CN109072393A - 用于热浸镀设备的构件和用于制造这种构件的方法 - Google Patents
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- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
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- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
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- C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
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Abstract
本发明涉及一种用于热浸镀设备的构件(1、10、20),该构件在热浸镀设备的运行期间与具有液态金属的浸浴池直接接触,并且具有金属基体(2、12),其中,基体(2、12)的表面的至少一个区段设有三层涂层(5),该三层涂层具有直接布置在表面区段上的抗腐蚀的附着层(6)、布置在附着层(6)上的阻挡层(7)以及布置在阻挡层(7)上的陶瓷覆盖层(8)。
Description
技术领域
本发明涉及一种用于热浸镀设备的构件,该构件在热浸镀设备的运行期间与具有熔融金属的浸浴池直接接触,并且具有金属基体。
本发明还涉及一种用于制造用于热浸镀设备的构件、尤其引导辊子或换向辊子或稳定辊子的方法,该构件在热浸镀设备的运行期间与具有熔融金属的浸浴池直接接触。
背景技术
在钢铁工业中已知用于为金属工件、例如金属带材涂覆金属覆层的不同的方法。这些涂镀方法中的一种是热浸,在其中将由在较高温度下熔融的金属或在较高温度下熔融的合金制成的工件完全浸入到具有在低温下熔融的金属或在低温下熔融的合金的熔融的浸浴池中。在从熔融的浸浴池中取出工件时,来自浸浴池的液态金属或液态合金粘着在工件处,并且在冷却时形成固态的金属覆层。热浸例如用于为工件镀铝和镀锌,这还作为热镀铝或热镀锌被人所知。在此,将带状的工件牵引通过具有浸浴池的容器,其中,浸浴池含有熔融状态的铝或锌。带状工件借助于辊子来引导,其中的至少一个辊子、例如换向辊子完全浸入到浸浴池中。因此,用于将带状工件引导通过浸浴池的这种辊子在热浸镀设备的运行中承受强热负荷和腐蚀负荷。
为了使用于热浸镀设备的这种辊子更具有抵抗力且更耐用,例如由JP H06 228724 A已知为辊子基体的辊子区段设有涂层,辊子基体还具有与辊子区段连接的、同轴于辊子区段布置的轴向的两个支承辊颈。例如还由EP 0 245 862 A1、EP 0 927 774 A1、EP 2743 367 A1以及EP 2 145 845 A1已知类似的辊子。
发明内容
本发明的目的在于提高用于热浸镀设备的构件的寿命,该构件在热浸镀设备的运行期间与具有熔融金属的浸浴池直接接触。
该目的通过独立权利要求实现。有利的设计方案尤其在从属权利要求中给出,其可分别单独地或以不同的相互组合呈现本发明的方面。
根据本发明的用于热浸镀设备的、在热浸镀设备的运行期间与具有液态金属的浸浴池直接接触的构件包括金属基体,其中,基体的表面的至少一个区段设有三层涂层,该三层涂层具有布置在表面区段处的抗腐蚀的附着层、布置在附着层处的阻挡层以及布置在阻挡层处的陶瓷覆盖层。
根据本发明,在构件的金属基体处布置有专门的三层涂层,其中,涂层的各层的特性最佳地与相应的应用情况匹配。在此,直接布置在基体处的金属附着层尤其用于使金属阻挡层持久地与基体连接。此外,通过附着层的耐腐蚀性、尤其抗氧化性防止基体腐蚀或氧化。金属阻挡层是化学物质不可穿透的层,其同样防止化学物质到达构件的基体。陶瓷覆盖层非常耐热。此外,陶瓷覆盖层防止例如熔渣部分粘着或附着在构件上。因此改善需用热浸镀设备涂镀的工件的质量,因为没有将压痕或缺陷从构件传递到由此引导的工件上。同时,根据本发明的三层涂层提高了在浸浴池中的构件的寿命,这引起维护方面的积极的成本效应、降低停机时间以及改善设备可用性。此外,相比于相应的常规构件,基体可由成本更有利的材料制成,因为根据本发明的三层涂层在很大程度上防止基体磨损。
根据本发明的构件可用在具有不同金属熔融物的浸浴池中。金属熔融物例如可为由具有混合物的不同的锌合金的熔融物,该混合物诸如为铝、铁、镁、镍、硅、铬和/或稀土。替代地,金属熔融物可为由具有混合物的不同的铝合金的熔融物,该混合物诸如为铁、硅、镍、镁、锌和/或铬。进一步替代地,金属熔融物可为由具有相应的混合物的不同的黄铜合金、锌合金或紫铜合金构成的熔融物。
根据本发明的构件可在新制造期间制成。替代地,构件可以如下方式通过处理已经存在的构件制成,即,为该构件事后设有根据本发明的三层涂层。
根据一有利的设计方案,附着层至少部分地由铁基、镍基、钴基或镍钴基合金制成。附着层尤其可至少部分地由MCrAlY基合金制成,其中,基本元素M为铁、镍或钴。附着层的厚度可在20μm至300μm的范围中,优选地在50μm至200μm的范围中,特别优选地在80μm至120μm的范围中。
根据另一有利的设计方案,阻挡层至少部分地由过渡金属或过渡金属的合金制成。阻挡层尤其可至少部分地由钼、含钼的合金或碳化钼制成。阻挡层的厚度可在100μm至500μm的范围中,优选地在150μm至400μm的范围中,特别优选地在200μm至300μm的范围中。
根据另一有利的设计方案,覆盖层至少部分地由纯氧化物陶瓷或配有稀土的氧化物陶瓷制成。覆盖层尤其可至少部分地由渗有钇的氧化锆制成。覆盖层的厚度可在100μm至500μm的范围中,优选地在150μm至400μm的范围中,特别优选地在200μm至250μm的范围中。
根据另一有利的设计方案,构件构造为辊子,以用于引导引导通过浸浴池的待涂镀的金属带材或使之换向。在此,构件完全浸入浸浴池中。
根据另一有利的设计方案,基体包括辊子区段和与之连接的、同轴于辊子区段布置的轴向的两个支承辊颈,其中,支承辊颈的表面相应至少部分地设有三层涂层,并且其中,辊子本体的侧面设有金属保护层。在此,根据本发明的三层涂层起保护作用地作用于支承辊颈,由此使在用于每个支承辊颈的支承辊颈-支承单元中的磨损明显最小化。金属保护层可至少部分地由钼、含钼的合金或碳化钼制成。
根据另一有利的设计方案,基体包括辊子区段和与之连接的、同轴于辊子区段布置的轴向的两个支承辊颈,其中,在支承辊颈上相应施加有金属套筒。由此延长支承辊颈的寿命。金属套筒可由碳钢(例如C45、C60或C70)或表面硬化钢/调质钢(例如42CrMo4)制成。这种金属套筒尤其在辊子式的构件用在含铝的熔融物中时是有利的。金属套筒可涂镀有根据本发明的三层涂层。附加地,还可为辊子区段涂镀根据本发明的三层涂层。替代地,辊子区段或金属套筒可涂镀有根据本发明的三层涂层。
根据本发明的用于制造用于热浸镀设备的构件、尤其引导辊子或换向辊子的方法,包括以下步骤,其中,该构件在热浸镀设备的运行期间与具有液态金属的浸浴池直接接触:
提供金属基体;
将抗腐蚀的附着层施加到基体的至少一个表面区段上;
将阻挡层施加在附着层上;并且
将陶瓷覆盖层施加到阻挡层上。
与该方法相应相关联的是上文针对构件提到的优点。构件尤其可根据上文提到的设计方案或该方案中的至少两个彼此的任意组合在使用根据本发明的方法的情况下制成。
根据一有利的设计方案,附着层和阻挡层相应通过热喷涂或动力喷涂来施加。在此,附着层可通过喷涂含有铁基、镍基、钴基或镍钴基合金、尤其MCrAlY基合金(其基本元素M为铁、镍或钴)的喷涂添料来施加。此外,附着层可以在20μm至300μm的范围中、优选地在50μm至200μm的范围中、特别优选地在80μm至120μm的范围中的厚度来施加。阻挡层可通过热喷涂或动力喷涂含有过渡金属、尤其钼或由过渡金属构成的合金、尤其含钼的合金或碳化钼的喷涂添料来施加。阻挡层尤其可以在100μm至500μm的范围中、优选地在150μm至400μm的范围中、特别优选地在200μm至300μm的范围中的厚度来施加。
根据另一有利的设计方案,覆盖层通过热喷涂来施加。在此,覆盖层可通过热喷涂含有纯的氧化物陶瓷或渗有稀土的氧化物陶瓷、尤其渗有钇的氧化锆的喷涂添料来施加。覆盖层尤其可以在100μm至500μm的范围中、优选地在150μm至400μm的范围中、特别优选地在200μm至250μm的范围中的厚度来施加。
根据另一有利的设计方案,提供基体,其具有辊子区段和与之连接的、同轴于辊子区段布置的轴向的两个支承辊颈,其中,支承辊颈的表面分别至少部分地设有三层涂层,并且其中,辊子本体的侧面设有金属保护层。与该设计方案相关联的是上文针对构件的相应的设计方案提到的优点。金属保护层可至少部分地由钼、含钼的合金或碳化钼制成。
根据另一有利的设计方案,提供基体,其具有辊子区段和与之连接的、同轴于辊子区段布置的轴向的两个支承辊颈,其中,在支承辊颈上相应施加有金属套筒。与该设计方案相应相关联的是上文针对构件的相应的设计方案提到的优点。
附图说明
下面参考附图根据优选的实施方式示例性地阐述本发明,其中,下文阐述的特征可相应单独地以及以不同的相互组合呈现本发明的方面。其中:
图1以纵向剖视图示出了呈辊子形式的根据本发明的构件的一实施例的示意图;
图2以纵向剖视图示出了呈辊子形式的根据本发明的构件的另一实施例的示意图;并且
图3以纵向剖视图示出了呈辊子形式的根据本发明的构件的另一实施例的示意图。
具体实施方式
图1以纵向剖视图示出了用于未示出的热浸镀设备的根据本发明的构件1的实施例的示意图,其中,构件1在热浸镀设备的运行期间与具有液态金属的浸浴池直接接触。构件1构造为辊子,以用于对被引导通过浸浴池的待涂镀的金属带材进行引导或使之换向。
构件1包括金属基体2,其具有辊子区段3和与之连接的、同轴于辊子区段3布置的轴向的两个支承辊颈4。基体2的辊子区段3设有三层涂层5,该三层涂层具有直接布置在由辊子区段3形成的表面区段处的抗腐蚀的附着层6、布置在附着层6处的阻挡层7以及布置在阻挡层7处的陶瓷覆盖层8。附着层6至少部分地由铁基、镍基、钴基或镍钴基合金制成。阻挡层7至少部分地由过渡金属或过渡金属的合金制成。覆盖层8至少部分地由纯氧化物陶瓷或配有稀土的氧化物陶瓷制成。
图2以纵向剖视图示出了用于未示出的热浸镀设备的根据本发明的构件10的另一实施例的示意图,其中,构件10在热浸镀设备运行期间与具有液态金属的浸浴池直接接触。构件10构造为辊子,以用于对被引导通过浸浴池的待涂镀的金属带材进行引导或使之换向。
构件10包括金属基体12,其具有辊子区段13和与之连接的、同轴于辊子区段13布置的轴向的两个支承辊颈14。支承辊颈14的表面相应设有三层涂层5,该三层涂层具有直接布置在由辊子区段13形成的表面区段处的抗腐蚀的附着层6、布置在附着层处6的阻挡层7以及布置在阻挡层7处的陶瓷覆盖层8。附着层6至少部分地由铁基、镍基、钴基或镍钴基合金制成。阻挡层7至少部分地由过渡金属或过渡金属的合金制成。覆盖层8至少部分地由纯氧化物陶瓷或配有稀土的氧化物陶瓷制成。辊子区段13的侧面设有金属保护层11,其至少部分地由钼、含钼的合金或碳化钼制成。
图3以纵向剖视图示出了用于未示出的热浸镀设备的根据本发明的构件20的另一实施例的示意图,其中,构件20在热浸镀设备运行期间与具有液态金属的浸浴池直接接触。构件20构造为辊子,以用于对被引导通过浸浴池的待涂镀的金属带材进行引导或使之换向。
构件20与图1中示出的实施例的不同之处是,在支承辊颈4上相应施加金属套筒21。金属套筒可由碳钢(例如C45、C60或C70)或表面硬化钢/调质钢(例如42CrMo4)制成。为了避免重复,其余部分参考图1的上文的说明。
附图标记列表
1 构件
2 基体
3 辊子区段
4 支承辊颈
5 三层涂层
6 附着层
7 阻挡层
8 覆盖层
10 构件
11 金属保护层
12 基体
13 辊子区段
14 支承辊颈
20 构件
21 金属套筒
Claims (12)
1.一种用于热浸镀设备的构件(1、10、20),该构件在热浸镀设备的运行期间与具有液态金属的浸浴池直接接触,并且该构件具有金属的基体(2、12),其特征在于,所述基体(2、12)的表面的至少一个区段设有三层涂层(5),该三层涂层具有直接布置在所述表面区段上的抗腐蚀的附着层(6)、布置在所述附着层(6)上的阻挡层(7)以及布置在所述阻挡层(7)上的陶瓷覆盖层(8)。
2.根据权利要求1所述的构件(1、10、20),其特征在于,所述附着层(6)至少部分地由铁基、镍基、钴基或镍钴基合金制成。
3.根据权利要求1或2所述的构件(1、10、20),其特征在于,所述阻挡层(7)至少部分地由过渡金属或过渡金属的合金制成。
4.根据权利要求1至3中任一项所述的构件(1、10、20),其特征在于,所述覆盖层(8)至少部分地由纯氧化物陶瓷或配有稀土的氧化物陶瓷制成。
5.根据权利要求1至4中任一项所述的构件(1、10、20),其特征在于,所述构件为辊子,其用于对被引导通过所述浸浴池的待涂镀的金属带材进行引导或使之换向。
6.根据权利要求5所述的构件(10),其特征在于,所述基体(12)具有辊子区段(13)和与该辊子区段连接的、同轴于所述辊子区段(13)布置的轴向的两个支承辊颈(14),其中,所述支承辊颈(14)的表面分别至少部分地设有所述三层涂层(5),并且其中,所述辊子区段(13)的侧面设有金属保护层(11)。
7.根据权利要求5所述的构件(20),其特征在于,所述基体(2)具有辊子区段(3)和与该辊子区段连接的、同轴于所述辊子区段(3)布置的轴向的两个支承辊颈(4),其中,在所述支承辊颈(4)上分别施加有金属套筒(21)。
8.一种用于制造用于热浸镀设备的构件(1、10、20)、尤其引导辊子或换向辊子的方法,该构件在所述热浸镀设备运行期间与具有液态金属的浸浴池直接接触,该方法具有以下步骤:
提供金属基体(2、12);
将抗腐蚀的附着层(6)施加到所述基体(2、12)的至少一个表面区段上;
将阻挡层(7)施加在所述附着层(6)上;并且
将陶瓷覆盖层(8)施加到所述阻挡层(7)上。
9.根据权利要求8所述的方法,其特征在于,相应通过热喷涂或动力喷涂施加所述附着层(6)和所述阻挡层(7)。
10.根据权利要求8或9所述的方法,其特征在于,通过热喷涂施加所述覆盖层(8)。
11.根据权利要求8至10中任一项所述的方法,其特征在于,提供所述基体(12),该基体具有辊子区段(13)和与该辊子区段连接的、同轴于所述辊子区段(13)布置的轴向的两个支承辊颈(14),其中,为所述支承辊颈(14)的表面分别至少部分地设有所述三层涂层(5),并且其中,为所述辊子区段(13)的侧面设有金属保护层(11)。
12.根据权利要求8至10中任一项所述的方法,其特征在于,提供所述基体(2),该基体具有辊子区段(3)和与该辊子区段连接的、同轴于所述辊子区段(3)布置的轴向的两个支承辊颈(4),其中,在所述支承辊颈(4)上分别施加金属套筒(21)。
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CN113966407A (zh) * | 2019-05-08 | 2022-01-21 | Sms集团有限公司 | 用于在热浸镀设备的炉鼻的槽侧端部处冲洗溢流室的方法和设备 |
CN113966407B (zh) * | 2019-05-08 | 2023-10-27 | Sms集团有限公司 | 用于在热浸镀设备的炉鼻的槽侧端部处冲洗溢流室的方法和设备 |
CN115151677A (zh) * | 2020-02-27 | 2022-10-04 | 东华隆株式会社 | 熔融金属浴用部件 |
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RU2018135139A (ru) | 2020-05-28 |
KR20180130556A (ko) | 2018-12-07 |
WO2017186461A1 (de) | 2017-11-02 |
RU2018135139A3 (zh) | 2020-05-28 |
US20190153580A1 (en) | 2019-05-23 |
RU2722554C2 (ru) | 2020-06-01 |
EP3449028A1 (de) | 2019-03-06 |
DE102016218947A1 (de) | 2017-11-02 |
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