歯科ろう着に関する研究 (第9報) : 赤外線ろう着における引張強度

概要

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The purpose of this study is to compare the tensile strength of Ni-Cr base metal presoldered joints, soldered by focused energy of infra-red (Infra-red soldering) with torch soldering technique. The results indicate the following. 1. The tensile strength of presoldered joints, soldered by Infra-red soldering is statistically stronger than presoldered joints, soldered by torch soldering (α=0.0l). 2. In case of torch soldering joints, porosities appeared to have a greater tendency than Infra-red soldering joints. Torch soldering joints porosities are seven times as many as the other. 3. Correct tensile strength (Maximum Load : Kg/Sectional area of specimen-Porosity area : mm^2) of presoldered joints, soldered by both method are similar. It means that, tensile strength is correlate closely with certainly soldering area.
1988-08-01