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Re: Pot metal, broken key!

Author: Chris P
Date: 2010-12-08 06:27

If the C#/G# touch came off the key barrel, chances are it's a dry solder joint which means it wasn't prepared well before soldering when it was made - the solder hasn't flowed into the joint but has only tacked the touchpiece onto the key barrel around the outside of the joint.

So clean up the joint surfaces of the dry joint so you get clean, shiny metal (though you don't have to remove the existing silver solder - just scrape all the oxide off to leave it shiny), jig them together with some flux in the joint, heat until red/orange hot and then apply silver solder. The plating may be damaged, so paper up the scorched area and polish up to a bright shine to make it look better.

It's very unlikely that it's made of mazak as bass clarinet keys do take a lot more punishment due to their lengths than soprano clarinet keywork and mazak won't be up to the job on anything larger than a soprano clarinet.

Former oboe finisher
Howarth of London
1998 - 2010
The opinions I express are my own.

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Pot metal, broken key! new

klook

2010-12-08 01:14