Silver brazing alloys will not flow over or bond to oxides. Oily or greasy surfaces repel fluxes, leaving bare spots which oxidize and result in voids and inclusions.
因为银钎焊合金并不会流过或粘接在氧化物上，而油污的表面及暴露的、容易氧化和导致空隙和杂物排斥焊剂。
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High power transverse flow CO2 laser was used to scan the brazing alloy and diamond grits.