{"id":4706,"date":"2025-05-30T14:57:55","date_gmt":"2025-05-30T11:57:55","guid":{"rendered":"https:\/\/jnats.eu\/?p=4706"},"modified":"2025-06-05T17:41:03","modified_gmt":"2025-06-05T14:41:03","slug":"peiliu-plieno-karbidu-dydis-kodel-jis-svarbus-ir-kaip-pasirinkti-tinkama-pliena","status":"publish","type":"post","link":"https:\/\/jnats.eu\/ro\/peiliu-plieno-karbidu-dydis-kodel-jis-svarbus-ir-kaip-pasirinkti-tinkama-pliena\/","title":{"rendered":"Dimensiunea carburii o\u021belului pentru cu\u021bite: de ce conteaz\u0103 \u0219i cum s\u0103 alege\u021bi o\u021belul potrivit?"},"content":{"rendered":"<h2 class=\"wp-block-heading\">Ce sunt carburile \u00een o\u021belul pentru cu\u021bite?<\/h2>\n\n\n\n<p>Carburile sunt microparticule dure formate atunci c\u00e2nd carbonul este combinat cu alte elemente din aliaj, cum ar fi cromul, vanadiul, tungstenul sau molibdenul, \u00een timpul \u00eent\u0103ririi o\u021belului. Aceste particule sunt mult mai dure dec\u00e2t matricea o\u021belului \u00een sine \u0219i influen\u021beaz\u0103 puternic propriet\u0103\u021bile de t\u0103iere:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Rezisten\u021b\u0103 la abraziune<\/li>\n\n\n\n<li>Calitatea t\u0103ierii<\/li>\n\n\n\n<li>Complexitatea de ascu\u021bire<\/li>\n\n\n\n<li>P\u0103strarea avantajului<\/li>\n<\/ul>\n\n\n\n<p>Cu c\u00e2t sunt mai multe carburi \u0219i cu c\u00e2t acestea sunt mai dure \u0219i mai uniform distribuite, cu at\u00e2t lama r\u0103m\u00e2ne mai mult timp ascu\u021bit\u0103. Cu toate acestea, carburile grosiere pot compromite stabilitatea muchiei, \u00een special atunci c\u00e2nd ascu\u021bi\u021bi pe pietre mici sau la unghiuri extrem de ascu\u021bite.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"500\" src=\"https:\/\/jnats.eu\/wp-content\/uploads\/2025\/05\/ZWILLING-TWIN-CERMAX-peilis-Micarta-20-cm-3-1024x500.jpg\" alt=\"\" class=\"wp-image-4708\" srcset=\"https:\/\/jnats.eu\/wp-content\/uploads\/2025\/05\/ZWILLING-TWIN-CERMAX-peilis-Micarta-20-cm-3-1024x500.jpg 1024w, https:\/\/jnats.eu\/wp-content\/uploads\/2025\/05\/ZWILLING-TWIN-CERMAX-peilis-Micarta-20-cm-3-300x146.jpg 300w, https:\/\/jnats.eu\/wp-content\/uploads\/2025\/05\/ZWILLING-TWIN-CERMAX-peilis-Micarta-20-cm-3-768x375.jpg 768w, https:\/\/jnats.eu\/wp-content\/uploads\/2025\/05\/ZWILLING-TWIN-CERMAX-peilis-Micarta-20-cm-3-18x9.jpg 18w, https:\/\/jnats.eu\/wp-content\/uploads\/2025\/05\/ZWILLING-TWIN-CERMAX-peilis-Micarta-20-cm-3-990x483.jpg 990w, https:\/\/jnats.eu\/wp-content\/uploads\/2025\/05\/ZWILLING-TWIN-CERMAX-peilis-Micarta-20-cm-3-441x215.jpg 441w, https:\/\/jnats.eu\/wp-content\/uploads\/2025\/05\/ZWILLING-TWIN-CERMAX-peilis-Micarta-20-cm-3-600x293.jpg 600w, https:\/\/jnats.eu\/wp-content\/uploads\/2025\/05\/ZWILLING-TWIN-CERMAX-peilis-Micarta-20-cm-3-150x73.jpg 150w, https:\/\/jnats.eu\/wp-content\/uploads\/2025\/05\/ZWILLING-TWIN-CERMAX-peilis-Micarta-20-cm-3.jpg 1334w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Valoarea dimensiunii carburii<\/h2>\n\n\n\n<p>Dimensiunea carburilor este m\u0103surat\u0103 de obicei \u00een microni (\u03bcm). Acesta este un parametru foarte important deoarece:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Carburile fine (0,5-3 \u03bcm) permit o t\u0103iere mai lin\u0103 \u0219i mai ascu\u021bit\u0103, facilit\u00e2nd ascu\u021birea p\u00e2n\u0103 la o muchie foarte ascu\u021bit\u0103.<\/li>\n\n\n\n<li>Carburile mai grosiere (5-20 \u03bcm) ofer\u0103 o rezisten\u021b\u0103 mai bun\u0103 la uzur\u0103, dar pot face t\u0103ierea mai aspr\u0103 \u0219i pot face ascu\u021birea mai dificil\u0103.<\/li>\n<\/ul>\n\n\n\n<p>O\u021belurile moderne cu pulbere permit distribuirea uniform\u0103 \u0219i reducerea dimensiunii carburilor, men\u021bin\u00e2nd \u00een acela\u0219i timp un con\u021binut ridicat de particule \u0219i \u00eembun\u0103t\u0103\u021bind echilibrul propriet\u0103\u021bilor.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/jnats.eu\/wp-content\/uploads\/2025\/05\/k390_t-ark_03.jpg\" alt=\"\" class=\"wp-image-4736\" srcset=\"https:\/\/jnats.eu\/wp-content\/uploads\/2025\/05\/k390_t-ark_03.jpg 1024w, https:\/\/jnats.eu\/wp-content\/uploads\/2025\/05\/k390_t-ark_03-300x225.jpg 300w, https:\/\/jnats.eu\/wp-content\/uploads\/2025\/05\/k390_t-ark_03-768x576.jpg 768w, https:\/\/jnats.eu\/wp-content\/uploads\/2025\/05\/k390_t-ark_03-16x12.jpg 16w, https:\/\/jnats.eu\/wp-content\/uploads\/2025\/05\/k390_t-ark_03-990x743.jpg 990w, https:\/\/jnats.eu\/wp-content\/uploads\/2025\/05\/k390_t-ark_03-441x331.jpg 441w, https:\/\/jnats.eu\/wp-content\/uploads\/2025\/05\/k390_t-ark_03-600x450.jpg 600w, https:\/\/jnats.eu\/wp-content\/uploads\/2025\/05\/k390_t-ark_03-150x113.jpg 150w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Tabel cu dimensiunile \u0219i propriet\u0103\u021bile carburilor pentru o\u021belurile pentru cu\u021bite<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>O\u021bel<\/th><th>Dimensiunea carburii (\u03bcm)<\/th><th>Carbur\u0103 dominant\u0103<\/th><th>Rezisten\u021b\u0103 la abraziune<\/th><th>U\u0219urin\u021ba de ascu\u021bire<\/th><th>Calitatea t\u0103ierii<\/th><\/tr><\/thead><tbody><tr><td>Shirogami #1\/#2<\/td><td>0,5-2<\/td><td>Fe\u2083C<\/td><td>Mediu<\/td><td>Foarte bun<\/td><td>Excelent\u0103<\/td><\/tr><tr><td>Aogami #1\/#2<\/td><td>1-3<\/td><td>Fe\u2083C, Cr\u2087C\u2083<\/td><td>\u00cenalt\u0103<\/td><td>Bun<\/td><td>Excelent\u0103<\/td><\/tr><tr><td>VG-10<\/td><td>2-5<\/td><td>Cr\u2087C\u2083<\/td><td>\u00cenalt\u0103<\/td><td>Mediu<\/td><td>Bun<\/td><\/tr><tr><td>440C<\/td><td>5-15<\/td><td>Cr\u2087C\u2083<\/td><td>\u00cenalt\u0103<\/td><td>Mediu-Ordinar<\/td><td>Mediu<\/td><\/tr><tr><td>D2<\/td><td>5-20<\/td><td>Cr\u2087C\u2083<\/td><td>Foarte ridicat<\/td><td>Slab\u0103<\/td><td>Mediu<\/td><\/tr><tr><td>CPM S30V<\/td><td>1-4<\/td><td>V\u2084C\u2083<\/td><td>Foarte ridicat<\/td><td>Bun<\/td><td>Excelent\u0103<\/td><\/tr><tr><td>CPM S35VN<\/td><td>1-4<\/td><td>V\u2084C\u2083, NbC<\/td><td>Foarte ridicat<\/td><td>Bun<\/td><td>Excelent\u0103<\/td><\/tr><tr><td>CPM S90V<\/td><td>1-2<\/td><td>V\u2084C\u2083<\/td><td>Extrem de ridicat<\/td><td>Mediu<\/td><td>Excelent\u0103<\/td><\/tr><tr><td>CPM M4<\/td><td>1-3<\/td><td>Mo\u2082C, V\u2084C\u2083<\/td><td>Foarte ridicat<\/td><td>Mediu<\/td><td>Excelent\u0103<\/td><\/tr><tr><td>M390<\/td><td>1-3<\/td><td>V\u2084C\u2083, Cr\u2087C\u2083<\/td><td>Extrem de ridicat<\/td><td>Bun<\/td><td>Excelent\u0103<\/td><\/tr><tr><td>ZDP-189<\/td><td>2-4<\/td><td>Cr\u2087C\u2083<\/td><td>Foarte ridicat<\/td><td>Slab\u0103<\/td><td>Excelent\u0103<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Ce trebuie s\u0103 \u0219ti\u021bi atunci c\u00e2nd alege\u021bi o\u021belul?<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Dac\u0103 calitatea t\u0103ierii \u0219i u\u0219urin\u021ba de ascu\u021bire sunt o prioritate, o\u021belurile fine cu carbur\u0103 (Shirogami, Aogami, CPM S30V, S35VN) sunt o alegere bun\u0103.<\/li>\n\n\n\n<li>\u00cen cazul \u00een care p\u0103strarea ascu\u021bimii \u0219i rezisten\u021ba la uzur\u0103 sunt importante, ar trebui alese o\u021belurile cu pulbere cu un con\u021binut ridicat de vanadiu sau carbur\u0103 de carbon (CPM S90V, M390, ZDP-189).<\/li>\n\n\n\n<li>D2 \u0219i 440C sunt durabile \u0219i populare, dar carburile mai grosiere le fac mai dificil de ascu\u021bit, iar calitatea t\u0103ierii este medie.<\/li>\n\n\n\n<li>O\u021belurile din metalurgia pulberilor (seria CPM, M390) au un con\u021binut ridicat de carburi, dar dimensiuni mici \u0219i distribu\u021bie uniform\u0103 \u0219i sunt adesea considerate materiale de v\u00e2rf pentru cu\u021bite.<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">Concluzie<\/h2>\n\n\n\n<p>Dimensiunea carbidului este unul dintre cei mai importan\u021bi factori \u00een determinarea performan\u021bei unui cu\u021bit. Cu c\u00e2t carburile sunt mai mici \u0219i distribuite mai uniform, cu at\u00e2t cu\u021bitul va fi mai ascu\u021bit, va t\u0103ia mai bine materialele fine, va fi mai u\u0219or de ascu\u021bit \u0219i va fi mai pl\u0103cut de utilizat.<\/p>\n\n\n\n<p>Atunci c\u00e2nd alege\u021bi un cu\u021bit sau materialul s\u0103u de fabrica\u021bie, nu merit\u0103 s\u0103 v\u0103 uita\u021bi doar la duritatea (HRC) sau la rezisten\u021ba la rugin\u0103, ci \u0219i la carburile care predomin\u0103 \u00een o\u021bel, c\u00e2te sunt \u0219i ce dimensiune au.<\/p>","protected":false},"excerpt":{"rendered":"<p>Ce sunt carburile \u00een o\u021belul pentru cu\u021bite? Carburile sunt microparticule dure care se formeaz\u0103 atunci c\u00e2nd carbonul se leag\u0103 cu alte elemente din aliaj, cum ar fi cromul, vanadiul, tungstenul sau molibdenul, \u00een timpul procesului de \u00eent\u0103rire. Aceste particule sunt mult mai dure dec\u00e2t matricea o\u021belului \u00een sine \u0219i au o influen\u021b\u0103 puternic\u0103 asupra propriet\u0103\u021bilor de t\u0103iere: cu c\u00e2t exist\u0103 mai multe carburi \u0219i cu c\u00e2t acestea sunt mai dure \u0219i mai uniform distribuite, cu at\u00e2t lama [...]<\/p>","protected":false},"author":1,"featured_media":4735,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[35],"tags":[351,350],"class_list":["post-4706","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-peiliai","tag-karbidai","tag-plienas"],"_links":{"self":[{"href":"https:\/\/jnats.eu\/ro\/wp-json\/wp\/v2\/posts\/4706","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jnats.eu\/ro\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jnats.eu\/ro\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jnats.eu\/ro\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jnats.eu\/ro\/wp-json\/wp\/v2\/comments?post=4706"}],"version-history":[{"count":3,"href":"https:\/\/jnats.eu\/ro\/wp-json\/wp\/v2\/posts\/4706\/revisions"}],"predecessor-version":[{"id":4738,"href":"https:\/\/jnats.eu\/ro\/wp-json\/wp\/v2\/posts\/4706\/revisions\/4738"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/jnats.eu\/ro\/wp-json\/wp\/v2\/media\/4735"}],"wp:attachment":[{"href":"https:\/\/jnats.eu\/ro\/wp-json\/wp\/v2\/media?parent=4706"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jnats.eu\/ro\/wp-json\/wp\/v2\/categories?post=4706"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jnats.eu\/ro\/wp-json\/wp\/v2\/tags?post=4706"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}