Uru na nyocha ntụle zuru oke nke usoro ọgwụgwọ dị n'elu maka ngwa ngwa. 

I. Usoro ọgwụgwọ elu elu maka ngwa ngwa na uru ha bara

1. Electrogalvanizing (gụnyere Blue-White Zinc na Agba Zinc)

Electrogalvanizing (oyi galvanizing) bụ usoro na-etinye akwa zinc edo edo n'elu ihe mgbakwunye site na electrolysis, dị n'ụdị dị ka zinc na-acha anụnụ anụnụ na zinc agba. Ọ bụ usoro ọgwụgwọ dị ọnụ ala kachasị anabatara maka ngwakọ azụmahịa. Uru ya bụ isi gụnyere teknụzụ tozuru oke, ọnụ ala dị ala, ọkpụrụkpụ mkpuchi a na-achịkwa (5-15μm), imecha elu elu, yana ọtụtụ nhọrọ agba, na-eme ka ọ dabara maka ọdịdị a chọrọ n'ime ọnọdụ ọkụ mgbochi corrosion n'ime ụlọ. Maka eriri eriri obere nha (dịka, n'okpuru M8), electrogalvanizing anaghị egbochi eri ma ọ bụ oghere, na-enye ọrụ mgbakọ dị mma, nnweta ahịa dị oke elu, yana obere usoro nhazi.

Ekwesiri iburu n'uche na electrogalvanizing nwere ụfọdụ ihe ize ndụ nke mwepu hydrogen na ọ bụ naanị maka ihe nkedo nwere ike siri ike n'okpuru HRC38. Ọzọkwa, ya mgbochi corrosion arụmọrụ bụ agafeghị oke. Nnwale ịgba mmiri nnu na-anọpụ iche (NSS) nke electrogalvanizing nkịtị na-abụkarị awa 24-96, nke enwere ike ịgbatị ihe karịrị awa 200 ka ejiri akara akara pụrụ iche, mana ọnụ ahịa ga-abawanye site na ugboro 5-8.

2. Ihe mkpuchi flake nke Zinc na-abụghị Electrolytic (Dacromet/DACROMET)

Dacromet bụ ụdị mkpuchi ọhụrụ nke mejupụtara ntụ ntụ zinc, ntụ ntụ aluminom, na chromic acid, nke emere site na mkpuchi mwụda na ịsa achịcha. Ọ bụ usoro a na-ahọrọ maka ogologo oge mgbochi corrosion na gburugburu ebe siri ike, na-enwe uru ndị a ma ama: enweghị ihe ize ndụ embrittlement hydrogen, na-eme ka ọ dị mma maka ndị na-eme ihe ike dị elu; magburu onwe corrosion eguzogide, na a na-anọpụ iche nnu ịgba ule (NSS) oge nke 500-800 awa maka otu oyi akwa na 1500-2000 awa maka a okpukpu abụọ oyi akwa, tinyere ezi okpomọkụ iguzogide (ogologo oge ≤250 ℃); njikwa arụmọrụ esemokwu ziri ezi, nke na-eme ka njigide ike na-adịgide adịgide maka njikọ dị oke egwu ma dabara adaba maka ọnọdụ nwere nnukwu ihe achọrọ maka iguzosi ike n'ezi ihe njikọ.

Ọdịmma ya na-adịghị mma na-eme mgbanwe maka obere ihe nkpuchi dị n'okpuru M8 ma ọ bụ n'ime eriri eriri eriri, dịka mkpuchi nwere ike imetụta mgbakọ; Ọkwa dị oke ọnụ ahịa, nnweta ahịa izugbe, yana Dacromet ọdịnala nwere chromium hexavalent, yabụ ekwesịrị ka etinye nlebara anya na nnabata gburugburu ebe obibi.

3. Hot-Dip Galvanizing

Hot-mikpu galvanizing bụ a benchmark usoro maka n'èzí arọ mgbochi corrosion ndapụta, na-akpụ a mkpuchi site imikpu fasteners na zinc a wụrụ awụ na 440-460 ℃. Uru ya bụ isi bụ mkpuchi siri ike (50-100μm), adhesion siri ike, yana nguzogide mmebi dị mma. Ọbụlagodi na ọkpụkpụ a na-eme n'elu, ọ nwere ike ịga n'ihu na-eguzogide corrosion site na mmetụta anode nke zinc, yana oge NSS nke 300-1000 awa mgbe ngafe gachara. Usoro a nwere ọnụ ahịa ọkara, ezigbo nnweta ahịa, yana ihe egwu embrittlement hydrogen dị ala maka ihe nkedo ike dị elu, na-eme ka a na-eji ya n'ọtụtụ ebe n'ime ihe nrụpụta n'èzí.

Mkpebi ya adịghị mma n'elu imecha, adịghị mma maka ọnọdụ mgbakọ nkenke; obere eriri eriri eriri dị n'okpuru M8 chọrọ ịkụ aka nke abụọ mgbe ọgwụgwọ gasịrị, na-emetụta arụmọrụ; na nhazi usoro nwere ike ime ka tempering ekweghị ekwe mgbanwe, n'ihi ya, ọ na-machibidoro iji 12.9-ọkwa ma ọ bụ alloy ígwè ọkwa akụkụ.

4. Ọgwụgwọ Black Oxide (Blueing).

Ọgwụgwọ oji oxide (blueing) na-etolite ihe nkiri tetroxide iron siri dị 1-3μm (Fe₃O₄) n'elu ihe ndị na-ekesa ngwa ngwa site na oxidation dị elu. Ya isi uru bụ oke ala na-eri, obere nhazi okirikiri, na ọ dịghị mmetụta na fastener akụkụ ziri ezi, na-eme ka ọ dabara maka isi nchara mgbochi nke ala-nkenke akụkụ na ime ụlọ na-abụghị corrosive gburugburu. Usoro a na-achọghị electroplating, ọ dịghị hydrogen embrittlement ize ndụ, na-eje ozi dị ka ihe echekwabara nhọrọ maka ndị na-abụghị ekpughere akụkụ dị ka esịtidem nnyefe nke ngwaọrụ ngwaọrụ na njikọ akụkụ nke ngwá ọrụ bases.

Ọrụ mgbochi corrosion ya bụ nke na-esighị ike, yana oge nnwale ịgba nnu nnu na-anọpụ iche nke naanị awa 4-24, nke enwere ike ịgbatị ruo awa 48-72 mgbe akara imi mmiri mmanụ, naanị na-egbo mkpa mgbochi mgbochi nchara, na gloss elu dị ala, na-enweghị ihe eji achọ mma.

II. Ntụle kwụ ọtọ nke mmemme isi nke usoro isi

Maka ndụmọdụ ndị ọzọ ahaziri ahazi, a na-akwado ndụmọdụ teknụzụ ọkachamara.