Electronics Forum: waste (Page 1 of 63)

normal waste

Electronics Forum | Thu Apr 10 03:03:23 EDT 2003 | emeto

Hi all.We have between 2 and 3 percent waste of components.The software gives info about the whole waste and I am interested what's the limit for component waste?Where I can read about it?Are there any tables with given limits? Any posts,please!

normal waste

Electronics Forum | Thu Apr 10 07:27:34 EDT 2003 | pjc

Where is the 2 - 3 perc? On the SMC placement machine only or througout all your processes?

normal waste

Electronics Forum | Thu Apr 10 09:41:02 EDT 2003 | emeto

Pete,it's only in placement process.

normal waste

Electronics Forum | Thu Apr 10 10:54:34 EDT 2003 | pjc

It will vary by placement machine mfg. and type. I had 4x Fuji CP3 (turret chip-shooter) and 2x Fuji IP2 (split axis general app-fine-pitch)and tracked component shrinkage at 0.05%-0.5% on average. Above 0.5% triggered maint. & process eng. response.

normal waste

Electronics Forum | Thu Apr 10 10:05:30 EDT 2003 | stefwitt

I do assume the only machine capable of reporting rejected components is the placement machine. 2-3% is certainly way too much. Expect rejects ( out of visible tolerance ) in the permille range but not percent. If components are rejected with vacuum

Re: recycling waste paste

Electronics Forum | Thu Sep 28 14:36:45 EDT 2000 | James

We dump the paste in with the dross in a 55 gallon drum. It's all hazardus waste the only difference is paste has flux and dross is who knows what. We use waste recycler. I don't know if we get as much money back as you would from the manufacturer

Conformal coating waste

Electronics Forum | Wed Jan 29 16:14:16 EST 2003 | blnorman

One of the safest ways to dispose of urethane conformal coating waste is to cure it. Once it's cured it no longer is considered a hazardous waste. In the uncured state it is. We have tubes of epoxy adhesives (out of shelf life) that we do the same

Conformal coating waste

Electronics Forum | Wed Jan 29 13:47:32 EST 2003 | Jacob

We are currently storing small amounts of our conformal coating waste. Recently someone asked how we would dispose of the material and I hadn't the slightest idea because this is a new process for us. I started to look into proper disposal for the

Re: recycling waste paste

Electronics Forum | Mon Sep 25 19:33:42 EDT 2000 | Dave F

Steve: How bout loading the old paste into syringes and have your hand solderers use it?

waste pb free

Electronics Forum | Thu Jan 05 20:47:29 EST 2006 | davef

Russ To get started try: Brandon Boger, Manager Brandon.Boger@colorado.edu

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