> > > Phil brought up a facet about increasing solder temperature...I've done > everything else (slowing belt speed, increasing pre-heat temps) but that, > only resulting in exhausting the flux before hitting the wave..which is not a > good thing...spikes, bridges, etc....so how much higher than 500-F should I > go? I'm also setting the wave depth that the board experiences when entering > the wave at the level where you could crack a walnut in between my > butt-cheeks when I'm watching a board go into the wave...in other words, it's > d-e-e-e-p bro'! > > I get the feeling that I'm grasping at straws...as you said; "No way out..." > > -Steve Gregory- Steve, Regards the deepth of you bord into the wave,used to have a similar problem with several "hard" to solder PWBs. Some bright spark introduced us to "Board stiffners" that clip onto the leading and trailing edge of the assembly. The extra height of these on the front of the PWB definatly lowers the stress levels as they go through. P Tremewen.... ############################################################## TechNet Mail List provided as a free service by IPC using LISTSERV 1.8c ############################################################## To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: To subscribe: SUBSCRIBE TECHNET <your full name> To unsubscribe: SIGNOFF TECHNET ############################################################## Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional information. If you need assistance - contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ##############################################################