The Melting Pot - Where All Glass Addicts Melt Together - Powered by vBulletin

Results 1 to 3 of 3

Thread: Annealing question

  1. #1
    Join Date
    Jan 2018
    Posts
    353
    Rep Power
    10

    Default Annealing question

    I'm trying to fill in some questions i still have about annealing. If you finish a piece and give it a full annealing cycle, then fuck with it another day like hitting it with borax or adding dots or whatever, will it affect the strength of the piece if you do not give it another full annealing cycle? Such as reduced time at annealing temp? Very similarly, if you dont want to overstrike a piece and you wanna give it 30 more min at annealing temp the next day, can that be done w/o fucking up the integrity of the piece?


  2. #2
    Join Date
    Jun 2005
    Location
    Sauk Rapids, Minnesota
    Posts
    2,568
    Rep Power
    59

    Default Re: Annealing question

    If you are putting localized heat on an annealed piece, you are adding stress in that area, and the entire piece should be annealed again at full cycle.

    Do you have a polarizer card to check your annealing? If not, it just takes a couple of small pieces of polarized material to make one.

  3. #3
    Join Date
    Jan 2018
    Posts
    353
    Rep Power
    10

    Default Re: Annealing question

    Thanks Mike. Photoelasticity. Learning new things every day. I programmed my kiln based on a chart for average thickness of a piece, so as of now i have a marble, basic striking, and pipe program. I can also just change the annealing hold time if i'm in a hurry. For some of these other questions i have and for the programs i think are good, it will be really cool to actually see the stress. I'm going to make a simple polariscope setup this week.


Similar Threads

  1. Annealing Question?
    By colonel4bin in forum Glass Discussion
    Replies: 13
    Last Post: 09-17-2007, 09:58 AM
  2. Quick Annealing Question
    By richsantaclaus in forum Glass Discussion
    Replies: 21
    Last Post: 09-23-2006, 01:00 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Featured Member's Spotlight!
Pogo Blackfire Glassworks Wesley Fleming Whipkey Glass Bullet Proof Glass No Coast Glass
Donate to our forum!