Printed Circuit Board Assembly & PCB Design SMT Electronics Assembly Manufacturing Forum

Printed Circuit Board Assembly & PCB Design Forum

SMT electronics assembly manufacturing forum.


Next Stages of Lead Free

Views: 1776

#43275

Next Stages of Lead Free | 11 August, 2006

Hi,

I live in Minneapolis,MN USA. I was watching the news last night and began to laugh. There was a news story on the benefits of silver in fighting infection and healing. I know first hand that silver fights bacteria. I set myself on fire working once and the silver dressings and creams worked wonders. Anyway there are silver impregnated food storage containers and even washing machines that release silver into the wash water. The silver kills the bacteria. So the next person they have on is some environmentalist stating that all this silver in washing machines and food containers is going to get into the ground water,lakes, and rivers and kill animal species.

SAC 305, so I have been told, is not the final solder alloy. I wonder if the final alloy will contain silver?

Several children have already died from eating pure lead jewelry sold in bubble gum machines and given away by Reebok. Is this crap regulated or illegal to sell?

Later,

Chris

reply »

H.W. Jablohmie

#43276

Next Stages of Lead Free | 11 August, 2006

I do know for a fact you can eat as much Bismuth as you want and you won't die! Google it!

reply »

Chunks

#43277

Next Stages of Lead Free | 11 August, 2006

Hello Hey Wood!

I have to say Bismuth is a no-no for late night snacking. Although it is low in calories and tastes even better with sprinkles on top, the dang Canadians dissagree!

http://www.eurekalert.org/pub_releases/2004-11/uot-sob111504.php

reply »

#43333

Next Stages of Lead Free | 15 August, 2006

H.W.

At a lead-free seminar I took last year, the PhD lecturer, who is known to be a huge proponent of Bismuth, said the same thing. It is absolutely non-toxic and is used in foods, makeup, etc.

reply »

Chunks

#43335

Next Stages of Lead Free | 15 August, 2006

Ah, PhD (Paid hired Delinquent).

reply »


RDR

#43336

Next Stages of Lead Free | 15 August, 2006

Was there not concern about Bismuth for some reason? Cannot remember what it was but it seemed to do with reliability or something?

Russ

reply »

Chunks

#43337

Next Stages of Lead Free | 15 August, 2006

I beleieve it is rare or there is not a large supply of it available. I still wouldn't eat it or smear it on my upper lip like the "Got RoHS?" adds. How dirty is that Mr. Sanchez?

reply »

#43340

Next Stages of Lead Free | 15 August, 2006

Mounds of data were provided supporting a SnAgBi system. The data showed that this type of alloy had performed the best under ESS and reliability testing - as long as the Bi content was kept < 4%.

reply »

#43346

Next Stages of Lead Free | 15 August, 2006

Anyone who uses Pepto-Bismol is drinking Bismuth.

In the early 90s the Dept of Defense banned Antimony in solder but later repealed the ban. I drained the waves and the hot air solder leveler and replaced the solder with "No Antimony" solder. There was less than 0.5% of Antimony in the solder I drained. The reason for the ban was because Antimony comes from China. The US did not want to be tied to China for the supply of Antimony.

reply »

cuculi54986@yahoo.com

#43347

Next Stages of Lead Free | 15 August, 2006

Russ, I believe the concern over solders with bismuth in them was that if you did happen to get a little Pb in your solder joint, you could create an alloy that could melt at around 100 degrees C, and that's not all that warm.

At least, that's what I remember.

reply »


RDR

#43353

Next Stages of Lead Free | 16 August, 2006

thanks, I thnk it was something like that.

I am trying to find what I am talking about hehe

Russ

reply »

Perb Habes

#43356

Next Stages of Lead Free | 16 August, 2006

Bizmuth once saved my life in Nam.

reply »

Reflow Oven

PCB Cleaning