|
Sponsor
|
|
Circuitnet Advertising Delivers Results!
Introduce your technology, new products or services in our daily e-mail newsletter & website to see how a digital advertising campaign can deliver results. Reach over 200,000 professionals.
Circuitnet LLC
|
|
|
Sponsor
|
|
EZ-FLO High Precision Dispense Tips
Each needle is machined from solid stainless steel as opposed to rolled tubing. The resulting smoother internal profile enhances material flow and consistency. Learn more.
DL Technology
|
|
| Ask the Experts |
|
QUESTIONS
SUBMIT
MEMBERS
JOIN
|
June 11, 2007 - Updated
July 4, 2007 - Originally Posted
Hand soldering process
Why is a short dwell time important for hand soldering? Why not set the iron temperature to 500 deg. F (or less!) and just heat the part longer? If the part receives the same amount of heat, are there any consequences besides labor time loss?
S.D.
|
| Expert Panel Responses |
A short dwell time reduces the amount of heat transferred up the lead and into the body of the component. The component load on the soldering iron is a much smaller load then the thermal load of the entire printed circuit board so a temperature of 600 � 700 F is recommended for typical soldering operations. Soldering at 500 will cause the part to overheat and create cold solder joints on the circuit board.
Edward Zamborsky
Regional Sales Manager, OK International Inc.
Ed Zamborsky is a Regional Sales & Technical Support Manager for Thermaltronics, located in New York. His position requires frequent customer visits throughout North America and the Caribbean and his position encompasses not only sales but the role of trainer and master applications engineer for all of Thermaltronics products. His expertise includes such specialties as hand soldering, convection and conduction reflow techniques, array rework, fluid dispensing equipment, and fume extraction. Ed has authored many articles and has presented many papers on topics such as; Low Volume SMT Assembly, Solder Fume Extraction, SMT Rework, BGA Rework, Lead-Free Hand Soldering, High Thermal Demand Hand Soldering, Lead Free Visual Inspection and Lead Free Array Rework.
|
|
|
Free Newsletter Subscription
Circuitnet is built for professionals who bear the responsibility of looking ahead, imagining the future, and preparing for it.
Insert Your Email Address
|
|
Sponsor
|
|
Optimize Your Process on Full SMT Demo Line
Validate your process in our demo lab. Our full line—printing, P&P, reflow, and AOI—is ready to optimize your profile and prove performance. Send us your boards to start.
Heller Industries
|
|
|
