{"id":14298,"date":"2025-05-07T09:45:04","date_gmt":"2025-05-07T07:45:04","guid":{"rendered":"https:\/\/sw.fst.com\/magazine\/2025\/07\/uus-materjal-kivipuuride-tihendite-jaoks\/"},"modified":"2025-07-23T17:29:08","modified_gmt":"2025-07-23T15:29:08","slug":"uus-materjal-kivipuuride-tihendite-jaoks","status":"publish","type":"post","link":"https:\/\/sw.fst.com\/magazine\/et\/2025\/05\/uus-materjal-kivipuuride-tihendite-jaoks\/","title":{"rendered":"Uus materjal kivipuuride tihendite jaoks"},"content":{"rendered":"\n<p class=\"is-style-cnvs-paragraph-callout wp-block-paragraph\">Schwalmstadtis asuv Fluid Power Industry Lead Centre on arendanud PFAS-vabad tihendid kliendi Epiroc jaoks \/ Testid l\u00e4bitud<\/p>\n\n<p class=\"wp-block-paragraph\">Veidi \u00fcle aasta tagasi sai Freudenberg Sealing Technologies (FST) oma esimese p\u00e4ringu Epirocilt &#8211; ettev\u00f5te toodab muu hulgas puurimisseadmeid tunnelite ja tsiviilehituse jaoks &#8211; PFAS-vabade tihendite kohta kivipuuridele. Kaljupuurid on m\u00f5eldud maa all l\u00f5hkelaengute puurimiseks. &#8220;Varem olid tihendid valmistatud PTFE-st, sest sellel materjalil on k\u00f5rge meediakindlus, madal h\u00f5\u00f5rdumine ja lai temperatuurivahemik,&#8221; selgitab Marco Sch\u00f6nw\u00e4lder.  <\/p>\n\n<p class=\"wp-block-paragraph\">Kivipuurid t\u00f6\u00f6tavad k\u00f5rgsagedusvahemikus, nad liiguvad v\u00e4ga kiiresti edasi ja tagasi &#8211; kuni 140 hertsi &#8211; ning teevad ka p\u00f6\u00f6rlemisliigutusi 200 p\u00f6\u00f6ret minutis. &#8220;Tihendid puutuvad maa all kokku karmi kliimaga ja peavad masina t\u00f6\u00f6tamise ajal vastu pidama \u00e4\u00e4rmuslikele tingimustele, nagu temperatuur, r\u00f5hk ja vibratsioon,&#8221; \u00fctleb Sch\u00f6nw\u00e4lder. &#8220;Parameetrite p\u00f5hjal ei tundunud, et oleks v\u00f5imalik valmistada tihendeid m\u00f5nest muust materjalist, n\u00e4iteks pol\u00fcuretaanist, mis vastaks nendele n\u00f5uetele. Aga kuna Epiroc on \u00fcks meie v\u00e4ga olulistest klientidest, siis me lihtsalt proovisime seda.&#8221;  <\/p>\n\n<p class=\"wp-block-paragraph\">Tootearendajad otsustasid katsetada suhteliselt uut ja PFAS-vaba materjali 98AU30500. Esimesed protot\u00fc\u00fcbid l\u00f5i ja katsetas Epiroc ettev\u00f5tte enda katsev\u00e4ljal. &#8220;Meie tihendid saavutasid h\u00f5lpsasti kavandatud 1000-tunnise kasutusaja,&#8221; teatab Marco Sch\u00f6nw\u00e4lder. Epiroc alustas teste nelja erineva suurusega tihendiga ja on n\u00fc\u00fcd tellinud Xpressilt veel 12 m\u00f5\u00f5tu.   <\/p>\n\n<p class=\"wp-block-paragraph\">Potentsiaal on ligikaudu 110 000 tihendit aastas erinevate kivipuurimismudelite puhul. 10 000 tihendit on vaja uute kivipuuride tootmiseks ja 100 000 tihendit varuosadena. &#8220;\u00c4\u00e4rmuslike n\u00f5uete t\u00f5ttu hooldatakse kivipuurid regulaarselt p\u00e4rast 1000 t\u00f6\u00f6tundi ja vahetatakse ka tihendid v\u00e4lja,&#8221; \u00fctleb 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=\"14298\" 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>Schwalmstadtis asuv Fluid Power Industry Lead Centre on arendanud PFAS-vabad tihendid kliendi Epiroc jaoks \/ Testid l\u00e4bitud Veidi \u00fcle aasta tagasi sai Freudenberg Sealing Technologies (FST) oma esimese p\u00e4ringu Epirocilt&hellip;<\/p>\n","protected":false},"author":5,"featured_media":12218,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[1297,1107],"tags":[],"powerkit_post_featured":[],"class_list":["post-14298","post","type-post","status-publish","format-standard","has-post-thumbnail","category-kliendikihid","category-schwalmstadt-et"],"_links":{"self":[{"href":"https:\/\/sw.fst.com\/magazine\/et\/wp-json\/wp\/v2\/posts\/14298","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sw.fst.com\/magazine\/et\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sw.fst.com\/magazine\/et\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sw.fst.com\/magazine\/et\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/sw.fst.com\/magazine\/et\/wp-json\/wp\/v2\/comments?post=14298"}],"version-history":[{"count":1,"href":"https:\/\/sw.fst.com\/magazine\/et\/wp-json\/wp\/v2\/posts\/14298\/revisions"}],"predecessor-version":[{"id":14299,"href":"https:\/\/sw.fst.com\/magazine\/et\/wp-json\/wp\/v2\/posts\/14298\/revisions\/14299"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sw.fst.com\/magazine\/et\/wp-json\/wp\/v2\/media\/12218"}],"wp:attachment":[{"href":"https:\/\/sw.fst.com\/magazine\/et\/wp-json\/wp\/v2\/media?parent=14298"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sw.fst.com\/magazine\/et\/wp-json\/wp\/v2\/categories?post=14298"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sw.fst.com\/magazine\/et\/wp-json\/wp\/v2\/tags?post=14298"},{"taxonomy":"powerkit_post_featured","embeddable":true,"href":"https:\/\/sw.fst.com\/magazine\/et\/wp-json\/wp\/v2\/powerkit_post_featured?post=14298"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}