Kev Sib Piv Ntawm Cov Qauv Hauv Lub Tebchaws Rau Kev Siv Lub Zog Muaj Zog Nyob Hauv Ntau Lub Tebchaws

Suavhigh-zog fastenersUa raws li lub teb chaws tus qauv GB / T 3632-2018General Technical Conditions rau Steel Bars rau Fasteners, Bolts, Screws thiab Studs. Cov txheej txheem no tswj cov kev faib tawm, qhov ntev, cov khoom siv, cov khoom siv kho tshuab thiab cov kev xav tau ntawm cov hlau tsis huv rau cov khoom siv muaj zog, ua lub hauv paus tseem ceeb rau kev tsim cov bolts muaj zog hauv Suav teb. Cov khoom siv kho tshuab, kev faib qib thiab kev xeem yuav tsum tau ua kom tiav cov bolts muaj zog yog feem ntau teev nyob rau hauv GB / T 3098.2 series qauv.

Raws li lub teb chaws specifications, feem ntau siv high-strength mechanical bolts tau muab faib ua ob qib zog: Qib 10.9 thiab Qib 12.9. Qib 10.9 bolts muaj lub zog tensile yam tsawg kawg nkaus ntawm 1040 MPa thiab qhov tsawg kawg nkaus yield zog ntawm 900 MPa; Qib 12.9 bolts muaj lub zog tensile yam tsawg kawg nkaus ntawm 1220 MPa thiab qhov tsawg kawg nkaus yield zog ntawm 1080 MPa. Nrog rau kev ua tau zoo txhua yam thiab muaj peev xwm thauj khoom siab, cov bolts siab zog no tau siv dav hauv cov xwm txheej thauj khoom uas xav tau kev sib txuas siab thiab kev nyab xeeb ntawm cov qauv, suav nrog choj engineering, tsev siab siab, kev txhawb nqa steel, kev tsim tsheb thiab cov khoom siv tshuab hnyav.

Lub teb chaws tus txheej txheem txheej txheem txhais tau hais tias qhov siv tau ntau yam, cov khoom siv raw, kev kho cua sov specifications thiab ua tiav txhua yam kev ua tau zoo rau lub zog siab bolts, npog qhov tseem ceeb xws li tensile resistance, yield zog, elongation tom qab tawg, hardness thiab cuam tshuam toughness. High-strength bolts yog feem ntau ua los ntawm nruab nrab-carbon alloy steel thiab quenched thiab tempered alloy steel. Integral quenching thiab tempering tshav kub kev kho mob kom ruaj khov siab zog thiab superior toughness, ua tau raws li cov qauv load-bearing thiab tiv thaiv kev qaug zog. Bolt qhov ntev thiab qib zog yuav tsum raug xaiv raws li qhov tseeb ntawm cov khoom thauj, qhov chaw sib dhos thiab cov xov xov tshwj xeeb.

nruj me ntsis raws li lub teb chaws cov qauv hauv kev tsim, ntau lawm, xaiv thiab installation ntawmmuaj zog boltszoo guarantees fastening raug, load stability thiab structural kev ruaj ntseg. Hauv kev siv engineering, cov bolts tsim nyog yuav tsum raug xaiv raws li qhov haujlwm ua haujlwm, cov yam ntxwv thauj khoom thiab cov kev qhia tshwj xeeb kom ntseeg tau tias tag nrho cov qauv kev ruaj ntseg thiab kev ntseeg tau ntev.

Ntxiv rau Tuam Tshoj tus txheej txheem thoob ntiaj teb, ISO cov qauv thoob ntiaj teb thiab Asmeskas cov qauv ASTM sawv cev rau ob qho kev siv thoob ntiaj teb cov txheej txheem rau kev siv zog siab hauv kev lag luam thiab kev lag luam txawv teb chaws.

Hauv cov txheej txheem ISO, cov ntsiab lus tshwj xeeb rau cov ntsia hlau muaj zog yog ISO 898-1 thiab ISO 898-2. TS EN ISO 898-1 Kev ntsuas kev ua tau zoo ntawm cov khoom siv kho tshuab, lub zog tensile, tawm lub zog, elongation, hardness thiab lwm yam kev qhia rau carbon steel thiab alloy steel bolts, screws thiab studs. TS EN ISO 898-2 standardizes qhov ntev kam rau ua, qhov tseeb geometric, sib dhos qhov ntev thiab qhov sib txawv ntawm qhov xav tau ntawm threaded fasteners, sib koom ua ke tsim cov txheej txheem thoob ntiaj teb rau kev siv zog siab.

Nyob rau hauv American ASTM tus qauv system, ASTM A325 thiab ASTM A490 yog cov qauv tseem ceeb rau cov txheej txheem siab-lub zog bolts siv hauv kev sib txuas ntawm architectural thiab engineering. ASTM A325 npog carbon steel structural bolts nrog nruab nrab lub zog tag nrho thiab kev ua haujlwm zoo. ASTM A490 qhia txog lub zog siaballoy steel structural boltsnrog ntau zog, toughness thiab qaug zog kuj, haum rau hnyav-load, ntev-span thiab high-stress steel qauv daim ntaub ntawv. Ob tus qauv nruj me ntsis txhais cov tshuaj muaj pes tsawg leeg, cov txheej txheem kho cua sov, cov khoom siv kho tshuab, qhov ntev ntev thiab kev soj ntsuam tshwj xeeb rau cov ntsia hlau muaj zog.

Cov txheej txheem txheej txheem sib txawv thoob plaws lub tebchaws, cheeb tsam thiab cov haujlwm engineering. Cov haujlwm hauv tsev tau txais cov qauv hauv tebchaws Suav, thaum cov haujlwm xa tawm, kev tsim vaj tsev nyob txawv teb chaws thiab cov khoom siv European thiab Asmeskas yuav tsum ua raws li ISO lossis ASTM cov qauv. Kev xaiv Bolt yuav tsum nruj me ntsis ua raws li kev lag luam hauv zos, cov qauv khoom siv thiab cov qauv tsim.

Ib tug txheej txheem txheej txheem rau high-strength bolts yog ib qho tseem ceeb los xyuas kom meej fastening zoo, kev txhim kho cov qauv kev ruaj ntseg yam thiab tiv thaiv cov qauv loosening thiab tsis ua hauj lwm. Kev tsim, kev xaiv, kev teeb tsa thiab kev lees paub ntawm lub zog siab bolts yuav tsum tau ua raws li nruj raws li cov lus qhia tshwj xeeb kom ruaj khov, ruaj khov thiab ua haujlwm ntev ntawm cov qauv kev sib txuas.