Self-tapping screws muaj ntau yam ntawm cov lus qhia thiab cov qauv xov, thiab muaj nyob nrog yuav luag txhua qhov tsim tau ntsia hlau taub hau. Cov yam ntxwv zoo ib yam yog cov ntsia hlau xov npog tag nrho qhov ntev ntawm cov ntsia hlau
los ntawm lub taub hau mus rau lub taub hau thiab ib qho kev hais lus nyuaj txaus rau lub hom phiaj substrate, feem ntau rooj plaub-hardened.
Rau cov khoom siv tawv tawv xws li cov hlau lossis cov yas tawv, feem ntau nws tus kheej tapping muaj peev xwm yog tsim los ntawm kev txiav qhov sib txawv ntawm qhov txuas txuas ntawm cov xov ntawm cov ntsia hlau, tsim lub raj nplaim thiab txiav ntug zoo ib yam li cov kais dej. Yog li, thaum lub tshuab ntsia hlau tsis tu ncua tsis tuaj yeem coj mus rhaub nws lub qhov hauv cov hlau substrate, nws tus kheej tapping ib tus tuaj yeem (hauv qhov tsim nyog txwv ntawm substrate hardness thiab qhov tob).
Rau softer substrates xws li ntoo los yog mos yas, nws tus kheej-tapping muaj peev xwm tuaj yeem yooj yim los ntawm lub taub hau uas tapers mus rau ib qho gimlet point (nyob rau hauv uas tsis muaj flute yog xav tau). Zoo li lub hau ntawm tus ntsia thawv lossis gimlet, xws li ib qho taw tes tsim lub qhov los ntawm kev hloov ntawm cov khoom nyob ib puag ncig es tsis yog ib qho chip-forming drilling / txiav / khiav tawm.
Tsis yog txhua tus self-tapping screws muaj lub ntsej muag ntse. Hom B taub yog blunt thiab npaj rau siv nrog lub qhov pilot, feem ntau hauv cov ntaub ntawv. Qhov tsis muaj lub ntsej muag ntse yog pab tau rau kev ntim khoom thiab tuav thiab hauv qee daim ntawv thov yuav pab tau kom txo tau qhov kev tshem tawm tsim nyog ntawm qhov thim rov qab ntawm lub vaj huam sib luag fastened los yog ua kom ntau cov xov muaj nyob rau ntawm cov ntsia hlau ntev.
Self-tapping screws tuaj yeem muab faib ua ob chav kawm; cov uas tshem tawm cov khoom (tshwj xeeb tshaj yog cov yas thiab nyias hlau los xij) yam tsis tau tshem tawm yog hu ua xov-tsim tus kheej-tapping screws; self-tappers nrog ntse txiav nto uas tshem tawm cov khoom raws li lawv tau ntxig yog hu ua tus kheej txiav.
Thread-forming screws tej zaum yuav muaj qhov tsis yog-cim txoj kev pom, xws li tsib-fold symmetry ntawm pentalobular los yog peb-fold symmetry rau Taptite screws.
Xov-txiav screws muaj ib los yog ntau tshaj flutes machined rau hauv lawv cov xov, muab cov npoo.
Post lub sij hawm: Dec-05-2023