{"id":14394,"date":"2024-06-05T11:34:21","date_gmt":"2024-06-05T15:34:21","guid":{"rendered":"https:\/\/tuttopavimenti.com\/?p=14394"},"modified":"2024-06-05T11:34:21","modified_gmt":"2024-06-05T15:34:21","slug":"elektrotechnika-mechatronika-26-41-m-01","status":"publish","type":"post","link":"https:\/\/tuttopavimenti.com\/es\/elektrotechnika-mechatronika-26-41-m-01\/","title":{"rendered":"Elektrotechnika – Mechatronika 26-41-M\/01"},"content":{"rendered":"

\"Bosch<\/p>\n

Bosch aku vrta\u010dka je tak\u00e9 vybavena mnoha bezpe\u010dnostn\u00edmi funkcemi, jako je nap\u0159\u00edklad ochrana proti p\u0159et\u00ed\u017een\u00ed motoru, co\u017e zaji\u0161\u0165uje, \u017ee n\u00e1stroj nezni\u010d\u00ed motor p\u0159i p\u0159et\u00ed\u017een\u00ed. Vrta\u010dky zna\u010dky Bosch se stanou Va\u0161\u00edm spolehliv\u00fdm pomocn\u00edkem. Pokud hled\u00e1te spolehlivou aku vrta\u010dku, kter\u00e1 v\u00e1m pom\u016f\u017ee vy\u0159e\u0161it va\u0161e \u00fakoly, m\u016f\u017eete si b\u00fdt jist\u00ed, \u017ee jak aku vrta\u010dka Hilti, tak aku vrta\u010dka Bosch profi jsou skv\u011blou volbou. Toho se sna\u017e\u00edme vyu\u017e\u00edt my a pt\u00e1me se firem, jak by si p\u0159edstavovaly, \u017ee by m\u011bl vypadat ide\u00e1ln\u00ed absolvent, jak\u00e1 cesta k takov\u00e9mu absolventovi vede. Tedy, \u017ee jeho velikost I1 se b\u011bhem sva\u0159ov\u00e1n\u00ed nem\u011bn\u00ed a z\u016fst\u00e1v\u00e1 na hodnot\u011b nastaven\u00e9 sv\u00e1\u0159e\u010dem. Z\u00e1kladn\u00ed sva\u0159ovac\u00ed proud I1 je nastaven sv\u00e1\u0159e\u010dem na po\u017eadovanou hodnotu. Dosud jsme p\u0159edpokl\u00e1dali, \u017ee sva\u0159ovac\u00ed proud (a\u0165 u\u017e DC \u010di efektivn\u00ed hodnota AC) m\u00e1 konstantn\u00ed pr\u016fb\u011bh. Proud I2 zajist\u00ed ionizaci prost\u0159ed\u00ed a tedy “podr\u017een\u00ed” ho\u0159\u00edc\u00edho oblouku, ale nesta\u010d\u00ed k vytvo\u0159en\u00ed tavn\u00e9 l\u00e1zn\u011b a materi\u00e1l se t\u00edm ochlazuje. Za b\u011b\u017en\u00e9ho p\u016fsoben\u00ed atmosf\u00e9rick\u00e9ho \u010di vodn\u00edho prost\u0159ed\u00ed se s koroz\u00ed setkat jen velmi vyj\u00edme\u010dn\u011b. Provedeme pro V\u00e1s pre-test, post-test \u010di pro V\u00e1s uspo\u0159\u00e1d\u00e1me focus groups se zku\u0161en\u00fdm moder\u00e1torem. Pak mluv\u00edme o tzv. pulsn\u00edm sva\u0159ov\u00e1n\u00ed \u010di sva\u0159ov\u00e1n\u00ed v pulsu.<\/p>\n

\"Zobrazit V z\u00e1vislosti na frekvenci st\u0159\u00edd\u00e1n\u00ed jednotliv\u00fdch f\u00e1z\u00ed I1 a I2 mluv\u00edme o b\u011b\u017en\u00e9m pulsu (0,25 – 25 Hz), nebo o vysokorychlostn\u00edm pulsu (20 – 600 Hz). Zjednodu\u0161en\u011b m\u016f\u017eeme \u0159\u00edci, \u017ee periodicky doch\u00e1z\u00ed ke st\u0159\u00edd\u00e1n\u00ed f\u00e1ze \u010di\u0161t\u011bn\u00ed a f\u00e1ze sva\u0159ov\u00e1n\u00ed. Ve druh\u00e9 f\u00e1zi je polarita obr\u00e1cen\u00e1, wolframov\u00e1 elektroda je p\u0159ipojena na M\u00cdNUS a doch\u00e1z\u00ed k jej\u00edmu \u010d\u00e1ste\u010dn\u00e9mu ochlazen\u00ed a z\u00e1rove\u0148 k v\u011bt\u0161\u00edmu nataven\u00ed z\u00e1kladn\u00edho materi\u00e1lu. M\u00cdNUS (-) p\u00f3l. St\u0159\u00eddav\u00fd proud n\u00e1m umo\u017en\u00ed vyu\u017e\u00edt v\u00fdhod jak p\u0159\u00edm\u00e9 tak nep\u0159\u00edm\u00e9 polarity z\u00e1rove\u0148. Pozn\u00e1mka: Jak jsme ji\u017e uvedli v na\u0161em \u010dl\u00e1nku METODA TIG – DRUHY ZAPALOV\u00c1N\u00cd OBLOUKU, mus\u00ed b\u00fdt TIG AC sv\u00e1\u0159e\u010dky v\u017edy vybaveny bezdotykov\u00fdm (HF) zapalov\u00e1n\u00edm oblouku. \u00dadaje poskytovan\u00e9 v textov\u00e9 podob\u011b mus\u00ed b\u00fdt \u010diteln\u00e9. Nebude-li n\u00e1vrh na z\u00e1pis pod\u00e1n v t\u00e9to lh\u016ft\u011b, spr\u00e1va sv\u011b\u0159ensk\u00e9ho fondu zanikne. \u010ctvrt\u00e9 aktualizovan\u00e9 vyd\u00e1n\u00ed t\u00e9to u\u010debnice p\u0159esahuje r\u00e1mec osnov pro z\u00e1kladn\u00ed kurzy. Obsah u\u010debnice je p\u0159izp\u016fsoben\u00fd platn\u00fdm osnov\u00e1m pro z\u00e1kladn\u00ed kurzy dle “P\u0159edpis\u016f pro z\u00e1kladn\u00ed zkou\u0161ky sv\u00e1\u0159e\u010d\u016f” – \u010cSN 05 0705 (revidovan\u00e1 norma) a technick\u00fdm pravidl\u016fm, kter\u00e9 vydala \u010cesk\u00e1 sv\u00e1\u0159e\u010dsk\u00e1 spole\u010dnost ANB.<\/p>\n

Lze ji tak\u00e9 vyu\u017e\u00edt pro rekvalifika\u010dn\u00ed kurzy sva\u0159ov\u00e1n\u00ed. Reduk\u010dn\u00ed pouzdro s ku\u017eelovou stopkou MORSE a vnit\u0159n\u00edm up\u00ednac\u00edm \u010dty\u0159hranem 4×18 241253 pou\u017eit\u00ed pro up\u00edn\u00e1n\u00ed n\u00e1stroj\u016f se \u010dty\u0159hrannou stopkou v\u2026 Prim\u00e1rn\u00ed pou\u017eit\u00ed CNC obr\u00e1b\u011bn\u00ed je u kov\u016f a kovov\u00fdch slitin. Zkratkou MIG\/MAG ozna\u010dujeme poloautomatick\u00e9 sva\u0159ov\u00e1n\u00ed kov\u016f v ochrann\u00e9 atmosf\u00e9\u0159e inertn\u00edho (MIG) nebo aktivn\u00edho (MAG) plynu. Zkratka MAG poch\u00e1z\u00ed z anglick\u00e9ho Metal Active Gas a ozna\u010duje tedy poloautomatick\u00e9 sva\u0159ov\u00e1n\u00ed kov\u016f v ochrann\u00e9 atmosf\u00e9\u0159e aktivn\u00edho plynu. U\u010debnice pro z\u00e1kladn\u00ed kurz sva\u0159ov\u00e1n\u00ed – obloukov\u00e9 sva\u0159ov\u00e1n\u00ed wolframovou elektrodou v inertn\u00edm plynu – metoda TIG, WIG, GTAW. A rozd\u00edl mezi MIG a MAG sva\u0159ov\u00e1n\u00edm je pr\u00e1v\u011b v pou\u017eit\u00e9m ochrann\u00e9m plynu. Je tedy lep\u0161\u00ed MIG nebo MAG? A jak\u00fd je mezi metodami MIG a MAG vlastn\u011b rozd\u00edl? D\u00e1 se MIG sv\u00e1\u0159e\u010dkou sva\u0159ovat MAG? M\u016f\u017eeme metodou MAG va\u0159it hlin\u00edk? St\u00e1le je v\u0161ak mo\u017en\u00e9 sva\u0159ovat hlin\u00edk metodou TIG stejnosm\u011brn\u00fdm proudem (naz\u00fdvanou<\/a> tak\u00e9 “DC”). Pulsn\u00ed sva\u0159ov\u00e1n\u00ed lze aplikovat jak na sva\u0159ov\u00e1n\u00ed stejnosm\u011brn\u00fdm proudem, tak na sva\u0159ov\u00e1n\u00ed st\u0159\u00eddav\u00fdm proudem. Ten lze samoz\u0159ejm\u011b nastavit jak s ohledem na pot\u0159ebnou d\u00e9lku odhozu, tak i pot\u0159ebn\u00fd \u00fahel odhozu fr\u00e9zovan\u00e9ho sn\u011bhu.<\/p>\n

\u2006Po\u2006st has \u180ebeen g\u2006en\u200aerat\u2006ed by G\u200aSA\u2005Content G\u180eenerat\u200bor\u202fDem\u180eover\u2006si\ufeffon!<\/p>\n

Sn\u011b\u017en\u00e1 fr\u00e9za si porad\u00ed jak s \u010derstv\u011b napadan\u00fdm sn\u011bhem, tak sn\u011bhem zmrzl\u00fdm. Pojem dr\u00e1tov\u00e1 elektroda znamen\u00e1, \u017ee p\u0159\u00eddavn\u00fd materi\u00e1l, kter\u00fd je zpravidla navinut na c\u00edvce a pod\u00e1v\u00e1n bowdenem v ho\u0159\u00e1ku do m\u00edsta sva\u0159ov\u00e1n\u00ed, tvo\u0159\u00ed jednu elektrodu ho\u0159\u00edc\u00edho oblouku. Druhou elektrodu tvo\u0159\u00ed sva\u0159ovan\u00fd materi\u00e1l, kter\u00fd je ke sv\u00e1\u0159e\u010dce p\u0159ipojen pomoc\u00ed tzv. zemn\u00edc\u00ed sv\u011brky. Pokud bychom ho\u0159\u00e1k upnuli do ramena robotu, kter\u00fd ho\u0159\u00e1k povede a bude sv\u00e1\u0159e\u010dku ovl\u00e1dat, bude se jednat o automatick\u00e9 MIG\/MAG sva\u0159ov\u00e1n\u00ed<\/a>. Co znamen\u00e1 zkratka MIG\/MAG? Pokud si budeme to\u010dit c\u00edvkou s dr\u00e1tem sami a sami povedeme ho\u0159\u00e1k, bude se jednat o ru\u010dn\u00ed MIG\/MAG sva\u0159ov\u00e1n\u00ed. P\u0159i sva\u0159ov\u00e1n\u00ed TIG je t\u0159eba vz\u00edt v \u00favahu v\u00fd\u0161e popsan\u00e9 nev\u00fdhody nep\u0159\u00edm\u00e9 polarity. P\u0159i TIG sva\u0159ov\u00e1n\u00ed st\u0159\u00eddav\u00fdm (AC) proudem doch\u00e1z\u00ed k periodick\u00e9mu st\u0159\u00edd\u00e1n\u00ed polarity. Doch\u00e1z\u00ed k men\u0161\u00edmu prom\u00edsen\u00ed z\u00e1kladn\u00edho materi\u00e1lu, co\u017e p\u0159in\u00e1\u0161\u00ed v\u00fdhody p\u0159i sva\u0159ov\u00e1n\u00ed heterogenn\u00edch spoj\u016f. V\u00fdsledkem je men\u0161\u00ed tepeln\u00e9 ovlivn\u011bn\u00ed z\u00e1kladn\u00edho materi\u00e1lu. P\u0159i p\u0159ipojen\u00ed na PLUS doch\u00e1z\u00ed k \u010di\u0161t\u011bn\u00ed z\u00e1kladn\u00edho materi\u00e1lu od oxid\u016f, ale z\u00e1rove\u0148 je v\u00edce nam\u00e1h\u00e1na wolframov\u00e1 elektroda. Pom\u011br \u010di\u0161t\u011bn\u00ed\/sva\u0159ov\u00e1n\u00ed byl 50\/50. Tento pom\u011br m\u00e1 ale zbyte\u010dn\u011b velk\u00fd \u010dist\u00edc\u00ed \u00fa\u010dinek a doch\u00e1z\u00ed k velk\u00e9mu tepeln\u00e9mu nam\u00e1h\u00e1n\u00ed wolframov\u00e9 elektrody. Dal\u0161\u00ed nev\u00fdhodou je, \u017ee p\u0159i \u010dist\u00e9m CO2 je na oblouku dost vysok\u00e9 nap\u011bt\u00ed a z toho vypl\u00fdv\u00e1 velk\u00fd rozst\u0159ik. Th\u180eis da\u200bta has\u202f\u200abeen gener\u2006ated\u2001by GSA\tCon\u200bte\u180ent\u2000G\u200ben\u200berat\ufeffor\u2007\u200aDE\u2006MO.<\/i><\/p>","protected":false},"excerpt":{"rendered":"

Bosch aku vrta\u010dka je tak\u00e9 vybavena mnoha bezpe\u010dnostn\u00edmi funkcemi, jako je nap\u0159\u00edklad ochrana proti p\u0159et\u00ed\u017een\u00ed motoru, co\u017e zaji\u0161\u0165uje, \u017ee n\u00e1stroj nezni\u010d\u00ed motor p\u0159i p\u0159et\u00ed\u017een\u00ed. Vrta\u010dky zna\u010dky Bosch se stanou Va\u0161\u00edm spolehliv\u00fdm pomocn\u00edkem. Pokud hled\u00e1te spolehlivou aku vrta\u010dku, kter\u00e1 v\u00e1m pom\u016f\u017ee vy\u0159e\u0161it va\u0161e \u00fakoly, m\u016f\u017eete si b\u00fdt jist\u00ed, \u017ee jak aku vrta\u010dka Hilti, tak aku vrta\u010dka […]<\/p>","protected":false},"author":800,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[137],"tags":[1952],"class_list":["post-14394","post","type-post","status-publish","format-standard","hentry","category-business-customer-service","tag-aku-vrtacka"],"aioseo_notices":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/tuttopavimenti.com\/es\/wp-json\/wp\/v2\/posts\/14394","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tuttopavimenti.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tuttopavimenti.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tuttopavimenti.com\/es\/wp-json\/wp\/v2\/users\/800"}],"replies":[{"embeddable":true,"href":"https:\/\/tuttopavimenti.com\/es\/wp-json\/wp\/v2\/comments?post=14394"}],"version-history":[{"count":0,"href":"https:\/\/tuttopavimenti.com\/es\/wp-json\/wp\/v2\/posts\/14394\/revisions"}],"wp:attachment":[{"href":"https:\/\/tuttopavimenti.com\/es\/wp-json\/wp\/v2\/media?parent=14394"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tuttopavimenti.com\/es\/wp-json\/wp\/v2\/categories?post=14394"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tuttopavimenti.com\/es\/wp-json\/wp\/v2\/tags?post=14394"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}