Kev txhim kho kev ua haujlwm zoo thiab zoo yog qhov tseem ceeb hauv kev lag luam tsim khoom hnyav uas niaj hnub hloov zuj zus. Ib qho ntawm kev nce qib tseem ceeb tshaj plaws hauv kev siv tshuab vuam uas tau tshwm sim hauv xyoo tas los no yog kev vuam ob chav submerged arc (DSAW). Cov thev naus laus zis tshiab no tsis yog tsuas yog txhim kho kev ruaj khov ntawm cov khoom vuam xwb, tab sis kuj ua rau cov txheej txheem tsim khoom yooj yim dua, ua rau nws hloov pauv kev ua si rau cov lag luam uas vam khom cov khoom hnyav.
Lub plawv ntawm DSAW yog nws lub peev xwm los tsim cov welds zoo nrog qhov tsis zoo tsawg kawg nkaus. Txoj kev no suav nrog ob lub arcs uas raug faus rau hauv qab ib txheej ntawm cov kua dej granular, uas tiv thaiv lub pas dej weld los ntawm kev ua qias tuaj thiab oxidation. Qhov tshwm sim yog qhov huv dua, muaj zog dua uas tuaj yeem tiv taus qhov nyuaj ntawm cov ntawv thov kev tsim khoom hnyav. Qhov no tseem ceeb heev rau cov tuam txhab uas tsimtxias tsim welded qauvcov seem khoob, xws li cov uas tau teev tseg hauv cov qauv European hauv cov duab puag ncig, plaub fab lossis duab plaub fab. Cov seem no tseem ceeb heev rau ntau yam kev siv, suav nrog kev tsim kho, kev tsim kho vaj tse thiab cov tshuab hnyav.
Nyob rau hauv Cangzhou, Hebei Xeev, lub Hoobkas qhia tag nrho cov txiaj ntsig ntawm DSAW hauv kev tsim khoom hnyav. Tsim muaj xyoo 1993, lub Hoobkas npog thaj tsam ntawm 350,000 square meters thiab muaj tag nrho cov cuab tam ntawm 680 lab yuan. Nrog 680 tus neeg ua haujlwm mob siab rau, lub Hoobkas yog tus thawj coj hauv kev tsim cov khoom zoo hollow seem. Los ntawm kev koom ua ke DSAW rau hauv cov txheej txheem tsim khoom, lub Hoobkas tau txhim kho kev ua haujlwm zoo thiab cov khoom zoo.
Ib qho ntawm cov txiaj ntsig tseem ceeb ntawm DSAW yog qhov ceev. Cov txheej txheem tso cai rau kev vuam ceev dua li cov txheej txheem ib txwm muaj, uas txo lub sijhawm tsim khoom. Qhov kev ua tau zoo no yog qhov tseem ceeb rau kev tsim khoom hnyav uas lub sijhawm feem ntau yog qhov tseem ceeb. Los ntawm kev txo lub sijhawm vuam, cov chaw tsim khoom tuaj yeem nce kev tsim khoom thiab ua tau raws li qhov xav tau ntawm kev ua lag luam sib tw.
Tsis tas li ntawd xwb, qhov zoo ntawm DSAW weld tseem zoo tas li. Cov txheej txheem submerged arc txo qhov kev pheej hmoo ntawm cov qhov tsis zoo xws li porosity thiab inclusions uas yuav ua rau muaj kev puas tsuaj rau cov khoom kawg. Qhov no yog qhov tseem ceeb rau cov khoom siv welded txias, uas yuav tsum ua tau raws li cov qauv zoo kom ntseeg tau tias muaj kev nyab xeeb thiab kev ntseeg siab ntawm lawv daim ntawv thov. Lub Hoobkas Cangzhou siv cov thev naus laus zis no los xyuas kom meej tias nws cov khoom tsis yog tsuas yog ua tau raws li cov qauv kev lag luam, tab sis dhau lawv.
Ntxiv rau kev txhim kho kev ua haujlwm zoo thiab zoo, DSAW kuj pab txuag cov nqi. Nrog tsawg qhov tsis zoo, muaj tsawg dua qhov xav tau rov ua haujlwm, uas txhais tau tias cov chaw tsim khoom tuaj yeem faib cov peev txheej kom zoo dua. Qhov no yog qhov tshwj xeeb tshaj yog rau kev tsim khoom loj, qhov twg cov nqi khoom siv thiab cov neeg ua haujlwm yog cov yam tseem ceeb hauv kev siv nyiaj ntau lawm.
Raws li kev lag luam tsim khoom hnyav txuas ntxiv mus, kev siv cov thev naus laus zis vuam siab heev xws liob chav submerged arc weldedyuav ua lub luag haujlwm tseem ceeb hauv kev tsim lub neej yav tom ntej. Cov tuam txhab uas nqis peev rau hauv cov thev naus laus zis no yuav tsis tsuas yog txhim kho kev ua haujlwm zoo xwb tab sis kuj txhim kho cov khoom zoo, yog li ntawd tau txais txoj haujlwm ua tus thawj coj hauv kev ua lag luam sib tw heev.
Hauv ntej, ob chav submerged arc welding yog revolutionary heavy manufacturing los ntawm kev txhim kho kev ua haujlwm zoo thiab zoo. Lub Hoobkas no hauv Cangzhou City yog ib qho piv txwv zoo ntawm yuav ua li cas cov thev naus laus zis tuaj yeem koom ua ke rau hauv cov txheej txheem ntau lawm, tsim cov khoom zoo hollow uas ua tau raws li qhov xav tau ntawm kev lag luam niaj hnub. Thaum cov chaw tsim khoom siv zog rau kev ua tau zoo, kev siv cov thev naus laus zis tshiab xws li DSAW yuav tseem ceeb rau kev vam meej hauv xyoo tom ntej.
Lub sijhawm tshaj tawm: Plaub Hlis-08-2025