Hauv txoj kev thiab txoj kev hauv nroog, peb tuaj yeem pom daim duab ntawm cov hlau nplaummanhole npognyob txhua qhov chaw. Txawm hais tias tsis pom qhov muag, lawv ua lub luag haujlwm tseem ceeb hauv nroog infrastructure.
Cov yam ntxwv ntawm cov khoom
Ductile hlau manhole npog muaj cov khoom zoo heev. Nws lub zog thiab toughness yog qhov zoo tshaj plaws, thiab nws muaj lub zog siab thiab tuaj yeem tiv taus lub siab tseem ceeb. Feem ntau hais lus, raws li cov qauv sib txawv thiab cov qib, cov ntaub qhwv hlau npog tuaj yeem tiv taus lub tsheb thauj khoom ntawm 10-90 tons lossis siab dua.
Los ntawm kev kho tshwj xeeb spheronization, graphite yog faib rau hauv cov duab kheej kheej hauv cov hlau matrix, uas tso cai rau lub manhole npog nrog lub peev xwm los tiv thaiv kev kub ntxhov thiab cuam tshuam cov rog. Txawm hais tias cov tsheb thauj khoom hnyav feem ntau cuam tshuam rau hauv nroog txoj kev loj lossis tsheb ua rau muaj kev cuam tshuam txawv txav thaum lub caij ntuj no txoj kev icing, ductile hlau manhole npog tuaj yeem tswj tau lawv txoj kev ncaj ncees thiab txo qhov kev puas tsuaj.
Ntxiv mus, nyob rau hauv cov nqe lus ntawm corrosion kuj, ductile hlau manhole npog kuj ua tau zoo. Nws nto tuaj yeem coated nrog kev tiv thaiv corrosion xws li zinc txheej lossis epoxy txheej. Cov txheej zinc tuaj yeem nyiam corrode los ntawm electrochemical kev ua, tiv thaiv cov hlau hauv matrix. Epoxy txheej tuaj yeem tiv taus cov tshuaj yaig xws li cov kua qaub los nag thiab dej phwj tuaj, uas ua rau cov ntaub npog manhole siv tau ntev hauv cov dej hauv cov chaw hnyav xws li cov chaw ua si tshuaj lom neeg thiab cov ntug hiav txwv dej.
Cov txheej txheem tsim khoom thiab kev tswj xyuas zoo
Kev tsim cov txheej txheem ntawm ductile hlaumanhole npogyog cov txheej txheem ilv uas suav nrog ntau cov kauj ruam xws li melting, spheroidizing, casting, forming, thiab processing. nruj me ntsis tswj lub melting kub thiab tshuaj pleev ib ce ntawm raw cov ntaub ntawv, xws li seem hlau thiab npua hlau, thoob plaws hauv lub smelting txheej txheem. Tom qab ntawd, siv tus nqi tsim nyog ntawm spheroidizing tus neeg sawv cev los pib txheej txheem spheroidization. Txhawm rau ua kom cov pwm zoo sib xws thiab tiv thaiv qhov tsis xws luag xws li qhov pores thiab xuab zeb qhov, nws yog ib qho tseem ceeb uas yuav tsum tau ua tib zoo saib xyuas qhov kub thiab txias ntawm cov hlau molten thiab casting ceev thaum lub sij hawm casting txheej txheem. Txiav, trimming, mechanical processing los lav qhov tseeb qhov tseeb, thiab kev kho saum npoo, nrog rau polishing thiab xeb tshem tawm, tseem tsim nyog rau lub hau npog manhole. Txhawm rau tiv thaiv corrosion, siv cov txheej txheem sib xws.
Nyob rau hauv cov nqe lus ntawm kev tswj kom zoo, kev ntsuam xyuas qhov tseeb qhov tseeb, nto zoo, thiab load-bearing muaj peev xwm ntawm manhole npog yog ib qho tseem ceeb kauj ruam. Kev lag luam ntsig txog lossis cov qauv hauv lub tebchaws, xws li cov lus qhia nruj ntawm cov yam ntxwv zoo li manhole npog thickness thiab txoj kab uas hla, yuav tsum tau ua kom tau raws li qhov tseeb ntawm qhov ntev. Lub manhole npog saum npoo yuav tsum yog theem thiab tsis muaj qhov pom kev tsis zoo xws li qhov pores thiab xuab zeb qhov kom tau raws li tus qauv zoo. Cov kabmob muaj peev xwm kuaj xyuas lub manhole npog lub peev xwm kom ncav cuag cov kabmob uas tau xaiv los ntawm kev simulating lub tsheb tiag tiag load scenario thiab siv lub siab.
Daim ntawv thov scenarios
Ductile hlau manhole npog yog qhov kev xaiv pom zoo rau cov chaw tsheb loj, xws li txoj kev loj hauv nroog, hauv qab hla, thiab ntawm txoj kev ntawm cov chaw nres nkoj thiab cov chaw nres nkoj. Ductile hlau manhole npog yog qhov tseem ceeb nyob rau hauv cov chaw uas muaj tsheb thauj mus los hnyav thiab cov tsheb loj loj, vim lawv pab tswj kev nyab xeeb thiab kev ua haujlwm. Hauv cov chaw tsim khoom, xws li steel thiab tshuaj nroj tsuag, cov manhole npog tuaj yeem tiv taus qhov hnyav ntawm cov tsheb hnyav thiab cov kev xav tau ntawm kev lag luam kev lag luam, tiv thaiv cov ntsiab lus nkag mus rau cov kav dej. Rau cov infrastructure uas yuav tsum tau kev cia siab rau lub sij hawm ntev, xws limanhole npognyob rau hauv cov dej phwj kho cov nroj tsuag thiab cov chaw dej, qhov corrosion kuj thiab siab zog ntawm cov hlau ductile manhole npog lav lawv cov hauj lwm zoo nyob rau hauv hnyav tej yam kev mob, nrog rau high humidity thiab raug rau cov tshuaj.
Nyob rau hauv luv luv, ductile hlau manhole npog ua kom lub cev ua haujlwm ntawm lub nroog, muab kev nyab xeeb thiab kev ua haujlwm tsis zoo rau peb lub neej thiab kev tsim khoom, txawm tias nyob hauv nroog bustling txoj kev lossis cov chaw lag luam tsis khoom.
