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topic 17118

Food safe techniques for cold bonding aluminum for structural support


2002

affil. link
Adhesive Bonding of Aluminum Alloys
by Edward Thrall
from Abe Books
or

I am looking for an inexpensive method of bonding reinforcing bars (bar stock, square tube or channel)across the aluminum deck plates of a commercial ice cream display case. The bars will span about 27" and be parallel at approximately 8" on center. The aluminum bars will be bonded to flat aluminum plate about 1/8" thick. I was looking at welding but can't have any distortion of the plate. The joint must be seamless to the extent that it will not allow a space or gap that will harbor bacterial growth.

Noel J. Wells
Noel J. Wells Refrigeration - Tustin, California, USA


2002

In the aerospace industry they use phosphoric acid anodizing and adhesives for bonding aluminum. I don't know whether that fits. "Anaerobic sealants" are quite common for sealing lapped or spot-welded joints; there probably are some food-safe ones, although that's not within my experience.

Ted Mooney, finishing.com Teds signature
Ted Mooney, P.E.
finishing.com - Pine Beach, New Jersey
Striving to live Aloha

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