Qhov ncaj seam steel yeeb nkab yog hais txog cov kav hlau uas lawv cov welds yog sib npaug rau qhov ntev ntawm cov yeeb nkab steel. Nws cov txheej txheem ntau lawm yog qhov yooj yim. Lub zog ntawm cov kauv steel yeeb nkab feem ntau yog siab dua lub zog ntawm cov yeeb nkab ncaj seam steel. Nws tuaj yeem tsim cov kab loj dua welded kav nrog qhov nqaim ntxhib, lossis siv tib lub dav siv los tsim cov kab sib txawv welded kav, tab sis piv nrog cov kav hlau ncaj ncaj ntawm tib qhov ntev, qhov ntev ntawm cov vuam yog nce li 30% {{1} } %. Kev ceev ntau lawm tau qeeb. Raws li nws cov txheej txheem ntau lawm, nws tuaj yeem muab faib ua high-frequency ncaj seam steel kav thiab faus arc vuam ncaj seam steel kav. Cov faus arc vuam ncaj seam steel kav tau muab faib ua UOE, RBE thiab JCOE steel kav raws li lawv txoj kev molding.
Cov txheej txheem molding ntawm ncaj seam steel kav
Qhov ncaj seam steel yeeb nkab yuav tsum tau ua cov kev ntsuam xyuas kev ua tau zoo, kev ntsuam xyuas flattened, thiab kev ntsuam xyuas kev nthuav dav, thiab xyuas kom meej tias nws ua tau raws li tus qauv yuav tsum tau ua. Cov kav hlau steel yuav tsum muaj peev xwm tiv taus qee qhov siab sab hauv. Yog tias tsim nyog, kev ntsuas siab 2.5MPa tau ua thiab khaws cia rau 1 feeb yam tsis muaj qhov xau. Txoj kev ntsuas vortex tuaj yeem hloov qhov ntsuas hydraulic. Raws li GB7735 "Steel Tube Vortex Detective Method" tus qauv, kev kuaj pom vortex tau ua. Kev soj ntsuam tag nrho ntawm cov vuam vuam tau ua tiav thiab txiav txim siab los ntawm kev tshawb nrhiav lub teeb liab los ntawm vortex sojntsuam kom ua tiav lub hom phiaj ntawm kev tshawb pom. Tom qab kev kuaj pom, cov yeeb nkab welded raug txiav rau hauv qhov ntev ntev nrog lub dav hlau pom, thiab txoj hlua tig yog offline. Ob qhov kawg ntawm cov yeeb nkab steel yuav tsum tiaj tus, thiab cov cim yuav tsum tau luam tawm. Ua ntej tawm hauv lub Hoobkas, ntim cov yeeb nkab tiav rau hauv hexagonal thiab ntim nws.
Tseem muaj cov hauv qab no los ua cov txheej txheem ua cov kav hlau ncaj nraim:
1. Forging steel, siv qhov rov ua haujlwm ntawm lub forging rauj lossis lub siab ntawm lub tshuab siab kom hloov cov duab ntxhib rau cov duab thiab qhov loj me uas peb xav tau;
2. Squeezing, qhov no yog ib hom kev muab hlau tso rau hauv ib lub extruder kaw, thiab tso siab rau ntawm ib kawg kom nyem cov hlau los ntawm cov pwm qhov tshwj xeeb, thiaj li yuav tau txais ib txoj kev ua haujlwm nrog tib cov duab thiab cov khoom tiav. Kev tsim cov khoom siv hlau;
3. Rolling, qhov no yog ib txoj kev ntawm kev kho siab, qhov twg cov billet hla qhov sib txawv ntawm ib khub rotating rollers, thiab cov khoom hla ntu yog txo thiab qhov ntev yog nce vim compression ntawm cov menyuam;
4. Pulling steel yog cov txheej txheem ntawm cov hlau tsis muaj hlau uas tau muab dov los ntawm cov khoom siv hlau dov kom txo tau qhov kev sib tsoo thiab ua kom ntev. Feem ntau ntawm cov txheej txheem no yog siv rau kev ua kom txias.
