{"id":14158,"date":"2025-05-07T09:45:04","date_gmt":"2025-05-07T07:45:04","guid":{"rendered":"https:\/\/sw.fst.com\/magazine\/2025\/07\/novy-material-pro-tesneni-vrtaku-do-hornin\/"},"modified":"2025-07-23T17:28:43","modified_gmt":"2025-07-23T15:28:43","slug":"novy-material-pro-tesneni-vrtaku-do-hornin","status":"publish","type":"post","link":"https:\/\/sw.fst.com\/magazine\/cs\/2025\/05\/novy-material-pro-tesneni-vrtaku-do-hornin\/","title":{"rendered":"Nov\u00fd materi\u00e1l pro t\u011bsn\u011bn\u00ed vrt\u00e1k\u016f do hornin"},"content":{"rendered":"\n<p class=\"is-style-cnvs-paragraph-callout wp-block-paragraph\">Vedouc\u00ed st\u0159edisko Fluid Power Industry Lead Centre ve Schwalmstadtu vyvinulo pro z\u00e1kazn\u00edka Epiroc t\u011bsn\u011bn\u00ed bez PFAS \/ Testy prob\u011bhly \u00fasp\u011b\u0161n\u011b<\/p>\n\n<p class=\"wp-block-paragraph\">P\u0159ed v\u00edce ne\u017e rokem obdr\u017eela spole\u010dnost Freudenberg Sealing Technologies (FST) prvn\u00ed popt\u00e1vku od spole\u010dnosti Epiroc, kter\u00e1 vyr\u00e1b\u00ed mimo jin\u00e9 vrtac\u00ed za\u0159\u00edzen\u00ed pro tunelov\u00e1n\u00ed a stavebn\u00ed in\u017een\u00fdrstv\u00ed, na t\u011bsn\u011bn\u00ed bez obsahu PFAS pro vrt\u00e1ky do hornin. Skaln\u00ed vrt\u00e1ky se pou\u017e\u00edvaj\u00ed v podzem\u00ed k vrt\u00e1n\u00ed otvor\u016f pro v\u00fdbu\u0161n\u00e9 n\u00e1lo\u017ee. &#8222;T\u011bsn\u011bn\u00ed se d\u0159\u00edve vyr\u00e1b\u011bla z PTFE, proto\u017ee tento materi\u00e1l m\u00e1 vysokou odolnost v\u016f\u010di m\u00e9di\u00edm, n\u00edzk\u00e9 t\u0159en\u00ed a \u0161irok\u00fd teplotn\u00ed rozsah pou\u017eit\u00ed,&#8220; vysv\u011btluje Marco Sch\u00f6nw\u00e4lder.  <\/p>\n\n<p class=\"wp-block-paragraph\">Vrt\u00e1ky do kamene pracuj\u00ed ve vysokofrekven\u010dn\u00edm p\u00e1smu, pohybuj\u00ed se velmi rychle vp\u0159ed a vzad &#8211; a\u017e 140 Hz &#8211; a vykon\u00e1vaj\u00ed tak\u00e9 rota\u010dn\u00ed pohyb rychlost\u00ed 200 ot\u00e1\u010dek za minutu. &#8222;T\u011bsn\u011bn\u00ed jsou v podzem\u00ed vystavena drsn\u00fdm klimatick\u00fdm podm\u00ednk\u00e1m a p\u0159i provozu stroje mus\u00ed odol\u00e1vat extr\u00e9mn\u00edm podm\u00ednk\u00e1m, jako je teplota, tlak a vibrace,&#8220; \u0159\u00edk\u00e1 Sch\u00f6nw\u00e4lder. &#8222;Na z\u00e1klad\u011b parametr\u016f se nezd\u00e1lo, \u017ee by bylo mo\u017en\u00e9 vyrobit t\u011bsn\u011bn\u00ed z jin\u00e9ho materi\u00e1lu, nap\u0159\u00edklad z polyuretanu, kter\u00fd by tyto po\u017eadavky spl\u0148oval. Ale proto\u017ee spole\u010dnost Epiroc je jedn\u00edm z na\u0161ich velmi v\u00fdznamn\u00fdch z\u00e1kazn\u00edk\u016f, prost\u011b jsme to zkusili.&#8220;  <\/p>\n\n<p class=\"wp-block-paragraph\">V\u00fdvoj\u00e1\u0159i v\u00fdrobku se rozhodli otestovat relativn\u011b nov\u00fd materi\u00e1l 98AU30500, kter\u00fd neobsahuje PFAS. Prvn\u00ed prototypy byly vytvo\u0159eny a testov\u00e1ny spole\u010dnost\u00ed Epiroc na vlastn\u00edm zku\u0161ebn\u00edm poli. &#8222;Na\u0161e t\u011bsn\u011bn\u00ed snadno dos\u00e1hla zam\u00fd\u0161len\u00e9 \u017eivotnosti 1 000 hodin,&#8220; uv\u00e1d\u00ed Marco Sch\u00f6nw\u00e4lder. Spole\u010dnost Epiroc zah\u00e1jila testy se \u010dty\u0159mi t\u011bsn\u011bn\u00edmi r\u016fzn\u00fdch rozm\u011br\u016f a nyn\u00ed si u firmy Xpress objednala dal\u0161\u00edch 12 rozm\u011br\u016f.   <\/p>\n\n<p class=\"wp-block-paragraph\">Potenci\u00e1l je p\u0159ibli\u017en\u011b 110 000 t\u011bsn\u011bn\u00ed ro\u010dn\u011b pro r\u016fzn\u00e9 modely vrt\u00e1k\u016f na sk\u00e1ly. Pro v\u00fdrobu nov\u00fdch vrt\u00e1k\u016f do kamene je zapot\u0159eb\u00ed 10 000 t\u011bsn\u011bn\u00ed a 100 000 t\u011bsn\u011bn\u00ed jako n\u00e1hradn\u00ed d\u00edly. &#8222;Vzhledem k extr\u00e9mn\u00edm n\u00e1rok\u016fm se u skaln\u00edch vrt\u00e1k\u016f prov\u00e1d\u00ed pravideln\u00fd servis po 1 000 pracovn\u00edch hodin\u00e1ch a tak\u00e9 v\u00fdm\u011bna t\u011bsn\u011bn\u00ed,&#8220; \u0159\u00edk\u00e1 Marco Sch\u00f6nw\u00e4lder.  <\/p>\n<div class=\"pld-like-dislike-wrap pld-template-1\">\r\n    <div class=\"pld-like-wrap  pld-common-wrap\">\r\n    <a href=\"javascript:void(0)\" class=\"pld-like-trigger pld-like-dislike-trigger  \" title=\"\" data-post-id=\"14158\" data-trigger-type=\"like\" data-restriction=\"ip\" data-already-liked=\"0\">\r\n                        <i class=\"fas fa-thumbs-up\"><\/i>\r\n                <\/a>\r\n    <span class=\"pld-like-count-wrap pld-count-wrap\">    <\/span>\r\n<\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>Vedouc\u00ed st\u0159edisko Fluid Power Industry Lead Centre ve Schwalmstadtu vyvinulo pro z\u00e1kazn\u00edka Epiroc t\u011bsn\u011bn\u00ed bez PFAS \/ Testy prob\u011bhly \u00fasp\u011b\u0161n\u011b P\u0159ed v\u00edce ne\u017e rokem obdr\u017eela spole\u010dnost Freudenberg Sealing Technologies (FST)&hellip;<\/p>\n","protected":false},"author":5,"featured_media":12216,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[1108,1296],"tags":[],"powerkit_post_featured":[],"class_list":["post-14158","post","type-post","status-publish","format-standard","has-post-thumbnail","category-schwalmstadt-cs","category-zakaznicke-vrstvy"],"_links":{"self":[{"href":"https:\/\/sw.fst.com\/magazine\/cs\/wp-json\/wp\/v2\/posts\/14158","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sw.fst.com\/magazine\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sw.fst.com\/magazine\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sw.fst.com\/magazine\/cs\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/sw.fst.com\/magazine\/cs\/wp-json\/wp\/v2\/comments?post=14158"}],"version-history":[{"count":1,"href":"https:\/\/sw.fst.com\/magazine\/cs\/wp-json\/wp\/v2\/posts\/14158\/revisions"}],"predecessor-version":[{"id":14159,"href":"https:\/\/sw.fst.com\/magazine\/cs\/wp-json\/wp\/v2\/posts\/14158\/revisions\/14159"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sw.fst.com\/magazine\/cs\/wp-json\/wp\/v2\/media\/12216"}],"wp:attachment":[{"href":"https:\/\/sw.fst.com\/magazine\/cs\/wp-json\/wp\/v2\/media?parent=14158"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sw.fst.com\/magazine\/cs\/wp-json\/wp\/v2\/categories?post=14158"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sw.fst.com\/magazine\/cs\/wp-json\/wp\/v2\/tags?post=14158"},{"taxonomy":"powerkit_post_featured","embeddable":true,"href":"https:\/\/sw.fst.com\/magazine\/cs\/wp-json\/wp\/v2\/powerkit_post_featured?post=14158"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}