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A "gold" nib, however, cannot be entirely composed of gold (ie 24 carats), as mentioned this material is extremely malleable,<ref name=malleabilita_oro>malleable (see [https://simple.wikipedia.org/wiki/Malleability] this Wikipedia entry) is meaning a very soft material, easy to deform without losing its mechanical properties, in essence the exact opposite of strength and flexibility, gold is one of the most malleable materials that exist.</ref> so it is generally strengthened by mixing it as with other metals to obtain 14 carat alloys, which are the most common, or 18 carat, used to give greater value to the pen, but generally less robust. The ancient pens are however for the most part equipped with 14 carat gold nibs, the 18 carats have been introduced only where, as in France, an object with a lower carat could not be qualified as gold for legal reasons.
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A "gold" nib, however, cannot be entirely composed of gold (ie 24 carats), as mentioned this material is extremely malleable,<ref>malleable (see [https://simple.wikipedia.org/wiki/Malleability] this Wikipedia entry) is meaning a very soft material, easy to deform without losing its mechanical properties, in essence the exact opposite of strength and flexibility, gold is one of the most malleable materials that exist.</ref> so it is generally strengthened by mixing it as with other metals to obtain 14 carat alloys, which are the most common, or 18 carat, used to give greater value to the pen, but generally less robust. The ancient pens are however for the most part equipped with 14 carat gold nibs, the 18 carats have been introduced only where, as in France, an object with a lower carat could not be qualified as gold for legal reasons.

Versione delle 17:08, 16 ago 2019

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Definizione del messaggio (Pennino)
Un pennino "d'oro" comunque non può essere interamente composto d'oro (cioè a 24 carati); come accennato questo materiale è estremamente malleabile,<ref name=malleabilita_oro>con malleabile (vedi [http://it.wikipedia.org/wiki/Malleabilit%C3%A0 la voce di Wikipedia]) si intende un materiale molto morbido e facile da deformare senza perdere le sue proprietà meccaniche, in sostanza il contrario esatto di resistenza e flessibilità; l'oro è uno dei materiali più malleabili che esistano.</ref> per cui in genere viene irrobustito mescolandolo come con altri metalli per ottenere leghe a 14 carati, che sono le più comuni, o a 18 carati, usate per dare maggiore preziosità alla penna, ma in genere meno robuste. Leghe a maggior contenuto sono presenti in alcune penne moderne (21 carati) e negli anni '70 in Giappone si è arrivati fino ai 23 carati.<ref>ma non esiste, a parte le esigenze di marketing, nessuna ragione tecnica per spingersi a questi livelli, che comportano comunque leghe meno resistenti.</ref> Le penne antiche sono comunque per la maggior parte dotate di pennini in oro a 14 carati, i 18 carati sono stati introdotti solo dove, come in Francia, per motivi legali non si poteva qualificare come d'oro un oggetto con caratura inferiore a questa.
TraduzioneA "gold" nib, however, cannot be entirely composed of gold (ie 24 carats), as mentioned this material is extremely malleable,<ref>malleable (see [https://simple.wikipedia.org/wiki/Malleability] this Wikipedia entry) is meaning a very soft material, easy to deform without losing its mechanical properties, in essence the exact opposite of strength and flexibility, gold is one of the most malleable materials that exist.</ref> so it is generally strengthened by mixing it as with other metals to obtain 14 carat alloys, which are the most common, or 18 carat, used to give greater value to the pen, but generally less robust. The ancient pens are however for the most part equipped with 14 carat gold nibs, the 18 carats have been introduced only where, as in France, an object with a lower carat could not be qualified as gold for legal reasons.

A "gold" nib, however, cannot be entirely composed of gold (ie 24 carats), as mentioned this material is extremely malleable,[1] so it is generally strengthened by mixing it as with other metals to obtain 14 carat alloys, which are the most common, or 18 carat, used to give greater value to the pen, but generally less robust. The ancient pens are however for the most part equipped with 14 carat gold nibs, the 18 carats have been introduced only where, as in France, an object with a lower carat could not be qualified as gold for legal reasons.

  1. ↑ malleable (see [1] this Wikipedia entry) is meaning a very soft material, easy to deform without losing its mechanical properties, in essence the exact opposite of strength and flexibility, gold is one of the most malleable materials that exist.
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