WebJul 10, 2024 · Keep a wet sponge handy, and after the soldering iron is fully heated, softly scrape it against the sponge to remove old solder. The tip should be nice and shiny, or … Webtrolytic solder is specially designed for use in all wave soldering and tin and dip soldering applications. It is primarily used in printed circuit board assembly operations common to the electronics market. Less Dross and Re-Work This alloy provides brighter, shinier, less grainy solder joints when compared to Sn96.5/Ag3.0/ Cu0.5 (SAC 305) alloy.
TIN/LEAD ALLOYS - AIM Solder
WebApr 10, 2001 · Grainy SMT Solder Joint 10 April, 2001 One of the reasons for a grainy joint is the cooling of the joint after reflow. Check your reflow profile, not just the … Or contact us by phone or mail. SMTnet 98 Elm Street Portland, Maine 04101, USA. … The SMT industry's largest collection of electronics manufacturing training … Recent Postings - SMTnet WebNov 10, 2016 · You can use wicking braid to “suck up” excessive solder before going again. A grainy soldering joint is mechanically weak and prone to corrosion. Coat with flexible varnish (there are MIL spec products available for this purpose) or the Star-Brite liquid insulation coating (in a pinch). Use flat-braided waxed cable “sewing” twine or zip ... portland general electric territory
rough grainy solder joints - SMT Electronics Manufacturing
WebAug 16, 2007 · Technical Library: grainy solder (Page 1 of 2) Investigation of PCB Failure after SMT Manufacturing Process Technical Library 2024-10-21 09:58:50.0 An ACI Technologies customer inquired regarding printed circuit board (PCB) failures that were becoming increasingly prevalent after the SMT (surface mount technology) … WebSep 10, 2024 · An appropriate application requires an appropriate solder paste metal to flux weight ratio. In other words, no slumping of the solder paste. For example, usually dispensable solder paste has a metal … WebAug 26, 2015 · Figure 3: Lead-free and lead-based solder joints. Image Source: Cedos. A good lead-based solder joint will be smooth and shiny, while the lead-free joints are usually duller and grainy. Soldering prcedure. Ensure that the PCB surface, the pads, the component leads, and the soldering tip are all clean. opticien morsang sur orge