View Single Post
  #175  
Old 03-29-2011, 10:57 PM
Brian Wong Shui Brian Wong Shui is online now
Registered User
 
Join Date: Oct 2002
Location: Atlanta, GA
Posts: 179
Brian Wong Shui is on a distinguished road
Quote:
Originally Posted by Pete VanderLaan View Post
what Brian said about the stainless is true. I removed all the screws from mine and it stopped hanging. Pretty but dysfunctional.

I have never had an element fail unless I was involved in making it fail.
Pete,

Our last element failure occurred at the end of the transition from the shank to the hot zone. There was a sharp machining mark at the end of the transition. My hypothesis is that the sharp machining mark created a stress concentration which turned into a crack which fatigued during heat cycling. The crack propagated over time. The broken parts had that classic look of cyclic fatigue failure.

I don't think that it was caused by us winging the element.
Reply With Quote