{"id":21382,"date":"2022-09-03T16:41:06","date_gmt":"2022-09-03T08:41:06","guid":{"rendered":"https:\/\/www.meetyoucarbide.com\/?p=21382"},"modified":"2022-09-03T16:41:14","modified_gmt":"2022-09-03T08:41:14","slug":"4-key-points-you-should-know-about-hiphot-isostatic-pressing","status":"publish","type":"post","link":"https:\/\/www.meetyoucarbide.com\/tr\/hiphot-izostatik-presleme-hakkinda-bilmeniz-gereken-4-anahtar-nokta\/","title":{"rendered":"HIP (s\u0131cak izostatik pres) hakk\u0131nda bilmeniz gereken 4 \u00f6nemli nokta"},"content":{"rendered":"
\n

1. S\u0131cak izostatik presleme nedir?<\/h2>\n\n\n\n

HIP, bir bas\u0131n\u00e7 ve \u0131s\u0131 ileten ortam olarak y\u00fcksek s\u0131cakl\u0131k ve bas\u0131n\u00e7l\u0131 gaz kullan\u0131larak nesnel malzemenin izotropik bir s\u0131k\u0131\u015ft\u0131rma ve s\u0131k\u0131\u015ft\u0131rma teknolojisi olan S\u0131cak \u0130zostatik Preslemenin k\u0131saltmas\u0131d\u0131r (y\u00fczlerce ila 2000 \u2103 ve onlarca ila 200 MPa izostatik bas\u0131n\u00e7) \uff09. Argon en yayg\u0131n olarak kullan\u0131lan bas\u0131n\u00e7 ortam\u0131d\u0131r.<\/p>\n\n\n\n

1950'li y\u0131llarda ABD'de icat edilmi\u015f ve metal, sinterlenmi\u015f karb\u00fcr ve seramik gibi \u00e7e\u015fitli malzemelerin \u015fekillendirilmesi, sinterlenmesi, birle\u015ftirilmesi ve kusurlar\u0131n\u0131n giderilmesi i\u00e7in kullan\u0131lm\u0131\u015ft\u0131r.<\/p>\n\n\n\n

\u015eekil 1, g\u00f6r\u00fcn\u00fcm\u00fc g\u00f6sterir ve \u015eekil 2, HIP ekipman\u0131n\u0131n konfig\u00fcrasyonunu g\u00f6sterir.<\/p>\n\n\n\n

\"\"
Fig.1 HIP ekipman\u0131<\/figcaption><\/figure>\n\n\n\n

<\/p>\n\n\n\n

\"\"
\u015eekil.2 HIP ekipman\u0131n\u0131n \u015fematik \u00e7izimi<\/figcaption><\/figure>\n\n\n\n

<\/p>\n\n\n\n

2. Kal\u00e7a ve s\u0131cak presleme aras\u0131ndaki fark<\/h2>\n\n\n\n

S\u0131cak presleme kal\u00e7aya \u00e7ok benzer. Frezeleme, d\u00f6vme ve ekstr\u00fczyon da y\u00fcksek s\u0131cakl\u0131k ve y\u00fcksek bas\u0131n\u00e7 i\u00e7in ge\u00e7erlidir, ancak s\u0131cak izostatik preslemenin aksine izostatik presleme i\u00e7in ge\u00e7erli de\u011fildir.<\/p>\n\n\n\n

Kal\u00e7a ve s\u0131cak presleme aras\u0131ndaki en belirgin fark, kal\u00e7an\u0131n malzemelere izostatik bas\u0131n\u00e7 uygulamak i\u00e7in gaz bas\u0131nc\u0131n\u0131 kullanmas\u0131, s\u0131cak preslemenin ise yaln\u0131zca tek eksenli bas\u0131n\u00e7 uygulamas\u0131d\u0131r.<\/p>\n\n\n\n

S\u0131cak presleme ile kar\u015f\u0131la\u015ft\u0131r\u0131ld\u0131\u011f\u0131nda, kal\u00e7a, preslemeden sonra ilk \u015feklinden \u00e7ok farkl\u0131 olmayan bir malzeme \u015fekli sa\u011flayabilir. \u015eekli de\u011fi\u015ftirdikten sonra bile malzeme orijinal \u015feklini koruyabilir ve \u00fcr\u00fcn i\u015fleme ile nispeten daha az k\u0131s\u0131tlan\u0131r. Bu \u00f6zelliklerden tam anlam\u0131yla yararlan\u0131larak kal\u00e7a \u00e7e\u015fitli alanlarda uygulanm\u0131\u015ft\u0131r.<\/p>\n\n\n\n

S\u0131cak izostatik presleme ile s\u0131cak presleme aras\u0131ndaki fark\u0131 net bir \u015fekilde a\u00e7\u0131klamak i\u00e7in, s\u0131ras\u0131yla a malzemesine (i\u00e7inde delik olan metal) ve B malzemesine (u\u00e7lar\u0131 d\u00fczg\u00fcn olmayan metal) s\u0131cak izostatik preslemenin veya s\u0131cak preslemenin uyguland\u0131\u011f\u0131n\u0131 varsay\u0131yoruz.<\/p>\n\n\n\n

\u015eekil 3'te g\u00f6sterildi\u011fi gibi, e\u011fer kal\u00e7a teknolojisi kullan\u0131l\u0131rsa, a malzemesi b\u00fcz\u00fclecek ve i\u00e7 g\u00f6zenekler yok olana ve dif\u00fczyon etkisiyle birle\u015fene kadar ilk \u015feklini koruyacakt\u0131r. Ve B malzemesi, d\u00fczg\u00fcn olmayan kenara e\u015fit bir bas\u0131n\u00e7 uyguland\u0131\u011f\u0131 i\u00e7in \u015feklini hi\u00e7 de\u011fi\u015ftirmeyecektir.<\/p>\n\n\n\n

\u015eekil 4'te g\u00f6sterildi\u011fi gibi, s\u0131cak presleme durumunda, a malzemesi kal\u00e7a ile ayn\u0131 fenomende g\u00f6r\u00fcnecektir. B malzemesi ba\u015flang\u0131\u00e7taki d\u00fczg\u00fcn olmayan \u015feklini koruyamaz \u00e7\u00fcnk\u00fc bas\u0131n\u00e7 sadece d\u0131\u015fb\u00fckey k\u0131sma uygulan\u0131r. Malzeme a ve malzeme B, kullan\u0131lan kal\u0131plar\u0131n ve z\u0131mbalar\u0131n \u015fekillerine ba\u011fl\u0131 olarak, s\u0131cak preslemeden sonra farkl\u0131 nihai \u015fekillere sahip olacakt\u0131r. B\u00fcy\u00fck \u00f6l\u00e7ekli \u00fcr\u00fcnler ve kal\u0131planm\u0131\u015f par\u00e7alar \u00fcretmek i\u00e7in s\u0131cak presleme teknolojisinin uygulanmas\u0131, kal\u0131pla s\u00fcrt\u00fcnmenin neden oldu\u011fu d\u00fczensizlikten ve deformasyon s\u00fcrecinde s\u0131cakl\u0131k ve boyutun s\u0131n\u0131rland\u0131r\u0131lmas\u0131ndan kaynaklanmaktad\u0131r.\"\"<\/p>\n\n\n\n

\"\"
\u015eekil3 ve \u015eekil4<\/figcaption><\/figure>\n\n\n\n

3. Kal\u00e7a uygulama modu<\/h2>\n\n\n\n

Materials need to be treated according to the situation. The most typical methods include “capsule method” and “no capsule method”.<\/p>\n\n\n\n

As shown in the right figure, “capsule method” is to seal the powder or the main body molded from the powder in an airtight capsule and empty the capsule before hip.<\/p>\n\n\n\n

This “capsule method” can provide high density even for materials that are difficult to be sintered by ordinary sintering technology. Therefore, it is most commonly used in the pressure sintering process of powder materials. It is also used for diffusion bonding or high-pressure impregnation carbonization of different types of materials.<\/p>\n\n\n\n

A\u015fa\u011f\u0131daki tablo, kaps\u00fcls\u00fcz y\u00f6ntemin ana materyallerini ve kal\u00e7a tedavisi s\u0131cakl\u0131\u011f\u0131\/bas\u0131nc\u0131 \u00f6zetlemektedir.<\/p>\n\n\n\n

Malzemedeki g\u00f6zenekler izole, kapal\u0131 ve malzeme y\u00fczeyine ba\u011fl\u0131 de\u011filse kal\u00e7a i\u015flemi ile bu g\u00f6zenekler s\u0131k\u0131\u015ft\u0131r\u0131l\u0131p yok edilebilir. \u00d6te yandan, kal\u00e7a tedavisinden sonra bile malzeme y\u00fczeyine ba\u011fl\u0131 olan a\u00e7\u0131kl\u0131k s\u0131k\u0131lmaz. Bu nedenle, kapal\u0131 deliklere sahip malzemelerin kal\u00e7a i\u015flemi, t\u00fcm malzemenin y\u00fcksek yo\u011funlu\u011funu sa\u011flayabilir.<\/p>\n\n\n\n

This material does not require capsules for hip, which is called the “capsule free method”. This is used to remove residual pores on sintered parts, remove internal defects of castings, and repair parts damaged by fatigue or creep.<\/p>\n\n\n\n

4.HIP beton uygulamalar\u0131<\/h2>\n\n\n\n

Kal\u00e7a a\u015fa\u011f\u0131daki alanlarda yayg\u0131n olarak kullan\u0131lmaktad\u0131r:<\/p>\n\n\n\n

(1) tozun bas\u0131n\u00e7l\u0131 sinterlenmesi<\/p>\n\n\n\n

(2) farkl\u0131 malzeme t\u00fcrlerinin dif\u00fczyonla ba\u011flanmas\u0131<\/p>\n\n\n\n

(3) sinterlenmi\u015f par\u00e7alardaki art\u0131k g\u00f6zenekleri \u00e7\u0131kar\u0131n<\/p>\n\n\n\n

(4) d\u00f6k\u00fcmlerin i\u00e7 kusurlar\u0131n\u0131n giderilmesi<\/p>\n\n\n\n

(5) yorulma veya s\u00fcr\u00fcnme hasarl\u0131 par\u00e7alar\u0131n onar\u0131m\u0131<\/p>\n\n\n\n

(6) y\u00fcksek bas\u0131n\u00e7l\u0131 dald\u0131rma karbonizasyon y\u00f6ntemi<\/p>\n\n\n\n

Let’s take the production of cemented carbide as a specific example of applying hip technology.<\/p>\n\n\n\n

Semente karb\u00fcr, tokluk a\u00e7\u0131s\u0131ndan \u00e7elik ve di\u011fer metallerden daha d\u00fc\u015f\u00fckt\u00fcr ve kaba par\u00e7ac\u0131klar ve g\u00f6zenekler gibi kusurlara kar\u015f\u0131 \u00e7ok hassast\u0131r. Bu malzemelerin do\u011fal \u00f6zelliklerinden tam olarak yararlanabilmek i\u00e7in bu i\u00e7 kusurlar\u0131n giderilmesi gerekir ve kal\u00e7a bu kusurlar\u0131 gidermenin en etkili yoludur.<\/p>\n\n\n\n

Kobalt gibi bir metalin s\u0131v\u0131 faz\u0131, sinterlenmi\u015f karb\u00fcr sinterlenirken ba\u011flay\u0131c\u0131 faz olarak kullan\u0131ld\u0131\u011f\u0131ndan, s\u0131radan sinterlenmi\u015f g\u00f6vde teorik yo\u011funlu\u011fa yak\u0131n bir yo\u011funlu\u011fa s\u0131k\u0131\u015ft\u0131r\u0131labilir. Bununla birlikte, sinterlenmi\u015f g\u00f6vdede, sinterlenmi\u015f karb\u00fcrde \u00f6l\u00fcmc\u00fcl bir rol oynayan ve normal ko\u015fullar alt\u0131nda ta\u015f\u0131nabilecek bas\u0131n\u00e7 alt\u0131nda k\u0131r\u0131lan ince g\u00f6zenekler vard\u0131r. S\u0131cak izostatik preslemenin amac\u0131, sinterlenmi\u015f g\u00f6vdedeki baz\u0131 g\u00f6zenekleri tamamen ortadan kald\u0131rmakt\u0131r.<\/p>\n\n\n\n

Tablo 1, s\u0131cak izostatik presleme alt\u0131nda mekanik \u00f6zelliklerin de\u011fi\u015fimini g\u00f6sterir ve \u015eekil 3, s\u0131cak izostatik preslemeden \u00f6nce ve sonra b\u00fck\u00fclme mukavemetinin Weibull diyagram\u0131n\u0131 g\u00f6sterir.<\/p>\n\n\n\n

Tablo 1 HIP i\u015fleminin semente karb\u00fcr\u00fcn mekanik \u00f6zellikleri \u00fczerindeki etkisi <\/strong><\/strong><\/p>\n\n\n\n

 <\/strong><\/strong><\/td>HIP'den \u00f6nce<\/strong><\/strong><\/td>HIP'den sonra<\/strong><\/strong><\/td><\/tr>
Ba\u011f\u0131l yo\u011funluk [%]<\/strong><\/strong><\/td>neredeyse 100<\/td>neredeyse 100<\/td><\/tr>
Sertlik [HRA]<\/strong><\/strong><\/td>91.0<\/td>91.0<\/td><\/tr>
E\u011filme mukavemeti [Mpa]<\/strong><\/strong><\/td>2450<\/td>2940<\/td><\/tr>
k\u0131r\u0131lma toklu\u011fu<\/strong>
<\/strong>[Mpa\u00b7m<\/strong>1\/2<\/strong>]<\/strong><\/strong><\/td>		10<\/td>10.5<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
\"\"
\u015eekil 5 HIP i\u015fleminden \u00f6nce ve sonra b\u00fck\u00fclme mukavemetinin Weibull grafi\u011fi<\/figcaption><\/figure>\n\n\n\n

Yukar\u0131da g\u00f6sterildi\u011fi gibi, semente karb\u00fcr\u00fcn yo\u011funlu\u011fu ve sertli\u011fi HIP i\u015flemiyle de\u011fi\u015fmez. Bununla birlikte, ince g\u00f6zeneklerin giderilmesiyle, e\u011filme mukavemeti b\u00fcy\u00fck \u00f6l\u00e7\u00fcde iyile\u015ftirilir ve mukavemetteki da\u011f\u0131l\u0131m, g\u00fcvenilirli\u011fi art\u0131rmak i\u00e7in \u00e7ok k\u00fc\u00e7\u00fck olur.<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

1.What is hot isostatic pressing? HIP is the abbreviation of Hot Isostatic Pressing, which is a isotropic compression and compacting technology of objective material by use of high-temperature and pressure gas as a pressure and heat transmitting medium\uff08hundreds to 2000 \u2103 and an isostatic pressure of tens to 200 MPa\uff09. Argon is the most commonly…<\/p>","protected":false},"author":2,"featured_media":21383,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[79],"tags":[],"jetpack_featured_media_url":"https:\/\/www.meetyoucarbide.com\/wp-content\/uploads\/2022\/09\/image.png","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.meetyoucarbide.com\/tr\/wp-json\/wp\/v2\/posts\/21382"}],"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\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/tr\/wp-json\/wp\/v2\/comments?post=21382"}],"version-history":[{"count":0,"href":"https:\/\/www.meetyoucarbide.com\/tr\/wp-json\/wp\/v2\/posts\/21382\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/tr\/wp-json\/wp\/v2\/media\/21383"}],"wp:attachment":[{"href":"https:\/\/www.meetyoucarbide.com\/tr\/wp-json\/wp\/v2\/media?parent=21382"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/tr\/wp-json\/wp\/v2\/categories?post=21382"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/tr\/wp-json\/wp\/v2\/tags?post=21382"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}