{"id":1857,"date":"2025-03-09T08:45:00","date_gmt":"2025-03-09T06:45:00","guid":{"rendered":"https:\/\/4h-jewellery-tutorials.com\/?post_type=product&#038;p=1857"},"modified":"2025-03-11T13:13:31","modified_gmt":"2025-03-11T11:13:31","slug":"tutorial-5-fondere-di-metalli-preziosi","status":"publish","type":"product","link":"https:\/\/4h-jewellery-tutorials.com\/it\/prodotto\/tutorial-5-fondere-di-metalli-preziosi\/","title":{"rendered":"Tutorial # 5: Fondere di metalli preziosi"},"content":{"rendered":"<p data-start=\"197\" data-end=\"608\">Nell&#8217;<strong data-start=\"200\" data-end=\"216\">oreficeria<\/strong>, fondere \u00e8 una fase cruciale per modellare e raffinare metalli come l&#8217;<strong data-start=\"285\" data-end=\"293\">oro<\/strong>, l&#8217;<strong data-start=\"295\" data-end=\"305\">argento<\/strong> e il <strong data-start=\"311\" data-end=\"323\">platino<\/strong>. L <strong data-start=\"325\" data-end=\"333\">&#8216;oro<\/strong> e l&#8217;<strong data-start=\"338\" data-end=\"348\">argento<\/strong> hanno <strong data-start=\"369\" data-end=\"387\">punti di fondere<\/strong> relativamente bassi, il che li rende facili da fondere con una <strong data-start=\"450\" data-end=\"469\">torcia<\/strong> economica <strong data-start=\"435\" data-end=\"446\">a propano<\/strong> o <strong data-start=\"450\" data-end=\"469\">acetilene<\/strong>. Quando si fondono questi metalli, si applica un <strong data-start=\"498\" data-end=\"506\">fondente<\/strong> che aiuta a rimuovere le impurit\u00e0 e a prevenire l&#8217;ossidazione, assicurando uno stato fuso pulito e liscio. <\/p>\n<p data-start=\"610\" data-end=\"799\"><strong data-start=\"610\" data-end=\"618\">L&#8217;oro<\/strong> fonde a circa <strong data-start=\"635\" data-end=\"645\">1064\u00b0C<\/strong> (1947\u00b0F), mentre l&#8217;<strong data-start=\"662\" data-end=\"672\">argento<\/strong> fonde a circa <strong data-start=\"696\" data-end=\"705\">962\u00b0C<\/strong> (1764\u00b0F). Una volta riscaldati, i metalli si contraggono in una goccia, pronta per essere versata o modellata ulteriormente. <\/p>\n<p data-start=\"801\" data-end=\"1173\">Il <strong data-start=\"801\" data-end=\"813\">platino<\/strong>, tuttavia, rappresenta una sfida a causa del suo <strong data-start=\"868\" data-end=\"885\">punto di fondere<\/strong> molto pi\u00f9 elevato, pari a circa <strong data-start=\"895\" data-end=\"905\">1770\u00b0C<\/strong> (3218\u00b0F). Fondere <strong data-start=\"924\" data-end=\"936\">del platino<\/strong> richiede una torcia specializzata, come una <strong data-start=\"978\" data-end=\"1001\">fiamma ossiacetilenica<\/strong>, in grado di raggiungere queste temperature estreme. Questo rende il <strong data-start=\"1062\" data-end=\"1074\">platino<\/strong> pi\u00f9 difficile da lavorare, ma contribuisce anche alla sua durata e al suo valore nella <strong data-start=\"1161\" data-end=\"1172\">gioielleria<\/strong>.  <\/p>\n<p data-start=\"1175\" data-end=\"1352\">Sia che lavori con l&#8217;<strong data-start=\"1196\" data-end=\"1204\">oro<\/strong>, l&#8217;<strong data-start=\"1206\" data-end=\"1216\">argento<\/strong> o il <strong data-start=\"1221\" data-end=\"1233\">platino<\/strong>, la padronanza del <strong data-start=\"1249\" data-end=\"1268\">processo di fondere<\/strong> \u00e8 essenziale per gli <strong data-start=\"1286\" data-end=\"1300\">orafi<\/strong> per creare <strong data-start=\"1333\" data-end=\"1351\">gioielli<\/strong> di alta qualit\u00e0 e di lunga durata.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>L&#8216;oro e l&#8217;argento possono essere fusi con una fiamma relativamente economica. Il flusso viene applicato al metallo e poi riscaldato fino a quando si contrae in una goccia. Per il platino \u00e8 necessaria una fiamma con una temperatura di combustione pi\u00f9 elevata, in quanto il platino si fonde solo quando raggiunge una temperatura di circa 1700 gradi Celsius. [...]<\/p>","protected":false},"featured_media":1861,"template":"","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"product_brand":[],"product_cat":[65],"product_tag":[],"class_list":["post-1857","product","type-product","status-publish","has-post-thumbnail","product_cat-nozioni-base","desktop-align-left","tablet-align-left","mobile-align-left","first","instock","virtual","taxable","purchasable","product-type-simple"],"acf":[],"_links":{"self":[{"href":"https:\/\/4h-jewellery-tutorials.com\/it\/wp-json\/wp\/v2\/product\/1857","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/4h-jewellery-tutorials.com\/it\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/4h-jewellery-tutorials.com\/it\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/4h-jewellery-tutorials.com\/it\/wp-json\/wp\/v2\/media\/1861"}],"wp:attachment":[{"href":"https:\/\/4h-jewellery-tutorials.com\/it\/wp-json\/wp\/v2\/media?parent=1857"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/4h-jewellery-tutorials.com\/it\/wp-json\/wp\/v2\/product_brand?post=1857"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/4h-jewellery-tutorials.com\/it\/wp-json\/wp\/v2\/product_cat?post=1857"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/4h-jewellery-tutorials.com\/it\/wp-json\/wp\/v2\/product_tag?post=1857"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}