Re: [TCML] Winding the primary

[Ed Phillips <evp@xxxxxxxxxxx>]

 There was brief mention of water quench as part of the process for annealing exotic zirconium-copper and chromium-copper alloys, but that's not applicable to common copper refrigeration tubing.
  
 An interesting technical paper with temperature vs hardness annealing curves for copper shows that no quenching is required to achieve maximum softness."

	I've found 2 and only 2 advantages to quenching from red heat.

1. It cools the copper quickly so it's easy to handle.

2. The scale almost always flakes off leaving a nice pink surface which is easy to burnish with steel wool.

Problem of course is getting all of a coil of tubing hot enough at one time so the scale flakes.

Ed


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