{"id":7706,"date":"2013-12-21T10:48:24","date_gmt":"2013-12-21T08:48:24","guid":{"rendered":"http:\/\/yachtworks.info\/?page_id=7706"},"modified":"2013-12-21T10:48:24","modified_gmt":"2013-12-21T08:48:24","slug":"turkce-kum-raspasi","status":"publish","type":"page","link":"https:\/\/yachtworks.info\/tr\/turkce-kum-raspasi\/","title":{"rendered":"(T\u00fcrk\u00e7e) Kum Raspas\u0131"},"content":{"rendered":"

Bu yaz\u0131da, 20 \u2013 25 m tam boya kadar olan teknelerle ilgili kum raspas\u0131 tecr\u00fcbelerimizden faydaland\u0131k.<\/p>\n

\"LIFT10\"<\/p>\n

Kum raspas\u0131, veya kumlama, (sand blasting = kumlu patlatma) metallerin, ah\u015faplar\u0131n ve plastiklerin y\u00fczeylerini temizleme ve p\u00fcr\u00fczl\u00fc bir str\u00fckt\u00fcr verme tekniklerinden birine verilen add\u0131r. Yan ta\u015flama, motorlu f\u0131r\u00e7a ve benzer y\u00f6ntemlere nazaran \u00e7ok etrafl\u0131 bir te\u015fkilat gerektirir, ama \u00e7ok ba\u015far\u0131l\u0131 ve ba\u015fka metotlarla eri\u015filemeyen sonu\u00e7lar verir.\u00d6zellikle boyanacak metallerde, kum raspas\u0131 \u015f\u00fcphesiz en ba\u015far\u0131l\u0131 y\u00fczey haz\u0131rlama y\u00f6ntemidir ve rakip olabilecek di\u011fer bir y\u00fczey haz\u0131rlama y\u00f6ntemi yoktur.<\/p>\n

Prensibi:<\/strong><\/p>\n

Kum veya \u00e7e\u015fitli di\u011fer projektiller, bas\u0131n\u00e7l\u0131 hava ile Venturi prensibi ile i\u015fleyen bir nozuldan ge\u00e7irilerek y\u00fcksek s\u00fcratle raspalanacak y\u00fczeye p\u00fcsk\u00fcrt\u00fcl\u00fcr. Bu s\u0131rada y\u00fczeydeki boya, pas ve di\u011fer kaplamalar\u0131 s\u00f6ker, mikro kraterciklerle p\u00fcr\u00fczlendirilmi\u015f bir y\u00fczey olu\u015fturur.<\/p>\n

\u00d6\u011feleri:<\/strong><\/p>\n

Projektiller veya raspa cephanesi: \u00dclkemizde en yayg\u0131n malzeme kuarz kumudur. Kuzey y\u00f6relerde, “Podima kumu” ad\u0131 alt\u0131nda Karadeniz kumsallar\u0131ndan toplanan kum kullan\u0131l\u0131r. Kumda tuz bulunmas\u0131, raspalama i\u00e7in zararl\u0131d\u0131r, ayr\u0131ca do\u011fal s\u00fcre\u00e7ler sonucu olu\u015fmu\u015f kumlar\u0131n y\u00fczeylerin nispeten.<\/p>\n

\"IMG_6646\"<\/p>\n

yuvarlanm\u0131\u015f olmas\u0131, raspalama etkisini azalt\u0131r. Buna mukabil, ta\u015f ocaklar\u0131nda “elek\u00fcst\u00fc” kalan 1 \u2013 3 mm ebad\u0131ndaki k\u0131rma kum raspaya son derece uygundur. Y\u00f6remizde \u00c7ine’de bulunur. Bu kumun rengi s\u00fct beyazd\u0131r. Baz\u0131 kuarz kumlar\u0131 a\u00e7\u0131k mora \u00e7alan renk g\u00f6sterirler. Ancak kum, raspa s\u0131ras\u0131nda ufalanmas\u0131 ve dolay\u0131s\u0131 ile tekrar kullan\u0131lmas\u0131n\u0131n verimsiz olmas\u0131ndan dolay\u0131 ve sa\u011fl\u0131\u011fa zararl\u0131 olmas\u0131ndan dolay\u0131 (silikoz) gittik\u00e7e yerini bak\u0131r c\u00fcrufu (Kupferschlacke) veya kuarz ihtiva etmeyen minerallere veya benzeri \u00fcr\u00fcnlere b\u0131rakmaktad\u0131r. Bunlar\u0131n yan\u0131s\u0131ra bir dizi projetil \u00e7e\u015fitli malzemelerde kullan\u0131m g\u00f6rmektedir. Baz\u0131 tatbikatlarda f\u0131nd\u0131k kabu\u011fu hurdas\u0131 dahi kullan\u0131lmaktad\u0131r. Projektil sarfiyat\u0131n\u0131n derecesi ve nispeten ucuz bir malzeme olmas\u0131, uzak yerlerden teminini ekonomik olarak zorla\u015ft\u0131ran bir etkendir.<\/p>\n

\"IMG_6974\"<\/p>\n

Kompres\u00f6r:
\n<\/strong>Tipik kompres\u00f6rler 300 – 500 m3<\/sup>\/saat mertebesinde hava \u00fcreten vidal\u0131 kompres\u00f6rlerdir. Genelde kompres\u00f6rler sistemin kritik \u00f6\u011fesidir, yetmezler, nozulda bas\u0131n\u00e7 ve dolay\u0131s\u0131yla verimin d\u00fc\u015fmesine yol a\u00e7aralar.<\/p>\n

Nozul:\u00a0<\/strong>
\nNozullar \u00e7ok sert bile\u015fiklerden \u00fcretilen (\u00f6rne\u011fin bor karbid) i\u00e7 a\u00e7\u0131kl\u0131\u011f\u0131 en dar yerinde 8 \u2013 12 mm olan, profili Venturi etkisine yol a\u00e7an \u00f6zel elemanlard\u0131r. Projektil, uygun \u015fartlarda nozulda 200 km\/h mertebesinde h\u0131zlanabilir.<\/p>\n

Kum kar\u0131\u015ft\u0131rma kazan\u0131:<\/strong>
\n\u00c7ok fazla \u00f6zelli\u011fi olmayan basit, bas\u0131nca dayan\u0131kl\u0131 bir kazand\u0131r, genelde alt\u0131nda bir kar\u0131\u015ft\u0131rma valf\u0131 vard\u0131r. Bu valf kolay bak\u0131m g\u00f6rebilecek tipte olmal\u0131d\u0131r \u00e7\u00fcnk\u00fc kolay t\u0131kan\u0131r.<\/p>\n

Operat\u00f6r ve koruyucu giysisi:<\/strong><\/p>\n

Kum raspas\u0131 operat\u00f6r\u00fc, cebri hava ile solur, bu hava genelde ana kompres\u00f6rden dalland\u0131r\u0131l\u0131r. Operat\u00f6r, kafas\u0131n\u0131 hafif metal veya CTP’den \u00fcretilmi\u015f bir kaskla korur.
\n\"LIFT10\"<\/p>\n

\u00f6zl\u00fck camlar\u0131 \u00e7ifttir, d\u0131\u015f cam i\u00e7 cam\u0131 korur ve s\u0131k, s\u0131k de\u011fi\u015ftirilmesi gereken bir sarf malzemesi kabul edilir. Operat\u00f6r ayr\u0131ca deri \u00f6nl\u00fck, \u00e7izme ve eldivenlerle korunur. Solunum havas\u0131 insan kullan\u0131m\u0131na g\u00f6re \u015fartland\u0131r\u0131lmal\u0131d\u0131r.<\/p>\n

Hortumlar ve hortum fitingleri:<\/strong><\/p>\n

10 barl\u0131k bezli kau\u00e7uk hortum kullan\u0131l\u0131r. \u0130\u00e7inden kum ge\u00e7en hortum hava hortumundan bir \u00f6l\u00e7\u00fc daha b\u00fcy\u00fck ebattad\u0131r, bu hortum a\u015f\u0131nmadan dolay\u0131 nispeten s\u0131k de\u011fi\u015ftirilir. Hortum fitingleri sustal\u0131 tipte (quick coupling) olup hortum kesidini azaltmamal\u0131d\u0131r.<\/p>\n

Raspalanmaya m\u00fcsait y\u00fczeyler<\/strong><\/p>\n

\u00c7eliklerin raspalanmas\u0131:<\/strong><\/p>\n

\u00c7elik y\u00fczeyler, y\u00fczey pas\u0131n\u0131n temizlenmesi ve y\u00fczeyin p\u00fcr\u00fczlendirilmesi i\u00e7in raspalan\u0131r. P\u00fcr\u00fczlendirmeyle y\u00fczey % 300’e varan mertebede “geni\u015fler” ve bu, boyalar\u0131n y\u00fczeye intibak etmesi i\u00e7in gereklidir. Raspalanm\u0131\u015f y\u00fczeye en iyi intibak eden boyalar epoksi esasl\u0131 astarlard\u0131r. Epoksi \u00e7inko fosfat \u00e7ok ba\u015far\u0131l\u0131 bir astard\u0131r, alt\u0131ndaki sa\u00e7\u0131 anodik olarak da korur. Y\u00fczeyin temizlik derecesi SA1 ile s\u0131n\u0131fland\u0131r\u0131lmaya ba\u015flan\u0131r. Bu, SA3’e kadar iyile\u015ftirilebilir.<\/p>\n

\"IMG_6651\"<\/p>\n

Bu say\u0131lar\u0131n ne ifade etti\u011fini ekteki tabloda g\u00f6rebilirsiniz. Arazi ko\u015fullar\u0131nda elde edilebilecek en iyi y\u00fczey SA 2.5 mertebesindedir. SA 2.5 mertebesinde raspalanm\u0131\u015f ve epoksi esasl\u0131 boyalarla usul\u00fcne uygun boyanm\u0131\u015f bir tekne karinas\u0131nda 6 \u2013 8 y\u0131l boyunca s\u0131rf yaralar\u0131n onar\u0131m\u0131 gerekir, \u00f6nemli bir paslanma olu\u015famaz, boyas\u0131 y\u00fczeysel bak\u0131m uyguland\u0131\u011f\u0131 s\u00fcrece d\u00f6k\u00fclmez. Raspalamadan sonra, hava \u015fartlar\u0131na g\u00f6re astar 2 -4 saat i\u00e7inde uygulanmal\u0131d\u0131r.<\/p>\n

Raspalanm\u0131\u015f sa\u00e7, a\u00e7\u0131k gri, homojen ve ipeksi tekst\u00fcrde bir g\u00f6r\u00fcn\u00fcm arzeder.<\/p>\n

Boyan\u0131ncaya kadar y\u00fczey \u00e7ok hassast\u0131r, kesinlikle tiner, aseton, trikloretilen, bez, f\u0131r\u00e7a, vb dokundurulmamal\u0131, s\u0131rf bas\u0131n\u00e7l\u0131 hava ile “silinmelidir”. Kum raspas\u0131 uygulanm\u0131\u015f y\u00fczeylere kesinlikle el s\u00fcr\u00fclmemelidir.<\/p>\n

\"IMG_7914\"<\/p>\n

Pik d\u00f6k\u00fcmlerde (salma a\u011f\u0131rl\u0131klar) kum raspas\u0131, d\u00f6k\u00fcm\u00fcn g\u00f6zenek yap\u0131s\u0131na g\u00f6re farkl\u0131 sonu\u00e7lar verir.<\/p>\n

Derin g\u00f6zenekli d\u00f6k\u00fcmler, kum raspas\u0131 dahil hi\u00e7bir y\u00f6ntemle pastan ve y\u00fczey bozulmalar\u0131ndan tam anlam\u0131yla ar\u0131nd\u0131r\u0131lamaz.<\/p>\n

\u0130\u011fne raspas\u0131 kum raspas\u0131na alternatif midir? \u0130\u011fne raspas\u0131 y\u00fczeyin bir dizi i\u011fne hareket ettiren bir pn\u00f6matik \u00e7eki\u00e7le temizlenme ve p\u00fcr\u00fczlendirme y\u00f6ntemine verilen isimdir. Kapal\u0131 hacimlerde ve hassas cihazlar\u0131n yak\u0131n\u0131nda kum raspas\u0131n\u0131n yerine kullan\u0131lsa da, olu\u015fan y\u00fczey kum raspas\u0131na nazaran daha parlak ve daha az temizdir.<\/p>\n

\u0130\u011fne raspas\u0131 ancak k\u0131s\u0131tl\u0131 \u015fekilde kum raspas\u0131na alternatiftir.<\/p>\n

[one_third]
\n\"IMG_6982\"[\/one_third]<\/p>\n

[one_third]
\n\"IMG_6980\"[\/one_third]<\/p>\n

[one_third_last]
\n\"IMG_6993\"[\/one_third_last]<\/p>\n

\"IMG_6989\"<\/p>\n

\n

Al\u00fcminyum:<\/strong><\/p>\n

Al\u00fcminyum da \u00e7elik gibi boyaya haz\u0131rl\u0131k olmak \u00fczere raspalanabilir, \u00e7eli\u011fin aksine al\u00fcminyumda, do\u011fru astarlar\u0131n (epoksi baryum kromat) kullan\u0131lmas\u0131 halinde, kaba z\u0131mparal\u0131 (36 kum) y\u00fczeylerde de iyi sonu\u00e7 al\u0131nmaktad\u0131r. Ancak al\u00fcminyumda da kum raspas\u0131 en iyi sonu\u00e7lar\u0131n al\u0131nmas\u0131n\u0131 sa\u011flar. Al\u00fcminyumda y\u00fczey oksidasyonu ba\u015flang\u0131\u00e7ta \u00e7ok ince oldu\u011funda kesinlikle g\u00f6z\u00fckmez, al\u00fcminyumun hi\u00e7 bekletmeden astarlanmas\u0131 \u015fartt\u0131r.<\/p>\n

Ah\u015fap:<\/strong><\/p>\n

\u0130ngiltere’de kum raspas\u0131, kullan\u0131lm\u0131\u015f ve katlarla boya kaplanm\u0131\u015f ah\u015fap y\u00fczeylerin rutin ve hassas bir \u015fekilde boyaya haz\u0131rlanmas\u0131 i\u00e7in kullan\u0131lan bir y\u00f6ntemdir.<\/p>\n

CTP (veya daha yayg\u0131n ad\u0131yla fiberglas):<\/strong><\/p>\n

CTP i\u00e7in de kum raspas\u0131n\u0131n \u00f6nemi b\u00fcy\u00fckt\u00fcr. \u00d6zellikle hidrolize u\u011fram\u0131\u015f (osmozlu) fiberglas, kum raspas\u0131na tabi tutuldu\u011funda, y\u00fczeyin alt\u0131nda kalan, g\u00f6ze tam g\u00f6z\u00fckmeyebilen zay\u0131flam\u0131\u015f b\u00f6lgeler patlat\u0131lmakta, sorunsuz fiberglas ise bu s\u0131rada bozulmamaktad\u0131r. Ger\u00e7i bu \u015fekilde haz\u0131rlanm\u0131\u015f y\u00fczeyler \u00e7ok p\u00fcr\u00fczl\u00fc olduklar\u0131ndan di\u011fer y\u00f6ntemlerle “haz\u0131rlanm\u0131\u015f” y\u00fczeylere nazaran daha fazla macun gerektirmektedirler, ama raspalanm\u0131\u015f y\u00fczey fiberglas\u0131n kurumas\u0131na \u00e7ok m\u00fcsait oldu\u011fu gibi, sa\u011flam y\u00fczeyleri azami derecede korunmu\u015f olmaktad\u0131r. Bu y\u00f6ntem \u00e7ok becerikli raspa operat\u00f6rleri gerektirir, yoksa CTY’ye gereksiz hasar verilir.<\/p>\n

Dikkat edilmesi gereken baz\u0131 konular:<\/strong><\/p>\n<\/div>\n

    \n
  • \n
    Kum raspas\u0131 y\u00fcksek hava debisi gerektirir. Kiral\u0131k kompres\u00f6r operat\u00f6rleri, makinelerin sak\u0131nmaya \u00e7al\u0131\u015ft\u0131klar\u0131ndan
    \nbu debi bir t\u00fcrl\u00fc elde edilemez ve i\u015flem uzar ve kum t\u00fcketimi a\u015f\u0131r\u0131 artabilir. Debi \u00f6l\u00e7mek zordur, ama bir enjekt\u00f6r i\u011fnesi ile nozul \u00f6n\u00fcndeki bas\u0131n\u00e7 raspalama s\u0131ras\u0131nda \u00f6l\u00e7\u00fclebilir ve bu de\u011fer debi hakk\u0131nda malumat verir.<\/div>\n<\/li>\n
  • \n
    A\u015f\u0131nm\u0131\u015f nozul kum t\u00fcketimini \u00e7ok artt\u0131r\u0131r.<\/div>\n<\/li>\n
  • \n
    Kum, i\u015flem s\u0131ras\u0131nda \u00e7ok ufalan\u0131r ve en ufak \u00e7atlaklardan, a\u00e7\u0131kl\u0131klardan etrafa, teknelerin i\u00e7lerine, elektronik cihazlara, motor pistonlar\u0131na kadar n\u00fcfus eder. Kullan\u0131lm\u0131\u015f kumun i\u00e7ine demir oksit (pas) da kar\u0131\u015ft\u0131\u011f\u0131ndan, raspa yap\u0131lan yerlerin civar\u0131ndaki di\u011fer tekneler sararabilir ve tozdan a\u015f\u0131r\u0131 zarar g\u00f6rebilir.<\/div>\n<\/li>\n
  • \n
    Raspa operat\u00f6r\u00fcn\u00fcn maske cam\u0131 k\u0131sa aral\u0131klarla de\u011fi\u015ftirilmelidir. \u0130\u015flem normal cam\u0131 “buzlu cama” d\u00f6n\u00fc\u015ft\u00fcrd\u00fc\u011f\u00fcnden operat\u00f6r bir s\u00fcre sonra \u00f6n\u00fcn\u00fc g\u00f6remez. \u00d6n\u00fcn\u00fc g\u00f6remeyen operat\u00f6r ise tahribata yol a\u00e7ar.<\/div>\n<\/li>\n
  • \n
    A\u015f\u0131r\u0131 ufalanm\u0131\u015f kumu tekrar kullanmak verimsizli\u011fe yol a\u00e7ar. Projektiller, t\u00fcrlerine g\u00f6re genelde iki kez kullan\u0131labilir.<\/div>\n<\/li>\n
  • \n
    Elenmemi\u015f veya rutubetli kum nozulu t\u0131kar.<\/div>\n<\/li>\n
  • \n
    Y\u0131kanmam\u0131\u015f deniz kumu raspalanan suya hassas (paslanabilecek) y\u00fczeyleri derhal bozar.<\/div>\n<\/li>\n
  • \n
    Raspalanan y\u00fczeye k\u0131sa aral\u0131klarla iki kat astar uygulamak gerekir, tek kat astarda baz\u0131 g\u00f6zenekler g\u00f6zden ka\u00e7aca\u011f\u0131ndan, y\u00fczey bozulmas\u0131n\u0131n tohumu at\u0131lm\u0131\u015f olur.<\/div>\n<\/li>\n
  • \n
    E\u011fer raspalanm\u0131\u015f y\u00fczey usul\u00fcne uygun boyanamazsa, boyama arifesinde h\u0131zl\u0131 bir “sweep blasting” yani “s\u00fcp\u00fcrme” uygulan\u0131p i\u015fleme devam edilmelidir.<\/div>\n<\/li>\n<\/ul>\n

    Tablo 1:\u00a0<\/strong>Nozul ve t\u00fcketim ili\u015fkileri<\/b><\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
    <\/td>\nBas\u0131n\u00e7\u00a0<\/strong>(bar olarak ve\u00a0nozulda)<\/td>\n<\/td>\n<\/tr>\n
    \n

    Nozul \u00f6l\u00e7\u00fcs\u00fc<\/strong>(mm)<\/p>\n<\/td>\n

    		\n

    4<\/p>\n<\/td>\n

    		\n

    5<\/p>\n<\/td>\n

    		\n

    5,5<\/p>\n<\/td>\n

    		\n

    6<\/p>\n<\/td>\n

    		\n

    7<\/p>\n<\/td>\n

    		<\/td>\n<\/tr>\n
    \n

    8<\/p>\n<\/td>\n

    		150<\/td>\n170<\/td>\n190<\/td>\n210<\/td>\n240<\/td>\nm3<\/sup>\/h\u00a0 hava<\/td>\n<\/tr>\n
    240<\/td>\n275<\/td>\n310<\/td>\n340<\/td>\n370<\/td>\nKg kum<\/td>\n<\/tr>\n
    14<\/td>\n17<\/td>\n21<\/td>\n24<\/td>\n29<\/td>\nHP kompres\u00f6r<\/td>\n<\/tr>\n
    \n

    10<\/p>\n<\/td>\n

    		215<\/td>\n240<\/td>\n270<\/td>\n290<\/td>\n330<\/td>\nm3<\/sup>\/h\u00a0 hava<\/td>\n<\/tr>\n
    345<\/td>\n390<\/td>\n440<\/td>\n480<\/td>\n520<\/td>\nKg kum<\/td>\n<\/tr>\n
    19<\/td>\n24<\/td>\n29<\/td>\n33<\/td>\n40<\/td>\nHP kompres\u00f6r<\/td>\n<\/tr>\n
    \n

    12<\/p>\n<\/td>\n

    		350<\/td>\n400<\/td>\n450<\/td>\n500<\/td>\n550<\/td>\nm3<\/sup>\/h\u00a0 hava<\/td>\n<\/tr>\n
    500<\/td>\n600<\/td>\n700<\/td>\n800<\/td>\n850<\/td>\nKg kum<\/td>\n<\/tr>\n
    32<\/td>\n40<\/td>\n48<\/td>\n55<\/td>\n65<\/td>\nHP kompres\u00f6r<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
    \n
    \n

    Tablo 2:\u00a0<\/b><\/strong>Y\u00fczey Standartlar\u0131<\/b><\/p>\n\n\n\n\n\n\n\n
    \n

    \u0130smi<\/b><\/p>\n<\/td>\n

    		\n

    Tarifi<\/b><\/p>\n<\/td>\n

    		\n

    \u0130sve\u00e7 Standart\u0131<\/b><\/p>\n<\/td>\n

    		\n

    \u0130ngiliz Standart\u0131<\/b><\/p>\n<\/td>\n

    		\n

    SSPC Codes<\/b><\/p>\n<\/td>\n

    		\n

    NACE<\/b><\/p>\n<\/td>\n

    		\n

    CDN. Govt.
    \n(CGSB)<\/b><\/p>\n<\/td>\n<\/tr>\n

    Beyaz Metal Nisbetinde Kumlama<\/p>\n

    \u00a0<\/a><\/td>\n

    		\n

    G\u00f6r\u00fcn\u00fcr t\u00fcm pas\u0131n, hadde kabu\u011funun, boya ve di\u011fer kirleticilerin temizlenmi\u015f olmas\u0131. Metal, homojen beyaz\/gri olarak g\u00f6z\u00fckecektir. Bu en \u00fcst temizlik derecesidir. Bu metod, \u015fiddetli \u00e7evre \u015fartlar\u0131ndan dolay\u0131 azami boya yap\u0131\u015fmas\u0131n\u0131n gerekli oldu\u011fu durumlarda uygulan\u0131r. \u00d6rnek olarak devaml\u0131 suya veya s\u0131v\u0131 kimyasallara dald\u0131r\u0131lm\u0131\u015f y\u00fczeyler g\u00f6sterilebilir.<\/p>\n<\/td>\n

    		\n

    SA 3<\/p>\n<\/td>\n

    		\n

    BS4232
    \nFirst Quality<\/p>\n<\/td>\n

    		\n

    SSPC.SP5<\/p>\n<\/td>\n

    		\n

    NACE #1<\/p>\n<\/td>\n

    		\n

    31 GP 404
    \nType 1<\/p>\n<\/td>\n<\/tr>\n

    Neredeyse Beyaz Metal Nisbetinde Kumlama<\/p>\n

    \u00a0<\/a><\/td>\n

    		\n

    Bu metodda y\u00fczey t\u00fcm ya\u011f, gres, kir, hadde kabu\u011fu, pas, korozyon \u00fcr\u00fcnleri, oksidler, boya ve di\u011fer yabanc\u0131 maddelerden ar\u0131nd\u0131r\u0131lm\u0131\u015ft\u0131r. Ancak, pas lekelerinden, hadde kabu\u011fu oksitlerinden veya az ve s\u0131k\u0131 s\u0131k\u0131ya yap\u0131\u015fm\u0131\u015f boya ve di\u011fer kaplama art\u0131klar\u0131ndan kaynaklanan istisnai \u00e7ok hafif g\u00f6lgeler, istisnai \u00e7ok hafif \u00e7izgiler ve hafif renk bozukluklar\u0131 kabul edilir. Her 25 mm x 25 mm ebad\u0131ndaki y\u00fczey par\u00e7as\u0131n\u0131n % 95’i g\u00f6r\u00fcl\u00fcr art\u0131klardan ar\u0131nm\u0131\u015f olacak, bakiye y\u00fczeydeki eksiklikler yukarda s\u00f6z edilen hafif renk bozukluklar\u0131yla s\u0131n\u0131rl\u0131 kalacakt\u0131r.<\/p>\n

    Pratik bir g\u00f6r\u00fc\u015f a\u00e7\u0131s\u0131ndan, bu metod her halde kullan\u0131lm\u0131\u015f bir sa\u00e7 yap\u0131n\u0131n ula\u015ft\u0131r\u0131labilece\u011fi en iyi y\u00fczey kalitesini ifade etmektedir.<\/p>\n<\/td>\n

    		\n

    SA 2 \u00bd<\/p>\n<\/td>\n

    		\n

    BS4232
    \nSecond Quality<\/p>\n<\/td>\n

    		\n

    SSPC.SP10<\/p>\n<\/td>\n

    		\n

    NACE #2<\/p>\n<\/td>\n

    		<\/td>\n<\/tr>\n
    Ticari Kumlama<\/p>\n

    \u00a0<\/a><\/td>\n

    		\n

    Bu metodda y\u00fczey t\u00fcm ya\u011f, gres, kir, hadde kabu\u011fu, ve di\u011fer yabanc\u0131 maddelerden ar\u0131nd\u0131r\u0131lm\u0131\u015ft\u0131r. Ancak, pas lekelerinden, hadde kabu\u011fu oksitlerinden veya hafif ve s\u0131k\u0131 boya ve di\u011fer kaplama art\u0131klar\u0131ndan kaynaklanan hafif g\u00f6lgeler, hafif \u00e7izgiler ve hafif renk bozukluklar\u0131 kabul edilir. E\u011fer y\u00fczeyde \u00e7ukurcuklar (pitting) mevcutsa, \u00e7ukur diplerinde hafif pas ve boya art\u0131klar\u0131 kalabilir. Her 25 mm x 25 mm y\u00fczey par\u00e7as\u0131n\u0131n en az % 67’si g\u00f6r\u00fclebilir izlerden ar\u0131nd\u0131r\u0131lm\u0131\u015f olmal\u0131d\u0131r. Bakiye y\u00fczeydeki eksiklikler, yukarda s\u00f6z\u00fc edilen hafif art\u0131klarla s\u0131n\u0131rl\u0131 kalmal\u0131d\u0131r.<\/p>\n<\/td>\n

    		\n

    SA 2<\/p>\n<\/td>\n

    		\n

    BS4232
    \nThird Quality<\/p>\n<\/td>\n

    		\n

    SSPC.SP6<\/p>\n<\/td>\n

    		\n

    NACE #3<\/p>\n<\/td>\n

    		\n

    31 GP 404
    \nType 2<\/p>\n<\/td>\n<\/tr>\n

    Kumla F\u0131r\u00e7alama<\/p>\n

    \u00a0<\/a><\/td>\n

    		\n

    Bu metodda y\u00fczey t\u00fcm ya\u011f, gres, kir, kabuklu pas, hadde kabu\u011fu, y\u00fczeye intibak etmemi\u015f pas ve boya art\u0131klar\u0131ndan ve di\u011fer yabanc\u0131 maddelerden ar\u0131nd\u0131r\u0131lm\u0131\u015ft\u0131r. Y\u00fczeye s\u0131k\u0131 intibak etmi\u015f hadde kabu\u011fu ve pas, boya ve di\u011fer y\u00fczey kaplamalar\u0131n\u0131n kalmalar\u0131na izin verilir. Ancak, t\u00fcm hadde art\u0131klar\u0131n\u0131n ve pas\u0131n, alttan bol miktarda ve y\u00fczeye homojen da\u011f\u0131lm\u0131\u015f metalin g\u00f6z\u00fckece\u011fi derecede kumlanm\u0131\u015f olmas\u0131 aran\u0131r.<\/p>\n<\/td>\n

    		\n

    SA 1<\/p>\n<\/td>\n

    		\n

    Light blast to brush-off<\/p>\n<\/td>\n

    		\n

    SSPC.SP7<\/p>\n<\/td>\n

    		\n

    NACE #4<\/p>\n<\/td>\n

    		\n

    31 GP 404
    \nType 3<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

    <\/p>","protected":false},"excerpt":{"rendered":"

    Bu yaz\u0131da, 20 \u2013 25 m tam boya kadar olan teknelerle ilgili kum raspas\u0131 tecr\u00fcbelerimizden faydaland\u0131k. Kum raspas\u0131, veya kumlama, (sand blasting = kumlu patlatma) metallerin, ah\u015faplar\u0131n ve plastiklerin y\u00fczeylerini temizleme ve p\u00fcr\u00fczl\u00fc bir str\u00fckt\u00fcr verme tekniklerinden birine verilen add\u0131r.…<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"open","ping_status":"open","template":"template-blank-canvas.php","meta":{"footnotes":""},"class_list":["post-7706","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/yachtworks.info\/tr\/wp-json\/wp\/v2\/pages\/7706"}],"collection":[{"href":"https:\/\/yachtworks.info\/tr\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/yachtworks.info\/tr\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/yachtworks.info\/tr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/yachtworks.info\/tr\/wp-json\/wp\/v2\/comments?post=7706"}],"version-history":[{"count":0,"href":"https:\/\/yachtworks.info\/tr\/wp-json\/wp\/v2\/pages\/7706\/revisions"}],"wp:attachment":[{"href":"https:\/\/yachtworks.info\/tr\/wp-json\/wp\/v2\/media?parent=7706"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}