Teknụzụ nchekwa nke Cathodic bụ ụdị teknụzụ nchebe elektrọnịkị, nke na-emetụta mpụta mpụta n'elu ihe owuwu ọla mebiri emebi. Ihe owuwu a na-echekwa na-aghọ cathode, si otú ahụ na-egbochi mkpagharị eletrọn nke na-eme n'oge mmebi ígwè na izere ma ọ bụ ibelata ihe omume nke corrosion.

Enwere ike kewaa teknụzụ nchebe Cathodic ka ọ bụrụ nchekwa anode cathodic ịchụ aja na nchebe cathodic dị ugbu a masịrị. Nke a na nkà na ụzụ bụ isi tozuru okè na ọtụtụ-eji maka corrosion akara nke metal owuwu dị ka ígwè pipeline, mmiri nfuli, cables, ọdụ ụgbọ mmiri, ụgbọ mmiri, tank ala, coolers, wdg na ala, oké osimiri, freshwater, na chemical media.

Ịchụ àjà anode cathodic nchebe bụ usoro nke ijikọ ọla abụọ na ọrụ dị iche iche ma tinye ha n'otu electrolyte. Igwe na-arụsi ọrụ ike na-efunahụ elektrọn ma na-emebi emebi, ebe igwe anaghị arụ ọrụ na-enweta nchebe elektrọn. N'ihi nrụrụ nke ọla ndị na-arụsi ọrụ ike nke ukwuu n'oge usoro a, a na-akpọ ya nchekwa anode cathodic àjà.

A na-enweta nchedo cathodic nke dị ugbu a site n'ịgbanwe ikike nke gburugburu ebe obibi site na isi iyi ike nke mpụga, nke mere na ike nke ngwá ọrụ a ga-echebe na-anọgide na-adị ala karịa nke gburugburu ebe obibi, si otú ahụ ghọọ cathode nke gburugburu ebe obibi. N'ụzọ dị otú a, akụrụngwa a ga-echebe agaghị emebi emebi n'ihi mfu nke electrons.

Ụkpụrụ ọrụ

Jiri ọla kọpa na aluminom alloys dị ka anodes na usoro akụrụngwa echedoro dị ka cathodes. Ions ọla kọpa enwetara site na electrolyzing ọla kọpa anodes na-egbu egbu ma na-etolite ebe na-egbu egbu mgbe agwakọtara ya na mmiri osimiri. Ihe electrolytic aluminum anode na-emepụta Al3 +, nke na-emepụta Al (OH) 3 na OH - nke cathode mepụtara. Ụdị l (OH) 3 a na-ekpuchi ions ọla kọpa a tọhapụrụ ma na-agafe na usoro echedoro na mmiri mmiri. Ọ nwere ikike mgbasa ozi dị elu ma nwee ike gbasaa n'ime ebe mmiri mmiri na-eji nwayọọ nwayọọ na-erugharị ebe ihe ndị dị n'oké osimiri nwere ike ibi, na-egbochi uto ha. Mgbe usoro ọla kọpa aluminom anode na-eme ka mmiri dị n'oké osimiri, a na-emepụta akwa akwa calcium na magnesium n'ime ime nke pipeline ígwè dị ka cathode, na aluminum hydroxide colloid nke electrolysis mepụtara na-asọba na mmiri mmiri, na-eme ihe nkiri nchebe na mgbidi dị n'ime nke pipeline. Ihe mkpuchi calcium magnesium na ihe nkiri colloidal aluminom hydroxide na-egbochi mgbasa nke ikuku oxygen, na-amụba polarization ntinye uche, ma na-ebelata ọnụ ọgụgụ corrosion, nke nwere ike imezu nzube nke mgbochi mmebi na mgbochi corrosion.