Mapaipi achitsulo nthawi zambiri amagawidwa m'mapaipi opanda zitsulo komanso mipope yachitsulo yolumikizidwa molingana ndi njira yopangira. Nthawi ino ife makamaka kuyambitsa mipope zitsulo welded, ndiye seamed zitsulo mapaipi. Kupangaku ndikupinda ndikugubuduza zosoweka za chitoliro (mbale zachitsulo ndi zingwe zachitsulo) m'magawo ofunikira popanga njira zosiyanasiyana. Poyerekeza ndi chitsulo chosakanizika chitoliro welded chitoliro, ali mkulu mankhwala mwatsatanetsatane, makamaka mkulu khoma makulidwe mwatsatanetsatane, zida zosavuta chachikulu, phazi laling'ono, makhalidwe a ntchito mosalekeza ndi kusinthasintha kupanga kupanga, chitoliro welded ayenera kugawidwa m'magulu atatu: ozungulira kumizidwa. arc welded chitoliro, msoko wowongoka wambali ziwiri womiza arc welded chitoliro, ndi chitoliro chowongoka chokwera pafupipafupi kukana.

1. Spiral kumizidwa arc welded chitoliro

Zopangira za spiral steel pipe (SSAW) ndi coil, waya wowotcherera komanso flux. Asanapangidwe, mzerewo umadutsa molingana, kudula m'mphepete, kupanga m'mphepete, kuyeretsa pamwamba ndi kutumiza ndi kupiringa. The kuwotcherera kusiyana ulamuliro chipangizo ntchito kuonetsetsa kuti kuwotcherera kusiyana akwaniritsa zofunika kuwotcherera M'pofunika mosamalitsa kulamulira m'mimba mwake chitoliro, misalignment ndi kuwotcherera kusiyana. Pambuyo kudula mu chitoliro chimodzi chachitsulo, mapaipi atatu oyambirira a gulu lirilonse ayenera kuyang'anitsitsa kachitidwe koyamba kuti ayang'ane makina, kapangidwe ka mankhwala, kuphatikizika kwa dziko ndi pamwamba pa weld. Pambuyo poyang'anitsitsa khalidwe ndi zosawononga kuti zitsimikizire kuti njira yopangira chitoliro ndiyoyenerera, ikhoza kukhazikitsidwa mwalamulo.

2. Msoko wolunjika pansi pa arc welded chitoliro

Nthawi zambiri, msoko wowongoka umalowa mu arc welded pipe (LSAW) amapangidwa ndi chitsulo mbale. Pambuyo popanga njira zosiyanasiyana, chitoliro chowotcherera chimapangidwa ndi kuwotcherera mbali ziwiri zamadzimadzi komanso kukulitsa kwapambuyo. Njira yopangira chitoliro cha msoko wowongoka womira pansi pamadzi ndi UO (UOE). , RB (RBE), JCO (JCOE), etc.

UOE wowongoka msoko womira pansi pa arc welded kupanga chitoliro:

Pali njira zitatu zopangira njira yopangira chitoliro cha UOE LSAW: chitsulo chopindika chisanadze, U kupanga ndi O kupanga. Njira iliyonse imagwiritsa ntchito makina osindikizira apadera kuti amalize kupindika, U kupanga ndi O kupanga m'mphepete mwa mbale yachitsulo. Njira zitatu, mbale zitsulo ndi olumala mu chubu zozungulira, ndi JCOE molunjika msoko kumizidwa arc welded chitoliro kupanga ndondomeko: pambuyo angapo kupondaponda pa JC0 kupanga makina, theka loyamba la mbale zitsulo mbamuikha mu mawonekedwe J, ndiyeno theka la mbale yachitsulo imapanikizidwa mu mawonekedwe a J, kupanga mawonekedwe a C, kukakamizidwa kuchokera pakati kuti apange chubu lotseguka "O" -chopanda kanthu.

Kuyerekeza kwa JCO ndi njira zopangira UO:

Kupanga kwa JCO ndikopanga kukakamiza kopitilira muyeso, komwe kumasintha njira yopangira chitoliro chachitsulo kuchokera ku masitepe awiri a UO kupanga masitepe angapo. Panthawi yopanga, mbale yachitsulo imakhala yopunduka mofanana, kupanikizika kotsalira kumakhala kochepa, ndipo pamwamba pake simakanda. Pali kusinthasintha kwakukulu mu kukula ndi mawonekedwe osiyanasiyana a khoma la makulidwe, omwe amatha kupanga zinthu zonse zazikulu-buku ndi mankhwala ang'onoang'ono, osati mipope yachitsulo yokhala ndi mipiringidzo yaing'ono, komanso mipope yachitsulo yaying'ono. mipope zitsulo mipanda, makamaka Kupanga apamwamba makulidwe mipope, makamaka kupanga ang'onoang'ono ndi sing'anga-m'mimba mwake wandiweyani mipope, ali ndi ubwino wosayerekezeka pa njira zina, ndipo akhoza kukwaniritsa zofunika kwambiri kwa owerenga zitsulo chitoliro specifications. . UO kupanga utenga U ndi O kukakamiza kupanga kawiri, amene yodziwika ndi Iwo ali ndi mphamvu yaikulu ndi linanena bungwe mkulu. Nthawi zambiri, kutulutsa kwapachaka kumatha kufika matani 300,000 mpaka 1,000,000, omwe ndi oyenera kupanga zambiri zamtundu umodzi.

3. Molunjika msoko mkulu pafupipafupi kukana welded chitoliro

Chitoliro chowongoka chowongoleredwa chowongoka chowongoka (RW) chimapangidwa pogwiritsa ntchito mawonekedwe akhungu ndi kuyandikira kwanthawi yayitali kwambiri kutentha ndikusungunula m'mphepete mwa chubu chopanda kanthu pambuyo popanga koyilo yotentha yopangidwa ndi makina opangira. Kupanikizika-welded pansi pa zochita za extrusion wodzigudubuza.