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    Imibhobho yentsimbi ye-Helical-seam ye-ASTM A139 yeBanga A, B, C

    Imibhobho yentsimbi ye-Helical-seam ye-ASTM A139 yeBanga A, B, C efakiweyo
    • Imibhobho yentsimbi ye-Helical-seam ye-ASTM A139 yeBanga A, B, C
    • Imibhobho yentsimbi ye-Helical-seam ye-ASTM A139 yeBanga A, B, C

    Inkcazelo emfutshane:

    Olu luhlu lubandakanya amabakala amahlanu ombane-fusion (arc)-welded helical-seam steel pipe.Umbhobho wenzelwe ukuhambisa ulwelo, igesi okanye umphunga.

    Ngemigca yemveliso ye-13 yombhobho wentsimbi ejikelezayo, iCangzhou Spiral Steel pipes group Co., Ltd.


    Iinkcukacha zeMveliso

    Iithegi zeMveliso

    IPropati yoomatshini

    IBanga A IBanga B IBanga C IBanga D IBanga E
    Amandla esivuno, min, Mpa(KSI) 330(48) 415(60) 415(60) 415(60) 445(66)
    Amandla okuqina, min, Mpa(KSI) 205(30) 240(35) 290(42) 315(46) 360(52)

    Ukuqulunqwa kwemichiza

    Isiqalelo

    Ukuqamba, Ubuninzi, %

    IBanga A

    IBanga B

    IBanga C

    IBanga D

    IBanga E

    Ikhabhoni

    0.25

    0.26

    0.28

    0.30

    0.30

    IManganese

    1.00

    1.00

    1.20

    1.30

    1.40

    Iphosphorus

    0.035

    0.035

    0.035

    0.035

    0.035

    Isulfure

    0.035

    0.035

    0.035

    0.035

    0.035

    Uvavanyo lweHydrostatic

    Ubude bombhobho ngamnye buya kuvavanywa ngumenzi kuxinzelelo lwe-hydrostatic oluya kuvelisa eludongeni lombhobho uxinzelelo olungekho ngaphantsi kwama-60% obona buncinci buchaziweyo bamandla esivuno kwindawo yobushushu begumbi.Uxinzelelo luya kumiselwa ngolu nxaki lulandelayo:
    P=2St/D

    Ukwahluka okuvumelekileyo kubunzima kunye nemilinganiselo

    Ubude bombhobho ngamnye buya kulinganiswa ngokwahlukileyo kwaye ubunzima bawo abuyi kwahluka ngaphezu kwe-10% ngaphezulu okanye i-5.5% phantsi kobunzima bethiyori, kubalwe kusetyenziswa ubude bayo kunye nobunzima bayo ngobude beyunithi.
    Idayamitha yangaphandle ayisayi kwahluka ngaphezu kwe ±1% kwidayamitha echaziweyo yangaphandle echaziweyo.
    Ubunzima bodonga nakweyiphi na indawo abuyi kuba ngaphezu kwe-12.5% ​​phantsi kobukhulu bodonga oluchaziweyo.

    Ubude

    Ubude obubodwa obungakhethiyo: 16 ukuya ku-25ft (4.88 ukuya ku-7.62m)
    Ubude obuphindwe kabini obungenamkhethe: ngaphezulu kwe-25ft ukuya kwi-35ft (7.62 ukuya kwi-10.67m)
    Ubude obufanayo: ukwahluka okuvumelekileyo ±1in

    Iyaphela

    Iimfumba zemibhobho ziya kubonelelwa ngeziphelo ezicacileyo, kwaye i-burrs ekupheleni iya kususwa.
    Xa isiphelo sombhobho esichazwe ukuba sibe yi-bevel siphela, i-angle iya kuba ngama-30 ukuya kuma-35 degrees

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