1. Dab tsi yog qhov tseem ceeb ntawm kev tsim khoom sib txawv ntawm seamless thiab welded kab yeeb nkab?
Teb:Seamless yeeb nkab yog tsim los ntawm cov khoom cylindrical steel billet uas yog rhuab thiab pierced los ntawm qhov chaw los tsim ib lub plhaub hollow, uas yog ces elongated thiab dov mus rau qhov yuav tsum tau loj. Welded yeeb nkab yog tsim los ntawm dov steel phaj los yog coil rau hauv ib lub cylindrical zoo thiab ces welding seam raws nws ntev.
2. Dab tsi yog qhov tseem ceeb ntawm kev siv cov yeeb nkab seamless tshaj welded yeeb nkab?
Teb:Qhov zoo tshaj plaws yog qhov tsis muaj longitudinal weld seam. Qhov no ua rau seamless yeeb nkab inherently muaj zog thiab txhim khu kev qha nyob rau hauv lub siab, siab kub, thiab corrosive ib puag ncig, raws li cov weld seam yog feem ntau lub weakest point nyob rau hauv cov yeeb nkab.
3. Nyob rau hauv qhov tseem ceeb roj & roj daim ntawv thov yog seamless yeeb nkab yuav tsum tau?
Teb:Seamless yeeb nkab feem ntau raug tso cai rau siab - siab, siab - qhov kub thiab txias (HPHT) qhov dej, kev pabcuam qaub (qhov twg H₂S gas nyob), cov dej ntws tawm sab nraud, cov ntawv thov dej tob, thiab cov kab xa hluav taws xob hauv qhov xav tau. Cov ntawv thov no xav tau qib siab tshaj plaws ntawm cov qauv kev ncaj ncees.
4. "Sour Service" txhais li cas, thiab yog vim li cas seamless yeeb nkab nyiam rau nws?
Teb:Sour Service yog hais txog ib puag ncig uas muaj hydrogen sulfide (H₂S). H₂S tuaj yeem ua rau Sulfide Stress Cracking (SSC). Seamless yeeb nkab, nrog nws cov qauv homogenous thiab tsis muaj vuam seam, tsis tshua muaj kev cuam tshuam rau qhov pib ntawm SSC thiab feem ntau tau teev tseg rau cov kev pabcuam tseem ceeb.
5. Yuav ua li cas cov phab ntsa thickness sib xws ntawm seamless yeeb nkab piv rau welded yeeb nkab?
Teb:Seamless yeeb nkab feem ntau muaj tsawg dua cov phab ntsa tuab nyob ib ncig ntawm nws ncig (lub npe hu ua eccentricity) piv rau siab - zoo welded kav ua los ntawm precisely dov phaj. Qhov no yog qhov chaw soj ntsuam tseem ceeb rau cov kav dej seamless, vim tias ntau dhau eccentricity tuaj yeem ua rau tsis ua hauj lwm nyob rau hauv siab.
