1. Yuav ua li cas yog phab ntsa thickness kam rau ua piv ntawm seamless thiab welded kav?
Seamless kav feem ntau muaj qhov dav dua thiab tsawg dua cov phab ntsa thickness kam rau ua piv rau welded kav, tshwj xeeb tshaj yog nyob ib ncig ntawm lub voj voog. Qhov no yog vim qhov kev sib tw centering thaum lub sij hawm tho. Cov ntawv thov tseem ceeb yuav xav tau kev txiav txim siab ntev dua.
2. Qhov txawv ntawm "Kub Tiav" thiab "Cold Drawn" seamless yeeb nkab yog dab tsi?
Kub tiav:Cov yeeb nkab yog tsim thiab ua tiav ntawm qhov kub thiab txias. Nws muaj ib tug scaled nto tab sis yog ntau ductile thiab tsawg kim.
Cold Drawn:Qhov kub- cov yeeb nkab tiav yog ua tiav ntawm chav tsev kub los ntawm qhov tuag. Qhov no ua rau lub ntsej muag du, nruj dua qhov ntev, thiab muaj zog ntxiv, tab sis tus nqi siab dua.
3. Dab tsi yog cov ntawv thov rau seamless carbon steel kav?
Lawv tau siv rau hauv cov kev pabcuam tseem ceeb thiab xav tau xws li:
Kev Tshawb Fawb Roj thiab Roj (Lwm cov kav dej, casing, tubing)
Refinery thiab Petrochemical Cog (Cov txheej txheem kav, cua sov)
Fais fab Generation (Boiler tubes, chav kab)
Siab -Hydraulic Systems
Bearings thiab Mechanical Cheebtsam
4. Hydrostatic Testing yog dab tsi, thiab nws yog qhov yuav tsum tau rau cov kav dej seamless?
Kev ntsuam xyuas hydrostatic txheeb xyuas lub zog thiab xau- nruj ntawm cov yeeb nkab los ntawm kev sau nws nrog dej thiab nias nws mus rau theem teev tseg. Txawm hais tias muaj ntau cov qauv khoom (xws li ASTM A106) xav tau nws, cov kav dej tuaj yeem muab cov khoom tsis yog - kuaj kev puas tsuaj (NDT) hloov, yog tias pom zoo los ntawm tus neeg yuav khoom.
5. Dab tsi tsis yog -Kev Ntsuas Kev Ntsuas (NDT) txoj kev siv rau cov kav dej seamless?
Cov txheej txheem NDT uas muaj xws li:
Kev kuaj ultrasonic (UT):Txheeb xyuas qhov tsis xws luag hauv thiab subsurface.
Eddy Current Testing (ECT):Muaj txiaj ntsig zoo rau kev tshawb pom qhov chaw thiab ze rau - qhov chaw tsis zoo.
Kev Ntsuas Hydrostatic:Raws li tau hais, kev ntsuam xyuas siab ncaj ncees.
Magnetic Particle Inspection (MPI):Siv los kuaj xyuas qhov tsis xws luag.
