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1. 发明申请

WO2021152455A1 ALUMINIUM ALLOY MULTI-LAYERED BRAZING SHEET MATERIAL FOR FLUXFREE BRAZING 审中-公开
公开(公告)号：WO2021152455A1
公开(公告)日：2021-08-05
申请号：PCT/IB2021/050587
申请日：2021-01-26
申请人： ALERIS ROLLED PRODUCTS GERMANY GMBH
发明人： JACOBY, Bernd , RITZ, Fabian , SCHLEGEL, Arne , KIRKHAM, Steven , SMEYERS, Axel Alexander Maria
IPC分类号： B23K35/02 , B23K35/28 , B32B15/01 , C22C21/02 , C22C21/04
摘要： Described herein is an aluminium alloy multi-layered brazing sheet product for brazing in an inert-gas atmosphere without a flux, comprising a core layer made of a 3xxx alloy comprising 0.20-0.75 wt. % Mg, and provided with a covering clad layer comprising 2-5 wt. % Si on one or both sides of said 3xxx alloy core layer and a Al-Si brazing clad layer comprising 7-13 wt. % Si positioned between the 3xxx alloy core layer and the covering clad layer, wherein the covering clad layer has a thickness X1 and the Al-Si brazing clad layer has a thickness X2 and wherein X2 ≥ 2X1. The invention further relates to the use of an aluminium alloy multi-layered brazing sheet product in a fluxfree controlled atmosphere brazing (CAB) operation to produce a heat exchanger apparatus.

2. 发明申请

WO2017137236A1 ALUMINIUM MULTI-LAYERED BRAZING SHEET PRODUCT AND FLUXLESS BRAZING METHOD 审中-公开
标题翻译：铝多层钎焊板产品和无钎剂钎焊方法
公开(公告)号：WO2017137236A1
公开(公告)日：2017-08-17
申请号：PCT/EP2017/051278
申请日：2017-01-23
申请人： ALERIS ROLLED PRODUCTS GERMANY GMBH
发明人： JACOBY, Bernd , KIRKHAM, Steven , SCHLEGEL, Arne
IPC分类号： B32B15/01 , B23K35/28 , B23K35/02 , C22C21/00 , C22C21/02
CPC分类号： B32B15/016 , B23K35/0238 , B23K35/286 , C22C21/00 , C22C21/02 , C22C21/14 , F28F21/084
摘要： The invention relates to a multi-layered brazing sheet product having an aluminium core alloy layer provided on one or both sides with a brazing clad layer material, and an inter-layer material positioned between the aluminium core alloy layer and at least one of said brazing clad layer materials, wherein the brazing layer material(s) is made from an 4xxx-series aluminium alloy having 5% to 15% Si and up to 3% Mg, and wherein the inter-layer material is made from a 1xxx-series aluminium alloy having a purposive addition of Mg of 0.10% to 2.0%.The invention relates also to the use of the brazing sheet product in a fluxless controlled atmosphere brazing process.
摘要翻译：本发明涉及一种多层硬钎焊片材产品，该多层硬钎焊片材产品具有在一侧或两侧上设置有钎焊包覆层材料的铝芯合金层和位于铝芯合金之间的层间材料层和至少一个所述钎焊包覆层材料，其中所述钎焊层材料由具有5％至15％的Si和至多3％的Mg的4xxx系列铝合金制成，并且其中所述层间材料由有目的地加入0.10％至2.0％的Mg的1xxx系列铝合金制成。本发明还涉及钎焊片材产品在无助焊剂控制气氛钎焊工艺中的用途。

3. 发明申请

WO2019224064A1 FLUX CORED BRAZING PREFORMS 审中-公开
公开(公告)号：WO2019224064A1
公开(公告)日：2019-11-28
申请号：PCT/EP2019/062432
申请日：2019-05-15
申请人： ALERIS ROLLED PRODUCTS GERMANY GMBH
发明人： KIRKHAM, Steven , SCHLEGEL, Arne , JACOBY, Bernd , KRAMER, Lawrence Stevenson
IPC分类号： B23K35/28 , B23K35/30 , B23K35/362 , B23K35/02 , C22C21/02
摘要： The invention relates to a shaped, small diameter brazing preform for brazing components to one another, the preform comprising a length of aluminium-based filler alloy wire having a continuous, uniform cavity in a centre of the preform along its length, and a brazing flux material retained within the cavity, and wherein the aluminium-based filler alloy has a composition comprising, in wt.%, Si 7-14%, Zn 0.5-%, Cu 1.0-2.0%, balance aluminium, and having a liquidus temperature in a range of 560°C to 585°C.

4. 发明申请

WO2017080771A1 FLUXLESS BRAZING METHOD 审中-公开
标题翻译：无流体钎焊法
公开(公告)号：WO2017080771A1
公开(公告)日：2017-05-18
申请号：PCT/EP2016/075155
申请日：2016-10-20
申请人： ALERIS ROLLED PRODUCTS GERMANY GMBH
发明人： SCHLEGEL, Arne , JACOBY, Bernd , KIRKHAM, Steven
IPC分类号： B23K1/00 , B23K1/012 , B23K1/20 , B23K35/28 , B23K35/38 , B23K35/02 , B23K101/14 , B23K103/10 , B23K101/10
CPC分类号： B23K1/0012 , B23K1/012 , B23K1/20 , B23K35/0238 , B23K35/286 , B23K35/383 , B23K2201/10 , B23K2201/14
摘要： The invention relates to a method of manufacturing a heat exchanger, joined by brazing in a controlled atmosphere brazing process, comprising the steps of: (a)providing of the components to be brazed together of which at least one is made from an aluminium alloy brazing sheet product comprising of a core alloy clad on one or both sides with a Al-Si alloy brazingfiller material, the Al- Si alloy brazing filler material has been pre-treated by means of etching with an alkaline or acidic etchant, and wherein the Al-Si alloy brazing filler material has the following composition, consisting of, in wt.%: Si 5% to 15%, Mg 0.10% to 3%, Fe up to 0.8%, Cu up to 0.3%, Mn up to 0.8%, Zn up to 0.25%, Ti up to 0.3%, balance aluminium, (b)assembling the components into an assembly, (c)brazing the assembly without applying brazing flux onto the assembly components, and brazing the whole assembly in a dry inert gas atmosphere at a brazing temperature, and wherein the oxygen content of the dry inert gas atmosphere is less than 35 ppm, and cooling of the brazed assembly.
摘要翻译：本发明涉及一种制造热交换器的方法，所述热交换器通过在受控气氛钎焊工艺中钎焊而连接，所述方法包括以下步骤：（a）提供待钎焊在一起的部件，其至少部分地一种由铝合金钎焊片材产品制成，所述铝合金钎焊片材产品包括在一侧或两侧包覆有铝硅合金钎焊填充材料的芯合金，所述铝硅合金钎焊填充材料已通过碱性蚀刻进行预处理或酸性蚀刻剂，并且其中所述Al-Si合金钎焊填充材料具有以下组成，其包含以重量％计：Si 5％至15％，Mg 0.10％至3％，Fe最高达0.8％，Cu最高至 0.3％，Mn高达0.8％，Zn高达0.25％，Ti高达0.3％，余量为铝，（b）将组件组装成组件，（c）在不将钎焊剂施加到组件上的情况下硬焊组件，将整个组件在钎焊温度下在干燥的惰性气体气氛中钎焊，并且其中，干燥的惰性气体气氛小于35 ppm，并冷却钎焊组件。

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