Lub ntsiab txhais ntawm cov ntsia thawv yog hais txog tus kheej tapping screws uas tsis tas yuav siv nrog txiv ntseej. Lub xov yog tswj yus tus kheej thiab muaj qhov kawg. Thaum lub voos ntawm cov voos plaub kheej kheej ua rau nws lub plhaub lawm, nws ntsia rau hauv lub qhov hlau yas, nws yuav nias rau hauv lub qhov rau sab hauv thiab ua ib qho txhim khu kev txhuam txoj xov txuas.
Ntsuas feem ntau xa mus rau tus kheej tapping screws uas tsis tas yuav siv kev ceev. Precision Screws Me screws, tseem hu ua me quav screws, yog me me fasteners uas txuas cov khoom ntawm qhov khoom. Lawv yog cov me me, tab sis lawv tuaj yeem ua si lub luag haujlwm tseem ceeb hauv cov khoom tseem ceeb. Siv dav hauv hluav taws xob, hluav taws xob, khoom siv hluav taws xob, rooj tog vaj tog tsev, khoom siv thiab khoom siv. Cov hau ntawm lub screws yog heev cais, nrog hexagonal hau, lauj kaub hau, countersunk hau, thiab hexagonal hau. Kiv taub hau, nrog hau thiab hais txog. Tail yog feem ntau tipped. Ua kom tus kheej khawm cov nyhuv.
Tapping self-tapping kuj tseem hu ua self-tapping screws. Lub npe tsis zoo li qub, tab sis lub ntsiab lus yog tib yam nkaus. Nws yog txhua tus kheej tapping. Kev ua haujlwm tseem ceeb ntawm tus kheej tapping screws yog tias lawv tsis tas yuav siv nrog ceev. Nyob rau hauv cov nqe lus ntawm tus nqi, ib tug loj tus naj npawb ntawm lawv tau txais kev cawmdim. Yuav tsis muaj nqi rau cov txiv ntseej.
Qhov tseem ceeb ntawm cov cuab yeej siv hlau (steel stainless acid-resistant) Txawm hais tias muaj ntau hom screws, lawv txhua tus muaj cov nram qab no tseem ceeb nta
(1) Nws feem ntau yog ua los ntawm cov cav ntoo (99% ntawm tag nrho cov khoom). Hluav taws xob cuav yog "ntau yam khoom" thiab tsis yog tsim los ntawm cov artworks. Nyob rau hauv ntau ntau lawm, lawv yog tsom ntawm kev ua tiav high-precision, ruaj zoo thiab neeg nqi. Nws tseem yuav ua los ntawm cov hlau tsis muaj stainless (stainless acid-resistant steel) lossis cov hlau uas tsis yog ferrous.
(2) Cov khoom yuav tsum muaj kev kho cua sov (chǔ lǐ). Carbon steel self-tapping screws yuav tsum yog carburized (chǔ lǐ), stainless hlau (stainless acid-resistant steel) screws yuav tsum yog khoom hardening (chǔ lǐ). Yog li ntawd tus kheej tapping screws tau raws li tus txheej txheem tus qauv ntawm cov khoom siv thiab kev ua haujlwm.
(3) Khoom muaj kev ua kom siab tawv thiab ua kom zoo nyob hauv tus ntxhais. Qhov ntawd yog "puab sab nraum zoov xwb." Qhov no yog qhov tseem ceeb ntawm cov hlau tsis muaj stainless (stainless acid) uas yuav tsum tau ua kom muaj kev sib tw. Yog tias cov tawv tawv tsis qis, qhov ntsia hlau tsis tau muab tso rau hauv lub cev puag; Yog hais tias tus tub ntxhais muaj kev txom nyem, lub hau yuav txiav tawm thiab siv tsis tau. Yog li ntawd, "puab lub qhov muag tsis zoo" yog ib lub voos kheej kheej uas txaus siab rau kev ua haujlwm.
(4) Cov nplais ntawm cov khoom (Khoom) xav tau kev tiv thaiv qhov chaw tiv thaiv (chǔ lǐ), uas feem ntau electroplated. Precision Screws Me screws, tseem hu ua me quav screws, yog me me fasteners uas txuas cov khoom ntawm qhov khoom. Lawv yog cov me me, tab sis lawv tuaj yeem ua si lub luag haujlwm tseem ceeb hauv cov khoom tseem ceeb. Siv dav hauv hluav taws xob, hluav taws xob, khoom siv hluav taws xob, rooj tog vaj tog tsev, khoom siv thiab khoom siv. Qee cov khoom yuav tsum tau kho phosphate (phosphating). Piv txwv li, phab ntsa cov nplaum yog feem ntau phosphatized.
(5) Cov txheej txheem rau kev lag luam. Nws pom zoo kom siv high-speed txias lub cav xaav thiab cov hlua khauj high speed ceev los yog high-speed planetary thread rolling cav tov kom zoo ntawm cov khoom. Lub taub hau ntawm tus kheej tapping tob hau ua li no yog qhov zoo tsim thiab xov zoo yog siab