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    Zvakanakira Kushandisa Mapaipi Esimbi Akanyudzwa Arc Welded Arc Pamapaipi Emvura Ari Pasi Pevhu

    Zvakanakira Kushandisa Mapaipi Esimbi Akanyudzwa Arc Welded Arc Pamapaipi Emvura Ari Pasi Pevhu Mufananidzo Unoratidzwa
    • Zvakanakira Kushandisa Mapaipi Esimbi Akanyudzwa Arc Welded Arc Pamapaipi Emvura Ari Pasi Pevhu

    Tsananguro pfupi:

    Pakuisa migero yemvura pasi pevhu, zvakakosha kusarudza mhando yepombi yakakodzera kuti ive nechokwadi chekuti inogara kwenguva refu uye inogara kwenguva refu. Sarudzo yakakurumbira yemigero yemvura pasi pevhu ipombi yakasungirirwa yakatenderedzwa, inozivikanwawo sepombi yesimbi yeSSAW.


    Ruzivo rweChigadzirwa

    Matagi eChigadzirwa

     Pombi yesimbi yeSSAWimhando yepombi yakasungirirwa yesimbi inonyungudutswa mumvura inowanzoshandiswa mumhando dzakasiyana-siyana dzemashandisirwo, kusanganisira mitsetse yepasi pevhu. Maitiro ayo akasiyana ekubatanidza simbi anoburitsa mapaipi ane dhayamita hombe ane ukobvu hwakafanana hwemadziro, zvichiita kuti ive yakakodzera kutakurwa mumvura yepasi pevhu.

    Zvivakwa zveMechanical

    giredhi resimbi

    simba shoma regoho
    Mpa

    Simba rekusimba

    Kureba kushoma
    %

    Simba shoma remagetsi
    J

    Ukobvu hwakatarwa
    mm

    Ukobvu hwakatarwa
    mm

    Ukobvu hwakatarwa
    mm

    patembiricha yekuyedzwa kwe
     

    16

    ＞16≤40

    3

    ≥3≤40

    		 ≤40

    -20℃

    0℃

    20℃
    S235JRH

    235

    225

    360-510

    360-510

    24

    -

    -

    27
    S275J0H

    275

    265

    430-580

    410-560

    20

    -

    27

    -
    S275J2H

    27

    -

    -
    S355J0H

    365

    345

    510-680

    470-630

    20

    -

    27

    -
    S355J2H

    27

    -

    -
    S355K2H

    40

    -

    -

    Chimwe chezvakanakira zvikuru kushandisa pombi dzesimbi dzakasungirirwa pasi pevhu dzakaita se spiral insided arc welded pamigero yepasi pevhu ndechekuti ine simba rakawanda uye inogara kwenguva refu. Maitiro ekubatanidza spiral anogadzira pombi yakasimba uye yakavimbika inogona kutsungirira kumanikidzwa nehuremu hwekuvigwa pasi pevhu. Simba iri rakakosha kudzivirira kudonha kwemvura uye kuona kuti pombi dzemvura dzinogara kwenguva refu.

    Pamusoro pezvo, mapaipi esimbi eSSAW haaparadzi ngura, zvichiita kuti ive sarudzo yakanaka yekushandisa pasi pevhu uko mapaipi anobatwa nehunyoro nezvimwe zvinhu zvakatipoteredza. Kudzivirira ngura uku kunobatsira kuwedzera hupenyu hwemapaipi ako uye kunoderedza kudiwa kwekugadzirisa nekugadzirisa nguva nenguva.

    Pombi Yemugero Wemvura Wepasi Pevhu

    Imwe bhenefiti yekushandisa pombi yesimbi yakasungirirwa yakanyungudutswa mumvura yakadzika midzi pamigero yepasi pevhu ndeyekuchinjika kwayo uye kuchinjika kwayo. Maitiro ekuchinjika akatenderedzwa anogona kugadzira mapaipi ane dhayamita dzakasiyana, zvichiita kuti akwanise kushandiswa mumapaipi emvura akasiyana-siyana. Pamusoro pezvo, kuchinjika kwepombi yesimbi yeSSAW kunoita kuti zvive nyore kuisa nekushandisa, kunyanya munzvimbo dzine nzvimbo dzakaoma kana zvipingamupinyi.

     

    Kuumbwa kweMakemikari

    Giredhi resimbi

    Rudzi rwekubvisa oxidation a

    % nehuremu, huwandu hwepamusoro

    Zita resimbi

    Nhamba yesimbi

    C

    C

    Si

    Mn

    P

    S

    Nb

    S235JRH

    1.0039

    FF

    0,17

    —

    1,40

    0,040

    0,040

    0.009

    S275J0H

    1.0149

    FF

    0,20

    —

    1,50

    0,035

    0,035

    0,009

    S275J2H

    1.0138

    FF

    0,20

    —

    1,50

    0,030

    0,030

    —

    S355J0H

    1.0547

    FF

    0,22

    0,55

    1,60

    0,035

    0,035

    0,009

    S355J2H

    1.0576

    FF

    0,22

    0,55

    1,60

    0,030

    0,030

    —

    S355K2H

    1.0512

    FF

    0,22

    0,55

    1,60

    0,030

    0,030

    —

    a. Nzira yekubvisa oxidation inotsanangurwa seinotevera:

    FF: Simbi yakafa zvizere ine zvinhu zvinosunga nitrogen muhuwandu hwakakwana kuti isunge nitrogen iripo (semuenzaniso 0,020% yeAl yose kana 0,015% yeAl inonyungudika).

    b. Kukosha kwakanyanya kwenitrogen hakushandi kana makemikari ari muchikamu ichi achiratidza huwandu hweAl hushoma hwe0,020% nechiyero cheAl/N che2:1, kana kana paine zvimwe zvinhu zveN-binding zvakakwana. Zvinhu zveN-binding zvinofanira kunyorwa muGwaro reKuongorora.

    Pamusoro pekusimba, kugara kwenguva refu, uye kuchinjika, mapaipi esimbi akasungirirwa mudenga arc anodhura zvishoma kana tichienzanisa nemamwe mapaipi. Maitiro ekubatanidza mudenga anoderedza mari yekugadzira, zvichiita kuti ive sarudzo inodhura zvishoma kumapurojekiti makuru emapaipi emvura. Kugara kwenguva refu uye zvinodiwa zvishoma zvekuchengetedza mapaipi esimbi eSSAW zvinobatsirawo mukuchengetedza mari yese muhupenyu hwepombi yemvura.

    Pombi yeSSAW

    Pamwe chete, kune zvakawanda zvakanakira kushandisa pombi dzesimbi dzakasungirirwa pasi pevhu dzakaita se spiral submerged arc, dzinosanganisira kusimba kwakasimba, kugara kwenguva refu, kuramba ngura, kuchinjika, uye kushanda zvakanaka kwemari. Hunhu uhwu hunoita kuti ive sarudzo yakavimbika uye inoshanda yekufambisa mvura pasi pevhu, kungave kwezvivakwa zvemaguta, maindasitiri, kana zvekurima.

    Muchidimbu, kana zvasvika pakusarudza pombi yakanakisisayemigero yemvura yepasi pevhu, pombi yesimbi yakasungirirwa pasi pevhu inotenderera ndiyo sarudzo yakanakisisa. Kugadzirwa kwayo kwakasungirirwa pasi pevhu kunopa simba, kugara kwenguva refu uye kuramba ngura zvinodiwa kuti ishande kwenguva refu, nepo kuchinjika kwayo uye kushanda kwayo zvakanaka zvichiita kuti ive sarudzo inokwezva mapurojekiti emapombi emvura ehukuru hwese. Nekusarudza pombi yesimbi yakasungirirwa pasi pevhu inotenderera, unogona kuve nechokwadi chekuvimbika uye kugara kwenguva refu kwemigero yako yemvura yepasi pevhu, zvichikupa rugare rwepfungwa nechivimbo muhurongwa hwako hwemvura.

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