Mwepụ ajari Aluminom ụlọ ọrụ & Mgbochi maka Ogologo Ndụ

Ndubata: Nchara na Aluminom Industrial? Ekwela ka corrosion cripple rụpụta arụmọrụ!

N'akụkụ dịka nrụpụta igwe, Aeropace, Ngwaọrụ kemịkalụ, na ụzọ ụgbọ oloko, Aluminom alloys aghọwo isi ihe n'ihi na ha dị arọ na ike dị elu. Agbanyeghị, iru mmiri okpomọkụ, nnu nnu, na mgbasa ozi acid-alkaline na gburugburu ụlọ ọrụ mmepụta ihe nwere ike imebi ihe nkiri oxide nwa afọ (5-10nm) n'elu aluminom, na-akpụ aluminom rụrụ arụ tumadi mejupụtara Al₂O₃・nH₂O na AlOOH..
Ihe ize ndụ nke nchara aluminom dị nnọọ njọ karịa ka ị nwere ike iche: Ọ bụghị nanị na-ebelata ike tensile nke components site 15%-30% mana nwekwara ike ịkpata ọdịda dịka mgbochi sistemu hydraulic na adịghị arụ ọrụ ọkụ, na-eduga n'oge ọdịda akụrụngwa maka mmezi na ọnụ ahịa ụlọ ọrụ na-abawanye.
Akụkọ a na-akọwa nkọwa 4 isi ulo oru aluminom teknụzụ mwepụ nchara na 5 ngwọta mgbochi nchara iji nyere gị aka n'ụzọ ziri ezi lebara okwu nchara aluminum n'ọnọdụ dị iche iche na ịgbatị ndụ ọrụ nke ihe aluminom site na karịa. 50%.

A. Industrial Aluminum Rust – Ghọta ihe ize ndụ mbụ, Họrọzie ngwọta ziri ezi

3 Isi ihe na-akpata ajari Aluminom ụlọ ọrụ (Zere Ndị a “Ọnyà ajari”)

Ọ bụghị otu ihe kpatara nchara aluminom na ọnọdụ mmepụta ihe, kama site na njikọta nke ọtụtụ ọnọdụ gburugburu ebe obibi.. Ịzere mbụ nwere ike ibelata ihe ize ndụ nke corrosion site na 80%:

• Electrochemical corrosion: Electrolytes dị ka Cl⁻ na SO₄²⁻ na ụlọ ọrụ kemịkalụ na-eme ka mmeghachi omume galvanic dị n'etiti mkpụrụ aluminom na ihe nkiri oxide.. Ihe emepụtara Al(Ooh)₃ dehydrates na-emepụta nchara aluminum rụrụ arụ, nke bụ isi ihe na-akpata nchara na ihe aluminom na akụrụngwa kemịkal.

• Nchegbu corrosion mgbawa (SCC): Maka ihe ndị dị n'okpuru nrụgide tensile (E.G., ugbo elu engine agụba, arịa ndị nrụgide), ihe nkiri oxide na-agbaji n'akụkụ ebe ịta ahụhụ, na aluminom substrate na-aga n'ihu na-emebi emebi, na-akpụ nchara transgranular aluminum.

• Oxidation dị elu: N'ihi ulo oru ọkụ na turbine components na-arụ ọrụ n'elu 200 ℃, ihe nkiri oxide nke obodo na-aghọ multi-layed. Igwe oyi akwa na-apụ apụ n'ihi ọdịiche dị na mgbasawanye ọkụ, na oyi akwa dị n'ime na-etolite oyi akwa oxide porous, nke na-emecha ghọọ nchara aluminum.

Nkewa ihe ize ndụ nke ajari Aluminom ụlọ ọrụ - Kedu ọkwa nke akụrụngwa gị na-adaba?

Ogo corrosion dị iche iche nwere mmetụta dị iche iche na akụrụngwa. Ịchọpụta ọkwa nke ọma bụ isi ihe na-ahọrọ ngwọta ọgwụgwọ ziri ezi:

Oke ajari	Ọnụego mkpuchi nchara	Mmetụta dị na akụrụngwa akụrụngwa	Ihe ize ndụ akụrụngwa (Ga-adị njikere!)	Oge ọgwụgwọ akwadoro
Dị nwayọọ	≤10%	Mbelata ike ≤5%	Enweghị ọdịda ozugbo, mana nlebanya chọrọ	N'ime 1 onwa
Na-agafeghị oke	10%-30%	Mbelata ike 5%-15%	Ọdịda akara, nkenke di iche iche, na-emetụta mmepụta	N'ime 7 ubochi
siri ike	≥30%	Mbelata ike ≥15%	Mgbaji n'usoro, usoro mkpọnwụ, ihe mberede nchekwa nwere ike	Ngwa ngwa

B.4 Core Industrial Aluminum Rust Removal Teknụzụ – Họrọ na Achọ maka Mwepụ nchara nke Ọma

Mechanical egweri - “Ngwọta ngwa ngwa” maka nchara dị nro ruo na-agafeghị oke (Ọnụ ala, Arụ ọrụ dị mfe)

Ihe Mkpesa: Aluminom nchara nchara na-agafeghị oke (mkpuchi ≤20%) na n'ibu akụkụ, ọkpọkọ mpụta, wdg., karịsịa adabara maka nlekọta na saịtị.

Ihe nka nka (Ọ dị mfe maka ndị mbido ka ha nweta Master):

• Nhọrọ Ngwá Ọrụ: Họrọ igwe ihe nkuku 750-1500W, dabara na 80-120 ntupu aluminum oxide egweri wiil (n'ihi na ike ike egweri wepụ nchara) na 320-400 ntupu wiil (maka ezi egweri na ịrụzi).

• Akụkụ igodo: Ọsọ ntụgharị 1800-3000r/min, egweri akụkụ 15-30 ° (iji zere ịcha mkpụrụ), ọnụego nri 50-100mm / s.

• Nzọụkwụ arụ ọrụ:

1. 1. Future: Jiri ikuku mkpakọ (0.6-0.8MPa) ịfụpụ uzuzu. Ọ bụrụ na mmetọ mmanụ karịrị 5mg/cm², tinye na a 5% Na₂CO₃ ngwọta (60℃) nke 10 nkeji iji belata.

1. 2. Ịrịcha ọkwa: Mbụ, mee ihe siri ike iji wepụ nchara siri ike, wee na-egweri nke ọma ruo mgbe ịdị nro dị elu ruru Ra ≤1.6μm.

1. 3. Mgbe ọgwụgwọ gasịrị: Jiri oghere wepụ ntụ ntụ aluminom (uzuzu uzuzu ≤10mg/m³), ma hichaa ntụ ntụ fọdụrụ na mmanya isopropyl.

Ntụaka ọnụ ahịa: Odika \(0.75-\)1.5 kwa square mita. Enweghị akụrụngwa ọkachamara achọrọ, na-eme ka ọ dị mma maka nhazi obere obere na ọkara.

Mwepụ ájá ájá - “Onye na-egbu egbu” maka oke ajari (Kwesịrị ekwesị maka nkwadebe tupu mkpuchi)

Ihe Mkpesa: Aluminom siri ike nchara (mkpuchi ≥30%) na tankị nchekwa, nnukwu ihe nhazi, wdg., ma ọ bụ pretreatment tupu mkpuchi.

Ihe nka nka (Ịrụ ọrụ dị elu na akpaaka):

• Nhọrọ abrasive: Jiri 0.5-1.0mm quartz ájá (ọnụ ala) maka oke nchara na-ewepụ, na 0.1-0.3mm aluminum oxide ájá (iji zere mmebi) maka nkenke components.

• Parameters: Mgbakọ ikuku 0.5-0.8MPa, anya ájá ájá 150-250mm, ịgba n'akuku 45°, ọsọ ọsọ 200-300mm / min.

• Ọkọlọtọ Ogo: Nweta ọkwa Sa2.5 (ọ dịghị anya aluminom nchara ma ọ bụ oxide ọnụ ọgụgụ, ihe ndị fọdụrụnụ ≤5%), elu roughness Ra 2.0-5.0μm (ka mma mkpuchi adhesion).

• Ntuziaka ịzenarị ọnyà: Jiri plọg rọba silicone mechie oghere na akara akara. A ghaghị imecha ọgwụgwọ mgbochi nchara n'ime 4 awa mgbe sandblasting (iji gbochie re-oxidation).

Ntụaka ọnụ ahịa: Odika \(2.25-\)3.75 kwa square mita, adabara nnukwu-ogbe, nnukwu ebe mkpochapụ nchara.

Mwepụ kemịkalụ - “Nhọrọ nke ọma” maka nhazi nhazi (2 Ụdị: Acid / Chelating)

Ihe Mkpesa: Nhazi nhazi nke obere ihe (E.G., eletrọnịkị okpomọkụ sinks, fasteners) ma ọ bụ aluminom nchara na oghere dị mgbagwoju anya.

a.1 Mwepụ nchara nchara (Ịrụ ọrụ dị elu, Ọnụ ala, Kwesịrị ekwesị maka ngwa nkịtị)

• Isi usoro (Oke oke): 10% HCl + 0.5% thiourea (inhibitor iji chebe mkpụrụ) + 0.2% sodium dodecylbenzene sulfonate (iji welie nchara mwepụ mmetụta).

• Usoro Usoro: Okpomọkụ 25-35 ℃, oge imikpu 20-40 nkeji, ọnụ ọgụgụ corrosion ≤0.5g/(m²・h).

• Ebe njikwa: Maka aluminom alloys nwere >2% Ku, mụbaa ịta ihe inhibitor ka 0.8%. Nwalee itinye uche Al³⁺ ọ bụla 10 nkeji; mejupụta ngwọta ọhụrụ ma ọ bụrụ na ọ gafere 15g/L.

b.2 Mwepụ nchara nchara (Corrosion dị ala, Kwesịrị ekwesị maka Ngwa nkenke)

• Usoro usoro: 8%-10% EDTA disodium + 3% disodium hydrogen phosphate + 0.5% triethanolamine (mp 9.0-10.0).

• Uru: Ọnụ ego corrosion elu ≤0.1g/m², flatness deviation mgbe nchara mwepụ ≤0.02mm, dabara adaba maka ụgbọ ala ọdịda ikuku na ihe mmetụta ziri ezi.

• Atụmatụ ọrụ: Jikwaa okpomọkụ na 40-50 ℃, oge imikpu 30-60 nkeji, ma kpochaa ya na mmiri deionized (conductivity ≤50μS / cm) emesia.

Teknụzụ dị elu - “Ihe ngwọta dị elu” maka Ngwa nkenke (Laser/Plasma)

Ihe Mkpesa: Ngwa ndị nwere nkenke nwere oke ziri ezi chọrọ na ikuku ikuku na semiconductor (E.G., agụba engine, mgbawa okpomọkụ sinks).

a.1 Laser Cleaning Technology

• Nhọrọ akụrụngwa: Pulsed Nd:YAG laser (ogologo 1064nm), ike 100-300W.

• Akụkụ igodo: Ugboro ugboro 20-50kHz, ọsọ nyocha 300-500mm / s, dayameta ntụpọ 0.2-0.5mm.

• Uru: Ọdịiche dị n'elu mgbe ewepụchara nchara Ra ≤0.8μm, Mpaghara okpomọkụ metụtara ≤50μm, enweghị mmebi n'ibu.

b.2 Nkà na ụzụ nhicha Plasma

• Isi Usoro: Argon plasma (ịdị ọcha 99.999%), ogo vacuum 10⁻³-10⁻ Pa, ike 150-300W, oge ọgwụgwọ 10-20 nkeji.

• Mmetụta: N'elu kọntaktị akụkụ ≤30° (mma mkpuchi adhesion), ihe fọdụrụ carbon ≤0.1%, adabara maka semiconductor aluminum substrates.

C. 5 Ngwọta Mgbochi Mgbochi Aluminom nke ụlọ ọrụ - Kwụsị nchara na isi iyi

Anodic oxidation - “Nhọrọ nke mbụ” maka Nchekwa Izugbe (Nguzogide nfe nnu siri ike)

Ihe Mkpesa: Ihe ndị dị n'ozuzu dị ka ọkpọkọ mmepụta ihe na akụkụ nhazi, karịsịa kwesịrị ekwesị maka gburugburu iru mmiri.

Usoro Nrụ Ọrụ Haziri:

• Future: Na-eweda ala (5% NaOH, 50℃, 10 nkeji) → Ịkpọ ihe (10% HNO₃, ụlọ okpomọkụ, 5 nkeji) → Na-asacha na mmiri deionized (conductivity ≤10μS / cm).

• Oke Oxidation: 18%-20% H₂SO₄, okpomọkụ 20-22 ℃, njupụta ugbu a 1.2-1.5A/dm², oge 30-40 nkeji (ọkpụrụkpụ ihe nkiri 15-20μm).

• Ọgwụgwọ akara: Tinye n'ime a 5% nickel acetate ngwọta (85℃, 20 nkeji), mmiri na-esi nri ọnwụ ≤30mg/dm² (iji hụ na arụmọrụ akara).

• Ndekọ arụmọrụ: Nguzogide ịgba nnu na-anọpụ iche ≥1000 awa (Gb / t 10125), adabara maka ime ụlọ na n'èzí nchebe izugbe.

mkpuchi ntụ ntụ - “Ọpụrụiche” maka Mpụga/Mgbochi rụrụ arụ (Ezigbo Nguzogide ihu igwe)

Ihe Mkpesa: Ihe mkpuchi akụrụngwa n'èzí, ụgbọ okporo ígwè transit aluminum ihe, na ihe mejupụtara ụlọ ọrụ kemịkalụ.

Isi Usoro:

• Nhọrọ ntụ ntụ: Polyester-epoxy ntụ ntụ (Tg ≥50℃, ike mmetụta ≥50kg・cm, mgbochi mmetụta na mgbochi peeling).

• Ihe nfesa: Electrostatic voltaji 60-80kV, uzuzu eruba ọnụego 50-80g / min, atomization mgbali 0.3-0.5MPa.

• Ọnọdụ ọgwụgwọ: Ime na 180-200 ℃ maka 20-25 nkeji (crosslinking ogo ≥90%).

• Isi Uru: Mkpuchi ọkpụrụkpụ 60-80μm, adhesion (cross-cut ule) ≤Ọkwa 1, nnu ịgba iguzogide ≥2000 awa, mgbochi ultraviolet ịka nká.

Ngafe na-enweghị Chromium - “Nhọrọ ọhụrụ” maka ọgwụgwọ Eco-Friendly Pretreatment (Dochie Chromate Omenala)

Ihe Mkpesa: Ihe aluminom maka igwe nri na akụrụngwa ọgwụ (na elu gburugburu ebe obibi chọrọ), ma ọ bụ pretreatment tupu mkpuchi.

Isi usoro:

• Usoro Ngwọta Passivation: 5%-8% hydrofluozironic acid + 2% zirconium nitrate, mp 3.0-4.0, okpomọkụ 25-30 ℃.

• Nzọụkwụ arụ ọrụ: Sook maka 5-8 nkeji iji mepụta ihe nkiri ngafe 50-100nm.

• Emume ngosi: Nguzogide ịgba nnu na-anọpụ iche ≥240 awa, mkpuchi mkpuchi mma site na 30%, kwekọrọ na ụkpụrụ gburugburu ebe obibi RoHS.

Sistemụ nlekọta mgbe niile - “Igodo” Ịgbatị ndụ Nchedo (Ụdị ihe dị iche iche)

Usoro nlekọta na-adịgasị iche iche n'etiti akụkụ ụlọ ọrụ dị iche iche. Nlekọta anya na-abawanye ọnụ ahịa; atụmatụ ziri ezi na-eme ka ọ dị mma:

Ụdị akụrụngwa	Usoro nyocha	Ọdịnaya Nlekọta	Ụzọ nchọpụta (Dị Mfe ma dị mfe iji rụọ ọrụ)
Akụrụngwa Aluminom	1 onwa	Elu corrosion, mkpuchi iguzosi ike n'ezi ihe	Nyocha anya + mkpuchi ọkpụrụkpụ nlele (tụọ ọkpụrụkpụ)
Aeropace mejupụtara	500 awa ụgbọ elu	Nchegbu corrosion cracking, omimi miri emi	Nnwale Eddy ugbu a + ule ntinye (ịlele mgbawa)
Ụgbọ okporo ígwè Aluminom	3 otutu onwa	Nzuzu ịgba nnu, weld iguzosi ike n'ezi ihe	Nnwale Ultrasonic + akwụkwọ nyocha ịgba nnu nnu (iji tụọ corrosion)
General Mechanical Aluminom	2 otutu onwa	Mmebi ihe nkiri oxide, oghere corrosion	Nyocha anya + mmanya na-egbu egbu (ịlele adhesion)

Njikwa gburugburu ebe obibi - Belata “Isi mmalite na-akpalite” nke nchara (Ọnụ ala, Nlaghachi dị elu)

• Njikwa iru mmiri: Jikwaa iru mmiri ≤65% n'ụlọ ọrụ ụlọ ọrụ mmepụta ihe. Kwadebe ihe na-ekpochapụ ikuku n'ebe dị ọkụ na nke iru mmiri (igirigi ebe ≤15℃) iji zere ikuku condensation.

• Njikwa Ọkara na-emebi emebi: Control Cl⁻ itinye uche ≤50mg/m³, ma jiri carbon adsorption arụ ọrụ + ịgba absorption usoro (dị mkpa maka ụlọ ọrụ kemịkalụ).

• Nchekwa Corrosion Galvanic: Wụnye gaskets mkpuchi polyimide na ebe njikọ aluminom-steel. Dozie mkpuchi mebiri emebi na agba dabara n'ime 24 keolechi (iji gbochie mgbasawanye).

D.FAQ Banyere Ọgwụgwọ Aluminom nchara nchara - Azịza nye Top Gị 10 Nchegbu

1. Q: Ugboro ole ka ọ dị mkpa ka etinyere mgbochi nchara ọzọ mgbe ọgwụgwọ alumini nke ụlọ ọrụ mmepụta ihe gasịrị?

A: N'ebe ndị nkịtị (E.G., ụlọ ọrụ igwe), nke ọ bụla 1-2 afọ; n'ebe ndị na-emebi emebi (E.G., chemical osisi, mpaghara osimiri), nke ọ bụla 6-12 otutu onwa; na gburugburu mkpughe n'èzí, a na-atụ aro nyocha ọ bụla 6 otutu onwa.

2. Q: Enwere ike iji sandblasting maka nchara na ihe mejupụtara alloy aluminum ziri ezi (E.G., sensọ)?

A: A naghị atụ aro ya! Mgbawa aja na-emebi nkenke. Ultrasonic nhicha (25-40khz) ma ọ bụ laser nhicha (Ra ≤0.8μm) akwadoro.

3. Q: Mwepụ nchara acidic ga-emebi mkpụrụ aluminom?

A: Mba, ọ bụrụ na agbakwunyere inhibitor! Ndị na-egbochi ihe dịka thiourea na urotropine nwere ike ijikwa ọnụ ọgụgụ corrosion n'ime 0.5g/(m²・h).

4. Q: Kedu nke nwere mmetụta mgbochi nchara ka mma: passivation na-enweghị chromium ma ọ bụ oxidation anodic?

A: Ihe nkiri oxidation nke anodic dị oke (15-20μm) na nnu na-eguzogide ≥1000 awa; ihe nkiri passivation na-enweghị chromium dị gịrịgịrị (50-100nm), adabara maka pretreatment na mkpa ka eji mkpuchi.

5. Q: Otu esi atụfu ihe mkpofu aluminom ụlọ ọrụ mmepụta ihe? Enwere ike ịmegharị ya?

A: Okwukwe, enwere ike megharịa ya! Chịkọta ma nyefee ya n'aka ụlọ ọrụ ndị ọkachamara maka ịgbaze na imegharị ihe (Ọnụego mgbake ≥90%). Ekwesịrị ikpochapụ akụkụ ndị anaghị emegharị ọzọ dịka iwu ụlọ ọrụ siri ike siri dị.

6. Q: Kedu ihe ngwọta mgbochi nchara kwesịrị ekwesị maka ihe ndị aluminom na gburugburu okpomọkụ dị elu (E.G., ụlọ ọrụ ọkụ)?

A: Ihe mkpuchi nke seramiiki (okpomọkụ eguzogide ≥800 ℃) ma ọ bụ oke okpomọkụ anodic oxidation (ọkpụrụkpụ ihe nkiri 20-30μm, okpomọkụ eguzogide 300 ℃) akwadoro.

7. Q: Kedu teknụzụ kacha arụ ọrụ nke ọma maka ọgwụgwọ nchara aluminom?

A: Mwepụ nchara kemịkalụ acid bụ nke kacha arụ ọrụ nke ọma, ike ịhazi narị narị obere ihe kwa elekere, adabara fasteners, okpomoku okpomoku, wdg.

8. Q: Kedu akụrụngwa nchedo ndị ọrụ chọrọ n'oge mwepụ nchara?

A: Maka iwepụ nchara kemịkal: uwe nchebe na-eguzogide acid (na-eguzogide ọgwụ ≥30% HCl) + enyo enyo; maka iwepụ nchara anụ ahụ: N95 mkpuchi uzuzu + mkpọtụ na-akagbu ntị ntị.

9. Q: Aluminom alloy welds na-adịkarị mfe nchara - otu esi egbochi nke a?

A: Mgbe ịgbado ọkụ, wepụ ihe nkiri oxide na 10% nitric acid pickling, wee mee passivation na-enweghị chromium, na n'ikpeazụ tinye weld-kpọmkwem mgbochi nchara (E.G., epoxy zinc nwere agba agba).

10. Q: Na oke ọnụ ahịa, Kedu usoro a ga-ahọrọ maka nchara aluminom dị nro na-agafeghị oke?

A: Mee ka igwe igwe egweri ụzọ (\(0.75-\)1.5 kwa square mita), sochiri citric acid ultrasonic ihicha (adabara oghere nchara) - ọnụ ala ma dị mfe iji rụọ ọrụ.

Mmechi: “Ntuziaka nhọrọ” maka Ọgwụgwọ Aluminom nchara nchara (Ngwa ngwa ndakọrịta nke Ngwọta)

Oke ajari	Ụdị akụrụngwa	Teknụzụ akwadoro	Uru	Ida onu (kwa square mita)
Dị nwayọọ	Akụkụ Mechanical General	Mechanical egweri	Arụ ọrụ dị mfe, enweghị akụrụngwa ọkachamara achọrọ	\(0.75-\)1.5
Na-agafeghị oke	Ọkpọkpọ, Okpomoku okpomoku	Ultrasonic nhicha	Enweghị mmebi, adabara oghere nchara	\(1.5-\)2.25
siri ike	Achekwara nchekwa, Ngwa nhazi	Mwepụ ájá ájá	Mwepụ nchara nke ọma, adabara tupu mkpuchi	\(2.25-\)3.75
Ngwa nkenke	Akụkụ ikuku	Laser/Plasma nhicha	Elu nkenke, enweghị mmebi n'ibu	\(7.5-\)15
Obere akụrụngwa	Ihe nkwụnye, Akụkụ eletrọnịkị	Mwepụ nchara nchara acid	Ịrụ ọrụ dị elu, ọnụ ala	\(1.2-\)1.8