N'ihi na ịghasa fasteners mmepụta, elu ọgwụgwọ bụ a usoro na-apụghị izere ezere, ọtụtụ ndị na-ere ahịa na-ajụ banyere ịghasa fasteners, ụzọ nke elu ọgwụgwọ, ọkọlọtọ netwọk dị ka summarized ozi banyere elu nke ịghasa fasteners nkịtị nhazi ụzọ e nwere asatọ iche iche. nke ụdị, dị ka: nwa (acha anụnụ anụnụ), phosphating, hot dip zinc, dacromet, electric galvanized, chrome plating, nickel na zinc impregnation.The fastener ịghasa elu ọgwụgwọ bụ site a ụfọdụ usoro na-etolite a mkpuchi oyi akwa n'elu nke workpiece, ya nzube bụ ime ka elu nke ngwaahịa mara mma, mgbochi corrosion mmetụta.
Ụzọ ọgwụgwọ elu ala asatọ maka skru fastener:
1, ojii (acha anụnụ anụnụ)
A na-etinye ihe nkwụnye ndị a ga-eji na-eji oji mee ihe na tankị ngwọta (145 ± 5 ℃) nke sodium hydroxide (NaOH) na sodium nitrite (NaNO2) oxidant kpo oku na oxidation, n'elu nke metal fasteners mere oyi akwa nke magnetik Fe3O4 (Fe3O4). ) ihe nkiri, ọkpụrụkpụ bụ n'ozuzu 0.6 — 0.8μm nwa ma ọ bụ acha anụnụ anụnụ.Ma HG / 20613-2009 na HG / T20634-2009 ụkpụrụ maka fasteners eji na nrụgide arịa chọrọ acha anụnụ anụnụ nhazi.
2, Phosphate
Phosphating bụ usoro nke imepụta ihe nkiri mgbanwe kemịkalụ phosphate site na mmeghachi omume kemịkalụ na electrochemical.A na-akpọ ihe nkiri ntụgharị phosphate phosphating.Ebumnobi nke phosphating bụ inye nchebe maka ihe mgbakwasị ụkwụ ma gbochie ígwè ahụ ka ọ ghara imebi ya ruo n'ókè ụfọdụ.A na-eji ya dị ka primer tupu eserese iji meziwanye nrapado na nguzogide corrosion nke ihe nkiri agba;Enwere ike iji ya maka mbelata esemokwu na mmanu na usoro ọrụ oyi nke igwe.Ụkpụrụ maka nnukwu dayameta okpukpu abụọ - studs maka arịa nrụgide chọrọ phosphating.
3, Hot itinye galvanizing
Mkpokọta zinc na-ekpo ọkụ bụ imikpu onye otu nchara mgbe ewepu nchara n'ime ngwọta zinc gbazere na okpomọkụ dị elu na ihe dị ka 600 ℃, nke mere na elu nke onye ahụ nchara na-ejikọta ya na akwa zinc.Ọkpụrụkpụ nke akwa akwa zinc agaghị abụ ihe na-erughị 65μm maka efere dị mkpa na-erughị 5mm, na ọ bụghị ihe na-erughị 86μm maka nnukwu efere 5mm na n'elu.Ya mere, kpọọ nzube nke mgbochi corrosion.
4. Dacroll
DACROMET bụ ntụgharị DACROMET na ndebiri, DACROMET, nchara DACROMET, Dicron.Ọ bụ mkpuchi anticorrosive ọhụrụ nwere ntụ ntụ zinc, ntụ ntụ aluminom, chromic acid na mmiri deionized dị ka ihe ndị bụ isi.Enweghị nsogbu mwepu hydrogen, na nkwụsi ike-ebugo ibu dị ezigbo mma.Ọ bụrụ na echeghị na nchekwa gburugburu ebe obibi nke hexavalent chromium, ọ bụ n'ezie kasị adabara maka elu ike fasteners na elu anticorrosion chọrọ.
5, Igwe ọkụ eletrik
Electrogalvanizing, makwaara dị ka oyi galvanizing na ụlọ ọrụ, bụ usoro nke iji electrolysis na-etolite edo, ok na mma-jikọtara metal ma ọ bụ alloy deposition oyi akwa n'elu nke workpiece.E jiri ya tụnyere ọla ndị ọzọ, zinc dị ọnụ ala ma dị mfe ịkwanye igwe, electroplating na-eguzogide corrosion dị ọnụ ala, a na-ejikarị echebe akụkụ ígwè, karịsịa megide corrosion ikuku, ma jiri ya chọọ mma.Usoro ntinye ihe na-agụnye oghere oghere (ma ọ bụ kpọgidere plating), mpịakọta mpịakọta (nke kwesịrị ekwesị maka obere akụkụ), ihe mkpuchi na-acha anụnụ anụnụ, plating akpaka na ihe na-aga n'ihu (dabara waya, warara).
Electrogalvanizing bụ mkpuchi a na-ejikarị eme ihe maka ngwakọ azụmahịa.Ọ dị ọnụ ala ma dị mma karịa, ọ nwere ike ịbịa na oji ma ọ bụ akwụkwọ ndụ akwụkwọ ndụ ndị agha.Otú ọ dị, arụmọrụ ya anticorrosion bụ n'ozuzu, ya anticorrosion arụmọrụ bụ nke kasị ala na zinc plating ( mkpuchi) oyi akwa.General electrogalvanizing na-anọpụ iche nnu ịgba ule n'ime 72 awa, e nwekwara ojiji nke pụrụ iche sealant, na-eme na-anọpụ iche nnu ịgba ule ihe karịrị 200 awa, ma price bụ oké ọnụ, bụ 5 ~ 8 ugboro general galvanizing.
Ihe nkpuchi maka akụkụ nhazi bụ zinc na-acha ọcha na zinc na-acha ọcha, dịka bolts ọkwa azụmahịa 8.8.
6, Chrome plated
Chrome plating bụ tumadi ka mma elu ike ike, ịma mma, nchara mgbochi.Chromium plating nwere ezigbo nkwụsi ike kemịkalụ ma ọ naghị emeghachi omume na alkali, sulfide, nitric acid na ọtụtụ acid organic, mana ọ na-agbaze na hydrohalic acid (dị ka hydrochloric acid) na sulfuric acid dị ọkụ.Chromium dị elu karịa ọlaọcha na nickel n'ihi na ọ naghị agbanwe agba ma na-ejigide ihe ngosi ya ogologo oge mgbe ejiri ya.
7, nickel plating
Nickel plating bụ tumadi eyi-eguzogide, mgbochi corrosion, mgbochi nchara, n'ozuzu mkpa ọkpụrụkpụ nke usoro na-ekewa electroplating na chemical abụọ edemede.
8, Zinc impregnation
Ụkpụrụ nke teknụzụ zincizing ntụ ntụ bụ itinye onye na-ahụ maka zincizing na ígwè na akụkụ ígwè n'ime ọkụ na-ekpo ọkụ na ikpo ọkụ ruo ihe dị ka 400 ℃, na zinc atom ndị na-arụ ọrụ ga-abanye n'ime ígwè na ígwè si n'èzí gaa n'ime.N'otu oge ahụ, atom ígwè na-agbasa site n'ime ime, nke na-eme ka zinc-iron intermetallic compound, ma ọ bụ mkpuchi zinc, n'elu akụkụ ígwè.
Oge nzipu: Ọktoba 30-2021