Cov dej nyob rau hauv qab ntawm lub tsheb tsis tshaj tawm tsis zoo li ntau cov khoom siv sib xyaw uas tau nchuav hla txoj kev los tiv thaiv lawv ntawm icing. Xws li cov lus ntau heev ua rau txheej txheem ntawm xeb tsim. Kev xeb tuaj yeem ua rau muaj kev puas tsuaj rau lub cev - txog li ntawm qhov. Kev kho cov kab hauv qab ntawm tsheb yog qhov tsim nyog ntsuas kom tiv thaiv cov hlau ntawm kev tsim xeb. Lub tsheb yuav pabcuam rau lub sijhawm ntev thiab kom yog yog coj los ua li ntawm lub sijhawm.
Cov tsheb niaj hnub ntawm kev tsim tawm txawv teb chaws tuaj yeem ua yam tsis muaj kev ua tshwj xeeb rau lub sijhawm ntev heev. Nws raug nquahu kom ua cov qauv hauv tsev tam sim tom qab kev yuav khoom. Cov tsheb siv tau xav tau tsis tu ncua thiab ua tiav kev tiv thaiv kev txhim kho ntawm cov neeg hauv qab.
Hom kev tiv thaiv kev xeb
Kev tiv thaiv kev tiv thaiv hlau tuaj yeem muab faib ua ob hom:
- ntsiag to;
- nquag.
Qhov hom tsis zoo ntawm cov xeb thaiv kev txhais tau tias ib txheej txheej tiv thaiv yuav tsim rau saum npoo ntawm lub cev tsheb. Qhov tiv thaiv zaj duab xis no yuav cais lub cev kom ya raws.
Cov lus sib xyaw ntawm cov khoom lag luam no tsis suav nrog cov khoom sib xyaw uas tiv thaiv qhov tshwm sim hauv corrosion. Lawv tsuas yog tiv thaiv lub cev nrog zaj duab xis uas tsim rau ntawm lub cev ntawm lub tsheb. Lub thickness ntawm no zaj duab xis tsis loj heev. Raws li txoj cai, 2-3 hli, tsis muaj ntxiv. Thov cov khoom lag luam hauv cov txheej tuab dua yog tsis zoo. Xws li cov khoom lag luam yuav luag ib txwm ua nyob rau hauv paus ntawm resins, mastics, bitumen lossis elastomer.
Kev txhais tau zoo rau kev tiv thaiv lub cev tsis yog tsim cov yeeb yaj kiab tiv thaiv xwb, tab sis kuj tseem tawm tsam txhua qhov kev qhia ntawm kev xeb. Cov neeg tshwj xeeb hloov pauv qhov pom ntawm xeb mus rau qhov chaw ruaj khov phosphate. Cov khoom lag luam no suav nrog phosphoric acid, uas yog suav hais tias yog qhov zoo tshaj plaws corrosion inhibitor.
Raws li rau qhov sib xws ntawm cov khoom lag luam, lawv tuaj yeem ua rau khov dej (piv txwv li, sib txawv ntawm cov pwm sib txawv), los yog ua kua, thiab tseem yuav tau txau hauv qab lub siab. Ob qhov viscous thiab kua ua qauv ua lawv cov haujlwm nyob rau ntawm tib txoj kev. Tab sis muaj qhov sib txawv hauv cov txheej txheem ntawm kev thov.
Cov tshuaj ua kua txau dej tuaj yeem nkag rau txhua qhov yooj yim txaus. Tseeb, thaum txau, lub teeb huab cua yog tsim los ntawm cov tee me me ntawm tus neeg sawv cev. Kuj suav nrog cov tshuaj tsuag yog qhov ntev, nyias ntim, uas tuaj yeem siv kom ncav cuag qhov chaw uas nkag mus tau zoo tshaj plaws.
Nws yog qhov nyuaj heev rau lub tsho tiv no kaw cov kab noj hniav nrog cov khoom siv los tiv thaiv corrosion. Xws cov qauv no feem ntau tau siv los ntawm tes siv dav txhuam.
Underbody anticorrosive cov ntaub ntawv
Rau kev kho mob ntawm cov npoo ntawm sab hauv thiab hauv qab, slate mastic yog siv. Tom qab nws daim ntawv thov, bituminous zaj duab xis yog tsim. Qhov no saib kuas yuav luag ua tiav dej ntawm lub cev.
Hauv qab thiab lub log tawm ntawm sab hauv thiab sab nraud tuaj yeem kho nrog rubber-bitumen mastic. Ntxiv rau kev tiv thaiv tiv thaiv xeb, roj hmab-bitumen mastic yuav tiv thaiv cov cuam tshuam nrog gravel. Tsis tas li, cov khoom lag luam tuaj yeem tiv thaiv kev txhav hnyav.
Ib lub mastic ua raws li bitumen thiab roj hmab tiv thaiv sab nraud thiab sab hauv lub cev, nrog rau cov chaw tsis raug - sills, arches, pob tw, thiab lwm yam.
Cov neeg sawv cev tshaj plaws los tiv thaiv xeb yog Movil. Nws yuav ntseeg tau tiv thaiv txhua qhov ntawm lub tsheb lub cev, suav nrog pob qij txha thiab pob qij txha. Movil kis tau zoo thoob plaws saum npoo, sai sai ua ib txheej waxy, tshem tawm ya raws.
Ntxiv nrog rau cov tshuaj tiv thaiv anticorrosives, qhov pib kho hluav taws xob tuaj yeem siv tau. Lawv yuav tsis tsuas yog tiv thaiv qhov ntsuas ntawm lub tsheb, tab sis kuj txuag lub qhov rooj, tus ncej thiab lwm cov ntsiab lus los ntawm kev sib xyaw deicing.
Ua ntej siv cov tshuaj tiv thaiv anticorrosive, nws yog ib qho tsim nyog yuav tsum npaj kom zoo ntawm cov txheej txheem ntawm lub cev rau daim ntawv thov ntawm tus neeg sawv cev anticorrosive. Thaum ua ntawv thov cov khoom lag luam, qhov tsim nyog ua ntej yog kev ua raws li kev pom zoo thiab ntsuas lub sijhawm. Yog tias cov kev ntsuas no tau raug soj ntsuam, kev tiv thaiv kho xeb ntawm lub tsheb hauv qab yuav ua tau zoo tshaj.
