Kuonetsetsa Ubwino ndi Miyezo mu LSAW Steel Pile Pipes

M'munda wamapaipi achitsulo, miyezo ya arc welded wowongoka msoko mapaipi zitsulo ndi zofunika.Imodzi mwa miyezo ndi GB/T3091-2008, yomwe imaphimba mitundu yosiyanasiyana ya mipope yachitsulo yowongoka, monga kukana kwanthawi yayitali.welded (RW) zitsulo mapaipi, pamwamba pa madziwelded (SAWL) mapaipi zitsulondi spiral seam kumizidwa arc welded (SAWH) mapaipi achitsulo.) Chitoliro chachitsulo.

Pamayendedwe otsika kwambiri, GB/T3091-2008 imanenanso kugwiritsa ntchitokanasonkhezereka welded zitsulo mapaipi.Izi magetsi welded mipope zitsulo, amene amadziwika kuti mipope woyera, ntchito kunyamula madzi, gasi, mpweya, mafuta, Kutentha nthunzi, madzi ofunda, etc. The specifications zitsulo mipope anasonyeza awiri mwadzina, ndi awiri akunja ndi khoma. makulidwe amatsatira malamulo a GB/T21835.Komanso, kutalika kwa chitoliro zitsulo akhoza kuyambira 300mm kuti 1200mm, ndipo akhoza atathana kutalika kapena awiri kutalika.

Zikafika pa nkhani zabwino, kutentha panthawi yoboola kumakhudza kwambiri.Mipope yachitsulo yowonjezera kutentha imafika kutentha pafupifupi 1200 ° C, ngakhale kuti mpweya wa carbon ndi ma alloying amatha kuchepetsa kutentha pang'ono.Chinthu chinanso chofunikira kuganizira ndikuchepetsa kuchuluka kwa sikelo panthawi yopindika yotentha, chifukwa izi zitha kukhudza moyo wa zida komanso mawonekedwe apamwamba.

Kutenthetsa ntchito ndi njira yofunika kwambiri popanga16Mn molunjika msoko chitsulo chitoliro.Popeza kuti ntchito zambiri zimachitika potentha, kuwongolera bwino kutentha kwa kutentha ndikofunikira kuti zinthu zomaliza zitsimikizike bwino.

Kuti mukhalebe wabwino ndi miyezo, kuwongolera kutentha panthawi yoboola ndikofunikira.Chitoliro chachitsulo chowongoka chowongoka cha GB/T3091-2008 chimatanthawuza kupatuka kovomerezeka mu kukula, mawonekedwe, kulemera ndi m'mimba mwake akunja ndi makulidwe a khoma.Kupatuka kovomerezeka kwa makulidwe a khoma lokhazikika kumasiyanasiyana malinga ndi giredi yopatuka, kuyambira pa S1 mpaka S5, ndipo giredi iliyonse imatchula kuchuluka kofananirako ndi kupatuka kochepa.

Kuwonjezera yokhazikika khoma makulidwe tolerances, sanali standardized khoma makulidwe tolerances amaonedwanso.Miyezo yopatuka (monga NS1 mpaka NS4) imaphatikizanso zopatuka kuti zitsimikizire kuwongolera bwino.Tiyenera kuzindikira kuti S imayimira makulidwe a khoma la chitoliro chachitsulo, ndipo D imayimira m'mimba mwake mwadzina wa chitoliro chachitsulo.

Kuonetsetsa kutsatiridwa ndi mfundo zimenezi n'kofunika kwambiri kupanga apamwamba longitudinal submerged arc welded zitsulo mulu mapaipi.Pokhala ndi kuwongolera bwino kwa kutentha ndi kulabadira zopatuka zovomerezeka, opanga amatha kukwaniritsa zomwe makasitomala amayembekeza ndikupereka zinthu zodalirika komanso zokhazikika.