Saib rov qab rau yav dhau los, Xiaorui pom tias qee tus phooj ywg tsis muaj qee cov kev paub txog kev paub thiab nkag siab txog cov kev paub ntawmtus ceevCov khoom lag luam. Hnub no, Xiaorui yuav coj koj kom rov qab:
Cov qauv rau cov screts muaj xws li: tus qauv khoom (cov qauv), cov khoom siv, ua lub zog, cov kev kho mob, thiab kev kho kom zoo nkauj
1. Nyob rau hauv cov nqe lus ntawm cov khoom hom, sab nraudHexagonal ScrewsMuaj qhov loj dua torque muaj peev xwm, cov screwsal sab hauv muaj ib qho me me torque muaj peev xwm, thiab tus ntoo khaub lig loj muaj peev xwm me dua. Hauv cov khoom sib txuam siv, peb feem ntau pom zoo kom siv cov ntsia hlau nrog qib ib qib siab dua li cov txiv ntoo, uas yog qhov ua tau zoo tshaj plaws.
2. Cov khoom siv cov khoom yog yog hais txog cov hlau hlau feem ntau siv hauv peb Hongyi Screws. Raws li cov khoom siv carbon, peb faib nws mus rau hauv C1008 (sib raug rau qib 8.9), c1035 (sib xws mus rau qib 12.9 thiab 45h), ntawm cov pa roj carbon) Cov ntsiab lus, cov khoom siv nyuaj dua. Screws ntawm Qib 8.8 thiab saum yog suav tias yog high-zog screws.
3. Rau cov lus qhia tshwj xeeb xws li M4X8, cov uas hla ntawm cov hniav uas muaj hnub nyoog 4 hli, thiab cov ntiv tes zoo} ntiv tes nyob rau hauv lub loaded khoom yog 8 hli. Feem ntau,Countersunk ScrewsYog loaded nrog tag nrho qhov ntev, thiab semi contrersunks yuav tsum tau ntxiv ib nrab ntev ntawm lub taub hau. Thiab tus ntsia taub hau ntsia hlau tsis suav nrog lub taub hau loj.
4. Thaum tib cov khoom siv tau raug kev kho cua sov, qhov siab dua lub hardness, tus neeg txom nyem lub zog. Electroplating ntawm qib 8.8 lossis saum toj no yuav tsum tau kho kom sov. Tam sim no muaj ob hom kev kho cua sov peb ua: high-zog screws yuav tsum tau kho thiab tempering sov ntawm lub hau ntswj yog ib yam tsis zoo sab hauv; Cov ntsia hlau tus kheej xav tau kev kho mob cua sov, uas txhais tau hais tias saum npoo ntawm cov ntsia hlau yog coated nrog ib txheej ntawm carbon, uas yog qhov nyuaj heev, tab sis sab hauv yog qhov muag heev. Yog tias carburizing yog thov rau sab hauv, lub ntsia hlau yuav raug hlawv.
5. Feem ntau, yog tias lub hardness loj dua 32hrc, muaj kev pheej hmoo ntawm hydrogen embrittlement thaum lub electroplating. Hydrogenlement volittlement hais txog qhov tshwm sim uas h + ions sau cov hlau thiab cov npuas tsim cov kua qaub (roj stains) ntawm cov khoom. Tustswjtseem nyob rau hauv kev siv rau 24 teev ua ntej tawg. Yog li, cov khoom lag luam nrog kev pheej hmoo ntawm hydrogen embrittlement yuav tsum tau yauv kho hydrogen kho tom qab electroplating.
