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2. Fretting - Wikipedia

   en.wikipedia.org/wiki/Fretting

   Fretting refers to wear and sometimes corrosion damage of loaded surfaces in contact while they encounter small oscillatory movements tangential to the surface. Fretting is caused by adhesion of contact surface asperities, which are subsequently broken again by the small movement. This breaking causes wear debris to be formed.

3. Piping and plumbing fitting - Wikipedia

   en.wikipedia.org/wiki/Piping_and_plumbing_fitting

   The bodies of fittings for pipe and tubing are often the same base material as the pipe or tubing connected: copper, steel, PVC, CPVC, or ABS. Any material permitted by the plumbing, health, or building code (as applicable) may be used, but it must be compatible with the other materials in the system, the fluids being transported, and the ...

4. Aluminium joining - Wikipedia

   en.wikipedia.org/wiki/Aluminium_joining

   Aluminium alloys are often used due to their high strength-to-weight ratio, corrosion resistance, low cost, high thermal and electrical conductivity.There are a variety of techniques to join aluminium including mechanical fasteners, welding, adhesive bonding, brazing, soldering and friction stir welding (FSW), etc. Various techniques are used based on the cost and strength required for the joint.

5. Quick connect fitting - Wikipedia

   en.wikipedia.org/wiki/Quick_connect_fitting

   Quick connect fittings are intended to be applied more easily than traditional fittings, requiring only that the pipes be pushed together firmly to lock the teeth of the fitting firmly. The teeth are forced deeper into the tubing when opposing force is applied to them, preventing their separation from the tubing.

6. Electrical conduit - Wikipedia

   en.wikipedia.org/wiki/Electrical_conduit

   Aluminum conduit, similar to galvanized steel conduit, is a rigid tube, generally used in commercial and industrial applications where a higher resistance to corrosion is needed. Such locations would include food processing plants, where large amounts of water and cleaning chemicals would make galvanized conduit unsuitable.

7. List of brazing alloys - Wikipedia

   en.wikipedia.org/wiki/List_of_brazing_alloys

   Traces of bismuth and beryllium disrupt the surface aluminium oxide. Strontium refines grain structure of the brazing alloy, improving ductility and toughness. 20: 2: 73: 5: Bi,Be,Sr Al 61.3 Cu 22.5 Zn 9.5 Si 4.5 Ni 1.2 Bi 0.01 Be 0.01 Sr 0.01: Al–Cu–Si 495/505 [5] – For brazing aluminium. Traces of bismuth and beryllium disrupt the ...