Dab tsi yog tus qauv rau tus kheej-npoo screws?

Feem ntau, muaj ntau cov qauv rau qhov loj me, cov khoom siv mechanies thiab kev ua haujlwm yuav tsum muaj ntawm kev siv cov screading tus kheej:
1. Cov Qauv rau Kev Siv Tus Kheej Drillinging Scairs
Lub Asme B18.6.6. {{{{{2} Tus qauv tsis yog qhia txog kev siv hluav taws xob thiab kev ua haujlwm uas yuav tsum ua ntawm carbon hlau tus kheej drawing screws. Cov Lus Nyeem Ntxiv muab cov lus qhia rau kev ntsuas ntau qhov ntev thiab cov kev taw qhia ntawm kev kaw lub taub.
2. Kev ua txuj ci rau tus kheej drilling screws (suav nrog cov khoom siv hauv cov neeg kho mob thiab ua haujlwm ua haujlwm):
(1) SAE J933: Qhia txog cov cuab yeej siv cov neeg kho mob thiab kev ua haujlwm xav tau ntawm cov steel hlau tus kheej drilling screws thiab dawb txiav tus kheej drilling screws. Txuas ntxiv qhia cov kev xav tau rau cov khoom siv raw, kev kho cua sov, carburizing txheej thiab nto hardness, thiab lwm yam.
(2) SAE J81: Qhia cov khoom siv mechanical thiab ua haujlwm ntawm kev siv tus kheej drilling tus kheej (kev xauv tus kheej drooting screws).
(3) SAE J78: Qhia cov khoom siv mechanical thiab ua haujlwm ntawm kev siv tus kheej drilling tus kheej.
(4) ifl {-113}: qhia cov khoom siv mechanical thiab ua haujlwm ntawm tus kheej dricks.
(5) ASTM C1513: Qhia cov khoom siv mechanical thiab kev ua haujlwm xav tau ntawm carbon hlau tus kheej nruj screws.
Rau lwm yam tshwj xeeb ntawm tus kheej-tapping screws, tsis muaj cov qauv siv hauv tebchaws lossis cov qauv kev lees paub ntawm tus kheej cov khoom siv hlau tau tsuas yog cov hlau. Rau cov ntaub ntawv qhia txog cov ntsia hlau tus kheej, koj tuaj yeem nug nrog cov chaw tsim khoom.