{"id":7593,"date":"2020-01-19T18:16:06","date_gmt":"2020-01-19T18:16:06","guid":{"rendered":"https:\/\/nanovea.com\/?p=7593"},"modified":"2023-11-13T22:34:06","modified_gmt":"2023-11-13T22:34:06","slug":"asiri-dusuk-hizlarda-surtunme-degerlendirmesi","status":"publish","type":"post","link":"https:\/\/nanovea.com\/tr\/asiri-dusuk-hizlarda-surtunme-degerlendirmesi\/","title":{"rendered":"A\u015f\u0131r\u0131 D\u00fc\u015f\u00fck H\u0131zlarda S\u00fcrt\u00fcnme De\u011ferlendirmesi"},"content":{"rendered":"
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D\u00fc\u015f\u00fck H\u0131zlarda S\u00fcrt\u00fcnme De\u011ferlendirmesinin \u00d6nemi<\/p>\n

S\u00fcrt\u00fcnme, birbirlerine kar\u015f\u0131 kayan kat\u0131 y\u00fczeylerin g\u00f6receli hareketine direnen kuvvettir. Bu iki temas y\u00fczeyinin g\u00f6receli hareketi ger\u00e7ekle\u015fti\u011finde, aray\u00fczdeki s\u00fcrt\u00fcnme kinetik enerjiyi \u0131s\u0131ya d\u00f6n\u00fc\u015ft\u00fcr\u00fcr. B\u00f6yle bir s\u00fcre\u00e7 ayn\u0131 zamanda malzemenin a\u015f\u0131nmas\u0131na ve dolay\u0131s\u0131yla kullan\u0131mdaki par\u00e7alar\u0131n performans\u0131n\u0131n d\u00fc\u015fmesine yol a\u00e7abilir.
B\u00fcy\u00fck esneme oran\u0131, y\u00fcksek esneklik, m\u00fckemmel su ge\u00e7irmezlik \u00f6zellikleri ve a\u015f\u0131nma direnci ile kau\u00e7uk, otomobil lastikleri, cam silecek lastikleri, ayakkab\u0131 tabanlar\u0131 ve di\u011ferleri gibi s\u00fcrt\u00fcnmenin \u00f6nemli bir rol oynad\u0131\u011f\u0131 \u00e7e\u015fitli uygulamalarda ve \u00fcr\u00fcnlerde yayg\u0131n olarak kullan\u0131lmaktad\u0131r. Bu uygulamalar\u0131n niteli\u011fine ve gereksinimine ba\u011fl\u0131 olarak, farkl\u0131 malzemelere kar\u015f\u0131 y\u00fcksek veya d\u00fc\u015f\u00fck s\u00fcrt\u00fcnme istenir. Sonu\u00e7 olarak, kau\u00e7u\u011fun \u00e7e\u015fitli y\u00fczeylere kar\u015f\u0131 s\u00fcrt\u00fcnmesinin kontroll\u00fc ve g\u00fcvenilir bir \u015fekilde \u00f6l\u00e7\u00fclmesi kritik hale gelir.<\/p>\n



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\u00d6l\u00e7\u00fcm Hedefi<\/p>\n

Kau\u00e7u\u011fun farkl\u0131 malzemelere kar\u015f\u0131 s\u00fcrt\u00fcnme katsay\u0131s\u0131 (COF), Nanovea kullan\u0131larak kontroll\u00fc ve izlenen bir \u015fekilde \u00f6l\u00e7\u00fcl\u00fcr. Tribometre<\/a>. Bu \u00e7al\u0131\u015fmada, Nanovea Tribometrenin farkl\u0131 malzemelerin COF'sini son derece d\u00fc\u015f\u00fck h\u0131zlarda \u00f6l\u00e7me kapasitesini sergilemek istiyoruz.<\/p>\n


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Sonu\u00e7lar ve Tart\u0131\u015fma<\/p>\n

Kau\u00e7uk bilyelerin (6 mm \u00e7ap, RubberMill) \u00fc\u00e7 malzeme (Paslanmaz \u00e7elik SS 316, Cu 110 ve iste\u011fe ba\u011fl\u0131 Akrilik) \u00fczerindeki s\u00fcrt\u00fcnme katsay\u0131s\u0131 (COF) Nanovea Tribometre ile de\u011ferlendirilmi\u015ftir. Test edilen metal numuneler \u00f6l\u00e7\u00fcmden \u00f6nce ayna benzeri bir y\u00fczey fini\u015fine kadar mekanik olarak parlat\u0131lm\u0131\u015ft\u0131r. Uygulanan normal y\u00fck alt\u0131nda kau\u00e7uk bilyenin hafif deformasyonu, bir alan temas\u0131 olu\u015fturmu\u015f ve bu da asperitelerin veya numune y\u00fczey kaplamas\u0131n\u0131n homojen olmamas\u0131n\u0131n COF \u00f6l\u00e7\u00fcmlerine etkisini azaltmaya yard\u0131mc\u0131 olmu\u015ftur. Test parametreleri Tablo 1'de \u00f6zetlenmi\u015ftir.<\/p>\n


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D\u00f6rt farkl\u0131 h\u0131zda farkl\u0131 malzemelere kar\u015f\u0131 bir lastik topun COF'si \u015eekil 2'de g\u00f6sterilmi\u015ftir. 2'de g\u00f6sterilmi\u015f ve yaz\u0131l\u0131m taraf\u0131ndan otomatik olarak hesaplanan ortalama COF'ler \u015eekil 3'te \u00f6zetlenmi\u015f ve kar\u015f\u0131la\u015ft\u0131r\u0131lm\u0131\u015ft\u0131r. D\u00f6nme h\u0131z\u0131 0,01 rpm gibi \u00e7ok d\u00fc\u015f\u00fck bir de\u011ferden 5 rpm'ye y\u00fckseldik\u00e7e metal numunelerin (SS 316 ve Cu 110) COF'lar\u0131n\u0131n \u00f6nemli \u00f6l\u00e7\u00fcde artmas\u0131 ilgin\u00e7tir - kau\u00e7uk\/SS 316 \u00e7iftinin COF de\u011feri 0,29'dan 0,8'e ve kau\u00e7uk\/Cu 110 \u00e7ifti i\u00e7in 0,65'ten 1,1'e y\u00fckselmektedir. Bu bulgu, \u00e7e\u015fitli laboratuvarlardan bildirilen sonu\u00e7larla uyumludur. Grosch taraf\u0131ndan \u00f6nerildi\u011fi gibi4<\/sup> Kau\u00e7u\u011fun s\u00fcrt\u00fcnmesi temel olarak iki mekanizma taraf\u0131ndan belirlenir: (1) kau\u00e7uk ve di\u011fer malzeme aras\u0131ndaki yap\u0131\u015fma ve (2) y\u00fczey asperitelerinin neden oldu\u011fu kau\u00e7u\u011fun deformasyonundan kaynaklanan enerji kay\u0131plar\u0131. Schallamach5<\/sup> Yumu\u015fak kau\u00e7uk k\u00fcreler ve sert bir y\u00fczey aras\u0131ndaki aray\u00fcz boyunca kau\u00e7u\u011fun kar\u015f\u0131 malzemeden ayr\u0131lma dalgalar\u0131n\u0131 g\u00f6zlemlemi\u015ftir. Kau\u00e7u\u011fun alt tabaka y\u00fczeyinden s\u0131yr\u0131lma kuvveti ve ayr\u0131lma dalgalar\u0131n\u0131n h\u0131z\u0131, test s\u0131ras\u0131nda farkl\u0131 h\u0131zlardaki farkl\u0131 s\u00fcrt\u00fcnmeyi a\u00e7\u0131klayabilir.<\/p>\n

Buna kar\u015f\u0131l\u0131k, kau\u00e7uk\/akrilik malzeme \u00e7ifti farkl\u0131 d\u00f6nme h\u0131zlar\u0131nda y\u00fcksek COF sergilemektedir. D\u00f6nme h\u0131z\u0131 0.01 rpm'den 5 rpm'ye y\u00fckseldik\u00e7e COF de\u011feri ~ 1.02'den ~ 1.09'a hafif\u00e7e artmaktad\u0131r. Bu kadar y\u00fcksek COF muhtemelen testler s\u0131ras\u0131nda olu\u015fan temas y\u00fczeyindeki daha g\u00fc\u00e7l\u00fc yerel kimyasal ba\u011fa ba\u011flanmaktad\u0131r.<\/p>\n\n



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Sonu\u00e7<\/p>\n


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Bu \u00e7al\u0131\u015fmada, son derece d\u00fc\u015f\u00fck h\u0131zlarda, kau\u00e7u\u011fun kendine \u00f6zg\u00fc bir s\u00fcrt\u00fcnme davran\u0131\u015f\u0131 sergiledi\u011fini g\u00f6steriyoruz - sert bir y\u00fczeye kar\u015f\u0131 s\u00fcrt\u00fcnmesi, g\u00f6receli hareketin artan h\u0131z\u0131yla artar. Kau\u00e7uk, farkl\u0131 malzemeler \u00fczerinde kayarken farkl\u0131 s\u00fcrt\u00fcnme g\u00f6sterir. Nanovea Tribometer, malzemelerin s\u00fcrt\u00fcnme \u00f6zelliklerini farkl\u0131 h\u0131zlarda kontroll\u00fc ve izlenebilir bir \u015fekilde de\u011ferlendirebilir ve kullan\u0131c\u0131lar\u0131n malzemelerin s\u00fcrt\u00fcnme mekanizmas\u0131na ili\u015fkin temel anlay\u0131\u015f\u0131 geli\u015ftirmelerine ve hedeflenen tribolojik m\u00fchendislik uygulamalar\u0131 i\u00e7in en iyi malzeme \u00e7iftini se\u00e7melerine olanak tan\u0131r.<\/p>\n

Nanovea Tribometer, ISO ve ASTM uyumlu rotatif ve lineer modlar\u0131 kullanarak hassas ve tekrarlanabilir a\u015f\u0131nma ve s\u00fcrt\u00fcnme testleri sunar ve iste\u011fe ba\u011fl\u0131 y\u00fcksek s\u0131cakl\u0131kta a\u015f\u0131nma, ya\u011flama ve tribo-korozyon mod\u00fclleri \u00f6nceden entegre edilmi\u015f tek bir sistemde mevcuttur. D\u00f6nme a\u015famas\u0131n\u0131 0,01 rpm'ye kadar son derece d\u00fc\u015f\u00fck h\u0131zlarda kontrol edebilir ve s\u00fcrt\u00fcnmenin geli\u015fimini yerinde izleyebilir. Nanovea'n\u0131n e\u015fsiz \u00fcr\u00fcn yelpazesi, ince veya kal\u0131n, yumu\u015fak veya sert kaplamalar\u0131n, filmlerin ve alt tabakalar\u0131n t\u00fcm tribolojik \u00f6zelliklerini belirlemek 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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