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METHOD FOR PRODUCING A PERMANENT UNITED PLATE HEAT EXCHANGE, AND PERMANENT UNITED PLATE HEAT EXCHANGER
METHOD FOR PRODUCING A PERMANENT UNITED PLATE HEAT EXCHANGE, AND PERMANENT UNITED PLATE HEAT EXCHANGER
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机译：生产永久性统一板式换热器的方法以及永久性联合板式换热器
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摘要
The present invention relates to an intermediate product for joining and coating by brazing comprising a base metal and a blend of boron and silicon, said base metal having a solidus temperature above 1040 °C, and the intermediate product has at least partly a surface layer of the blend on the base metal, wherein the boron in the blend is selected from a boron source, and the silicon in the blend is selected from a silicon source, and wherein the blend comprises boron and silicon in a ratio of boron to silicon within a range from about 3:100 wt/wt to about 100:3 wt/wt. The present invention relates also to a stacked intermediate product, to an assembled intermediate product, to a method of brazing, to a brazed product, to a use of an intermediate product, to a pre-brazed product, to a blend and to paint.
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