Bolt yog ib qho khoom siv kho tshuab, feem ntau siv nyob rau hauv ntau qhov chaw, nws yog los ntawm lub taub hau thiab ntsia hlau ob feem ntawm ib pab pawg neeg fasteners, yuav tsum tau siv ua ke nrog cov txiv ntseej, feem ntau yog siv los fasten kev sib txuas ntawm ob qhov chaw nrog los ntawm qhov. Tej zaum koj tsis muaj kev nkag siab txog qib ntawm cov khoom siv ntawm lub ntsia liaj qhov rooj, kab lus no yuav qhia koj txog cov khoom siv ntsia liaj qhov rooj, qib kev paub txog, txhawm rau kom ntau tus neeg kawm paub txog cov khoom me me ntawm lub bolt.
Cov qib thiab cov ntaub ntawv ntawm cov bolts hais txog dab tsi?
Bolt qib yog hais txog tus ntsia liaj qhov rooj yog 4.8 qib, 8.8 qib, 10.9 qib thiab lwm yam bolt qib.
Cov ntaub ntawv hais txog lub ntsia liaj qhov rooj yog ua los ntawm cov khoom siv, xws li Q235, 35K, 40Cr, 45 # steel, 35CrMo steel, 304 stainless hlau thiab 316 stainless hlau thiab lwm yam.
Bolt qib thiab cov khoom siv yog ib qho kev sib raug zoo, me me hlau tsuas tuaj yeem tsim cov qib qis zog bolts, nruab nrab carbon steel tuaj yeem tsim nruab nrab lub zog qib bolts, siab carbon steel, alloy steel tuaj yeem tsim muaj zog qib bolts. Qee qib bolt qhia txog cov tshuaj lom neeg muaj pes tsawg leeg thiab cov khoom siv kho tshuab, tab sis kuj txiav txim siab cov khoom siv.
Ntawm no yog ib daim ntawv teev cov qib ntawm cov bolts tuaj yeem yog cov khoom siv dab tsi. 4.8 qib tuaj yeem yog Q235, Q195 thiab lwm yam khoom siv hlau me me. 5.8 qib Q235 saum toj no tag nrho cov ntaub ntawv tuaj yeem ua tau, tsis xav tau kev kho cua sov. 8.8 qib xov txoj kab uas hla ntawm 16MM lossis tsawg dua, 35 # tempering kho cua sov, 16mm lossis ntau dua, 45 # thiab qis carbon alloy steel tempering. 10.9 qib ntawm nruab nrab-carbon alloy steel tempering Thaum tshav kub kub kho 35Crmo 40Cr thiab hais txog.
Cov bolts muaj zog tuaj yeem txawv ntawm cov bolts los ntawm lawv cov khoom?
Feem ntau muab faib raws li qib zog.
Bolt kev ua tau zoo qib 3.6, 4.6, 4.8, 5.6, 6.8, 8.8, 9.8, 10.9, 12.9 thiab lwm yam ntau tshaj 10 qib, ntawm 8.8 thiab saum toj no bolts ua los ntawm cov hlau tsis tshua muaj carbon hlau lossis nruab nrab-carbon steel thiab kub-kho (quenched), feem ntau hu ua bolts lub npe hu ua common bolts. Bolt kev ua tau zoo qib labeling muaj ob feem ntawm cov digital muaj pes tsawg leeg, feem, hais tias lub nominal tensile lub zog ntawm lub bolt khoom tus nqi thiab flexural zog piv tus nqi.
Piv txwv li, kev ua haujlwm qib 8.8 qib bolts, lub ntsiab lus yog:
1, bolt khoom nominal tensile zog ntawm 800MPa qib;
2, cov khoom siv ntsia liaj qhov rooj yield zog piv ntawm 0.8;
3, qhov nominal yield zog ntawm cov khoom siv ntsia liaj qhov rooj mus txog 800 × 0.8 = 640MPa qib ntawm cov feem ntau siv high-strength bolts rau qib 8.8 thiab 10.9, feem ntau siv cov bolts zoo tib yam rau qib 4.8.
Post lub sij hawm: Aug-28-2024
