Cov yeeb nkab hlau tsis muaj qhov (seamless steel tube) yog cov yeeb nkab uas muaj cov hlau puag ncig uas muaj qhov (perforated) thiab cov yeeb nkab uas tsis muaj qhov vuam (weld) rau saum npoo hu ua cov yeeb nkab hlau tsis muaj qhov (seamless steel tube). Raws li txoj kev tsim khoom, cov yeeb nkab hlau tsis muaj qhov (seamless steel tube) muaj peev xwm muab faib ua cov yeeb nkab hlau kub dov (hot-dov seamless steel tube), cov yeeb nkab hlau tsis muaj qhov (cool-dov seamless steel tube), cov yeeb nkab hlau tsis muaj qhov (cool-drawn seamless steel tube), cov yeeb nkab hlau tsis muaj qhov (extruded seamless steel tube), cov yeeb nkab hlau uas raug rub tawm (pipe jacking) thiab lwm yam. Raws li cov duab ntawm cov yeeb nkab hlau, cov yeeb nkab hlau tsis muaj qhov (seamless steel tube) muaj ob hom: puag ncig thiab zoo li tus. Qhov loj tshaj plaws yog 900 hli thiab qhov tsawg kawg nkaus yog 4 hli. Raws li kev siv sib txawv, muaj cov yeeb nkab hlau tsis muaj qhov (thick-walled seamless steel tube) thiab cov yeeb nkab hlau tsis muaj qhov (thin-walled seamless steel tube). Cov yeeb nkab hlau tsis muaj qhov (seamless steel tube) feem ntau yog siv rau cov yeeb nkab roj av, cov yeeb nkab roj av.tawg yeeb nkab, cov yeeb nkab boiler, cov yeeb nkab thiabcov yeeb nkab hlau uas muaj qhov tseeb siabrau cov tsheb, tsheb laij teb thiab kev tsav dav hlau. 

Raws li kev siv, nws muab faib ua ob pawg: lub hom phiaj dav dav (rau cov kav dej, cov kav roj thiab cov khoom siv, cov khoom siv kho tshuab) thiab tshwj xeeb (rau cov boilers, kev tshawb nrhiav geological, cov kabmob, kev tiv thaiv kua qaub, thiab lwm yam).

Cov yeeb nkab hlau tsis muaj qhov txuas yog dov los ntawm cov hlau carbon zoo tib yam, cov hlau tsis muaj hlau sib xyaw lossis cov hlau sib xyaw, thiab muaj cov zis loj tshaj plaws, feem ntau yog siv ua cov kav dej lossis cov khoom siv rau kev xa cov kua. Muaj ntau hom yeeb nkab tsis muaj qhov txuas rau cov hom phiaj tshwj xeeb, xws li cov yeeb nkab tsis muaj qhov txuas boiler, cov yeeb nkab fais fab tshuaj, cov yeeb nkab tsis muaj qhov txuas geological thiab cov yeeb nkab tsis muaj qhov txuas roj av. Cov yeeb nkab tsis muaj qhov txuas hollow thiab siv dav ua cov kav dej rau kev xa cov kua, xws li cov kav dej rau kev xa roj, roj av, roj av, dej thiab qee cov khoom khov.

Cov txheej txheem tsim cov yeeb nkab hlau tsis muaj seamless:

① Cov txheej txheem tseem ceeb ntawm cov yeeb nkab hlau kub dov seamless (△ Cov txheej txheem tshuaj xyuas tseem ceeb): 

Kev npaj thiab kev tshuaj xyuas △ → Kev cua sov → kev tho qhov → Kev dov → kev rov ua kom sov → Kev ntsuas qhov loj → Kev kho cua sov △ → Kev ncaj → Kev ua tiav → Kev tshuaj xyuas △ (tsis ua puas tsuaj, lub cev thiab tshuaj lom neeg, kev tshuaj xyuas rooj) → kev khaws cia

② Cov txheej txheem tseem ceeb ntawm cov yeeb nkab hlau tsis sib xyaw (kos) txias dov:

Kev npaj ua ntej → pickling lubrication → Txias dov (kos duab) → Kev kho cua sov → ncaj → tiav → tshuaj xyuas

Cov txheej txheem tsim cov yeeb nkab hlau seamless feem ntau muaj ob hom: txias kos thiab kub dov, txias dov seamless yeeb nkab hlau txheej txheem tsim cov txheej txheem feem ntau nyuaj dua li kub dov, lub raj billet ua ntej ua peb lub menyuam dov tas mus li, extrusion tom qab ntsuas qhov loj, yog tias qhov chaw tsis teb rau qhov tawg tom qab lub raj puag ncig yuav tsum tau txiav los ntawm lub tshuab txiav, txiav qhov loj ntawm kwv yees li ib 'meter' dawb paug. Tom qab ntawd nkag mus rau hauv cov txheej txheem annealing, annealing nrog kua qaub pickling, pickling yuav tsum tau them sai sai rau seb puas muaj ntau lub npuas ntawm qhov chaw, yog tias muaj ntau lub npuas, qhia tias qhov zoo ntawm cov yeeb nkab hlau tsis tuaj yeem ua tau raws li cov qauv sib xws. Cov tsos ntawm cov yeeb nkab hlau seamless txias-kuav los ntawm txias-kuav los ntawm kub dov yog luv dua li cov yeeb nkab hlau seamless kub dov, phab ntsa tuab ntawm cov yeeb nkab hlau seamless txias-kuav los ntawm ...

Feem ntau, cov yeeb nkab hlau kub dov seamless xa khoom tuaj tom qab kev kho cua sov kub dov. Cov yeeb nkab hlau kub dov seamless tom qab kev tshuaj xyuas zoo los ntawm cov neeg ua haujlwm xaiv cov ntawv qhia nruj, tom qab kev tshuaj xyuas zoo los ua cov roj saum npoo, thiab tom qab ntawd ua raws li ntau qhov kev sim kos duab txias, kev kho cua sov dov los ua qhov kev sim ntawm qhov perforation, yog tias qhov perforation loj dhau los ua straightener. Tom qab ncaj, nws raug xa mus rau lub tshuab nrhiav qhov tsis zoo los ntawm lub cuab yeej kis mus rau qhov kev sim nrhiav qhov tsis zoo, thiab thaum kawg sau npe, teeb tsa thiab muab tso rau hauv lub tsev rau khoom.

Lub raj kheej kheej → cua sov → perforation → peb-yob skew dov, txuas ntxiv dov lossis extrusion → Stripping → sizing (lossis txo) → txias → ncaj → kuaj siab dej (lossis tshuaj xyuas) → Cim → Cov yeeb nkab hlau tsis muaj qhov hauv qhov cia khoom yog ua los ntawm cov hlau ingot lossis cov yeeb nkab khoom khov kho los ntawm perforation los ua lub raj capillary, thiab tom qab ntawd kub dov, txias dov lossis kos txias. Cov lus qhia ntawm cov yeeb nkab hlau tsis muaj qhov yog qhia los ntawm sab nraud txoj kab uas hla * phab ntsa tuab ntawm millimeters.

Lub cheeb tsam sab nraud ntawm cov yeeb nkab kub-dov seamless feem ntau loj dua 32 hli, phab ntsa tuab yog 2.5-200 hli, lub cheeb tsam sab nraud ntawm cov yeeb nkab txias-dov seamless tuaj yeem yog 6 hli, phab ntsa tuab tuaj yeem yog 0.25 hli, lub cheeb tsam sab nraud ntawm cov yeeb nkab nyias-phab ntsa tuaj yeem yog 5 hli, phab ntsa tuab tsawg dua 0.25 hli, thiab qhov tseeb ntawm qhov loj me yog siab dua li ntawm cov yeeb nkab kub-dov seamless.