Technical Library | 2007-04-18 19:23:22.0
Recent investigations have revealed that Pb-free solder joints may be fragile, prone to premature interfacial failure particularly under shock loading, as initially formed or tend to become so under moderate thermal aging. Depending on the solder pad surface finish, different mechanisms are clearly involved, but none of the commonly used surface finishes appear to be consistently immune to embrittlement processes. This is of obvious concern for products facing relatively high operating temperatures for protracted times and/or mechanical shock or strong vibrations in service.
Used SMT Equipment | Soldering - Wave
Speedline Technologies Electrovert EPK Gold Wave Solder Machine - just removered from production in working conditon. Currently in production and available now. 11/2005 DOM, 208VAC 3 Phase Power, Reciprocating Spray Fluxer, L to R Board Flow, Heavy D
Technical Library | 2013-10-17 17:46:01.0
Although several commercial and experimental Pb-free solder alloys are available as replacements for Sn-Pb solders, the following families of solders are of particular interest and are the prevailing choices of industry: eutectic Sn-Ag, eutectic Sn-Cu, eutectic Sn-Zn, eutectic Bi-Sn, and Sn–In. Since the properties of the binary Pb-free solders cannot fully meet the requirements for applications in electronic packaging, additional alloying elements are added to improve the performance of these alloys. Thus, ternary and even quaternary Pb-free solders have been developed, such as Sn-Ag-Cu, Sn-Ag-Bi, and Sn-Zn-Bi solder...
Used SMT Equipment | Soldering - Wave
ELECTROVERT VECTRA WAVE SOLDER PB-FREE INTERNAL SPRAY FLUXER 2009 VINTAGE 2 UNITS AVAILABLE.
Used SMT Equipment | Soldering - Wave
Vitronics Soltec Delta 5 Wave Soldering Machine (Pb-free)(2008) Brand: Vitronics Soltec Model: Delta 5 Year: 2008 Serial #: 0890070 Type: Wave soldering machine Machine specifications: Lambda (main) wave Rotary (smart) wave Chip wave Flu
Used SMT Equipment | Soldering - Wave
EPK Plus 400F 09/1999 440VAC 3 phase, L to R Board Flow, V Fingers, 16" Process width, USI Opti Flux External Spray Cabinet, Convection pre-heat with Top Side IR Heat, Chip Wave, Lambda Wave, N2 Capable, Was used in a climate controlled facility/env
Used SMT Equipment | Soldering - Wave
Pb-free N2 option Please quote if available.
Used SMT Equipment | Soldering - Wave
Used, reconditioned, resurfaced and melonite coated for Pb Free wave solder process. Speedline , Electrovert, Lambda Wave, Ultra fill 22" nozzle and flow duct. Excellant condition. Complete and operational. FOB: Origin MN 55439
Industry Directory | Distributor / Manufacturer / Manufacturer's Representative
Leading Supplier of PB Free Soldering Equipment, Fume Extraction, and Soldering Tools.
Technical Library | 2022-03-02 21:26:51.0
The solderability of a nickel-palladium-gold (Ni-Pd-Au) finish on a Cu substrate was evaluated for the Pb-free solder, 95.5Sn-3.9Ag-0.6 Cu (wt.%, abbreviated Sn-Ag-Cu) and the eutectic 63Sn-37 Pb (Sn-Pb) alloy. The solder temperature was 245ºC. The flux was a rosin-based mildly activated (RMA) solution. The Ni-Pd-Au finish was tested in the as-fabricated condition as well as after exposure to one of the following accelerated storage (shelf life) regiments: (1) 33.6, 67.2, or 336 hours in the Battelle Class 2 flowing gas environment or (2) 5, 16, or 24 hours of steam aging (88ºC, 90%RH).
