Yuav ua li cas peb tiv thaiv xeb ntawm qhov nthuav dav hlau mesh guardrail yog raws li hauv qab no:
1. Hloov cov qauv sab hauv ntawm cov hlau
Piv txwv li, tsim ntau yam corrosion-resistant alloys, xws li ntxiv chromium, npib tsib xee, thiab lwm yam rau cov hlau zoo tib yam los ua stainless hlau.
2. txheej txheej tiv thaiv
Npog cov hlau nto nrog txheej tiv thaiv cais cov khoom hlau los ntawm qhov nruab nrab corrosive los tiv thaiv corrosion.
(1). Txheej saum npoo ntawm cov hlau mesh nthuav dav nrog cov roj cav, roj av jelly, pleev xim lossis npog nws nrog cov khoom siv hlau tsis zoo xws li enamel thiab yas.
(2). Siv electroplating, kub plating, tshuaj tsuag plating thiab lwm txoj kev los pleev xim rau saum npoo ntawm cov hlau phaj nrog ib txheej ntawm cov hlau uas tsis yooj yim corroded, xws li zinc, tin, chromium, npib tsib xee, thiab lwm yam. Cov hlau no feem ntau tsim cov oxide zaj duab xis ntom ntom vim oxidation, yog li tiv thaiv dej thiab cua los ntawm corroding hlau.
(3). Siv cov txheej txheem tshuaj los tsim cov oxide zaj duab xis zoo thiab ruaj khov ntawm cov hlau nto. Piv txwv li, ib tug nplua dub ferric oxide zaj duab xis yog tsim nyob rau saum npoo ntawm steel phaj.
3. Electrochemical tiv thaiv txoj kev
Txoj kev tiv thaiv electrochemical siv lub hauv paus ntsiab lus ntawm galvanic hlwb los tiv thaiv cov hlau thiab sim tshem tawm cov tshuaj tiv thaiv galvanic cell uas ua rau galvanic corrosion. Electrochemical tiv thaiv txoj kev muab faib ua ob pawg: kev tiv thaiv anode thiab cathodic tiv thaiv. Txoj kev siv dav tshaj plaws yog kev tiv thaiv cathodic.
4. Kho cov xov xwm corrosive
Tshem tawm cov xov xwm corrosive, xws li nquag so cov khoom siv hlau, tso cov khoom desiccants rau hauv cov cuab yeej precision, thiab ntxiv ib qho me me ntawm cov tshuaj tiv thaiv corrosion uas tuaj yeem txo qis tus nqi corrosion rau cov xov xwm corrosive.
5. Kev tiv thaiv hluav taws xob
1. Txoj kev tiv thaiv kev txi rau anode: Txoj kev no txuas cov hlau nquag (xws li zinc lossis zinc alloy) rau cov hlau kom tiv thaiv. Thaum galvanic corrosion tshwm sim, cov hlau nquag no ua raws li qhov tsis zoo electrode kom dhau oxidation cov tshuaj tiv thaiv, yog li txo lossis tiv thaiv Corrosion ntawm cov hlau tiv thaiv. Txoj kev no feem ntau yog siv los tiv thaiv steel pawg thiab cov plhaub ntawm cov nkoj hauv hiav txwv hauv dej, xws li kev tiv thaiv steel rooj vag hauv dej. Ob peb daim ntawm zinc feem ntau yog welded hauv qab dej ntawm lub nkoj lub plhaub los yog ntawm lub rudder ze ntawm lub kiv cua kom tiv thaiv lub hull, thiab lwm yam ntawm corrosion.
2. Txaus siab rau txoj kev tiv thaiv tam sim no: Txuas cov hlau kom tiv thaiv cov ncej tsis zoo ntawm cov khoom siv hluav taws xob, thiab xaiv lwm daim ntawm cov khoom siv hluav taws xob inert txuas mus rau tus ncej zoo ntawm lub zog hluav taws xob. Tom qab energization, tsub zuj zuj ntawm cov nqi tsis zoo (electrons) tshwm sim ntawm cov hlau nto, yog li inhibiting cov hlau los ntawm poob electrons thiab ua tiav lub hom phiaj ntawm kev tiv thaiv. Txoj kev no tsuas yog siv los tiv thaiv corrosion ntawm cov khoom siv hlau hauv av, dej hiav txwv thiab dej hiav txwv. Lwm txoj kev ntawm kev tiv thaiv electrochemical hu ua anode tiv thaiv, uas yog txheej txheem nyob rau hauv uas lub anode passivated nyob rau hauv ib tug tej yam muaj peev xwm ntau yam los ntawm kev thov ib tug sab nraud voltage. Nws tuaj yeem thaiv lossis tiv thaiv cov khoom siv hlau los ntawm kev ua kom cov kua qaub, alkalis thiab ntsev.
Post lub sij hawm: Feb-22-2024