Typically we use titanium. It works very well. Give me a call and I'll fill
ya in. If you are using a no clean flux though, almost any material will
after numerous passes build up a film and then solder sticks to the film,
not the metal.

Jim Gleason
972-494-1911
-----Original Message-----
From: Neil Atkinson <[log in to unmask]>
To: [log in to unmask] <[log in to unmask]>
Date: Friday, June 11, 1999 9:29 AM
Subject: Re: [TN] Carrier Materials


>> -----Original Message-----
>> From: Neil Atkinson
>> Sent: 11 June 1999 13:28
>> To:   'IPC Technet'
>> Subject:      Carrier Materials
>>
>> We are currently manufacturing a new production line which
>> uses carriers which traverse around a moving line for
>> assembly prior to going over a wave soldering machine.
>>
>> The problem is the carriers are made of an FR4 type material
>> but what material can be used as stops on the underside of
>> the carriers to stop wear?  The tool maker has tried metal
>> stops (steel) but these pick up solder.  Even stainless steel
>> causes problems because a film of solder picks up on stop and
>> causes problems when it falls off on the line.
>>
>>
>> Thanks,
>>
>> Neil Atkinson
>> Quality Manager
>> Stadium Electronic Controls
>
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