Yuav ua li cas nrog cov pob dub ntawm qhov chaw ntawm aluminium ntawv ci?

Ua rau ntawm cov pob dub ntawm cov ntawv ci txhuas yog qhov nyuaj. Chaw nyob lawv los ntawm kev txheeb xyuas thawj hom, tom qab ntawd siv cov phiaj xwm daws teeb meem, nrog rau kev tiv thaiv. Hauv qab no yog ib txoj kev npaj kho mob raws li scenario:

1. Ua ntej, Txheeb xyuas Hom Dub Spot (Kev Ntsuam Xyuas Tus Kheej Ceev)

2. Lub hom phiaj kev kho mob los ntawm hom

2.1. Roj / Roj Coking Spots (Kev tsim khoom / kev lag luam)

• Lub cev so: Siv ib daim ntaub uas tsis muaj lint-dawb nrog anhydrous ethanol, isopropanol, los yog ib tug tshwj xeeb aluminium foil cleaner. So maj mam raws qhov kev taw qhia dov kom tsis txhob khawb.
• Cov txheej txheem ntxuav kom zoo:
  • Siv kev tu ntau theem: Alkaline ntxuav → Dej yaug → Acid ntxuav → Ntshiab dej yaug. Ultrasonic kev pab yuav txhim khu kev tu.
  • Qhuav tam sim ntawd nrog cua kub ntawm 80-100 ° C los tiv thaiv cov dej seem thiab rov oxidation.
• Rolling Oil Management:
  • Siv cov ntxaij lim dej nrog ≤5µm precision thiab hloov tsis tu ncua.
  • Tswj cov roj tshauv cov ntsiab lus rau <0.01% tiv thaiv roj degradation.

2.2. Oxidation / Corrosion Spots (Yam muaj hauj lwm & Kev Siv Hauv Tsev)

• Lub teeb Oxidation: So nrog ib daim ntaub mos dipped rau hauv 5-10% dawb vinegar los yog citric acid tov. Yaug nrog dej thiab qhuav tam sim ntawd.
• Nruab nrab Corrosion: Siv cov phosphoric-nitric acid sib tov (E.G., 85% H₃PO₄ + 10% HNO ₃ + 5% Dai) rau luv polishing (≤ 30 vib nas this), tom qab ntawd los ntawm kev yaug kom huv si thiab passivation.
• Corrosion hnyav: Yog hais tias me ntsis nkag mus rau lub substrate los yog ua rau flaking, pov tseg cov khoom. Tsis txhob rov qab siv dua kom tsis txhob muaj txhuas tsiv teb tsaws thiab kev nyab xeeb.

2.3. Impurity/Aluminium Dust Spots (Txheej txheem ntau lawm)

• Tshuab tshuab online: Nruab cov cua tshuab cua tshuab siab (0.4-0.6 MPa) ntawm lub rolling mill tawm kom tshem tawm cov plua plav saum npoo tam sim ntawd.
• Filtration Upgrade: Siv qhov sib xyaw ua ke tob txaj pom + phaj filtrationnyob rau hauv casting / dov txheej txheem los tswj cov khoom impurities tuaj.
• Cov cuab yeej tu: Ntxuav lub zeb, coj rollers, thiab tso pa tawm kom zoo txhua lub lim tiam kom tsis txhob muaj plua plav rov txuas ntxiv.

2.4. Tsev Neeg Ntawv Nyiaj / Thawv Spots (Khoom noj khoom haus sib cuag Scenario)

• Khoom noj khoom haus: Soak hauv dej sov nrog nruab nrab detergent rau 5-10 feeb, maj mam txhuam, yaug, thiab cua qhuav.
• Oxidation me ntsis: So nrog dawb vinegar thiab qhuav. Qhov no tsis cuam tshuam rau kev siv sijhawm luv.
• Pwm/Severe Blackening: Muab pov tseg tam sim ntawd. Tsis txhob siv rau kev sib cuag zaub mov vim muaj kev phom sij rau kev noj qab haus huv.

3. Kev Tiv Thaiv Kev Tiv Thaiv

3.1. Production-Side Control

• Tswj Tshuag: Khaws Fe <0.15% thiab Si <0.4% kom txo tau cov nag lossis daus intermetallic.
• Txheej txheem optimization: Tswj annealing kub (450-470°C) tiv thaiv cov roj coking thiab oxidation ntau dhau.
• Environment Management: Khaws lub rooj cob qhia cov av noo hauv qab no 60% nrog cov plua plav thiab noo noo tswj kom zoo.

3.2. Cov kev coj ua-sab

• Tsis txhob sib cuag nrog cov kua qaub, alkalis, ntsev, los yog cov khoom noj muaj kua qaub/alkaline.
• Ntxuav thiab qhuav kom huv si tom qab siv. Khaws ntim rau hauv qhov chaw qhuav.

4. Cov Lus Cim Tseem Ceeb

• Hauv kev lag luam tshuaj ntxuav, siv cov cuab yeej tiv thaiv tus kheej (PPE) thiab kho cov dej khib nyiab raws li kev cai ib puag ncig.
• Rau zaub mov-hu rau aluminium ntawv ci, tsis txhob muaj zog acids/alkalis. Nyiam kev ntxuav lub cev lossis cov kua qaub me me (E.G., dawb vinegar).
• Yog tias cov pob dub tsis tuaj yeem raug tshem tawm lossis ua rau muaj kev puas tsuaj, khawb cov khoom kom zoo thiab kev nyab xeeb.

Ua raws li cov txheej txheem ntawm “Txheeb xyuas hom → Thov Kev Kho Mob → Siv Kev Tiv Thaiv Kab Mob”zoo tswj aluminium foil black spots, ua kom zoo, kev xyuas xim, thiab efficiency.