Electronics Forum: rates (Page 1 of 191)

Reflow cooling rates

Electronics Forum | Mon May 10 10:08:16 EDT 1999 | Rich Taylor

Can anyone tell me what the recommended "typical" cooling rates are after reflow? Are the cooling rates considered as critical to control as the heating rates and why/why not?

Re: Reflow cooling rates

Electronics Forum | Mon May 10 13:55:22 EDT 1999 | Deon Nungaray

Can anyone tell me what the recommended "typical" cooling rates are after reflow? Are the cooling rates considered as critical to control as the heating rates and why/why not? I do not think there is a "typical" post reflow cooling rate out ther

real placement rates

Electronics Forum | Wed Jul 22 17:37:54 EDT 1998 | Jim Lewis

Does anyone have an idea of what a good placement rate (pph) is for a low volume, high mix smt line? We do small lots (10-300pcs), with a feeder count that ranges from 28 to 130 per setup. We have low volume machines (an old (real old) Siemens HS-180

Re: Reflow cooling rates

Electronics Forum | Wed May 12 10:29:25 EDT 1999 | Timothy O'Neill

Can anyone tell me what the recommended "typical" cooling rates are after reflow? Are the cooling rates considered as critical to control as the heating rates and why/why not? I do not think there is a "typical" post reflow cooling rate

Re: Reflow cooling rates

Electronics Forum | Mon May 10 15:49:52 EDT 1999 | Steve Gregory

Can anyone tell me what the recommended "typical" cooling rates are after reflow? Are the cooling rates considered as critical to control as the heating rates and why/why not? I do not think there is a "typical" post reflow cooling rate out

Re: real placement rates

Electronics Forum | Thu Jul 23 07:33:28 EDT 1998 | The Wretched SMD

200 boards/Hr and oven will reflow ~180 boards/Hr but the P&P machine will only place 700-950 CPH when setup is taken into account. Minimum pitch is normally .020" and we place an Avg. of 491 TSSOPs and 217 BGAs a month. We don't even bother with 04

Re: real placement rates

Electronics Forum | Wed Aug 05 10:50:06 EDT 1998 | Jim Price

Does anyone have an idea of what a good placement rate (pph) is for a low volume, high mix smt line? We do small lots (10-300pcs), with a feeder count that ranges from 28 to 130 per setup. We have low volume machines (an old (real old) Siemens HS-1

Re: real placement rates

Electronics Forum | Fri Jul 24 12:12:52 EDT 1998 | smd

200 boards/Hr and oven will reflow ~180 boards/Hr but the P&P machine will only place 700-950 CPH when setup is taken into account. Minimum pitch is normally .020" and we place an Avg. of 491 TSSOPs and 217 BGAs a month. We don't even bother

Re: real placement rates

Electronics Forum | Fri Jul 24 16:02:13 EDT 1998 | Justin Medernach

200 boards/Hr and oven will reflow ~180 boards/Hr but the P&P machine will only place 700-950 CPH when setup is taken into account. Minimum pitch is normally .020" and we place an Avg. of 491 TSSOPs and 217 BGAs a month. We don't even bo

Re: real placement rates

Electronics Forum | Fri Jul 24 09:50:13 EDT 1998 | Justin Medernach

200 boards/Hr and oven will reflow ~180 boards/Hr but the P&P machine will only place 700-950 CPH when setup is taken into account. Minimum pitch is normally .020" and we place an Avg. of 491 TSSOPs and 217 BGAs a month. We don't even bother wit

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