1. Thaum twg yuav tsum tau teev cov yeeb nkab seamless tshaj lub welded yeeb nkab?
Cov kav dej seamless feem ntau tau teev tseg rau siab -siab, siab- qhov kub thiab txias, thiab cov kev pabcuam tseem ceeb (xws li hauv cov chaw tsim hluav taws xob thiab cov refineries) vim tias qhov tsis muaj vuam seam tshem tawm qhov tsis muaj zog. Cov kav dej welded feem ntau pheej yig dua thiab tsim nyog rau txoj kab uas hla loj dua thiab tsis tshua muaj kev siv tseem ceeb -10.
2. Qhov txawv ntawm "pipe" thiab "tube" yog dab tsi?
Thaum cov ntsiab lus qee zaum siv sib hloov, hauv kev lag luam,cevyog feem ntau teev los ntawm lub nominal txoj kab uas hla (NPS) thiab lub sij hawm (phab ntsa thickness) thiab yog siv rau cov kua kis tau tus mob.Tubefeem ntau tau teev tseg los ntawm nws qhov tseeb sab nraud txoj kab uas hla (OD) thiab phab ntsa tuab thiab feem ntau yog siv rau cov qauv, kev sib hloov hluav taws xob, lossis kev siv tshuab precision -2.
3. Dab tsi yog qhov zoo ntawm kev siv cov kav dej txias -kos precision seamless kav?
Txias- cov kav dej tau muab cov kav ntev dua, ua kom tiav qhov zoo dua, thiab tuaj yeem tsim nrog cov phab ntsa nyias nyias thiab cov kab me me dua cov kav dej kub - dov. Qhov no ua rau lawv zoo tagnrho rau hydraulic thooj voos kheej kheej, automotive qhov chaw, thiab lwm yam precision mechanical applications -1-9.
4. Vim li cas qis - carbon steel (xws li 10# lossis 20#) nyiam rau cov kab xa dej?
Tsawg- carbon steel yog softer, ductile ntau, thiab yooj yim rau kev tsim thiab weld dua siab dua - carbon steels. Qhov no ua rau nws zoo tagnrho rau kev tsim cov raj xa dej uas yuav tsum tau khoov rau ntawm - qhov chaw thiab kom ntseeg tau cov pob qij txha txhim khu kev qha uas tsis muaj kev pheej hmoo ntawm vuam tawg -5-9.
5. Dab tsi yog qhov txawv ntawm cov qauv steel yeeb nkab thiab siab -lub zog qis- alloy (HSLA) steel yeeb nkab?
Cov yeeb nkab dav dav (xws li ASTM A53 Gr. B) tso siab rau cov pa roj carbon ntau rau nws lub zog.HSLAcov yeeb nkab steel (xws li qee qib hauv API 5L lossis ASTM A500) ntxiv me me ntawm cov ntsiab lus alloying xws li vanadium los yog niobium kom muaj zog thiab tawv thaum tuav tau zoo weldability thiab formability, tsis muaj qhov sib npaug ntawm cov ntsiab lus carbon -7.
