[ Solder ]
[ Solder ]
Force ( micronewtons / mm )
Figure 6 . Solderability test results
Solderability Test Comparison Stainless Steel Flux To Best Stainless Steel Soldering Pastes
350 300 250 200 150 100 50 0
-50
Stainless Steel Flux
Solder Alloy : 96.5 / 3.5 Tin-Silver Solder @ 350 ° C 316 Stainless Steel Each Line Based On 5 Part Dip Average
0.0 1.0 2.0 3.0 4.0 5.0 6.0 Immersion Time ( seconds )
Zinc Chloride Free Solderpaste
Meniscograph Conditions : Immersion Speed : 20 mm / sec Immersion Depth : 4 mm Immersion Time : 5 seconds
Buoyancy Corrected Zero
Zinc Chloride Based Solderpaste solder paste used for this application , this new soldering paste can withstand torch heating and long oven heating processing . This new solder paste works on 316 stainless steel and all other easier to solder steels and metals .
About the authors
William Avery is Metal Joining Specialist at Superior Flux and Mfg . Co . with expertise in solderability testing , evaluating solder joint quality , and product development of innovative flux and soldering solutions for hard-to-solder metals for the electronic and industrial soldering industries . He graduated from the State University of New York at Buffalo .
Dr . Baskin is the president of Superior Flux .
Conclusions As a result of the testing described in this article there is now a better soldering paste for soldering stainless steel available . The new zinc chloride-based solder paste has faster positive solderability than the previous zinc chloride-free solder paste used for this application , and , equally impressively , the new solder paste has maximum wetting like that of the strong stainless steel liquid flux . The new zinc chloride-based solder paste has the advantage of being much more like the highly active corrosive liquid fluxes typical of this application . Unlike the earlier zinc chloride-free
Rebecca Zronek has been a chemist with Superior Flux for over 20 years .
www . stainless-steel-world . net Stainless Steel World December 2023 29