{"id":8344,"date":"2020-05-11T05:07:45","date_gmt":"2020-05-11T05:07:45","guid":{"rendered":"https:\/\/nanovea.com\/?p=8344"},"modified":"2023-11-13T22:17:52","modified_gmt":"2023-11-13T22:17:52","slug":"blok-halka-uzerinde-kayma-asinma-degerlendirmesi","status":"publish","type":"post","link":"https:\/\/nanovea.com\/tr\/blok-halka-uzerinde-kayma-asinma-degerlendirmesi\/","title":{"rendered":"Halka \u00dczerinde Blok A\u015f\u0131nma Testi"},"content":{"rendered":"
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HALKA \u00dcZERI\u0307NDE BLOK A\u015eINMASI DE\u011eERLENDI\u0307RMESI\u0307NI\u0307N \u00d6NEMI\u0307<\/em>
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Kayma a\u015f\u0131nmas\u0131, iki malzemenin y\u00fck alt\u0131nda temas alan\u0131nda birbirlerine kar\u015f\u0131 kaymas\u0131 sonucu olu\u015fan a\u015famal\u0131 malzeme kayb\u0131d\u0131r. Otomotiv, havac\u0131l\u0131k, petrol ve gaz ve di\u011ferleri de dahil olmak \u00fczere makine ve motorlar\u0131n \u00e7al\u0131\u015ft\u0131\u011f\u0131 \u00e7ok \u00e7e\u015fitli end\u00fcstrilerde ka\u00e7\u0131n\u0131lmaz olarak meydana gelir. Bu t\u00fcr bir kayma hareketi y\u00fczeyde ciddi mekanik a\u015f\u0131nmaya ve malzeme transferine neden olur, bu da \u00fcretim verimlili\u011finin, makine performans\u0131n\u0131n d\u00fc\u015fmesine ve hatta makinenin hasar g\u00f6rmesine yol a\u00e7abilir.<\/div>
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Kayma a\u015f\u0131nmas\u0131 genellikle temas y\u00fczeyinde meydana gelen yap\u0131\u015fma a\u015f\u0131nmas\u0131, iki cisim a\u015f\u0131nmas\u0131, \u00fc\u00e7 cisim a\u015f\u0131nmas\u0131 ve yorulma a\u015f\u0131nmas\u0131 gibi karma\u015f\u0131k a\u015f\u0131nma mekanizmalar\u0131n\u0131 i\u00e7erir. Malzemelerin a\u015f\u0131nma davran\u0131\u015f\u0131 normal y\u00fckleme, h\u0131z, korozyon ve ya\u011flama gibi \u00e7al\u0131\u015fma ortam\u0131ndan \u00f6nemli \u00f6l\u00e7\u00fcde etkilenir. \u00c7ok y\u00f6nl\u00fc tribometre <\/a>Farkl\u0131 ger\u00e7ek\u00e7i \u00e7al\u0131\u015fma ko\u015fullar\u0131n\u0131 sim\u00fcle edebilen a\u015f\u0131nma de\u011ferlendirmesi i\u00e7in ideal olacakt\u0131r.
Halka \u00dczerinde Blok (ASTM G77) testi, malzemelerin farkl\u0131 sim\u00fcle edilmi\u015f ko\u015fullardaki kayma a\u015f\u0131nma davran\u0131\u015flar\u0131n\u0131 de\u011ferlendiren, belirli tribolojik uygulamalar i\u00e7in malzeme \u00e7iftlerinin g\u00fcvenilir \u015fekilde derecelendirilmesine olanak tan\u0131yan, yayg\u0131n olarak kullan\u0131lan bir tekniktir.<\/div>
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\u00d6L\u00c7\u00dcM HEDEFI<\/em>
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Bu uygulamada, Nanovea Mekanik Test Cihaz\u0131 paslanmaz \u00e7elik SS304 ve al\u00fcminyum Al6061 metal ala\u015f\u0131m numunelerinin YS ve UTS de\u011ferlerini \u00f6l\u00e7mektedir. Numuneler, Nanovea'n\u0131n indentasyon y\u00f6ntemlerinin g\u00fcvenilirli\u011fini g\u00f6steren yayg\u0131n olarak bilinen YS ve UTS de\u011ferleri i\u00e7in se\u00e7ilmi\u015ftir.<\/p>

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Bir H-30 blo\u011funun bir S-10 halkas\u0131 \u00fczerindeki kayma a\u015f\u0131nma davran\u0131\u015f\u0131, Block-on-Ring mod\u00fcl\u00fc kullan\u0131larak Nanovea'n\u0131n tribometresi taraf\u0131ndan de\u011ferlendirildi. H-30 blo\u011fu 30HRC sertlikte 01 tak\u0131m \u00e7eli\u011finden yap\u0131l\u0131rken, S-10 halkas\u0131 58 ila 63 HRC y\u00fczey sertli\u011finde ve ~34,98 mm halka \u00e7ap\u0131nda 4620 tipi \u00e7elikten yap\u0131lm\u0131\u015ft\u0131r. A\u015f\u0131nma davran\u0131\u015f\u0131 \u00fczerindeki etkiyi ara\u015ft\u0131rmak i\u00e7in kuru ve ya\u011flanm\u0131\u015f ortamlarda Block-on-Ring testleri yap\u0131ld\u0131. USP a\u011f\u0131r mineral ya\u011f\u0131nda ya\u011flama testleri yap\u0131ld\u0131. A\u015f\u0131nma izi Nanovea kullan\u0131larak incelendi 3D temass\u0131z profilometre<\/a>. Test parametreleri Tablo 1'de \u00f6zetlenmi\u015ftir. A\u015f\u0131nma oran\u0131 (K), K=V\/(Fxs) form\u00fcl\u00fc kullan\u0131larak de\u011ferlendirilmi\u015ftir; burada V a\u015f\u0131nm\u0131\u015f hacim, F normal y\u00fck, s ise kayma mesafesidir.<\/p>

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SONU\u00c7LAR VE TARTI\u015eMA<\/em>
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\u015eekil 2 kuru ve ya\u011flanm\u0131\u015f ortamlarda Halka \u00dczerinde Blok testlerinin s\u00fcrt\u00fcnme katsay\u0131s\u0131n\u0131 (COF) kar\u015f\u0131la\u015ft\u0131rmaktad\u0131r. Blok, kuru bir ortamda, ya\u011flanm\u0131\u015f bir ortama g\u00f6re \u00f6nemli \u00f6l\u00e7\u00fcde daha fazla s\u00fcrt\u00fcnmeye sahiptir. COF
ilk 50 devirdeki al\u0131\u015ft\u0131rma periyodu s\u0131ras\u0131nda dalgalan\u0131r ve 200 devir a\u015f\u0131nma testinin geri kalan\u0131 i\u00e7in ~0,8'lik sabit bir COF'ye ula\u015f\u0131r. Kar\u015f\u0131la\u015ft\u0131r\u0131ld\u0131\u011f\u0131nda, USP a\u011f\u0131r mineral ya\u011flamada ger\u00e7ekle\u015ftirilen Block-on-Ring testi, 500.000 devir a\u015f\u0131nma testi boyunca 0,09'luk sabit d\u00fc\u015f\u00fck COF sergiliyor. Ya\u011flay\u0131c\u0131, y\u00fczeyler aras\u0131ndaki COF'yi ~90 kat kadar \u00f6nemli \u00f6l\u00e7\u00fcde azalt\u0131r.<\/span><\/p>

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\u015eekil 3 ve 4, kuru ve ya\u011flanm\u0131\u015f a\u015f\u0131nma testlerinden sonra bloklardaki a\u015f\u0131nma izlerinin optik g\u00f6r\u00fcnt\u00fclerini ve kesit 2D profillerini g\u00f6stermektedir. A\u015f\u0131nma izi hacimleri ve a\u015f\u0131nma oranlar\u0131 Tablo 2'de listelenmi\u015ftir. Kuru a\u015f\u0131nma testinden sonra 200 devir i\u00e7in 72 rpm'lik daha d\u00fc\u015f\u00fck bir d\u00f6nme h\u0131z\u0131nda \u00e7elik blok 9,45 mm\u02d9'lik b\u00fcy\u00fck bir a\u015f\u0131nma izi hacmi sergilemektedir. Buna kar\u015f\u0131l\u0131k, mineral ya\u011flay\u0131c\u0131da 500.000 devir i\u00e7in 197 rpm'lik daha y\u00fcksek bir h\u0131zda ger\u00e7ekle\u015ftirilen a\u015f\u0131nma testi, 0,03 mm\u02d9'lik \u00f6nemli \u00f6l\u00e7\u00fcde daha k\u00fc\u00e7\u00fck bir a\u015f\u0131nma izi hacmi olu\u015fturur.<\/p>

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\u015eekil 3'teki g\u00f6r\u00fcnt\u00fcler, ya\u011flanm\u0131\u015f a\u015f\u0131nma testindeki hafif a\u015f\u0131nmaya k\u0131yasla kuru ko\u015fullardaki testler s\u0131ras\u0131nda ciddi a\u015f\u0131nma meydana geldi\u011fini g\u00f6stermektedir. Kuru a\u015f\u0131nma testi s\u0131ras\u0131nda olu\u015fan y\u00fcksek \u0131s\u0131 ve yo\u011fun titre\u015fimler metalik d\u00f6k\u00fcnt\u00fclerin oksitlenmesini te\u015fvik ederek ciddi \u00fc\u00e7 cisim a\u015f\u0131nmas\u0131na neden olur. Ya\u011fl\u0131 testte mineral ya\u011f s\u00fcrt\u00fcnmeyi azalt\u0131r ve temas y\u00fczeyini so\u011futur, ayr\u0131ca a\u015f\u0131nma s\u0131ras\u0131nda olu\u015fan a\u015f\u0131nd\u0131r\u0131c\u0131 kal\u0131nt\u0131lar\u0131 uzakla\u015ft\u0131r\u0131r. Bu da a\u015f\u0131nma oran\u0131n\u0131n ~8\u00d710\u02c6 kat azalmas\u0131na yol a\u00e7ar. Farkl\u0131 ortamlarda a\u015f\u0131nma direncindeki bu \u00f6nemli farkl\u0131l\u0131k, ger\u00e7ek\u00e7i hizmet ko\u015fullar\u0131nda uygun kayma a\u015f\u0131nmas\u0131 sim\u00fclasyonunun \u00f6nemini g\u00f6stermektedir.<\/span><\/p>

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Test ko\u015fullar\u0131nda k\u00fc\u00e7\u00fck de\u011fi\u015fiklikler yap\u0131ld\u0131\u011f\u0131nda a\u015f\u0131nma davran\u0131\u015f\u0131 b\u00fcy\u00fck \u00f6l\u00e7\u00fcde de\u011fi\u015febilir. Nanovea'n\u0131n tribometresinin \u00e7ok y\u00f6nl\u00fcl\u00fc\u011f\u00fc, y\u00fcksek s\u0131cakl\u0131k, ya\u011flama ve tribokorozyon ko\u015fullar\u0131nda a\u015f\u0131nma \u00f6l\u00e7\u00fcm\u00fcne olanak sa\u011flar. Geli\u015fmi\u015f motorun hassas h\u0131z ve konum kontrol\u00fc, a\u015f\u0131nma testlerinin 0,001 ila 5000 rpm aras\u0131nda de\u011fi\u015fen h\u0131zlarda ger\u00e7ekle\u015ftirilmesini sa\u011flayarak, farkl\u0131 tribolojik ko\u015fullarda a\u015f\u0131nmay\u0131 ara\u015ft\u0131rmak i\u00e7in ara\u015ft\u0131rma\/test laboratuvarlar\u0131 i\u00e7in ideal bir ara\u00e7 haline getirir.<\/span><\/p>

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Numunelerin y\u00fczey durumu Nanovea'n\u0131n temass\u0131z optik pro\u00fflometresi ile incelenmi\u015ftir. \u015eekil 5, a\u015f\u0131nma testlerinden sonra halkalar\u0131n y\u00fczey morfolojisini g\u00f6stermektedir. Kayma a\u015f\u0131nma s\u00fcrecinin yaratt\u0131\u011f\u0131 y\u00fczey morfolojisini ve p\u00fcr\u00fczl\u00fcl\u00fc\u011f\u00fc daha iyi g\u00f6stermek i\u00e7in silindir formu \u00e7\u0131kar\u0131lm\u0131\u015ft\u0131r. \u00dc\u00e7 g\u00f6vdeli a\u015f\u0131nma s\u00fcreci nedeniyle 200 devirlik kuru a\u015f\u0131nma testi s\u0131ras\u0131nda \u00f6nemli y\u00fczey p\u00fcr\u00fczlenmesi meydana gelmi\u015ftir. Kuru a\u015f\u0131nma testinden sonra blok ve bilezik s\u0131ras\u0131yla 14,1 ve 18,1 \u00b5m p\u00fcr\u00fczl\u00fcl\u00fck Ra sergilerken, daha y\u00fcksek h\u0131zda uzun s\u00fcreli 500.000 devir ya\u011flanm\u0131\u015f a\u015f\u0131nma testi i\u00e7in bu de\u011ferler 5,7 ve 9,1 \u00b5m'dir. Bu test, piston segman\u0131-silindir temas\u0131n\u0131n uygun \u015fekilde ya\u011flanmas\u0131n\u0131n \u00f6nemini g\u00f6stermektedir. \u015eiddetli a\u015f\u0131nma, ya\u011flama olmadan temas y\u00fczeyine h\u0131zla zarar verir ve servis kalitesinin geri d\u00f6nd\u00fcr\u00fclemez \u015fekilde bozulmas\u0131na ve hatta motorun k\u0131r\u0131lmas\u0131na neden olur.<\/p>

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SONU\u00c7<\/em>
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Bu \u00e7al\u0131\u015fmada, Nanovea'n\u0131n Tribometresinin, ASTM G77 Standard\u0131n\u0131 takip eden Block-on-Ring mod\u00fcl\u00fcn\u00fc kullanarak bir \u00e7elik metal \u00e7iftinin kayma a\u015f\u0131nma davran\u0131\u015f\u0131n\u0131 de\u011ferlendirmek i\u00e7in nas\u0131l kullan\u0131ld\u0131\u011f\u0131n\u0131 g\u00f6steriyoruz. Ya\u011flay\u0131c\u0131, malzeme \u00e7iftinin a\u015f\u0131nma \u00f6zelliklerinde kritik bir rol oynar. Mineral ya\u011f, H-30 blo\u011funun a\u015f\u0131nma oran\u0131n\u0131 ~8\u00d710\u02c6 kat ve COF'yi ~90 kat azalt\u0131r. Nanovea'n\u0131n Tribometresinin \u00e7ok y\u00f6nl\u00fcl\u00fc\u011f\u00fc, onu \u00e7e\u015fitli ya\u011flama, y\u00fcksek s\u0131cakl\u0131k ve tribokorozyon ko\u015fullar\u0131 alt\u0131nda a\u015f\u0131nma davran\u0131\u015f\u0131n\u0131 \u00f6l\u00e7mek i\u00e7in ideal bir ara\u00e7 haline getirir.<\/p>

Nanovea'n\u0131n Tribometresi, \u00f6nceden entegre edilmi\u015f tek bir sistemde iste\u011fe ba\u011fl\u0131 y\u00fcksek s\u0131cakl\u0131kta a\u015f\u0131nma, ya\u011flama ve tribo-korozyon mod\u00fclleri ile ISO ve ASTM uyumlu d\u00f6ner ve do\u011frusal modlar\u0131 kullanarak hassas ve tekrarlanabilir a\u015f\u0131nma ve s\u00fcrt\u00fcnme testleri sunar. Nanovea'n\u0131n e\u015fsiz \u00fcr\u00fcn yelpazesi, ince veya kal\u0131n, yumu\u015fak veya sert kaplamalar\u0131n, filmlerin ve alt katmanlar\u0131n t\u00fcm tribolojik \u00f6zelliklerinin belirlenmesi i\u00e7in ideal bir \u00e7\u00f6z\u00fcmd\u00fcr.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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\u015eIMDI, BA\u015eVURUNUZ HAKKINDA KONU\u015eALIM<\/b><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\tCANLI SOHBET<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"

IMPORTANCE OF BLOCK-ON-RING WEAR EVALUATION Sliding wear is the progressive loss of material that results from two materials sliding against each other at the contact area under load. It occurs inevitably in a wide variety of industries where machines and engines are in operation, including automotive, aerospace, oil & gas and many others. Such sliding […]<\/p>","protected":false},"author":1,"featured_media":11684,"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":[7,374,349,351,353,355,335,336],"tags":[],"class_list":["post-8344","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-application-notes","category-block-on-ring-tribology","category-laboratory-testing","category-profilometry-roughness-finish","category-profilometry-texture-grain","category-profilometry-volume-area","category-profilometry-testing","category-tribology-testing"],"_links":{"self":[{"href":"https:\/\/nanovea.com\/tr\/wp-json\/wp\/v2\/posts\/8344","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\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/nanovea.com\/tr\/wp-json\/wp\/v2\/comments?post=8344"}],"version-history":[{"count":19,"href":"https:\/\/nanovea.com\/tr\/wp-json\/wp\/v2\/posts\/8344\/revisions"}],"predecessor-version":[{"id":23411,"href":"https:\/\/nanovea.com\/tr\/wp-json\/wp\/v2\/posts\/8344\/revisions\/23411"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nanovea.com\/tr\/wp-json\/wp\/v2\/media\/11684"}],"wp:attachment":[{"href":"https:\/\/nanovea.com\/tr\/wp-json\/wp\/v2\/media?parent=8344"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nanovea.com\/tr\/wp-json\/wp\/v2\/categories?post=8344"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nanovea.com\/tr\/wp-json\/wp\/v2\/tags?post=8344"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}