[CAUT] Dipping Parts (was re:magnets etc,now Tokiwa parts)

[Avery Todd]

Don,

Just curious. Would the dipping process be the same with the flanges
Kawai uses as with the wood type?

Avery

At 11:21 AM 4/15/2005, you wrote:
>David,
>
>I believe he is referring to wet-sizing the bushings.  The bushings are
>normally wet twice during production, once with hot soapy water to set
>the glue, and another time with alcohol and water (this varies a lot
>with different companies) to size the bushing to a sizing pin.
>
>In the best scenario, after thorough drying the sizing pin is removed,
>the bushing is burnished for final sizing and stabilizing, and the parts
>are assembled with the final pin.
>
>The procedures vary tremendously with different manufacturers.
>
>Don Mannino RPt
>
>-----Original Message-----
>From: caut-bounces@ptg.org [mailto:caut-bounces@ptg.org] On Behalf Of
>David Vanderhoofven
>Sent: Friday, April 15, 2005 7:03 AM
>To: College and University Technicians
>Subject: [CAUT] Dipping Parts (was re:magnets etc,now Tokiwa parts)
>
>
>Hi Ron,
>
>I am curious, what do you dip parts in, and what is the purpose for
>dipping
>action parts?
>
>Sincerely,
>David Vanderhoofven
>
>
>At 03:58 PM 3/31/2005, you wrote:
> >The problem can also occur with good bushing cloth. It is important,
> >when
> >making the parts, to ensure that sufficient time is allowed after
> >installing the bush for the cloth/flange glue to thoroughly dry before
> >dipping the parts to swell the bush. If the parts are dipped to early,
>the
> >glue can migrate through the bushing to the centre pin/bushing contact
> >area. This can allow the glue to deposit on the pin which will
>ultimately
> >result in the galling which many of us have experienced.
> >
> >When we had problems with the aforementioned galling in our earlier
> >actions, I raised the issue of allowing time between bushing and
>dipping
> >with Tokiwa. I don't know exactly what changes were made to the
>production
> >process apart from the use of Renner cloth, but no parts have galled
>for
> >us since the 2002 fix.
> >
> >Ron O.
>
>
>
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_______________________
Avery Todd, RPT
Moores School of Music
University of Houston
Houston, TX 77204-4017