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Preheating

Preheating. Preheating. Preheating. short wave. Preheating Zones. short wave. medium wave. medium wave. convection. Differrent ways of energy transfer are required . How do I choose the right pre-heating configuration ?. medium wave. convection. short wave.

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Preheating

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  1. Preheating

  2. Preheating Preheating

  3. short wave PreheatingZones shortwave medium wave medium wave convection • Differrent ways of energy transfer are required

  4. How do I choosetherightpre-heatingconfiguration? medium wave convection shortwave

  5. Influence of different preheat designs on the assemblies LED High Mass TH LED High Mass TH Bottom side IR Bottom Side Convection LED needs Short/Med IR LED may overheats with convection only in tunnel Short/Med IR insufficient for High Mass TH High Mass TH requires energy from convection

  6. ERSA Multijet Convection from Top & Bottom New Top Side Convection LED High Mass TH Bottom Side IR or Convection High Mass TH requires energy from convection LED safely heated w/ top convection

  7. Short Wave • High mix of PCB types • Fast reacting • Energysaving Bottom side IR

  8. Medium Wave Bottom side IR • Gentle and homogeneous heat transfer • High efficiency • Stressless and smooth PCB heat up • Robust and easy to maintain

  9. bottom side convection Bottom Side Convection • Rapid evaporation for water based flux • Gentle and homogeneous heat transfer • High efficiency • Stressless and smooth PCB heat up • Robust and easy to maintain • Avoids overheating for sensitive components

  10. Top side convection Top Side Convection • High mass TH component • High mass multilayer PCB • No shadow effects through pallets and components • Avoids overheating for sensitive components

  11. A Air Air Air SolderPot B,C A,B,C A Air A,B,C Modular PreheatConcept Preheating Modules: 4 Bottom, 3 Top side Preheating Modules: 3 Bottom, 2 Top side A Preheating: A = Convection B = Medium wave IR C = Short wave IR Air A,B,C • Modular, flexible and individually expandable preheating concept • Variably configurable in both length and performance

  12. A A A Air Air Air Air Air Solder Pot B,C A,B,C A,B,C A,B,C Preheat Summary Preheating: A = Convection B = Medium wave IR C = Short wave IR Do not compromise! Leadingedgemachines must providefor all combinations!

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