{"id":10585,"date":"2017-02-23T10:27:19","date_gmt":"2017-02-23T07:27:19","guid":{"rendered":"https:\/\/energosteel.com\/the-correct-definition-5-th-hardness-group-of-grinding-balls\/"},"modified":"2025-12-31T13:35:40","modified_gmt":"2025-12-31T10:35:40","slug":"the-correct-definition-5-th-hardness-group-of-grinding-balls","status":"publish","type":"post","link":"https:\/\/energosteel.com\/es\/the-correct-definition-5-th-hardness-group-of-grinding-balls\/","title":{"rendered":"La correcta definici\u00f3n del quinto grupo de dureza de las bolas de molienda"},"content":{"rendered":"<p style=\"text-indent: 20px;\" align=\"justify\">Hemos escrito sobre la correcta definici\u00f3n del <a href=\"https:\/\/energosteel.com\/the-correct-definition-the-hardness-group-of-grinding-balls\/\" target=\"_blank\" rel=\"noopener\">grupo de dureza de las bolas de molienda<\/a> en el <a href=\"https:\/\/energosteel.com\/en\/pomolnyie-sharyi-gruppa-tvyordosti\/\">art\u00edculo<\/a>. Aqu\u00ed queremos llamar su atenci\u00f3n sobre los matices en la medici\u00f3n de la dureza de las bolas de molienda con alta <a href=\"https:\/\/energosteel.com\/library\/hardness\/\" target=\"_blank\" rel=\"noopener\">dureza volum\u00e9trica<\/a>.<\/p>\n<p style=\"text-indent: 20px;\" align=\"justify\">Para confirmar la conformidad de una bola de molienda con el quinto grupo de dureza, es necesario preparar una plataforma de superficie plana eliminando metal de la bola de molienda hasta una profundidad <strong>R<\/strong> (radio) por un lado y hasta una profundidad de <strong>0,5 R<\/strong> por el otro lado (Figura 1).<\/p>\n<p style=\"text-align: center;\"><img decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/energosteel.com\/wp-content\/uploads\/2017\/02\/20170223_1.jpg\" \/><\/p>\n<p style=\"text-align: center;\"><strong>Figura 1. Preparaci\u00f3n de la plataforma para la medici\u00f3n de la dureza de una bola de molienda \u00d840 mm a una profundidad R<\/strong><\/p>\n<p style=\"text-indent: 20px;\" align=\"justify\">La medici\u00f3n de la dureza en todas las partes del radio de la bola de molienda se realiza de acuerdo con la Figura 2.<\/p>\n<p style=\"text-align: center;\"><img decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/energosteel.com\/wp-content\/uploads\/2017\/02\/20170223_2.jpg\" \/><\/p>\n<p style=\"text-align: center;\"><strong>Figura 2. Esquema de realizaci\u00f3n de la medici\u00f3n de la dureza en la plataforma de la bola de molienda (profundidad R)<\/strong><\/p>\n<p style=\"text-indent: 20px;\" align=\"justify\">La <a href=\"https:\/\/energosteel.com\/library\/volumetric-hardness-of-grinding-balls\/\" target=\"_blank\" rel=\"noopener\">dureza volum\u00e9trica<\/a> (VH) se determina como la suma de los valores medidos de la bola de molienda de la <a href=\"https:\/\/energosteel.com\/library\/surface-hardness-of-grinding-balls\/\" target=\"_blank\" rel=\"noopener\">dureza superficial<\/a> (\u0422<sub>surf<\/sub>); la <a href=\"https:\/\/energosteel.com\/library\/grinding-ball-hardness-at-025r\/\" target=\"_blank\" rel=\"noopener\">dureza a 0,25 R<\/a> (\u0422<sub>0,25<\/sub>); la <a href=\"https:\/\/energosteel.com\/library\/grinding-ball-hardness-at-05r\/\" target=\"_blank\" rel=\"noopener\">dureza a 0,5 R<\/a> (\u0422<sub>0,5<\/sub>); la <a href=\"https:\/\/energosteel.com\/library\/grinding-ball-hardness-at-075r\/\" target=\"_blank\" rel=\"noopener\">dureza a 0,75 R<\/a> (\u0422<sub>0,75<\/sub>) y la <a href=\"https:\/\/energosteel.com\/library\/grinding-ball-hardness-in-the-center\/\" target=\"_blank\" rel=\"noopener\">dureza en el centro<\/a> (\u0422<sub>c<\/sub>). La dureza volum\u00e9trica (VH) se calcula mediante la f\u00f3rmula:<\/p>\n<p style=\"text-align: center;\"><strong>VH = 0,289 <\/strong><strong>\u0422<\/strong><strong><sub>surf<\/sub><\/strong><strong> + 0,436 <\/strong><strong>\u0422<\/strong><strong><sub>0,25<\/sub><\/strong><strong> + 0,203<\/strong><strong>\u0422<\/strong><strong><sub>0,5<\/sub><\/strong><strong> + 0,063<\/strong><strong>\u0422<\/strong><strong><sub>0,75<\/sub><\/strong><strong> + 0,009 <\/strong><strong>\u0422<\/strong><strong><sub>c<\/sub><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Hemos escrito sobre la correcta definici\u00f3n del grupo de dureza de las bolas de molienda en el art\u00edculo. Aqu\u00ed queremos llamar su atenci\u00f3n sobre los matices<span class=\"excerpt-hellip\"> [\u2026]<\/span><\/p>\n","protected":false},"author":4,"featured_media":10586,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[170,173],"tags":[],"class_list":["post-10585","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-control-de-calidad","category-arhiv"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.1.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>La correcta definici\u00f3n del quinto grupo de dureza de las bolas de molienda<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/energosteel.com\/es\/the-correct-definition-5-th-hardness-group-of-grinding-balls\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"THE CORRECT DEFINITION 5-TH HARDNESS GROUP OF GRINDING BALLS\" \/>\n<meta property=\"og:description\" content=\"For conformity grinding ball to the fifth hardness group needs to prepare a flat surface platform. 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