{"id":1650,"date":"2019-05-22T02:47:38","date_gmt":"2019-05-22T02:47:38","guid":{"rendered":"http:\/\/www.meetyoucarbide.com\/single-post-characteristics-of-cemented-carbide\/"},"modified":"2020-05-04T13:12:06","modified_gmt":"2020-05-04T13:12:06","slug":"characteristics-of-cemented-carbide","status":"publish","type":"post","link":"https:\/\/www.meetyoucarbide.com\/tr\/ozellikleri-of-semente-karbur\/","title":{"rendered":"\u00c7imentolu Karb\u00fcr\u00fcn \u00d6zellikleri"},"content":{"rendered":"<div class=\"vgblk-rw-wrapper limit-wrapper\">\n<div>\n<div>\u00c7imentolu karb\u00fcr, genellikle bir karb\u00fcr olan refrakter metal sert bile\u015fi\u011finden (sert faz) ve toz metalurjisi y\u00f6ntemiyle elde edilen metal ba\u011flay\u0131c\u0131dan (ba\u011flama faz\u0131) yap\u0131l\u0131r. Kesici tak\u0131mlar i\u00e7in sert bir ala\u015f\u0131m olarak, yayg\u0131n olarak kullan\u0131lan karb\u00fcrler tungsten karb\u00fcr (WC), titanyum karb\u00fcr (TiC) ve tantal karb\u00fcr (TaC), niyobyum karb\u00fcr (NbC) vb. Dir. Semente karb\u00fcr esas olarak kobalt i\u00e7eri\u011fine ba\u011fl\u0131d\u0131r.<\/div>\n<p><img decoding=\"async\" src=\"https:\/\/www.meetyoucarbide.com\/wp-content\/uploads\/2019\/05\/f875f9_0104c5eb7ca443a69f7b7d09e19d8227mv2-1.png\" alt=\"\" title=\"\"><img decoding=\"async\" src=\"https:\/\/www.meetyoucarbide.com\/wp-content\/uploads\/2019\/05\/f875f9_60734f182ff74f24b8661120a6519174mv2-1.png\" alt=\"\" title=\"\"><img decoding=\"async\" src=\"https:\/\/www.meetyoucarbide.com\/wp-content\/uploads\/2019\/05\/f875f9_9e5d90b7b82b4dc5820e62b632e0724amv2-1.png\" alt=\"\" title=\"\"><img decoding=\"async\" src=\"https:\/\/www.meetyoucarbide.com\/wp-content\/uploads\/2019\/05\/f875f9_a477ffbe512a47a687bf703b5407fb08mv2-1.png\" alt=\"\" title=\"\"><\/p>\n<div>Y\u00fcksek erime noktas\u0131, y\u00fcksek sertlik (bak\u0131n\u0131z Tablo 1-1), iyi kimyasal stabilite ve \u00e7imentolu karb\u00fcrdeki karb\u00fcrlerin sahip oldu\u011fu iyi termal stabilite ve \u00e7ok miktarda y\u00fcksek s\u0131cakl\u0131k karbon malzemesi, sertlik ve diren\u00e7 A\u015f\u0131nma ve \u0131s\u0131 Diren\u00e7 y\u00fcksek h\u0131z \u00e7eli\u011finden daha y\u00fcksektir.<\/div>\n<div> Sert ala\u015f\u0131m sert faz\u0131n\u0131n ana bile\u015feni WC&#039;dir. WC iyi a\u015f\u0131nma direncine sahiptir. Ancak baz\u0131 karb\u00fcrler ayn\u0131 sertli\u011fe ve WC&#039;ye sahiptir, ancak kar\u015f\u0131la\u015ft\u0131r\u0131labilir a\u015f\u0131nma direncine sahip de\u011fildir. Ayr\u0131ca, WC daha y\u00fcksek akma dayan\u0131m\u0131na sahiptir (Tablo 1-2), bu nedenle plastik deformasyona kar\u015f\u0131 direnci daha iyidir. WC, tak\u0131m malzemeleri yapmak i\u00e7in en arzu edilen \u00f6zelliklerden biri olan iyi termal iletkenli\u011fe sahiptir. Ek olarak. WC, \u00e7eli\u011fin yakla\u015f\u0131k 1 \/ 3&#039;\u00fc kadar d\u00fc\u015f\u00fck bir termal genle\u015fme katsay\u0131s\u0131na sahiptir. WC&#039;nin esneklik mod\u00fcl\u00fc \u00e7eli\u011fin \u00fc\u00e7 kat\u0131d\u0131r ve burulma mod\u00fcl\u00fc \u00e7eli\u011fin iki kat\u0131d\u0131r. Bu nedenle, \u00e7imentolu karb\u00fcr\u00fcn bas\u0131n\u00e7 mukavemeti de \u00e7elikten daha y\u00fcksektir. Buna ek olarak, WC oda s\u0131cakl\u0131\u011f\u0131nda iyi korozyon ve oksidasyon direncine, iyi elektrik direncine ve y\u00fcksek e\u011filme mukavemetine sahiptir. WC&#039;nin bu m\u00fckemmel \u00f6zellikleri ana bile\u015feni ile sert bir ala\u015f\u0131ma aktar\u0131lm\u0131\u015ft\u0131r.<\/div>\n<p><img decoding=\"async\" src=\"https:\/\/www.meetyoucarbide.com\/wp-content\/uploads\/2019\/05\/f875f9_c2da496d930948a39462d73201065bf2mv2-1.png\" alt=\"\" title=\"\"><\/p>\n<div>Y\u00fcksek h\u0131z \u00e7eli\u011fi ile kar\u015f\u0131la\u015ft\u0131r\u0131ld\u0131\u011f\u0131nda, \u00e7imentolu karb\u00fcr\u00fcn sertli\u011fi, HSS&#039;nin sertli\u011finden (HRC63-70 veya HRA83-86.6) \u00e7ok daha y\u00fcksek olan HRA89-94&#039;t\u00fcr. Semente karb\u00fcr i\u00e7in izin verilen maksimum kesme s\u0131cakl\u0131\u011f\u0131 800-1000 \u00b0 C veya daha fazlas\u0131na ula\u015fabilir, bu da HSS&#039;lerden (550-650 \u2103) \u00e7ok daha y\u00fcksek olabilir. Semente karb\u00fcr\u00fcn y\u00fcksek s\u0131cakl\u0131k sertli\u011fi, y\u00fcksek h\u0131zl\u0131 \u00e7eli\u011fin normal s\u0131cakl\u0131k sertli\u011fiyle ayn\u0131 olan 540 \u00b0 C&#039;de HRA82-87 olabilir. 760 \u00b0 C&#039;deki sertlik HRA 77-85&#039;tir ve HRA 73-76&#039;da 1000-1100 \u00b0 C ortam\u0131nda muhafaza edilebilir. Ayr\u0131ca, Karbidin \u00e7imentolu karb\u00fcr\u00fcn a\u015f\u0131nma direnci en iyi HSS&#039;den 16-20 kat daha y\u00fcksektir . Y\u00fcksek s\u0131cakl\u0131k sertli\u011fi ve a\u015f\u0131nma direnci nedeniyle, \u00e7imentolu karb\u00fcrler y\u00fcksek h\u0131z \u00e7eli\u011finden \u00e7ok daha y\u00fcksek kesme performans\u0131na sahiptir ve tak\u0131m dayan\u0131kl\u0131l\u0131\u011f\u0131n\u0131 onlarca kat art\u0131rabilir. S\u0131radan yap\u0131sal \u00e7eli\u011fi i\u015flerken, izin verilen kesme h\u0131z\u0131 y\u00fcksek h\u0131z \u00e7eli\u011fi tak\u0131mlar\u0131ndan 4-10 kat daha y\u00fcksektir.<\/div>\n<div>Bir kesici alet malzemesi olarak, \u00e7imentolu karb\u00fcr yayg\u0131n olarak kullan\u0131lmaktad\u0131r (bak\u0131n\u0131z Tablo 1-3). Tornalama i\u015fleminde, az say\u0131da k\u00fc\u00e7\u00fck \u00e7apl\u0131 delik ve baz\u0131 demir d\u0131\u015f\u0131 metal i\u015f par\u00e7alar\u0131 hari\u00e7, hemen hemen hepsi karb\u00fcr tornalama tak\u0131mlar\u0131 ile i\u015flenebilir. Delme i\u015fleminde, mevcut karb\u00fcr matkaplara ek olarak, karb\u00fcr matkaplar, derin delik matkaplar, karb\u00fcr enjeksiyon matkaplar\u0131 ve de\u011fi\u015ftirilebilir karb\u00fcr matkaplar da \u00e7elik i\u015flemek i\u00e7in ba\u015far\u0131yla kullan\u0131lm\u0131\u015ft\u0131r. Ayr\u0131ca, karb\u00fcr parmak frezeler yayg\u0131n olarak kullan\u0131lmaktad\u0131r. Rayba, parmak freze, k\u00fc\u00e7\u00fck mod\u00fcl di\u015fli ocak, sert di\u015f y\u00fczeyleri i\u00e7in orta ve b\u00fcy\u00fck mod\u00fcl di\u015fliler (m40 ocak ve m12 pim kesici gibi), bro\u015flar ve sert ala\u015f\u0131mlar kullanan di\u011fer aletler de artmaktad\u0131r. Alet malzemelerindeki \u00e7imentolu karb\u00fcr oran\u0131 HSS&#039;den daha d\u00fc\u015f\u00fck ve ikinci s\u0131rada olmas\u0131na ra\u011fmen, kesme tala\u015flar\u0131n\u0131n oran\u0131 68% kadar y\u00fcksektir. (ABD&#039;de \u00c7in&#039;i ziyaret eden 1979 ABD&#039;li \u00e7imentolu karb\u00fcr \u015firketi profes\u00f6r\u00fcne g\u00f6re, ABD&#039;de karb\u00fcr kesme aletleri 80% kesme yongalar\u0131n\u0131 kesmi\u015ftir.). Raporlara g\u00f6re, baz\u0131 \u00fclkelerde 90%&#039;den fazla tornalama aleti ve 55%&#039;den fazla freze kesicisi semente karb\u00fcrden yap\u0131lm\u0131\u015ft\u0131r ve bu e\u011filim b\u00fcy\u00fcmeye devam etmektedir.<\/div>\n<\/div>\n<\/div>\n<p><!-- .vgblk-rw-wrapper --><\/p>","protected":false},"excerpt":{"rendered":"<p>Cemented carbide is made of refractory metal hard compound (hard phase),which is generally a carbide, and metal binder (binding phase)obtained by powder metallurgy method,. As a hard alloy for cutting tools, the commonly used carbides are tungsten carbide (WC), titanium carbide (TiC), and tantalum carbide(TaC), niobium carbide (NbC), etc. The mostly used binder is Co&#8230;.<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[79],"tags":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.meetyoucarbide.com\/tr\/wp-json\/wp\/v2\/posts\/1650"}],"collection":[{"href":"https:\/\/www.meetyoucarbide.com\/tr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.meetyoucarbide.com\/tr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/tr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/tr\/wp-json\/wp\/v2\/comments?post=1650"}],"version-history":[{"count":0,"href":"https:\/\/www.meetyoucarbide.com\/tr\/wp-json\/wp\/v2\/posts\/1650\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.meetyoucarbide.com\/tr\/wp-json\/wp\/v2\/media?parent=1650"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/tr\/wp-json\/wp\/v2\/categories?post=1650"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/tr\/wp-json\/wp\/v2\/tags?post=1650"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}