Kodi nkhonya imatha bwanji kukana 3003 Zovala za aluminium zosefedwa ndi zotsimikizika pakukonzanso?

Eco-a. Chiyambi: Zosavuta Zofuna Zotayidwa 3003 Mabokosi a Aluminium Foil Chakudya chamasana

Otukwana 3003 Mabokosi a aluminiyamu opangidwa ndi nkhomaliro amadya nthawi zambiri pazakudya zotengedwa ndi zokonzedwa, chifukwa cha recyclability awo, kukana kutentha kwambiri (>200°C), ndi formability wabwino (2024 kukula kwa msika >8 biliyoni RMB).

Poyamba, kupatulira kopepuka kwawonekera ngati njira yofunika kwambiri yochepetsera mtengo komanso kukhazikika. Kupatulira zojambula zawo za aluminiyamu kuchokera ku 0.08-0.10mm mpaka pansi pa 0.07mm kumadula zinthu zomwe zimagwiritsidwa ntchito ndi 12%-15%, amatsitsa mtengo pa unit 8%-10%, ndipo amachepetsa kugwiritsidwa ntchito kwa aluminiyamu-kugwirizana ndi zolinga zachilengedwe zamakampani.

Eco-b. Puncture Resistance Challenge Pambuyo Kupatulira

Kupatulira mpaka pansi pa 0.07mm kumachepetsa kwambiri kukana kwa nkhonya kwa kutaya 3003 zitsulo za aluminiyumu nkhomaliro mabokosi, kupanga kusiyana kwakukulu kwa magwiridwe antchito.

Mwachindunji, pamene mukugwira zosakaniza za mafupa (E.g., nthiti zosiya) kapena zakudya zopanda pake (E.g., shirimpi), nsonga zakuthwa za zinthu zimenezi zimaboola mosavuta chojambula chopyapyalacho. Deta yamakampani ikuwonetsa kuti izi zimakulitsa kuchuluka kwa kutayikira kuchokera pakusawerengeka 0.5% (kwa 0.08mm zojambulazo) mpaka 5% -8% -mlingo womwe umalephera kukwaniritsa zomwe ogula amayembekezera komanso mtundu.

Eco-c. Core Factor: Ulalo wa Microstructure-Mechanical Property Link

Mwachika, kukana nkhonya kumadalira mphamvu ziwiri zazikulu za zojambulazo za aluminiyamu: “kukana deformation m'deralo” ndi “mphamvu mayamwidwe mphamvu.” Zonsezi zimatsimikiziridwa mwachindunji ndi zojambulazo za microstructure (kukula kwambewu, Kugawa kwa gawo lachiwiri la Al₆Mn) ndi chifukwa makina katundu (mphamvu, mlengalenga, kuuma).

Chifukwa chake, njira ya annealing - yomwe imayang'anira microstructure mwa kuwongolera kristalo ndi mpweya wa gawo lachiwiri - imakhala yofunika kwambiri pakuwongolera kupepuka komanso kukana kuphulika kwa mabokosi awa.. Popanda annealing yeniyeni, ngakhale woonda 3003 zojambulazo sizingakwaniritse zofunikira zautumiki.

Eco-d. Udindo wa Microstructure mu Kukaniza kwa Puncture

Za zotayidwa 3003 aluminium zojambulazo nkhomaliro mabokosi, mawonekedwe a microstructure 3003 zitsulo za aluminiyumu (alloy Al-Mn ndi 1.0%-1.5% Mn) kulamula mwachindunji kukana puncture-ndi mbali ziwiri zazikulu zomwe zimalamulira ubalewu:

(A) Maonekedwe Akukula Kwambewu

Choyamba, kukula kwa tirigu kumakhudza kwambiri mphamvu komanso kulimba:

• Mbewu zabwino kwambiri (<3μm): Chojambulacho chimasonyeza kuuma kwakukulu (HV>60) koma kutalika kwake (<8%). Panthawi ya puncture, izi zimabweretsa kuwonongeka kwa brittle, kukulitsa kwambiri chiwopsezo cha kutayikira.

• Mbewu zolimba kwambiri (>10μm): Mphamvu imatsika pansi pa 130MPa, kupangitsa kupindika kwa pulasitiki kochulukirapo komwe kumabweretsa “kuwonongeka kolowera” ku bokosi.

• Mulingo woyenera kwambiri: 5-8μm. Izi zimapereka mphamvu zolimba za 140-150MPa komanso 10%-12% elongation - ndendende zomwe zimafunikira pakuchita bwino kwa bokosi la nkhomaliro.

(B) Al₆Mn Second-Phase Effect

Wachiwiri, morphology ndi kugawa kwa Al₆Mn (gawo loyamba lachiwiri mu 3003 zojambulazo) - kulamulidwa ndi annealing - kumakhudzanso kukana kuphulika:

• Dziko lozizira: Al₆Mn ilipo ngati yankho lolimba kwambiri, kuchititsa kuuma kwambiri kwa ntchito. Elongation imagwera pansi 6%, zomwe zimapangitsa kuti zisawonongeke bwino.

• Kusakwanira annealing (<280°C): Al₆Mn imayenda ngati mabwalo abwino (<0.5μm), Koma kukwanira kokwanira kumachepetsa kusintha kwa mphamvu.

• Kuthana Kwambiri (>350°C): Al₆n Srearns mu Flakes (>2μm), Kuchita ngati kupsinjika kwa zovuta. Izi zimadula mitengo yopumira 20%-30%.

Eco-e. Makina Ogwiritsa Ntchito

Kuonetsetsa kuti odalirika odalirika 3003 aluminium zojambula zowonda kwambiri kuposa 0.07mm, Makina Othandizira Derance ayenera kuthandizidwa - aliyense omwe amathandizira mwapadera ndi kuthekera kwa nkhomaliro ya bokosi la nkhomaliro kuti mupewe kuboola:

Makina ochitira makina	Kulikonse	Kupereka Kupita Kumanja Bokosi Lamanja Kukaniza
Kulimba kwamakokedwe (MPa)	140-150	Imakana kutambasula kwanuko, kuteteza bokosi deformation
Zokolola Mphamvu (MPa)	110-120	Imawonjezera kukana kwamphamvu koyambirira
Elongation (%, L0 = 50mm)	10%-12	Amamwa puncture mphamvu (>3J), kuchepetsa kutayikira
Vickers Kuuma (HV)	50-55	Amalinganiza kuuma ndi kulimba, kupewa brittle fracture

Poyamba, kupitirira malirewa kumalepheretsa ntchito. Mwachitsanzo, mayesero amasonyeza kuti pamene elongation akutsikira kuchokera 10% ku 7%, lunch box leakage rate ikukwera kuchokera 1.2% kufika pa 4.5%—kuwonjezeka kanayi.

Eco-f. Zovuta Zapakatikati Zopatulira Kufikira Pansi pa 0.07mm

Kupatulira 3003 zojambulazo za aluminiyamu mpaka pansi pa 0.07mm zimabweretsa zovuta zazikulu zitatu pakupanga annealing, zonse zokhazikika mu “makulidwe zotsatira” za zofolera zopyapyala—zovutazi zimalepheretsa kupanga zinthu zambiri komanso kusasinthasintha kwa magwiridwe antchito:

(A) Annealing Uniformity Nkhani

Choyamba, zojambulazo woonda (<0.07mm) amavutika ndi kutentha kosiyanasiyana m'ng'anjo zachikhalidwe zodzigudubuza:

• Malo olumikizana ndi odzigudubuza amatentha mpaka 5 ° C kuposa malo omwe simumalumikizana nawo, kupangitsa kusiyana kwa 4-6μm mu kukula kwambewu (vs. kulolerana kwabwinobwino kwa ≤2μm). Izi zimabweretsa kusinthasintha kwa ± 15% pakukana kukaniza.

• Chojambula chopyapyala chilinso ndi 12.5% mphamvu yotsika kutentha kuposa 0.08mm zojambulazo, kuonjezera chiwopsezo chowotcha mopitilira muyeso - zomwe zimakwiyitsa Al₆Mn ndikuchepetsa magwiridwe antchito.

(B) Kusamvana kwa Magwiridwe Antchito

Wachiwiri, kupeza mphamvu pakati pa mphamvu ndi kutalika kumakhala vuto:

• Kutalikitsa annealing kupitirira 10h kuti kulimbikitsa mphamvu coarsens njere >10μm, kuchepetsa elongation apa 8% ndi kuchepetsa kuyamwa mphamvu.

• Kuchepetsa kutentha kwa annealing pansi pa 280 ° C kuti musunge kutalika kumachepetsa mphamvu <130MPa, kupanga zojambulazo kukhala zosavuta kulowa.

(C) Kupanga-Kuthetsa Mikangano

Wachitatu, ndondomeko ya stamping (zofunika kupanga nkhomaliro bokosi, ndi chojambula chakuya cha 5-8mm) kulimbana ndi zotsatira za kupsinjika:

• Kusakwanira kwa annealing kumapangitsa kuti ntchito yotsalira ikhale yovuta, kuchititsa kuti zojambulazo zing'ambike panthawi ya sitampu-kutsika kupanga ziyeneretso pansipa 85%.

• Kuchulukirachulukira kumadzetsa mbewu zolimba, zomwe zimayambitsa “khosi” pakupanga. Izi zimabweretsa makulidwe osalingana a khoma (>0.01mm) ndi kufooka kolimba kwa nkhonya pa malo owonda.

Eco-g. Njira Yowonjezera Yamagawo Atatu

Kuthana ndi zovuta izi ndikukwaniritsa zofunikira zolimbana ndi zowonda 3003 zitsulo za aluminiyumu, njira yowongoleredwa ya magawo atatu idapangidwa - kulunjika mawonekedwe abwino a microstructure “5-8μm mbewu + 0.5-1μm yozungulira Al₆Mn” kupyolera mu ulamuliro wolondola:

(A) Gawo 1: Kutenthetsa (250-280°C, 1-2h)

Gawo 1 imayang'ana pa kutentha koyendetsedwa kuti zisasinthe msanga:

• Cholinga: Kutentha pang'onopang'ono 3003 foil's recrystallization kutentha (~250°C) imalepheretsa mvula ya Al₆Mn, zomwe zingasokoneze mapangidwe a microstructure.

• Kuwongolera kofunikira: Kutentha kwa 5-8°C/mphindi kumatsimikizira kutentha kwa ≤2°C pa makulidwe a chojambulacho—chofunika kwambiri kuti chifanane.

• Zotsatira: Ma atomu amayamba kufalikira, kuchepetsa ntchito ndikuwonjezera kuchuluka kwa shuga 6%-7%.

(B) Gawo 2: Kugwira Annealing (300-320°C, 3-5h)

Kusunthira ku Stage 2, cholingacho chimasinthira ku kulinganiza recrystallization ndi mpweya wagawo lachiwiri:

• Zolinga za kutentha: 300-320°C ndiye “recrystallization - mpweya bwino zone”:

• • Recrystallization: Njere zopunduka zoziziritsa kuzizira zimasandulika kukhala njere zofanana (5-8μm).

• • Al₆Mn mvula: Zabwino zozungulira particles (0.5-1μm) mawonekedwe, kuyenga njere kudzera pakupinira ndi kulimbitsa mwa kubalalitsidwa.

• Kusintha nthawi: 3H kwa zojambulazo za 0.06mm ndi 5h za zojambulazo za 0.07mm-kuonetsetsa 80%-85% Al₆Mn mvula (kutsimikiziridwa kudzera ku DSC).

• Zotsatira zamakina: 145-150Mphamvu ya MPa, 11%-12% mlengalenga, ndi HV 52-55—kukwaniritsa ndendende malire ofunikira.

(C) Gawo 3: Kuzizira Kwapakatikati (10-15°C/mphindi kupita ku RT)

Gawo 3 amamaliza ndondomekoyi pokonza microstructure yabwino kwambiri:

• Kusankha kwamitengo:

• • Kuzizira kwambiri kuposa 20°C/mphindi kumalepheretsa mvula ya Al₆Mn, kumayambitsa kuuma kwa zaka ndi 1-2% kutaya elongation.

• • Kuzizira pang'onopang'ono kuposa 5°C/mphindi kumatenthetsa Al₆Mn ku >1μm, kupanga magwero opsinjika.

• Ubwino: 10-15°C/mphindi zoziziritsa zokhoma mu microstructure yomwe mukufuna, kusunga kusinthasintha kwa kukana kwa puncture ≤5%.

• Gawo lowonjezera: Kulowetsa nayitrogeni panthawi yozizirira kumalepheretsa oxidation (filimu okusayidi ≤0.5μm), kupewa kusindikiza nkhani pakupanga.

ECO-H. Chitsimikizo Choyesera

Kuti atsimikizire mwachidziwitso njira yabwino yopititsira patsogolo, mayesero angapo anachitidwa pogwiritsa ntchito 0.06mm 3003 zitsulo za aluminiyumu kupanga mabokosi a nkhomaliro - ndi magulu atatu oyerekeza:

(A) Zitsanzo Magulu

Choyamba, magulu atatu osiyana anakonzedwa:

• Zoyeserera: Kujambulako kuchitiridwa ndi wokometsedwa magawo atatu ndondomeko.

• Kulamula 1: Chojambulacho chimagwiritsidwa ntchito ndi chikhalidwe cha annealing (320°C × 8h, 5°C/mphindi kuzirala).

• Kulamula 2: Chojambulacho chimagwiritsidwa ntchito ndi unoptimized annealing (280°C × 3h, 20°C/mphindi kuzirala).

(B) Njira Zoyesera

Ena, mayesero athunthu adapangidwa kuti awunike momwe ntchito ikuyendera:

• Microstructure: Kukula kwambewu kumayezedwa ndi 500 × metallographic microscope; Al₆Mn morphology yowunikidwa kudzera pa TEM.

• Makina: Kulimba kwamphamvu / kutalika koyesedwa kudzera pamakina apadziko lonse lapansi; kuuma kudzera pa Vickers tester.

• Kukana puncture:

• • Mayeso a labu: Gb / t 31985-2015 muyezo, pogwiritsa ntchito singano yachitsulo 1mm (5mm/mphindi liwiro) kuyeza mphamvu ndi mphamvu.

• • Mayesero enieni a utumiki: Kugwedezeka kotengera takeaway (10Hz, 30min) ndi nthiti za mafupa, kuwerengera kutayikira.

(C) Zotsatira zazikulu

Pomaliza, zotsatira zoyeserera zidatsimikizira kuti njira yokometsedwa ndiyopambana:

Gulu Lachitsanzo	Ukulu wa Mbewu (μm)	Puncture Force (N)	Kutayikira Rate (%)
Zoyeserera	6.2±1.0	16.2±0.8	1.1
Kulamula 1	11.5±2.3	12.3± 0.6	5.8
Kulamula 2	4.8±0.8	17.5± 0.7	4.2

(D) Mapeto

Kuchokera pazotsatira izi:

• Gulu loyesera linakwaniritsa miyezo yamakampani (kutayikira ≤2%) chifukwa cha microstructure yake yabwino.

• Kuwongolera kwalephera: Kulamula 1 analibe mphamvu yoboola (mbewu coarse), pamene Control 2 analibe mphamvu mayamwidwe (elongation yotsika).

ECO-I. Njira Zogwiritsira Ntchito Engineering

Pakuti wokometsedwa annealing ndondomeko kukhala yotheka mu misa kupanga disposable 3003 aluminium zojambulazo nkhomaliro mabokosi, njira zitatu zazikuluzikulu za uinjiniya ndizofunikira-kulinganiza magwiridwe antchito, ika mtengo, ndi khalidwe:

(A) Kukweza Zida

Choyamba, kukweza zida zopangira ma annealing kumapangitsa kuti zikhale zofanana:

• Tengani “kutentha kwa infrared + Kufalitsidwa kwa mpweya” ng'anjo: Kutentha kwa infrared kumawongolera kutentha kufika ±1°C; 0.5-1m/s mpweya kuyenda kumathetsa kusiyana kwa kutentha kwa pamwamba (≤1°C), kulimbikitsa kufanana kwambewu kuti >90%.

• Onjezani zoyezera makulidwe pa intaneti (0.1μm zolondola) kuzindikira kusinthasintha komwe kumayambitsa kukomoka kosagwirizana.

(B) Kuwongolera Mtengo

Wachiwiri, kukhathamiritsa ndondomeko magawo amachepetsa ndalama:

• Kufupikitsa preheating mpaka 1-2h (vs. 3-4h mwamwambo) ndi kukhala ndi nthawi kwa 3-5h-kuchepetsa kuzungulira kwa annealing ndi 20%-30% ndi kugwiritsa ntchito mphamvu ndi 15%-18%.

• Gwiritsani ntchito kutentha kwa zinyalala pozizira kuti mutenthetsere zojambulazo zomwe zikubwera, kutsitsa mphamvu ya mayunitsi kuchoka pa 80kWh/tani kufika pa 65kWh/ton.

(C) Kuyang'anira Ubwino

Wachitatu, kugwiritsa ntchito cheke chokhazikika kumatsimikizira kusasinthika:

• Chitsanzo mpukutu uliwonse zojambulazo 3 mafunde (mutu/pakati/mchira), pogwiritsa ntchito micro puncture tester (1mm singano, 5mm/mphindi) kutsimikizira mphamvu ≥15N.

• Yesani 100 nkhomaliro mabokosi pa mtanda ndi zosakaniza fupa, amafuna kutayikira ≤2%.

ECO-J. Pomaliza ndi malingaliro

Powombetsa mkota, zomveka zomwe zimapangitsa kuti zitsimikizidwe zopukutira kukana 3003 Mabokosi a aluminium foil mabokosi owonda mpaka pansi pa 0.07mm agona mu njira yolimbikitsira atatu (250-280° C p preaat → 300-320 ntse → 10-15 ° C / MIMO). Njirayi imagwiritsa ntchito ma microstruction ogwiritsa ntchito kuti akwaniritse zofunikira zazikulu (Force ≥15N, kutayikira ≤2%).

Chitsimikiziro choyesera imatsimikizira mtengo wake: 0.06Mabokosi a Mm FOIL AMAVUTA ACHINYAMATA 16.2N Ng, 1.1% kutulutsa, ndi 15% Njira zopezera mphamvu zowonjezera.

Kuyang'ana M'tsogolo, njira ziwiri zidzapititsa patsogolo ntchito:

• Onani “kuphatikiza-kupanga annealing” kuchepetsa kusinthasintha kwa magwiridwe antchito kuchokera kusungirako kutentha kwa chipinda.

• Gwiritsani ntchito microalloying (E.g., kutsatira Zr) kuyenga mbewu, kupangitsa ngakhale zojambula zowonda kwambiri (<0.05mm) ndi kukana kwambiri puncture.