[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.gtasa.cz\/jak-se-vyrabi-polyetylenove-lode\/#Article","mainEntityOfPage":"https:\/\/www.gtasa.cz\/jak-se-vyrabi-polyetylenove-lode\/","headline":"Jak se vyr\u00e1b\u00ed polyetylenov\u00e9 lod\u011b?","name":"Jak se vyr\u00e1b\u00ed polyetylenov\u00e9 lod\u011b?","description":"Polyetylenov\u00e1 plavidla se vyr\u00e1b\u00ed dv\u011bma odli\u0161n\u00fdmi zp\u016fsoby. Bu\u010f je to rota\u010dn\u00ed natavov\u00e1n\u00ed, anebo tzv. vyfukov\u00e1n\u00ed plastu. K ob\u011bma metod\u00e1m v\u00fdroby jsou zapot\u0159eb\u00ed kovov\u00e1 (ocelov\u00e1) speci\u00e1ln\u00ed kopyta. Vyfukov\u00e1n\u00ed plastu V\u00fdroba spo\u010d\u00edv\u00e1 v tom, \u017ee se polotovar, v tomto p\u0159\u00edpad\u011b roztaven\u00fd plastov\u00fd polyetylenov\u00fd tubus, vh\u00e1n\u00ed tryskou na kopyto. Jedn\u00e1 se o pouh\u00e9 zlomky sekund, kdy se tekouc\u00ed plast v ob\u0159\u00edm v\u00fdkonn\u00e9m","datePublished":"2017-12-23","dateModified":"2023-06-05","author":{"@type":"Person","@id":"https:\/\/www.gtasa.cz\/author\/#Person","name":"","url":"https:\/\/www.gtasa.cz\/author\/","identifier":1,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/91506ed60e31abe586276a3e1420719df081581a820344a28fa2034bb1a2fe22?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/91506ed60e31abe586276a3e1420719df081581a820344a28fa2034bb1a2fe22?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"gtasa.cz","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/www.gtasa.cz\/wp-content\/uploads\/img_a308288_w2393_t1519408914.jpg","url":"https:\/\/www.gtasa.cz\/wp-content\/uploads\/img_a308288_w2393_t1519408914.jpg","height":0,"width":0},"url":"https:\/\/www.gtasa.cz\/jak-se-vyrabi-polyetylenove-lode\/","about":["Nakupov\u00e1n\u00ed"],"wordCount":513,"articleBody":"\tPolyetylenov\u00e1 plavidla se vyr\u00e1b\u00ed dv\u011bma odli\u0161n\u00fdmi zp\u016fsoby. Bu\u010f je to rota\u010dn\u00ed natavov\u00e1n\u00ed, anebo tzv. vyfukov\u00e1n\u00ed plastu. K ob\u011bma metod\u00e1m v\u00fdroby jsou zapot\u0159eb\u00ed kovov\u00e1 (ocelov\u00e1) speci\u00e1ln\u00ed kopyta.\t\tVyfukov\u00e1n\u00ed plastu\tV\u00fdroba spo\u010d\u00edv\u00e1 v tom, \u017ee se polotovar, v tomto p\u0159\u00edpad\u011b roztaven\u00fd plastov\u00fd polyetylenov\u00fd tubus, vh\u00e1n\u00ed tryskou na kopyto. Jedn\u00e1 se o pouh\u00e9 zlomky sekund, kdy se tekouc\u00ed plast v ob\u0159\u00edm v\u00fdkonn\u00e9m lisu vm\u00e1\u010dkne mezi dv\u011b poloviny formy (kopyta). Sou\u010dasn\u011b s t\u00edm se v m\u00edst\u011b vst\u0159iku plastu tlakov\u00fdm vzduchem pomoc\u00ed speci\u00e1ln\u00edho n\u00e1stroje p\u0159itiskne v\u00fdlisek k form\u011b, aby m\u011bl po\u017eadovan\u00fd tvar. Cel\u00fd proces lisov\u00e1n\u00ed a vst\u0159ikov\u00e1n\u00ed sou\u010dasn\u011b prob\u00edh\u00e1 velice rychle, opravdu jde o zlomky sekund. Nakonec se plastov\u00fd d\u00edl ochlad\u00ed a po 7 minut\u00e1ch je v\u00fdlisek hotov.\t\tDva nejv\u00fdznamn\u011bj\u0161\u00ed v\u00fdrobci polyetylenov\u00fdch k\u00e1no\u00ed byli Prion and Eskimo a Noah. Firma Noah zhotovila v\u016fbec prvn\u00ed kajak z polyetylenu a byla nejv\u011bt\u0161\u00edm v\u00fdrobcem t\u011bchto lod\u00ed v USA, dokud ji nezachv\u00e1til po\u017e\u00e1r.\tZna\u010dnou nev\u00fdhodou t\u00e9to v\u00fdroby je ov\u0161em samotn\u00e9 za\u0159\u00edzen\u00ed, kter\u00e9 sah\u00e1 a\u017e k milion\u016fm dolar\u016f. Aby se za\u0159\u00edzen\u00ed vyplatilo, mus\u00ed v\u00fdrobn\u00ed linka produkovat st\u00e1le stovky v\u00fdrobk\u016f, jejich\u017e cena samoz\u0159ejm\u011b odpov\u00edd\u00e1 pr\u00e1v\u011b t\u011bmto n\u00e1klad\u016fm. Pokud by nebylo v\u00fdrobn\u00ed za\u0159\u00edzen\u00ed tak n\u00e1kladn\u00e9, mohli bychom si jednodu\u0161e zakoupit polyetylenovou k\u00e1noe t\u0159eba za 500 korun (cena samotn\u00e9ho plastu je v podstat\u011b zanedbateln\u00e1).\tRota\u010dn\u00ed natavov\u00e1n\u00ed\tTo se vyplat\u00ed zejm\u00e9na tehdy, m\u011bn\u00ed-li se \u010dasto tvar v\u00fdlisk\u016f. Samotn\u00fd cyklus v\u00fdroby je sice pon\u011bkud pomalej\u0161\u00ed ne\u017e u vyfukov\u00e1n\u00ed, ale po\u0159\u00edzen\u00ed formy p\u0159ijde jen na 15 – 20 tis\u00edc dolar\u016f. Americk\u00e1 firma Noah pou\u017e\u00edv\u00e1 k v\u00fdrob\u011b i dal\u0161\u00ed tzv. p\u0159idru\u017een\u00e9 technologie a cena v\u00fdrobku se t\u00edm m\u016f\u017ee je\u0161t\u011b sn\u00ed\u017eit. Zna\u010dnou v\u00fdhodou rota\u010dn\u00edho natavov\u00e1n\u00ed je, \u017ee si m\u016f\u017ee v\u00fdrobn\u00ed za\u0159\u00edzen\u00ed vyrobit t\u00e9m\u011b\u0159 ka\u017ed\u00e1, alespo\u0148 trochu \u0161ikovn\u00e1 firma. Proces rota\u010dn\u00edho nataven\u00ed lze je\u0161t\u011b doplnit ionizac\u00ed, \u010d\u00edm\u017e vznik\u00e1 kvalitn\u011bj\u0161\u00ed plastov\u00fd v\u00fdlisek.\t\tSamotn\u00e9 natavov\u00e1n\u00ed prob\u00edh\u00e1 tak, \u017ee se d\u011blen\u00e1 forma vypln\u00ed polyetylenem ve form\u011b sypk\u00e9ho pr\u00e1\u0161ku (jak\u00e9si mou\u010dky), forma se vlo\u017e\u00ed do zap\u00e9kac\u00ed pece a pod spr\u00e1vnou teplotou se uvnit\u0159 pece forma ot\u00e1\u010d\u00ed (rotuje). Nakonec se po ur\u010dit\u00e9 dob\u011b forma z pece vyjme i s v\u00fdliskem a zchlad\u00ed se. Vznik\u00e1 tak v\u00fdrobek, kter\u00fd se zap\u00e9kal z roztaven\u00e9ho pr\u00e1\u0161ku p\u0159\u00edmo na st\u011bn\u00e1ch formy, a cel\u00fd proces v\u00fdroby lodi trv\u00e1 p\u0159ibli\u017en\u011b t\u0159icet minut. Tak\u017ee sice del\u0161\u00ed v\u00fdroba, zato mnohem, a\u017e n\u011bkolikan\u00e1sobn\u011b, levn\u011bj\u0161\u00ed.                                                                                                                                                                                                                                                                                                                                                                                        3.5\/5 - (8 votes)        "},{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Jak se vyr\u00e1b\u00ed polyetylenov\u00e9 lod\u011b?","item":"https:\/\/www.gtasa.cz\/jak-se-vyrabi-polyetylenove-lode\/#breadcrumbitem"}]}]