Cov kav dej hlau - siab - cov kav dej zoo thiab cov kav dej

Cov kav dej hlau yog tsim los ntawm centrifugally casting molten hlau nrog qhov sib ntxiv ntawm tus neeg sawv cev spheroidizing siv lub tshuab centrifugal casting ntawm kev kub ceev. Lawvmuaj cov khoom siv kho tshuab zoo ib yam li cov pa roj carbon steel thiab cov corrosion kuj tshwj xeeb rau cam khwb cia hlau.Hauv kev lag luam yeeb nkab, cov kav dej yeeb nkab tau dav siv los ua cov khoom siv zoo - cov yeeb nkab zoo vimlawv qhov zoo xws li corrosion kuj, hnav tsis kam, kub tsis kam, siab toughness, thiab yooj yim ntawm installation, maj mam dhau los ua qhov kev nyab xeeb tshaj plaws thiab txhim khu kev qha cov khoom siv hauv cov kav dej thiab cov kav dej niaj hnub no.

• Cov kav dej hlau tau txais lawv lub npe los ntawm tus neeg sawv cev spheroidizing (magnesium hmoov) ntxiv thaum lub sij hawm casting txheej txheem, uas ua rau cov graphite nyob rau hauv ib tug kheej kheej daim ntawv, es tsis yog lub flake los yog mesh qauv pom nyob rau hauv cov tsoos cam khwb cia hlau kav. Qhov no spheroidal graphite muab cov kav hlau kav hlau ua haujlwm zoo heev,tso cai rau lawv kom muaj cov ntsiab lus ntawm cov hlau thiab kev ua haujlwm ntawm cov hlau .

• Kev kho mob annealing tuaj yeem tshem tawm cov cementite dawb hauv li - cov qauv nrum, ua rau cov cementite eutectic hauv pearlite decompose thiab tsim cov ferrite matrix. Nws kuj tseem tuaj yeem hloov pauv qhov loj ntawm cov pa roj carbon hauv austenite thiab nws cov khoom hloov pauv, yog li txhim kho cov khoom siv ntawm cov khoom siv hlau.Qhov no ua kom ntseeg tau tias nws cov qauv metallographic thiab cov khoom ua tau raws li qhov yuav tsum tau teev tseg hauv cov qauv hauv tebchaws.

• Cov kav dej ductile muaj cov ductility thiab toughness zoo, ua rau lawv hloov tau sai heev thiab tsis tshua muaj kev khoov thiab deformation thaum lub sij hawm tsim kho thiab kav dej. Nyob rau hauv huab cua hnyav thiab corrosive media ib puag ncig, ductile hlau kav muaj txiaj ntsig zoo hauv kev tiv thaiv corrosion thiab kev ua haujlwm hydraulic. Piv rau lwm cov khoom siv yeeb nkab,ductile hlau kav tsis tsuas yog hloov mus rau txoj kev tsim kho thiab ntau yam kev siv ib puag ncig, tab sis kuj muaj lub neej ntev kev pab cuam.

T- cov kav hlau txuas txuas txuas tau yooj yim rau nruab, muaj kev sib khi zoo, thiab tuaj yeem hloov kho rau qee qhov kev sib haum xeeb. Lawv lub kaum sab xis deflection tso cai rau ntev -kab raj xa dej rerouting,ua tau raws li qhov siab -kev ua tau zoo ntawm lub nroog, kev lag luam, thiab kev lag luam mining.

Cov kav hlau kav hlau, nrog rau lawv cov khoom siv ntawm cov hlau thiab kev ua haujlwm ntawm cov hlau, zoo heev corrosion kuj, zoo ductility, thiab yooj yim installation txheej txheem, tau dhau los ua cov khoom siv piping nyiamrau kev tsim kho hauv nroog, kev lag luam thiab kev lag luam mining 's dej thiab dej ntws, thiab kev tsim vaj tsev. Hauv kev txhim kho yav tom ntej, cov kav hlau kav hlau yuav txuas ntxiv ua lub luag haujlwm tseem ceeb, muab cov kav dej txhim khu kev qha rau kev tsim kho hauv nroog thiab kev tsim kho kev lag luam.