CN116234645A - 用于生产多壁管的方法以及多壁管 - Google Patents
用于生产多壁管的方法以及多壁管 Download PDFInfo
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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
- C23C4/06—Metallic material
- C23C4/08—Metallic material containing only metal elements
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- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
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- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/56—Apparatus specially adapted for continuous coating; Arrangements for maintaining the vacuum, e.g. vacuum locks
- C23C14/562—Apparatus specially adapted for continuous coating; Arrangements for maintaining the vacuum, e.g. vacuum locks for coating elongated substrates
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- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/06—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of metallic material
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- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/54—Apparatus specially adapted for continuous coating
- C23C16/545—Apparatus specially adapted for continuous coating for coating elongated substrates
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- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C30/00—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
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- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
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- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
- C23C4/134—Plasma spraying
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- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
- C23C4/137—Spraying in vacuum or in an inert atmosphere
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- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
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- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
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Abstract
本公开内容涉及用于生产多壁管的方法,在该方法中,金属带被卷起以形成多壁管。金属带具有至少一个钢层,并且至少一个焊料层被施加到钢层。焊料层至少部分地由金属组成。根据本公开内容,焊料层通过等离子体涂覆被施加到钢层。
Description
相关申请
本公开内容是要求于2020年8月10日提交的欧洲申请20190256.6的权益的PCT申请,该欧洲申请中的每一个的全部内容通过引用并入本文。
技术领域
本公开内容涉及用于生产多壁管的方法,在该方法中,金属带被卷起以形成多壁管,金属带具有至少一个钢层,并且至少一个焊料层被施加到钢层,并且焊料层至少部分地由金属组成并且优选地至少大体上由金属组成。为了生产金属带,工艺从钢带开始,该钢带形成钢层并且经过对应的涂覆,并且然后被卷起以形成多壁管。本公开内容还涉及具有这种卷起的金属带的多壁管。
背景技术
上面描述的类型的方法在实践中是众所周知的。焊料层的沉积借助于电镀工艺实现。然而,在这种情况下,我们发现通常只有利用含有氰化物的电解液才能达到充分的附着。不言而喻,剧毒氰化物的使用伴随着相当大的缺点。此外,电镀工艺是复杂的且昂贵的,并且需要复杂的工艺参数设置。各个方法步骤(准备电解液、干燥、清洁等)也很耗时。另外,剩余残留物的处理是成问题的。在已知的措施中,为了将铜层施加为焊料层,必须费力地将镍层插入钢层和铜层之间。镍也被归类为对健康有害。在这方面,需要改进。
发明内容
鉴于此,本公开内容所要解决的技术问题是指定上面描述的类型的方法,该方法允许金属带或钢带以简单的、成本低廉的且不太复杂的方式用焊料层涂覆,并且从环境和健康的角度,该方法也具有更少的缺点。本公开内容还解决了指定对应的多壁管的技术问题。
为了解决该技术问题,本公开内容首先教导用于生产多壁管的方法,在该方法中,金属带被卷起以形成多壁管,金属带具有至少一个钢层,至少一个焊料层被施加到钢层,焊料层至少部分地由金属组成并且优选地至少大体上由金属组成,其中,焊料层通过等离子体涂覆被施加到钢层。
钢带或钢层由此作为用于生产根据本公开内容的金属带的起始带或起始层被使用,该钢带或钢层设置有另外的涂层。在焊料层被施加之前,有利地,钢带或钢层被清洁。优选的实施例的特征在于钢带或钢层的待被涂覆的表面借助于等离子体处理被清洁,该优选的实施例在本公开内容的范围内是特别重要的。有利地,该清洁使用下文描述的优选地使用的等离子体涂覆设备来实行。在这种情况下,等离子体射流或等离子体火焰优选地被施加到钢带或钢层的待被清洁的表面。这种清洁方法已经证明在本公开内容的范围内特别地有效。
本公开内容的非常推荐的实施例的特征在于焊料层至少部分地由铜组成。优选地,焊料层完全地由铜组成或者大体上由铜组成。原则上,其他金属也可以被用于焊料层。
在本公开内容的范围内,本公开内容的实施例是特别重要的,在该实施例中,焊料层在没有插入另外的金属层的情况下——特别是在没有插入镍层的情况下——被施加到钢层或钢带,该焊料层特别地是铜层。在这方面,本公开内容基于以下发现:由于根据本公开内容的等离子体涂覆,镍层可以毫无问题地被省略并且仍然可以实现焊料层的充分附着。这具有的优点是还可以避免与镍层相关联的环境缺点。
在本公开内容的范围内,钢层或钢带的厚度为100μm至600μm,特别地为200μm至400μm。根据本公开内容的特别推荐的实施例,焊料层——特别是铜层——通过等离子体涂覆以1μm至50μm、优选地2μm至20μm、并且特别地3μm至10μm的厚度被施加到钢层或钢带。有利地,钢层比焊料层厚,并且特别地,该钢层的厚度是焊料层的至少5倍,优选地至少7倍,并且优选地至少10倍。
在本公开内容的范围内,涂覆或者利用焊料层的涂覆在不使用氰化物的情况下进行,并且也在本公开内容的范围内,涂覆或者利用焊料层的涂覆在不使用镍的情况下进行。在这方面,本公开内容基于以下发现:在实行根据本公开内容的等离子体涂覆的情况下,不利的含有氰化物的电解液可以被完全地省略。本公开内容还基于以下发现:在钢层和焊料层之间或者在钢层和铜层之间,也不需要插入的镍层。因此,本公开内容在健康方面和环境方面具有相当大的优点。
根据本公开内容的方法的特别优选的实施例的特征在于等离子体涂覆在常压或者大气压下实行。本实施例的特点在于简单和低复杂度。然而,也可以在不同的压力条件下,例如在真空中,实行等离子体涂覆。
在本公开内容的范围内,等离子体涂覆以物理气相沉积和/或化学气相沉积实行。等离子体涂覆设备有利地被使用来应用等离子体涂覆。在本公开内容的上下文中,用于焊料层的材料——特别是用于焊料层的铜材料——以粉末的形式被供应在等离子体涂覆设备中。有利地,用于焊料层的材料——特别是用于焊料层的铜材料——在等离子体涂覆设备中被转化为气相,并且然后以焊料层或铜层被沉积在钢层上。本公开内容基于以下发现:焊料层的该等离子体涂覆可以以非常简单的和不太复杂的方式进行,并且最重要的是,能够在不需要插入的镍层的情况下实现焊料层或铜层与钢层的最佳粘附。
根据本公开内容的特别优选的实施例,至少包括焊料层和钢层或钢带的金属带被卷起以形成双壁管,该焊料层被施加到钢层或钢带。原则上,具有两个以上的壁的管也是可能的,并且这种管可以通过对应的卷起来生产。然而,双壁管在本公开内容的范围内是特别优选的。
根据推荐的实施例,钢层或钢带在两个表面上都涂覆有焊料层——特别地涂覆有铜层。在这种情况下,钢层或钢带的两个表面优选地借助于等离子体涂覆被涂覆有焊料层。
在本公开内容的范围内,多壁管——特别是双壁管——的壁层通过加热彼此焊接或接合。根据推荐的实施例,金属带借助于滚筒被卷起或卷在一起。另外,在本公开内容的范围内优选的是,管然后借助于感应炉被加热,因此,焊料层熔化。以这种方式,管的壁可以彼此被焊接并且管对应地被密封。
本公开内容还涉及具有卷起的金属带的多壁管,金属带具有至少一个钢层或至少一个钢带,并且至少一个焊料层借助于等离子体涂覆被施加到钢层或钢带。这特别优选地是双壁管。
本公开内容基于以下发现:利用根据本公开内容的方法可以以非常简单的、成本低廉的且不太复杂的方式生产多壁管或双壁管。有利地,不需要湿化学方法步骤,并且特别地,不需要带有对环境有害的物质的方法步骤。根据本公开内容的方法比从实践中已知的和在前言中解释的方法更简单。可以避免许多附加的和复杂的方法步骤——诸如干燥步骤、清洁步骤和用于对环境有害的物质的处理步骤。诸如氰化物的有毒物质可以被完全省略,并且特别地,在根据本公开内容的方法中不需要镍层的复杂插入。与在前言中描述的已知方法相比,根据本公开内容的方法总体上使用更少的材料,消耗更少的能量,并且因此成本也更低。然而,除了这些方面之外,通过等离子体处理施加的涂覆还具有比实践中已知的涂覆明显地更好的质量。焊料层或铜层可以以极高的均匀度并且以特定设定的厚度被施加。这也显著地改善了层的焊接。总的来说,本公开内容的特点在于多个优点。特别要强调的是简单性、低复杂度和低成本。
附图说明
下面借助于仅示出一个示例性实施例的附图更详细地解释本公开内容。在图中:
图1示意性地示出了金属带在被卷起以形成多壁管之前的立体图,
图2示意性地示出了通过由金属带卷起的双壁管的截面,以及
图3示意性地示出了优选地被使用来实行根据本公开内容的方法的等离子体涂覆设备的示意图。
图中图示了根据本公开内容的用于生产多壁管1的方法。优选地并且在示例性实施例中(特别是参见图2),双壁管1使用根据本公开内容的方法来生产。为此,金属带2被卷起以形成双壁管1。有利地并且在示例性实施例中,金属带具有钢层3或钢带。优选地并且在示例性实施例中,铜的焊料层4被施加到该钢层3。
具体实施方式
在示例性实施例中,钢层的厚度可以为200μm至400μm,并且焊料层4或铜层的厚度可以为3μm至10μm。优选地并且在示例性实施例中,钢层3比焊料层4或铜层厚得多。根据本公开内容,利用焊料层4进行的涂覆在没有如在现有技术中已知的插入镍层的情况下进行。
根据本公开内容,焊料层4或铜层通过等离子体涂覆被施加到钢层3或钢带。有利地,等离子体涂覆在常压或者大气压下实行。在本公开内容的范围内,等离子体涂覆以物理气相沉积进行。
图3示出了适用于根据本公开内容的方法的等离子体涂覆设备5。图3示出了气体供应腔室7和该等离子体涂覆设备5的电极6。在本公开内容的范围内,用于焊料层4的材料——特别是用于焊料层4的铜材料——以粉末的形式被供应到等离子体涂覆设备5中,更具体地,有利地并且在示例性实施例中,该用于焊料层4的材料以粉末的形式通过通道8被供应。优选地并且在示例性实施例中,用于焊料层4的材料——特别是用于焊料层4的铜材料——在等离子体涂覆设备5中被转化为气相并且然后以焊料层4或铜层被沉积在钢层3上。在图3中还可以看到等离子体射流9。
在沉积焊料层4之后,获得在图1中示出的涂覆的金属带2。该金属带2然后优选地借助于滚筒被卷起以形成在图2中示出的双壁管1。在本公开内容的范围内,管1或管1的壁层然后通过加热彼此焊接或接合。有利地,该加热在感应炉(未示出)中进行。
根据本公开内容的多壁管或双壁管1的生产可以有利地在不使用含有氰化物的电解液的情况下实行,并且也可以有利地在焊料层4和钢层3之间不插入镍层的情况下进行。
Claims (15)
1.一种用于生产多壁管的方法,在所述方法中,金属带被卷起以形成所述多壁管,所述金属带具有至少一个钢层,并且至少一个焊料层被施加到所述钢层,所述焊料层至少部分地由金属组成并且优选地至少大体上由金属组成,
其特征在于,
所述焊料层通过等离子体涂覆被施加到所述钢层。
2.根据权利要求1所述的方法,其中,所述焊料层至少部分地由铜组成,并且优选地,由铜组成或者大体上由铜组成。
3.根据权利要求1或2中任一项所述的方法,其中,所述焊料层在没有插入另外的金属层的情况下,特别是在没有插入镍层的情况下,被施加到所述钢层,所述焊料层特别地是铜层。
4.根据权利要求1至3中任一项所述的方法,其中,所述钢层的厚度为100μm至600μm,特别地为200μm至400μm。
5.根据权利要求1至4中任一项所述的方法,其中,所述焊料层通过等离子体涂覆以1μm至50μm、优选地2μm至20μm、特别地3μm至10μm的厚度被施加到所述钢层,所述焊料层特别地是所述铜层。
6.根据权利要求1至5中任一项所述的方法,其中,所述钢层比所述焊料层厚,并且特别地,所述钢层的厚度是所述焊料层的至少5倍,优选地至少7倍,并且优选地至少10倍。
7.根据权利要求1至6中任一项所述的方法,其中,在不使用氰化物和/或不使用镍的情况下施加所述涂覆。
8.根据权利要求1至7中任一项所述的方法,其中,所述等离子体涂覆在常压或者大气压下实行。
9.根据权利要求1至8中任一项所述的方法,其中,所述等离子体涂覆以物理气相沉积和/或以化学气相沉积实行。
10.根据权利要求1至9中任一项所述的方法,其中,用于所述焊料层的材料以粉末的形式被供应在等离子体涂覆设备中,所述用于所述焊料层的材料特别是用于所述焊料层的铜材料。
11.根据权利要求1至10中任一项所述的方法,其中,用于所述焊料层的材料在所述等离子体涂覆设备中被转化为气相,并且然后以焊料层或铜层被沉积在所述钢层上,所述用于所述焊料层的材料特别是用于所述焊料层的铜材料。
12.根据权利要求1至11中任一项所述的方法,其中,至少包括所述钢层和所述焊料层的所述金属带被卷起以形成双壁管。
13.根据权利要求1至12中任一项所述的方法,其中,所述钢层在两个表面上都涂覆有所述焊料层,并且优选地,所述钢层借助于等离子体涂覆在两个表面上都涂覆有所述焊料层。
14.根据权利要求1至13中任一项所述的方法,其中,所述多壁管的壁层通过加热彼此焊接或接合,所述多壁管特别地是所述双壁管。
15.一种多壁管,所述多壁管特别地使用根据权利要求1至14中任一项所述的方法生产,所述多壁管具有卷起的金属带,其中,所述金属带具有至少一个钢层和至少一个焊料层,所述至少一个焊料层借助于等离子体涂覆被施加到所述钢层。
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PCT/IB2021/057380 WO2022034505A1 (en) | 2020-08-10 | 2021-08-10 | Method for producing multi-walled tubes, and multi-walled tube |
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KR20230065235A (ko) | 2023-05-11 |
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