Muab piv rau ib txwm ib txwm- cov khoom siv steel kav thiab cov kav dej yas, qhov zoo tshaj plaws ntawm cov kav dej bimetallic yog qhov ua tau zoo ntawm ob cov ntaub ntawv hlau, daws qhov teeb meem uas cov kav dej ua los ntawm ib qho khoom siv tsis tuaj yeem muaj ntau yam khoom. Txawm hais tias cov kav hlau ib txwm muaj lub zog siab thiab kub tsis kam, lawv muaj kev tiv thaiv corrosion tsis zoo. Hauv cov xwm txheej ntawm kev thauj mus los ntawm cov tshuaj lom neeg thiab cov dej phwj tuaj, lawv tau yooj yim corroded los ntawm cov xov xwm thiab yuav tsum tau hloov sai li sai tau raws li ib lossis ob xyoos, uas tsis yog tsuas yog nce nqi kev yuav khoom tab sis kuj cuam tshuam rau kev ua haujlwm ib txwm ua ntawm qhov project. Ntawm qhov tod tes, txawm hais tias cov kav dej yas yog corrosion-resistant, lawv lub zog tsis txaus. Nyob rau hauv kev kub siab, kub siab, los yog hnyav load ib puag ncig, lawv muaj kev puas tsuaj thiab kev laus, ua rau muaj kev nyab xeeb tseem ceeb.
Bimetallic composite kav siv ob - txheej txheej txheej, feem ntau yog siv cov pa roj carbon steel los yog stainless hlau ua cov khoom siv hauv paus, ua ke nrog corrosion- tiv taus thiab hnav- cov txheej txheem alloy. Qhov kev sib txuas seamless no tau ua tiav los ntawm kev siv tshuab metallurgical composite, khaws lub zog siab thiab cuam tshuam ntawm cov khoom siv hauv paus thaum muaj kev tiv thaiv corrosion, hnav tsis kam, thiab siab - kub tsis kam ntawm cov hlau txheej. Thaum thauj cov corrosive acidic los yog alkaline xov xwm, cov txheej txheej txheej ntawm cov yeeb nkab bimetallic composite zoo tiv thaiv kev yaig, thaum cov khoom siv sab nraud tuaj yeem tiv taus siab. Qhov no ua rau muaj kev pabcuam lub neej 3-5 zaug ntev dua li cov kav dej ib txwm siv, txo cov nqi hloov pauv thiab kev saib xyuas haujlwm.
Tus nqi zoo tshaj -kev ua tau zoo yog lwm qhov laj thawj tseem ceeb vim li cas cov kav dej bimetallic puas tau xaiv dav. Ntau tus neeg ntseeg yuam kev tias cov kav dej bimetallic composite, raws li cov ntaub ntawv sib xyaw, yog kim dua li cov kav dej ib txwm siv, tab sis hauv kev siv tiag tiag, lawv cov nqi tag nrho yog qis dua. Ntawm ib sab, cov kav dej bimetallic tsis tas yuav tsum muaj kev tiv thaiv kev tiv thaiv- kev kho corrosion ntawm cov kav hlau ib txwm muaj, txuag cov txheej txheem ntxiv xws li tiv thaiv- coatings coatings thiab cathodic tiv thaiv, yog li txo cov nqi tsim kho. Ntawm qhov tod tes, lawv lub neej kev pabcuam txuas ntxiv zam kev poob qis thiab cov nqi yuav khoom thib ob tshwm sim los ntawm kev hloov cov yeeb nkab ntau zaus. Rau cov haujlwm uas muaj kev ua haujlwm ntev - lub sijhawm ua haujlwm, xaiv cov kav dej sib xyaw bimetallic sib npaug rau ib qho - lub sijhawm peev nrog cov txiaj ntsig ntev - cov txiaj ntsig, ua rau lawv cov nqi- ua tau zoo dua li cov kav ib txwm siv - cov khoom siv kav.
Nrog rau ntau yam kev siv, cov kav dej bimetallic composite tuaj yeem ua tau raws li tus kheej xav tau ntawm ntau yam kev lag luam. Cov kev qhia tshwj xeeb thiab cov khoom siv ntawm cov kav dej no tuaj yeem kho tau rau cov xwm txheej sib txawv. Txawm hais tias nws yog siab - kub, siab - kev thauj mus los hauv petrochemical, kev thauj mus los ntawm kuv cov tailings hnyav, dej hauv nroog, cov kav dej cua sov, lossis txawm tias ib puag ncig hnyav xws li marine engineering, muaj cov qauv tsim nyog. Hauv kev siv mining, sab hauv phab ntsa ntawm cov yeeb nkab yog yooj yim hnav los ntawm cov xuab zeb thiab pob zeb thaum lub sij hawm thauj mus los. Cov hnav-resistant alloy txheej ntawm bimetallic composite yeeb nkab zoo tiv taus hnav, txo cov yeeb nkab thaiv thiab puas. Hauv cov dej hauv nroog, nws cov corrosion-cov khoom tiv thaiv tiv thaiv cov yeeb nkab xeb, ua kom cov dej zoo muaj kev nyab xeeb thiab ua tau raws li kev tiv thaiv ib puag ncig ntawm kev tsim kho hauv nroog niaj hnub.
