Thread: Color bubbles
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Old 05-17-2015, 12:38 PM
Michael Ahlefeldt-Laurvig Michael Ahlefeldt-Laurvig is offline
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I think a lot of bubbles are caused by people trying to whack off a small piece from the end of a causes fractures that make bubbles. The german color rods have gotten a lot better over the years and Id say its not a problem with the color, its operator mistakes. The trick is to hit the rod in the middle and then the middle again etc until you get the size you want- it will make a clean perpendicular break every time and no fractures.
We try to preheat the rods a bit by putting them on top of the annealer for 30 minutes or so when possible but lots of times a 4-6 inch rod will go in "cold" and they dont fracture- if they do they blowup- maybe one in 50
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