{"id":2364,"date":"2022-06-29T13:46:48","date_gmt":"2022-06-29T11:46:48","guid":{"rendered":"https:\/\/www.e-prumysl.cz\/?p=2364"},"modified":"2022-06-29T13:46:50","modified_gmt":"2022-06-29T11:46:50","slug":"jak-vybrat-spravny-vrtak","status":"publish","type":"post","link":"https:\/\/www.e-prumysl.cz\/?p=2364","title":{"rendered":"Jak vybrat spr\u00e1vn\u00fd vrt\u00e1k"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">P\u0159i vrt\u00e1n\u00ed d\u011br si mnoz\u00ed st\u011b\u017euj\u00ed na to, \u017ee je vrta\u010dka p\u0159islab\u00e1 a vrt\u00e1k p\u0159itup\u00fd. \u010casto je v\u0161ak za ne\u00fasp\u011bchem nevhodn\u00fd v\u00fdb\u011br vrt\u00e1ku. M\u016f\u017ee se v\u00e1m zd\u00e1t, \u017ee v\u0161echny jsou stejn\u00e9 a nemaj\u00ed se v \u010dem li\u0161it. Opak je v\u0161ak pravdou. Ka\u017ed\u00fd z nich je navr\u017een tak, aby podal co nejlep\u0161\u00ed v\u00fdkon v materi\u00e1lu, pro kter\u00fd je ur\u010den.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Vrt\u00e1ky se li\u0161\u00ed nejen hou\u017eevnatost\u00ed materi\u00e1lu, ze kter\u00e9ho jsou vyrobeny, ale tak\u00e9 svou geometri\u00ed. Zat\u00edmco vrt\u00e1k do d\u0159eva mus\u00ed b\u00fdt schopen vyn\u00e9st z otvoru za kr\u00e1tkou dobu maximum t\u0159\u00edsek a zajistit \u00fahlednost otvoru, jin\u00fd si mus\u00ed poradit se zah\u0159\u00edv\u00e1n\u00edm p\u0159i vrt\u00e1n\u00ed do kovu \u010di r\u016fznorodost\u00ed betonov\u00e9 st\u011bny. V\u00fdrobci pou\u017e\u00edvaj\u00ed r\u016fzn\u00e9 f\u00edgle, aby vyhov\u011bli r\u016fznorod\u00fdm po\u017eadavk\u016fm.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Na ka\u017ed\u00fd kov jin\u00e1 taktika<br>Pokud jste dosud pou\u017e\u00edvali jedin\u00fd druh vrt\u00e1k\u016f, s nejv\u011bt\u0161\u00ed pravd\u011bpodobnost\u00ed to byl n\u011bkter\u00fd z univers\u00e1l\u016f ur\u010den\u00fd pro kov. Ty nejlevn\u011bj\u0161\u00ed se vyr\u00e1b\u011bj\u00ed z uhl\u00edkov\u00e9 nebo rychlo\u0159ezn\u00e9 oceli a nejvhodn\u011bj\u0161\u00ed jsou pro vrt\u00e1n\u00ed barevn\u00fdch kov\u016f a m\u011bkk\u00fdch druh\u016f ocel\u00ed. Jejich nep\u0159\u00edtelem je vysok\u00e1 teplota, kter\u00e1 m\u016f\u017ee p\u0159i hlouben\u00ed otvoru vznikat. Proto je dobr\u00e9 pou\u017e\u00edt mazac\u00ed p\u0159\u00edpravek, d\u011blat p\u0159i pr\u00e1ci p\u0159est\u00e1vky a nen\u00ed na \u0161kodu u hrub\u0161\u00edch materi\u00e1l\u016f um\u00edstit vrta\u010dku do stojanu. Dr\u017e\u00edte-li v ruce klasick\u00fd \u201e\u010dern\u00fd vrt\u00e1k\u201c nebo na stopce vid\u00edte n\u00e1pis HSS \u010di HSS-R, jde o tuto t\u0159\u00eddu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pro vrt\u00e1n\u00ed otvor\u016f do tvrd\u0161\u00edch kov\u016f je t\u0159eba s\u00e1hnout po v\u00fdkonn\u011bj\u0161\u00edm vrt\u00e1ku, kter\u00fd se dok\u00e1\u017ee zakousnout i do hou\u017eevnat\u011bj\u0161\u00edho materi\u00e1lu. Vrt\u00e1ky s ozna\u010den\u00edm HSS-G jsou pevn\u011bj\u0161\u00ed a maj\u00ed speci\u00e1ln\u011b brou\u0161en\u00fd hrot, kter\u00fd se nezastav\u00ed ani p\u0159ed n\u00e1strojovou ocel\u00ed. V\u011bt\u0161inou jsou leskl\u00e9, st\u0159\u00edb\u0159it\u00e9 barvy a m\u011bli byste po nich s\u00e1hnout v\u017edy p\u0159i vrt\u00e1n\u00ed do oceli. Aby se p\u0159i intenzivn\u00ed n\u00e1maze neopot\u0159ebovali p\u0159\u00edli\u0161 rychle, v\u00fdrobci je za p\u0159\u00edplatek potahuj\u00ed titanovou vrstvou, \u010d\u00edm\u017e z\u00edskaj\u00ed na\u017eloutl\u00fd povrch. Ten je chr\u00e1n\u00ed p\u0159ed t\u0159en\u00edm.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Samostatnou kategori\u00ed jsou extr\u00e9mn\u011b tvrd\u00e9, ale velmi k\u0159ehk\u00e9 vrt\u00e1ky z oceli, jej\u00ed\u017e vlastnosti byly vylep\u0161eny p\u0159\u00eddavkem kobaltu. Takov\u00fd vrt\u00e1k se nezastav\u00ed p\u0159ed \u017e\u00e1dn\u00fdm kovem, pou\u017e\u00edvaj\u00ed se v\u0161ak t\u00e9m\u011b\u0159 v\u00fdhradn\u011b ve stojanov\u00fdch vrta\u010dk\u00e1ch. Zrada nastane, jak pot\u0159ebujete vyvrtat v\u011bt\u0161\u00ed otvor do tenk\u00e9ho plechu. Tehdy jsou dobrou pom\u016fckou stup\u0148ovit\u00e9 vrt\u00e1ky pro p\u0159esn\u00e9 vrt\u00e1n\u00ed nebo speci\u00e1ln\u00ed vrt\u00e1ky s vyst\u0159e\u010fovac\u00edm hrotem, kter\u00e9 zabr\u00e1n\u00ed klouz\u00e1n\u00ed vrt\u00e1ku po rovin\u011b.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A co d\u0159evo?<br>Vrt\u00e1n\u00ed do d\u0159eva nevyhovuj\u00ed ani vysok\u00e9 ot\u00e1\u010dky vrta\u010dky, ani vrt\u00e1ky na \u017eelezo. Aby byly d\u00edry p\u0159esn\u00e9, hladk\u00e9 a nevytrh\u00e1valy t\u0159\u00edsky na rubu materi\u00e1lu, ty do d\u0159eva jsou vybaveny centrovac\u00edm hrotem a speci\u00e1ln\u011b brou\u0161en\u00fdm hrotem se dv\u011bma b\u0159ity. Ty odeb\u00edraj\u00ed materi\u00e1l nejprve u okraj\u016f d\u00edry a a\u017e n\u00e1sledn\u011b ve zbytku pr\u016f\u0159ezu. Od t\u011bch na kov je rozezn\u00e1te podle ostr\u00e9 \u0161pi\u010dky s dvojice hrot\u016f na okraj\u00edch. Pokud v\u00e1s ve va\u0161em \u017eelez\u00e1\u0159stv\u00ed p\u0159esv\u011bd\u010duj\u00ed, \u017ee o nich nikdy nesly\u0161eli, kdesi bude probl\u00e9m.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Hadovit\u00e9 vrt\u00e1ky pom\u00e1haj\u00ed p\u0159i hlouben\u00ed del\u0161\u00edch otvor\u016f o v\u011bt\u0161\u00edm pr\u016fm\u011bru, kde se mus\u00ed postarat o odeb\u00edr\u00e1n\u00ed velk\u00e9ho mno\u017estv\u00ed t\u0159\u00edsek. Maj\u00ed hrot se z\u00e1vitem, ostrou \u010deln\u00ed hranu pro o\u0159ez\u00e1v\u00e1n\u00ed materi\u00e1lu a \u0161irok\u00e9 dr\u00e1\u017eky pro vyn\u00e1\u0161en\u00ed t\u0159\u00edsek. Pou\u017e\u00edvaj\u00ed je hlavn\u011b tesa\u0159i p\u0159i spojov\u00e1n\u00ed hranol\u016f. Aby je bylo p\u0159i v\u011bt\u0161\u00edch pr\u016f\u0159ezech mo\u017en\u00e9 pou\u017e\u00edt v b\u011b\u017en\u00e9 vrta\u010dce, \u010dasto maj\u00ed z\u00fa\u017een\u00fd d\u0159\u00edk, aby se ve\u0161ly do skl\u00ed\u010didla.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Levn\u011bj\u0161\u00ed, av\u0161ak m\u00e9n\u011b p\u0159esnou alternativou jsou ploch\u00e9 vrt\u00e1ky, kter\u00e9 maj\u00ed na okrouhl\u00e9 ose s hrotem na konci plot\u00fdnku s \u010deln\u00edm ost\u0159\u00edm. Nejednou lze nasadit na prodlu\u017eovac\u00ed d\u0159\u00edk, aby jimi bylo mo\u017en\u00e9 vrtat hlubok\u00e9 otvory. Truhl\u00e1\u0159i v\u0161ak pou\u017e\u00edvaj\u00ed i dal\u0161\u00ed speci\u00e1ln\u00ed n\u00e1stroje, kter\u00e9 maj\u00ed bl\u00ed\u017ee k fr\u00e9z\u00e1m ne\u017e vrt\u00e1k\u016fm. Lze jimi odstranit z d\u0159ev\u011bn\u00e9ho masivu boule, aby je bylo mo\u017en\u00e9 nahradit d\u0159ev\u011bn\u00fdmi z\u00e1tkami.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Plasty si \u017e\u00e1daj\u00ed taktiku<br>P\u0159i vrt\u00e1n\u00ed plast\u016f z\u00e1vis\u00ed na tom, s jak\u00fdm materi\u00e1lem se pou\u0161t\u00edte do pr\u00e1ce. Zat\u00edmco u tvrd\u00fdch reaktoplast\u016f jsou vhodn\u00e9 vrt\u00e1ky ur\u010den\u00e9 pro \u017eelezo, u m\u011bkk\u00fdch termoplast\u016f se v\u00edce osv\u011bd\u010d\u00ed vrt\u00e1ky ur\u010den\u00e9 pro d\u0159evo. Nejednou v\u0161ak hraj\u00ed d\u016fle\u017eitou roli i speci\u00e1ln\u00ed p\u0159\u00edpravky, kter\u00e9 chr\u00e1n\u00ed vrt\u00e1ky p\u0159ed zan\u00e1\u0161en\u00edm.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Plasty se mohou p\u0159i opracov\u00e1v\u00e1n\u00ed zah\u0159\u00edvat, m\u011bnit sv\u00e9 vlastnosti a m\u00e1-li b\u00fdt otvor hladk\u00fd a p\u0159esn\u00fd, n\u011bkdy to m\u016f\u017ee b\u00fdt probl\u00e9m.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Jde to i do zdiva<br>M\u00e1te-li za sebou rekonstrukci bytu \u010di rodinn\u00e9ho domu, ur\u010dit\u011b jste se neobe\u0161li bez vrt\u00e1n\u00ed otvor\u016f do zdiva. Na p\u00e1lenou cihlu \u010di beton je ocelov\u00fd vrt\u00e1k p\u0159\u00edli\u0161 kr\u00e1tk\u00fd a tak se krom\u011b p\u0159\u00edklepu dost\u00e1v\u00e1 ke slovu i hrot s karbidov\u00fdmi pl\u00e1tky. Ty se agresivn\u011b dok\u00e1\u017eou prokousat i p\u0159es t\u0159\u00ed\u0161t\u00edc\u00ed se k\u00e1men, kter\u00fd se odlu\u010duje z betonu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Vrt\u00e1ky s v\u00eddiov\u00fdm hrotem a hladkou stopkou jsou vhodn\u00e9 pro vrt\u00e1n\u00ed do s\u00e1drokartonu, p\u00f3robetonu, nep\u00e1len\u00e9 cihly a jin\u00fdch m\u011bkk\u00fdch materi\u00e1l\u016f, kter\u00e9 nevy\u017eaduj\u00ed p\u0159\u00edklep. Hrot se v t\u011bchto materi\u00e1lech netup\u00ed a dok\u00e1\u017ee vytvo\u0159it \u010dist\u00e9 otvory, u kter\u00fdch lze po\u010d\u00edtat s p\u0159esnost\u00ed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pro vrt\u00e1n\u00ed s p\u0159\u00edklepem se pou\u017e\u00edvaj\u00ed vrt\u00e1ky s tvarovanou stopkou, kter\u00e1 zabra\u0148uje jejich uvoln\u011bn\u00ed ze skl\u00ed\u010didla vrta\u010dky. Nej\u010dast\u011bji se m\u016f\u017eete setkat se standardn\u00edmi SDS a SDS-Plus s typick\u00fdmi dr\u00e1\u017ekami. Svou pr\u00e1ci ud\u011blaj\u00ed nejen p\u0159i p\u00e1len\u00e9 cihle, ale tak\u00e9 p\u0159i vrt\u00e1n\u00ed do betonu, tvrzen\u00fdch konstrukc\u00ed a kamene. Tady v\u0161ak velmi z\u00e1le\u017e\u00ed na pou\u017eit\u00fdch materi\u00e1lech a kvalit\u011b karbidov\u00fdch pl\u00e1tk\u016f. Pokud jste dosud nedok\u00e1zali zjistit, pro\u010d je propastn\u00fd rozd\u00edl v cen\u011b dvou vrt\u00e1k\u016f o stejn\u00e9m pr\u016fm\u011bru a d\u00e9lce, zkuste si n\u011bkdy v\u0161imnout jejich hrot\u016f. Zat\u00edmco levn\u011bj\u0161\u00ed vrt\u00e1ky maj\u00ed na \u010dele pouze dv\u011b tvrzen\u00e1 ost\u0159\u00ed, ty dra\u017e\u0161\u00ed maj\u00ed \u010dty\u0159i. Novinkou jsou vrt\u00e1ky s b\u0159itov\u00fdmi desti\u010dkami ve tvaru p\u00edsmene Y.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">P\u0159i p\u0159\u00edprav\u011b elektroinstalace se neobejdete bez korunkov\u00e9ho vrt\u00e1ku, kter\u00fd dok\u00e1\u017ee do zdiva vyhloubit otvory pro osazen\u00ed elektroinstala\u010dn\u00edch krabic. I zde svou pr\u00e1ci odvedou karbidov\u00e9 pl\u00e1tky osazen\u00e9 po obvodu korunky, kter\u00e1 je p\u0159i vrt\u00e1n\u00ed vyst\u0159ed\u011bna v\u00eddiov\u00fdm vrt\u00e1kem.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Bez citu to nejde<br>Speci\u00e1ln\u00ed vrt\u00e1k je pot\u0159ebn\u00fd p\u0159i vrt\u00e1n\u00ed obklada\u010dek a dla\u017edic z keramiky, porcel\u00e1nu \u010di jin\u00fdch materi\u00e1l\u016f, kter\u00e9 zvyknou p\u0159i pr\u00e1ci \u010dasto praskat. Zde v\u017edy plat\u00ed pravidlo, \u017ee p\u0159\u00edklep je ne\u017e\u00e1douc\u00ed a s\u00e1hnout je t\u0159eba po vrt\u00e1ku, kter\u00fd m\u00e1 speci\u00e1ln\u011b brou\u0161en\u00e9 ost\u0159\u00ed tak, aby odeb\u00edralo materi\u00e1l ostrou hranou. S vrt\u00e1kem na zdivo u t\u011bchto materi\u00e1l\u016f nepochod\u00edte, proto\u017ee jeho ost\u0159\u00ed nen\u00ed na n\u00e1b\u011bhov\u00e9 hran\u011b. K z\u00e1b\u011bru se v\u00e1m ho p\u0159emluvit neporad\u00ed.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>P\u0159i vrt\u00e1n\u00ed d\u011br si mnoz\u00ed st\u011b\u017euj\u00ed na to, \u017ee je vrta\u010dka p\u0159islab\u00e1 a vrt\u00e1k p\u0159itup\u00fd. \u010casto je v\u0161ak za ne\u00fasp\u011bchem nevhodn\u00fd v\u00fdb\u011br vrt\u00e1ku. M\u016f\u017ee se v\u00e1m zd\u00e1t, \u017ee v\u0161echny jsou stejn\u00e9 a nemaj\u00ed se v \u010dem li\u0161it. Opak je v\u0161ak pravdou. Ka\u017ed\u00fd z nich je navr\u017een tak, aby podal co nejlep\u0161\u00ed v\u00fdkon v materi\u00e1lu, pro [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":2355,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_sitemap_exclude":false,"_sitemap_priority":"","_sitemap_frequency":"","tdm_status":"","tdm_grid_status":"","footnotes":""},"categories":[12],"tags":[],"class_list":["post-2364","post","type-post","status-publish","format-standard","has-post-thumbnail","category-prumysl"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Jak vybrat spr\u00e1vn\u00fd vrt\u00e1k - e Pr\u016fmysl<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/e-prumysl.cz\/?p=2364\" \/>\n<meta property=\"og:locale\" content=\"cs_CZ\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Jak vybrat spr\u00e1vn\u00fd vrt\u00e1k - e Pr\u016fmysl\" \/>\n<meta property=\"og:description\" content=\"P\u0159i vrt\u00e1n\u00ed d\u011br si mnoz\u00ed st\u011b\u017euj\u00ed na to, \u017ee je vrta\u010dka p\u0159islab\u00e1 a vrt\u00e1k p\u0159itup\u00fd. \u010casto je v\u0161ak za ne\u00fasp\u011bchem nevhodn\u00fd v\u00fdb\u011br vrt\u00e1ku. M\u016f\u017ee se v\u00e1m zd\u00e1t, \u017ee v\u0161echny jsou stejn\u00e9 a nemaj\u00ed se v \u010dem li\u0161it. Opak je v\u0161ak pravdou. 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