{"id":1854,"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=1854"},"modified":"2025-03-11T13:11:35","modified_gmt":"2025-03-11T11:11:35","slug":"tutorial-5-melting-of-precious-metals","status":"publish","type":"product","link":"https:\/\/4h-jewellery-tutorials.com\/en\/product\/tutorial-5-melting-of-precious-metals\/","title":{"rendered":"Tutorial # 5: Melting of precious metals"},"content":{"rendered":"<p data-start=\"197\" data-end=\"608\">In <strong data-start=\"200\" data-end=\"216\">goldsmithing<\/strong>, <strong data-start=\"218\" data-end=\"229\">melting<\/strong> is a crucial step for shaping and refining metals like <strong data-start=\"285\" data-end=\"293\">gold<\/strong>, <strong data-start=\"295\" data-end=\"305\">silver<\/strong>, and <strong data-start=\"311\" data-end=\"323\">platinum<\/strong>. <strong data-start=\"325\" data-end=\"333\">Gold<\/strong> and <strong data-start=\"338\" data-end=\"348\">silver<\/strong> have relatively low <strong data-start=\"369\" data-end=\"387\">melting points<\/strong>, making them easy to melt using an inexpensive <strong data-start=\"435\" data-end=\"446\">propane<\/strong> or <strong data-start=\"450\" data-end=\"469\">acetylene torch<\/strong>. When melting these metals, <strong data-start=\"498\" data-end=\"506\">flux<\/strong> is applied to help remove impurities and prevent oxidation, ensuring a clean and smooth molten state.<\/p>\n<p data-start=\"610\" data-end=\"799\"><strong data-start=\"610\" data-end=\"618\">Gold<\/strong> melts at around <strong data-start=\"635\" data-end=\"645\">1064\u00b0C<\/strong> (1947\u00b0F), while <strong data-start=\"662\" data-end=\"672\">silver<\/strong> melts at approximately <strong data-start=\"696\" data-end=\"705\">962\u00b0C<\/strong> (1764\u00b0F). Once heated, the metals contract into a drop, ready for pouring or further shaping.<\/p>\n<p data-start=\"801\" data-end=\"1173\"><strong data-start=\"801\" data-end=\"813\">Platinum<\/strong>, however, presents a challenge due to its much higher <strong data-start=\"868\" data-end=\"885\">melting point<\/strong> of about <strong data-start=\"895\" data-end=\"905\">1770\u00b0C<\/strong> (3218\u00b0F). Melting <strong data-start=\"924\" data-end=\"936\">platinum<\/strong> requires a specialized torch, such as an <strong data-start=\"978\" data-end=\"1001\">oxy-acetylene flame<\/strong>, capable of reaching these extreme temperatures. This makes <strong data-start=\"1062\" data-end=\"1074\">platinum<\/strong> more difficult to work with, but also contributes to its durability and value in fine <strong data-start=\"1161\" data-end=\"1172\">jewelry<\/strong>.<\/p>\n<p data-start=\"1175\" data-end=\"1352\">Whether working with <strong data-start=\"1196\" data-end=\"1204\">gold<\/strong>, <strong data-start=\"1206\" data-end=\"1216\">silver<\/strong>, or <strong data-start=\"1221\" data-end=\"1233\">platinum<\/strong>, mastering the <strong data-start=\"1249\" data-end=\"1268\">melting process<\/strong> is essential for <strong data-start=\"1286\" data-end=\"1300\">goldsmiths<\/strong> to create high-quality, durable <strong data-start=\"1333\" data-end=\"1351\">jewelry pieces<\/strong>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Gold and silver can be melted down with a relatively inexpensive flame. Flux is applied to the metal and then heated until it contracts into a drop. A flame with a higher burning temperature is required for platinum, as platinum only melts when reaching a temperature of approx. 1700 degrees Celsius. [...]<\/p>","protected":false},"featured_media":1858,"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":[38],"product_tag":[],"class_list":["post-1854","product","type-product","status-publish","has-post-thumbnail","product_cat-basics","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\/en\/wp-json\/wp\/v2\/product\/1854","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/4h-jewellery-tutorials.com\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/4h-jewellery-tutorials.com\/en\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/4h-jewellery-tutorials.com\/en\/wp-json\/wp\/v2\/media\/1858"}],"wp:attachment":[{"href":"https:\/\/4h-jewellery-tutorials.com\/en\/wp-json\/wp\/v2\/media?parent=1854"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/4h-jewellery-tutorials.com\/en\/wp-json\/wp\/v2\/product_brand?post=1854"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/4h-jewellery-tutorials.com\/en\/wp-json\/wp\/v2\/product_cat?post=1854"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/4h-jewellery-tutorials.com\/en\/wp-json\/wp\/v2\/product_tag?post=1854"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}