{"id":6556,"date":"2026-09-28T09:26:01","date_gmt":"2026-09-28T09:26:01","guid":{"rendered":"https:\/\/www.goldprosteelballs.com\/?post_type=goldpro_case&#038;p=6556"},"modified":"2026-11-04T02:52:43","modified_gmt":"2026-11-04T02:52:43","slug":"case-study-of-high-hardness-low-wear-at-a-large-copper-mine","status":"publish","type":"goldpro_case","link":"https:\/\/www.goldprosteelballs.com\/fr\/case\/case-study-of-high-hardness-low-wear-at-a-large-copper-mine\/","title":{"rendered":"\u00c9tude de cas sur la duret\u00e9 \u00e9lev\u00e9e et l'usure faible dans une grande mine de cuivre"},"content":{"rendered":"","protected":false},"excerpt":{"rendered":"<p>Des billes forg\u00e9es haute duret\u00e9 Goldpro (duret\u00e9 superficielle \u2265 60 HRC) ont \u00e9t\u00e9 test\u00e9es comparativement \u00e0 des billes russes de production locale dans un broyeur MQY de 3,6 \u00d7 4,0 m (juin-octobre 2025\u00a0; 180\u00a0200 tonnes trait\u00e9es). La consommation sp\u00e9cifique a diminu\u00e9 de 32,6\u00a0% pour les billes de 100\u00a0mm et de 39,7\u00a0% pour celles de 60\u00a0mm, tandis que le d\u00e9bit et la consommation d\u2019\u00e9nergie sont rest\u00e9s stables.<\/p>","protected":false},"featured_media":5782,"menu_order":0,"template":"","case_mineral":[57],"class_list":["post-6556","goldpro_case","type-goldpro_case","status-publish","has-post-thumbnail","hentry","case_mineral-57"],"_links":{"self":[{"href":"https:\/\/www.goldprosteelballs.com\/fr\/wp-json\/wp\/v2\/goldpro_case\/6556","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.goldprosteelballs.com\/fr\/wp-json\/wp\/v2\/goldpro_case"}],"about":[{"href":"https:\/\/www.goldprosteelballs.com\/fr\/wp-json\/wp\/v2\/types\/goldpro_case"}],"wp:attachment":[{"href":"https:\/\/www.goldprosteelballs.com\/fr\/wp-json\/wp\/v2\/media?parent=6556"}],"wp:term":[{"taxonomy":"case_mineral","embeddable":true,"href":"https:\/\/www.goldprosteelballs.com\/fr\/wp-json\/wp\/v2\/case_mineral?post=6556"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}