正畸用银钎焊合金。

Orthodontic silver brazing alloys.

作者信息

Brockhurst P J, Pham H L

出版信息

Aust Orthod J. 1989 Oct;11(2):96-9.

Abstract

Orthodontic silver brazing alloys suffer from the presence of cadmium, excessive flow temperatures, and crevice corrosion on stainless steel. Seven alloys were examined. Two alloys contained cadmium. The lowest flow temperature observed was 629 degrees C for a cadmium alloy and 651 degrees C for two cadmium free alloys. Three alloys had corrosion resistance superior to the other solders. Addition of low melting temperature elements gallium and indium reduced flow temperature in some cases but produced brittleness in the brazing alloy.

摘要

正畸银钎焊合金存在镉含量、过高的流动温度以及在不锈钢上产生缝隙腐蚀等问题。对七种合金进行了检测。两种合金含有镉。观察到含镉合金的最低流动温度为629摄氏度，两种无镉合金的最低流动温度为651摄氏度。三种合金的耐腐蚀性优于其他钎料。在某些情况下，添加低熔点元素镓和铟会降低流动温度，但会使钎焊合金产生脆性。