{"id":21291,"date":"2026-10-08T08:18:03","date_gmt":"2026-10-08T00:18:03","guid":{"rendered":"https:\/\/aobosteel.com\/?page_id=21291"},"modified":"2026-10-16T16:21:03","modified_gmt":"2026-10-16T08:21:03","slug":"permanent-mold-and-core-materials","status":"publish","type":"page","link":"https:\/\/aobosteel.com\/es\/permanent-mold-and-core-materials\/","title":{"rendered":"Materiales para moldes permanentes y machos para colada por gravedad en molde met\u00e1lico"},"content":{"rendered":"<h1 class=\"wp-block-heading\">Materiales para moldes permanentes y machos para colada por gravedad en molde met\u00e1lico<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">La colada en molde permanente, tambi\u00e9n llamada colada por gravedad en molde met\u00e1lico, vierte el metal en un molde met\u00e1lico reutilizable por acci\u00f3n de la gravedad. El molde y sus machos constituyen la herramienta, y el material del que est\u00e1n hechos se determina por cuatro factores y no por uno solo. Las recomendaciones publicadas a continuaci\u00f3n establecen la elecci\u00f3n seg\u00fan la aleaci\u00f3n de fundici\u00f3n y seg\u00fan el n\u00famero de coladas que el molde debe soportar.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Los cuatro factores que determinan el material del molde<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Cuatro factores principales afectan la selecci\u00f3n de un material para un molde permanente o un macho. Son la temperatura de colada del metal que se va a fundir, el tama\u00f1o de la pieza, el n\u00famero de piezas por molde y el costo del material del molde.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Esas cuatro variables son la base de las tres tablas de selecci\u00f3n que figuran a continuaci\u00f3n. Las dos primeras determinan la temperatura de trabajo del molde y la cantidad de calor que debe evacuar, la tercera determina si la vida \u00fatil adicional de un acero para herramientas justifica su costo, y la cuarta decide entre fundici\u00f3n gris, un acero fundido de baja aleaci\u00f3n y un acero para herramientas fundido.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Materiales de molde recomendados seg\u00fan la aleaci\u00f3n de fundici\u00f3n y el n\u00famero de coladas<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">La tabla abarca moldes para piezas peque\u00f1as de hasta 25 mm (1 in.) y para piezas medianas y grandes de hasta 915 mm (36 in.). Cada fila es una aleaci\u00f3n de fundici\u00f3n y cada columna es el n\u00famero de coladas que el molde debe realizar, de modo que la misma aleaci\u00f3n pasa a un material diferente a medida que se alarga la serie de producci\u00f3n.<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\" rowspan=\"2\">Aleaci\u00f3n de fundici\u00f3n<\/th><th class=\"has-text-align-left\" data-align=\"left\" colspan=\"3\">N\u00famero de coladas<\/th><\/tr><tr><th class=\"has-text-align-left\" data-align=\"left\">1,000<\/th><th class=\"has-text-align-left\" data-align=\"left\">10,000<\/th><th class=\"has-text-align-left\" data-align=\"left\">100,000<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-left\" data-align=\"left\" colspan=\"4\"><strong>Para piezas peque\u00f1as (25 mm, o 1 in., de dimensi\u00f3n m\u00e1xima)<\/strong><\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Zinc<\/td><td class=\"has-text-align-left\" data-align=\"left\">Fundici\u00f3n gris; acero 1020<\/td><td class=\"has-text-align-left\" data-align=\"left\">Fundici\u00f3n gris; acero 1020<\/td><td class=\"has-text-align-left\" data-align=\"left\">Fundici\u00f3n gris; acero 1020<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Aluminio, magnesio<\/td><td class=\"has-text-align-left\" data-align=\"left\">Fundici\u00f3n gris; acero 1020<\/td><td class=\"has-text-align-left\" data-align=\"left\">Fundici\u00f3n gris; acero 1020<\/td><td class=\"has-text-align-left\" data-align=\"left\">Fundici\u00f3n gris con insertos de AISI H14; acero 1020<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Cobre<\/td><td class=\"has-text-align-left\" data-align=\"left\">Hierro gris<\/td><td class=\"has-text-align-left\" data-align=\"left\">Hierro gris<\/td><td class=\"has-text-align-left\" data-align=\"left\">Fundici\u00f3n de aleaci\u00f3n<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Hierro gris<\/td><td class=\"has-text-align-left\" data-align=\"left\">Hierro gris<sup>(a)<\/sup><\/td><td class=\"has-text-align-left\" data-align=\"left\">Hierro gris<sup>(a)<\/sup><\/td><td class=\"has-text-align-left\" data-align=\"left\">Cantidad no colada<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\" colspan=\"4\"><strong>Para piezas medianas y grandes (hasta 915 mm, o 36 in., de dimensi\u00f3n m\u00e1xima)<\/strong><\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Zinc<\/td><td class=\"has-text-align-left\" data-align=\"left\">Fundici\u00f3n gris; AISI H11<sup>(b)<\/sup><\/td><td class=\"has-text-align-left\" data-align=\"left\">Fundici\u00f3n gris; AISI H11<sup>(b)<\/sup><\/td><td class=\"has-text-align-left\" data-align=\"left\">Fundici\u00f3n gris; AISI H11<sup>(b)<\/sup><\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Aluminio, magnesio<\/td><td class=\"has-text-align-left\" data-align=\"left\">Hierro gris<\/td><td class=\"has-text-align-left\" data-align=\"left\">Hierro gris<\/td><td class=\"has-text-align-left\" data-align=\"left\">Fundici\u00f3n gris; AISI H11 o H14<sup>(c)<\/sup><\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Cobre<\/td><td class=\"has-text-align-left\" data-align=\"left\">Fundici\u00f3n de aleaci\u00f3n<\/td><td class=\"has-text-align-left\" data-align=\"left\">Fundici\u00f3n de aleaci\u00f3n<\/td><td class=\"has-text-align-left\" data-align=\"left\">Fundici\u00f3n de aleaci\u00f3n<sup>(d)<\/sup><\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Hierro gris<\/td><td class=\"has-text-align-left\" data-align=\"left\">Hierro gris<sup>(a)<\/sup><\/td><td class=\"has-text-align-left\" data-align=\"left\">Hierro gris<sup>(a)<\/sup><\/td><td class=\"has-text-align-left\" data-align=\"left\">Cantidad no colada<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><em>Materiales recomendados para moldes permanentes, reproducidos de la Tabla 1 de Permanent Mold Casting, en ASM Handbook, Volumen 15, Casting. Cuando en una celda se indican dos materiales, la fuente los enumera sin orden de preferencia. (a) Misma composici\u00f3n que la del metal colado. (b) Se usa AISI H11 cuando se requiere pulido en piezas medianas. (c) Para piezas medianas; los materiales recomendados para piezas grandes son fundici\u00f3n gris con insertos de H11 o acero para matrices H11 macizo. (d) Para piezas medianas; las piezas grandes no se cuelan en esta cantidad.<\/em><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Lo que indica la tabla de moldes<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">La fundici\u00f3n gris es el material para moldes permanentes m\u00e1s utilizado y, en el bloque de piezas peque\u00f1as, cubre todas las aleaciones hasta 100.000 coladas. El acero para herramientas aparece en la tabla en dos lugares. Para piezas peque\u00f1as de aluminio y magnesio, la columna de 100.000 coladas a\u00f1ade insertos de AISI H14 dentro de la fundici\u00f3n gris, y para piezas peque\u00f1as de zinc se nombra el AISI H11 cuando se debe mantener un pulido en piezas medianas.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">En el bloque de piezas medianas y grandes el patr\u00f3n se repite con mayor intensidad. Las piezas grandes de aluminio y magnesio requieren fundici\u00f3n gris con insertos de H11 o un acero para matrices H11 macizo a las 100.000 coladas, y las piezas de zinc emplean fundici\u00f3n gris con AISI H11 desde 1.000 coladas en adelante. El cobre es la excepci\u00f3n, porque su mayor temperatura de colada lleva la selecci\u00f3n hacia la fundici\u00f3n de aleaci\u00f3n y no se nombra ning\u00fan acero para herramientas. Las piezas de fundici\u00f3n gris est\u00e1n marcadas como no coladas en la columna superior.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Un acero al carbono simple como el 1020 aparece en las columnas de recuentos bajos. Es econ\u00f3mico y adecuado cuando el molde no trabaja a alta temperatura, y el paso al H11 o H14 es un aumento de la dureza en caliente y de la resistencia al agrietamiento t\u00e9rmico. Ese paso solo se justifica cuando el n\u00famero de coladas o el acabado superficial de la pieza lo exigen.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Materiales para machos recomendados<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Los machos se recomiendan por separado, y la divisi\u00f3n es por tama\u00f1o del macho y no por tama\u00f1o de la pieza. Los materiales de estas dos tablas se enumeran en orden descendente de preferencia, por lo que el primer nombre de una celda es la primera opci\u00f3n.<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">Aleaci\u00f3n de fundici\u00f3n<\/th><th class=\"has-text-align-left\" data-align=\"left\">Materiales para machos recomendados<sup>(a)<\/sup><\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-left\" data-align=\"left\">Zinc<\/td><td class=\"has-text-align-left\" data-align=\"left\">Arena, yeso, fundici\u00f3n gris, acero 1020<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Aluminio, magnesio<\/td><td class=\"has-text-align-left\" data-align=\"left\">Acero 1010 o 1020, arena, yeso, acero para matrices H11 o equivalente<sup>(b)<\/sup>, carbono<sup>(c)<\/sup><\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Cobre<\/td><td class=\"has-text-align-left\" data-align=\"left\">Arena, acero 1020, fundici\u00f3n gris, yeso<sup>(d)<\/sup>, grafito<sup>(c)<\/sup><\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Hierro gris<\/td><td class=\"has-text-align-left\" data-align=\"left\">Arena, grafito, carbono, fundici\u00f3n gris<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><em>Materiales recomendados para machos peque\u00f1os, de menos de 76 mm (3 in.) de di\u00e1metro y 255 mm (10 in.) de longitud, reproducidos de la Tabla 2 de Permanent Mold Casting, en ASM Handbook, Volumen 15, Casting. (a) Los materiales se enumeran en orden descendente de preferencia. (b) Templado a 42 a 45 HRC. (c) Para uso con relativamente pocas coladas. (d) Para la fundici\u00f3n de bronces de aluminio.<\/em><\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\" rowspan=\"2\">Aleaci\u00f3n de fundici\u00f3n<\/th><th class=\"has-text-align-left\" data-align=\"left\" colspan=\"3\">Material para el n\u00famero de coladas indicado<sup>(a)<\/sup><\/th><\/tr><tr><th class=\"has-text-align-left\" data-align=\"left\">1,000<\/th><th class=\"has-text-align-left\" data-align=\"left\">10,000<\/th><th class=\"has-text-align-left\" data-align=\"left\">100,000<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-left\" data-align=\"left\">Zinc<\/td><td class=\"has-text-align-left\" data-align=\"left\">Fundici\u00f3n gris, acero 1020<\/td><td class=\"has-text-align-left\" data-align=\"left\">Fundici\u00f3n gris, acero 1020<\/td><td class=\"has-text-align-left\" data-align=\"left\">Fundici\u00f3n gris, acero 1020<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Aluminio, magnesio<\/td><td class=\"has-text-align-left\" data-align=\"left\">Fundici\u00f3n gris, fundici\u00f3n gris con insertos de acero 1020<sup>(b)<\/sup>, arena, yeso<sup>(b)<\/sup><\/td><td class=\"has-text-align-left\" data-align=\"left\">Hierro gris<sup>(b)<\/sup>, fundici\u00f3n gris con insertos de 1020 o H11<sup>(b)<\/sup>, arena, yeso<sup>(b)<\/sup><\/td><td class=\"has-text-align-left\" data-align=\"left\">Hierro gris<sup>(b)<\/sup>, fundici\u00f3n gris con insertos de H11<sup>(b)<\/sup>, acero para matrices H11<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Cobre<\/td><td class=\"has-text-align-left\" data-align=\"left\">Arena<\/td><td class=\"has-text-align-left\" data-align=\"left\">Arena<\/td><td class=\"has-text-align-left\" data-align=\"left\">Cantidad no colada<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><em>Materiales recomendados para machos grandes, de m\u00e1s de 76 mm (3 in.) de di\u00e1metro y 255 mm (10 in.) de longitud, reproducidos de la Tabla 3 de Permanent Mold Casting, en ASM Handbook, Volumen 15, Casting. (a) Los materiales se enumeran en orden descendente de preferencia. (b) Excepto para aberturas con formas complejas, que requieren machos de arena perdidos.<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">El acero para matrices H11 designado para machos peque\u00f1os de aluminio y magnesio se templa a 42 a 45 HRC, y el carbono y el grafito se ofrecen solo para relativamente pocas coladas. Para machos grandes, el paso al H11 se produce a las 10.000 coladas como insertos y a las 100.000 coladas como insertos o como matriz de acero H11 maciza. La segunda nota al pie de esa tabla mantiene disponibles los machos de arena perdidos para aberturas con formas complejas.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Moldes e insertos colados a forma<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Las piezas de molde se pueden colar a forma cuando las piezas a fabricar no son complicadas, y los moldes colados sirven para cualquier aplicaci\u00f3n para la que se recomiende fundici\u00f3n gris o acero para matrices AISI H11 en la tabla de machos. Se usan con mayor frecuencia cuando los requisitos de producci\u00f3n son grandes y cuando los programas de reemplazo o env\u00edo de moldes requieren varios moldes iguales.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Los insertos de cavidad total o parcial se usan para obtener una mayor vida \u00fatil del molde o para simplificar el mecanizado, la manipulaci\u00f3n y el reemplazo, y tambi\u00e9n pueden incorporar ventilaci\u00f3n, enfriar paredes delgadas o calentar parte de la cavidad. Los insertos de fundici\u00f3n gris colados a forma para piezas complejas de aluminio y magnesio duran de 5.000 a 20.000 coladas, seg\u00fan la complejidad de la pieza.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Costo de mecanizado frente a costo de material<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">El mecanizado de la cavidad suele ser un factor m\u00e1s significativo en el costo de un molde que el costo del material del que se corta. Tomando un molde de fundici\u00f3n gris como 1,0, y con el tratamiento t\u00e9rmico incluido donde se requiere, las relaciones publicadas del costo de mecanizado para moldes id\u00e9nticos son las siguientes.<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">Material del molde<\/th><th class=\"has-text-align-left\" data-align=\"left\">Costo de mecanizado relativo<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-left\" data-align=\"left\">Hierro gris<\/td><td class=\"has-text-align-left\" data-align=\"left\">1.0<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Acero de baja aleaci\u00f3n colado<\/td><td class=\"has-text-align-left\" data-align=\"left\">1.44<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Fundici\u00f3n gris con insertos de acero para herramientas<\/td><td class=\"has-text-align-left\" data-align=\"left\">1.73<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Acero para herramientas colado<\/td><td class=\"has-text-align-left\" data-align=\"left\">2.16<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><em>Costo de mecanizado relativo de moldes id\u00e9nticos, reproducido de la secci\u00f3n de mecanizado de Permanent Mold Casting, en ASM Handbook, Volumen 15, Casting. El tratamiento t\u00e9rmico se incluye donde se requiere.<\/em><\/p>\n\n\n\n<div class=\"wp-block-group has-background is-layout-constrained wp-container-core-group-is-layout-3e4fb3d2 wp-block-group-is-layout-constrained\" style=\"border-radius:8px;background-color:#f4f8ff;margin-bottom:24px;padding-top:20px;padding-right:24px;padding-bottom:20px;padding-left:24px\">\n<p class=\"wp-block-paragraph\"><strong>Materiales de moldes permanentes y machos, PDF imprimible<\/strong><\/p>\n\n<p class=\"wp-block-paragraph\">Las tres tablas de selecci\u00f3n publicadas para moldes permanentes y machos, con el costo de mecanizado relativo de cada material de molde, en un solo PDF con nuestros datos de contacto.<\/p>\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/10\/Aobo-Steel-Permanent-Mold-Core-Materials.pdf\">Descargar PDF<\/a><\/div>\n\n<\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Grados y existencias<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Los aceros para herramientas nombrados en estas tablas son grados de trabajo en caliente. El grado de cromo para trabajo en caliente de uso general que respalda los moldes de zinc y los machos de aluminio y magnesio se trata en <a href=\"https:\/\/aobosteel.com\/es\/h11-tool-steel\/\">la p\u00e1gina del acero para herramientas H11<\/a>. Donde el molde trabaja a mayor temperatura o la serie es m\u00e1s larga, el grado de mayor aleaci\u00f3n se expone en <a href=\"https:\/\/aobosteel.com\/es\/h13-tool-steel\/\">la p\u00e1gina del acero para herramientas H13<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Los machos y las correderas con frecuencia se nitruran para resistencia al desgaste, y <a href=\"https:\/\/aobosteel.com\/es\/tool-steel-nitriding-guide\/\">la gu\u00eda de nitruraci\u00f3n de acero para herramientas<\/a> expone el proceso y la profundidad de capa que lo acompa\u00f1a.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">La misma selecci\u00f3n para la fundici\u00f3n a presi\u00f3n en c\u00e1mara se enumera en <a href=\"https:\/\/aobosteel.com\/es\/die-casting-die-component-materials\/\">la p\u00e1gina de materiales de componentes de matrices de fundici\u00f3n a presi\u00f3n<\/a>, que indica los materiales de los componentes y su dureza. La lista m\u00e1s amplia de tipos de herramientas y los materiales que normalmente se usan para ellas est\u00e1 en <a href=\"https:\/\/aobosteel.com\/es\/tool-and-die-materials-by-tool-type\/\">la p\u00e1gina de materiales para herramientas y matrices por tipo de herramienta<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Donde un molde permanente se reemplaza por una matriz de fundici\u00f3n a presi\u00f3n, la selecci\u00f3n pasa a <a href=\"https:\/\/aobosteel.com\/es\/selection-of-tool-steel-for-high-pressure-die-casting-dies\/\">la p\u00e1gina de matrices de fundici\u00f3n a presi\u00f3n en c\u00e1mara caliente<\/a>. Los machos e insertos para ese proceso se tratan en <a href=\"https:\/\/aobosteel.com\/es\/selection-of-tool-steel-for-die-casting-cores-and-inserts\/\">la p\u00e1gina de machos e insertos para fundici\u00f3n a presi\u00f3n<\/a>.<\/p>\n\n\n\n<div class=\"wp-block-group has-background is-layout-constrained wp-container-core-group-is-layout-3e4fb3d2 wp-block-group-is-layout-constrained\" style=\"border-radius:8px;background-color:#f4f8ff;margin-bottom:24px;padding-top:20px;padding-right:24px;padding-bottom:20px;padding-left:24px\">\n<p class=\"wp-block-paragraph\"><strong>Materiales de moldes permanentes y machos, PDF imprimible<\/strong><\/p>\n\n<p class=\"wp-block-paragraph\">Las tres tablas de selecci\u00f3n publicadas para moldes permanentes y machos, con el costo de mecanizado relativo de cada material de molde, en un solo PDF con nuestros datos de contacto.<\/p>\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/aobosteel.com\/wp-content\/uploads\/2026\/10\/Aobo-Steel-Permanent-Mold-Core-Materials.pdf\">Descargar PDF<\/a><\/div>\n\n<\/div>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Antes de usar estos valores<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Esta p\u00e1gina es un resumen de referencia de la pr\u00e1ctica publicada y no es una especificaci\u00f3n de Aobo Steel. Los materiales se reproducen de las tablas de origen, y una aleaci\u00f3n de fundici\u00f3n diferente, un n\u00famero de coladas diferente o un dise\u00f1o de molde diferente cambiar\u00e1n la elecci\u00f3n. La selecci\u00f3n final se realiza seg\u00fan el plano de la pieza y la m\u00e1quina en la que funciona el molde.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Fuente: ASM Handbook, Volumen 15, Casting (9th Edition Metals Handbook), ASM International, 1988.<\/p>","protected":false},"excerpt":{"rendered":"<p>Permanent Mold and Core Materials for Gravity Die Casting Permanent mold casting, also called gravity die casting, pours metal into a reusable metal mold under gravity. The mold and its cores are the tooling, and what they are made from is settled by four things rather than by one. The published recommendations below set out 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