1. ** Dab tsi yog "LSAW" txhais tau tias? **
"LSAW" sawv rau ** Longitudinal submerged Arc Welded **. Nws yog hais txog ib hom yeeb nkab steel tsim los ntawm kev sib sau cov phiaj hlau (skelp) rau hauv cov nplais uas muaj kev sib tw nrog cov yeeb nkab ntev (ntev). Lub npoo yog ces welded rau sab hauv thiab sab nraud siv cov submerged Arc vuam (pom) cov txheej txheem, qhov twg arc raug faus nyob rau hauv ib txheej ntawm granular flux.
2. ** SSAWW cov yeeb nkab kuaj xyuas kom zoo? **
Swshaw (kauv subrerged arc welded) yeeb nkab undergoes nyuaj siab kuaj:
* ** TSIS {- Kev sim tshuaj (ndt): ** Weld SEAM yog tshuaj xyuas raws nws qhov ntev tau kuaj (RT) los tshawb xyuas sab hauv lossis sab nrauv.
* ** HYDROSTATIC TESTING: ** Txhua ntu ntaub sib yeeb
* ** Cov cuab yeej cuab tam sim: ** Cov hnoos qeev yog coj los ntawm cov yeeb nkab lub cev thiab weld thaj chaw rau lub zog tensile, pog vim muaj zog (charpy v - thav duab.
* ** Kev kuaj xyuas qhov ntev: ** Qhov tseem ceeb ntev zoo li txoj kab uas hla, phab ntsa tuab, ncaj, thiab ntev ntsuas.
* ** Soj ntsuam pom: ** Nto qhov tsis xws luag zoo li cov kab nrib pleb, pits, lossis unacceptable weld profiles raug tshuaj xyuas.
3. ** Dab tsi yog lsaw thiab hsaw? **
* ** LSAWW: ** Sawv rau ** Longitudinal submerged arc welded **. Cov kav dej muaj ib qho ncaj Weld leeg mus sib txuas rau cov yeeb nkab axis. Lawv feem ntau yog siv rau cov kab hniav ntau dua thiab siab - qhov kev siv hluav taws xob zoo li cov roj thiab roj kis.
* ** HSAWW: ** Lo lus no yog ** tsis yog txheem **. Nws yog tej zaum tsis meej pem lossis tsis nco qab. Nws feem ntau yog hais txog ** ssaw (kauv subdgerged arc welded) ** Yeeb, qhov twg Weld Seam yog muab kauv yog kauv yog kauv yog kauv yog kauv yog kauv yog kauv yog kauv yog kauv yog kauv yog kauv yog kauv yog kauv yog kauv yog kauv yog kauv yog kauv yog kauv yog kauv yog kauv yog kauv yog kauv yog kauv yog kauv yog kauv yog kauv yog kauv yog kauv yog kauv yog kauv yog kauv yog kauv yog kauv yog kauv yog kauv yog kauv yog kauv yog kauv yog kauv yog kauv yog kauv yog kauv yog kauv yog kauv yog kauv yog kauv yog kauv yog kauv yog kauv yog kauv yog kauv yog kauv yog kauv yog muab kauv (helical) ib ncig ntawm cov yeeb nkab. SSAW kav tseem ua tau siv submerged arc vuam txheej txheem tab sis tsim los ntawm kev txuas ntxiv coam nrog ib tug kauv sab nrauv. Lub "H" tej zaum yuav ua txhaum rau "helical".
4. ** SSAWW cov yeeb nkab kov yeej? **
SSaw Yeeb Nkaus Cov Hluav Taws Xob Sab Hauv Sab Nraud Zoo vim muaj ntau yam:
* ** Cov txheej txheem Weld muaj zog: ** Cov txheej txheem ntawm Arc vuam ua rau muaj kev sib sib zog nqus thiab siab}}} zoo welds cov khoom siv zoo.
* ** Khoom siv lub zog: ** Ua los ntawm high - lub zog steel phaj / lab cov rooj sib tham tau txog qib.
* ** Phab ntsa tuab: ** Tsim nrog phab ntsa tuab los tiv thaiv lub zog sab hauv thiab lub nra sab nraud.
* ** KAUV PAUV PAUB: ** KAUV WELD Kev Nyuaj Siab Tuaj yeem muab faib Hoop Kev Nyuaj Siab Txawv, txawm tias lub zog tseem ceeb yog los ntawm cov ntaub ntawv thiab weld zoo. Qhov tseem ceeb, nws undergoes hydrostatic kuaj kom pom nws lub siab muaj peev xwm.
5. ** Dab tsi yog qhov sib txawv ntawm ERW thiab LSAWAWFF? **
Lub ntsiab sib txawv ntawm ERW (hluav taws xob tiv thaiv welded) thiab lsaw (longitudinal submered arc welded) kav yog:
* ** Kev tsim & Vuam txheej txheem: ** ERW cov yeeb nkab yog tsim los ntawm dov steel chev rau hauv lub tog raj kheej thiab dhau nws los ntawm cov elecodes. Siab - zaus} zaus hluav taws xob tam sim no cua sov thiab tsis pub cov npoo ua ke tsis muaj chaw muab hlau. LSAWW cov yeeb nkab yog tsim los ntawm cov phaj hlau, thiab cov leeg ntev ntev yog welded siv cov txheej txheem pom nrog cov tshuaj xaim hluav taws xob thiab cov kab hlau muaj kev sib xyaw.
* ** Weld Zoo & Penetation: ** Pom (siv rau LSAW) Niaj hnub nimno HFW (siab {- zaus welded, thiab pom yog feem ntau, tab sis pom yog qhov tseem ceeb rau cov ntawv qhia zoo, siab} cov ntawv thov tuab thiab phab ntsa tuab.
* ** Qhov ntau thiab tsawg kawg nkaus: ** ERW / HFW yog qhov tseem ceeb rau me me rau nruab nrab diameters (txog li ntawm ib ncig 24 nti). LSAW tau siv rau ntau lub diameters (feem ntau 16 nti thiab saum toj no).
* ** Cheeb Tsam Cua Kub (Haz): ** ERW muaj lub hwj chim loj heev. LSAW muaj ib qho Wider Haz, yuav tsum tau tswj hwm thaum tsim khoom.
* ** Cov ntawv thov: ** ERW tau dav siv nyob rau hauv qis {{0} cov ntawv thov siab, thiab cov raj xa khoom me me. LSAW tau nyiam rau loj- txoj kab uas hla, thiab piling rau qhov chaw Weld qhov chaw vam meej yog qhov tseem ceeb.
