Nchara na-acha ọcha bụ ihe na-eme n'azụ-galvanizing. Ọrụ maka mgbochi ya dabere n'ụdị a na-achịkọta ya, hazie ya na chekwaa ya tupu etinye ya na iji ngwaahịa galvanized. Ọnụnọ nke nchara na-acha ọcha abụghị ihe na-egosi arụmọrụ nke mkpuchi galvanized, kama ọ bụ ọrụ nke ndị niile na-etinye aka na agbụ ọkọnọ iji hụ na a ghọtara ihe ndị na-akpata nchara ọcha na ihe ize ndụ nke ihe omume ya na-ebelata na ígwè ọhụrụ galvanized. Mgbe ọ na-abịa na China na-ekpo ọkụ na-ekpo ọkụ galvanized ọkpọkọ, ebe a na-ekpuchi ígwè ọhụrụ galvanized na mmiri dị ọcha (mmiri ozuzo, igirigi ma ọ bụ condensation), na ikuku oxygen na-adịghị, mmiri ga-anọgide na-emeghachi omume na zinc ma jiri nwayọọ nwayọọ na-eri ihe mkpuchi ahụ. Ọnọdụ a na-ahụkarị nke nchara na-acha ọcha na-eme bụ na ngwaahịa galvanized bụ ndị a na-ejikọta ọnụ, na-akpachi anya nke ọma, ma ọ bụ mgbe mmiri nwere ike ịbanye n'etiti ihe ndị ahụ ma nọrọ ruo ogologo oge.
N'ozuzu, mmiri dị ọcha (H2O) enweghị nnu ma ọ bụ mineral gbazere na zinc ga-eji mmiri dị ọcha mee ngwa ngwa iji mepụta zinc hydroxide, nnukwu ọcha na oxide zinc na-adịghị akwụsi ike. Ọkpụkpụ ígwè nwere ihe mkpuchi dị mkpa nke zinc jikọtara ya na mkpụrụ nchara. Nchikota a na-enye ihe nwere ihe eji arụ ọrụ nke ígwè emelitere na nguzogide corrosion nke zinc. Otú ọ dị, ozugbo a wakporo elu galvanized na ogige zinc hydroxide etolitela, ọ bụ ihe na-achọsi ike iwepụ ngwaahịa oxide n'elu n'ihi na: 1) ọnụnọ ha na-egbochi ịmepụta oxides carbonate kwụsiri ike; 2) ha na-adịghị mma.
N'ihe gbasara ọkpọkọ igwe na-ekpo ọkụ na-ekpo ọkụ, ịghagharị n'elu galvanized bụ ọgwụgwọ ọzọ dị oke mkpa maka ọkpọ ígwè na-arụ ọrụ. Kpọmkwem, ebe nchara na-acha ọcha mere na ihe ahụ nwere ike ịnọ n'okpuru ikpughe na-aga n'ihu nke nwere ike ịgbasa corrosion yiri nke ahụ, enwere ike ịmegharị elu elu site na ịgwọ elu ya na ngwọta nke 5% sodium dichromate 0.1% sulfuric acid, na-ehichapụ ya. ahịhịa siri ike waya maka sekọnd 30 tupu sachaa nke ọma nke ọma. Dị ka ọkachamara China ígwè tube emeputa na China, anyị ga-achọ inye a ọnụ ọgụgụ nke dị mfe nzọụkwụ nke nwere ike dị ukwuu ibelata ma ọ bụ kpochapụ e guzobere ọcha nchara dị ka ndị a maka gị echiche:
• Mee ka ọrụ ahụ ekpokọtara akpọọ nkụ
• Kwakọba ihe ndị ahụ iji mee ka ikuku na-ekesa n'etiti elu
• Kwakọba ihe ndị ahụ juru n'ọnụ ka mmiri wee pụta
• Jiri ihe mgbochi mmiri ma ọ bụ ihe mgbochi mesoo elu ahụ ka ọ ghara ime ka mmiri ghara ịdị na mbara ala galvanized.
Zitere anyị ozi gị:
Oge nzipu: Ọgọst-20-2018
