Corrosion yog cov txheej txheem ntawm kev poob thiab rhuav tshem cov ntaub ntawv (suav nrog cov ntaub ntawv hlau thiab cov hlau, acids, salts, cov ntsev, piv rau, thiab lwm yam). Lub corrosion tsis kam ntawm cov ntaub ntawv hlau, uas yog, lawv lub peev xwm tiv thaiv lub yaig ntawm nruab nrab, yog txiav txim siab los ntawm cov khoom siv tshuaj, tshuaj lom neeg thiab morphology ntawm cov khoom.
Ua ntej, kev faib tawm ntawm kev txhim kho corrosion tsis kam ntawm cov ntaub ntawv hlau
Corrosion tsis kam ntawm cov ntaub ntawv hlau tuaj yeem faib ua cov khoom hauv qab no raws li nws daim ntawv corrosion:
1. Tshuaj lom neeg corrosion: Qhov tshwm sim ntawm kev sib cuam tshuam ncaj qha ntawm cov hlau thiab ib puag ncig hauv nruab nrab, suav nrog roj corrosion thiab hlau corrosion nyob rau hauv tsis-electrolyte. Nws yog tus cwj pwm los ntawm txoj kev corrosion tsis tsim cov khoom tam sim no, corrosion khoom siv rau ntawm cov hlau nto.
2.. Electrochnical corrosion: Hlau thiab electrolyt tov ze corrosion. Tsiag ntawv los ntawm cov txheej txheem corrosion nyob rau hauv tiam tam sim no, cov khoom lag luam corrosion tsis duav lub anode hlau nto, tab sis nyob rau hauv ib qho kev ncua deb ntawm kev tsim.
3. General corrosion: tsis sib xws tshwm sim ntawm sab hauv thiab sab nraud ntawm cov hlau, yog li qhov kawg kev puas tsuaj rau cov kev ntxhov siab.
4. Qib inrogor: hauv cov hlau raws ntug ntawm cov nplej, tsis ua rau cov hlau ntawm cov hlau, tab sis tuaj yeem ua rau cov khoom puas tsuaj lossis kev puas tsuaj.
5. Taw tes corrosion: concentrated nyob rau hauv ib thaj chaw me me ntawm cov hlau nto, thiab sai sai rau qhov tob ntawm kev txhim kho, nkag rau cov hlau, qhov kev phom sij yog ntau dua.
6. Kev ntxhov siab corrosion: nyob rau hauv qhov kev txiav txim ntawm kev ntxhov siab zoo li qub, cov hlau hauv qhov nruab nrab ntawm kev puas tsuaj los ntawm kev puas tsuaj, feem ntau los ntawm cov nplej.
Thib ob, txhim kho lub corrosion tsis kam ntawm cov hlau
1. Kev siv hluav taws xob: steel nrog chromium, npib tsib xee, titanium thiab lwm cov ntsiab lus, tuaj yeem tsim zaj duab xis los txhim kho corrosion tsis kam.
2.. Electrochemical tiv thaiv: los ntawm kev thov hluav taws xob tam sim no lossis peev xwm, hloov hluav taws xob ntawm cov hlau, yog li nws tsis yooj yim rau corrode.
Corrosion Refort Kuj Txoj Kev
Corrosion Kuj kuaj yog qhov tseem ceeb txhais tau tias yog kev ntsuas lub durability cov ntaub ntawv. Cov qauv kev ntsuas suav nrog:
1. Ntsev tshuaj tsuag Kuaj: Simulate cov chaw muaj kev xeb hauv cov huab cua, los ntsuas cov corrosion tsis kam ntawm cov ntaub ntawv.
2. Kev ntsuas cua noo: simulate dej hiav txwv, chaw sov thiab lwm cov kev mob ib puag ncig, los ntsuas cov khoom siv xeb ntawm cov ntaub ntawv.
3. Canclic Corrosion Test: simulation ntawm kev tshuaj lom neeg thiab lub cev corrosion, los ntsuas cov corrosion tsis kam ntawm cov ntaub ntawv.
Corrosion Resistance Test Cov Qauv
Yuav kom ntseeg tau qhov tseeb thiab kev ntseeg tau ntawm cov txiaj ntsig kev sim, xws li ASTM G85, ISO 9227, GB \/ T 6461-2002 thiab lwm yam. Cov qauv no qhia cov hau kev tseeb, cov kev ntsuas thiab ntaus nqi ntsuas rau kev kuaj mob rau corrosion tsis kam ntawm cov ntaub ntawv hlau.
