{"id":80,"date":"2017-12-26T09:46:51","date_gmt":"2017-12-26T06:46:51","guid":{"rendered":"https:\/\/metallsmaster.ru\/?p=80"},"modified":"2020-11-02T12:09:14","modified_gmt":"2020-11-02T09:09:14","slug":"chugun-s-sharovidnym-grafitom","status":"publish","type":"post","link":"https:\/\/metallsmaster.pro\/es\/hierro-fundido-nodular\/","title":{"rendered":"Hierro fundido nodular"},"content":{"rendered":"<p><strong>Hierro fundido nodular <\/strong>Es un material estructural de alta resistencia con excelentes caracter\u00edsticas de rendimiento. Se a\u00f1ade magnesio durante el proceso de fundici\u00f3n, lo que da como resultado un grafito fundido que no tiene forma de escamas, sino una forma esf\u00e9rica casi perfecta. El resultado <strong>hierro fundido nodular<\/strong> Tiene mejores cualidades que el gris y puede desafiar al acero en algunas propiedades.<\/p>\n<p>El proceso de fundici\u00f3n de aleaciones es bastante sencillo. Quiz\u00e1s el m\u00e9todo m\u00e1s com\u00fan para producir este tipo de hierro fundido sea el proceso de magnesio. Esta tecnolog\u00eda implica a\u00f1adir aleaciones de magnesio y diversos modificadores complejos que contienen magnesio al magnesio met\u00e1lico fundido. Propiedades <strong>fundici\u00f3n de grafito esferoidal <\/strong>Los materiales de fundici\u00f3n son muy diversos, pero este destaca por su excelente combinaci\u00f3n de propiedades de fundici\u00f3n y alta resistencia. Este material es muy d\u00factil, lo que facilita su mecanizado. Presenta una buena resistencia a cargas variables y una baja sensibilidad a los concentradores de tensiones. La estructura met\u00e1lica base puede ser ferr\u00edtica o perl\u00edtica. Los materiales ferr\u00edticos pueden contener hasta 20% de inclusiones de perlita, mientras que los perl\u00edticos pueden contener hasta 20% de ferrita.<\/p>\n<h2>\n\t<!--<div class='top-banner-pages'>\t\n\n\t<\/div>--->\n\t<\/h2>\n<h2>Grados de fundici\u00f3n nodular<\/h2>\n<p>La tecnolog\u00eda de marcado para fundiciones de grafito esferoidal sigue una norma GOST espec\u00edfica y utiliza designaciones tanto num\u00e9ricas como alfab\u00e9ticas. Por ejemplo, la marca &quot;\u0412\u0427&quot; indica fundici\u00f3n de alta resistencia, seguida de n\u00fameros que indican la resistencia a la tracci\u00f3n. Los datos se proporcionan en MPa; para obtener el valor completo, el valor especificado debe multiplicarse por 10.<\/p>\n<p>El s\u00edmbolo puede verse as\u00ed: \u0412\u042750 GOST 7293-85, el n\u00famero 50 indica la resistencia a la tracci\u00f3n de 500 MPa, \u0412\u042745 - resistencia a la tracci\u00f3n de 450 MPa, \u0412\u042780 - resistencia a la tracci\u00f3n de 800 MPa, etc.\u00a0 <strong>Grados de fundici\u00f3n de grafito esferoidal<\/strong> Es f\u00e1cil de cortar, se funde a una temperatura m\u00e1s baja y tiene excelentes propiedades mec\u00e1nicas y de fundici\u00f3n, s\u00f3lo ligeramente peores que el acero. <strong>Grados de fundici\u00f3n nodular <\/strong>\u0412\u0427100-4-3, \u0412\u0427110-6-5 tienen una resistencia a la tracci\u00f3n de 100-120 kgf\/mm<sup>2<\/sup> Seg\u00fan GOST 7293-70. Estos grados se utilizan para la fundici\u00f3n de cig\u00fce\u00f1ales, camisas de cilindros, \u00e1rboles de levas y otros componentes sometidos a cargas elevadas. Los grados de alta resistencia VCh80 y 100 pueden obtenerse mediante microaleaci\u00f3n seguida de la normalizaci\u00f3n de la fundici\u00f3n.<\/p>\n<h3>\n<!---<div class='top-banner-pages'>\n\n<\/div>-->\n\n\t<\/h3>\n<h3>Hierro fundido de alta resistencia con grafito esferoidal<\/h3>\n<p>Gracias a que <strong>hierro d\u00factil con grafito nodular<\/strong> La aleaci\u00f3n presenta inclusiones de grafito nodulares en lugar de lamelares y se caracteriza por su alta resistencia, resistencia al desgaste y buenas propiedades mec\u00e1nicas y de fundici\u00f3n. Debido a esto, <strong>hierro d\u00factil con grafito nodular <\/strong>Se utiliza con mucho \u00e9xito para la producci\u00f3n de piezas cr\u00edticas en ingenier\u00eda mec\u00e1nica: cig\u00fce\u00f1ales y \u00e1rboles de levas, pistones de motores di\u00e9sel, balancines de v\u00e1lvulas, diversas piezas de embrague y otras estructuras que operan bajo cargas altas y variadas.<\/p>\n<p>Los siguientes grados se utilizan para piezas fundidas: VCh35, VCh40, VCh45, VCh50, VCh60, VCh70, VCh80 y VCh100. Tambi\u00e9n se utiliza para fabricar tuber\u00edas de alta resistencia para el suministro de agua, as\u00ed como gasoductos y oleoductos. Las tuber\u00edas fabricadas con este material son muy resistentes, duraderas y se caracterizan por sus excelentes propiedades de rendimiento. Seg\u00fan sus caracter\u00edsticas... <strong>hierro d\u00factil con grafito nodular <\/strong>Corresponde casi en su totalidad a la fundici\u00f3n de grafito esferoidal.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-81 aligncenter\" src=\"https:\/\/metallsmaster.pro\/wp-content\/uploads\/2017\/12\/M_4955233-0-300x282.webp\" alt=\"Pist\u00f3n di\u00e9sel de hierro fundido nodular\" width=\"300\" height=\"282\" srcset=\"https:\/\/metallsmaster.pro\/wp-content\/uploads\/2017\/12\/M_4955233-0-300x282.webp 300w, https:\/\/metallsmaster.pro\/wp-content\/uploads\/2017\/12\/M_4955233-0-202x190.webp 202w, https:\/\/metallsmaster.pro\/wp-content\/uploads\/2017\/12\/M_4955233-0.webp 514w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-82 aligncenter\" src=\"https:\/\/metallsmaster.pro\/wp-content\/uploads\/2017\/12\/camshaft_8v_kl_n1-300x154.webp\" alt=\"\u00e1rbol de levas de hierro fundido\" width=\"300\" height=\"154\" srcset=\"https:\/\/metallsmaster.pro\/wp-content\/uploads\/2017\/12\/camshaft_8v_kl_n1-300x154.webp 300w, https:\/\/metallsmaster.pro\/wp-content\/uploads\/2017\/12\/camshaft_8v_kl_n1-768x395.webp 768w, https:\/\/metallsmaster.pro\/wp-content\/uploads\/2017\/12\/camshaft_8v_kl_n1.webp 1024w, https:\/\/metallsmaster.pro\/wp-content\/uploads\/2017\/12\/camshaft_8v_kl_n1-254x131.webp 254w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>","protected":false},"excerpt":{"rendered":"<p>El hierro fundido nodular es un material estructural de alta resistencia con muy buenas caracter\u00edsticas de rendimiento.<\/p>","protected":false},"author":1,"featured_media":81,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-80","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-metalls"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0427\u0443\u0433\u0443\u043d \u0441 \u0448\u0430\u0440\u043e\u0432\u0438\u0434\u043d\u044b\u043c \u0433\u0440\u0430\u0444\u0438\u0442\u043e\u043c, \u043c\u0430\u0440\u043a\u0438\u0440\u043e\u0432\u043a\u0430, \u043c\u0435\u0442\u043e\u0434\u044b \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u0438 \u0441\u0444\u0435\u0440\u044b \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u044f\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" 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