Aluminium tej zaum yuav raug usurped los ntawm carbon raws li cov khoom siv ntawm kev xaiv tab sis nws tau rov qab los rau saum kawg
Aluminium txoj kev kav ntawm saum tsob ntoo caij tsheb kauj vab tau luv luv. Raws li cov khoom siv rau kev sib tw-yeej caij tsheb kauj vab, nws tsuas yog coj los ntawm cov hlau hauv xyoo 1990s, thiab thaum pib ntawm lub xyoo txhiab xyoo tshiab lub tide twb tau tig los ntawm carbon fiber. Marco Pantani yog tus txiv neej kawg los yeej Tour de France ntawm lub tsheb kauj vab txhuas - Bianchi Mega Pro XL - hauv xyoo 1998, thiab tom qab Spaniard Igor Astaloa yeej xyoo 2003 Txoj Kev Ntiaj Teb Championships nyob rau hauv Cannondale CAAD7, aluminium tsheb kauj vab sai sai ploj ntawm pro peloton. tag nrho.
Nws yuav zoo li tias txhuas (tshwj xeeb tshaj yog aluminium alloy) tau raug tshem tawm mus rau qhov pheej yig-thiab-zoo siab kawg ntawm txoj kev tsheb kauj vab kev lag luam, tsis tau ob peb lub tuam txhab tau txuas ntxiv ua qhov kawg, kev sib tw-npaj alloy txoj kev tsheb kauj vab, thiab lwm cov tuam txhab lag luam tseem rov qab los rau cov hlau ua lwm txoj hauv kev rau carbon.
Trek tsis ntev los no tau tso tawm Émonda ALR, qhov sib ntxiv ntawm cov khoom sib txuas rau ntau yam uas pib suav nrog nws cov tsheb kauj vab uas muaj zog tshaj plaws. BMC ib yam nkaus thiab tau tsim ib qho kev sib tw ntawm nws Tour-winning Teammachine (tseem hu ua ALR). Tshwj xeeb tau muaj S-Works ib tsab ntawm nws nrov txhuas Allez tsheb tuam rau qee lub sij hawm, uas muag ntawm ib tug whopping £ 7, 500 ua tiav nrog Dura-Ace Di2 pawg, thiab Cannondale txuas ntxiv kho nws cov kev txawj ntse nyob rau hauv lub alloy arena nrog lub community launch. CAAD12 los hloov nws qhov kev hwm CAAD10.
Second coming
Yog li vim li cas kev lag luam tsheb kauj vab dheev txaus siab rau cov hlau qub thaum nws muaj hi-tech dub fibers ua si nrog? Thomas McDonald ntawm BMC, ib hom tshuaj uas muaj keeb kwm muaj zog hauv kev lag luam txhuas, hais tias, 'Feem ntau, qhov peb tau pom nrog cov pa roj carbon monoxide yog nws nkag mus rau qee qhov nqi nkag nkag. Tus nqi ntawm lub thav duab txhais tau hais tias cov tsheb kauj vab tas li tau raug cuam tshuam [kom tau raws li tus nqi taw tes] thiab ua rau cov khw muag khoom tsis muaj kev ntseeg siab.'
Thaum ib zaug carbon tsheb kauj vab tau tshwj tseg rau qhov zoo thiab lub luj tshib, lawv tau nce zuj zus tuaj, tab sis vim tias txawm tias cov pa roj carbon thav duab pheej yig tshaj yog tsim nyog los tsim, cov hom tau siv cov log pheej yig thiab cov khoom siv rau khaws tag nrho tus nqi qis, uas tuaj yeem ua rau lub caij tsis zoo thiab thaum kawg tsis lees paub tag nrho cov txiaj ntsig ntawm cov khoom siv carbon.
Txawm tias cov aluminium thav duab zoo tshaj plaws yog qhov pheej yig los tsim thaum piv rau carbon fiber yog li, thaum lawv sib phim nrog cov khoom siv siab kawg, lub tsheb kauj vab hlau muaj peev xwm muaj peev xwm muab kev caij tsheb zoo tshaj plaws piv rau qis- kawg carbon tsheb tuam ntawm tus nqi sib xws.
'Kuv xav tias muaj ob peb lub npe uas tsis tau taug kev deb ntawm txhuas, uas ib txwm thawb thiab cov uas tseem muaj kev vam meej, ' McDonald ntxiv. Nws tsis hais ib lub npe, tab sis feem ntau yuav nyob rau sab saum toj ntawm nws daim ntawv teev npe yog Cannondale, arguably tus pov thawj hlob ntawm txhuas, raws li nws lub koob npe nrov ntawm haiv neeg-winning alloy tsheb kauj vab uas nqa lub npe CAAD (Cannondale Advanced Aluminium Design).
Cannondale tus thawj coj ua haujlwm laus, Chris Dodman, muab rau peb nws qhov kev xav vim li cas Cannondale tsis tau tso cov hlau mus tiag tiag: 'Tau muaj kev paub ntau yam hauv kev tsim, kuaj thiab tsim cov txhuas txhuas txij li xyoo 1980s peb ib txwm pom cov muaj peev xwm ntawm seem nyob rau hauv aluminium. Lwm cov tuam txhab lag luam yuav tau hloov tsom mus rau cov khoom sib txawv ntau dua li peb muaj, tab sis txhuas yog peb cov cuab yeej cuab tam thiab qhov ntawd yog tus tsav tsheb tseem ceeb ntawm no.' Neil Webb, tus tsim ntawm British tsheb kauj vab hom Bowman, piav qhia ntau txog cov txiaj ntsig: 'Bowman tau ploj mus rau hauv cov hlau, as opposed to composite route, vim hais tias ntawm qhov yooj yim tsim muaj. Peb thawj thav duab tau destined los ua ib qho uas tuaj yeem sib tw, tab sis tseem tuaj yeem siv tau tus nqi-ntse, yog li ntawd ncaws steel tawm ntawm lub rooj. Kev sib tw-qhov hnyav steel thav duab yog ua tau - tsuas yog - tab sis yog txwv tsis pub kim. Titanium muaj cov teeb meem zoo sib xws. Uas tshuav aluminium.
'Tom qab ntawd cov txheej txheem tsim tau sai dua,' nws ntxiv. 'Yog tias koj yuav tubing txaus rau peb lub thav duab, koj tuaj yeem tau txais peb qhov sib txawv prototypes ua tau sai thiab sim lawv txhua tus. Nrog cov pa roj carbon, koj yuav tsum tau tsim thiab ua peb cov pwm sib txawv (lossis tsawg kawg pwm hloov kho) ua ntej koj tuaj yeem pib ua koj cov qauv, uas yog kim heev thiab siv sij hawm ntau heev.'
95% aluminium
Aluminium yuav tso cai rau kev txhim kho sai thiab pheej yig dua ntawm cov thav ntawv, tab sis nws cov khoom yog dab tsi ua cov khoom siv? Alloys ntawm txhuas yog cais raws li wrought alloys thiab tuaj nyob rau hauv ib tug bewildering tooj ntawm precisely tswj sib tov nyob ntawm seb yam ntxwv koj xav tau los ntawm nws. Aluminium yog cov hlau tseem ceeb, feem ntau yog nyob ib ncig ntawm 95% los ntawm qhov hnyav, tab sis lwm cov khoom xyaw xws li silicon, hlau thiab tooj liab tau nquag ntxiv los tsim txhua qhov sib xyaw uas tau muab cais los ntawm tus lej, xws li 7005, lossis yog tias nws yog cov chaw tsim khoom tus kheej tsim. nws yuav nqa lawv lub npe raws li ib tug proprietary blend.
Ntau xyoo cov alloys tsim nyog tshaj plaws rau ntau yam tsheb kauj vab tau raug kho kom zoo rau lub ntsiab lus uas niaj hnub no koj yuav pom feem ntau ntawm txhuas qhov chaw, los ntawm cov raj mus rau hubs, los ntawm ib qho ntawm rau qib. Lawv tau raug xaiv rau lawv cov yam ntxwv ntawm ob qho tib si ntawm qhov lawv sawv ntawm kev tsim txom ntawm kev caij tsheb tab sis kuj yog dab tsi tau koom nrog hauv kev tsim cov khoom siv. Piv txwv li, nws puas yuav tsum tau forging, machining lossis vuam? Qee lub tuam txhab loj dua tau tsim lawv tus kheej cov alloys hauv kev sib zog ua kom zoo dua cov khoom uas yuav tsum tau ua kom haum rau lawv txoj kev tsim khoom, tshwj xeeb tshaj yog nyob rau hauv kev tshawb nrhiav kom txo cov phab ntsa thickness hauv tubing kom qhov hnyav qis thaum tswj lub zog, durability thiab caij zoo - ntawm ib nqi.
BMC, txawm li cas los xij, zoo li zoo siab los nrog cov khoom siv dav dav thiab hloov siab rau kev tsim cov duab raj los tsim cov yam ntxwv ntawm kev caij tsheb.'Kev lag luam jargon ib sab, feem ntau lub npe siv tib hom txhuas, ib yam li peb txhua tus khiav tawm tib hom carbon,' hais McDonald. 'Yog lawm, muaj qhov sib txawv me ntsis ntawm cov ntaub ntawv tab sis qhov ua tau zoo ntawm qhov peb tau kawm yog qhov kev ua lub raj ua tau ua rau muaj qhov sib txawv ntau dua li cov khoom siv uas peb siv, nyob rau hauv thaj tsam ntawm qib siab aluminium. Yog li qhov kev taw qhia peb tau coj nrog peb cov ncej hlau tshiab kawg - ALR Teammachine - yog mus rau mais ntxiv thiab siv qee cov qauv raj radical, txawm tias nws tsis yog qhov txiaj ntsig zoo tshaj plaws rau peb ua.'
Cannondale thov tias nws tau tsom mus rau qhov sib npaug ntawm lub raj tsim sab ntawm cov txheej txheem thaum tsim nws cov CAAD12 tshiab txhuas ncej. Dodman hais tias 'CAAD12 yog qhov tseem ceeb ntawm txoj hauv kev uas peb mus txog qhov tsim,' hais tias Dodman. 'Txoj kev lag luam tau tsim cov thav duab yog ua raws li cov txheej txheem zoo li lub tsev thaiv. Qhov kev sib piv kuv siv yog qhov no: yog tias koj tab tom npaj txoj kev los ntawm A mus rau B hla lub nroog koj paub, koj yuav txuas tag nrho cov khoom koj xav tau los tsim koj txoj kev, hos yog tias koj tsuas yog tso koj lub hom phiaj mus rau hauv ib qho. GPS niaj hnub koj yuav zoo li yuav tau txais txoj hauv kev zoo dua, suav nrog txhua qhov kev hloov pauv uas yuav cuam tshuam rau koj txoj kev taug. Nws yuav tsis yog txoj hauv kev uas koj yuav xaiv.'
Dab tsi Dodman hais txog yog qhov kev paub dhau los thiab kev paub tuaj yeem muaj txiaj ntsig zoo kawg, tab sis qee zaum koj tus yeeb ncuab phem tshaj plaws, tiv thaiv koj los ntawm kev txiav txim siab tiag tiag qhov kev xaiv yuav yog. Ib lub thav duab tshiab tag nrho qee zaum xav kom koj pov cov tsev qub qub thiab cia cov thev naus laus zis muaj qhia koj.
Yog li nws GPS yog dab tsi? 'Peb hu nws Tube Flow Modelling,' Dodman hais. 'Peb tau hloov pauv tag nrho txoj kev uas peb tau ua qauv ntawm cov raj los ntawm qhov pib - txawm tias txoj kev peb muab cov ntaub ntawv tso rau hauv lub kaw lus thiab txoj kev uas peb tso ntau qhov kev tswj hwm peb tau siv los xav tias peb xav tau ntawm qee yam. Nws tso cai rau lub raj ntws los ntawm qhov kawg mus rau qhov kawg ntawm txhua qhov kev txwv hauv txoj hauv kev yooj yim li sai tau.'
Born dua
Qhov kev tsis txaus ntseeg ntawm no yog tias aluminium alloy tau rov ua dua tshiab thiab coj rov qab los rau cov tuam txhab cov khoom lag luam los ntawm kev siv thev naus laus zis uas tau kawm, qauv thiab ua kom zoo dua los ntawm kev hloov pauv: carbon. Los ntawm kev tsom mus rau lub raj shaping hauv cov hlau thav duab nrog kev nkag siab ntawm cov yam ntxwv ntawm kev caij tsheb yog qhov xav tau, raws li cov lus qhia uas carbon thav duab tau coj lawv, cov tuam txhab muaj peev xwm ua pa lub neej tshiab rau hauv txhuas.
Txhawm rau sim daws qee qhov sib txawv ntawm qhov hnyav thiab tus nqi peb tau hais rau Italian tube chaw tsim tshuaj paus Dedacciai, ib qho ntawm tsuas yog ib pawg ntawm tubeset manufacturers uas tseem tsim nws tus kheej tsheb kauj vab ntau, hauv ob qho tib si carbon thiab txhuas. Peb twb tau hais txog qhov tseeb tias cov pa roj carbon nqi ntau dua thiab hnyav dua li aluminium, tab sis los ntawm ntau npaum li cas?
Dedacciai Strada tus thawj coj xa tawm, Max Gatti, tso nws zoo li no: 'Yog tias peb sib piv cov khoom zoo, peb txoj kev sib tw txhuas feem ntau hnyav 1, 100-1, 300g, thiab txoj kev sib tw carbon thav duab hnyav 900 - 1,100 g yog '. Qhov sib txawv ntawm cov khoom siv raw khoom yog kwv yees li 1: 4 [hauv kev pom zoo ntawm txhuas].'
Cannondale's Dodman kwv yees tus nqi sib piv kom siab dua me ntsis. 'Raws li cov khoom siv raw khoom txhuas yog kwv yees li ib feem ntawm tus nqi ntawm carbon fiber prepreg, thiab cov txheej txheem txhuas sab saum toj kawg nkaus tus nqi kwv yees li ib nrab ntawm qhov nkag-theem carbon thav duab nqi ntawm cov khoom siv thiab kev ua haujlwm xwb.'
Nqi, yog li ntawd, yog qhov hnyav hnyav rau kev nyiam ntawm cov hlau, tab sis qhov ntawd tsuas yog ib feem ntawm zaj dab neeg. Trek Bikes tus thawj coj khoom lag luam laus Ben Coates hais tias, 'Nws yog qhov tseeb tseem ceeb uas cov tsheb kauj vab txhuas tuaj yeem ua rau tus nqi qis dua cov pa roj carbon, yog li yog tias koj muaj nuj nqis siab dua lub log spec lossis qib siab dua, koj tau ua lag luam zoo rau carbon fiber.. Raws li rau lwm cov txiaj ntsig, lub tsheb kauj vab aluminium yuav zoo li nws hloov lub zog sai dua, thiab feem ntau sib dua piv rau cov pa roj carbon ntawm tib tus nqi. Yog li nws nyob ntawm koj siv thiab koj tus nqi. Txhua tus paub tias tus neeg sib tw crit ntawm lub tsheb kauj vab txhuas tuaj yeem tsoo nws thiab tsis tas yuav txhawj xeeb txog tus nqi ntawm kev hloov tus ncej. Thiab tseem muaj lub caij nyoog koj tuaj yeem sawv thiab sib tw mus rau qhov kawg.'
Kev xaiv
Nrog qhov kev txaus siab txuas ntxiv no rau hauv txhuas thiab kev nkag mus ntawm nruab nrab / siab-kawg haiv neeg-npaj thav ntawv, kev sib tshooj yog tsim nyob rau hauv kev ua lag luam uas cov neeg siv khoom yuav pom tau tias qee lub tsheb kauj vab txhuas tau muag ntawm tus nqi zoo sib xws lossis siab dua rau qee cov qauv carbon. Yog li, yog tias koj mus rau hauv lub khw muag tsheb kauj vab nrog cov khoom loj lossis siv nyiaj, koj yuav tsum xaiv lub tsheb kauj vab carbon lossis txhuas?
Cannondale tus thawj coj khoom lag luam David Devine hais tias, 'Nco ntsoov tias tsis yog txhua qhov carbon yog tsim sib npaug. Thaum koj tab tom yuav khoom ntawm £ 1, 300 tus nqi taw tes cov pa roj carbon feem ntau molded nrog tus nqi hauv siab, thiab qhov tshwm sim yog thav duab ntawm tus nqi no tsis tu ncua hnyav dua li txhuas. Peb CAAD12 hnyav 1,098g hauv qhov loj 56cm. Peb kuj tau sim nqaim qhov sib txawv ntawm txhuas thiab carbon nyob rau hauv cov nqe lus ntawm kev caij, sib piv cov zauv nruj thiab kev nplij siab ntawm peb Evo carbon ncej. Tab sis los ntawm qhov ntawd [vim tus nqi qis dua] cov neeg siv khoom tuaj yeem tau txais tus nqi spec ntau dua los ntawm CAAD12 piv rau Evo platform.'
Ntawm tus nqi tshwj xeeb - £ 1, 000 rau £ 1, 500 - nws tuaj yeem yog lub tsheb kauj vab txhuas yog sib dua, ib yam li tawv, thiab zoo dua specced dua li nws cov carbon rivals. Yuav muaj ib txwm muaj cov neeg uas xav tias aluminium tsis yog qhov xav tau zoo li cov pa roj carbon monoxide, tab sis yog tias koj tuaj yeem pom yav dhau los qhov teeb meem ntawm kev xaav ces koj tsuas yog sab laug nrog rau lwm yam los xav txog: yuav ua li cas thiaj zoo dua rau lwm lub tsheb kauj vab mus rau hauv chav nres tsheb yam tsis muaj lwm yam. ib nrab pom.
