Kedu ihe mkpuchi mkpuchi chromate/Alodine/Chem?
Oge ịgụ ihe nkeji 3
Okwu mmalite
Ihe mkpuchi ngbanwe nke Chromate makwaara dị ka mkpuchi alodine ma ọ bụ ihe nkiri Chem, ọ bụ ụdị mkpuchi mkpuchi a na-eji agafe aluminum, n'ọnọdụ ụfọdụ ígwè, zinc, cadmium, ọla kọpa, ọlaọcha, titanium, magnesium, na tin alloys dịkwa.Usoro ngafe na-emepụta ihe nkiri nchebe n'elu ihe onwunwe, nke na-echebe ya pụọ na corrosion.
N'adịghị ka anodizing, mkpuchi ngbanwe chromate bụ mkpuchi mgbanwe kemịkalụ.Na mkpuchi mgbanwe kemịkalụ, mmeghachi omume kemịkalụ na-eme n'elu igwe ahụ, mmeghachi omume kemịkal a na-agbanwekwa elu igwe ka ọ bụrụ oyi akwa nchekwa.
Mkpuchi ntụgharị n'onwe ya anaghị eduzi ọkụ eletrik, mgbe etinyere ya dịka klaasị 3 nke ọkọlọtọ MIL-DTL-5541.Ihe mkpuchi mgbanwe kemịkalụ 3 klaasị na-echebe megide corrosion ebe achọrọ nguzogide eletrik dị ala.N'okwu a, mkpuchi n'onwe ya adịghịkwa arụ ọrụ, ma n'ihi na mkpuchi ntụgharị na-adịwanye njọ, ọ na-enye ụfọdụ ọkwa eletriki eletrik.Ị nwere ike. kpọtụrụ ndị injinia anyịmaka ozi ndị ọzọ na nke a.
Ihe mkpuchi chromate bụ mkpuchi a na-ejikarị eme ihe maka nchebe corrosion nke Aluminom na Aluminom alloys na-ebelata oxidation elu.A na-ejikarị ya eme iheuwe mkpuchi maka agba ma ọ bụ ngwa nrapadon'ihi na mma bonding Njirimara ọ na-enye.
A na-etinyekarị mkpuchi ngbanwe chromate na ihe ndị dị ka skru, ngwaike na ngwaọrụ.Ha na-enyekarị ọla ọcha ma ọ bụ isi awọ n'ụdị pụrụ iche.
Ụdị/ụkpụrụ na nkọwapụta
| MIL-C-5541E nkọwapụta | ||
| Klas chromate | • Klas 1A- (Yellow) Maka nchebe kachasị megide corrosion, na-ese ma ọ bụ na-eseghị ya. • Klas 3- (O doro anya ma ọ bụ odo) Maka nchebe megide corrosion ebe a chọrọ obere nguzogide eletriki. | |
| MIL-DTL-5541F/MIL-DTL-81706B nkọwapụta | ||
| Klas chromate* | • Klas 1A- (Yellow) Maka nchebe kachasị megide corrosion, na-ese ma ọ bụ na-eseghị ya. • Klas 3- (O doro anya ma ọ bụ odo) Maka nchebe megide corrosion ebe a chọrọ obere nguzogide eletriki. | * Ụdị I- Ngwakọta nwere chromium hexavalent;Ụdị II- Ihe mejupụtara na-enweghị Chromium hexavalent |
| ASTM B 449-93 (2004) nkọwapụta | ||
| Klas chromate | • Klas 1- Yellow to Brown, Kachasị corrosion eguzogide na-ejikarị emecha ikpeazụ • Klas 2 - enweghị agba na-acha odo odo, nguzogide corrosion na-adịchaghị mma, ejiri ya dị ka isi agba na maka njikọta rọba • Klas 3- enweghị agba, ihe ịchọ mma, obere nguzogide corrosion, obere nguzogide kọntaktị eletrik • Klas 4- Ìhè akwụkwọ ndụ akwụkwọ ndụ na-acha akwụkwọ ndụ akwụkwọ ndụ, Nguzogide corrosion na-adịchaghị mma, nke ejiri ya mee ihe dị ka agba agba na maka njikọta na roba (anaghị eme ya na AST) | |
| Nguzogide ọkụ eletrik (Mkpuchi klaasị 3) | <5,000 micro ohms kwa square inch ka etinyere ya 10,000 micro ohms kwa square inch ka awa 168 nke ịgbasa nnu gachara | |
| Uru mkpuchi mkpuchi mgbanwe Chromate | Ihe ndabere maka agba, nrapado, na mkpuchi ntụ ntụ Nguzogide corrosion Ọ dị mfe imezi Mgbanwe Nguzogide Eletriki dị ala Nrụpụta kacha nta | |
Mkpuchi Ntugharị Chromate nwere ọtụtụ uru
Na mgbakwunye na nkwalite nchebe corrosion, enwere ọtụtụ uru bara uru iji mkpuchi ihe nkiri chem gụnyere:
- Ezigbo primer iji nyere aka agba, nrapado na akwa mkpuchi organic ndị ọzọ na-agbaso
- Gbochie mkpisi aka nke ọla dị nro
- Ngwa ngwa ngwa dị mfe site na imi, fesa ma ọ bụ ahịhịa
- Nzọụkwụ ole na ole karịa ọtụtụ usoro kemịkalụ wee bụrụ nke akụ na ụba na ọnụ ahịa
- Nye njikọ eletrik a pụrụ ịdabere na ya n'etiti akụkụ
- Mkpuchi dị nro, ọ fọrọ nke nta ka ọ bụrụ nke a na-apụghị ịgụta ọnụ, yabụ anaghị agbanwe akụkụ akụkụ
Ọ bụ ezie na a na-ejikọta ya na mkpuchi aluminum, a pụkwara itinye mkpuchi mkpuchi chromate na cadmium, ọla kọpa, magnesium, ọlaọcha, titanium na zinc.
Kedu ụlọ ọrụ nwere ike irite uru site na iji mkpuchi ihe nkiri kemịkal?
- Automotive: Heat sinks, Ụgbọ ala wiil
- Aerospace: Ụgbọ elu ụgbọ elu, akụkụ na torsion struts, Shock absorbers, ọdịda gia, akụkụ nke ụgbọ elu akara usoro (na rudder usoro, nku òkè, wdg)
- Ụlọ & Nhazi
- Eletriki
- Mmiri mmiri
- Ndị agha & nchekwa
- Imepụta
- Egwuregwu & Ngwaahịa
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Oge nzipu: Eprel-18-2022