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1.发明授权Process for preparing flux suitable for soldering light metals such as aluminum 失效制备适用于焊接轻金属如铝的焊剂的工艺公开(公告)号：US06221129B1
公开(公告)日：2001-04-24
申请号：US09557780
申请日：2000-04-25
IPC分类号： B23K35363
CPC分类号： B23K35/3605 , B23K2103/10
摘要： A flux which contains irreversibly dehydrated K2AlF5, for soldering light metal materials, in particular aluminum. The flux has the advantages of forming a very uniform flux coating on the workpiece or workpieces to be soldered and exhibiting outstanding flow of the solder. An appropriate soldering process, an aqueous flux suspension and preparation processes for the flux are also disclosed.
摘要翻译： 含有不可逆脱水的K2AlF5的焊剂，用于焊接轻金属材料，特别是铝。 助焊剂具有在被焊接的工件或工件上形成非常均匀的焊剂涂层并且显示出优异的焊料流动的优点。 还公开了适当的焊接工艺，水性助焊剂悬浮液和助熔剂的制备方法。
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公开(公告)号：US5759707A
公开(公告)日：1998-06-02
申请号：US726432
申请日：1996-10-04
IPC分类号： B23K1/00 , B23K1/19 , B23K35/02 , B23K35/22 , B23K35/28 , B23K35/36 , B23K35/363 , B23K35/40 , B23K1/20 , B23K7/04
CPC分类号： B23K35/0244 , B23K35/3605 , B23K35/286 , Y10T428/12056 , Y10T428/12063
摘要： Metal structures, e.g. coolers or heat exchangers, can be produced by placing together metal components coated with solder, dipping them into a slurry of a flux, and soldering them by heating. Alternatively, components coated with solder can also be coated with flux, then placed together to form the metal structure and soldered by heating. In this case, however, the flux must be applied so as to adhere securely, and to this end in the prior art the flux has been "glued on" to the metal surface by organic or other binders, which when burned out during the soldering process can produce undesirable exhaust gases or emissions. The present invention discloses a metal component which is provided with a sintered flux coating which adheres without binder. The coating can optionally also contain solder metal or other auxiliaries dispersed therein. The coating is applied, for example, by contacting the metal component with a binder-free slurry of the flux or dry coating the metal component electrostatically, and then heating the coated component while avoiding melting of the flux, so that an adherent sintered flux coating is formed on the metal component. The use of these coated metal components for the production of soldered metal structures and metal structures obtained using such components are also described. Potassium fluoroaluminate flux is particularly advantageously used.
摘要翻译： 金属结构，例如 冷却器或热交换器可以通过将涂覆有焊料的金属组分放置在一起而制成，将它们浸入焊剂的浆料中，并通过加热进行焊接。 或者，涂覆有焊料的部件也可以涂覆有焊剂，然后放置在一起以形成金属结构并通过加热焊接。 然而，在这种情况下，必须施加通量以便牢固地粘合，并且在现有技术中为此目的，助焊剂已经通过有机或其他粘合剂“胶合”到金属表面上，这些粘合剂在焊接期间被烧毁时 过程可能产生不良排气或排放物。 本发明公开了一种金属部件，其具有不粘合剂粘附的烧结助焊剂涂层。 涂层还可以包含分散在其中的焊料金属或其它助剂。 例如，通过使金属组分与焊剂的无粘合剂浆料或静电的金属组分的干涂层接触，然后加热涂覆的组分同时避免焊剂的熔化，从而使粘附的烧结助焊剂涂层 形成在金属部件上。 还描述了使用这些涂覆的金属部件来生产使用这种部件获得的焊接金属结构和金属结构。 氟铝酸钾助焊剂特别有利地使用。
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公开(公告)号：US06264096B1
公开(公告)日：2001-07-24
申请号：US09361523
申请日：1999-07-27
IPC分类号： B23K120
CPC分类号： B23K35/3605 , B23K2103/10
摘要： A flux which contains irreversibly dehydrated K2AlF5, for soldering light metal materials, in particular aluminum. The flux has the advantages of forming a very uniform flux coating on the workpiece or workpieces to be soldered and exhibiting outstanding flow of the solder. An appropriate soldering process, an aqueous flux suspension and preparation processes for the flux are also disclosed.
摘要翻译： 含有不可逆脱水的K2AlF5的焊剂，用于焊接轻金属材料，特别是铝。 助焊剂具有在待焊接的工件或工件上形成非常均匀的焊剂涂层并且显示出优异的焊料流动的优点。 还公开了适当的焊接工艺，水性助焊剂悬浮液和助熔剂的制备方法。
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公开(公告)号：US5985233A
公开(公告)日：1999-11-16
申请号：US948396
申请日：1997-10-10
IPC分类号： B23K35/363 , B23K35/36 , C01F7/54 , B23K35/34
CPC分类号： C01F7/54 , B23K35/3605
摘要： The production of a potassium fluoroaluminate having a low melting point, which can be used as a flux when soldering aluminum. The potassium fluoroaluminate is prepared in an aqueous medium from aluminum hydroxide, hydrogen fluoride and potassium hydroxide in a molar ratio of aluminum:fluorine:potassium of approximately 1:5:2. After drying at 80.degree. C. under vacuum, the resulting potassium fluoroaluminate has a differential scanning calorimetry melting point of about 548.degree. C.
摘要翻译： 生产具有低熔点的氟铝酸钾，其可以在焊接铝时用作焊剂。 氟铝酸钾在水性介质中由氢氧化铝，氟化氢和氢氧化钾以铝：氟：钾的摩尔比为约1:5:2的摩尔比制备。 在80℃真空干燥后，得到的氟铝酸钾的差示扫描量热法熔点约为548℃。
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公开(公告)号：US5980650A
公开(公告)日：1999-11-09
申请号：US590636
申请日：1996-01-24
IPC分类号： B23K1/19 , B23K1/00 , B23K35/36 , B23K35/363 , B23K35/40 , B23K103/10 , C01F7/54
CPC分类号： B23K35/3605 , B23K2203/10
摘要： A flux which contains irreversibly dehydrated K.sub.2 AlF.sub.5, for soldering light metal materials, in particular aluminum. The flux has the advantages of forming a very uniform flux coating on the workpiece or workpieces to be soldered and exhibiting outstanding flow of the solder. An appropriate soldering process, an aqueous flux suspension and preparation processes for the flux are also disclosed.
摘要翻译： 含有不可逆脱水的K2AlF5的焊剂，用于焊接轻金属材料，特别是铝。 助焊剂具有在待焊接的工件或工件上形成非常均匀的焊剂涂层并且显示出优异的焊料流动的优点。 还公开了适当的焊接工艺，水性助焊剂悬浮液和助熔剂的制备方法。
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公开(公告)号：US5434319A
公开(公告)日：1995-07-18
申请号：US220003
申请日：1994-03-30
申请人： Ralf Herkelmann , Werner Rudolph , Ruediger Sander , Alf Schulz
发明人： Ralf Herkelmann , Werner Rudolph , Ruediger Sander , Alf Schulz
IPC分类号： C07C17/10 , C07C17/395 , C07C19/08
CPC分类号： C07C17/10 , C07C17/395
摘要： A method for stabilizing and/or purifying perfluoroalkanes, particularly from perfluoroalkanes which contain polyfluoroalkane by-products from their production process, in which the perfluoroalkanes are stabilized and/or purified by reacting the polyfluoroalkane(s) with fluorine at elevated pressure and temperature, to obtain perfluoroalkanes which are substantially free of polyfluoroalkanes. The method has the advantage that the perfluorination takes place rapidly and without significant formation of by-products or decomposition products.
摘要翻译： 一种稳定和/或纯化全氟烷烃的方法，特别是从其全氟烷烃，其中含有从其制备方法得到的多氟烷烃副产物，其中全氟烷烃在升高的压力和温度下使多氟烷烃与氟反应稳定和/或纯化， 获得基本上不含多氟烷烃的全氟烷烃。 该方法具有以下优点：全氟化快速发生，而不显着形成副产物或分解产物。
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公开(公告)号：US4900867A
公开(公告)日：1990-02-13
申请号：US69094
申请日：1987-07-02
申请人： Bernd Wilkes , Dieter Naumann , Werner Rudolph , Ruediger Sander
发明人： Bernd Wilkes , Dieter Naumann , Werner Rudolph , Ruediger Sander
IPC分类号： C07C311/00 , C07C303/40 , C07C311/02 , C07C311/48
CPC分类号： C07C311/02 , Y02P20/582
摘要： A process for producing N-fluorosulfonamides by reaction of a sulfonamide with fluorine in a solvent mixture of halogenated hydrocarbon an nitrile is described together with new N-fluorosulfonamides which are produced in accordance with this process.
摘要翻译： 根据本方法制备的新的N-氟磺酰胺与卤代烃与腈的溶剂混合物中的磺酰胺与氟反应生产N-氟磺酰胺的方法。
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公开(公告)号：US06350424B1
公开(公告)日：2002-02-26
申请号：US09376340
申请日：1999-08-18
IPC分类号： C01F754
CPC分类号： C01F7/54 , B23K35/3605
摘要： The production of a potassium fluoroaluminate having a low melting point, which can be used as a flux when soldering aluminum. The potassium fluoroaluminate is prepared in an aqueous medium from aluminum hydroxide, hydrogen fluoride and potassium hydroxide in a molar ratio of aluminum:fluorine:potassium of approximately 1:5:2. After drying at 80° C. under vacuum, the resulting potassium fluoroaluminate has a differential scanning calorimetry melting point of about 548° C.
摘要翻译： 生产具有低熔点的氟铝酸钾，其可以在焊接铝时用作焊剂。 氟铝酸钾在水性介质中由氢氧化铝，氟化氢和氢氧化钾以铝：氟：钾的摩尔比为约1:5:2的摩尔比制备。 在80℃真空干燥后，得到的氟铝酸钾的差示扫描量热法熔点约为548℃。
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