CORROSION-RESISTANT BRAZING MATERIAL CONTAINING FLUX

The present invention relates to a corrosion resistant brazing member, used for attaching the same or different kinds of metal materials at a low temperature. The brazing member is formed of a brazing alloy, comprising Si 4-15wt%, In 0.1-3.0wt%, and the rest AI; and fluoride flux corresponding to 10...

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Bibliographische Detailangaben
Hauptverfasser:	YOON, MOON KI, KIM, MYUNG JIN
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	ALLOYS BASIC ELECTRIC ELEMENTS CHEMISTRY CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY FERROUS OR NON-FERROUS ALLOYS MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR METALLURGY PERFORMING OPERATIONS SEMICONDUCTOR DEVICES SOLDERING OR UNSOLDERING TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	The present invention relates to a corrosion resistant brazing member, used for attaching the same or different kinds of metal materials at a low temperature. The brazing member is formed of a brazing alloy, comprising Si 4-15wt%, In 0.1-3.0wt%, and the rest AI; and fluoride flux corresponding to 10-40wt% of the weight of the brazing alloy. The formation is formed into a 3D shape through the mechanical treatment of extrusion molding and powder metal forging or formed into paste containing liquid binder. The brazing member improves corrosion resistance and welding temperature and flow by adding In instead of Zn, which causes corrosion resistance in the formation of the existing Al-Si-Zn brazing alloy. Thus, the member is able to be used in a variety of industrial fields including electric and electronic fields demanding strengthened welding quality against corrosion resistance. 본 발명은 동종 또는 이종의 금속재를 저온에서 접합하는데 사용되는 내부식성 브래이징재에 관한 것이다. 본 발명의 브레이징재는 Si 4∼15wt%, In 0.1∼3.0wt% 및 잔부 Al로 이루어진 브레이징 합금과 상기 브레이징 합금 중량의 10∼40%에 해당하는 중량의 불화물계 플럭스로 조성되는바, 동 조성은 분말단조와 압출성형의 기계적인 가공을 거쳐 3차원 형상으로 성형되거나 액상의 바인더가 첨가된 페이스트 형태로 될 수도 있다. 본 발명의 브레이징재에는 종래 Al-Si-Zn계 브레이징 합금 조성에서 내식성을 초래하는 Zn 대신에 In을 첨가함으로써 용접온도 및 흐름성에 대한 개선과 함께 내부식성의 증진이 이루어지도록 함으로써 내부식성에 대한 강화된 용접 품질특성이 요구되는 전기,전자 분야를 비롯한 여러 산업분야에서 유용하게 사용될 것으로 기대된다.