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- Zinc_pest abstract "Zinc pest (from German Zinkpest), also known as zinc rot, is a destructive, intercrystalline corrosion process of zinc alloys containing lead impurities. While impurities of the alloy are the primary cause of the problem, environmental conditions such as high humidity (greater than 65%) may accelerate the process.It was first discovered to be a problem in 1923, and primarily affects die-cast zinc articles that were manufactured during the 1930s, 1940s, and 1950s. The New Jersey Zinc Company developed zamak alloys in 1929 using 99.99% pure zinc metal to avoid the problem, and articles made after 1960 are usually considered free of the risk of zinc pest since the use of purer materials and more controlled manufacturing conditions make zinc pest degradation unlikely.Affected objects may show surface irregularities such as small cracks and fractures, blisters or pitting. Over time, the material slowly expands, cracking, buckling and warping in an irreversible process that makes the object exceedingly brittle and prone to fracture, and can eventually shatter the object, destroying it altogether. Due to the expansion process, attached normal material may also be damaged. The occurrence and severity of zinc pest in articles made of susceptible zinc alloys depends both on the concentration of lead impurities in the metal and on the storage conditions of the article in the ensuing decades. Zinc pest is dreaded by collectors of vintage die-cast model trains, toys, or radios, because rare or otherwise valuable items can inescapably be rendered worthless as the process of zinc pest destroys them. Because castings of the same object were usually made from various batches of metal over the production process, some examples of a given toy or model may survive today completely unaffected, while other identical examples may have completely disintegrated. Since the 1940s, some model railroad hobbyists have claimed, with varying degrees of success, that a method of \"pickling\" zinc alloy parts by soaking them in vinegar or oxalic acid solution for several minutes before painting and assembling them could prevent or delay the effects of zinc pest. Engine parts of older vehicles or airplanes, and military medals made of zinc alloys may also be affected.Zinc pest is different from a superficial white oxidation process (\"Weissrost\") that may affect some zinc articles, and is not related to tin pest.".
- Zinc_pest thumbnail Märklin_344_-_zinkpest.jpg?width=300.
- Zinc_pest wikiPageID "9891358".
- Zinc_pest wikiPageLength "4272".
- Zinc_pest wikiPageOutDegree "22".
- Zinc_pest wikiPageRevisionID "702061722".
- Zinc_pest wikiPageWikiLink Alloy.
- Zinc_pest wikiPageWikiLink Bronze_disease.
- Zinc_pest wikiPageWikiLink Category:Corrosion.
- Zinc_pest wikiPageWikiLink Category:Zinc.
- Zinc_pest wikiPageWikiLink Collecting.
- Zinc_pest wikiPageWikiLink Corrosion.
- Zinc_pest wikiPageWikiLink Die-cast_toy.
- Zinc_pest wikiPageWikiLink Die_casting.
- Zinc_pest wikiPageWikiLink Horsehead_Corporation.
- Zinc_pest wikiPageWikiLink Humidity.
- Zinc_pest wikiPageWikiLink Irreversible_process.
- Zinc_pest wikiPageWikiLink Oxalic_acid.
- Zinc_pest wikiPageWikiLink Rail_transport_modelling.
- Zinc_pest wikiPageWikiLink Redox.
- Zinc_pest wikiPageWikiLink Tin_pest.
- Zinc_pest wikiPageWikiLink Vinegar.
- Zinc_pest wikiPageWikiLink Zamak.
- Zinc_pest wikiPageWikiLink Zinc.
- Zinc_pest wikiPageWikiLink File:Dinky_liners_with_zinc_pest.jpg.
- Zinc_pest wikiPageWikiLink File:Empire_flying_boat,_Caledonia_(Dinky_Toys_60r).jpg.
- Zinc_pest wikiPageWikiLink File:Märklin_344_-_zinkpest.jpg.
- Zinc_pest wikiPageWikiLinkText "Zinc pest".
- Zinc_pest wikiPageWikiLinkText "zinc pest".
- Zinc_pest wikiPageUsesTemplate Template:Commons_category.
- Zinc_pest wikiPageUsesTemplate Template:Reflist.
- Zinc_pest subject Category:Corrosion.
- Zinc_pest subject Category:Zinc.
- Zinc_pest hypernym Process.
- Zinc_pest type Election.
- Zinc_pest type Element.
- Zinc_pest type Process.
- Zinc_pest comment "Zinc pest (from German Zinkpest), also known as zinc rot, is a destructive, intercrystalline corrosion process of zinc alloys containing lead impurities. While impurities of the alloy are the primary cause of the problem, environmental conditions such as high humidity (greater than 65%) may accelerate the process.It was first discovered to be a problem in 1923, and primarily affects die-cast zinc articles that were manufactured during the 1930s, 1940s, and 1950s.".
- Zinc_pest label "Zinc pest".
- Zinc_pest sameAs Q204878.
- Zinc_pest sameAs Zinkpest.
- Zinc_pest sameAs Zinc_pest.
- Zinc_pest sameAs Zinkpest.
- Zinc_pest sameAs m.02pw20m.
- Zinc_pest sameAs Цинковая_чума.
- Zinc_pest sameAs Q204878.
- Zinc_pest wasDerivedFrom Zinc_pest?oldid=702061722.
- Zinc_pest depiction Märklin_344_-_zinkpest.jpg.
- Zinc_pest isPrimaryTopicOf Zinc_pest.