Chii chinonzi ERW simbi pombi? Musiyano mukuru pakati peERW simbi pombi (Electric Resistance Welding, yakapfupikiswa seERW) uye musono pombi yesimbi ndeyekuti ERW ine weld seam, inovawo kiyi yemhando yeERW simbi pombi. Mazuva ano ERW simbi yekugadzira pombi tekinoroji uye midziyo, nekuda kwepasirese Kunyanya nekuedza kusingadzoreki kweUnited States nedzimwe nyika mumakore apfuura, kusakwana kweERW simbi mapaipi kwakagadziriswa zvinogutsa. Vamwe vanhu vanopatsanura kusasonwa kweERW simbi mapaipi kuita geometric seamlessness uye kusasonwa kwemuviri. Geometric seamlessness zvinoreva kuchenesa ERW simbi pombi. Mukati uye kunze burrs. Nekuda kwekuenderera mberi kwekuvandudza uye kuvandudzwa kwechimiro chemukati burr yekubvisa sisitimu uye maturusi ekucheka, iyo mukati maburrs makuru uye epakati-diameter simbi mapaipi akagadziridzwa zviri nani. Iwo emukati maburrs anogona kudzorwa kutenderedza -0.2mm~+O.5mm uye akasununguka panyama. Seamization inoreva mutsauko uripo pakati pemetallographic chimiro mukati meweld uye base simbi, zvichikonzera kudzikira kwemakanika enzvimbo yeweld. Matanho anofanirwa kutorwa kuti ive yakafanana uye inoenderana. Iyo yakakwira-frequency welding yekudziya yeERW mapaipi esimbi inoita kuti chubhu ishaikwe Iyo tembiricha yekuparadzira gradient padhuze nekumucheto inoumba nzvimbo yakanyungudutswa, semi-yakanyunguduka nzvimbo, inopisa zvakanyanya, nzvimbo yakajairika, isina kukwana normalizing zone, nzvimbo inodziya. , dzimwe nzvimbo dzehunhu. Pakati pavo, chimiro cheiyo superheated zone ndeye austenite nekuda kwekudziya kwekupisa pamusoro pe1000 ° C. Mbeu dzinokura nekukurumidza, uye chikamu chakaoma uye chakaoma chekristaro chichaumbwa pasi pemamiriro ekutonhora. Pamusoro pezvo, kuvepo kwetembiricha gradient kunoburitsa welding kusagadzikana. Izvi zvinoguma nemamiriro ezvinhu apo mechanical properties ye weld area yakaderera pane iyo yehwaro zvinhu uye iyo yemuviri seamlessness inowanikwa. Kuburikidza neyakajairwa kupisa kupisa muitiro we weld seam, ndiko kuti, kushandisa yepakati frequency induction kudziyisa mudziyo kupisa iyo weld seam nzvimbo kusvika AC3 (927 ° C), uyezve kuita yekutonhodza mhepo nekureba kwe60m. uye kumhanya kwe20m/min, uyezve kutonhora kwemvura kana zvichidikanwa. Kushandiswa kweiyi nzira kunogona kuita kubvisa kushushikana, kupfavisa uye kunatsiridza chimiro, uye kuvandudza yakazara ma mechanical properties ye welding heat-affected zone, parizvino, emberi ERW mauniti epasirese agara atora nzira iyi kugadzirisa welds, uye akawana. zvibereko zvakanaka. Yepamusoro-soro ERW simbi mapaipi haisi chete Iyo weld seam isingagoni kuzivikanwa, uye weld seam coefficient inosvika 1, ichiwana machisi pakati peiyo weld nzvimbo chimiro uye hwaro zvinhu. Mapombi esimbi eERW ane mukana wekushandisa makoiri anopisa-akakungurutswa semidziyo yakabikwa, uye ukobvu hwemadziro hunogona kudzorwa zvakafanana paanenge ± 0.2mm. Migumo miviri yepombi yesimbi Maererano neAmerican APl standard kana GB/T9711.1 standard, ine zvakanakira kupera beveling uye yakatarwa-kureba kuendesa. Mumakore achangopfuura, akasiyana gasi pombi network mapurojekiti uye makambani egasi akatora zvakanyanya ERW mapaipi esimbi semapombi makuru esimbi mumapaipi emapaipi network.