Somewhat OT: Long term design
in [Design]
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From: Uwe Hercksen on 29 Jan 2010 06:23 Jim Thompson schrieb: > It's all about maintenance. Wonder how often the bellows had to be > replaced/rebuilt? Probably even some pipes? Hello, not only the pipes and bellows, but also the keyboards and the valves cotrolling the air to the pipes. Bye
From: Uwe Hercksen on 29 Jan 2010 06:27 John Larkin schrieb: > Aluminums fail by drying out, through water vapor leakage through the > rubber seals. That's a wearout mechanism. Hello, rubber often does not stand for many decades, it loses flexiblity and goes hard and brittle developing cracks. Bye
From: JosephKK on 29 Jan 2010 22:14
On Fri, 29 Jan 2010 12:20:21 +0100, Uwe Hercksen <hercksen(a)mew.uni-erlangen.de> wrote: > > >Michael A. Terrell schrieb: > >> Tin whiskers. > >Hello, > >there is another problem with tin at low temperatures, it may transform >into another modification, the solid metal will be a powder then. In >german we call it Zinnpest or tin-plague. It has destroyed some organ >pipes in churches during a very cold winter. It may be avoided by using >a proper alloy of tin. > >Bye I have also heard of it being a problem with the buttons of early 1900s Russian military uniforms in very cold climates. |