Loj-inch tuab-walled seamless steel kav yog tsim los ntawm steel ingots los yog khoom round steel uas yog perforated rau hauv capillary hlab thiab ces kub dov. Loj-inch tuab-walled seamless steel kav ua lub luag haujlwm tseem ceeb hauv kuv lub teb chaws txoj kev lag luam steel yeeb nkab. Raws li kev txheeb cais tsis tiav, muaj ntau tshaj 240 seamless yeeb nkab manufacturers hauv kuv lub teb chaws thiab ntau tshaj 250 loj-inch tuab-walled seamless steel yeeb nkab units. Loj-inch tuab-walled seamless steel kav yog tsuas yog nyob rau sab nraud txoj kab uas hla ntawm cov yeeb nkab steel. Feem ntau, cov uas muaj ib txoj kab uas hla ntawm ntau tshaj 325 mm yog hu ua loj-inch steel kav. Raws li cov phab ntsa tuab, feem ntau, cov phab ntsa tuab ntawm ntau tshaj 20 mm yog txaus. Cov hauv qab no yog cov txheej txheem tsim cov kav hlau: Cov khoom siv raw ntawm cov kav hlau yog steel yeeb nkab blanks. Cov yeeb nkab blanks yuav tsum tau txiav los ntawm lub tshuab txiav rau hauv qhov khoob nrog qhov ntev li ntawm 1 meter.

Thiab xa mus rau lub qhov cub kom cua sov los ntawm txoj siv conveyor. Lub billet yog pub rau hauv qhov cub thiab rhuab mus rau qhov kub ntawm kwv yees li 1200 ° C. Cov roj yog hydrogen lossis acetylene. Kev tswj kub hauv qhov cub yog qhov teeb meem tseem ceeb. Tom qab lub raj puag ncig tawm ntawm lub qhov cub, nws yuav tsum tau tho los ntawm lub tshuab xuas nrig ntaus. Feem ntau, lub tshuab tho ntau dua yog lub tshuab tapered roller tho. Hom tho tshuab no muaj kev ua haujlwm siab, cov khoom lag luam zoo, loj perforation txoj kab uas hla nthuav dav, thiab tuaj yeem nkag mus rau ntau hom hlau. Tom qab perforation, lub puag ncig lub raj tsis muaj qhov txuas txuas txuas ntxiv, txuas ntxiv dov, lossis extruded los ntawm peb lub rollers. Tom qab extrusion, cov yeeb nkab yuav tsum tau muab tshem tawm thiab calibrated. Lub tshuab sizing rotates ib tug tapered laum me ntsis ntawm kev kub ceev mus rau hauv lub steel dawb paug rau laum qhov los tsim ib tug steel yeeb nkab. Sab hauv txoj kab uas hla ntawm cov yeeb nkab steel yog txiav txim siab los ntawm qhov ntev ntawm lub laum me ntsis ntawm lub tshuab sizing. Tom qab cov yeeb nkab steel yog qhov loj, nws nkag mus rau hauv cov cua txias ntauwd thiab txias los ntawm txau dej. Tom qab cov yeeb nkab steel txias lawm, nws yuav tsum ncaj (qhov tseeb, ntau lub tuam txhab tsis siv cov tshuab ncaj qha, tab sis ncaj qha ncaj qha rau cov yeeb nkab steel tom qab nws dhau los ntawm lub tshuab dov. Nws tau mus txog qhov ncaj ntawm nws cov yeeb nkab steel nws tus kheej). Tom qab straightening, cov yeeb nkab steel raug xa mus rau cov hlau tsis haum (lossis kuaj hydraulic) los ntawm txoj siv conveyor rau kev kuaj pom qhov tsis zoo. Yog tias muaj cov kab nrib pleb, npuas, thiab lwm yam teeb meem hauv cov yeeb nkab steel, lawv yuav raug kuaj pom. Tom qab kev soj ntsuam zoo, cov kav hlau steel yuav tsum tau txais kev xaiv nruj heev (tam sim no txhua tus muaj laser kuaj xyuas).