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The conservation and restoration of outdoor bronze artworks is an activity dedicated to the preservation, protection, and maintenance of bronze objects and artworks that are on view outside. When applied to cultural heritage this activity is generally undertaken by a conservator-restorer .
Steel nuts are strong and great for construction, while stainless steel ones resist rust, perfect for outdoor use. Brass nuts, corrosion -resistant, find their place in electrical and plumbing work. Lock nuts, like nylon-insert or prevailing torque types, prevent loosening due to vibration or torque , catering to specific needs across industries.
Close-up of a pipe flange showing bolts affected by rust in an outdoor environment. Rusty bolts and clamps on an antenna mount experiencing the rusty bolt effect. The rusty bolt effect is a form of radio interference due to interactions of the radio waves with dirty connections or corroded parts. [ 1 ]
In the past, a routine polishing of the brass that secures the lenses would take place. Polishing is an abrasive process that encourages loss of original material. [12] In preventive conservation, the task of brass polishing should not take place. The patina that develops over time also helps create a protective barrier around the brass. [13]
Unlike wear patina necessary in applications such as copper roofing, outdoor copper, bronze, and brass statues and fittings, chemical patina is considered a lot more uneven and undesirable. [2] Patina is the name given to tarnish on copper-based metals, while toning is a term for the type of tarnish which forms on coins.
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Derveni krater, bronze, 350 BC, height: 90.5 cm (35 1 ⁄ 2 in.), Inv. B1, Archaeological Museum of Thessaloniki, after cleaning and conservation. Conservation and restoration of metals is the activity devoted to the protection and preservation of historical (religious, artistic, technical and ethnographic) and archaeological objects made partly or entirely of metal.
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