1. Kev soj ntsuam xyuas cov ntsiab lus: Lub taub hau ntsia hlau yuav tsum muaj cov ntse ntse, zoo ib yam grooves thiab tsawg wobble tom qab tso. Yuav tsum tsis muaj burrs ntawm cov npoo los tiv thaiv stripping thiab puas thaum lub sij hawm zawm.
Cov xov yuav tsum yog tag nrho thiab sib xws, tsis muaj qhov sib tsoo lossis ploj ntawm cov hniav thiab tsis muaj kab nrib pleb ntawm qhov kawg. Txwv tsis pub, cov xov yog nquag tawg thiab stripping thaum siv.
Cov txheej txheej saum npoo yuav tsum tsis sib xws hauv cov xim, tsis muaj xeb thiab tev, nrog rau tag nrho gloss thiab tsis muaj kev ua haujlwm xws li pinholes.
2. Simple Performance Verification: Maj mam muab cov ntsia hlau nto nrog cov ntaub ntawv tsis tu ncua. High- cov khoom zoo yuav ua tau raws li tus qauv hardness; cov ntaub ntawv yuav plam thiab nyuaj rau siv. Ib qho tawv tawv ntawm ntau dua lossis sib npaug rau 450HV0.3, ua tau raws li cov qauv hauv tebchaws, yog qhov siv tau.
Ib qho yooj yim xeem ntsia hlau rau hauv cov phaj xeem ntawm cov khoom siv sib xws yuav tsum tau ua kom zoo, sib piv cov xov sab hauv yam tsis muaj qhov cuam tshuam loj lossis puas tsuaj rau cov ntsia hlau nws tus kheej.
3. Kev Ua Raws Cai thiab Kev Txheeb Xyuas Kom Zoo: Ntsuas cov kab sab nraud. Cov khoom tsim nyog yuav muaj qhov ntev ntawm lub teb chaws tus qauv kam rau ua. Inferior screws yuav muaj ib tug ho thinner txheej txoj kab uas hla, uas ua rau tsis txaus zawm quab yuam.
Cov khoom ntim khoom raug cai kom meej meej qhia meej meej thiab tus lej batch, suav nrog daim ntawv pov thawj ntawm kev ua raws, txhawb nqa kev ua tau zoo, thiab zam cov khoom cuav lossis cov khoom tsis zoo.
4. Core Performance Standards Reference: High-tus kheej zoo-tapping screws yuav tsum ua tau raws li cov kev cai ntawm lub teb chaws tus qauv GB/T 3098.5, nrog carburized txheej qhov tob thiab cov tub ntxhais hardness nyob rau hauv lub cheeb tsam. Kev tiv thaiv xeb tuaj yeem raug txheeb xyuas los ntawm kev kuaj tshuaj ntsev, thiab cov khoom siv sab nraum zoov tuaj yeem muab kev tiv thaiv xeb rau ntau tshaj 48 teev.
