View our Alumaweld Technical Bulletin for application tips. Zinc is an element made up of hard, sharp-edged crystals that aid in abrading (scrubbing) through the tough aluminum oxide layer, thus permitting the metallurgical reaction between the filler and base metals to occur. Swagging is effective only because of the zinc content in Alumaweld solders. Alumaweld solders may also be used to "swage," abrade or mechanically clean the surface without using the chemical cleaning action of a flux. Johnson is a leading supplier of tin-zinc solders to the capacitor, plating and thermal spray industries.MĪlumaweld alloys may be used with Johnson's Alumasol Organic Soldering Flux, or our more aggressive Alumweld 2000 Inorganic Chloride Flux. When used with flux, its wide plastic range is better suited to soldering heavier materials and wider joint clearances. #22 Alumaweld starts to melt at 390 F also, however it is not completely liquid until it reaches 635 degrees F (335 C). This relatively low temperature enables its use for soldering thin aluminum materials, or for pretinning temperature or flux sensitive aluminum parts to be later joined in another step. Our #21 is the eutectic composition, Sn/9Zn that melts at 390 degrees F (199 C). Johnson's #2 Sn/25Zn, #20 Sn/20Zn, and another alloy, Sn/30Zn, are generally supplied in wire form for thermal spray applications. It is used most often for the repair of cast iron, either with or without a flux. Alumaweld Solders have many uses: #1 is the only alloy in this family that contains lead, 40% by weight. Johnson's family of tin-zinc alloys for soldering aluminum are referred to as "Alumaweld" solders, a tradeid that goes back to the early thirties. JOHNSON'S ALUMAWELD SOLDERS Tin-Zinc Solders for Soldering Aluminum and Other Metals View Johnson's Technical Bulletin on Core Solders. 5 to 4.5%, in common wire diameters on 1, 5 and 20 Lb. Johnson's Core Solders are available in many standard alloys, including Lead-free, with core precentages from. AC-600 Inorganic Acid Core Solder, our most aggressive flux, solders stainless steels.AL-300 Organic Core Flux solders aluminum, copper, galvanized, nickel, coated metals.OR-520 Organic Acid Core, semi-solid flux stops core leakage, for copper, brass, steel.OR-200 Mild Stearine Core for architectural metal roofing, flashings, orid ntal.OR-120 No-Clean Mild Organic Core for audio, automotive, electrical, hobby, wiring.OR-100 Water Soluble Organic Core for audio, electronics, PC boards and rework.X-100 Extra-Activated Rosin Core (RA Type) general purpose, electrical, architectural. AR-100 Activated Rosin Core (RA Type) for DIY, electrical, hardware, wiring, hobby.RM-100 Mildly Activated Rosin Core (RMA Type) for electrical, electronics.R-100 Non-Activated Rosin Core (R Type) for copper, tinplate.JOHNSON'S CORED WIRE SOLDERS Johnson Offers Wide Selection of Flux Cores for many Soldering Applications Johnson's Pure Solders are available in most standard forms of Solid and Flux Cored Wire, Rod and Bar, plus our exclusive, 100% Dense, Oxide-Free, Vacuum-Cast Billets which are excellent for use in solder pots. You are here: Home > Solder > Lead Free Alloys JOHNSON'S PURE SOLDERS Johnson Pure Solders are Vacuum Cast for Highest Purity Lead-Free and Leaded Solder Compositions JOHNSON MFG.
0 Comments
Leave a Reply. |