Dowel yog cov khoom siv ntau tshaj plaws siv hauv kev tsim kho niaj hnub. Nws yog tsim nyob rau hauv daim ntawv ntawm ib tug yas, hlau los yog nylon pas nrig nrog lub hau thiab lub taub hau nyob rau hauv daim ntawv ntawm ib tug nuv, nplhaib, lub tog raj kheej, kheej kheej los yog ca cap nrog ib tug slot. Lub cev ntawm lub fastener no tej zaum yuav muaj ib tug xov los yog expander mechanism. Dowels yog siv rau cov ntaub ntawv hollow, nrog rau cov khoom, piv txwv li, cib, pob zeb, pob zeb, aerated qhob thiab lwm yam.
Qhov nthuav dav dowel yog qhov txhim khu kev qha thiab feem ntau siv kho cov cuab yeej. Nyob ntawm cov khoom siv thiab kev tsim qauv, cov ntsiab lus no yog tsim los txhawm rau thim cov screws thiab screws rau hauv paus nrog lawv cov ntsia hlau txuas ntxiv. Tam sim no, hom khoom no yog tsim los ntawm cov ntaub ntawv sib txawv: nws tuaj yeem yog yas, hlau lossis lwm yam khoom siv uas yuav tsum muaj cov khoom zoo thiab cov yam ntxwv. Tus tsim kuj tuaj yeem sib txawv heev. Lub expansion dowel yog xaiv nyob ntawmrau lub hom phiaj twg koj xav siv nws. Piv txwv li, lub dowel hlau yog siv dav heev thaum nws yuav tsum tau them nyiaj rau cov khoom tseem ceeb ntawm qhov chaw, yog li nws yog qhov tsim nyog rau cov txheej txheem hollow nyias-walled.
Lwm qhov muaj txiaj ntsig thiab ntau yam fastener tuaj yeem suav tias yog aerated qhob dowel. Nws yog siv ua ke nrog cov khoom ntoo thiab chipboard screws. Lub fastener no tso cai rau koj kom ruaj ntseg kho ntau yam gratings, cov kav dej thiab cov khoom siv hluav taws xob, cov kav dej thiab cov consoles rau saum npoo ntawm cov pob zeb aerated. Xws li ib qho kev nthuav dav dowel yog ua los ntawm cov hlau thiab polyamide ntawm qhov zoo tshaj plaws. Cov cuab yeej no muaj cov ribs sab nraud, ua nyob rau hauv daim ntawv ntawm ib tug kauv, uas tso cai rau koj mus ob npaug rau lub cheeb ntawm cov khoom thaum screwing nyob rau hauv lub dowel. Qhov no yog tsim nyog los faib lub siab tshaj qhov chaw ua hauj lwm ntawm aerated pob zeb kom tusyees li sai tau nrog ib tug transverse los yog nruab nrab thrust. Nws yog kev cai los ua cov khoom siv fastening no los ntawm cov hlau tsis muaj zog ntawm lub zog siab tshaj plaws, uas ua rau nws muaj peev xwm nrhiav tau cov ntawv thov dav tshaj plaws rau lawv hauv kev teeb tsa lub qhov rais, qhov rooj, cov txheej txheem tshem tawm, thiab ntau ntxiv rau cov pob zeb aerated. Qhov nthuav dav dowel tuaj yeem muaj qhov sib txawv thiab cov duab, thaum nws yog siv los ua ke nrog tus kheej tapping screws lossis screws, nyob ntawm seb cov dej num.
Expansion dowel muaj hlau, yas lossis nylon core. Nyob rau hauv xws li fasteners, lub cev muaj ib tug spacer mechanism, uasThaum lub sij hawm screwing txheej txheem, cov ntsia hlau expands, uas ua kom lub ruaj ruaj fixation. Lub fastener no tuaj yeem siv rau mounting hlau, ntoo qauv rau ntau qhov chaw, piv txwv li, cib los yog masonry. Yog tias peb tham txog kev ua haujlwm sab nraum zoov, nws yog qhov tsim nyog los siv cov nylon fasteners, thiab polypropylene yog npaj rau kev ua haujlwm sab hauv tsev. Cov qauv tshwj xeeb thauj khoom tuaj yeem txuas nrog hlau fasteners.
