CN106794677A - 嵌丝窗玻璃及其制造工艺 - Google Patents

嵌丝窗玻璃及其制造工艺 Download PDF

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CN106794677A
CN106794677A CN201580055754.XA CN201580055754A CN106794677A CN 106794677 A CN106794677 A CN 106794677A CN 201580055754 A CN201580055754 A CN 201580055754A CN 106794677 A CN106794677 A CN 106794677A
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sliver
glass pane
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heater strip
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M·A·张伯伦
L·F·梅勒
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Pilkington Group Ltd
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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/84—Heating arrangements specially adapted for transparent or reflecting areas, e.g. for demisting or de-icing windows, mirrors or vehicle windshields
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
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    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
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    • B32B17/10009—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets
    • B32B17/10036—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising two outer glass sheets
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    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
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    • B32B17/10165—Functional features of the laminated safety glass or glazing
    • B32B17/10293—Edge features, e.g. inserts or holes
    • B32B17/10302—Edge sealing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
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    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10165—Functional features of the laminated safety glass or glazing
    • B32B17/10376—Laminated safety glass or glazing containing metal wires
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10165—Functional features of the laminated safety glass or glazing
    • B32B17/10376—Laminated safety glass or glazing containing metal wires
    • B32B17/10385—Laminated safety glass or glazing containing metal wires for ohmic resistance heating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
    • B32B17/10559—Shape of the cross-section
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    • B32—LAYERED PRODUCTS
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    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
    • B32B17/10761—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing vinyl acetal
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/02—Mechanical actuation
    • G08B13/04—Mechanical actuation by breaking of glass
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    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/84—Heating arrangements specially adapted for transparent or reflecting areas, e.g. for demisting or de-icing windows, mirrors or vehicle windshields
    • H05B3/86—Heating arrangements specially adapted for transparent or reflecting areas, e.g. for demisting or de-icing windows, mirrors or vehicle windshields the heating conductors being embedded in the transparent or reflecting material
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    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
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  • Physics & Mathematics (AREA)
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  • Joining Of Glass To Other Materials (AREA)
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Abstract

公开了嵌丝窗玻璃，其包含中间层材料层片，具有第一导条和辅助导条以及它们之间的加热丝。在该第一导条和该中间层材料层片之间布置胶黏层。在该辅助导条的边缘延伸超出该第一导条的边缘的地方布置辅助胶黏层。该辅助胶黏层将该辅助导条结合至该中间层材料层片。公开了用于制造嵌丝窗玻璃的相应工艺。

Description

嵌丝窗玻璃及其制造工艺
发明背景
本发明涉及包含加热丝的窗玻璃。
在汽车风挡领域众所周知的是提供嵌入两个外层片(通常为玻璃)之间的中间层材料中的细的紧密间隔的加热丝的阵列。
加热丝在两个相对的导条(busbar)之间延伸并与两者电接触，该导条典型地定位邻近窗玻璃的上边缘和下边缘。
EP0385785和EP0385791公开了包含窄金属带材和较宽金属带材的导条，使得加热丝布置在金属带材之间。在制造工艺中，在中间层材料片上方设置窄金属带材。在该窄金属带材上方运行加热的烙铁以局部地熔化该中间层材料并且使该窄金属带材嵌入该中间层材料中。在筒(drum)上放置该中间层材料并且然后在该中间层材料上方设置丝并通过加热的压辊将丝压入该中间层材料中(如在US2009/0206191中公开的)。然后在平坦的台面上设置该中间层材料并且在该窄金属带材上方施加较宽金属带材，使得该较宽金属带材在其两个边缘上延伸超出该窄金属带材。然后在该较宽金属带材上方运行热的烙铁以使该较宽金属带材结合至该中间层材料，并且通过将丝限制在金属带材和该中间层之间以固定丝的端部。然后在第一和第二玻璃层片之间布置该中间层材料并且在加压釜(autoclave)中以已知的方式加热所得的组件。在该加压釜中，中间层软化使得加热丝和金属带材变成完全嵌入该中间层中并因此牢固地固定到位。
为了改进导条组件和加热丝之间的电连接，较宽金属带材可在与该加热丝接触的表面的部分上设有低熔点焊料层。将低熔点焊料定义为在加压釜中熔化并填充加热丝之间的空间的焊料，即具有不大于150℃(加压釜温度最大值)的熔点。在固化时，该低熔点焊料将加热丝稳固地结合到位并且提供在该较宽金属带材和该加热丝之间持久的电连接。可施加相似的低熔点焊料层至该窄金属带材。
EP1110431公开了由在EP0385791中公开的工艺制造的产品具有较低的服役失效率。该改进被认为是由以下所致(a)低熔点焊料固定住加热丝，使得加热丝没有失去与导条的接触，以及(b)低熔点焊料填充加热丝之间的空间，使得阻止水分进入导条组件并因此避免在不同的金属之间电解反应的可能性。
JP2000-030847公开了窗玻璃，其中改进导条和加热丝之间的胶黏并且通过在该导条和该加热丝之间施加传导胶黏剂来在长时间段内维持良好传导性。该传导胶黏剂可为焊料层、丙烯酸硬化胶或环氧系热固化胶。将至少一个导条嵌入中间层材料中。该窗玻璃在剥离测试和30天热循环测试中具有改进的性能。
WO2011023974公开了包含用于加热窗玻璃和导条的传导路径的窗玻璃。可将导条胶合至窗玻璃材料层片以获得良好机械界面。可用低熔点焊料或传导胶黏剂涂覆导条以向该传导路径提供良好的电连接。
US6396026B2公开了包含在热塑性层上的导条的窗玻璃，该导条包含使用胶黏剂固定至该热塑性层的下铜箔带材。在该下铜箔带材上设置加热丝并且在该加热丝上设置上铜箔带材。该下铜箔带材具有先前施加的软焊料层作为可自由进入侧上的锡涂层。通过将焊烙铁施加至该上铜箔带材来进行焊接操作。
仍存在对具有低的服役失效率的包含加热丝的替代性窗玻璃的需求，并且避免至少一个需要加热的烙铁的工艺步骤的相应的制造工艺将是所需的。
发明陈述
根据本发明的第一方面，提供了包含所附于此的权利要求1中列出的特征的窗玻璃。
发明人发现将第一导条结合至中间层材料层片的胶黏层，和将辅助导条结合至中间层材料层片的辅助胶黏层(在该辅助导条的边缘延伸超出该第一导条的边缘的地方布置)，提供该第一导条和该辅助导条的位置控制并且消除窗玻璃中的“焊料污迹(splash)”缺陷。
在使用加热的烙铁的工艺步骤过程中出现的“焊料污迹”缺陷为两种类型：“低熔点焊料污迹”和“锡污迹”。
首先，因为低熔点焊料层流动超出第一导条的边缘所以出现“低熔点焊料污迹”缺陷。出乎预料地，通过胶黏层将该第一导条结合至中间层材料片提供了该第一导条的充分位置控制，在加热的烙铁熔化焊料层以将辅助导条和加热丝的端部固定到位的工艺步骤过程中维持该位置控制。因此避免了在该第一导条上方运行加热的烙铁以局部地熔化该中间层材料并且将该第一导条嵌入该中间层材料中的工艺步骤。出乎预料地，关于窗玻璃的服役失效率或工艺产量，该黏合剂层没有不利影响。
其次，因为锡层流动超出第一导条的边缘所以出现“锡污迹”缺陷。在现有技术中使用锡层来阻止铜的氧化并且如此来使低熔点焊料层的更容易的施加成为可能。典型的加热的烙铁温度高于锡的熔点(232℃)，因此由于该锡层，出现“锡污迹”缺陷。在本发明的优选实施方案中，通过使每个导条经过低熔点焊料浴从而用低熔点焊料层覆盖每个导条的全部表面。在进入浴之前每个导条是清洁的，即没有经历氧化，所以不需要锡层。因此本发明消除了“锡污迹”缺陷。
优选地，该辅助导条的边缘和该第一导条的边缘之间的距离在2mm至5mm范围内。
优选地，该第一导条具有在2mm至8mm，更优选3mm至6mm，最优选4mm至5mm范围内的宽度。
优选地，该辅助导条具有在4mm至12mm，更优选6mm至10mm，最优选8mm至9mm范围内的宽度。
优选地，该第一导条为具有在50μm至200μm，最优选90μm至100μm范围内的厚度的金属，更优选为铜。
优选地，该低熔点焊料层覆盖与该加热丝接触的第一导条的表面的基本上全部或与该加热丝接触的辅助导条的表面的基本上全部，并且焊料层厚度在1μm至50μm，更优选5μm至20μm范围内。
优选地，该低熔点焊料层既覆盖与该加热丝接触的第一导条的表面又覆盖该第一导条的相对表面，或者该低熔点焊料层既覆盖与该加热丝接触的辅助导条的表面又覆盖该辅助导条的相对表面。
优选地，该低熔点焊料层熔点在120℃至150℃，更优选120℃至140℃范围内。
优选地，该胶黏层具有在10μm至100μm，更优选20μm至50μm范围内的厚度。
优选地，加热丝的阵列在第一和第二导条之间延伸并且与两者电接触用于将电力供应至该加热丝的阵列。
优选地，在第一和第二窗玻璃材料层片之间布置该中间层材料层片。
根据本发明的第二方面，提供了用于制造窗玻璃的工艺，其包括所附于此的权利要求13中列出的步骤。
优选地，该工艺还包括以下步骤：在该辅助导条的边缘延伸超出该第一导条的边缘的地方布置辅助胶黏层，用于将该辅助导条结合至该中间层材料层片。
优选地，该工艺还包括以下步骤：定位该辅助导条的边缘和该第一导条的边缘使得它们之间的距离在2mm至5mm范围内。
有利地，由于布置在该第一导条和该中间层材料层片之间的胶黏层，不需要使用加热的烙铁将该第一导条和该辅助导条嵌入该中间层材料层片中的工艺步骤。发明人发现这些使用加热的烙铁的现有技术工艺步骤引起低熔点焊料层流动超出该第一导条的边缘，导致“焊料污迹”缺陷并且因此降低工艺产量。消除这些步骤导致产量改进。
发明人发现当在加压釜内被加热时该低熔点焊料层没有流动超出该第一导条的边缘。认为这是由该中间层材料含有该低熔点焊料所致。
在有利的实施方案中，该工艺包括以下步骤：通过供给该导条穿过低熔点焊料浴从而用低熔点焊料覆盖至少一个导条的全部表面。出乎预料地，发明人发现在对服役性能没有不利影响的情况下该低熔点焊料层直接黏附至该导条。所以不需要锡层，并且因此避免了在制造工艺过程中由锡熔化和流动所致的“锡污迹”缺陷。优选地用低熔点焊料覆盖该第一导条的全部表面。
附图简要说明
现在将参考附图通过非限制性实施例的方式描述本发明。
图1显示从第一导条的端部观察的横截面形式的根据现有技术的窗玻璃。
图2显示从第一导条的端部观察的横截面形式的根据本发明的窗玻璃，该窗玻璃包含在辅助导条的边缘延伸超出第一导条的边缘的区域中用于将该辅助导条结合至中间层材料层片的辅助胶黏层。
图3显示含有加热丝的平面(图4中线A-A)形式的根据本发明的窗玻璃。
图4显示从加热丝的端部观察的横截面(图3中线B-B)形式的根据本发明的窗玻璃。
图5显示根据本发明的优选实施方案的窗玻璃，其中在第一导条的全部表面上用低熔点焊料涂覆该第一导条和辅助导条。
图6显示根据本发明的优选实施方案的窗玻璃，其中在全部表面上用低熔点焊料涂覆第一导条和辅助导条，并且包含在辅助导条的边缘延伸超出该第一导条的边缘的区域中用于将该辅助导条结合至中间层材料层片的辅助胶黏层。
发明详细说明
虽然在这里特别参考汽车风挡来描述本发明，但是应理解其还具有其他车辆窗玻璃(例如后窗或侧窗)的应用。
图1显示根据现有技术的窗玻璃1，其中在中间层材料层片13上方设置第一导条21并且在该第一导条21上方设置加热丝41的阵列。将低熔点焊料层51施加在该第一导条21的面对该加热丝41的表面上。在该加热丝41上方设置辅助导条22。在第一窗玻璃材料层片11上布置该中间层材料13，并且在该辅助导条22上方设置第二窗玻璃材料层片12。
该低熔点焊料层51起到两个作用：首先改进该加热丝和导条之间的电连接，以及其次填充该加热丝41周围的间隙，以便防止水分进入。
在该第一导条21和该中间层材料层片13之间为胶黏层61。该胶黏层61起到提供加热丝41的位置稳定性的作用，其可还通过首先将该第一导条嵌入该中间层材料层片13中以及其次由铺丝装置的筒上加热的压辊将该加热丝41嵌入该中间层材料层片中来实现。
图2显示根据本发明的与图1的窗玻璃1相似的窗玻璃1，其中在该辅助导条22的边缘延伸超出该第一导条21的边缘的地方布置辅助胶黏层62。该辅助胶黏层62将该辅助导条22结合至该中间层材料层片13，从而对该加热丝41提供额外的位置稳定性。
图3显示根据本发明的与图2的窗玻璃1相似的窗玻璃1，其中在该辅助导条22的边缘延伸超出该第一导条21的边缘的地方布置辅助胶黏层62。图3是该加热丝41的平面(即图4的线A-A)的平面图。
图4是图3的窗玻璃1的沿线B-B的横截面。
图5与图1相似，但是该第一导条21在全部表面上设有低熔点焊料层51。
该低熔点焊料层51起到两个作用：首先改进该加热丝和导条21、22之间的电接触，以及其次填充该加热丝41周围的间隙，以便防止水分进入。
任选地该辅助导条22的边缘延伸超出该第一导条21的边缘，使得可使用加热的烙铁来将该辅助导条22嵌入该中间层材料13中，从而固定该辅助导条到位。
图6与图2相似，但是每个导条21、22在全部表面上设有低熔点焊料层51、52。
在图1、图2、图4、图5和图6中，该中间层材料层片13包含第一和第二中间层材料区域13a、13b，其在原始中间层材料层片13和第二窗玻璃材料层片12之间流动，使得该导条21、22和加热丝41嵌入该中间层材料层片13、13a、13b中。在图2和图6中，该辅助胶黏层62限制该第二中间层材料区域13b。因为该中间层材料层片13包含热塑性材料，所以在加压釜中升高的温度和压力下其流动以形成第一和第二中间层材料区域13a、13b。
发明实施例
根据本发明按下列工艺步骤制备窗玻璃。提供中间层材料层片13(例如聚乙烯醇缩丁醛(PVB))。该PVB厚度为0.76mm。在该中间层材料层片13上设置第一和第二导条21、31。该导条包含宽度4mm，厚度100μm的铜带材和基本上覆盖用于接触加热丝41的表面的全部的低熔点焊料层51。在本领域中(例如US2009/0206191)已知的铺线装置的筒上布置该中间层材料层片13。在该第一和第二导条21、31上设置在它们之间延伸的加热丝41。
为了简化该导条的制造工艺，在与用于接触该加热丝41的表面相对的表面上也用低熔点焊料层51涂覆该第一导条21。发明人发现在两个表面上有低熔点焊料层51的第一导条21或辅助导条22适合用于本发明。出乎预料地，结果是与现有技术(其中仅在用于接触加热丝的表面上将低熔点焊料的窄带材施加至导条)相比“焊料污迹”缺陷的减少。
在该第一导条21和该中间层材料层片13之间布置胶黏层61以将它们结合在一起。
在加热丝41的阵列上设置辅助导条22。在该辅助导条22的边缘延伸超出该第一导条21的边缘的地方布置辅助胶黏层62。
在窗玻璃材料层片11上设置该中间层材料层片13。该窗玻璃材料为钠钙硅酸盐浮法玻璃。在该辅助导条22上设置第二窗玻璃材料层片12，从而形成完整的组件。对该完整的组件在其边缘处加压并且然后采用本领域已知的方式除气。将该组件引入加压釜并且以本领域已知的方式在压力下加热。
首先通过目视检查来测试所得的产物并且没有观察到“焊料污迹”缺陷。使用根据国际标准ISO 9227(与现在停止使用的DIN 50021相似)的盐雾测试进一步测试该产物。将盐水喷射至其中放置窗玻璃的腔室中。经由第一和第二导条21、31将电力供应至该加热丝41持续一段时间；然后关闭电力持续一段时间。重复该测试大约七周。使用热成像相机观察该窗玻璃。没有观察到由盐水带来的腐蚀所致的功能损失。

Claims (14)

1.窗玻璃(1)，其包含：
-中间层材料层片(13)
-设置在该中间层材料层片(13)上方的第一导条(21)
-设置在该第一导条(21)上方的至少一个加热丝(41)
-和至少部分地设置在该加热丝(41)上方并且至少部分地设置在该第一导条(21)上方的辅助导条(22)
-其中适合于在加压釜中熔化的焊料层(51,52)覆盖该第一导条(21)或该辅助导条(22)的表面的至少部分，并且布置该焊料层以接触该加热丝(41)
-其中在该第一导条(21)和该中间层材料层片(13)之间布置胶黏层(61)用于将它们结合在一起
其特征在于：
-在该辅助导条(22)的边缘延伸超出该第一导条(21)的边缘的地方布置辅助胶黏层(62)用于将该辅助导条(22)结合至该中间层材料层片(13)。
2.根据权利要求1的窗玻璃，其中该辅助导条(22)的边缘和该第一导条(21)的边缘之间的距离在2mm至5mm范围内。
3.根据前述权利要求中任一项的窗玻璃，其中该第一导条(21)具有在2mm至8mm，优选3mm至6mm，最优选4mm至5mm范围内的宽度。
4.根据前述权利要求中任一项的窗玻璃，其中该辅助导条(22)具有在4mm至12mm，优选6mm至10mm，最优选8mm至9mm范围内的宽度。
5.根据前述权利要求中任一项的窗玻璃，其中该第一导条(21)为具有在50μm至200μm，最优选90μm至100μm范围内的厚度的金属，优选为铜。
6.根据前述权利要求中任一项的窗玻璃，其中该焊料层(51)覆盖与该加热丝(41)接触的第一导条(21)的表面的基本上全部，或者其中该焊料层(52)覆盖与该加热丝(41)接触的辅助导条(22)的表面的基本上全部。
7.根据前述权利要求中任一项的窗玻璃，其中该焊料层(51)既覆盖与该加热丝(41)接触的第一导条(21)的表面又覆盖该第一导条(21)的相对表面，或者其中该焊料层(52)既覆盖与该加热丝(41)接触的辅助导条(22)的表面又覆盖该辅助导条(22)的相对表面。
8.根据前述权利要求中任一项的窗玻璃，其中该焊料层(51,52)具有在1μm至50μm，更优选5μm至20μm范围内的厚度。
9.根据前述权利要求中任一项的窗玻璃，其中该焊料层(51,52)熔点在120℃至150℃，优选120℃至140℃，最优选125℃至135℃范围内。
10.根据前述权利要求中任一项的窗玻璃，其中该胶黏层(61)具有在10μm至100μm，优选20μm至50μm范围内的厚度。
11.根据前述权利要求中任一项的窗玻璃，其中加热丝(41)的阵列在第一和第二导条(21,31)之间延伸并且与两者电接触用于将电力供应至该加热丝(41)的阵列。
12.根据前述权利要求中任一项的窗玻璃，其中在第一和第二窗玻璃材料层片(11,12)之间布置该中间层材料层片(13)。
13.用于制造窗玻璃(1)的工艺，包括以下步骤：
-提供中间层材料层片(13)
-在该中间层材料层片(13)上方设置第一导条(21)
-在该第一导条(21)上方设置至少一个加热丝(41)
-至少部分地在该加热丝(41)上方和至少部分地在该第一导条(21)上方设置辅助导条(22)
-在该第一导条(21)或该辅助导条(22)的表面的至少部分上设置焊料层(51,52)并且布置该焊料层(51,52)以接触该加热丝(41)
-在该第一导条(21)和该中间层材料层片(13)之间布置胶黏层(61)用于将它们结合在一起
其特征在于：
-在该辅助导条(22)的边缘延伸超出该第一导条(21)的边缘的地方布置辅助胶黏层(62)用于将该辅助导条(22)结合至该中间层材料层片(13)。
14.根据权利要求13的用于制造窗玻璃(1)的工艺，其包括以下步骤：定位该辅助导条(22)的边缘和该第一导条(21)的边缘使得它们之间的距离在2mm至5mm范围内。
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RU2666847C1 (ru) 2018-09-12
CN106794677B (zh) 2019-06-04
JP2017534549A (ja) 2017-11-24
WO2016038372A1 (en) 2016-03-17
US20170291398A1 (en) 2017-10-12
EP3191303A1 (en) 2017-07-19

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