Thermal expansion concern

[Balty Knowles]

It's been a long long time since my college days but I remember a lab test where we stopped a steel bar from expanding & when it cooled it actually reduced in dimension. I would think the brick work would have more than enough strength to prevent the expansion in a 12 " long angle iron without cracking. It would be more likely to loosen up a little bit when it contracts again. Fix it from he side to prevent this & leave a little longtitudinal tolerance in the bolt holes.

Rgds

Balty

[nissanneill]

Hi Enz and Balty,
the frame has been set into a groove cut 50mm into the adjoining soldier course of bricks and can bove a little without causing any ill effects to the oven. The 53 thousands of an inch expansion can be more than catered for in the design and I am quite confident that no problems will eventuate.
I have a motto that I tend to live by, (and I encourage my students to do the same) and that is "Prevention is better than cure". I tend to anticipate any potential problems and try to design around them.