{"id":8534,"date":"2020-07-01T18:59:15","date_gmt":"2020-07-01T18:59:15","guid":{"rendered":"https:\/\/nanovea.com\/?p=8534"},"modified":"2023-11-13T22:17:09","modified_gmt":"2023-11-13T22:17:09","slug":"bilyali-rulman-asinma-direnci-kullanimi-makro-triboloji","status":"publish","type":"post","link":"https:\/\/nanovea.com\/tr\/bilyali-rulman-asinma-direnci-kullanimi-makro-triboloji\/","title":{"rendered":"Bilyal\u0131 Rulmanlar: Y\u00fcksek Kuvvet A\u015f\u0131nma Direnci \u00c7al\u0131\u015fmas\u0131"},"content":{"rendered":"


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

G\u0130R\u0130\u015e<\/strong><\/em><\/h2>\n

Bilyal\u0131 rulman, d\u00f6nme s\u00fcrt\u00fcnmesini azaltmak ve radyal ve eksenel y\u00fckleri desteklemek i\u00e7in bilyalar\u0131 kullan\u0131r. Yatak yataklar\u0131 aras\u0131ndaki yuvarlanan bilyalar, birbirine kar\u015f\u0131 kayan iki d\u00fcz y\u00fczeye k\u0131yasla \u00e7ok daha d\u00fc\u015f\u00fck s\u00fcrt\u00fcnme katsay\u0131s\u0131 (COF) \u00fcretir. Bilyal\u0131 rulmanlar s\u0131kl\u0131kla y\u00fcksek temas gerilimi seviyelerine, a\u015f\u0131nmaya ve y\u00fcksek s\u0131cakl\u0131klar gibi a\u015f\u0131r\u0131 \u00e7evre ko\u015fullar\u0131na maruz kal\u0131r. Bu nedenle, bilyalar\u0131n y\u00fcksek y\u00fckler ve a\u015f\u0131r\u0131 \u00e7evre ko\u015fullar\u0131 alt\u0131nda a\u015f\u0131nma direnci, bilyal\u0131 rulman\u0131n \u00f6mr\u00fcn\u00fc uzatmak, onar\u0131m ve de\u011fi\u015ftirme masraflar\u0131n\u0131 ve s\u00fcresini azaltmak a\u00e7\u0131s\u0131ndan kritik \u00f6neme sahiptir.
\nBilyal\u0131 rulmanlar, hareketli par\u00e7alar\u0131 i\u00e7eren neredeyse t\u00fcm uygulamalarda bulunabilir. Yayg\u0131n olarak havac\u0131l\u0131k ve otomobil gibi ula\u015f\u0131m end\u00fcstrilerinin yan\u0131 s\u0131ra stres \u00e7ark\u0131 ve kaykay gibi \u00fcr\u00fcnler \u00fcreten oyuncak end\u00fcstrisinde de kullan\u0131l\u0131rlar.<\/p>\n

Y\u00dcKSEK Y\u00dcKLERDE RULMAN A\u015eINMASININ DE\u011eERLEND\u0130R\u0130LMES\u0130<\/strong><\/em><\/h2>\n

Bilyal\u0131 rulmanlar geni\u015f bir malzeme listesinden yap\u0131labilir. Yayg\u0131n olarak kullan\u0131lan malzemeler, paslanmaz \u00e7elik ve krom \u00e7elik gibi metaller veya tungsten karb\u00fcr (WC) ve silikon nitr\u00fcr (Si3n4) gibi seramikler aras\u0131nda de\u011fi\u015fir. \u00dcretilen bilyal\u0131 rulmanlar\u0131n, verilen uygulama ko\u015fullar\u0131 i\u00e7in ideal a\u015f\u0131nma direncine sahip olmas\u0131n\u0131 sa\u011flamak i\u00e7in, y\u00fcksek y\u00fckler alt\u0131nda g\u00fcvenilir tribolojik de\u011ferlendirmeler gereklidir. Tribolojik testler, hedeflenen uygulama i\u00e7in en iyi aday\u0131 se\u00e7mek amac\u0131yla farkl\u0131 bilyal\u0131 rulmanlar\u0131n a\u015f\u0131nma davran\u0131\u015flar\u0131n\u0131n kontroll\u00fc ve izlenen bir \u015fekilde \u00f6l\u00e7\u00fclmesine ve kar\u015f\u0131la\u015ft\u0131r\u0131lmas\u0131na yard\u0131mc\u0131 olur.<\/p>\n

\u00d6L\u00c7\u00dcM HEDEFI<\/strong><\/em><\/h2>\n

Bu \u00e7al\u0131\u015fmada bir Nanovea sergiliyoruz Tribometre<\/a> Farkl\u0131 bilyal\u0131 rulmanlar\u0131n y\u00fcksek y\u00fckler alt\u0131nda a\u015f\u0131nma direncini kar\u015f\u0131la\u015ft\u0131rmak i\u00e7in ideal bir ara\u00e7 olarak.
\n\"\"<\/a><\/p>\n

\u015eekil 1: Rulman testinin kurulumu.<\/em><\/h6>\n

TEST PROSED\u00dcR\u00dc<\/strong><\/em><\/h2>\n

Farkl\u0131 malzemelerden yap\u0131lm\u0131\u015f bilyal\u0131 rulmanlar\u0131n s\u00fcrt\u00fcnme katsay\u0131s\u0131, COF ve a\u015f\u0131nma direnci Nanovea Tribometre ile de\u011ferlendirildi. Kar\u015f\u0131t malzeme olarak P100 kumlu z\u0131mpara kullan\u0131ld\u0131. Bilyal\u0131 rulmanlar\u0131n a\u015f\u0131nma izleri bir test cihaz\u0131 kullan\u0131larak incelendi. Nanovea<\/strong> A\u015f\u0131nma testleri tamamland\u0131ktan sonra 3D Temass\u0131z Profil Olu\u015fturucu. Test parametreleri Tablo 1'de \u00f6zetlenmi\u015ftir. A\u015f\u0131nma oran\u0131, K<\/strong>form\u00fcl\u00fc kullan\u0131larak de\u011ferlendirilmi\u015ftir K=V\/(F\u00d7s)<\/strong>, nerede V <\/strong>a\u015f\u0131nm\u0131\u015f hacimdir, F<\/strong> normal y\u00fck ve s<\/strong> kayma mesafesidir. Top a\u015f\u0131nma izleri bir uzman taraf\u0131ndan de\u011ferlendirildi. Nanovea<\/strong> Hassas a\u015f\u0131nma hacmi \u00f6l\u00e7\u00fcm\u00fc sa\u011flamak i\u00e7in 3D Temass\u0131z Profiler.
\nOtomatik motorlu radyal konumland\u0131rma \u00f6zelli\u011fi, tribometrenin test s\u00fcresi boyunca a\u015f\u0131nma izinin yar\u0131\u00e7ap\u0131n\u0131 azaltmas\u0131na olanak tan\u0131r. Bu test moduna spiral test ad\u0131 verilir ve bilyeli yata\u011f\u0131n her zaman z\u0131mpara ka\u011f\u0131d\u0131n\u0131n yeni bir y\u00fczeyi \u00fczerinde kaymas\u0131n\u0131 sa\u011flar (\u015eekil 2). Bilye \u00fczerinde a\u015f\u0131nma direnci testinin tekrarlanabilirli\u011fini \u00f6nemli \u00f6l\u00e7\u00fcde art\u0131r\u0131r. Dahili h\u0131z kontrol\u00fc i\u00e7in geli\u015fmi\u015f 20 bit kodlay\u0131c\u0131 ve harici konum kontrol\u00fc i\u00e7in 16 bit kodlay\u0131c\u0131, hassas ger\u00e7ek zamanl\u0131 h\u0131z ve konum bilgisi sa\u011flayarak, kontakta sabit do\u011frusal kayma h\u0131z\u0131 elde etmek i\u00e7in d\u00f6nme h\u0131z\u0131n\u0131n s\u00fcrekli olarak ayarlanmas\u0131na olanak tan\u0131r.
\nBu \u00e7al\u0131\u015fmada \u00e7e\u015fitli bilya malzemeleri aras\u0131ndaki a\u015f\u0131nma davran\u0131\u015f\u0131n\u0131 basitle\u015ftirmek i\u00e7in P100 Grit z\u0131mpara ka\u011f\u0131d\u0131n\u0131n kullan\u0131ld\u0131\u011f\u0131n\u0131 ve ba\u015fka herhangi bir malzeme y\u00fczeyiyle de\u011fi\u015ftirilebilece\u011fini l\u00fctfen unutmay\u0131n. S\u0131v\u0131 veya ya\u011flay\u0131c\u0131 gibi ger\u00e7ek uygulama ko\u015fullar\u0131 alt\u0131nda \u00e7ok \u00e7e\u015fitli malzeme ba\u011flant\u0131lar\u0131n\u0131n performans\u0131n\u0131 sim\u00fcle etmek i\u00e7in herhangi bir kat\u0131 malzeme ikame edilebilir.
\n\"\"<\/p>\n

\u015eekil 2: Z\u0131mpara ka\u011f\u0131d\u0131 \u00fczerinde bilya yata\u011f\u0131 i\u00e7in spiral ge\u00e7i\u015flerin g\u00f6sterimi.<\/em><\/h6>\n
\"\"<\/a><\/h6>\n
Tablo 1: A\u015f\u0131nma \u00f6l\u00e7\u00fcmlerinin test parametreleri.<\/em><\/h6>\n

 <\/p>\n

SONU\u00c7LAR & TARTI\u015eMA<\/strong><\/em><\/h2>\n

A\u015f\u0131nma oran\u0131, bilyal\u0131 rulman\u0131n servis \u00f6mr\u00fcn\u00fc belirlemek i\u00e7in hayati bir fakt\u00f6rd\u00fcr; rulman performans\u0131n\u0131 ve verimlili\u011fini art\u0131rmak i\u00e7in d\u00fc\u015f\u00fck bir COF arzu edilir. \u015eekil 3, testler s\u0131ras\u0131nda farkl\u0131 bilyal\u0131 rulmanlar i\u00e7in COF'nin geli\u015fimini z\u0131mpara ka\u011f\u0131d\u0131yla kar\u015f\u0131la\u015ft\u0131rmaktad\u0131r. Cr \u00c7elik bilya a\u015f\u0131nma testi s\u0131ras\u0131nda ~0,4'l\u00fck bir COF art\u0131\u015f\u0131 g\u00f6sterirken, SS440 ve Al2O3 bilyal\u0131 rulmanlar i\u00e7in ~0,32 ve ~0,28'dir. \u00d6te yandan, WC topu a\u015f\u0131nma testi boyunca ~0,2'lik sabit bir COF sergiler. Bilyal\u0131 yataklar\u0131n kaba z\u0131mpara ka\u011f\u0131d\u0131 y\u00fczeyine do\u011fru kayma hareketinin neden oldu\u011fu titre\u015fimlere atfedilen, her test boyunca g\u00f6zlemlenebilir COF de\u011fi\u015fimi g\u00f6r\u00fclebilir.<\/p>\n

\"\"<\/a><\/p>\n

 <\/p>\n

\u015eekil 3: A\u015f\u0131nma testleri s\u0131ras\u0131nda COF'nin geli\u015fimi.<\/em><\/h6>\n

\u015eekil 4 ve \u015eekil 5, s\u0131ras\u0131yla bir optik mikroskop ve Nanovea Temass\u0131z optik profil olu\u015fturucu ile \u00f6l\u00e7\u00fcld\u00fckten sonra bilyal\u0131 rulmanlar\u0131n a\u015f\u0131nma izlerini kar\u015f\u0131la\u015ft\u0131rmaktad\u0131r ve Tablo 2, a\u015f\u0131nma izi analizinin sonu\u00e7lar\u0131n\u0131 \u00f6zetlemektedir. Nanovea 3D profil olu\u015fturucu, bilyal\u0131 rulmanlar\u0131n a\u015f\u0131nma hacmini hassas bir \u015fekilde belirleyerek farkl\u0131 bilyal\u0131 rulmanlar\u0131n a\u015f\u0131nma oranlar\u0131n\u0131n hesaplanmas\u0131n\u0131 ve kar\u015f\u0131la\u015ft\u0131r\u0131lmas\u0131n\u0131 m\u00fcmk\u00fcn k\u0131lar. A\u015f\u0131nma testleri sonras\u0131nda Cr \u00c7elik ve SS440 bilyalar\u0131n seramik bilyalara (Al2O3 ve WC) k\u0131yasla \u00e7ok daha b\u00fcy\u00fck d\u00fczle\u015fmi\u015f a\u015f\u0131nma izleri sergiledikleri g\u00f6zlemlenebilmektedir. Cr \u00c7elik ve SS440 bilyalar s\u0131ras\u0131yla 3,7\u00d710-3 ve 3,2\u00d710-3 m3\/N\u00b7m'lik kar\u015f\u0131la\u015ft\u0131r\u0131labilir a\u015f\u0131nma oranlar\u0131na sahiptir. Kar\u015f\u0131la\u015ft\u0131r\u0131ld\u0131\u011f\u0131nda, Al2O3 topu 7,2\u00d710-4 m3\/N\u00b7m a\u015f\u0131nma oran\u0131yla geli\u015fmi\u015f bir a\u015f\u0131nma direnci sergiliyor. WC topu, s\u0131\u011f a\u015f\u0131nma izi alan\u0131nda neredeyse hi\u00e7 k\u00fc\u00e7\u00fck \u00e7izikler g\u00f6stermez, bu da a\u015f\u0131nma oran\u0131n\u0131n 3,3\u00d710-6 mm3\/N\u00b7m kadar \u00f6nemli \u00f6l\u00e7\u00fcde azalmas\u0131na neden olur.
\n\"\"<\/a><\/p>\n

\u015eekil 4: Testlerden sonra bilyal\u0131 rulmanlardaki a\u015f\u0131nma izleri.<\/i><\/h6>\n

\"\"<\/a><\/p>\n

\u015eekil 5: Bilyal\u0131 rulmanlardaki a\u015f\u0131nma izlerinin 3 boyutlu morfolojisi.<\/em><\/h6>\n

\"\"<\/p>\n

Tablo 2: Bilyal\u0131 rulmanlar\u0131n a\u015f\u0131nma izi analizi.<\/em><\/h6>\n

\u015eekil 6, d\u00f6rt bilyeli yata\u011f\u0131n z\u0131mpara ka\u011f\u0131d\u0131 \u00fczerinde olu\u015fturdu\u011fu a\u015f\u0131nma izlerinin mikroskop g\u00f6r\u00fcnt\u00fclerini g\u00f6stermektedir. WC topunun en \u015fiddetli a\u015f\u0131nma izini olu\u015fturdu\u011fu (yolundaki neredeyse t\u00fcm kum par\u00e7ac\u0131klar\u0131n\u0131 giderdi\u011fi) ve en iyi a\u015f\u0131nma direncine sahip oldu\u011fu a\u00e7\u0131kt\u0131r. Buna kar\u015f\u0131l\u0131k, Cr \u00c7elik ve SS440 bilyalar, z\u0131mpara ka\u011f\u0131d\u0131n\u0131n a\u015f\u0131nma izi \u00fczerinde b\u00fcy\u00fck miktarda metal kal\u0131nt\u0131s\u0131 b\u0131rakt\u0131.
\nBu g\u00f6zlemler ayr\u0131ca spiral testin faydas\u0131n\u0131n \u00f6nemini g\u00f6stermektedir. Bilyal\u0131 yata\u011f\u0131n her zaman z\u0131mpara ka\u011f\u0131d\u0131n\u0131n yeni y\u00fczeyinde kaymas\u0131n\u0131 sa\u011flar ve bu da a\u015f\u0131nma direnci testinin tekrarlanabilirli\u011fini \u00f6nemli \u00f6l\u00e7\u00fcde art\u0131r\u0131r.
\n\"\"<\/a><\/p>\n

\u015eekil 6: Farkl\u0131 bilyal\u0131 yataklara kar\u015f\u0131 z\u0131mpara ka\u011f\u0131d\u0131 \u00fczerindeki a\u015f\u0131nma izleri.<\/em><\/h6>\n

\"\"<\/a><\/p>\n

SONU\u00c7<\/strong><\/em><\/h2>\n

Bilyal\u0131 rulmanlar\u0131n y\u00fcksek bas\u0131n\u00e7 alt\u0131ndaki a\u015f\u0131nma direnci, servis performanslar\u0131nda hayati bir rol oynar. Seramik bilyal\u0131 rulmanlar, y\u00fcksek stres ko\u015fullar\u0131nda \u00f6nemli \u00f6l\u00e7\u00fcde art\u0131r\u0131lm\u0131\u015f a\u015f\u0131nma direncine sahiptir ve rulman onar\u0131m\u0131 veya de\u011fi\u015ftirilmesi nedeniyle zaman ve maliyeti azalt\u0131r. Bu \u00e7al\u0131\u015fmada WC bilyal\u0131 rulman\u0131, \u00e7elik rulmanlara k\u0131yasla \u00f6nemli \u00f6l\u00e7\u00fcde daha y\u00fcksek bir a\u015f\u0131nma direnci sergiliyor ve bu da onu ciddi a\u015f\u0131nman\u0131n meydana geldi\u011fi rulman uygulamalar\u0131 i\u00e7in ideal bir aday haline getiriyor.
\nNanovea Tribometre, 2000 N'a kadar y\u00fckler i\u00e7in y\u00fcksek tork kapasitesi ve 0,01 ile 15.000 rpm aras\u0131ndaki d\u00f6n\u00fc\u015f h\u0131zlar\u0131 i\u00e7in hassas ve kontroll\u00fc motorla tasarlanm\u0131\u015ft\u0131r. \u00d6nceden entegre edilmi\u015f tek bir sistemde iste\u011fe ba\u011fl\u0131 y\u00fcksek s\u0131cakl\u0131kta a\u015f\u0131nma ve ya\u011flama mod\u00fclleri ile ISO ve ASTM uyumlu d\u00f6ner ve do\u011frusal modlar\u0131 kullanarak tekrarlanabilir a\u015f\u0131nma ve s\u00fcrt\u00fcnme testleri sunar. Bu e\u015fsiz aral\u0131k, kullan\u0131c\u0131lar\u0131n bilyal\u0131 rulmanlar\u0131n y\u00fcksek stres, a\u015f\u0131nma ve y\u00fcksek s\u0131cakl\u0131k gibi farkl\u0131 zorlu \u00e7al\u0131\u015fma ortamlar\u0131n\u0131 sim\u00fcle etmelerine olanak tan\u0131r. Ayn\u0131 zamanda, y\u00fcksek y\u00fckler alt\u0131nda a\u015f\u0131nmaya kar\u015f\u0131 \u00fcst\u00fcn diren\u00e7li malzemelerin tribolojik davran\u0131\u015flar\u0131n\u0131 niceliksel olarak de\u011ferlendirmek i\u00e7in ideal bir ara\u00e7 g\u00f6revi g\u00f6r\u00fcr.
\nNanovea 3D Temass\u0131z Profiler, hassas a\u015f\u0131nma hacmi \u00f6l\u00e7\u00fcmleri sa\u011flar ve a\u015f\u0131nma izlerinin ayr\u0131nt\u0131l\u0131 morfolojisini analiz eden bir ara\u00e7 g\u00f6revi g\u00f6rerek a\u015f\u0131nma mekanizmalar\u0131n\u0131n temel anlay\u0131\u015f\u0131na ili\u015fkin ek bilgiler sa\u011flar.<\/p>\n

Taraf\u0131ndan haz\u0131rlanm\u0131\u015ft\u0131r
\nDuanjie Li, PhD, Jonathan Thomas ve Pierre Leroux<\/p>","protected":false},"excerpt":{"rendered":"

INTRODUCTION A ball bearing uses balls to reduce rotational friction and support radial and axial loads. The rolling balls between the bearing races produce much lower coefficient of friction (COF) compared to two flat surfaces sliding against each other. Ball bearings are often exposed to high contact stress levels, wear and extreme environmental conditions such […]<\/p>","protected":false},"author":7,"featured_media":8608,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":""},"categories":[7,349,372,373,336],"tags":[],"class_list":["post-8534","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-application-notes","category-laboratory-testing","category-linear-tribology","category-rotational-tribology","category-tribology-testing"],"_links":{"self":[{"href":"https:\/\/nanovea.com\/tr\/wp-json\/wp\/v2\/posts\/8534","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nanovea.com\/tr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nanovea.com\/tr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nanovea.com\/tr\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/nanovea.com\/tr\/wp-json\/wp\/v2\/comments?post=8534"}],"version-history":[{"count":53,"href":"https:\/\/nanovea.com\/tr\/wp-json\/wp\/v2\/posts\/8534\/revisions"}],"predecessor-version":[{"id":23408,"href":"https:\/\/nanovea.com\/tr\/wp-json\/wp\/v2\/posts\/8534\/revisions\/23408"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nanovea.com\/tr\/wp-json\/wp\/v2\/media\/8608"}],"wp:attachment":[{"href":"https:\/\/nanovea.com\/tr\/wp-json\/wp\/v2\/media?parent=8534"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nanovea.com\/tr\/wp-json\/wp\/v2\/categories?post=8534"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nanovea.com\/tr\/wp-json\/wp\/v2\/tags?post=8534"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}