Screw fasteners ua lub luag haujlwm tseem ceeb hauv ntau yam kev lag luam thiab kev siv, muab txoj hauv kev txhim khu kev qha thiab ua haujlwm tau zoo ntawm kev koom nrog cov ntaub ntawv.
1. Qhov tseem ceeb ntawm screws:
Screws yog ib qho tseem ceeb rau txhua qhov kev lag luam, los ntawm kev tsim kho thiab tsheb mus rau electronics thiab rooj tog. Cov ntau yam fasteners no muab kev sib txuas zoo, ua kom muaj kev ruaj ntseg thiab kev ncaj ncees ntawm cov khoom sib dhos. Los ntawm kev ruaj ntseg fastening cov ntaub ntawv sib txawv, screws tsim cov khoom ua haujlwm thiab ruaj khov.
2. Kev tsim cov txheej txheem ntawm cov ntsia hlau:
Kev tsim cov ntsia hlau fasteners suav nrog ntau cov kauj ruam yooj yim, suav nrog:
a) Kev xaiv cov khoom siv:
Cov neeg tsim khoom ua tib zoo xaiv cov khoom siv ntsia hlau uas tsim nyog, suav nrog cov yam ntxwv xws li lub zog, kev tiv thaiv corrosion, thiab tsim nyog rau ib puag ncig. Cov khoom siv feem ntau suav nrog stainless hlau, carbon steel, aluminium, thiab tooj dag.
b) Hlau ntau lawm:
Cov khoom uas tau xaiv yog tsim rau hauv cov hlau los ntawm cov txheej txheem xws li kub dov lossis kos duab txias. Cov kauj ruam no ua kom zoo ib yam, ua tau zoo ntawm cov ntsia hlau blanks.
c) Ntev:
Cov hlau tsis muaj raug txiav mus rau qhov ntev uas xav tau thiab tom qab ntawd forged nyob rau hauv lub taub hau tshuab. Cov txheej txheem no ua rau lub taub hau ntsia hlau thiab npaj nws rau kev ua haujlwm tom ntej.
d) Thread processing:
Threading suav nrog kev tsim cov helical zawj hauv cov ntsia hlau ncej uas tso cai rau nws nkag mus thiab koom nrog cov khoom sib txuas. Qhov no tuaj yeem ua tiav los ntawm txoj kev xws li xov dov, xov txiav lossis xov sib sau.
e) Kev kho cua sov thiab txheej:
Txhawm rau txhim kho cov khoom siv dag zog thiab kev tiv thaiv corrosion, cov ntsia hlau feem ntau raug rau kev kho cua sov txheej txheem xws li annealing, quenching, thiab tempering. Tsis tas li ntawd, coatings xws li galvanized, galvanized lossis organic coatings yog siv los muab kev tiv thaiv corrosion ntxiv.
f) Kev tshuaj xyuas thiab ntim khoom:
Ua ntej ntim, cov ntsia hlau tau raug kuaj xyuas kom zoo los xyuas kom meej qhov tseeb, lub zog thiab qhov chaw tiav. Thaum pom zoo, lawv tau ntim rau hauv ntau lossis ntau qhov tshwj xeeb, npaj rau kev faib tawm.

3. Kev lag luam xav tau rau screws:
Kev lag luam xav tau rau screws tseem muaj zog rau cov laj thawj hauv qab no:
a) Kev loj hlob ntawm kev lag luam:
Raws li kev lag luam xws li kev tsim kho, tsheb thiab khoom siv hluav taws xob nthuav dav thoob plaws ntiaj teb, qhov kev xav tau ntawm cov kev daws teeb meem ruaj khov thiab muaj txiaj ntsig tau nce siab. Screws muaj ntau yam thiab cov kev xaiv kho tau los ua kom tau raws li cov kev cai no thoob plaws kev lag luam.
b) Kho thiab tu:
Raws li cov txheej txheem thiab cov khoom siv uas twb muaj lawm yuav tsum tau kho lossis hloov kho dua tshiab, qhov xav tau ntawm cov ntsia hlau yog qhov tseem ceeb. Fasteners ua lub luag haujlwm tseem ceeb hauv kev saib xyuas thiab kev ua haujlwm ntev ntawm cov tshuab, kom ntseeg tau tias kev ua haujlwm du thiab tiv thaiv kev poob qis.
Saum toj no:
Kev tsim cov txheej txheem ntawm cov ntsia hlau fasteners koom nrog kev saib xyuas zoo rau kev xaiv cov khoom, fabrication thiab xov. Screws ua lub luag haujlwm tseem ceeb hauv kev muab kev sib txuas ruaj ntseg thiab ua tiav cov kev xav tau ntawm kev lag luam sib txawv thiab yog li ntawd tseem yog cov khoom lag luam tseem ceeb hauv suav tsis txheeb.