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    Helical-msoko wa carbon steel mapaipi ASTM A139 Gulu A, B, C

    Helical-msoko wa carbon steel mapaipi ASTM A139 Gulu A, B, C Chithunzi Chowonetsedwa
    • Helical-msoko wa carbon steel mapaipi ASTM A139 Gulu A, B, C
    • Helical-msoko wa carbon steel mapaipi ASTM A139 Gulu A, B, C

    Kufotokozera Kwachidule:

    Izi zikuphatikiza magawo asanu a electric-fusion(arc)-welled helical-seam steel pipe.Chitolirocho chimapangidwira kunyamula madzi, gasi kapena nthunzi.

    Ndi mizere 13 yopanga mizere yozungulira zitsulo, Cangzhou Spiral Steel mapaipi gulu Co., Ltd. imatha kupanga mipope yachitsulo ya helical-msoko ndi m'mimba mwake kuchokera 219mm mpaka 3500mm ndi makulidwe a khoma mpaka 25.4mm.


    Tsatanetsatane wa Zamalonda

    Zolemba Zamalonda

    Mechanical Property

    Gulu A Gulu B Gulu C Gulu D Gulu E
    Yield strength, min, Mpa(KSI) 330 (48) 415 (60) 415 (60) 415 (60) 445 (66)
    Tensile mphamvu, min, Mpa(KSI) 205 (30) 240 (35) 290 (42) 315 (46) 360 (52)

    Chemical Composition

    Chinthu

    Kupanga, Max,%

    Gulu A

    Gulu B

    Gulu C

    Gulu D

    Gulu E

    Mpweya

    0.25

    0.26

    0.28

    0.30

    0.30

    Manganese

    1.00

    1.00

    1.20

    1.30

    1.40

    Phosphorous

    0.035

    0.035

    0.035

    0.035

    0.035

    Sulfure

    0.035

    0.035

    0.035

    0.035

    0.035

    Kuyesedwa kwa Hydrostatic

    Utali uliwonse wa chitoliro uyenera kuyesedwa ndi wopanga ku mphamvu ya hydrostatic yomwe idzapangitse mukhoma wa chitoliro kupsinjika kosachepera 60% ya mphamvu zokolola zosachepera zomwe zafotokozedwa kutentha.Kupanikizika kumatsimikiziridwa ndi equation yotsatirayi:
    P=2St/D

    Kusiyanasiyana Kololedwa Pakulemera ndi Makulidwe

    Utali uliwonse wa chitoliro uyenera kuyezedwa padera ndipo kulemera kwake sikuyenera kusiyana kuposa 10% kuposa kapena 5.5% pansi pa kulemera kwake, kuwerengeredwa pogwiritsa ntchito kutalika kwake ndi kulemera kwake pa kutalika kwake.
    Kuzungulira kwakunja sikuyenera kusiyanasiyana kupitilira ± 1% kuchokera m'mimba mwake mwadzina.
    Makulidwe a khoma nthawi iliyonse sayenera kupitirira 12.5% ​​pansi pa makulidwe omwe atchulidwa.

    Utali

    Kutalika kwachisawawa chimodzi: 16 mpaka 25ft (4.88 mpaka 7.62m)
    Kutalika kwapawiri: kupitirira 25ft mpaka 35ft(7.62 mpaka 10.67m)
    Utali wofanana: kusiyanasiyana kovomerezeka ±1in

    Kutha

    Milu ya mipope iyenera kukhala ndi malekezero omveka, ndipo ma burrs kumapeto kwake adzachotsedwa.
    Pamene mapeto a chitoliro amatchulidwa kuti ndi bevel amatha, ngodya iyenera kukhala 30 mpaka 35 digiri

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