Zinthu zopangidwa ndi zitsulo zosapanga dzimbiri zimagwiritsidwa ntchito kwambiri m'mafakitale ambiri ndi ntchito zake chifukwa cha magwiridwe antchito abwino komanso makhalidwe ake abwino. Lero, tikambirana za chitoliro chopanda zitsulo zosapanga dzimbiri chosapanga dzimbiri ndi chitoliro chachitsulo chosapanga dzimbiri cha ERW, komanso kusiyana pakati pa zinthu ziwirizi.
Pali kusiyana pakati pa chitoliro chachitsulo chosapanga dzimbiri cha ERW ndi chitoliro chopanda chimbudzi chachitsulo chosapanga dzimbiri. Chitoliro cha ERW ndi chidule cha Electric Resistance Welding. Chimagwiritsidwa ntchito kunyamula zakumwa monga mafuta, mpweya, ndi zina zotero, mosasamala kanthu za kupanikizika, ndipo chimagwira ntchito yofunika kwambiri m'mapaipi padziko lonse lapansi. Nthawi yomweyo, ndi chitoliro chachitsulo chosapanga dzimbiri. Mapaipi achitsulo ozungulira ndi amakona anayi opanda maulumikizidwe ndi ma profiles opanda mabowo amagwiritsidwa ntchito kunyamula zakumwa chifukwa cha mphamvu zawo zapamwamba zopindika komanso zozungulira, komanso kupanga zida zomangira ndi makina. Kawirikawiri, mapaipi a ERW ndi mapaipi achitsulo osapanga dzimbiri amagwiritsidwa ntchito pazinthu zosiyanasiyana.
Mapaipi osapanga dzimbiri opanda msoko amapangidwa ndi ma billet ozungulira, pomwe mapaipi osapanga dzimbiri a ERW amapangidwa ndi ma coil otentha opindidwa. Ngakhale kuti zipangizo ziwirizi ndi zosiyana kwambiri, ziyenera kudziwika kuti mtundu wa chinthu chomaliza - mapaipi umadalira kwambiri zinthu ziwirizi - kuwongolera khalidwe panthawi yopanga komanso momwe zinthuzo zimakhalira poyamba komanso mtundu wa zipangizozo. Mapaipi onsewa amapangidwa ndi chitsulo chosapanga dzimbiri chamitundu yosiyanasiyana, koma chodziwika kwambiri ndi chitoliro chopangidwa ndi chitsulo chosapanga dzimbiri 304.
Chidebe chozungulira chimatenthedwa ndikukankhidwira pa ndodo yobowoka mpaka chitakhala ndi dzenje. Pambuyo pake, kutalika ndi makulidwe awo zimayendetsedwa ndi njira zotulutsira. Pankhani yopanga mapaipi a ERW, njira yopangira imakhala yosiyana kwambiri. Mpukutuwo umapindika mbali ya axial, ndipo m'mbali mwake zimalumikizidwa kutalika kwake konse ndi kupondereza.
Machubu osapanga dzimbiri opanda msoko amamangidwa mokwanira pamzere wolumikizira ndipo amapezeka mu OD mpaka mainchesi 26. Kumbali inayi, ngakhale makampani apamwamba kwambiri achitsulo omwe ali ndi ukadaulo wa ERW amatha kungopeza mainchesi 24 okha.
Popeza mapaipi osalumikizana amatuluka, alibe malo olumikizirana mbali imodzi kapena mbali ina. Koma mapaipi a ERW amapangidwa ndi ma coil opindika pakati pa mzere wawo kotero amalumikizidwa kutalika kwake konse.
Kawirikawiri, mapaipi opanda msoko amagwiritsidwa ntchito pogwiritsira ntchito mphamvu yamagetsi, pomwe mapaipi a ERW amagwiritsidwa ntchito potumikira m'malo otsika komanso apakati.
Kuphatikiza apo, poganizira za chitetezo cha mapaipi osasunthika, amagwiritsidwa ntchito kwambiri m'mafakitale amafuta ndi gasi, kuyeretsa mafuta ndi mankhwala ena, ndipo mfundo yosatulutsa madzi ikufunika kuti anthu ndi mabizinesi akhale otetezeka. Nthawi yomweyo, mapaipi a ERW opangidwa bwino omwe ali pansi pa ulamuliro wokhwima angagwiritsidwenso ntchito pazinthu zofanana kupatula ntchito wamba monga mayendedwe amadzi, ma scaffolding ndi mpanda.
Zimadziwika kuti mkati mwa mapaipi a ERW nthawi zonse mumayang'aniridwa ndi njira zabwino zowongolera, kotero nthawi zonse zimakhala bwino kuposa mapaipi opanda msoko.
Pankhani ya ASTM A53, mtundu S umatanthauza wopanda msoko. Mtundu F - ng'anjo, koma kuwotcherera, mtundu E - kuwotcherera wokana. Ndizo zonse. Iyi ndiyo njira yosavuta yodziwira ngati chitoliro chili ndi msoko kapena ERW.
Langizo: ASTM A53 Giredi B ndi yotchuka kwambiri kuposa ma giredi ena. Mapaipi awa akhoza kukhala opanda kanthu popanda chophimba chilichonse, kapena akhoza kukhala ndi galvanized kapena hot-dip galvanized ndikupangidwa pogwiritsa ntchito njira yolumikizira kapena yopanda msoko. Mu gawo la mafuta ndi gasi, mapaipi a A53 amagwiritsidwa ntchito popanga zinthu komanso zosafunikira.
Ngati mukufuna zambiri zokhudza pulojekitiyi, chonde titumizireni uthenga wokhudza momwe zinthu zilili panopa, zambiri zokhudza kulumikizana ndi gulu la pulojekitiyi, ndi zina zotero.