Akụkọ

Galvanizing na-ekpo ọkụ na-ekpo ọkụ, nke a makwaara dị ka ikpo ọkụ na-ekpo ọkụ na-ekpo ọkụ na-ekpo ọkụ na-ekpo ọkụ, bụ usoro dị irè nke mgbochi corrosion metal, nke a na-ejikarị maka ihe owuwu ígwè na ụlọ ọrụ dị iche iche.Ọ bụ imikpu akụkụ nchara ahụ emebi emebi na zinc a wụrụ awụ na ihe dịka 500 ℃ iji jide oyi akwa zinc n'elu ihe nchara ahụ, si otú a na-enweta ebumnuche nke mgbochi corrosion.Hot itinye galvanizing usoro eruba: okokụre ngwaahịa pickling - mmiri ịsacha - na-agbakwụnye inyeaka plating ngwọta - ihicha - nghọta plating - jụrụ - ọgwụ - ihicha - polishing - mmecha nke na-ekpo ọkụ itinye galvanizing galvanizing 1. Hot itinye galvanizing galvanizing na-mepụtara si okenye na-ekpo ọkụ itinye galvanizing usoro, na nwere a akụkọ ihe mere eme nke ihe karịrị 170 afọ kemgbe France 18 na-etinyere na-ekpo ọkụ dip na afọ gara aga. mmepe nke igwe na-ekpo ọkụ na-ekpo ọkụ na-ekpo ọkụ, ụlọ ọrụ na-ekpo ọkụ na-ekpo ọkụ na-ekpo ọkụ na-emepụta n'ọtụtụ buru ibu.
Galvanizing na-ekpo ọkụ na-ekpo ọkụ, nke a makwaara dị ka ihe na-ekpo ọkụ na-ekpo ọkụ, bụ usoro maka inweta ihe mkpuchi ígwè na ihe ndị dị nchara site n'itinye ha na zinc a wụrụ awụ.Site na mmepe ngwa ngwa nke nnyefe ọkụ eletrik dị elu, njem, na nkwukọrịta, ihe ndị a chọrọ maka nchebe nke akụkụ ígwè na-arịwanye elu, na ọchịchọ maka ikpo ọkụ na-ekpo ọkụ na-arịwanye elu.

Ọrụ nchekwa
N'ozuzu, ọkpụrụkpụ nke galvanized oyi akwa bụ 5 ~ 15 μm.Igwe ọkụ na-ekpo ọkụ na-ekpo ọkụ na-adịkarị na 35 μ N'elu m, ọbụna ruo 200 μm. Ịkụnye ihe na-ekpo ọkụ na-ekpo ọkụ nwere ikike mkpuchi dị mma, mkpuchi dị oke, na enweghị ihe mgbakwunye organic.A maara nke ọma na usoro nke zinc na-eguzogide corrosion ikuku na-agụnye nchedo igwe na nchedo electrochemical.N'okpuru ọnọdụ corrosion nke ikuku, elu nke zinc oyi akwa nwere ZnO, Zn (OH) 2, na ihe nkiri nchebe zinc carbonate bụ isi, nke na-ebelata nbibi nke zinc ruo n'ókè ụfọdụ.Ọ bụrụ na ihe nkiri nchebe a (nke a makwaara dị ka nchara ọcha) mebiri emebi, ọ ga-emepụta oyi akwa ihe nkiri ọhụrụ.Mgbe oyi akwa zinc mebiri nke ukwuu ma na-etinye mkpụrụ nke ígwè ahụ n'ihe ize ndụ, zinc na-enye nchebe electrochemical na mkpụrụ.Ụdị ikike nke zinc bụ -0.76V, na ike ọkọlọtọ nke ígwè bụ -0.44V.Mgbe zinc na ígwè na-etolite micro batrị, zinc na-agbaze dị ka anode, na ígwè na-echebe dị ka cathode.N'ụzọ doro anya, nguzogide corrosion ikuku nke na-ekpo ọkụ itinye galvanizing na isi ígwè ígwè dị mma karịa nke electrogalvanizing.
Usoro nhazi mkpuchi zinc
Usoro nhazi nke ikpo ọkụ na-ekpo ọkụ galvanized oyi akwa bụ usoro nke ịmepụta ígwè zinc alloy n'etiti ígwè ígwè na zinc oyi akwa dị ọcha n'èzí nke Z. A na-emepụta ihe mkpuchi ígwè zinc alloy n'elu nke workpiece n'oge ikpo ọkụ na-ekpo ọkụ, nke na-enye ohere maka njikọ dị mma n'etiti ígwè na akwa zinc dị ọcha.Usoro nwere ike nanị kọwara dị ka ndị a: Mgbe ígwè workpiece na-emikpu ke a wụrụ awụ zinc mmiri mmiri, zinc na zinc mbụ kpụrụ na interface α Iron (isi isi) siri ike gbazee.Nke a bụ kristal kpụrụ site na igbari atọm zinc na steeti siri ike nke ígwè isi ala.Atọm ọla abụọ a jikọtara ọnụ, na mmasi dị n'etiti atọm ahụ pere mpe.Ya mere, mgbe zinc erute saturation na siri ike gbazee, abụọ elemental atọm nke zinc na ígwè na-agbasa n'otu n'otu, na zinc atọm diffused n'ime (ma ọ bụ infiltrated n'ime) ígwè matrix ịkwaga na matrix lattice, nke nta nke nta akpụ alloy na ígwè, mgbe ígwè na zinc diffused n'ime a wụrụ awụ zinc mmiri mmiri site na-ekpo ọkụ nchara 3 nchara nke gal-ike 3 nke na-ekpo ọkụ na-eme ka ihe dị n'ime ya na-eme ka ọkpụkpụ na-esi ísì ụtọ na-eme ka ọkpụkpụ na-esi ísì ụtọ na-eme ka ọ bụrụ ihe na-esi ísì ụtọ. izing ite, na-akpụ zinc slag.Mgbe a na-ewepụ ihe ahụ na-arụ ọrụ na ngwọta ntinye zinc, a na-emepụta akwa zinc dị ọcha n'elu, nke bụ kristal hexagonal.Ọdịnaya ígwè ya adịghị elu karịa 0.003%.
Esemokwu nka
Nguzogide corrosion nke galvanizing na-ekpo ọkụ dị elu karịa nke oyi galvanizing (nke a makwaara dị ka galvanization).Hot galvanizing agaghị nchara n'ime afọ ole na ole, ebe oyi galvanizing ga-nchara n'ime ọnwa atọ.
A na-eji usoro electrogalvanizing echebe ọla site na corrosion."A ga-enwe ezigbo mkpuchi mkpuchi ígwè na nsọtụ na n'elu ngwaahịa ahụ, nke na-agbakwụnye akụkụ mara mma na ihe bara uru.N'oge a, nnukwu ụlọ ọrụ na-enwewanye ihe achọrọ maka akụkụ ngwaahịa na teknụzụ, yabụ ọ dị mkpa ịgbanwe teknụzụ n'oge a. "