NM400 daim hlau hnav-tiv taus yuav tsum tau coated ua ntej siv, feem ntau yog los tiv thaiv lawv los ntawm cua thiab los nag thaum siv thiab txuas lawv lub neej kev pab cuam. Thaum txheej txheej, nws yog ib qho tsim nyog yuav tsum tau ntxuav qhov saum npoo ntawm lub phaj hnav, kom cov txheej txheem txheej tau yooj yim dua. Yog li peb yuav tsum tau ua raws li qhov xwm txheej tshwj xeeb. Cov txheej txheem txheej txheej tshwj xeeb zoo li cas?
Cov txheej zoo ntawm NM400 hnav-tiv taus phaj yog siab dua li ntawm kauv submerged arc welded yeeb nkab. Kev nqis peev hauv kev tsim khoom, kev ua haujlwm, thiab cov yeeb nkab steel ua cov nqi yog qhov siab. Vim yog vuam yam tsis tau kho, lub taub hau cov kav dej tsis raug tso cai, ua rau muaj kev tawm los tsawg. Resistance welded steel kav yog ncaj qha, yog li ntawd, tus nqi yog siab dua li ntawm kauv submerged arc welded steel kav, uas yog hais txog tag nrho cov nqi ntawm cov kav dej siv thiab tsis nce. Lub seamless vuam ntawm welded kav feem ntau muaj xws li ob yam: seamless geometry, mechanical txoj kev, ntau siv tshuab cua sov, tshem tawm ntawm sab hauv thiab sab nraud weld seam burrs, ua raws li lub cev seamless daim ntawv thov.
Lub hauv paus thiab sib xws ntawm cov txheej txheem kev kho cua sov, vuam, microstructure ntawm tshav kub cuam tshuam cheeb tsam, thiab txhua yam khoom ntawm NM400 hnav-resistant phaj. Spillover tsis yog ib qho tseem ceeb welding qhov tsis xws luag, tab sis muaj qhov tsis sib xws ntawm qhov ntau tshaj 3 hli ntawm cov khoom siv super, uas tuaj yeem ua hauv av nrog lub log sib tsoo. Tshaj dhau, vim tias thaum vuam electrode sai yaj, cov kua hlau molten solidifies raws li niam txiv hlau pas dej ua ke. Kev tsim cov dej ntws feem ntau yog vim qhov kev xaiv tam sim no ntawm arc vuam kev ua haujlwm loj dhau, lossis thaum rub tawm ntev dhau. Nws yog ib qho yooj yim uas tshwm sim nyob rau hauv ntsug los yog rov qab vuam. Tej zaum yuav muaj qhov tshwm sim ntawm qhov tsis txaus thiab qhov nkag ntawm cov khoom siv niam txiv. Kev saib xyuas pom tau hais tias thaum lub sijhawm dhau mus, yuav tsum tau them nyiaj rau kev kuaj xyuas tias tsis muaj qhov cuam tshuam hauv qab ntawm qhov hla dhau.
