Lawv tuav ua ke cov pob txha, qhov chaw ntawm lub dav hlau thiab F1 tsheb, yog li cas ho tsis tsheb kauj vab thiab?
Kev nkag siab zoo txog lub peev xwm ntawm carbon fiber tau ua rau Stefan Schmolke npau suav txog cov bolts no dhau peb xyoos dhau los.
'Carbon fiber ntau muaj peev xwm ua tau ntau yam dhau qhov uas tam sim no tau siv, Kuv ntseeg, 'hais tias Schmolke, tus tsim ntawm eponymous carbon fiber hom.
'Yog li kuv xav pom deb npaum li cas peb tuaj yeem thawb khoom. Thawj cov qauv uas kuv tau sim ntawm kuv tus kheej lub tsheb kauj vab, tab sis tom qab peb tau nailed qhov kev tsim cov bolts zoo ib yam, peb pom lawv tau cog lus deb dhau ntawm kev lag luam tsheb kauj vab.'
Lawv daim ntawv thov tam sim no txuas mus rau hauv aerospace thiab automotive tej yaam num, qhov twg lawv qhov hnyav ntawm 40% tshaj txhuas bolts muaj qhov zoo dua.
Vim lawv cov muaj pes tsawg leeg, cov bolts nthuav me ntsis thaum lawv nruj kom lawv ua tiav tib lub clamping nro nrog tsawg lub zog thiab tsis tshua muaj wiggle xoob.
Qhov no tau ua pov thawj tshwj xeeb hauv kev siv tshuaj kho mob, qhov twg cov hlau phaj tuaj yeem pinned rau cov pob txha raug mob kom ruaj ntseg thiab ntev dua. Raws li Schmolke hais tias, 'Kev phais tsawg dua yog qhov zoo.'
Cov bolts yog ua los ntawm Hexcel's intermediate-modulus EM7 carbon fiber, uas yog kwv yees piv rau Toray T700, vim tias ntau dua-modulus fibers tsis hloov pauv txaus rau yuav ua li cas cov bolts raug tsim.
'Txoj kev uas lawv tau ua yog qhov ntse ntse, 'Schmolke hais. 'Cov fibers yog orientated ntawm 0 ° thiab ua raws li cov kauv ntawm cov xov, uas ua rau lub bolt ze tsis yooj yim sua kom sawb.
Txawm li cas los xij, kev taw qhia cov fibers yog qhov nyuaj thiab cov pwm yog qhov nyuaj heev, yog li ntawd lawv nyob ib puag ncig £ 6 ib lub bolt.'
Cov fibers ces rhuab thiab nias raws li PEEK matrix ntxiv. PEEK yog ib qho thermoplastic composite uas Schmolke piav qhia yog qhov zoo dua los siv dua li epoxy resin.
'Koj tsis tuaj yeem ua kom sov epoxy zoo li koj tuaj yeem PEEK, uas yog qhov tseem ceeb kom tau txais cov bolts ntawm qhov zoo, 'nws hais.
Yog tias qhov hnyav weenies salivating ntawm lub sijhawm los chais ob peb grams ntxiv ntawm lawv lub tsheb kauj vab, Schmolke tau taw qhia sai sai tias tam sim no cov pa roj carbon bolts tsuas yog siv rau ntawm lub tsheb kauj vab xwb.
Hais txog lub zog
'Qhov xav tau torque rau clamp handlebars nyob rau hauv stems thiab seatposts nyob rau hauv lub rooj zaum raj yog siab dhau - nws txaus ntshai tawg lub bolts - tab sis lawv zoo meej rau siv nyob rau hauv derailleurs, headsets thiab nyob rau hauv lub raj mis tawb, 'nws hais thiab, puas yog tus tsim kho tshiab, pom qhov kev daws teeb meem kom tso cai siv cov bolts ntau dua.
'Kuv tau pom muaj peev xwm rau peb tsim peb tus kheej cov khoom tshwj xeeb rau cov bolts, uas yuav qhib qhov rooj rau qee qhov hnyav tiag tiag.'
Raws li nws sawv, hloov tag nrho cov hlau nplaum rau cov bolts yuav tsis txuag ntau tshaj 20g. Txawm li cas los xij, Schmolke hais tias lawv tseem nrov heev.
'Kuv yeej tsis xav tias cov neeg caij tsheb kauj vab xav yuav cov ntsia hlau kim li no kom txuag tau ob peb grams xwb. Pom tseeb kuv tau kwv yees qhov ntev ntawm cov neeg caij tsheb kauj vab yuav mus!'
