{"id":779,"date":"2026-04-11T03:02:59","date_gmt":"2026-04-11T03:02:59","guid":{"rendered":"https:\/\/sjnbcasting.com\/?p=779"},"modified":"2026-04-20T03:08:06","modified_gmt":"2026-04-20T03:08:06","slug":"manufacturing-processes-and-considerations-for-ferrous-casting","status":"publish","type":"post","link":"https:\/\/sjnbcasting.com\/es\/manufacturing-processes-and-considerations-for-ferrous-casting\/","title":{"rendered":"Procesos de fabricaci\u00f3n y aspectos a tener en cuenta en la fundici\u00f3n de metales ferrosos"},"content":{"rendered":"<p>La fundici\u00f3n de metales ferrosos es un proceso de fabricaci\u00f3n fundamental que consiste en verter aleaciones ferrosas fundidas (principalmente aleaciones a base de hierro) en un molde prefabricado, seguido de un enfriamiento y solidificaci\u00f3n para formar piezas fundidas con formas, tama\u00f1os y propiedades mec\u00e1nicas espec\u00edficas.<\/p>\n<p>Como tecnolog\u00eda fundamental en la industria manufacturera, se aplica ampliamente en diversos campos debido a su rentabilidad, adaptabilidad y capacidad para producir componentes de formas complejas.<\/p>\n<div data-page-id=\"Pxy7dEQweoPQJVxa0T2cFXRJnIh\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\">\n<h2 class=\"old-record-id-SaTjfbSOKdzCvecmlUscekT0nB1\">Principales tipos y aplicaciones de la fundici\u00f3n de metales ferrosos<\/h2>\n<div>\n<div data-page-id=\"Pxy7dEQweoPQJVxa0T2cFXRJnIh\" data-lark-html-role=\"root\" data-docx-has-block-data=\"true\">\n<table style=\"border-collapse: collapse; width: 641px; height: 472px;\" border=\"0\" width=\"207\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr style=\"height: 14.0pt;\">\n<td style=\"height: 14pt; width: 184.021px;\" height=\"19\">Tipo<\/td>\n<td style=\"width: 245.615px;\">Caracter\u00edsticas principales<\/td>\n<td style=\"width: 208.698px;\">Aplicaciones t\u00edpicas<\/td>\n<\/tr>\n<tr style=\"height: 14.0pt;\">\n<td style=\"height: 14pt; width: 184.021px;\" height=\"19\">Hierro fundido gris<\/td>\n<td style=\"width: 245.615px;\">Grafito laminar, buena absorci\u00f3n de impactos, f\u00e1cil de procesar, bajo costo<\/td>\n<td style=\"width: 208.698px;\">Bloques de motor, discos de freno, bancadas de m\u00e1quinas herramienta, carcasas de bombas<\/td>\n<\/tr>\n<tr style=\"height: 14.0pt;\">\n<td style=\"height: 14pt; width: 184.021px;\" height=\"19\">Hierro d\u00factil<\/td>\n<td style=\"width: 245.615px;\">Tratamiento de esferoidizaci\u00f3n, grafito esf\u00e9rico, excelente resistencia y tenacidad<\/td>\n<td style=\"width: 208.698px;\">Cig\u00fce\u00f1ales, engranajes, tuber\u00edas de alta presi\u00f3n, tapas de alcantarilla<\/td>\n<\/tr>\n<tr style=\"height: 14.0pt;\">\n<td style=\"height: 14pt; width: 184.021px;\" height=\"19\">Hierro fundido blanco<\/td>\n<td style=\"width: 245.615px;\">Alta dureza, buena resistencia al desgaste, extremadamente fr\u00e1gil<\/td>\n<td style=\"width: 208.698px;\">Bolas de molienda, revestimientos para molinos, piezas resistentes al desgaste<\/td>\n<\/tr>\n<tr style=\"height: 14.0pt;\">\n<td style=\"height: 14pt; width: 184.021px;\" height=\"19\">Hierro fundido maleable<\/td>\n<td style=\"width: 245.615px;\">Recocido para obtener grafito floculento, de buena tenacidad<\/td>\n<td style=\"width: 208.698px;\">Accesorios para tuber\u00edas, soportes, piezas para maquinaria agr\u00edcola<\/td>\n<\/tr>\n<tr style=\"height: 14.0pt;\">\n<td style=\"height: 14pt; width: 184.021px;\" height=\"19\">Acero fundido<\/td>\n<td style=\"width: 245.615px;\">Bajo contenido en carbono, alta resistencia, buena resistencia al impacto<\/td>\n<td style=\"width: 208.698px;\">Estructuras de alta resistencia, maquinaria de construcci\u00f3n, recipientes a presi\u00f3n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Flujo del proceso de fundici\u00f3n de metales ferrosos<\/h2>\n<p>La fundici\u00f3n de metales ferrosos se refiere principalmente a la producci\u00f3n de piezas de fundici\u00f3n de hierro y acero. El flujo general del proceso es similar. A continuaci\u00f3n se presenta un proceso de producci\u00f3n ordenado y claro, adecuado para documentos t\u00e9cnicos o para la comunicaci\u00f3n con clientes extranjeros.<\/p>\n<h3>I. Descripci\u00f3n general del flujo del proceso<\/h3>\n<p>1. Dise\u00f1o de procesos y fabricaci\u00f3n de moldes<br \/>\n2. Moldeado \/ Fabricaci\u00f3n de n\u00facleos<br \/>\n3. Fundici\u00f3n de hierro fundido \/ acero fundido<br \/>\n4. Verter<br \/>\n5. Sacudida y limpieza<br \/>\n6. Tratamiento t\u00e9rmico<br \/>\n7. Acabado, inspecci\u00f3n y almacenamiento<\/p>\n<h3>II. Descripci\u00f3n detallada de los pasos<\/h3>\n<p>1. Dise\u00f1o de procesos y fabricaci\u00f3n de moldes<br \/>\n&#8211; Design the casting process according to the part drawing: determine the gating system, riser, shrinkage rate, wall thickness, etc.<br \/>\n&#8211; Make wooden molds\/metal molds\/plastic molds.<br \/>\n&#8211; For investment casting (<a href=\"https:\/\/sjnbcasting.com\/es\/what-is-the-temperature-control-for-precision-casting-of-stainless-steel\/\" data-wpil-monitor-id=\"107\">fundici\u00f3n de precisi\u00f3n<\/a>), primero haz los modelos de cera.<\/p>\n<p>2. Moldeado y fabricaci\u00f3n de n\u00facleos<br \/>\n&#8211; Molding: Make the mold using molding sand, resin sand, sodium silicate sand, etc.<br \/>\n&#8211; Core making: Make the sand core to form the internal cavity structure of the casting.<br \/>\n&#8211; Assemble the mold and lock it for pouring.<\/p>\n<p>3. Fundici\u00f3n de metales ferrosos<br \/>\n&#8211; Melt pig iron, return scrap, and steel in equipment such as cupola and intermediate frequency electric furnace.<br \/>\n&#8211; Adjust the composition: carbon, silicon, manganese, sulfur, phosphorus and alloying elements.<br \/>\n&#8211; For ductile iron, spheroidization treatment and inoculation treatment are also required.<\/p>\n<p>4. Colada de fundici\u00f3n ferrosa<br \/>\n&#8211; Pour high-temperature molten iron\/molten steel (about 1350\u20131450\u2103 for cast iron, higher for cast steel) into the mold.<br \/>\n&#8211; Control the pouring temperature and speed to avoid blowholes, inclusions and insufficient pouring.<\/p>\n<p>5. Sacudida y limpieza<br \/>\n&#8211; After the casting is cooled, unpack and shake out to remove the molding sand.<br \/>\n&#8211; Cut off the gating system and riser.<br \/>\n&#8211; Remove surface oxide scale and burrs by shot blasting\/sand blasting.<\/p>\n<p>6. Tratamiento t\u00e9rmico<br \/>\nTanto el hierro fundido como el acero fundido suelen requerir un tratamiento t\u00e9rmico para mejorar su rendimiento:<br \/>\n&#8211; Gray cast iron: Stress relief annealing<br \/>\n&#8211; Ductile iron: Annealing, normalizing, quenching and tempering<br \/>\n&#8211; Cast steel: Normalizing, tempering, quenching and tempering, etc.<br \/>\nObjetivo: Mejorar la resistencia y la dureza, eliminar la tensi\u00f3n interna y estabilizar las dimensiones.<\/p>\n<p>7. Acabado e inspecci\u00f3n<br \/>\n&#8211; Grind and correct deformation.<br \/>\n&#8211; Dimensional inspection and mechanical property testing.<br \/>\n&#8211; Non-destructive testing (UT\/MT\/PT, etc.).<br \/>\n&#8211; After passing the inspection, it can be machined or delivered directly.<\/p>\n<h3>III. Breve resumen (apto para su difusi\u00f3n externa)<\/h3>\n<p>El proceso de fundici\u00f3n de metales ferrosos es el siguiente: Primero se fabrica el molde \u2192 Se prepara el molde de arena \u2192 Se funde el hierro o el acero \u2192 Se vierte en la cavidad para que se enfr\u00ede \u2192 Se limpia la arena y se retiran los canales de colada y los elevadores \u2192 Se refuerza mediante tratamiento t\u00e9rmico \u2192 Se inspecciona y se entrega una vez superado el control de calidad.<\/p>\n<p><a href=\"https:\/\/sjnbcasting.com\/es\/solution\/\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-781 size-full\" src=\"https:\/\/sjnbcasting.com\/wp-content\/uploads\/2026\/04\/Manufacturing-Processes-and-Considerations-for-Ferrous-Casting-2.jpg\" alt=\"Manufacturing Processes and Considerations for Ferrous Casting\" width=\"800\" height=\"500\" srcset=\"https:\/\/sjnbcasting.com\/wp-content\/uploads\/2026\/04\/Manufacturing-Processes-and-Considerations-for-Ferrous-Casting-2.jpg 800w, https:\/\/sjnbcasting.com\/wp-content\/uploads\/2026\/04\/Manufacturing-Processes-and-Considerations-for-Ferrous-Casting-2-480x300.jpg 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) 800px, 100vw\" \/><\/a><\/p>\n<\/div>\n<h2>Puntos clave para el moldeo y la fabricaci\u00f3n de n\u00facleos en la fundici\u00f3n de metales ferrosos<\/h2>\n<p>En la fundici\u00f3n de metales ferrosos (incluidos el hierro fundido y el acero fundido), el moldeo y la fabricaci\u00f3n de n\u00facleos son los dos procesos m\u00e1s cr\u00edticos que determinan el aspecto, la precisi\u00f3n dimensional y los defectos internos de las piezas fundidas. Una falta de cuidado en cualquiera de estos procesos puede provocar f\u00e1cilmente defectos como poros de aire, inclusiones de arena, deformaciones, adherencia de arena y desviaciones dimensionales.<\/p>\n<p>A continuaci\u00f3n se enumeran los puntos clave que deben tenerse en cuenta en la producci\u00f3n real; son concisos, pr\u00e1cticos y adecuados para incluirlos en documentos t\u00e9cnicos o en la comunicaci\u00f3n con clientes extranjeros.<\/p>\n<h3>Puntos clave del proceso de moldeo en la fundici\u00f3n de metales ferrosos<\/h3>\n<p>1. Control de las propiedades de la arena de moldeo<br \/>\n&#8211; Maintain stable strength, air permeability, moisture content, and compactness of molding sand.<br \/>\n&#8211; Excessive moisture content will cause blowholes; insufficient moisture content will lead to poor collapsibility of molding sand and easy sand sticking.<br \/>\n&#8211; Insufficient air permeability will prevent gas from being discharged during pouring, resulting in blowholes and mold gassing.<\/p>\n<p>2. Manipulaci\u00f3n de patrones (moldes)<br \/>\n&#8211; The surface of the pattern must be smooth, and a parting agent\/release agent should be properly applied to prevent mold sticking.<br \/>\n&#8211; Check the pattern size, fillet, and draft angle to avoid mold cavity damage during pattern drawing.<br \/>\n&#8211; Timely correct deformed patterns; otherwise, castings will have dimensional deviation.<\/p>\n<p>3. Relleno con arena y compactaci\u00f3n<br \/>\n&#8211; Compact the sand layer by layer to avoid local looseness or excessive hardness.<br \/>\n&#8211; Loose sand will cause sand washing, sand inclusions, and mold collapse.<br \/>\n&#8211; Excessively compacted sand will result in poor air permeability and blowholes.<br \/>\n&#8211; Focus on compacting corners and thin ribs to prevent sand washing.<\/p>\n<p>4. Dise\u00f1o de patrones y reparaci\u00f3n de moldes<br \/>\n&#8211; Draw the pattern stably and vertically to avoid scratching the mold cavity.<br \/>\n&#8211; Timely repair sand loss, cracks, and loose parts of the mold cavity.<br \/>\n&#8211; The surface of the mold cavity should be flat and smooth to reduce flash and burrs.<\/p>\n<p>5. Sistema de compuertas, conductos ascendentes y ventilaci\u00f3n<br \/>\n&#8211; The position, size, and direction of the gating system should be reasonable to avoid direct flushing of the molding sand.<br \/>\n&#8211; The riser should be properly arranged to ensure feeding and prevent shrinkage cavities and shrinkage porosity.<br \/>\n&#8211; The venting channel should be unobstructed to avoid air trapping and blowhole defects.<\/p>\n<p>6. Montaje y posicionamiento del molde<br \/>\n&#8211; Ensure accurate positioning of the upper and lower molds to prevent mold shift and core deviation.<br \/>\n&#8211; Seal the mold assembly gap well to prevent metal runout and flash.<br \/>\n&#8211; Clean the floating sand in the mold cavity after assembly to avoid sand inclusions.<\/p>\n<h3>Puntos clave del proceso de fabricaci\u00f3n de n\u00facleos en la fundici\u00f3n de metales ferrosos<\/h3>\n<p>1. Propiedades de la arena de moldeo<br \/>\n&#8211; Core sand should have high strength, high temperature resistance, and good collapsibility.<br \/>\n&#8211; Cast iron and cast steel have high pouring temperatures; core sand with poor high-temperature resistance will cause sand sticking and sintering.<br \/>\n&#8211; Air permeability must be excellent, as cores are most prone to blowhole defects.<\/p>\n<p>2. Refuerzo del n\u00facleo y ventilaci\u00f3n<br \/>\n&#8211; The core reinforcement (core wire) should have sufficient strength to prevent core deformation and fracture.<br \/>\n&#8211; Venting holes or venting channels must be drilled to ensure gas discharge.<br \/>\n&#8211; Poor gas discharge will lead to severe internal blowholes and pinholes in castings.<\/p>\n<p>3. Tama\u00f1o y deformaci\u00f3n del n\u00facleo<br \/>\n&#8211; Control the core size during core making to prevent warpage and deformation.<br \/>\n&#8211; Long and thin cores and cantilever cores should be supported to avoid floating and deviation during pouring.<br \/>\n&#8211; Core deviation will directly cause uneven wall thickness and scrapping of castings.<\/p>\n<p>4. Secado y tratamiento de superficies<br \/>\n&#8211; Cores must be fully dried; moisture is the primary source of blowholes.<br \/>\n&#8211; Apply coating (graphite coating, zircon powder coating, etc.) on the core surface:<br \/>\nPara evitar que la arena se pegue;<br \/>\nPara mejorar el acabado superficial de las piezas fundidas.<\/p>\n<p>5. Colocaci\u00f3n y fijaci\u00f3n del n\u00facleo<br \/>\n&#8211; Set the core in the correct position to ensure uniform wall thickness of the casting.<br \/>\n&#8211; Fix the core firmly to prevent floating and deviation caused by the buoyancy of molten metal.<br \/>\n&#8211; Seal the core print gap to prevent metal runout and burrs.<\/p>\n<p><a href=\"https:\/\/sjnbcasting.com\/es\/solution\/\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-780 size-full\" src=\"https:\/\/sjnbcasting.com\/wp-content\/uploads\/2026\/04\/Manufacturing-Processes-and-Considerations-for-Ferrous-Casting-1.jpg\" alt=\"Manufacturing Processes and Considerations for Ferrous Casting\" width=\"800\" height=\"500\" srcset=\"https:\/\/sjnbcasting.com\/wp-content\/uploads\/2026\/04\/Manufacturing-Processes-and-Considerations-for-Ferrous-Casting-1.jpg 800w, https:\/\/sjnbcasting.com\/wp-content\/uploads\/2026\/04\/Manufacturing-Processes-and-Considerations-for-Ferrous-Casting-1-480x300.jpg 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) 800px, 100vw\" \/><\/a><\/p>\n<h2>Resumen de <a href=\"https:\/\/www.linkedin.com\/company\/ningbo-suijin-casting\" target=\"_blank\" rel=\"noopener\">Suijin Casting<\/a><\/h2>\n<p>En resumen, la fundici\u00f3n de metales ferrosos es un proceso confiable, eficiente y rentable <a href=\"https:\/\/sjnbcasting.com\/es\/what-is-the-manufacturing-process-of-cores-in-sand-casting\/\" data-wpil-monitor-id=\"108\">proceso de fabricaci\u00f3n<\/a>, que desempe\u00f1a un papel importante en la industria manufacturera mundial y seguir\u00e1 evolucionando con los avances tecnol\u00f3gicos para satisfacer los requisitos de calidad y rendimiento cada vez m\u00e1s exigentes de diversos sectores.<\/p>\n<p>Los puntos fundamentales del moldeado y la fabricaci\u00f3n de n\u00facleos se pueden resumir en tres frases:<br \/>\n1. Las propiedades de la arena de moldeo y de noyos son estables, y su permeabilidad al aire, resistencia mec\u00e1nica y resistencia a altas temperaturas cumplen con las normas.<br \/>\n2. La cavidad y el n\u00facleo del molde presentan dimensiones precisas, una compactaci\u00f3n uniforme y una ventilaci\u00f3n sin obstrucciones.<br \/>\n3. El conjunto del molde y la colocaci\u00f3n del n\u00facleo se posicionan con precisi\u00f3n y se sellan firmemente para evitar que el n\u00facleo se desplace, que el molde se mueva y que la arena se lave.<\/p>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Ferrous casting is a fundamental manufacturing process that involves pouring molten ferrous alloys (primarily iron-based alloys) into a prefabricated mold, followed by cooling and solidification to form castings with specific shapes, sizes, and mechanical properties. As a core technology in the manufacturing industry, it is widely applied in various fields due to its cost-effectiveness, adaptability, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":626,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[24],"tags":[],"class_list":["post-779","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge"],"jetpack_featured_media_url":"https:\/\/sjnbcasting.com\/wp-content\/uploads\/2026\/02\/Metal-Prototype-Casting-Process-Principles-Steps-and-Applications.jpg","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/sjnbcasting.com\/es\/wp-json\/wp\/v2\/posts\/779","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sjnbcasting.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sjnbcasting.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sjnbcasting.com\/es\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/sjnbcasting.com\/es\/wp-json\/wp\/v2\/comments?post=779"}],"version-history":[{"count":3,"href":"https:\/\/sjnbcasting.com\/es\/wp-json\/wp\/v2\/posts\/779\/revisions"}],"predecessor-version":[{"id":784,"href":"https:\/\/sjnbcasting.com\/es\/wp-json\/wp\/v2\/posts\/779\/revisions\/784"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sjnbcasting.com\/es\/wp-json\/wp\/v2\/media\/626"}],"wp:attachment":[{"href":"https:\/\/sjnbcasting.com\/es\/wp-json\/wp\/v2\/media?parent=779"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sjnbcasting.com\/es\/wp-json\/wp\/v2\/categories?post=779"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sjnbcasting.com\/es\/wp-json\/wp\/v2\/tags?post=779"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}