{"id":1036,"date":"2013-11-19T00:00:00","date_gmt":"2013-11-19T00:00:00","guid":{"rendered":"https:\/\/www.dgcrane.com\/posts\/overhead-cranes-used-in-granite\/"},"modified":"2024-09-09T06:52:15","modified_gmt":"2024-09-09T06:52:15","slug":"overhead-cranes-used-in-granite","status":"publish","type":"posts","link":"https:\/\/www.dgcrane.com\/cs\/overhead-cranes-used-granite\/","title":{"rendered":"Mostov\u00e9 Je\u0159\u00e1by Pou\u017e\u00edvan\u00e9 V \u017eule"},"content":{"rendered":"

Mnoho z toho, co d\u011bl\u00e1 \u017eulu tak jedine\u010dnou, je historie kamene. V showroomech G&L Marble, kde jsou \u017eulov\u00e9 desky \u00fahledn\u011b naskl\u00e1d\u00e1ny do svazk\u016f pro prohl\u00ed\u017een\u00ed, je snadn\u00e9 p\u0159ehl\u00e9dnout dlouh\u00fd proces z\u00edsk\u00e1v\u00e1n\u00ed \u017euly do va\u0161\u00ed kuchyn\u011b. Jak se tedy ze sk\u00e1ly stane pultov\u00e1 deska?<\/p>\r\n

Nejprve mus\u00ed b\u00fdt objevena \u017eula. Lomy na p\u0159\u00edrodn\u00ed k\u00e1men se nach\u00e1zej\u00ed po cel\u00e9m sv\u011bt\u011b. Ka\u017ed\u00fd kontinent m\u00e1 sv\u00e9 vlastn\u00ed charakteristick\u00e9 horninov\u00e9 typy a barvy. Prost\u0159ednictv\u00edm procesu vyhled\u00e1v\u00e1n\u00ed a studia geologick\u00fdch pr\u016fzkum\u016f jsou lokality vyb\u00edr\u00e1ny pro jejich strukturu, barvu a prodejnost. Tato m\u00edsta se mohou nach\u00e1zet na extr\u00e9mn\u011b odlehl\u00fdch m\u00edstech, jako je Madagaskar, Amazonsk\u00e1 oblast v Braz\u00edlii nebo v pou\u0161tn\u00ed oblasti Namibie, kter\u00e1 se nach\u00e1z\u00ed na africk\u00e9m kontinentu. Jakmile je vybr\u00e1no m\u00edsto a jsou z\u00edsk\u00e1ny t\u011b\u017eebn\u00ed licence dodr\u017eov\u00e1n\u00edm p\u0159\u00edsn\u00fdch ekologick\u00fdch pokyn\u016f, za\u010d\u00edn\u00e1 t\u011b\u017eba.<\/p>\r\n

D\u00e1le mus\u00ed b\u00fdt \u017eula vyt\u011b\u017eena ze zem\u011b. T\u011b\u017eba je proces vrt\u00e1n\u00ed a \u0159ez\u00e1n\u00ed dr\u00e1tem, aby se uvolnily obrovsk\u00e9 kamenn\u00e9 lavice. Pot\u00e9 se lavi\u010dky provrtaj\u00ed a rozd\u011bl\u00ed na bloky. Hotov\u00e9 bloky maj\u00ed v pr\u016fm\u011bru 10'x6'x6' a mohou v\u00e1\u017eit a\u017e 40 tun. Bloky jsou kontrolov\u00e1ny na p\u0159\u00edpadn\u00e9 praskliny, velk\u00e9 vady a na barevn\u00fd rozsah.<\/p>\r\n

Doprava z lomu do zpracovatelsk\u00e9ho z\u00e1vodu se li\u0161\u00ed v z\u00e1vislosti na um\u00edst\u011bn\u00ed lomu. Z na\u0161ich pou\u0161tn\u00edch lom\u016f v Namibii bylo mnoho blok\u016f dopraveno 1200 mil do na\u0161eho z\u00e1vodu v Ji\u017en\u00ed Africe. Dal\u0161\u00ed bloky jsou posl\u00e1ny kamiony do p\u0159\u00edstavu Walvis Bay v Namibii a pot\u00e9 p\u0159epraveny lod\u00ed do It\u00e1lie ke zpracov\u00e1n\u00ed. Po p\u0159\u00edjezdu do zpracovatelsk\u00e9ho z\u00e1vodu se vyb\u00edraj\u00ed bloky k \u0159ez\u00e1n\u00ed. Pomoc\u00ed 40tunov\u00fdch port\u00e1lov\u00fdch je\u0159\u00e1b\u016f jsou bloky um\u00edst\u011bny na velk\u00e9 voz\u00edky a ta\u017eeny pod motorov\u00e9 pily pro \u0159ez\u00e1n\u00ed. Gangov\u00e9 pily jsou obrovsk\u00e9 stroje. Masivn\u00ed lopatky jsou zarovn\u00e1ny a rozm\u00edst\u011bny na velk\u00e9m voz\u00edku o \u0161\u00ed\u0159ce a\u017e 18\u2032. Voz\u00edk je poh\u00e1n\u011bn elektromotorem a je tla\u010den a tah\u00e1n tam a zp\u011bt. Zat\u00edmco se \u010depele pohybuj\u00ed, na bloky se nal\u00e9v\u00e1 \u0159ezn\u00e1 suspenze slo\u017een\u00e1 z ocelov\u00e9 drti a vody, aby se zajistila abraze pro \u0159ez\u00e1n\u00ed.<\/p>\r\n

Dokon\u010den\u00ed \u0159ez\u00e1n\u00ed bloku vy\u017eaduje 2-7 dn\u00ed (v z\u00e1vislosti na tvrdosti kamene). Kvalita \u0159ez\u00e1n\u00ed z\u00e1vis\u00ed na dovednostech mistr\u016f gangov\u00fdch pil, kte\u0159\u00ed maj\u00ed \u0159ez\u00e1n\u00ed na starosti. Vzhledem k prom\u011bnn\u00fdm hodnot\u00e1m tvrdosti kamene, hustot\u011b, kalu, napnut\u00ed kotou\u010de a rychlosti \u0159ez\u00e1n\u00ed vy\u017eaduje proces \u0159ez\u00e1n\u00ed neust\u00e1l\u00e9 monitorov\u00e1n\u00ed ze strany mistr\u016f. Hrub\u011b na\u0159ezan\u00e9 desky se n\u00e1sledn\u011b d\u016fkladn\u011b o\u010dist\u00ed vodou a p\u0159iprav\u00ed na dal\u0161\u00ed f\u00e1zi zpracov\u00e1n\u00ed.<\/p>\r\n

Dal\u0161\u00ed f\u00e1ze je d\u00e1na konkr\u00e9tn\u00edm typem kamene. Mnoho z dnes t\u011b\u017een\u00fdch \u017eul proch\u00e1z\u00ed epoxidov\u00fdm procesem, aby se zv\u00fd\u0161ila kvalita kamene. Nap\u0159\u00edklad velk\u00e9 krystaly k\u0159emene nalezen\u00e9 v n\u011bkter\u00fdch granitech maj\u00ed trhliny nebo praskliny. Faktem je, \u017ee kdyby tam nebyly trhliny, nebyl by to k\u0159emen. Tyto vlastnosti jsou tomuto miner\u00e1lu vlastn\u00ed. Tyto trhliny nejsou defekty, jak \u0159\u00edk\u00e1me v kamenick\u00e9m pr\u016fmyslu: \u201eMatka p\u0159\u00edroda ned\u011bl\u00e1 chyby\u201c. S dne\u0161n\u00ed epoxidovou technologi\u00ed v\u0161ak lze pro pracovn\u00ed desky zpracovat v\u011bt\u0161\u00ed mno\u017estv\u00ed exotick\u00fdch \u017euly.<\/p>\r\n

Epoxidov\u00fd proces za\u010d\u00edn\u00e1 vlo\u017een\u00edm desek do pece, aby se k\u00e1men \u00fapln\u011b vysu\u0161il a p\u0159ed aplikac\u00ed epoxidu se p\u0159ivedl na rovnom\u011brnou teplotu. Epoxidov\u00e1 prysky\u0159ice se nalije a pot\u00e9 se nanese st\u011brkou v tenk\u00e9 vrstv\u011b po cel\u00e9m povrchu desky. Desky jsou pot\u00e9 srolov\u00e1ny do vakuov\u00e9 komory, kde se vytahuj\u00ed v\u0161echny vzduchov\u00e9 kapsy, tak\u017ee epoxid m\u016f\u017ee proniknout hluboko do desek. Epoxid je pot\u00e9 vytvrzen v peci do extr\u00e9mn\u011b tvrd\u00e9ho n\u00e1t\u011bru.<\/p>\r\n

Proces le\u0161t\u011bn\u00ed je stejn\u00fd bez ohledu na to, zda byla deska epoxidov\u00e1na. Le\u0161tic\u00ed linka je dlouh\u00fd dopravn\u00edk, kter\u00fd pos\u00edl\u00e1 desky pod 21 samostatn\u00fdch brousic\u00edch a pot\u00e9 le\u0161t\u00edc\u00edch hlav. Le\u0161t\u011bn\u00ed je dosa\u017eeno \u0159adou zrn na rota\u010dn\u00edch le\u0161t\u00edc\u00edch hlav\u00e1ch po\u010d\u00ednaje velmi hrub\u00fdm diamantov\u00fdm brusivem o zrnitosti 60 a\u017e po le\u0161t\u00edc\u00ed cihly zrnitost\u00ed 1800. Kdy\u017e jsou epoxidov\u00e9 desky le\u0161t\u011bny, ve\u0161ker\u00fd epoxid je z povrchu vybrou\u0161en. Z\u016fst\u00e1v\u00e1 epoxid, kter\u00fd pronikl pod povrch do p\u0159\u00edpadn\u00fdch trhlin, d\u016flk\u016f nebo dutin. Po kontrole kvality jsou desky p\u0159ipraveny ke sv\u00e1z\u00e1n\u00ed, nalo\u017een\u00ed do kontejneru a odesl\u00e1n\u00ed. Jakmile jsou pl\u00e1ty zabaleny do svazk\u016f (p\u0159edpokl\u00e1dejme kraj\u00edce chleba v bochn\u00edku), jsou nalo\u017eeny do p\u0159epravn\u00edch kontejner\u016f. Tyto kontejnery jsou pot\u00e9 nalo\u017eeny na n\u00e1kladn\u00ed lo\u010f sm\u011b\u0159uj\u00edc\u00ed do r\u016fzn\u00fdch destinac\u00ed. Na\u0161e kontejnery (zas\u00edlan\u00e9 z cel\u00e9ho sv\u011bta) jsou p\u0159iv\u00e1\u017eeny do p\u0159\u00edstavu Savannah nebo Charleston. Doba p\u0159epravy se li\u0161\u00ed v z\u00e1vislosti na p\u0159\u00edstavu vykl\u00e1dky, nicm\u00e9n\u011b 4\u20136 t\u00fddn\u016f je typick\u00e1 doba cesty z jak\u00e9koli tov\u00e1rny do na\u0161eho skladu.<\/p>\r\n

Po p\u0159\u00edjezdu do vstupn\u00edho p\u0159\u00edstavu prob\u00edh\u00e1 celn\u00ed odbaven\u00ed spolu s n\u00e1hodn\u00fdmi kontrolami USDA. Po vyklizen\u00ed z p\u0159\u00edstavu jsou kontejnery nalo\u017eeny na n\u00e1kladn\u00ed auto sm\u011b\u0159uj\u00edc\u00ed do na\u0161eho skladu ve Winstonu, GA.<\/p>\r\n

Ve skladu jsou kontejnery vykl\u00e1d\u00e1ny mostov\u00fdmi je\u0159\u00e1by a pot\u00e9 uspo\u0159\u00e1d\u00e1ny pro kontrolu kvality. B\u011bhem kontroly kvality je ka\u017ed\u00e1 jednotliv\u00e1 deska kontrolov\u00e1na na p\u0159\u00edpadn\u00e9 vady zpracov\u00e1n\u00ed, praskliny, kvalitu le\u0161t\u011bn\u00ed atd. Z na\u0161eho hlavn\u00edho skladu jsou bal\u00edky odes\u00edl\u00e1ny do na\u0161ich showroom\u016f v Alpharetta, Atlanta, Birmingham, Destin, High Point, Jacksonville, Knoxville a Raleigh. Manipulace s deskami (v\u00e1\u017e\u00edc\u00edmi v\u00edce ne\u017e 1200 liber) se prov\u00e1d\u00ed pomoc\u00ed mostov\u00fdch je\u0159\u00e1b\u016f nebo mechanick\u00fdch nakl\u00e1dac\u00edch v\u00fdlo\u017en\u00edk\u016f. V na\u0161ich showroomech jsou desky pln\u011b vystaveny, aby si z\u00e1kazn\u00edci mohli vybrat. Na\u0161e showroomy jsou vybaveny pro rozlo\u017een\u00ed svazku zvolen\u00e9ho materi\u00e1lu, tak\u017ee si z\u00e1kazn\u00edk m\u016f\u017ee skute\u010dn\u011b vybrat sv\u00e9 jednotliv\u00e9 desky. Po v\u00fdb\u011bru a schv\u00e1len\u00ed konkr\u00e9tn\u00edch desek z\u00e1kazn\u00edk pot\u00e9 uzav\u0159e smlouvu s v\u00fdrobcem o \u0159ez\u00e1n\u00ed a instalaci jejich pracovn\u00edch desek. V\u00fdrobci zadaj\u00ed z\u00e1kaznickou objedn\u00e1vku desek u G&L a my ji do jejich obchodu ode\u0161leme do 2-3 dn\u016f od zad\u00e1n\u00ed objedn\u00e1vky.<\/p>\r\n

P\u0159i pohledu na \u017eulovou pracovn\u00ed desku je t\u011b\u017ek\u00e9 si p\u0159edstavit, jak rozs\u00e1hl\u00fd a \u010dasov\u011b n\u00e1ro\u010dn\u00fd proces pro\u0161el, ne\u017e dorazil k v\u00e1m dom\u016f. Byly ujety tis\u00edce mil a stovky rukou vyt\u011b\u017eily, vyle\u0161tily, p\u0159epravily, odeslaly, p\u0159ijaly, zm\u011b\u0159ily, na\u0159ezaly a nainstalovaly tento kus kamene. P\u0159\u00edrodn\u00ed k\u00e1men m\u00e1 svou historii, pokud jde o jeho formov\u00e1n\u00ed, ale u\u017e jen dostat se ze zem\u011b do va\u0161eho domova je p\u0159\u00edb\u011bh s\u00e1m o sob\u011b. Pr\u00e1v\u011b tento p\u0159\u00edb\u011bh vysv\u011btluje, pro\u010d lid\u00e9, kte\u0159\u00ed maj\u00ed r\u00e1di sv\u00e9 \u017eulov\u00e9 desky, oce\u0148uj\u00ed p\u0159\u00edrodn\u00ed k\u00e1men. Ka\u017ed\u00fd kus je jedine\u010dn\u00fd jako samotn\u00ed majitel\u00e9 domu. Toto ocen\u011bn\u00ed p\u0159\u00edrodn\u00edho kamene odd\u011bluje \u017eulu od \u201ejen dal\u0161\u00edho stavebn\u00edho materi\u00e1lu\u201c. Navzdory mnoha proces\u016fm, kter\u00e9 s t\u00edm souvis\u00ed, z\u016fst\u00e1v\u00e1 p\u0159\u00edrodn\u00ed k\u00e1men cenov\u011b velmi konkurenceschopn\u00fd. V mnoha p\u0159\u00edpadech je cena ni\u017e\u0161\u00ed ne\u017e u produkt\u016f s pevn\u00fdm povrchem, i kdy\u017e se pevn\u00fd povrch vyr\u00e1b\u00ed za zlomek n\u00e1klad\u016f. P\u0159\u00edrodn\u00ed k\u00e1men je ve t\u0159\u00edd\u011b s\u00e1m o sob\u011b. Jedinou skute\u010dn\u011b p\u0159\u00edrodn\u00ed volbou je p\u0159\u00edrodn\u00ed k\u00e1men.<\/p>\r\n

\"\"<\/p>","protected":false},"excerpt":{"rendered":"Mnoho z toho, co d\u011bl\u00e1 \u017eulu tak jedine\u010dnou, je historie kamene. V showroomech G&L Marble, kde jsou \u017eulov\u00e9 desky \u00fahledn\u011b naskl\u00e1d\u00e1ny do svazk\u016f pro prohl\u00ed\u017een\u00ed, je snadn\u00e9 p\u0159ehl\u00e9dnout dlouh\u00fd proces z\u00edsk\u00e1v\u00e1n\u00ed \u017euly do va\u0161\u00ed kuchyn\u011b. Jak se tedy ze sk\u00e1ly stane pultov\u00e1 deska? Nejprve mus\u00ed b\u00fdt objevena \u017eula. [\u2026]","protected":false},"featured_media":1298,"parent":0,"menu_order":0,"template":"","posts_category":[351],"posts_tag":[7,41,54,33,6,34],"class_list":["post-1036","posts","type-posts","status-publish","has-post-thumbnail","hentry","posts_category-blog","posts_tag-crane","posts_tag-crane-posts","posts_tag-gantry-crane","posts_tag-news","posts_tag-overhead-crane","posts_tag-overhead-cranes"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.dgcrane.com\/cs\/wp-json\/wp\/v2\/xmxposts\/1036"}],"collection":[{"href":"https:\/\/www.dgcrane.com\/cs\/wp-json\/wp\/v2\/xmxposts"}],"about":[{"href":"https:\/\/www.dgcrane.com\/cs\/wp-json\/wp\/v2\/types\/posts"}],"version-history":[{"count":2,"href":"https:\/\/www.dgcrane.com\/cs\/wp-json\/wp\/v2\/xmxposts\/1036\/revisions"}],"predecessor-version":[{"id":1318,"href":"https:\/\/www.dgcrane.com\/cs\/wp-json\/wp\/v2\/xmxposts\/1036\/revisions\/1318"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.dgcrane.com\/cs\/wp-json\/wp\/v2\/media\/1298"}],"wp:attachment":[{"href":"https:\/\/www.dgcrane.com\/cs\/wp-json\/wp\/v2\/media?parent=1036"}],"wp:term":[{"taxonomy":"posts_category","embeddable":true,"href":"https:\/\/www.dgcrane.com\/cs\/wp-json\/wp\/v2\/posts_category?post=1036"},{"taxonomy":"posts_tag","embeddable":true,"href":"https:\/\/www.dgcrane.com\/cs\/wp-json\/wp\/v2\/posts_tag?post=1036"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}