延长投入使用的软管的通常20年的寿命并且提高可靠性。
特别有利的是,扁平线材或窄带材的高强度钢具有奥氏体结构,特别是还具有TWIP性能。这种结构具有热带材中的高的起始强度,冷成形时的高的凝固性和变形时的极好的塑性,此外还提供良好的可焊接性和对氢致裂纹形成的显著改进的抵抗力。
在第一个实施方案中,具有圆形或扁平或限定的轧制边缘的窄带材的高强度钢可用作增强带从而制备卷绕的加筋层。这种增强带通常用于软管的外层并且由其卷绕的加筋层必须具有相应的移动性从而保证软管的良好柔性,所述柔性也由窄带材的边缘布局决定。在根据本发明的钢的情况下,所述边缘布局可以特别容易地制得并且保证形状稳定。
在另一个实施方案中,具有成型横截面的窄带材的高强度钢可用作形状配合型材,特别是作为加筋带的Z型材,从而制备卷绕的加筋层。由根据本发明的窄带材制得的软管的这种加筋层通常直接设置在软管状引导件上并且也特别满足在软管状引导件的压缩方面的强度性能。除了由于拉力造成的机械影响之外,还会受到在较大的海洋深度下造成的环境压力的负载,并且这种适形连接的Z型材带材(在此也使用其它横截面形状,例如T型材,C型材,K型材,X型材等)应当抵抗外部压力,使得管状引导件不会被不允许地压缩。因此在另一个实施方案中还可想到的是,窄带材的高强度钢用作软管的管状软芯中的骨架。此外在另一个实施方案中,所述窄带材可以用作另一个纵向延伸的元件的横截面相应成形的支架,其中这种纵向延伸的元件例如可以具有金属材料或多组分材料或聚合物材料从而改进强度和浮力。
本发明还涉及制备根据权利要求1所述的具有成型横截面并且由高强度钢制成的扁平线材或窄带材的方法,其中将高强度钢浇铸成棒材或块材,借助热轧制将棒材或块材轧制成在5-30mm之间的线材直径,然后在拉制设备上在一个或多个拉道中在冷状态下以线材的形式拉制成限定的中间直径,然后在一个或多个雕版中将该钢线材冷轧制成最终尺寸和最终形状。所述制备方法的特征在于,整个制备途径在线材条上延伸,即不使用板状或较宽预制带材产品制成的带材,而是在以棒材或块材的形式浇铸钢之后直接将钢热轧制成线状横截面,然后由其出发通过一系列在冷状态下进行的各个拉制加工和冷轧制加工以越来越接近最终形状的方式成形。在此,可以根据加工步骤的进行和需要的强度值在各个冷加工之间进行中间退火和最终退火,通过所述中间退火和最终退火可以针对性地影响和改进需要的机械性能。特别地,在冷状态下进行的各个拉制加工和冷轧制加工以及退火处理的组合可以大大影响组织结构和组织取向,这仅通过冷轧制本身是难以实现的。
通过根据本发明的特别适合用于石油开采和天然气开采的软管的用途的钢合金可以制备经扁平冷轧制的线材和直接由线材制成的经冷轧制的型材。例如可以对在电炉炼钢厂中熔炼的根据本发明的钢合金进行二次冶金后处理,然后在真空设备中脱气并且在连续铸造中浇铸成棒材或块材。然后在加热炉中将直接浇铸或模锻的正方形的棒材加热至约1150℃的温度,并且在轧制线材生产线中轧制成在5-30mm之间的线材直径,并且冷却。然后可以使1至3吨重的轧制线束在混合酸中进行酸洗除锈或机械除锈。然后使无锈的轧制线材在拉制设备上在一个或多个拉道中在冷状态下经受拉制成限定的中间直径。通过拉制钢线材消除线材的椭圆度并且产生预凝固。选择限定的目标直径使其适应最终横截面和冷轧制中希望的宽度。
然后在第一个有利的实施方案中,可以通过将线材扁平轧制成中间尺寸并且进行至少一次退火处理和至少一次冷轧制,从而使经冷拉制的钢线材实现具有圆形或限定的轧制边缘的最终矩形尺寸。这是以相应软管的加筋层中的增强带的形式制备线材/窄带材的途径。
在另一个实施方案中,可以通过在一个或多个雕版中冷拉制成限定的中间轮廓,然后进行至少一次退火并且通过至少一次冷轧制,从而使经冷拉制的钢线材实现成型的最终形状,特别是Z形的或以其它方式成型的最终形状,特别是形状配合型材的轮廓形状。由于在软管制造中产生的适形布置而造成的相互相邻设置的线材/窄带材,所述形状配合型材具有特别高的纵向机械稳定性和横向机械稳定性,并且其尺寸不损坏软管的柔性。在此,除了单个线材/窄带材的强度之外,还存在高精度的横截面形状,因此相互交错的带材可以彼此稳固地固定。在另一个实施方案中,例如对于简单的轮廓横截面,可以直接轧制成最终轮廓而不轧制成中间轮廓。
在另一个实施方案中,在冷轧制成成型的最终形状之后对所产生的线材/窄带材进行任选的退火处理,特别是低应力退火或无应力退火。因此在最后一次成形之后进一步影响所产生的线材/窄带材的机械性能,特别地,退火处理可以充当最终处理从而调节机械值和/或建立固有应力。
在第一个实施方案中,退火处理可以在拉制处理和/或轧制处理之间以罩式退火的方式在线圈中在保护气体下,优选在H2气氛下进行。在此,整个线圈同时退火,这具有能量技术方面的优点。
还可替代性地想到的是,退火处理在拉制处理和/或轧制处理之间以具有传导加热或感应加热的连续方法进行。在此,在穿过相应的加热装置时始终仅局部加热短段的线材/窄带材,因此可以实现目标温度控制和由于退火造成的对结构变化的目标影响,同时还可以造成线材/窄带材的穿过时间的缩短。
在每次热处理中,所实现的温度曲线包括对线材的迅速加热以及加速或受控的冷却,从而在钢中形成最佳的纹理和性能。
还可想到的是,在炼钢厂中对熔体进行冶金学钙处理使其具有最少0.0015%的Ca从而影响非金属夹杂物的夹杂物尺寸和夹杂物形状。所述处理造成精细分布和成形的Ca夹杂物,其相比于粗糙和线状的夹杂物对酸性介质(氢致应力裂纹腐蚀)不敏感。
本发明还描述了根据权利要求1所述的具有成型横截面的扁平线材或窄带材用于软管的用途,所述软管用于石油开采和天然气开采以及用于具有酸气条件(酸性腐蚀介质)的液化气(FLNG)的输送,所述软管具有内部管状导流件以及至少一层设置在导流件中或缠绕在导流件上或上方的螺旋状加筋带,所述加筋带由根据权利要求1所述的具有成型横截面的扁平线材或窄带材的高强度钢制成。
附图显示了使用根据本发明的线材/窄带材的软管的特别优选的实施方案。
附图显示了:
图1-使用根据本发明的线材/窄带材的软管的分层结构,所述软管用于石油开采和天然气开采以及用于具有酸气条件(酸性腐蚀介质)的液化气(FLNG)的输送。
使用根据本发明的钢或根据本发明的窄带材/线材制得的软管1由内部管状内管3组成,所述管状内管3具有纵向延伸的开口2用于引导流体,例如液体或气体。管状内管3通常由聚合物材料制成并且密封纵向延伸的开口2,因此使待引导的流体与环境隔离。
管状内管3由多个聚合物层以及至少两层增强带5和任选的一层(或多层)形状配合型材6围绕。在此,形状配合型材6可以如本文所述以螺旋状形式以小的倾斜角直接卷绕在内管3上。形状配合型材6在此具有这样的横截面,使得由于螺旋状卷绕而造成的相同形状配合型材6或一个或多个其它形状配合型材6的相邻的圈沿着其边缘相互适形地卡住,因此相比于当形状配合型材6仅以简单方式并排设置卷绕的情况形成非常稳定的结合。因此卷绕的形状配合型材6可以显著贡献软管1的强度性能。
在形状配合型材6的层的上方,分别与任选的形状配合型材6的层和其它聚合物层4分离,设置两个增强带5的层,其中形成所述层的增强带5(或并排设置的卷绕的多个增强带5)的边缘可以碰触,而不相互结合地布置。形成所述层的增强带5也以明显更大的倾斜角卷绕。
下文在两个表中给出了根据本发明的扁平线材或窄带材的两种示例性组成以及在其上确定的机械参数值:
合金 | C | Si | Mn | P | S | Al | Cr | N | Ni | V | Nb |
1 | 0.42 | 0.38 | 18.8 | 0.019 | 0.001 | 1.3 | 2.4 | 0.0070 | 0.68 | 0.12 | 0.01 |
2 | 0.35 | 0.36 | 17.5 | 0.016 | 0.001 | 1.2 | 2.5 | 0.0065 | 0.53 | 0.02 | 0.11 |
表1:两种示例合金的化学分析
合金 | Rp0.2(MPa) | Rm(MPa) | Rp/Rm | 断裂伸长A80(%) |
1 | 1146 | 1267 | 0.904 | 16 |
1 | 1037 | 1238 | 0.838 | 18 |
1 | 992 | 1218 | 0.814 | 20 |
2 | 1103 | 1217 | 0.906 | 18 |
2 | 1012 | 1193 | 0.848 | 19 |
2 | 941 | 1176 | 0.800 | 21 |
1 | 1232 | 1430 | 0.862 | 13 |
1 | 1362 | 1567 | 0.869 | 9 |
1 | 1429 | 1664 | 0.859 | 8 |
1 | 1481 | 1718 | 0.862 | 6 |
表2:合金在制成状态下的机械值
附图标记列表
1-软管
2-纵向延伸的开口
3-管状内管
4-聚合物层
5-增强带
6-形状配合型材
Claims (41)
1.扁平线材或窄带材,所述扁平线材或窄带材具有成型横截面并且由具有如下组成的高强度钢制成,以重量%计,
0.2-0.9%的C
12-25%的Mn
至多0.5%的Si
0.5-2.0%的Al
1.8-3.5%的Cr
最多0.005%的S
最多0.06%的P
最多0.1%的N
最多1.5%的Mo
最多0.01%的B
最多2.0%的Ni
最多2.0%的Cu
最多0.015%的Ca
0.02-0.35%的Nb和/或0.02-0.35%的V,以及任选的0.01-0.35%的Ti
并且余量为铁和由制备造成的不可避免的杂质,
所述扁平线材或窄带材由线状原材料冷轧制和/或冷成型并且进行任选的至少一次中间退火和/或任选的最终退火处理从而实现如下机械值:
Rp0.2 500-1650MPa,
Rm 750-1800MPa,
A80 3-50%,
所述扁平线材或窄带材用于制备软管中的加筋层,所述软管用于石油开采和天然气开采以及用于具有酸气条件的液化气的输送,
所述扁平线材或窄带材的高强度钢具有奥氏体结构并具有TWIP性能。
2.根据权利要求1所述的扁平线材或窄带材,其特征在于,C以重量%计为0.3-0.6%。
3.根据权利要求1所述的扁平线材或窄带材,其特征在于,Mn以重量%计为16-23%。
4.根据权利要求1所述的扁平线材或窄带材,其特征在于,Si以重量%计为0.2-0.5%。
5.根据权利要求1所述的扁平线材或窄带材,其特征在于,Al以重量%计为0.80-1.5%。
6.根据权利要求1所述的扁平线材或窄带材,其特征在于,Cr以重量%计为2.0-2.7%。
7.根据权利要求1所述的扁平线材或窄带材,其特征在于,S以重量%计为最多0.003%。
8.根据权利要求1所述的扁平线材或窄带材,其特征在于,P以重量%计为最多0.035%。
9.根据权利要求1所述的扁平线材或窄带材,其特征在于,Nb以重量%计为0.05-0.20%。
10.根据权利要求1所述的扁平线材或窄带材,其特征在于,V以重量%计为0.05-0.20%。
11.根据权利要求1所述的扁平线材或窄带材,其特征在于,所述酸气条件是酸性腐蚀介质。
12.根据权利要求1所述的扁平线材或窄带材,其特征在于,所述液化气是FLNG。
13.根据权利要求1所述的扁平线材或窄带材,其特征在于,高强度钢的Rp0.2值在1000和1500MPa之间。
14.根据权利要求1所述的扁平线材或窄带材,其特征在于,高强度钢的Rm值在1100-1700MPa之间。
15.根据权利要求1所述的扁平线材或窄带材,其特征在于,高强度钢的A80值在6-25%之间。
16.根据权利要求1-15任一项所述的扁平线材或窄带材,其特征在于,具有圆形边缘或限定的轧制边缘的窄带材的高强度钢用作增强带从而制备卷绕的加筋层。
17.根据权利要求1-15任一项所述的扁平线材或窄带材,其特征在于,具有成型横截面的窄带材的高强度钢用作形状配合型材,从而制备卷绕的加筋层。
18.根据权利要求17所述的扁平线材或窄带材,其特征在于,具有成型横截面的窄带材的高强度钢用作加筋带的Z型材,从而制备卷绕的加筋层。
19.根据权利要求1-15任一项所述的扁平线材或窄带材,其特征在于,窄带材的高强度钢用作软管的管状软芯中的骨架。
20.根据权利要求1-15任一项所述的扁平线材或窄带材,其特征在于,窄带材用作用于另一个纵向延伸的元件的在其横截面相应成形的支架。
21.制备根据权利要求1所述的扁平线材或窄带材的方法,其特征在于,将高强度钢浇铸成棒材或块材,借助热轧制将棒材或块材轧制成在5-30mm之间的线材直径,然后在拉制设备上在一个或多个拉道中在冷状态下以线材的形式拉制成限定的中间直径,此后在一个或多个雕版中将该钢线材冷轧制成最终尺寸和最终形状。
22.根据权利要求21所述的方法,其特征在于,对在电炉炼钢厂中熔炼的根据权利要求1中的钢进行二次冶金后处理,在真空设备中脱气并且在连续铸造中浇铸成棒材或块材。
23.根据权利要求21或22所述的方法,其特征在于,在加热炉中将直接浇铸或模锻的棒材加热至约1150℃的温度,并且在轧制线材生产线中轧制成在5-30mm之间的线材直径,然后冷却。
24.根据权利要求23所述的方法,其特征在于,所述棒材是正方形的。
25.根据权利要求21或22所述的方法,其特征在于,经热轧制的钢线材进行酸洗除锈,然后在拉制设备上在一个或多个拉道中在冷状态下拉制成限定的中间直径。
26.根据权利要求25所述的方法,其特征在于,经热轧制的钢线材进行在混合酸中酸洗或机械除锈,然后在拉制设备上在一个或多个拉道中在冷状态下拉制成限定的中间直径。
27.根据权利要求21或22所述的方法,其特征在于,借助将线材扁平轧制成中间尺寸并且进行任选至少一次退火处理和任选至少一次冷轧制,从而使经冷拉制的钢线材实现具有圆形或扁平或限定的轧制边缘的最终矩形尺寸。
28.根据权利要求21或22所述的方法,其特征在于,借助在一个或多个雕版中冷拉制成限定的中间轮廓,然后进行至少一次退火并且通过至少一次冷轧制,从而使经冷拉制的钢线材实现成型的最终形状。
29.根据权利要求28所述的方法,其特征在于,所述成型的最终形状是Z形的或以其它方式成型的最终形状。
30.根据权利要求28所述的方法,其特征在于,所述成型的最终形状是形状配合型材的轮廓形状。
31.根据权利要求28所述的方法,其特征在于,在冷轧制成成型的最终形状之后在400-700℃之间的温度范围内进行退火处理。
32.根据权利要求31所述的方法,其特征在于,所述退火处理是低应力退火或无应力退火。
33.根据权利要求21或22所述的方法,其特征在于,退火处理充当最终处理从而调节机械值和/或建立固有应力。
34.根据权利要求21或22所述的方法,其特征在于,在拉制处理和/或轧制处理之间的退火处理以罩式退火的方式在线圈中在保护气体下进行。
35.根据权利要求34所述的方法,其特征在于,所述保护气体是H2气氛。
36.根据权利要求21或22所述的方法,其特征在于,在拉制处理和/或轧制处理之间的退火处理以具有传导加热的连续方法进行。
37.根据权利要求21或22所述的方法,其特征在于,钢熔体以最少0.0015重量%的Ca含量进行钙处理。
38.根据权利要求21或22所述的方法,其特征在于,退火处理在拉制处理和/或轧制处理之间以具有感应加热的连续方法进行。
39.根据权利要求1所述的具有成型横截面的扁平线材或窄带材用于软管的用途,所述软管用于石油开采和天然气开采以及用于具有酸气条件的液化气的输送,所述软管具有内部管状导流件以及至少一层设置在导流件中或卷绕在导流件上或上方的螺旋状加筋带,所述加筋带由根据权利要求1所述的具有成型横截面的扁平线材或窄带材的高强度钢制成。
40.根据权利要求39所述的用途,其特征在于,所述酸气条件是酸性腐蚀介质。
41.根据权利要求39所述的用途,其特征在于,所述液化气是FLNG。
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Application Number | Priority Date | Filing Date | Title |
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DE102013012118.3 | 2013-07-18 | ||
DE102013012118.3A DE102013012118A1 (de) | 2013-07-18 | 2013-07-18 | 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 |
PCT/DE2014/000370 WO2015007265A2 (de) | 2013-07-18 | 2014-07-16 | 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 |
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CN105392909A CN105392909A (zh) | 2016-03-09 |
CN105392909B true CN105392909B (zh) | 2018-02-27 |
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US (1) | US10378681B2 (zh) |
EP (1) | EP3021991B1 (zh) |
CN (1) | CN105392909B (zh) |
AU (2) | AU2014292565A1 (zh) |
BR (1) | BR112016000406B1 (zh) |
DE (1) | DE102013012118A1 (zh) |
DK (1) | DK3021991T3 (zh) |
MY (1) | MY177659A (zh) |
WO (1) | WO2015007265A2 (zh) |
Families Citing this family (8)
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DE102016010172A1 (de) | 2016-08-18 | 2018-02-22 | C.D. Wälzholz GmbH | Verfahren zum Verschweißen kaltgewalzter Schmalbänder in Form von Flachdraht oder Profilen aus einem TWIP-Stahl sowie kaltgewalztes Schmalband in Form von Flachdraht oder Profilen aus einem TWIP-Stahl, insbesondere für den Einsatz in flexiblen Rohren für Offshore-Anwendungen |
KR20190119089A (ko) * | 2017-03-24 | 2019-10-21 | 닛폰세이테츠 가부시키가이샤 | 선재 및 평강선 |
CN110709528A (zh) * | 2017-04-11 | 2020-01-17 | 蒂森克虏伯钢铁欧洲股份公司 | 经冷轧、罩式退火的扁钢产品及其制造方法 |
CN108330406A (zh) * | 2018-05-17 | 2018-07-27 | 东北大学 | 一种高强度高塑性冷轧中锰钢及其制备方法 |
DK3674425T3 (en) * | 2018-12-31 | 2022-05-23 | Baker Hughes Energy Tech Uk Limited | Stålwire |
CN111270157A (zh) * | 2020-02-28 | 2020-06-12 | 江苏汉唐环保科技有限公司 | 一种金属软管及制备工艺 |
CN111118412B (zh) * | 2020-03-10 | 2021-07-20 | 晟普特(北京)防护科技有限公司 | 一种防弹钢板及其热处理方法 |
CN113275405B (zh) * | 2021-04-23 | 2024-02-06 | 中国科学院合肥物质科学研究院 | 一种twip钢丝直接拉拔成形的方法 |
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CN102985578A (zh) * | 2010-07-02 | 2013-03-20 | 蒂森克虏伯钢铁欧洲股份公司 | 可冷成型的高强度钢以及由这种钢制成的扁钢制品 |
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FR2796083B1 (fr) * | 1999-07-07 | 2001-08-31 | Usinor | Procede de fabrication de bandes en alliage fer-carbone-manganese, et bandes ainsi produites |
DK200001510A (da) | 2000-10-10 | 2000-10-10 | Nkt Flexibles Is | Armeret fleksibel rørledning |
DE102004048443B3 (de) | 2004-10-02 | 2005-12-01 | C.D. Wälzholz-Brockhaus GmbH | Verfahren zur walztechnischen Verformung von draht- und stabförmigem Vormaterial, Vorrichtung zur Durchführung des Verfahrens sowie nach dem Verfahren hergestelltes Flachprofil |
WO2011120525A1 (en) * | 2010-03-31 | 2011-10-06 | Nkt Flexibles I/S | A flexible unbonded pipe and an offshore system |
EP2383353B1 (de) * | 2010-04-30 | 2019-11-06 | ThyssenKrupp Steel Europe AG | Höherfester, Mn-haltiger Stahl, Stahlflachprodukt aus einem solchen Stahl und Verfahren zu dessen Herstellung |
WO2012171530A1 (en) | 2011-06-17 | 2012-12-20 | National Oilwell Varco Denmark I/S | An unbonded flexible pipe |
WO2012171753A1 (en) | 2011-06-17 | 2012-12-20 | Unilever N.V. | Flexible container |
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2013
- 2013-07-18 DE DE102013012118.3A patent/DE102013012118A1/de not_active Withdrawn
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CN102985578A (zh) * | 2010-07-02 | 2013-03-20 | 蒂森克虏伯钢铁欧洲股份公司 | 可冷成型的高强度钢以及由这种钢制成的扁钢制品 |
Also Published As
Publication number | Publication date |
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US10378681B2 (en) | 2019-08-13 |
CN105392909A (zh) | 2016-03-09 |
WO2015007265A2 (de) | 2015-01-22 |
EP3021991A2 (de) | 2016-05-25 |
MY177659A (en) | 2020-09-23 |
AU2018203405A1 (en) | 2018-06-07 |
AU2014292565A1 (en) | 2016-02-04 |
EP3021991B1 (de) | 2020-03-18 |
US20160178093A1 (en) | 2016-06-23 |
DE102013012118A1 (de) | 2015-01-22 |
BR112016000406B1 (pt) | 2020-10-20 |
WO2015007265A3 (de) | 2015-05-14 |
DK3021991T3 (da) | 2020-06-22 |
AU2018203405B2 (en) | 2020-07-09 |
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