Cov kav hlau tsis muaj qhov (seamless steel tube) yog ua los ntawm cov hlau puag ncig, thiab cov kav hlau uas tsis muaj qhov vuam ntawm qhov chaw hu ua cov kav hlau tsis muaj qhov (seamless steel tube). Raws li txoj kev tsim khoom, cov kav hlau tsis muaj qhov (seamless steel tube) muaj peev xwm muab faib ua cov kav hlau tsis muaj qhov kub dov, cov kav hlau tsis muaj qhov txias dov, cov kav hlau tsis muaj qhov txias rub, cov kav hlau tsis muaj qhov extruded, thiab cov kav saum toj. Raws li cov duab hla, cov kav hlau tsis muaj qhov (seamless steel tube) muaj ob hom: puag ncig thiab cov duab tshwj xeeb. Cov kav hlau tshwj xeeb muaj xws li cov kav plaub fab, oval, triangular, hexagonal, noob txiv lws suav, lub hnub qub, thiab cov kav finned. Qhov loj tshaj plaws yog 22000mm thiab qhov tsawg kawg nkaus yog 4mm. Raws li ntau lub hom phiaj sib txawv, muaj cov kav hlau tsis muaj qhov (thick-walled steel tube) thiab cov kav hlau tsis muaj qhov (thin-walled steel tube). Cov kav hlau tsis muaj qhov (seamless steel tube) feem ntau yog siv ua cov kav roj av geological drilling, cov kav tawg rau kev lag luam petrochemical, cov kav boiler, cov kav bearing, thiab cov kav hlau high-precision rau tsheb, tsheb laij teb, thiab aviation.
Cov kav hlau tsis muaj seamless yog siv dav.
1. Cov kav hlau tsis muaj qhov txuas dav dav yog dov los ntawm cov hlau carbon zoo tib yam, cov hlau tsis muaj hlau lossis cov hlau sib xyaw, nrog rau cov zis loj tshaj plaws, thiab feem ntau yog siv ua cov kav dej lossis cov khoom siv rau kev xa cov kua dej.
2. Raws li ntau lub hom phiaj sib txawv, nws tuaj yeem muab tau rau hauv peb pawg:
a. Kev muab khoom raws li cov tshuaj lom neeg sib xyaw thiab cov khoom siv kho tshuab;
b. Raws li kev ua tau zoo ntawm cov khoom siv kho tshuab;
c. Raws li qhov kev sim siab ntawm dej. Cov kav dej hlau uas muab los ntawm pawg a thiab b. yog tias siv los tiv taus qhov siab ntawm kua, yuav tsum raug kuaj hydraulic.
3. Cov kav dej tsis muaj qhov txuas tshwj xeeb suav nrog cov kav dej tsis muaj qhov txuas rau cov boilers, tshuaj lom neeg thiab hluav taws xob, cov kav dej hlau tsis muaj qhov txuas rau geology, thiab cov kav dej tsis muaj qhov txuas rau roj av.
Cov kav hlau tsis muaj qhov sib txuas muaj ib ntu hollow thiab siv ntau heev ua cov kav dej rau kev thauj cov kua, xws li cov kav dej rau kev thauj roj, roj av, roj, dej thiab qee yam khoom khov. Piv nrog cov hlau khov xws li cov hlau puag ncig, cov kav hlau sib dua hauv lub zog flexural thiab torsional thiab yog cov hlau seem pheej yig. Siv dav hauv kev tsim cov khoom siv thiab cov khoom siv kho tshuab, xws li cov kav dej tho roj, cov ncej kis tsheb, cov thav duab tsheb kauj vab, thiab cov hlau scaffolding siv hauv kev tsim kho. Cov kav hlau siv los ua cov khoom nplhaib, uas tuaj yeem txhim kho kev siv cov khoom siv, ua kom yooj yim rau cov txheej txheem tsim khoom, thiab txuag cov ntaub ntawv thiab kev ua tiav. Lub sijhawm ua haujlwm.
Muaj ob txoj kev tsim khoom tseem ceeb rau cov kav hlau tsis muaj seamless (dov txias thiab dov kub):
①Txheej txheem tseem ceeb ntawm ccccccc (△txheej txheem tshuaj xyuas tseem ceeb):
Kev npaj thiab tshuaj xyuas cov yeeb nkab billet △ → cua sov cov yeeb nkab billet → perforation → dov cov yeeb nkab → rov ua kom cov yeeb nkab sov → kho (txo) txoj kab uas hla → kho cua sov △ → ua kom cov yeeb nkab ncaj → ua tiav → tshuaj xyuas △ (tsis puas tsuaj, lub cev thiab tshuaj lom neeg, kev tshuaj xyuas lub rooj ntev zaum) → khaws cia
② Cov txheej txheem tseem ceeb ntawm cov yeeb nkab hlau txias-kuav los ntawm seamless:
Kev npaj ua ntej → pickling thiab lubrication → txias dov (kos duab) → kev kho cua sov → ncaj → tiav → tshuaj xyuas → cia khoom
Lub sijhawm tshaj tawm: Lub Peb Hlis-22-2022