Raug welded yeeb nkab
Welded yeeb nkab pib tawm raws li ntev, coiled ribbon ntawm cov hlau hu ua skelp. Cov tawv nqaij raug txiav rau qhov ntev uas xav tau, ua rau daim ntawv tiaj tus. Qhov dav ntawm daim ntawv ntawd luv dua yuav dhau los ua cov yeeb nkab sab nraud ib puag ncig, tus nqi uas tuaj yeem siv los laij nws qhov tshwm sim sab nraud.
Cov ntawv plaub fab tau pub los ntawm lub tshuab dov uas ua rau ob sab ntev mus rau ib leeg, sib sau ua lub tog raj kheej. Hauv ERW cov txheej txheem, cov hluav taws xob muaj hluav taws xob ntau tau hla ntawm cov ntug, ua rau lawv yaj thiab sib xyaw ua ke.
Qhov zoo ntawm ERW yeeb nkab yog tias tsis siv cov hlau sib xyaw thiab cov hlua txuas tsis tuaj yeem pom lossis hnov. Qhov ntawd tau tawm tsam rau ob npaug submerged arc vuam (DSAW), uas tawm tom qab qhov pom tseeb txuas cov hlaws uas yuav tsum tau muab tshem tawm raws li daim ntawv thov.
Cov txheej txheem tsim cov yeeb nkab tau txhim kho ntau xyoo. Tej zaum qhov kev nce qib tseem ceeb tshaj plaws yog qhov hloov pauv mus rau qhov hluav taws xob muaj hluav taws xob ntau rau kev siv vuam. Ua ntej xyoo 1970, kev siv hluav taws xob tsawg zaus tam sim no. Weld seams tsim los ntawm qis-zaus ERW muaj feem ntau ua rau xeb thiab ua tsis tiav.
Feem ntau cov yeeb nkab txuas hom xav tau kev kho cua sov tom qab tsim khoom.
Raug seamless yeeb nkab
Seamless piping pib ua cov khoom cylindrical hunk ntawm cov hlau hu ua billet. Thaum tseem kub, cov ntawv tau raug hla los ntawm lub hauv paus nrog lub mandrel. Cov kauj ruam tom ntej yog dov thiab ncab hollow billet. Cov ntawv sau tau raug thim rov qab thiab nthuav kom txog thaum nws ua tau raws qhov ntev, txoj kab uas hla thiab phab ntsa tuab raws li tau teev tseg los ntawm cov neeg siv khoom xaj.
Qee cov yeeb nkab tsis sib haum ua kom tawv tawv raws li lawv tau tsim, yog li kev kho cua sov tom qab tsim khoom tsis tas yuav tsum tau ua. Lwm tus xav tau kev kho cua sov. Tham nrog cov lus qhia tshwj xeeb ntawm cov yeeb nkab tsis sib haum uas koj tab tom txiav txim siab kawm seb nws puas yuav xav tau kev kho cua sov.
Keeb kwm kev xav thiab siv rooj plaub rau welded vs. seamless steel yeeb nkab
ERW thiab cov yeeb nkab hlau tsis sib haum muaj nyob ua lwm txoj hauv kev niaj hnub no feem ntau vim yog kev nkag siab keeb kwm.
Feem ntau, cov yeeb nkab txuas tau txiav txim siab tsis muaj zog vim tias nws suav nrog cov hlua txuas. Seamless yeeb nkab tsis muaj qhov cuam tshuam qhov teeb meem no thiab tau txiav txim siab nyab xeeb. Thaum nws yog qhov tseeb tias cov yeeb nkab txuas tau suav nrog kev sib khi uas ua rau nws tsis muaj zog, cov txheej txheem tsim khoom thiab cov txheej txheem kev nyab xeeb txhua tus tau txhim kho raws li qhov uas cov yeeb nkab txuas yuav ua tau raws li qhov xav tau thaum nws qhov zam tsis dhau. Thaum pom qhov txiaj ntsig tau meej, qhov kev thuam ntawm cov kav dej tsis sib haum yog qhov txheej txheem dov thiab ncab ua rau cov phab ntsa tuab tsis sib xws piv rau qhov tseeb dua tuab ntawm cov ntawv hlau uas xav tau rau vuam.
Cov txheej txheem kev lag luam uas tswj hwm kev tsim khoom thiab cov lus qhia tshwj xeeb ntawm ERW thiab cov yeeb nkab tsis muaj hlau txuas tseem muaj kev cuam tshuam cov kev xav no. Piv txwv li, kev xa cov kav dej tsis sib haum yog xav tau rau ntau qhov kev kub siab, kev ntsuas kub hauv cov roj& roj, kev tsim hluav taws xob thiab kev lag luam tshuaj. Welded piping (uas feem ntau pheej yig dua los tsim thiab muaj ntau qhov dav) tau teev tseg thoob plaws txhua qhov kev lag luam tsuav yog qhov ntsuas kub, siab thiab lwm yam kev pabcuam sib txawv tsis tshaj qhov ntsuas tau teev tseg hauv tus qauv siv tau.
Hauv cov txheej txheem siv, tsis muaj qhov sib txawv hauv kev ua tau zoo ntawm ERW thiab cov yeeb nkab tsis sib haum. Thaum ob qho tuaj yeem hais qhia sib pauv tau, nws yuav tsis nkag siab los qhia meej rau qhov tsis sib thooj thaum pheej yig welded yeeb nkab ua haujlwm zoo ib yam.
