<\/p>\n
H\u0131zl\u0131 cevap:<\/strong> A practical coating formulation choice starts with the application environment, then checks film formation, adhesion, appearance, and process stability under real production conditions.<\/p>\n <\/p>\n Kaplama solventleri i\u00e7in se\u00e7im ko\u015fullar\u0131 nelerdir?<\/p>\n Buhar faz\u0131 temizli\u011finde, i\u015f par\u00e7as\u0131 solvent buhar\u0131 tabakas\u0131nda y\u0131kan\u0131r, durulan\u0131r ve kurutulur ve i\u015f par\u00e7as\u0131 ikincil kirlenmeye maruz kalmaz, bu nedenle y\u00fcksek derecede temizlik elde edilebilir. Bununla birlikte, k\u00f6t\u00fc y\u00f6netilirse ve yanl\u0131\u015f \u00e7al\u0131\u015ft\u0131r\u0131l\u0131rsa, a\u015f\u0131r\u0131 solvent kayb\u0131 sorunu s\u0131kl\u0131kla ortaya \u00e7\u0131kar ve kullan\u0131m maliyetini art\u0131r\u0131r. A\u015fa\u011f\u0131da, solvent kayb\u0131n\u0131n \u00e7ok fazla olmas\u0131n\u0131n (\u00f6zellikle d\u00fc\u015f\u00fck kaynama noktal\u0131 solventler) nedenlerine ili\u015fkin baz\u0131 analizler yap\u0131lm\u0131\u015f ve bir dizi \u00e7\u00f6z\u00fcm \u00f6nerilmi\u015ftir <\/p>\n Geleneksel kaplama i\u015flerinde, teknik al\u0131c\u0131lar genellikle \u00f6nce film performans hedefi belirleyerek ve ard\u0131ndan reolojiyi, alt tabaka uyumlulu\u011funu, katk\u0131 maddelerini ve uzun vadeli dayan\u0131kl\u0131l\u0131\u011f\u0131 izole edilmi\u015f ince ayarlar yerine tek bir sistem olarak inceleyerek en h\u0131zl\u0131 \u015fekilde ilerlerler.<\/p>\n \u0130yi ba\u015flang\u0131\u00e7 \u200b\u200bg\u00f6r\u00fcn\u00fcm\u00fcne sahip bir kaplama neden daha sonra ba\u015far\u0131s\u0131z olabilir?<\/strong> Tam form\u00fcl d\u0131\u015f\u0131nda kaplama katk\u0131 maddeleri tek tek mi se\u00e7ilmeli?<\/strong> <\/p>","protected":false},"excerpt":{"rendered":" Vapor phase cleaning, the workpiece is washed, rinsed and dried in the solvent vapor layer, and the workpiece is not subject to secondary contamination, so a high degree of cleanliness<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[151],"tags":[],"class_list":["post-6240","post","type-post","status-publish","format-standard","hentry","category-pharmaceutical-intermediates"],"yoast_head":"\n
\n(1) \u00e7ama\u015f\u0131r makinesinin konumu d\u00fczg\u00fcn yerle\u015ftirilmemi\u015f, g\u00fc\u00e7l\u00fc hava konveksiyonu var, bu da a\u015f\u0131r\u0131 solvent buharla\u015fmas\u0131na neden oluyor
\n\u00c7\u00f6z\u00fcm: Temizleme makinesinin kap\u0131, pencere ve n\u00fcfuz eden r\u00fczgar\u0131n oldu\u011fu di\u011fer yerlerin yan\u0131 s\u0131ra elektrikli fan, klima deliklerine yerle\u015ftirilmesinden ka\u00e7\u0131n\u0131lmal\u0131d\u0131r.
\n(2) Temizleyicinin \u00fcst serbest alan\u0131nda yetersiz bo\u015fluk (buhar y\u00fczeyinden tank\u0131n \u00fcst\u00fcne kadar olan mesafe) ve solvent buharlar\u0131 \u00e7evredeki hava ak\u0131\u015f\u0131ndan etkilenir ve ka\u00e7ar.
\n\u00c7\u00f6z\u00fcm a\u015fa\u011f\u0131daki gibidir:
\n\u2460 Bu bir tank yap\u0131s\u0131 tasar\u0131m sorunlar\u0131d\u0131r, tank tasar\u0131m\u0131, buhar y\u00fczeyine tank mesafesinin \u00fcst\u00fcne dikkat edilmeli ve tank oran\u0131n\u0131n geni\u015fli\u011fi 75%'den b\u00fcy\u00fck olmal\u0131d\u0131r, d\u00fc\u015f\u00fck kaynama noktal\u0131, u\u00e7ucu \u00e7\u00f6z\u00fcc\u00fcler ve daha pahal\u0131 HFC-4310 \u00e7\u00f6z\u00fcc\u00fc kullan\u0131m\u0131, oran 1.2 ~ 2.0'a y\u00fckseltilmelidir; buhar y\u00fczeyinin konumu, yo\u011fu\u015fma bobininin ortas\u0131ndan veya yo\u011fu\u015fma bobininin konumunun biraz alt\u0131nda olabilir.
\n\u2461 ayr\u0131ca \u00e7ift yo\u011fu\u015fma t\u00fcp\u00fc, \u00e7ift yo\u011fu\u015fma s\u0131cakl\u0131\u011f\u0131, -29OC'de \u00fcst yo\u011fu\u015fma t\u00fcp\u00fc s\u0131cakl\u0131k kontrol\u00fc kullan\u0131labilir, alt \u00e7al\u0131\u015fma yo\u011fu\u015fma bobini s\u0131cakl\u0131\u011f\u0131 yakla\u015f\u0131k 4 OC'de kontrol edilebilir.
\n(3) Temizleme tank\u0131n\u0131n geni\u015fli\u011fi \u00e7ok geni\u015f olmamal\u0131d\u0131r.
\n(3) Buhar y\u00fczeyi \u00e7ok y\u00fcksektir, yo\u011fu\u015fma kapasitesi yetersizdir, b\u00f6ylece \u00e7ok fazla solvent buhar\u0131 ka\u00e7ar.
\n\u00c7\u00f6z\u00fcm a\u015fa\u011f\u0131daki gibidir:
\n\u2460 so\u011futma sisteminin d\u00fczg\u00fcn \u00e7al\u0131\u015f\u0131p \u00e7al\u0131\u015fmad\u0131\u011f\u0131n\u0131 kontrol edin, sorunlar\u0131 zaman\u0131nda giderin.
\n\u2461 su so\u011futma gibi, \u00e7\u0131k\u0131\u015ftaki so\u011futma suyunun s\u0131cakl\u0131\u011f\u0131n\u0131 kontrol etmelidir, \u00e7\u00f6z\u00fcc\u00fc aras\u0131nda 45 ila 50 OC kaynama noktas\u0131, drenajdaki su s\u0131cakl\u0131\u011f\u0131 21 OC'den fazla olmamal\u0131d\u0131r; \u00e7\u00f6z\u00fcc\u00fcn\u00fcn alt\u0131nda 45 OC kaynama noktas\u0131, drenajdaki su s\u0131cakl\u0131\u011f\u0131 16 OC'den fazla olmamal\u0131d\u0131r.
\n(4) buhar y\u00fczeyi kontrol d\u0131\u015f\u0131d\u0131r, \u00e7ok say\u0131da \u00e7\u00f6z\u00fcc\u00fc buhar\u0131 ka\u00e7ar
\n\u00c7\u00f6z\u00fcm a\u015fa\u011f\u0131daki gibidir:
\n\u2460 normal \u00e7al\u0131\u015fmada, buhar y\u00fczeyi yo\u011fu\u015fma bobininin ortas\u0131nda veya biraz alt\u0131nda kontrol edilmelidir, buzdolab\u0131n\u0131n buhar s\u0131cakl\u0131\u011f\u0131 ayarlanarak veya so\u011futma suyunun s\u0131cakl\u0131\u011f\u0131 ve ak\u0131\u015f\u0131 ayarlanarak kontrol edilebilir.
\n\u2461 ekipman s\u0131cakl\u0131k koruma cihaz\u0131n\u0131 kontrol edin, buhar y\u00fczeyi \u00e7ok y\u00fcksek oldu\u011funda (so\u011futma sistemi ar\u0131zas\u0131 gibi), g\u00fc\u00e7 kayna\u011f\u0131n\u0131 otomatik olarak kesebilmeli, \u0131s\u0131tmay\u0131 durdurabilmelidir.
\n(5) i\u015f par\u00e7alar\u0131n\u0131n yanl\u0131\u015f yerle\u015ftirilmesi, i\u015f par\u00e7as\u0131 d\u0131\u015far\u0131dayken \u00e7\u00f6z\u00fcc\u00fcler
\n\u00c7\u00f6z\u00fcm: i\u015f par\u00e7as\u0131 temizli\u011fi, i\u00e7b\u00fckeyi a\u015fa\u011f\u0131 yapmal\u0131d\u0131r, b\u00f6ylece \u00e7\u00f6z\u00fcc\u00fc i\u00e7b\u00fckey birikimde de\u011fil, d\u0131\u015far\u0131 ak\u0131\u015f\u0131 en \u00fcst d\u00fczeye \u00e7\u0131karabilir.
\n(6) tanktaki i\u015f par\u00e7as\u0131 \u00e7ok h\u0131zl\u0131 hareket ediyor, b\u00f6ylece solvent buhar\u0131 ka\u00e7\u0131yor
\n\u00c7\u00f6z\u00fcm: Temizleme tank\u0131ndaki i\u015f par\u00e7as\u0131 yukar\u0131 ve a\u015fa\u011f\u0131 veya sola ve sa\u011fa hareket eder, h\u0131z \u00e7ok h\u0131zl\u0131 olamaz, buhar tabakas\u0131n\u0131n stabilitesini korumal\u0131d\u0131r, i\u015f par\u00e7as\u0131 hareketinin genel h\u0131z\u0131 50 mm \/ s'den az olmal\u0131d\u0131r.
\n(7) Buhar tabakas\u0131n\u0131n y\u00fcksekli\u011fi yetersizdir veya kurutma s\u00fcresi yetersizdir, b\u00f6ylece \u00e7\u00f6z\u00fcc\u00fc i\u015f par\u00e7as\u0131 taraf\u0131ndan d\u0131\u015far\u0131 \u00e7\u0131kar\u0131l\u0131r.
\n\u00c7\u00f6z\u00fcmler a\u015fa\u011f\u0131daki gibidir:
\n\u2460 buhar tabakas\u0131, i\u015f par\u00e7as\u0131n\u0131 oluk g\u00f6vdesi hareketinde yapacak kadar y\u00fcksek olmal\u0131d\u0131r, i\u015f par\u00e7as\u0131 buhar tabakas\u0131n\u0131 ortaya \u00e7\u0131karmaz.
\n\u2461 \u0130\u015f par\u00e7as\u0131n\u0131n buhar tabakas\u0131nda durulanma s\u00fcresi, i\u015f par\u00e7as\u0131n\u0131n buhar y\u00fczeyinden ayr\u0131lmas\u0131ndan \u00f6nce solvent damlamadan y\u00fczeyde art\u0131k yo\u011fu\u015fma olmamal\u0131, dondurarak kurutma alan\u0131nda ve daha sonra iyice kurumas\u0131 i\u00e7in k\u0131sa bir s\u00fcre kalmal\u0131d\u0131r.
\n(8) yanl\u0131\u015f sprey durulama, solvent s\u0131\u00e7rama kayb\u0131n\u0131 art\u0131r\u0131r.
\n\u00c7\u00f6z\u00fcmler a\u015fa\u011f\u0131daki gibidir:
\n\u2460 sprey temizleme, tabancan\u0131n konumu buhar y\u00fczeyinden 150 mm daha a\u015fa\u011f\u0131da olmal\u0131 ve a\u015fa\u011f\u0131ya do\u011fru p\u00fcsk\u00fcrt\u00fclmelidir.
\n\u2461 p\u00fcsk\u00fcrtme bas\u0131nc\u0131 \u00e7ok y\u00fcksek olmamal\u0131d\u0131r, genellikle 0,1MPa'dan az olmal\u0131d\u0131r; s\u0131v\u0131 ak\u0131\u015f\u0131n\u0131 p\u00fcsk\u00fcrt\u00fcn, \u00e7ok telli ince \u00e7izgi ak\u0131\u015f du\u015fu daha iyidir, p\u00fcsk\u00fcrtme s\u0131\u00e7rama kayb\u0131n\u0131 art\u0131racakt\u0131r.
\n(3) Kararl\u0131 bir buhar y\u00fczeyinin olu\u015fmamas\u0131 durumunda sprey y\u0131kama yap\u0131lmaz.
\n(9) Solvent kayb\u0131n\u0131n buharla\u015fmas\u0131n\u0131 art\u0131ran yanl\u0131\u015f \u00e7al\u0131\u015fma prosed\u00fcrleri
\n\u00c7\u00f6z\u00fcm a\u015fa\u011f\u0131daki gibidir:
\n\u2460 Is\u0131tma i\u015fleminden \u00f6nce temizleme tank\u0131 so\u011futma suyuna ba\u011flanmal\u0131 veya \u00f6nce so\u011futucu a\u00e7\u0131lmal\u0131d\u0131r.
\n\u2461 i\u015f tamamland\u0131\u011f\u0131nda, \u00f6nce \u0131s\u0131t\u0131c\u0131y\u0131 kapat\u0131n, ancak so\u011futma suyu durmaz veya so\u011futucu buhar tabakas\u0131 tamamen kaybolana, \u00e7\u00f6z\u00fcc\u00fc s\u0131cakl\u0131\u011f\u0131 oda s\u0131cakl\u0131\u011f\u0131na yak\u0131n olana kadar durmaz ve ard\u0131ndan suyu durdurun veya kapa\u011f\u0131 kapat\u0131n.
\n\u2462 Temizleme makinesindeki \u00e7\u00f6z\u00fcc\u00fc s\u0131cakl\u0131\u011f\u0131n\u0131n d\u00fc\u015f\u00fck s\u0131cakl\u0131k kontrol\u00fc, kay\u0131p oldu\u011funda \u00e7al\u0131\u015fmay\u0131 durdurmak i\u00e7in \u00e7\u00f6z\u00fcc\u00fclerin buharla\u015fmas\u0131n\u0131 azaltmak amac\u0131yla \u00e7\u00f6z\u00fcc\u00fc s\u0131cakl\u0131\u011f\u0131n\u0131 \u00e7evredeki ortam s\u0131cakl\u0131\u011f\u0131ndan daha d\u00fc\u015f\u00fck tutun.
\n(10) Solvent kayb\u0131na neden olan yanl\u0131\u015f kullan\u0131m ve depolama
\n\u00c7\u00f6z\u00fcm a\u015fa\u011f\u0131daki gibidir:
\n\u2460 \u00e7ama\u015f\u0131r makinesi kullan\u0131lmad\u0131\u011f\u0131nda, \u00fcst\u00fc kapat\u0131lmal\u0131 ve m\u00fch\u00fcrlenmelidir;
\n\u2461 uzun s\u00fcre kullan\u0131lmad\u0131\u011f\u0131nda, \u00e7\u00f6z\u00fcc\u00fc serbest b\u0131rak\u0131lmal\u0131, kapal\u0131 bir varil i\u00e7inde saklanmal\u0131d\u0131r;
\n\u2462 Temizlik makinesinin bak\u0131m\u0131ndan sorumlu bir ki\u015fi olmal\u0131, boru ba\u011flant\u0131lar\u0131, pompalar, tahliye vanalar\u0131, filtreler vb. s\u0131z\u0131nt\u0131lara kar\u015f\u0131 s\u0131k s\u0131k kontrol edilmelidir.<\/p>\nHow buyers usually evaluate coating and paint topics<\/h2>\n
\n
\u00d6nerilen \u00fcr\u00fcn referanslar\u0131<\/h3>\n
\n
Al\u0131c\u0131lar ve form\u00fclat\u00f6rler i\u00e7in SSS<\/h3>\n
Bir\u00e7ok hata tam k\u00fcrlenme, depolama veya hizmet maruziyetinden sonra, yap\u0131\u015fma, esneklik veya hava ko\u015fullar\u0131na dayan\u0131kl\u0131l\u0131\u011f\u0131n s\u0131n\u0131rlay\u0131c\u0131 fakt\u00f6r haline geldi\u011fi zaman ortaya \u00e7\u0131kt\u0131\u011f\u0131 i\u00e7in.<\/p>\n
Re\u00e7ine se\u00e7imi, pigmentler ve di\u011fer katk\u0131 maddeleri sonucu de\u011fi\u015ftirebilece\u011fi i\u00e7in genellikle ger\u00e7ek form\u00fclasyonda taranmas\u0131 daha g\u00fcvenlidir.<\/p>\n