Galvanizing na-ezo aka na teknụzụ ọgwụgwọ elu nke ịkwanye akwa zinc n'elu ígwè, alloy ma ọ bụ ihe ndị ọzọ maka nzube nke ịma mma na mgbochi nchara. Ụzọ bụ isi bụ ịgbanye galvanizing ọkụ.
Zinc bụ soluble na acid na alkali, n'ihi ya, a na-akpọ amphoteric metal. Zinc na-agbanwe ntakịrị na akọrọ air.In ooh ikuku, na zinc elu ga-etolite a ok isi zinc carbonate film.Containing sọlfọ dioxide, hydrogen sulfide na mmiri ikuku, zinc corrosion. nguzogide adịghị mma, karịsịa na okpomọkụ dị elu na iru mmiri dị elu nwere ikuku acid organic, mkpuchi zinc dị mfe imebi. Ụdị electrode nke zinc bụ -0.76v.Maka matrix ígwè, mkpuchi zinc bụ nke mkpuchi anodic, nke a na-ejikarị egbochi mmebi nke ígwè.Ọrụ nchebe ya nwere mmekọrịta dị ukwuu na ọkpụrụkpụ mkpuchi. Ihe nchebe na ihe ịchọ mma nke mkpuchi zinc nwere ike ime ka ọ dịkwuo mma site na ngafe, nsị ma ọ bụ mkpuchi na onye na-echebe ya.
Ụkpụrụ bụ ngwa ngwa oxidize n'elu ígwè na ígwè ngwaahịa na-etolite a ok oxide film nchebe Layer.There abụọ na-ejikarị ụzọ blackening: omenala alkaline kpo oku blackening na mbubreyo blackening na ụlọ okpomọkụ.Ma mmetụta nke ụlọ okpomọkụ blackening usoro. na obere carbon ígwè adịghị mma.Ọ ka mma ka blacken A3 ígwè na alkali.Alkalescent blackening na-ekewa, nwere ọzọ blackening na abụọ blackening iche.The isi components nke black mmanya bụ sodium hydroxide na sodium nitrite.The okpomọkụ a chọrọ maka blackening bụ. obosara, sitere na ihe dị ka 135 Celsius ruo 155 Celsius, ị ga-enwetakwa elu dị mma, ma ọ na-ewe oge ụfọdụ. Na ọrụ bara uru, a ga-akwụ ụgwọ nlebara anya n'ịdị mma nke nchara na mwepụ mmanụ tupu blackening nke workpiece, na Passivation mmanụ imikpu mgbe blackening.The àgwà nke blackening na-adịgasị iche na ndị a usoro.Metal "bluing" ọgwụ mmiri mmiri na-anabata alkaline oxidat.ion ma ọ bụ acid oxidation. Usoro nke ịmepụta ihe nkiri oxide na elu igwe iji gbochie corrosion ka a na-akpọ "bluing". oyi akwa dị n'ime bụ ferrous oxide.
A na-ejikarị bolts dị elu mee ihe na nkwonkwo ndị dị mkpa, n'okpuru nrụgide dị ukwuu na shear. Nzọụkwụ ikpeazụ na nhazi nhazi bụ ọgwụgwọ okpomọkụ, nke a na-akpọkarị quenching, iji mee ka ike nke bolts dịkwuo elu. Otú ọ dị, hydrogen ebrittlement na-eme ngwa ngwa n'ime usoro. galvanizing bolts.Hydrogen embrittlement na-emekarị e ji egbu oge fracture.Nke a na-ebelata ike nke elu-ike bolts.Ya mere, n'elu ojii na-emepụta site na reheat ọgwụgwọ nke elu-ike bolts bụ a dịtụ ike oxidation film.Ọ gaghị nchara mgbe ọ adịghị na kọntaktị na corrosive bekee.
https://www.china-bolt-pin.com/
Oge nzipu: Sep-09-2019