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The process described

-1a scrub aluminium plates parts which will be joined with abrasive sandpaper
-1b check if the plates surfaces are clean, (if the cold water is spreaded (extended) uniformly
-2a sprinkle the solvent degreasing surfaces (butanone)
-2b check if the plates surfaces are clean, (if the cold water is spreaded (extended) uniformly)
-3a immerse the aluminium plates in an alkaline dipping bath during a minute
-3b rinse with water
-4a immerse the piece in a sulphochromic solvent (during fifteen minutes)
-4b rinse with water
-4c dry in a stove
-5a mix the adhesive components in a watch glass
With a vernier caliper, the length of overlap is marked (in a stepped foundation)
-5b the glue is spreaded and is held by a clamp. The plates are joined so that to be perfectly glued (both plates are held by a peg)

The process done in the laboratory of adhesive materials advocates the adhesive glue, a safer and cheaper choice. In some instances potent glue is required, better than other riveting processes. Besides this process is encouraged
Having scrubbing aluminium plates with abrasive sandpaper, then surfaces, which will be joined, are checked to be cleaned. This process consists on checking if the cold water is spreaded uniformly and fatty residues are removed. That will be repeated after degreasing surfaces with butanone solvent. Rinsing with water is necessary after aluminium plates are immersed in an alkaline dipping bath for a minute and in a sulphochromic solvent during fifteen minutes. Plates are dried in a stove. With a vernier caliper, the length of overlap is marked. Once adhesive components have been mixed in a watch glass, the glue layer is spreaded and plates are joined to be perfectly glued. Both plates are held by a peg.
The attached surfaces strength depends on the adhesive layer thickness, the adhesive characteristics and the process performance. This process sustains its importance in aerospace industry.

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