Electronics Forum | Tue Jan 31 11:56:12 EST 2006 | kmorris
Just wanted to take a quick poll, as to how others are taking flux density measurements on their wave solder machines.(those that don't have flux density contollers) We are using a glass hydrometer, but I see there is a digital model on the market.
Electronics Forum | Wed Feb 01 08:27:29 EST 2006 | Chunks
I haven't seen a hydrometer used in years. Are you still foam fluxing? There used to be automatic units available, but with the advent of the spray fluxer, they may have dried up. If you are still foam fluxing with alcohol thinner, place ping pong
Electronics Forum | Tue Jan 31 13:05:11 EST 2006 | james
Just want to know if it is ok to leave parts in the bag with an open end. I just hate for the operators to start leaving parts in the mcdry with just the tray. I could see them damaging them, label incorrectly or mixing them up. Just want to know
Electronics Forum | Fri Feb 03 02:04:16 EST 2006 | pavel_murtishev
Good morning James, It depends on MSD class. Refer to J-STD-033. When you open dry bag shelf life starts. You have to mount all devices before maximum allowable shelf life time exceeds. Storing in dry cabinet capable maintaining RH
Electronics Forum | Tue Jan 31 14:30:38 EST 2006 | Chunks
There is none, since we don't know your part or temp being used. A heat gun CAN be used to remove parts with no damage, if its controled. You need to look up your part on the manufacturers web site, find the process data (time/temp)the part is desi
Electronics Forum | Tue Jan 31 14:58:15 EST 2006 | samir
You see? Chunks, here has the right idea! To the original poster, you need to show this post to your "Desk Jockey" Process Engineer. That's the problem with some Engineers today. They forget everything they learned in Engineering school, they get
Electronics Forum | Tue Jan 31 15:40:44 EST 2006 | mgdrouin1
Comp is relay. I've pulled the spec. Max 240. Using Leister h/g with manual temp settings from 1-6 (20 - 600C)set by the operator. Gun was set to setting 4. They are using the heat gun to reflow the solder after SMT but before wave. High fai
Electronics Forum | Wed Feb 01 22:27:16 EST 2006 | KEN
Many relays use soldered post coil terminatins inside the relay. In one case many years ago I found the SMT relay manufacturer used eutectic solder inside their hermetic relay. The SMT relay would fail because the solder balled up on the post, woul
Electronics Forum | Wed Feb 01 18:11:43 EST 2006 | Chris
I wonder if they are concerned about getting chemicals trapped in the tented vias. If the tented vias have pin hole openings or even larger openings, chemicals from the ENIG process could become entrapped in the via holes and not washed away in the
Electronics Forum | Wed Feb 01 10:13:50 EST 2006 | bsteffen
I know exactly what you are going through. One example, I needed a flux pump assembly. Vitronics price, about $1000.00. Going through the OEM (Fluid-O-Tech) the same assembly was $218.00. Oh and God forbid that you actually have to call Vitronics an