seamless hlau raj

Cov yeeb nkab hlau tsis muaj qhov (seamless steel yeeb nkab) yog ib hom yeeb nkab ntev uas muaj qhov khoob thiab tsis muaj qhov sib txuas ib puag ncig. Cov yeeb nkab hlau tsis muaj qhov khoob thiab siv tau ua cov kav dej rau kev xa cov kua dej, xws li roj, roj av, roj av, dej thiab qee yam khoom khov. Piv nrog cov hlau khov xws li cov hlau puag ncig, cov yeeb nkab hlau tsis muaj qhov hnyav dua thaum nws lub zog khoov thiab torsional zoo ib yam. Nws yog ib hom yeeb nkab seem kev lag luam, uas siv dav los tsim cov khoom siv thiab cov khoom siv kho tshuab, xws li cov yeeb nkab roj tho, lub cev kis tsheb, lub tsheb kauj vab thiab cov hlau scaffold siv hauv kev tsim kho. Kev tsim cov khoom zoo li lub nplhaib nrog cov yeeb nkab hlau tsis muaj qhov (seamless steel yeeb nkab) tuaj yeem txhim kho tus nqi siv cov khoom siv, ua kom yooj yim rau cov txheej txheem tsim khoom, thiab txuag cov khoom siv thiab cov sijhawm ua haujlwm, xws li cov nplhaib dov, Jack tes tsho, thiab lwm yam, uas tau tsim dav nrog cov yeeb nkab hlau. Cov yeeb nkab hlau kuj yog ib yam khoom tseem ceeb rau ntau yam riam phom ib txwm muaj. Lub qhov thiab lub qhov ntawm rab phom yuav tsum ua los ntawm cov yeeb nkab hlau. Cov yeeb nkab hlau tuaj yeem muab faib ua cov yeeb nkab puag ncig thiab cov yeeb nkab zoo li tshwj xeeb raws li cov duab ntawm thaj chaw hla. Vim tias thaj chaw puag ncig yog qhov loj tshaj plaws hauv qhov xwm txheej ntawm qhov sib npaug ntawm qhov ncig, ntau cov kua dej tuaj yeem thauj nrog lub raj puag ncig. Tsis tas li ntawd xwb, thaum lub nplhaib seem raug rau sab hauv lossis sab nraud radial siab, lub zog yuav sib npaug ntau dua. Yog li ntawd, feem ntau ntawm cov kav hlau yog cov kav hlau puag ncig. Txawm li cas los xij, cov kav hlau puag ncig kuj muaj qee qhov kev txwv. Piv txwv li, nyob rau hauv qhov xwm txheej ntawm lub dav hlau khoov, lub zog khoov ntawm cov kav hlau puag ncig tsis muaj zog npaum li cov kav hlau plaub fab thiab plaub fab. Cov kav hlau plaub fab thiab plaub fab feem ntau siv rau hauv lub moj khaum ntawm qee lub tshuab ua liaj ua teb thiab cov cuab yeej, cov rooj tog hlau thiab ntoo, thiab lwm yam. Cov kav hlau zoo li tshwj xeeb nrog lwm cov duab hla ntu kuj xav tau rau ntau lub hom phiaj.

Cov yeeb nkab hlau vuam

Cov yeeb nkab hlau welded, tseem hu ua cov yeeb nkab welded, yog cov yeeb nkab hlau ua los ntawm cov hlau phaj lossis cov hlau strip tom qab crimping thiab tsim. Cov yeeb nkab hlau welded muaj qhov zoo ntawm cov txheej txheem yooj yim tsim khoom, kev ua haujlwm siab, ntau hom thiab cov lus qhia thiab kev nqis peev tsawg dua, tab sis nws lub zog dav dav qis dua li cov yeeb nkab hlau seamless. Txij li xyoo 1930, nrog rau kev txhim kho sai ntawm cov khoom siv zoo strip tas mus li thiab kev nce qib ntawm kev vuam thiab kev tshuaj xyuas thev naus laus zis, qhov zoo ntawm kev vuam tau txhim kho tas mus li, ntau yam thiab cov lus qhia ntawm cov yeeb nkab hlau welded tau nce ntxiv, thiab cov yeeb nkab hlau seamless tau hloov pauv hauv ntau thiab ntau qhov chaw. Cov yeeb nkab hlau welded tau muab faib ua cov yeeb nkab ncaj seam welded thiab cov yeeb nkab welded kauv raws li daim ntawv ntawm kev vuam.