Muaj 4 feem ntau siv hexagon bolts:
1. GB/T 5780-2016 "Hexagon Head Bolts Class C"
2. GB / T 5781-2016 "Hexagon taub hau bolts nrog tag nrho xov C qib"
3. GB/T 5782-2016 "Hexagon Head Bolts"
4. GB / T 5783-2016 "Hexagon taub hau bolts nrog tag nrho cov xov"
Qhov sib txawv tseem ceeb ntawm plaub feem ntau siv bolts yog raws li hauv qab no:
1. Txawv thread lengths:
Cov xov ntev ntawm lub bolt yog tag nrho cov xov thiab cov xov tsis puv.
Ntawm cov saum toj no 4 feem ntau siv bolts
GB / T 5780-2016 "Hexagon Head Bolts Class C" thiab GB / T 5782-2016 "Hexagon Head Bolts" yog cov tsis muaj xov tag nrho.
GB / T 5781-2016 "Hexagon Head Bolts Full Thread Class C" thiab GB / T 5783-2016 "Hexagon Head Bolts Full Thread" yog tag nrho cov threaded bolts.
GB / T 5781-2016 "Hexagon Lub Taub Hau Bolts Tag Nrho Xov Qib C" yog tib yam li GB / T 5780-2016 "Hexagon Lub Taub Hau Bolts Qib C" tshwj tsis yog tias cov khoom tsim los ntawm cov xov tag nrho.
GB / T 5783-2016 "Hexagon taub hau bolts nrog tag nrho cov xov" yog tib yam li GB / T 5782-2016 "Hexagon taub hau bolts" tshwj tsis yog tias cov khoom yog ua los ntawm tag nrho cov xov thiab lub npe ntev ntawm qhov nyiam ntev specification yog mus txog 200 hli.
Yog li ntawd, hauv kev tshuaj xyuas hauv qab no, nws tsuas yog tsim nyog los tham txog qhov sib txawv ntawm GB / T 5780-2016 "Hexagon Head Bolts Class C" thiab GB / T 5782-2016 "Hexagon Head Bolts".
2. Cov khoom sib txawv:
Cov khoom qib ntawm bolts tau muab faib ua qib A, B thiab C. Cov khoom qib yog txiav txim siab los ntawm qhov ua siab ntev. Qib A yog qhov tseeb tshaj plaws, thiab qib C yog qhov tsawg tshaj plaws.
GB / T 5780-2016 "Hexagon taub hau bolts C qib" qhia txog C qib precision bolts.
GB / T 5782-2016 "Hexagon head bolts" stipulates cov bolts nrog qib A thiab qib B precision.
Hauv GB / T 5782-2016 "Hexagon Head Bolts" tus qauv, Qib A yog siv rau bolts nrog d = 1.6mm ~ 24mm thiab l≤10d lossis l≤150mm (raws li tus nqi me dua); Qib B yog siv rau bolts nrog d> 24mm lossis Bolts nrog l> 10d lossis l> 150mm (qhov twg me dua).
Raws li lub teb chaws tus qauv GB / T 3103.1-2002 "Tolerance Bolts, Screws, Studs thiab Ceev rau Fasteners", sab nraud xov kam rau siab qib ntawm bolts nrog qib A thiab B precision yog "6g"; Kev kam rau siab ntawm cov xov sab nraud yog "8g"; Lwm qhov kev kam rau siab ntawm cov bolts txawv raws li qhov tseeb ntawm qib A, B, thiab C.
3. Cov khoom siv sib txawv:
Raws li cov kev cai ntawm lub teb chaws tus qauv GB / T 3098.1-2010 "Mechanical Properties of Fasteners Bolts, Screws thiab Studs", mechanical zog ntawm bolts ua los ntawm carbon steel thiab alloy steel nyob rau hauv cov xwm txheej ntawm ib puag ncig dimension ntawm 10 ℃ ~ 35 ℃ Muaj 10 qib, 4.6, 4.8, 5.6, 5.8, 6.8, 8.8, 9.8, 10.9, 12.9, 12.9.
Raws li cov kev cai ntawm lub teb chaws tus qauv GB / T 3098.6-2014 "Mechanical Properties of Fasteners - Stainless Steel Bolts, Screws thiab Studs", nyob rau hauv cov xwm txheej ntawm ib puag ncig qhov ntev ntawm 10 ℃ ~ 35 ℃, cov qib kev ua tau zoo ntawm bolts ua los ntawm stainless steel yog raws li nram no:
Bolts ua los ntawm austenitic stainless hlau (xws li A1, A2, A3, A4, A5 pawg) muaj cov cuab yeej cuab yeej cuab tam 50, 70, 80. cov pab pawg hlau, thiab qhov thib ob cim cov qib kev ua tau zoo, sib cais los ntawm kev sib tsoo, xws li A2-70, tib yam hauv qab no)
Bolts ua los ntawm C1 pawg martensitic stainless hlau muaj cov cuab yeej cuab tam qib ntawm 50, 70, thiab 110;
Bolts ua los ntawm C3 pawg martensitic stainless hlau muaj cov cuab yeej cuab tam chav kawm ntawm 80;
Bolts ua los ntawm C4 pawg martensitic stainless hlau muaj cov cuab yeej cuab yeej qib ntawm 50 thiab 70.
Bolts ua los ntawm F1 martensitic stainless hlau muaj txhua yam khoom qib 45 thiab 60.
Raws li lub teb chaws tus qauv GB / T 3098.10-1993 "Mechanical zog ntawm fasteners - Bolts, screws, studs thiab ceev ua los ntawm non-ferrous hlau":
Cov khoom siv kho tshuab ntawm bolts ua los ntawm tooj liab thiab tooj liab alloys yog: CU1, CU2, CU3, CU4, CU5, CU6, CU7;
Cov yam ntxwv ntawm bolts ua los ntawm txhuas thiab txhuas alloys yog: AL1, AL2, AL3, AL4, AL5, AL6.
Lub teb chaws tus qauv GB / T 5780-2016 "Class C Hexagon Head Bolts" yog tsim rau qib C hexagon taub hau bolts nrog xov specifications M5 rau M64 thiab kev kawm qib 4.6 thiab 4.8.
Lub teb chaws tus qauv GB / T 5782-2016 "Hexagon taub hau bolts" yog haum rau xov specifications M1.6 ~ M64, thiab cov qib kev kawm yog 5.6, 8.8, 9.8, 10.9, A2-70, A4-70, A2-50, A4-50, Qib A thiab B hex taub hau bolts rau CU2, CU3 thiab AL4.
Cov saum toj no yog qhov sib txawv tseem ceeb ntawm cov 4 feem ntau siv bolts.
Hauv kev siv cov tswv yim, tag nrho cov xov bolts tuaj yeem siv los hloov cov xov tsis muaj xov tag nrho, thiab cov bolts qib siab tuaj yeem siv los hloov cov qib qis qis.
Txawm li cas los xij, tag nrho cov xov bolts ntawm tib qhov kev qhia tshwj xeeb yog kim dua li cov xov tsis muaj xov tag nrho, thiab cov qib kev ua tau zoo yog kim dua cov qib qis.
Yog li ntawd, nyob rau hauv ib txwm lub sij hawm, bolts yuav tsum tau xaiv raws li tiag tiag xav tau kev pab, thiab tsuas yog nyob rau hauv tshwj xeeb zaus yuav tsum "hloov tag nrho cov faults" los yog "hloov highs nrog lows".
Post lub sij hawm: Oct-20-2022