Cov Qauv Zoo Hex Bolt
Cov Taub Hau Hex Ib Txwm
Cov bolts no feem ntau yog C-qib coarse bolts, nrog rau qee qhov me me yog A thiab B-qib precision bolts. Lawv muaj zog qis dua thiab feem ntau siv ua kev kho ib ntus lossis kev sib txuas hauv thaj chaw thauj khoom thib ob.
Cov Txheej Txheem Tseem Ceeb:
Lawv ua raws li cov qauv xws li GB/T 5780-2000 (ib nrab xov) thiab GB/T 5781-2000 (tag nrho xov). Cov lus qhia txog xov npog M5-M64. Cov qib kev ua tau zoo feem ntau yog 3.6, 4.6, thiab 4.8. Piv txwv li, lub ntsia hlau qib 4.8 muaj lub zog tensile nominal ntawm 400MPa thiab lub zog tso zis nominal ntawm 320MPa. Cov khoom siv feem ntau yog Q235 carbon hlau qauv. Qib A thiab B yog cov ntsia hlau precision, muab qhov tseeb siab tab sis kuj raug nqi siab dua. Qib C bolts yog cov ntsia hlau loj, nrog qhov ua haujlwm qis dua tab sis tus nqi qis dua; lawv yog cov ntsia hlau ib txwm siv feem ntau hauv cov qauv hlau.
Cov ntawv thov:
Haum rau kev kho ib ntus ntawm cov qauv hlau, xws li kev tso thiab txuas cov khoom siv hlau thaum lub sijhawm tsim kho; kuj tsim nyog rau cov qauv thauj khoom theem ob, xws li cov qauv hlau me me, kev sib txuas ntawm cov khoom tsis thauj khoom, thiab kev sib txuas hauv cov qauv hlau uas tuaj yeem rhuav tshem tom qab.
Lub zog loj hexagonal bolts
Cov no yog cov khoom siv txuas tseem ceeb hauv cov khoom tseem ceeb ntawm cov qauv hlau, feem ntau siv ua khub txuas (muaj 1 lub ntsia hlau, 1 lub txiv ntoo, thiab 2 lub washers). Lawv qhov kev ua tau zoo thiab qhov tseeb ntau dua li cov ntsia hlau ib txwm muaj.
Cov txheej txheem tseem ceeb:
Ua raws li GB/T 1228-2006 tus qauv; qib kev ua tau zoo feem ntau yog 8.8 thiab 10.9. Qib 10.9 bolts muaj lub zog tensile ntawm 1040-1240 N/mm², lub zog yield ntawm tsis tsawg dua 940 N/mm², thiab Vickers hardness ntawm 312 thiab 367. Qib 8.8 bolts muaj lub zog tensile ntawm 830-1030 N/mm² thiab lub zog yield ntawm 660 N/mm². Lawv feem ntau yog ua los ntawm cov hlau carbon nruab nrab lossis cov hlau alloy thiab xav tau kev kho cua sov kom txhim kho lawv cov khoom. Qee cov bolts muaj zog siab kuj raug galvanizing thiab lwm yam kev kho mob tiv thaiv xeb.
Cov Xwm Txheej Siv Tau:
Haum rau cov khoom tseem ceeb ntawm cov qauv hlau, xws li cov hlau txuas hauv cov choj, kev sib txuas ntawm cov node hauv cov qauv hlau siab, kev kho cov tsev xa hluav taws xob tseem ceeb, thiab kev khi cov khoom thauj hauv cov qauv hlau loj. Cov xwm txheej no muaj qhov yuav tsum tau ua kom ruaj khov thiab muaj kev nyab xeeb. Cov ntsia hlau loj hexagonal muaj zog tuaj yeem ua tiav qhov nruj torque, vam khom kev sib txhuam los hloov cov khoom thauj thiab xyuas kom meej tias tag nrho cov khoom thauj ntawm cov qauv.
Cov Nta Tseem Ceeb thiab Kev Ceev Faj Siv
Cov Kev Zoo Sib Xws:
Lub taub hau hexagonal tsim ua rau kev siv wrench thiab kev zawm nruj yooj yim, ua rau nws haum rau kev teeb tsa tshuab thiab kev teeb tsa tes. Feem ntau yog siv nrog cov txiv ntoo hexagonal thiab washers kom txhim kho kev sib khi thiab kev ruaj khov ntawm kev sib txuas. Qee qhov raug galvanizing kub-dip lossis lwm yam kev kho mob tiv thaiv xeb kom ntev lawv lub neej tiv taus xeb rau kev siv sab nraum zoov.
Kev Ceev Faj Siv:
Cov qib sib txawv ntawm cov ntsia hlau yuav tsum tsis txhob sib xyaw. Piv txwv li, cov ntsia hlau muaj zog siab 10.9 qib tsis tuaj yeem siv nrog cov txiv ntoo zoo tib yam qib 4.8. Lub zog ntawm cov ntsia hlau muaj zog siab yuav tsum tau tswj hwm nruj me ntsis thaum lub sijhawm teeb tsa; qhov yuam kev ntawm lub wrench torque yuav tsum nyob hauv ± 5% kom tsis txhob nruj dhau, uas tuaj yeem ua rau cov ntsia hlau tawg, lossis tsis nruj txaus, uas tuaj yeem cuam tshuam rau lub zog txuas. Kev khaws cia yuav tsum tau tiv thaiv los ntawm nag thiab dej noo kom tiv thaiv kev xeb thiab kev puas tsuaj ntawm cov xov. Yog tias cov ntsia hlau thiab cov txiv ntoo tsis sib xws, lawv siv raug txwv tsis pub ua.
