Na injinia bara uru, enwere ụzọ nchebe atọ maka nchara nchara.
1.Usoro ihe nkiri nchebe
A na-eji ihe nkiri nchebe na-ekewapụ nchara site na gburugburu gburugburu, iji zere ma ọ bụ mee ka mmetụta na-emebi emebi nke ihe na-emerụ emerụ na mpụga na nchara.Dịka ọmụmaatụ, agba agba, enamel, plastik, wdg n'elu ígwè;ma ọ bụ jiri mkpuchi ọla dị ka ihe nkiri nchebe, dị ka zinc, tin, chromium, wdg.
2.Usoro nchedo eletrọnịkị
Enwere ike kewaa kpọmkwem ihe kpatara corrosion n'ime usoro nchebe na-adịghị ugbu a na usoro nchebe dị ugbu a masịrị.
A na-akpọkwa usoro nchebe na-adịghị ugbu a usoro anode nke ịchụ àjà.Ọ bụ ijikọ ígwè nke na-arụ ọrụ karịa ígwè, dị ka zinc na magnesium, na nhazi ígwè.N'ihi na zinc na magnesium nwere ikike dị ala karịa ígwè, zinc, na magnesium na-aghọ anode nke batrị corrosion.mebiri emebi (anode àjà), ebe a na-echebe ihe owuwu ígwè.A na-ejikarị usoro a eme ihe maka ebe ọ na-adịghị mfe ma ọ bụ na-agaghị ekwe omume ikpuchi oyi akwa mkpuchi, dị ka ndị na-ekpo ọkụ ọkụ, pipeline n'okpuru ala nke shells ụgbọ mmiri, ụlọ ọrụ injinia ọdụ ụgbọ mmiri, okporo ụzọ na akwa akwa, wdg.
Usoro nchebe nke etinyere ugbu a bụ idowe ụfọdụ nchara nchara ma ọ bụ ọla ndị ọzọ na-atụgharị n'akụkụ ihe owuwu nchara ahụ, dị ka igwe siliki dị elu na ọla-ọlaọcha, wee jikọọ mkpanaka na-adịghị mma nke ọkụ DC dị n'èzí na nchara echedoro, na A na-ejikọta ogwe osisi dị mma na nhazi metal refractory.Na metal, mgbe electrification, metal refractory na-aghọ anode na corroded, na ígwè Ọdịdị na-aghọ cathode na-echebe.
3.Taijin Chemical
A na-agbakwunye ígwè carbon na ihe ndị nwere ike imeziwanye nguzogide corrosion, dị ka nickel, chromium, titanium, ọla kọpa, wdg, iji mee nchara dị iche iche.
Enwere ike iji ụzọ ndị a dị n'elu iji gbochie corrosion nke ígwè ígwè na ihe a na-emesi ike, ma usoro kachasị mma na nke dị irè bụ iji melite njupụta na alkalinity nke ihe na iji hụ na ígwè ígwè nwere oke nchebe oyi akwa.
Na ngwaahịa hydration ciment, n'ihi calcium hydroxide nke ihe dị ka 1/5, uru pH nke ọkara dị ihe dị ka 13, na ọnụnọ calcium hydroxide na-eme ka ihe nkiri na-agafe agafe n'elu ígwè ígwè na-emepụta oyi akwa.N'otu oge ahụ, calcium hydroxide nwekwara ike ime ihe na elekere ikuku CQ iji belata alkalinity nke ihe, ihe nkiri passivation nwere ike ibibi, na nchara nchara dị na ọnọdụ arụ ọrụ.N'ebe dị mmiri mmiri, electrochemical corrosion na-amalite ime n'elu ígwè ígwè, na-eme ka mgbawa nke ihe dị n'akụkụ mmanya ahụ.Ya mere, a ghaghị imeziwanye nguzogide carbonization nke ihe site na imeziwanye compactness nke ihe.
Na mgbakwunye, ion chloride nwere mmetụta nke ibibi ihe nkiri passivation.Ya mere, mgbe ị na-akwadebe ihe siri ike, ọnụ ọgụgụ nke nnu chloride kwesịrị oke.
Oge nzipu: Ọktoba 10-2022