{"id":1611,"date":"2018-10-10T12:33:19","date_gmt":"2018-10-10T12:33:19","guid":{"rendered":"https:\/\/aboutfoundry.com\/?p=1611"},"modified":"2018-10-16T07:31:17","modified_gmt":"2018-10-16T07:31:17","slug":"starting","status":"publish","type":"post","link":"https:\/\/aboutfoundry.com\/en\/starting\/","title":{"rendered":"Starting"},"content":{"rendered":"\n<p>The starting of induction crucible furnaces varies greatly, depending on the working frequency. There is the starting of a new crucible, and a crucible that has already been in operation, also known as cold starting.<br\/>Starting of a new crucible is also referred to as sintering; this may be liquid sintering following removal of a permanent template, or with a lost template, which remains in the furnace and is also melted. After reaching the maximum filling level, the melt is brought up to approx. 50 \u2013 100 K above the normal tapping temperature, and maintained at this temperature for up to 2 hours for acidic crucibles and for up to 4 hours for neutral and alkaline crucibles. The 1st tapping is then carried out.<\/p>\n\n\n\n<p>When starting damp lined crucibles, the manufacturer\u2019s instructions must be\nstrictly observed, in order to ensure that the damp is driven out. These crucibles\ncannot be charged with molten metal.<br\/>\nMains frequency furnaces without liquid filling must be started using starter\nblocks. The diameter should be approx. 100 mm less than the crucible diameter.\nThe filling height should be about 2\/3 of the coil height.\n<\/p>\n\n\n\n<p>Medium-frequency furnaces without liquid filling can be started using normal\nsteel scrap, although this should not contain any chips, any dimensions greater\nthat 50% of the crucible diameter or any magnetic yokes.\n<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The starting of induction crucible furnaces varies greatly, depending on the working frequency. There is the starting of a new crucible, and a crucible that has already been in operation, also known as cold starting.Starting of a new crucible is also referred to as sintering; this may be liquid sintering following removal of a permanent &hellip; <a href=\"https:\/\/aboutfoundry.com\/en\/starting\/\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Starting<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[2],"tags":[],"class_list":["post-1611","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"acf":{"adresse":"","telefon":"","e-mail":"","webseite":""},"_links":{"self":[{"href":"https:\/\/aboutfoundry.com\/en\/wp-json\/wp\/v2\/posts\/1611","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aboutfoundry.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/aboutfoundry.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/aboutfoundry.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/aboutfoundry.com\/en\/wp-json\/wp\/v2\/comments?post=1611"}],"version-history":[{"count":3,"href":"https:\/\/aboutfoundry.com\/en\/wp-json\/wp\/v2\/posts\/1611\/revisions"}],"predecessor-version":[{"id":2023,"href":"https:\/\/aboutfoundry.com\/en\/wp-json\/wp\/v2\/posts\/1611\/revisions\/2023"}],"wp:attachment":[{"href":"https:\/\/aboutfoundry.com\/en\/wp-json\/wp\/v2\/media?parent=1611"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aboutfoundry.com\/en\/wp-json\/wp\/v2\/categories?post=1611"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aboutfoundry.com\/en\/wp-json\/wp\/v2\/tags?post=1611"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}