Electronics Forum | Mon Jul 01 19:43:44 EDT 2013 | kumar_antom
Hi there, Its a lead free process and the paste that we're using is with this alloy composition : Sn,Ag,Cu,Bi,In.... Pls refer to the attached temp.profile.... This is a mirror Pcb....Same components on both A and B side.... A side doesn't have t
Electronics Forum | Mon Apr 15 06:30:23 EDT 2019 | spoiltforchoice
Its not the max temperature that is the issue, its how much energy the oven is capable of transferring to the PCB inside the 4-6 minute window of a typical profile. In a conveyor oven this is achieved by having zones of different temperatures, but th
Electronics Forum | Sun Jun 09 21:10:11 EDT 2019 | don_julio
In our reflow oven it has pins which move at the predetermined speed to move the pcb through the various zones in the oven. The forward row of pins is fixed along the front of the oven. The rear set of pins is adjustable per the width of the pcb. We
Electronics Forum | Mon Jun 10 08:51:01 EDT 2019 | don_julio
Thank you Clare. After doing some more research, I found they are known in the industry as "Carriers". I did look into that durostone material. They prices are beyond reasonable. My trek now is seeking a material to make planks out of to lay the b
Electronics Forum | Mon Jun 10 05:05:33 EDT 2019 | pcbconnectchina
Hello! Don, I heard from SMT factory that the fixture for oven they use is durostone material, I don't if durostone is correct name translated, it is synthetic stone made of carbon fiber sheet. Best Regards Clare PCB Connect China
Electronics Forum | Mon Jun 10 10:23:47 EDT 2019 | don_julio
We started getting better reflow after rotating the pcb to locate the greater mass closer to the center of the oven. However we still leave space between panels on the conveyor to achieve a better reflow. This costs us production time. I'm simply lo
Electronics Forum | Thu Jun 13 09:39:43 EDT 2019 | don_julio
Problem is I don't have a mesh belt (lesson learned). Our conveyor is pins. If I laid some scrap pcb's spanning the conveyor pins on the long dimension of the board, I'm confident it would sag. We get a bit of sag today in our 1.6mm thick boards whi
Electronics Forum | Wed Aug 28 18:08:07 EDT 2002 | MikeF
This looks like it may be a good application for an Air-Vac or Wenesco type solder station. It is a solder pot that has a small motor to pump solder up through a chimney. You can put different nozzles on the top of the chimney, so you only apply sold
Electronics Forum | Mon Aug 26 20:33:50 EDT 2002 | davef
Not as such. Generally, people tailor their profiles to produce glam solder connections on their boards. Search the fine SMTnet Archives for discussion on the factors affecting solder reflow recipes. What is the best way to get these PCB made to s
Electronics Forum | Mon Mar 31 07:58:50 EDT 2008 | vinitverma
Assuming the following: L=Process Length of the oven t=Desired profile time in mins(depends on the paste/glue used) l=PCB length l1=gap between consecutive PCBs Then the total no. of PCBs per hour is" (L*60/t)/(l+l1) Vinit
Products, services, training & consulting for the assembly, rework & repair of electronic assemblies. BGA process experts. Manufacturers Rep, Distributor & Service Provider for Seamark/Zhuomao and Shuttle Star BGA Rework Stations.
Training Provider / Manufacturer's Representative / Equipment Dealer / Broker / Auctions / Consultant / Service Provider
1750 Mitchell Ave.
Oroville, CA USA
Phone: (888) 406-2830
winsouce.jpg)
