{"id":15604,"date":"2026-02-13T14:13:36","date_gmt":"2026-02-13T06:13:36","guid":{"rendered":"https:\/\/moldiecasting.com\/?p=15604"},"modified":"2026-10-08T20:19:11","modified_gmt":"2026-10-08T12:19:11","slug":"tool-steel-for-die-casting-mold-die-steel-properties-and-selection","status":"publish","type":"post","link":"https:\/\/moldiecasting.com\/ro\/blog\/tool-steel-for-die-casting-mold-die-steel-properties-and-selection\/","title":{"rendered":"O\u021beluri pentru matri\u021be de turnare sub presiune: propriet\u0103\u021bi \u0219i selec\u021bie"},"content":{"rendered":"<p>O\u021belurile pentru sculele de matri\u021b\u0103 sunt esen\u021biale \u00een produc\u021bia modern\u0103 de <span style=\"color: #3366ff;\"><a style=\"color: #3366ff;\" href=\"https:\/\/moldiecasting.com\/ro\/die-casting-dies\/\">matri\u021be pentru turnarea sub presiune<\/a><\/span>. Aceste materiale se deosebesc de o\u021belurile standard pentru scule deoarece echilibreaz\u0103 duritatea, tenacitatea \u0219i rezisten\u021ba la c\u0103ldur\u0103.<\/p>\n<p>Acest articol este un ghid despre propriet\u0103\u021bile \u0219i selec\u021bia o\u021belurilor pentru matri\u021be, pentru a v\u0103 ajuta s\u0103 \u00een\u021belege\u021bi mai bine procesul de fabrica\u021bie al furnizorului \u0219i s\u0103 comunica\u021bi eficient \u00een etapele de proiectare \u0219i produc\u021bie.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1732\" src=\"https:\/\/moldiecasting.com\/wp-content\/uploads\/2026\/02\/steel-cube-used-for-die-making.jpg\" alt=\"Blocuri de o\u021bel pentru scule, de \u00eenalt\u0103 calitate, utilizate la fabricarea matri\u021belor pentru turnare sub presiune, eviden\u021biind durabilitatea \u0219i precizia necesare propriet\u0103\u021bilor optime ale o\u021belului pentru matri\u021be.\" width=\"800\" height=\"450\" srcset=\"https:\/\/moldiecasting.com\/wp-content\/uploads\/2026\/02\/steel-cube-used-for-die-making.jpg 800w, https:\/\/moldiecasting.com\/wp-content\/uploads\/2026\/02\/steel-cube-used-for-die-making-300x169.jpg 300w, https:\/\/moldiecasting.com\/wp-content\/uploads\/2026\/02\/steel-cube-used-for-die-making-768x432.jpg 768w, https:\/\/moldiecasting.com\/wp-content\/uploads\/2026\/02\/steel-cube-used-for-die-making-600x338.jpg 600w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/p>\n<h2>O\u021beluri pentru lucru la cald destinate turn\u0103rii sub presiune<\/h2>\n<p>Pe scurt, o\u021belul pentru scule de matri\u021b\u0103 este un tip de o\u021bel destinat matri\u021belor \u0219i formelor, care trebuie s\u0103-\u0219i p\u0103streze forma \u00een condi\u021bii de for\u021be, frecare \u0219i temperaturi ridicate. O\u021belurile pentru scule se \u00eempart \u00een clase pentru lucru la rece, lucru la cald \u0219i matri\u021be pentru mase plastice. Dintre acestea, <strong>o\u021belurile pentru lucru la cald<\/strong> sunt cele mai relevante pentru matri\u021bele de turnare sub presiune.<\/p>\n<p>O\u021belurile pentru lucru la cald rezist\u0103 la expunerea repetat\u0103 la temperaturi ridicate \u0219i la solicit\u0103ri mecanice. Sunt utilizate pentru matri\u021be de forjare, matri\u021be de turnare sub presiune \u0219i scule de extrudare la cald.<\/p>\n<h3>O\u021beluri uzuale pentru lucru la cald folosite la turnarea sub presiune<\/h3>\n<p>La turnarea sub presiune a aluminiului \u0219i zincului, H13 este cel mai utilizat o\u021bel pentru lucru la cald deoarece ofer\u0103 o combina\u021bie stabil\u0103 de rezisten\u021b\u0103 la cald, tenacitate \u0219i prelucrabilitate pentru matri\u021be \u0219i inser\u021bii complexe.<\/p>\n<p>Variantele \u0219i clasele echivalente (precum 1.2344 sau SKD61) ofer\u0103 performan\u021be similare \u00een func\u021bie de standardele locale \u0219i disponibilitate. Pentru condi\u021bii foarte solicitante sau scule cu durat\u0103 lung\u0103 de via\u021b\u0103, se aleg adesea clase premium sau modificate de H13, cu puritate \u0219i tenacitate \u00eembun\u0103t\u0103\u021bite.<\/p>\n<h2>Propriet\u0103\u021bile o\u021belurilor pentru matri\u021be \u0219i beneficiile lor \u00een fabricarea matri\u021belor<\/h2>\n<p>O\u021belurile pentru matri\u021be utilizate la turnarea sub presiune trebuie s\u0103 func\u021bioneze \u00een condi\u021bii extreme. Valoarea lor provine dintr-o gam\u0103 larg\u0103 de propriet\u0103\u021bi utile \u00een produc\u021bia real\u0103.<\/p>\n<h3>Duritatea \u0219i rezisten\u021ba la uzur\u0103 \u00een turnarea sub presiune<\/h3>\n<p>Pentru <span style=\"color: #3366ff;\"><a style=\"color: #3366ff;\" href=\"https:\/\/moldiecasting.com\/ro\/product-category\/die-casting-mold\/\">matri\u021bele de turnare sub presiune<\/a><\/span>,\u00a0<strong>duritatea<\/strong> este esen\u021bial\u0103 pentru controlul uzurii componentelor \u0219i al diferitelor zone ale matri\u021bei. O\u021belurile pentru lucru la cald, tratate termic corespunz\u0103tor, precum H13, ating de regul\u0103 aproximativ 46\u201352 HRC la turnarea sub presiune a aluminiului; 48\u201350 HRC este intervalul cel mai frecvent pentru sculele de produc\u021bie. Aceast\u0103 duritate este suficient\u0103 pentru a limita eroziunea provocat\u0103 de metalul topit care curge rapid \u00een timpul produc\u021biei.<\/p>\n<p>O <strong>rezisten\u021b\u0103 bun\u0103 la uzur\u0103<\/strong> ajut\u0103 matri\u021ba s\u0103 reziste la:<\/p>\n<ul>\n<li>Eroziunea \u00een zonele cu flux metalic de mare vitez\u0103 (por\u021bi, canale de alimentare \u0219i zone de preaplin)<\/li>\n<li>Aluminiul sau zincul topit care tind s\u0103 adere la suprafa\u021ba matri\u021bei<\/li>\n<li>\u00cenchiderea \u0219i str\u00e2ngerea repetat\u0103 a matri\u021bei la ejectarea pieselor finite<\/li>\n<\/ul>\n<p>Acoperirile cu carburi formate din carbon, crom \u0219i vanadiu \u00eencetinesc pierderea de material de pe suprafa\u021ba fierbinte a matri\u021bei. O suprafa\u021b\u0103 neted\u0103, bine lustruit\u0103, \u0219i o acoperire adecvat\u0103 reduc suplimentar frecarea \u0219i lipirea aliajului de matri\u021b\u0103, prelungind durata de via\u021b\u0103 a sculei \u0219i men\u021bin\u00e2nd consecven\u021ba dimensiunilor pieselor turnate.<\/p>\n<h3>Tenacitatea \u0219i rezisten\u021ba la impact sub sarcinile de injec\u021bie<\/h3>\n<p><strong>Tenacitatea<\/strong> este la fel de important\u0103 ca duritatea \u00een aplica\u021biile de turnare sub presiune. Diferen\u021ba principal\u0103 este c\u0103 duritatea reprezint\u0103 rezisten\u021ba la uzura \u0219i indentarea suprafe\u021bei, \u00een timp ce tenacitatea \u00eenseamn\u0103 rezisten\u021ba la fisurare \u0219i rupere \u00een urma impactului. Aceast\u0103 proprietate este deosebit de important\u0103 pentru:<\/p>\n<ul>\n<li>Componente sub\u021biri ale matri\u021bei \u0219i zone expuse la presiuni ridicate de injec\u021bie<\/li>\n<li>Zone supuse \u00eenc\u0103rc\u0103rii mecanice \u0219i impactului repetat (\u00een apropierea pinilor de ejectare \u0219i a liniilor de separa\u021bie)<\/li>\n<\/ul>\n<p>O <strong>rezisten\u021b\u0103 ridicat\u0103 la impact<\/strong> reduce riscul ruperii bru\u0219te atunci c\u00e2nd matri\u021ba este supus\u0103 alinierii incorecte, v\u00e2rfurilor de presiune a metalului sau \u0219ocului termic cauzat de \u00eenc\u0103lzirea \u0219i r\u0103cirea neuniform\u0103.<\/p>\n<h3>Rezisten\u021ba la coroziune<\/h3>\n<p>De\u0219i matri\u021bele pentru turnarea sub presiune nu necesit\u0103 rezisten\u021ba complet\u0103 la coroziune a o\u021belului inoxidabil, o <strong>rezisten\u021b\u0103 moderat\u0103 la coroziune<\/strong> este totu\u0219i util\u0103 \u00een operarea \u0219i \u00eentre\u021binerea zilnic\u0103. Cromul din o\u021belurile pentru lucru la cald \u00eencetine\u0219te ruginirea \u00eentre seriile de produc\u021bie, \u00een timpul depozit\u0103rii sau \u00een prezen\u021ba apei de r\u0103cire \u0219i a umidit\u0103\u021bii.<\/p>\n<p>Coroziunea apare mai \u00eent\u00e2i sub form\u0103 de puncte de coroziune sau pete pe suprafe\u021bele cavit\u0103\u021bilor, glisiere \u0219i miezuri. Aceste defecte se pot transfera pe piesele turnate, afect\u00e2nd demularea \u0219i prelungind cur\u0103\u021barea. Prin urmare, pe l\u00e2ng\u0103 alegerea o\u021belului potrivit pentru scule, sunt necesare cur\u0103\u021barea corespunz\u0103toare, uleiuri anticorozive \u0219i depozitarea controlat\u0103 pentru men\u021binerea calit\u0103\u021bii suprafe\u021belor \u0219i reducerea opririlor neplanificate pentru \u00eentre\u021binere.<\/p>\n<h3>Stabilitate dimensional\u0103 \u0219i termic\u0103<\/h3>\n<p><strong>Stabilitatea dimensional\u0103<\/strong> este esen\u021bial\u0103 pentru men\u021binerea toleran\u021belor str\u00e2nse ale matri\u021belor de turnare sub presiune. O\u021belurile utilizate la matri\u021be trebuie s\u0103-\u0219i p\u0103streze forma dup\u0103 tratamentul termic \u0219i pe toat\u0103 durata de func\u021bionare.<\/p>\n<p>Aspectele esen\u021biale ale stabilit\u0103\u021bii \u00een turnarea sub presiune includ:<\/p>\n<ul>\n<li><strong>Deformare redus\u0103 \u00een timpul tratamentului termic<\/strong>, astfel \u00eenc\u00e2t dimensiunile cavit\u0103\u021bii s\u0103 r\u0103m\u00e2n\u0103 \u00een limitele adaosurilor de prelucrare<\/li>\n<li><strong>Rezisten\u021b\u0103 bun\u0103 la revenire<\/strong>, pentru ca duritatea \u0219i rezisten\u021ba s\u0103 r\u0103m\u00e2n\u0103 stabile la temperaturile de func\u021bionare ale matri\u021bei<\/li>\n<li><strong>Rezisten\u021b\u0103 la oboseal\u0103 termic\u0103<\/strong>, limit\u00e2nd fisurarea termic\u0103 superficial\u0103 \u0219i cr\u0103parea suprafe\u021bei dup\u0103 multe cicluri de turnare<\/li>\n<\/ul>\n<p>O\u021belurile pentru lucru la cald cu stabilitate termic\u0103 bun\u0103 previn \u00eenmuierea, deformarea \u0219i cre\u0219terea excesiv\u0103 a matri\u021bei \u00een urma \u00eenc\u0103lzirii \u0219i r\u0103cirii repetate. Stabilitatea ajut\u0103 la men\u021binerea liniilor de separa\u021bie str\u00e2nse, p\u0103streaz\u0103 suprafe\u021bele de \u00eenchidere \u0219i alinierea miezurilor \u0219i inser\u021biilor, sus\u021bin\u00e2nd direct precizia consecvent\u0103 a pieselor turnate \u0219i o durat\u0103 de via\u021b\u0103 mai lung\u0103 a matri\u021bei.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1731\" src=\"https:\/\/moldiecasting.com\/wp-content\/uploads\/2026\/02\/a-steel-die-mounted-on-a-die-casting-machine.jpg\" alt=\"Matri\u021b\u0103 din o\u021bel pentru scule, montat\u0103 pe o ma\u0219in\u0103 de turnare sub presiune\" width=\"800\" height=\"450\" srcset=\"https:\/\/moldiecasting.com\/wp-content\/uploads\/2026\/02\/a-steel-die-mounted-on-a-die-casting-machine.jpg 800w, https:\/\/moldiecasting.com\/wp-content\/uploads\/2026\/02\/a-steel-die-mounted-on-a-die-casting-machine-300x169.jpg 300w, https:\/\/moldiecasting.com\/wp-content\/uploads\/2026\/02\/a-steel-die-mounted-on-a-die-casting-machine-768x432.jpg 768w, https:\/\/moldiecasting.com\/wp-content\/uploads\/2026\/02\/a-steel-die-mounted-on-a-die-casting-machine-600x338.jpg 600w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/p>\n<h3>Cum influen\u021beaz\u0103 performan\u021ba o\u021belului pentru scule matri\u021ba de turnare sub presiune &amp; \u00een produc\u021bie<\/h3>\n<p>Dac\u0103 detaliile tehnice de mai sus par prea complexe, tabelul urm\u0103tor explic\u0103 modul \u00een care aceste propriet\u0103\u021bi \u00eembun\u0103t\u0103\u021besc calitatea produsului \u0219i eficien\u021ba:<\/p>\n<table class=\"caption-bottom text-sm my-0 w-full table-auto\">\n<thead class=\"border-0 border-b [&amp;_tr]:border-0\" data-table-header-wrapper=\"true\">\n<tr class=\"data-[state=selected]:bg-muted hover:bg-muted\/50 border-b border-border transition-colors duration-200\" data-table-row=\"true\">\n<th class=\"h-10 text-left text-muted-foreground [&amp;:has([role=checkbox])]:pr-0 [&amp;&gt;[role=checkbox]]:translate-y-[2px] px-4 py-3 align-top font-semibold tracking-wide\" data-table-header=\"true\">\n<div class=\"hyphens-auto break-words\">Proprietate<\/div>\n<\/th>\n<th class=\"h-10 text-left text-muted-foreground [&amp;:has([role=checkbox])]:pr-0 [&amp;&gt;[role=checkbox]]:translate-y-[2px] px-4 py-3 align-top font-semibold tracking-wide\" data-table-header=\"true\">\n<div class=\"hyphens-auto break-words\">Ce se observ\u0103 \u00een produc\u021bie<\/div>\n<\/th>\n<\/tr>\n<\/thead>\n<tbody class=\"[&amp;_tr:last-child]:border-0 divide-y divide-border bg-background\" data-table-body=\"true\">\n<tr class=\"data-[state=selected]:bg-muted hover:bg-muted\/50 border-b border-border transition-colors duration-200\" data-table-row=\"true\">\n<td class=\"p-2 [&amp;:has([role=checkbox])]:pr-0 [&amp;&gt;[role=checkbox]]:translate-y-[2px] px-4 py-3 align-top\" data-table-cell=\"true\">\n<div class=\"hyphens-auto break-words\">Duritate\/rezisten\u021b\u0103 la uzur\u0103<\/div>\n<\/td>\n<td class=\"p-2 [&amp;:has([role=checkbox])]:pr-0 [&amp;&gt;[role=checkbox]]:translate-y-[2px] px-4 py-3 align-top\" data-table-cell=\"true\">\n<div class=\"hyphens-auto break-words\">Durat\u0103 mai lung\u0103 de via\u021b\u0103 a matri\u021bei, dimensiuni mai stabile, mai pu\u021bine modific\u0103ri ale zonelor critice<\/div>\n<\/td>\n<\/tr>\n<tr class=\"data-[state=selected]:bg-muted hover:bg-muted\/50 border-b border-border transition-colors duration-200\" data-table-row=\"true\">\n<td class=\"p-2 [&amp;:has([role=checkbox])]:pr-0 [&amp;&gt;[role=checkbox]]:translate-y-[2px] px-4 py-3 align-top\" data-table-cell=\"true\">\n<div class=\"hyphens-auto break-words\">Tenacitate<\/div>\n<\/td>\n<td class=\"p-2 [&amp;:has([role=checkbox])]:pr-0 [&amp;&gt;[role=checkbox]]:translate-y-[2px] px-4 py-3 align-top\" data-table-cell=\"true\">\n<div class=\"hyphens-auto break-words\">Risc mai mic de rupere a miezurilor, ciobire a muchiilor sau cedare brusc\u0103 a matri\u021bei<\/div>\n<\/td>\n<\/tr>\n<tr class=\"data-[state=selected]:bg-muted hover:bg-muted\/50 border-b border-border transition-colors duration-200\" data-table-row=\"true\">\n<td class=\"p-2 [&amp;:has([role=checkbox])]:pr-0 [&amp;&gt;[role=checkbox]]:translate-y-[2px] px-4 py-3 align-top\" data-table-cell=\"true\">\n<div class=\"hyphens-auto break-words\">Stabilitate termic\u0103<\/div>\n<\/td>\n<td class=\"p-2 [&amp;:has([role=checkbox])]:pr-0 [&amp;&gt;[role=checkbox]]:translate-y-[2px] px-4 py-3 align-top\" data-table-cell=\"true\">\n<div class=\"hyphens-auto break-words\">Dimensiuni consecvente ale pieselor, linii de separa\u021bie str\u00e2nse \u0219i suprafe\u021be de \u00eenchidere fiabile<\/div>\n<\/td>\n<\/tr>\n<tr class=\"data-[state=selected]:bg-muted hover:bg-muted\/50 border-b border-border transition-colors duration-200\" data-table-row=\"true\">\n<td class=\"p-2 [&amp;:has([role=checkbox])]:pr-0 [&amp;&gt;[role=checkbox]]:translate-y-[2px] px-4 py-3 align-top\" data-table-cell=\"true\">\n<div class=\"hyphens-auto break-words\">Rezisten\u021b\u0103 la coroziune<\/div>\n<\/td>\n<td class=\"p-2 [&amp;:has([role=checkbox])]:pr-0 [&amp;&gt;[role=checkbox]]:translate-y-[2px] px-4 py-3 align-top\" data-table-cell=\"true\">\n<div class=\"hyphens-auto break-words\">Cavit\u0103\u021bi mai curate, mai pu\u021bine defecte de suprafa\u021b\u0103, cur\u0103\u021bare \u0219i opriri reduse<\/div>\n<\/td>\n<\/tr>\n<tr class=\"data-[state=selected]:bg-muted hover:bg-muted\/50 border-b border-border transition-colors duration-200\" data-table-row=\"true\">\n<td class=\"p-2 [&amp;:has([role=checkbox])]:pr-0 [&amp;&gt;[role=checkbox]]:translate-y-[2px] px-4 py-3 align-top\" data-table-cell=\"true\">\n<div class=\"hyphens-auto break-words\">Oboseal\u0103 termic\u0103<\/div>\n<\/td>\n<td class=\"p-2 [&amp;:has([role=checkbox])]:pr-0 [&amp;&gt;[role=checkbox]]:translate-y-[2px] px-4 py-3 align-top\" data-table-cell=\"true\">\n<div class=\"hyphens-auto break-words\">Suprafe\u021be mai netede pentru mai mult timp, mai pu\u021bine repara\u021bii \u0219i suduri ale matri\u021bei<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div class=\"flex flex-col rounded-none bg-background\" data-table-wrapper=\"true\">\n<h2>Consulta\u021bi furnizorul dumneavoastr\u0103 de turnare sub presiune<\/h2>\n<p class=\"ds-markdown-paragraph\">Acest articol ofer\u0103 o scurt\u0103 introducere \u00een o\u021belurile pentru scule, \u00eens\u0103 trebuie lua\u021bi \u00een considerare mul\u021bi al\u021bi factori. Pentru detalii suplimentare, consulta\u021bi produc\u0103torul matri\u021belor de turnare sub presiune. Este recomandat s\u0103 include\u021bi \u00een cererea de ofert\u0103:<\/p>\n<ul>\n<li class=\"ds-markdown-paragraph\">O solicitare ini\u021bial\u0103 privind materialele specifice<\/li>\n<li class=\"ds-markdown-paragraph\">O descriere sau o schi\u021b\u0103 a produsului<\/li>\n<li class=\"ds-markdown-paragraph\">Alte informa\u021bii utile, at\u00e2t timp c\u00e2t oferi\u021bi produc\u0103torului matri\u021bei indica\u021bii clare<\/li>\n<\/ul>\n<p>Dac\u0103 nu \u0219ti\u021bi de unde s\u0103 \u00eencepe\u021bi, nu ezita\u021bi s\u0103 <span style=\"color: #3366ff;\"><a style=\"color: #3366ff;\" href=\"https:\/\/moldiecasting.com\/ro\/contact-us\/\">trimite\u021bi cererea de ofert\u0103<\/a><\/span>, iar exper\u021bii de la Moldie v\u0103 vor ajuta cu pl\u0103cere.<\/p>\n<\/div>\n<h2>\u00centreb\u0103ri frecvente<\/h2>\n<h3>Ce determin\u0103 cel mai bun tip de o\u021bel pentru scule de matri\u021b\u0103 \u00eentr-o anumit\u0103 aplica\u021bie?<\/h3>\n<p>Temperatura de func\u021bionare are un rol important. Procesele la cald, precum turnarea sub presiune, necesit\u0103 o\u021bel care \u00ee\u0219i p\u0103streaz\u0103 rezisten\u021ba la temperaturi ridicate, \u00een timp ce opera\u021biile la rece pun accent pe rezisten\u021ba la uzur\u0103.<\/p>\n<p>Conteaz\u0103 \u0219i tipul sarcinii. Procesele cu impact ridicat favorizeaz\u0103 o\u021belurile mai tenace, iar seriile lungi de produc\u021bie favorizeaz\u0103 clasele cu rezisten\u021b\u0103 bun\u0103 la uzur\u0103 \u0219i control dimensional stabil.<\/p>\n<h3>Cum influen\u021beaz\u0103 propriet\u0103\u021bile o\u021belului pentru scule performan\u021ba sa ca material pentru matri\u021b\u0103?<\/h3>\n<p>Rezisten\u021ba la uzur\u0103 determin\u0103 c\u00e2t timp \u00ee\u0219i p\u0103streaz\u0103 matri\u021ba forma. O rezisten\u021b\u0103 ridicat\u0103 la uzur\u0103 reduce rotunjirea muchiilor \u0219i deteriorarea suprafe\u021bei \u00een timpul ciclurilor repetate.<\/p>\n<p>Tenacitatea limiteaz\u0103 fisurarea \u0219i ciobirea. Rezisten\u021ba la c\u0103ldur\u0103 ajut\u0103 matri\u021ba s\u0103-\u0219i p\u0103streze duritatea c\u00e2nd este expus\u0103 la temperaturi ridicate ale procesului.<\/p>\n<h3>Cum influen\u021beaz\u0103 duritatea durata de via\u021b\u0103 a matri\u021bei de turnare sub presiune?<\/h3>\n<p>La turnarea sub presiune, duritatea mai ridicat\u0103 \u00eembun\u0103t\u0103\u021be\u0219te \u00een general rezisten\u021ba la eroziune \u0219i uzur\u0103 \u00een zonele matri\u021bei cu flux intens, prelungind durata de via\u021b\u0103 a sculei. Totu\u0219i, dac\u0103 duritatea este prea mare, tenacitatea scade, iar zonele sub\u021biri sau foarte solicitate devin mai predispuse la fisurare. Un interval echilibrat de duritate, ales \u00eempreun\u0103 cu furnizorul de turnare sub presiune, ajut\u0103 la ob\u021binerea unei durate lungi de via\u021b\u0103 f\u0103r\u0103 ced\u0103ri fragile.<\/p>\n<h3>Ce o\u021bel pentru scule este utilizat cel mai frecvent la matri\u021bele pentru turnarea sub presiune a aluminiului \u0219i zincului?<\/h3>\n<p>H13 \u0219i clasele sale echivalente (precum 1.2344 sau SKD61) sunt cele mai frecvente alegeri pentru matri\u021bele de turnare sub presiune a aluminiului \u0219i zincului, deoarece combin\u0103 rezisten\u021ba la cald, tenacitatea \u0219i prelucrabilitatea bun\u0103. Pentru aplica\u021bii deosebit de solicitante se pot utiliza variante premium de H13 sau alte o\u021beluri \u00eembun\u0103t\u0103\u021bite pentru lucru la cald, pentru o rezisten\u021b\u0103 mai bun\u0103 la fisurarea termic\u0103 superficial\u0103, eroziune \u0219i cr\u0103pare.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>O\u021belurile pentru sculele de matri\u021b\u0103 sunt esen\u021biale \u00een produc\u021bia modern\u0103 de matri\u021be pentru turnarea sub presiune. Aceste materiale se deosebesc de o\u021belurile standard pentru scule deoarece echilibreaz\u0103 duritatea, tenacitatea \u0219i rezisten\u021ba la c\u0103ldur\u0103. Acest articol este un ghid despre propriet\u0103\u021bile \u0219i selec\u021bia o\u021belurilor pentru matri\u021be, pentru a v\u0103 ajuta s\u0103 \u00een\u021belege\u021bi mai bine procesul de [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":16048,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_seopress_titles_title":"O\u021beluri pentru matri\u021be de turnare sub presiune: propriet\u0103\u021bi \u0219i selec\u021bie","_seopress_titles_desc":"Afla\u021bi despre o\u021belurile pentru matri\u021be de turnare sub presiune, propriet\u0103\u021bi precum duritatea \u0219i tenacitatea \u0219i alegerea lor \u00een func\u021bie de cerin\u021bele de lucru la cald.","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"none","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"both","_seopress_redirections_param":"","_seopress_redirections_type":301,"_seopress_analysis_target_kw":"","_seopress_news_disabled":"","_seopress_video_disabled":"","_seopress_video":[],"_seopress_pro_schemas_manual":[],"_seopress_pro_rich_snippets_disable_all":"","_seopress_pro_rich_snippets_disable":[],"_seopress_pro_schemas":[],"iawp_total_views":197,"footnotes":""},"categories":[174],"tags":[],"class_list":["post-15604","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"acf":[],"_links":{"self":[{"href":"https:\/\/moldiecasting.com\/ro\/wp-json\/wp\/v2\/posts\/15604","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/moldiecasting.com\/ro\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/moldiecasting.com\/ro\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/moldiecasting.com\/ro\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/moldiecasting.com\/ro\/wp-json\/wp\/v2\/comments?post=15604"}],"version-history":[{"count":3,"href":"https:\/\/moldiecasting.com\/ro\/wp-json\/wp\/v2\/posts\/15604\/revisions"}],"predecessor-version":[{"id":17763,"href":"https:\/\/moldiecasting.com\/ro\/wp-json\/wp\/v2\/posts\/15604\/revisions\/17763"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/moldiecasting.com\/ro\/wp-json\/wp\/v2\/media\/16048"}],"wp:attachment":[{"href":"https:\/\/moldiecasting.com\/ro\/wp-json\/wp\/v2\/media?parent=15604"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/moldiecasting.com\/ro\/wp-json\/wp\/v2\/categories?post=15604"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/moldiecasting.com\/ro\/wp-json\/wp\/v2\/tags?post=15604"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}