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    • 3. 发明授权
    • Method of brazing employing bag-group homogeneous microcrystalline
brazing powders
    • 采用袋式均匀微晶钎焊粉末的钎焊方法
    • US4928872A
    • 1990-05-29
    • US319376
    • 1989-03-06
    • Anatol Rabinkin
    • Anatol Rabinkin
    • B23K35/02B23K35/14B23K35/30
    • B23K35/3006B23K35/0233B23K35/0244
    • A brazing process is disclosed for joining two or more metal parts. The metal parts are brazed by interposing between the parts to be joined a brazing paste composed of a homogeneous microcrystalline rapidly solidified alloy powder having a composition consisting essentially of about 15 to 40 weight percent copper, 0 to 32 weight percent zinc, 0 to 24 weight percent cadmium, 0 to 3 weight percent nickel and 0 to 10 weight percent tin, the balance being silver and incidental impurities, and a phase structure such that the largest dimension of any precipitated phase ranges from about 0.01 to 0.1 micrometer, heating the powder to melt the powder, and thereafter cooling the parts to produce a brazed product. The brazing process can be carried out at lower temperatures as compared to prior art processes employing conventional BAg-alloy powders.
    • 公开了用于连接两个或更多个金属部件的钎焊工艺。 金属部件通过在要连接的部件之间插入钎焊膏,该焊膏由均匀的微晶快速固化的合金粉末组成,所述钎焊膏具有基本上由约15至40重量%的铜,0至32重量%的锌,0至24重量% 0-3重量%的镍和0-10重量%的锡,余量为银和偶然杂质,以及相结构,使得任何析出相的最大尺寸范围为约0.01至0.1微米,将粉末加热至 熔化粉末,然后冷却部件以产生钎焊产品。 与使用常规BAg合金粉末的现有技术方法相比,钎焊工艺可以在较低的温度下进行。
    • 5. 发明授权
    • Heat exchanger manufacturing methods and brazing filler metal compositions useful therein, characterized by low nickel leaching rates
    • 热交换器制造方法和在其中有用的钎焊填充金属组合物,其特征在于低镍浸出速率
    • US06749104B2
    • 2004-06-15
    • US09947651
    • 2001-09-06
    • Anatol Rabinkin
    • Anatol Rabinkin
    • B23K3522
    • B23K1/0012B23K35/304B23K2101/14Y10T29/4935
    • Methods for the manufacture of assemblies which included brazed components and in which nickel/chromium-based filler metals are used wherein the manufactured assemblies are characterized by low leaching rates of nickel in water and water-based fluids, are disclosed. More specifically, there are disclosed methods for the manufacture of a heat exchanger or other assembly which method includes a brazing step, as well as a post-brazing conditioning step for treating the heat exchanger or other assembly. The manufactured heat exchangers and other assemblies are particularly useful in the handling of materials intended for human consumption such as water, beverages or food as the manufactured heat exchangers or other assemblies are characterized by reduced leaching rates of nickel into fluids passed through the heat exchanger. Brazing compositions useful in such manufactured assemblies are also described.
    • 公开了用于制造包括钎焊部件并且其中使用镍/铬基填充金属的组件的方法,其中所制造的组件的特征在于在水和水基流体中镍的低浸出速率。 更具体地,公开了用于制造热交换器或其它组件的方法,该方法包括钎焊步骤,以及用于处理热交换器或其它组件的后钎焊调节步骤。 制造的热交换器和其它组件特别可用于处理用于人类消费的材料,例如水,饮料或食品,因为所制造的热交换器或其它组件的特征在于将镍降低到通过热交换器的流体中。 还描述了用于这种制造的组件中的钎焊组合物。
    • 6. 发明授权
    • Iron-chromium base brazing filler metals
    • 铁铬基钎料金属
    • US06656292B1
    • 2003-12-02
    • US10171132
    • 2002-06-13
    • Anatol RabinkinNicholas J. Decristofaro
    • Anatol RabinkinNicholas J. Decristofaro
    • B23K35363
    • B23K35/308B23K35/0233B23K2101/14B23K2103/05Y10T29/4935Y10T29/49393Y10T428/12944Y10T428/12951
    • A plurality of parts are brazed using an iron/chromium brazing filler metal. The parts are preferably composed of stainless steel and the brazed assembly forms a heat exchanger characterized by good corrosion resistance and low rates of leaching of Ni into fluids passing therethrough. The heat exchanger is especially suited for use in processing items intended to be ingested by humans or animals. Leaching rates and corrosion resistance are further enhanced by a post-brazing conditioning step wherein the assembly is heated in an oxygen-containing atmosphere to a temperature ranging from about 150° to 600° C. The preferred iron/chromium brazing filler metal consists essentially of a composition having the formula FeaCrbCocNidMoeWfBgSih wherein the subscripts “a”, “b”, “c”, “d”, “e”, “f”, “g”, and “h” are in atom percent and wherein, “b” ranges from about 5 to 20, “c” ranges from 0 to about 30, “d” ranges from 0 to about 20, “e” ranges from 0 to about 5, “f” ranges from 0 to about 5, “g” ranges from about 8 to 15, “h” ranges from about 8 to 15, and the sum “a”+“b”+“c”+“d”+“e”+“f”+“g”+“h”=100, the balance being incidental impurities present in an amount up to about 1 percent by weight of the total composition.
    • 使用铁/铬钎料金属钎焊多个部件。 部件优选由不锈钢构成,并且钎焊组件形成热交换器,其特征在于具有良好的耐腐蚀性和低的Ni浸出通过其中的流体的速率。 热交换器特别适用于加工人类或动物摄入的物品。 通过后钎焊调节步骤进一步提高浸出率和耐腐蚀性,其中将组合物在含氧气氛中加热至约150℃至600℃的温度。优选的铁/铬钎料填料金属主要由 其中下标“a”,“b”,“c”,“d”,“e”,“f”,“g”和“h”分别为原子百分数,其中,“b”表示的结构式为FeaCrbCocNidMoeWfBgSih “范围为约5至20,”c“为0至约30,”d“为0至约20,”e“为0至约5,”f“为0至约5,”g “的范围为约8至15,”h“的范围为约8至15,和”a“+”b“+”c“+”d“+”e“+”f“+”g“+” h“= 100,余量是以总组合物重量计高达约1重量%的杂质。