Ukujongana neePinholes & Ukwandiswa kwe-Post-Retorting kwi 8079 Ifoyile yeAluminiyam yeePowutshi zokuBuyiselwa koBubushushu obuPhezulu (6.50μm/O Ubushushu): Ubuchule bokulawula ukuqengqeleka
1. Intshayelelo: IiMfuno zokuSebenza ze 8079 I-Aluminiyam yeFoil ye-High-Temperature Retort Pouches kunye nokubaluleka koLawulo lwePinhole
Iipowutshi zobushushu obuphezulu zezona zithwala zingundoqo zokupakishwa kokutya okuntsholongwane (I-E.G., inyama, iimveliso zesoya, ifuna 121-135℃ high-uxinzelelo inzalo umphunga for 30-60 imizuzu). Ngokukodwa, i 8079 ifoyile yealuminiyam kwiingxowa zobushushu obuphezulu (6.50μm ubukhulu, O umsindo, o.k., I-anjiwe ngokupheleleyo) kumaleko wabo odibeneyo udlala indima ebalulekileyo ekuthinteleni i-oksijini (umgangatho wothumelo ≤0.1cm³/(M²² · god)) kunye nomphunga wamanzi (izinga losulelo ≤0.1g/(m² · 20h)).
Umsindo we-O 8079 ingxubevange (Mn umxholo 0.8%-1.2%) inobude ≥30% kunye namandla esivuno ≤110MPa, ukuyenza ilungele umzobo onzulu kunye nokutywinwa kobushushu ngexesha le-retort pouch lamination. Nangona kunjalo, ukuqengqeleka kwegeyiji ebhityileyo eyi-6.50μm ithande ukuba nemingxunya-ukuba umngxuma wombhobho wedayamitha >20μm, umphunga unokungena kwifoyile ngexesha lokuvala inzala, kubangela ukonakaliswa kokutya. Ngokunzulu ngakumbi, imingxunya ithande ukwanda phantsi kobushushu emva kokubuyisela (ku121℃, i-coefficient yokwandiswa kwe-thermal yefoyile ye-aluminiyam yi-23.1×10⁻⁶/℃, kwaye imingxunya emincinci ingakhula ukuya kuthi ga kwi-30μm), ukubeka esichengeni hermeticity yokupakisha. Ngoku ka 2024 idatha yoshishino lokupakisha, ishishini elinye latsala nzima 5 million yuan ilahleko ngenxa yokukhumbula imveliso okubangelwa pinholes ezikumgangatho ophantsi 8079 ifoyile yealuminiyam yeepowutshi zobushushu obuphezulu. Ngoko ke, ukulungelelanisa inkqubo yokuqengqeleka kubalulekile ukulawula imingxunya ≤20μm kunye nokuthintela ukwanda kwangemva kokubuyiswa.
2. IiNdlela zokuSebenza kwePinhole kwi 8079 Ifoyile yeAluminiyam yeePowutshi zokuBuyiselwa koBubushushu obuPhezulu (6.50μm/O Ubushushu) Ngexesha le-Rolling
Ngokusisiseko, imingxuma kwifoyile yealuminiyam ebhityileyo eyi-6.50μm (ichazwe nguGB/T 31985-2015 njengemingxuma egqobhozayo enobubanzi >5μm) ikakhulu zivela kwiintlobo ezintathu zeziphene ngexesha lokuqengqeleka. Ezi ziphene, zicazululwe ngokubambisana neempawu ze 8079 i-alloy kunye ne-O-temper rolling iimpawu, zicacisiwe kule theyibhile ingezantsi:
Itafile 1: Ukuhlelwa kunye nezizathu zePinholes kwi 8079 Ifoyile yeAluminiyam (6.50μm/O Ubushushu) Izingxobo zokuBuyiselwa kobushushu obuphezulu Ngexesha lokuqengqeleka
| Uhlobo lwePinhole | Unobangela ongundoqo | Iimpawu zePinhole | Uluhlu lweDiameter (μm) | Imiba ephambili enempembelelo |
| Isiphene seMathiriyeli ekrwada | Ukolulwa kwe-Al₂O₃ inclusions kunye ne-hydrogen pores kwi 8079 iingots ngexesha lokuqengqeleka | Umgca, isasazwe ngendlela yokuqengqeleka | 15-30 | Ireyithi yokubandakanywa kwe-Ingot, i-porosity |
| Inkqubo yokudityaniswa | Umyinge wokucutha okugqithileyo wepasi enye ekuqengqelekeni okanye isantya esigqithileyo sokuqengqeleka esidala ukwaphuka | Ngokungaqhelekanga, imiphetho erhabaxa | 20-35 | Ukuhanjiswa kwezinga lokunciphisa, isantya esiqengqelekayo |
| Ungcoliseko-Ukwenziwa | Ukuphindaphindwa kwemikrwelo yomqulu okanye ukucinezela ukungcola kwe-oyile eqengqelekayo | Isetyhula/engaqhelekanga, imiphetho egudileyo | 10-25 | Uburhabaxa, ukucoceka kweoli |
Ngqo, idatha yovavanyo ibonisa ukuba xa izinga lokufakwa kwe-ingot >0.3%, ireyithi over-standard impahla ekrwada isiphene pinholes kule foil aluminiyam ifikelela 35%; xa isantya sokuqengqeleka >800m / yam, umyinge wenkqubo yokudityaniswa kwemingxuma yokuqhawuka iye phezulu 40%. Oku kuqaqambisa imfuno yolawulo ekujoliswe kulo kudidi ngalunye lwesiphene.
3. IiTekhnoloji eziQhelekileyo eziQhelekileyo zokulawula iiPinholes ≤20μm (Inqanaba ngenqanaba lokuPhuculwa)
Ukujongana nezi ndlela zingentla, inkqubo epheleleyo egxile “ukuhlanjululwa kwempahla ekrwada – inkqubo iparameters – ulawulo lwezixhobo – ulawulo oluphakathi” kufuneka kusekwe. Le nkqubo iqinisekisa i-pinholes ≤20μm ngaphakathi 8079 ifoyile yealuminiyam yeepowutshi zobushushu obuphezulu emva kokuqengqeleka, ngelixa ubeka isiseko sokusebenza okuchasene nokwandiswa okulandelayo:
(1) Ukunyangwa kweMathiriyeli ekrwada: Ukuthintela ukuThuthwa kwesiphene kuMthombo
Umgca wokuqala wokukhusela kwi-pinholes kulawulo olungqongqo lwempahla ekrwada.
- Inkqubo yokucoca i-Ingot:
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- Ukwamkelwa “ukucokiswa kwenitrogen + ukuhluzwa kabini kwe-ceramic” (umaleko ophezulu 50μm, umaleko osezantsi 20μm) ukususa i-Al₂O₃ inclusions kunye ne-hydrogen pores, ukulawula izinga lokufakwa kwe-ingot ≤0.05% kunye ne-porosity ≤0.02%;
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- Iyot Homogenses: Bamba kwi-580-600℃ ukuze 6-8 iiyure ukuqinisekisa iyunifomu Mn ukuhanjiswa, Ukunqanda ukuqhekeka kwendawo ngexesha lokuqengqeleka ngenxa yolwahlulo lokuhlangana.
- Ukufunyanwa kwe-Ingot Flaw kunye nokuHlola: Sebenzisa i-eddy yangoku yokukhangela isiphene (ubuntununtunu ≥5μm) ukwala iingots ezineziphene zangaphakathi, ukuqinisekisa 100% izinga lesiqinisekiso semathiriyeli ekrwada engena kwinkqubo yokuqengqeleka.
(2) UkuPhuculwa kweParameter eqengqelekayo ebandayo: Ukuziqhelanisa neePropati ze-8079-O Temper
Ukufudukela kwinkqubo yokuqengqeleka ngokwayo, ulungiselelo lweparameter lubalulekile ekunqandeni imingxunya yeepina ezingasebenziyo.
- Inyathelo loLwabiwo lweRayithi yokuNcitshiswa (ye-6.50μm yegeyiji, izinga lokunciphisa lilonke 96.8%, usebenzisa i-1.98mm iikhoyili eziqengqelekayo njengezinto ezikrwada):
Ukufezekisa ukuncipha okuchanekileyo ngelixa ulawula imingxunya, izinga lokunciphisa labiwa ngokwezigaba, njengoko kubonisiwe kwiThebhile 2:
Itafile 2: IiParameters zeNkqubo yokuQhutywa okubandayo kwiNqanaba ngalinye le 8079 Ifoyile yeAluminiyam (6.50μm/O Ubushushu) Yezingxobo zokuBuyiselwa kobushushu obuphezulu
| Inqanaba lokuqengqeleka | Ukutyeba kokungena (mm) | Ukutyeba kokuphuma (mm) | Ireyithi yokuNcitshiswa kwePasi enye (%) | Ireyithi yokuNcitshiswa eyongezelekayo (%) | Isantya sokuqengqeleka (m / yam) | Rolling Tension (N / m) | Injongo engundoqo |
| Ukuqengqeleka okurhabaxa | 1.98 | 0.80 | 59.6 | 59.6 | 300-400 | 80-100 | Ukubhitya ngokukhawuleza, ukugcina i-ductility |
| Ukuqengqeleka okuPhakathi | 0.80 | 0.20 | 75.0 | 89.9 | 500-600 | 100-120 | Ukuguqulwa okufanayo, ukunciphisa uxinzelelo lwangaphakathi |
| Gqibezela ukuqengqeleka 1 | 0.20 | 0.08 | 60.0 | 96.0 | 700-750 | 120-150 | Ulawulo lokutyeba lokuqala, ukuthintela ukwaphuka |
| Gqibezela ukuqengqeleka 2 | 0.08 | 0.0065 (6.50μm) | 91.9 | 99.7 | 650-700 | 150-180 | Ukucutha ngokuchanekileyo, imingxunya ≤20μm |
Phawula: Nangona izinga lokunciphisa kwi-Finnish Rolling 2 iphezulu, ukunciphisa isantya (650-700m / yam) kunye nokunyuka koxinzelelo (150-180N / m) iqinisekisa ukuhamba kweplastiki eqhubekayo ye-8079-O yomsindo wefoyile ye-aluminium, Ukuthintela imingxunya yeentsiba.
- Ukulawula Ubushushu beOyile eqengqelekayo: Gcina i-35-45 ℃ ukuze uqinisekise i-viscosity yeoli ezinzileyo (ISO VG22, i-viscosity 20-25mm²/s kwi-40℃). Oku kuphucula i-lubricity kwaye kunciphisa ukunamathela kwi-roll, i-trigger eqhelekileyo ye-pinholes engaqhelekanga.
(3) Ulawulo lwe-Roll and Rolling Oil: Ukuphelisa iiPinholes eziNxulutywayo
Okubaluleke ngokulinganayo kulawulo lweparameter kukulawula izixhobo eziqengqelekayo kunye nemidiya, echaphazela ngqo imingxunya ebangelwa kukungcoliseka.
- Roll Precision Control:
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- Imiqulu yokugqibezela yenziwe nge-DC53 die steel, zicinywe ukuba HRC62-65 ubulukhuni, ngoburhabaxa komhlaba Ra 0.2-0.4μm kunye cylindricity ≤0.002mm emva kokusila. Oku kunciphisa ukuphindaphinda komkrwelo kwifoyile;
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- Emva kokuqengqeleka 50,000 iimitha zefoyile yealuminiyam, ukwenza ubhaqo kwi-line isiphene imiqulu usebenzisa micrometer laser. Ukuba imikrwelo >5μm zichongiwe, yeka umatshini wokusila ngokukhawuleza ukuthintela ukubunjwa komngxuma ongaphezulu.
- I-Rolling Oil yokuCoca inkqubo: Inkqubo yokucoca yamanqanaba amathathu yamkelwa ukususa ukungcola, ngeeparamitha ezithile eziboniswe ngezantsi:
Itafile 3: IiParameters zeSistim esiThathu sokuHlunga kwi-Oli eRolling of 8079 Ifoyile yeAluminiyam yeePowutshi zokuBuyiselwa koBubushushu obuPhezulu
| Inqanaba lokuhluza | Ukuchaneka koHlelo (μm) | Izinto zokucoca | Uxinzelelo lokuSebenza (MPa) | Umjikelo woTshintsho (h) | Injongo yokucoca |
| Ukuhluzwa okurhabaxa | 50 | Mesh elukiweyo yentsimbi | 0.1-0.15 | 120 | Susa amaqhekeza amakhulu (>50μm) |
| Uhluzo oluhle | 10 | IFayibha yeglasi | 0.15-0.2 | 72 | Susa amaqhekeza aphakathi (10-50μm) |
| UkuHlungwa okugqibeleleyo | 5 | Polytetrafluoroethylene (PTFE) | 0.2-0.25 | 48 | Susa amasuntswana amancinci (≤10μm) |
Le nkqubo iqinisekisa ukucoceka kweoli eqengqelekayo kugcinwa ngaphantsi kweBanga le-NAS 8, ukuthintela i-debris yesinyithi ukuba icinezelwe kwi-foil ukuze yenze i-pinholes-induced pinholes.
4. Indima yeNkqubo yokuRola ekuthinteleni uKwandiswa kwePinhole emva kokuBuyisa (Iinkqubo kunye noQinisekiso)
Ngaphandle kolawulo lwepinhole ngexesha lokuqengqeleka, inkqubo yokuqengqeleka ikwadlala indima ephambili ekuthinteleni ukwandiswa kombhobho emva kobushushu obuphezulu.. Ubushushu bobushushu obuphezulu (121-135℃) kubangela uxinzelelo lwe-thermal kunye nokuguqulwa kweplastiki kwi-aluminium foil; iinkqubo ezingafanelekanga zokuqengqeleka zingakhokelela ekwandiseni imingxunya. Inkqubo yokuqengqeleka ye 8079 ifoyile yealuminiyam yeepowutshi zobushushu obuphezulu inokuthintela ukwandiswa kwe-pinhole ngokulungiselela i-microstructure kunye noxinzelelo lwangaphakathi:
(1) IiNdlela zoThintelo: Ukucokiswa kweenkozo kunye noNcedo loxinzelelo lwaNgaphakathi
Iindlela ezimbini ezingundoqo zixhasa umphumo wokuchasana nokwandiswa kwenkqubo yokuqengqeleka:
- Ukucolwa kweeNkozo ukuze kuLawulwe uTshintsho lweThermal: Ngokudibanisa okuphakathi (emva kokuqengqeleka okuphakathi, ubambe 580-600℃ ngenxa 4-6 iiyure) kwaye ugqibezele ulawulo loxinzelelo, ubukhulu bengqolowa befoyile buzinzile kwi-5-8μm (xa kuthelekiswa neenkozo eziqhelekileyo ze-10-15μm ze-O temper). Ifoyile ye-aluminiyam eneenkozo ezintle ibonisa ukwanda kwe-thermal efanayo, ukuthintela ukolula kwendawo kwimida yepinhole ngexesha lokubuyiswa kunye nokunciphisa ukwanda kwi-≤3μm.
- I-Post-Rolling Stress Relief Annealing: Ukongeza, emva kokugqiba ukutya, ubambe ku 200-220℃ ngenxa 2-3 iiyure zokuphelisa uxinzelelo lwangaphakathi oluqengqelekayo (ukunciphisa ukusuka kwi-150MPa ukuya ngaphantsi kwe-50MPa). Uxinzelelo olugqithisileyo lwangaphakathi lubangela ukuncipha okungalinganiyo kwe-foil ngexesha lokubuyisela, “ukutsala” imingxunya yokwandisa; ukunciphisa uxinzelelo kunokunciphisa izinga lokwandiswa 60%.
(2) Uqinisekiso lweshishini: Ulawulo lwePinhole kunye noVavanyo loKwandiswa
Ukuqinisekisa ukusebenza kakuhle kwezi ndlela, ishishini lamkele inkqubo engentla yokuvelisa 8079 ifoyile yealuminiyam yeepowutshi zobushushu obuphezulu (6.50μm/O umsindo), ngeziphumo zovavanyo eziboniswe ngezantsi:
Itafile 4: Ukuthelekiswa koMsebenzi we 8079 Ifoyile yeAluminiyam (6.50μm/O Ubushushu) Iipowutshi zokuBuyiselwa koBubushushu obuPhezulu Phambi nasemva koLungiso lweNkqubo
| Into yovavanyo | Ngaphambi koPhuculo | Emva koPhuculo | Imfuneko yoMgangatho woShishino | Ireyithi yoPhuculo (%) |
| Umlinganiselo wePinholes ≤20μm (%) | 78 | 99.2 | ≥95 | 27.2 |
| Ubungakanani bomndilili weenkozo (μm) | 12 | 6.5 | – | 45.8 (izinga lokucokisa) |
| I-Rolling-Induced Internal Stress (MPa) | 145 | 48 | – | 66.9 (izinga lokunciphisa) |
| Ireyithi yoKwandiswa kwePinhole Emva kwe-121℃ yokuBuyisa (%) | 18 | 2.5 | ≤5 | 86.1 (izinga lokunciphisa) |
| Inqanaba lokuhambisa ioksijini (cm³ /(M²² · god)) | 0.12 | 0.08 | ≤0.1 | 33.3 (izinga lokunciphisa) |
Phawula: Izinga lokwandisa lichazwa njenge “inani lemingxuma yephini enobubanzi >20μm emva kokubuyisela / inani lilonke lemingxuma yezikhonkwane × 100%”. Emva kokuphucula, ifoyile ihlangabezana ngokupheleleyo neemfuno zeengxowa zobushushu obuphezulu, ngophuculo olulungelelanisiweyo ekusebenzeni komqobo-ukuqinisekisa ngakumbi ukuqondwa kwenkqubo.
5. Izigqibo kunye ne-Outlook
Isishwankathelo, ukufezekisa ulawulo lwepinhole (≤20μm) kunye nokuthintela ukwanda emva kokubuyisela ngenxa 8079 ifoyile yealuminiyam kwiingxowa zobushushu obuphezulu (6.50μm/O umsindo), inkqubo yokuqengqeleka ye “ukuhlanjululwa kwempahla ekrwada – ukunciphisa stepwise – imiqulu echanekileyo – ukunciphisa uxinzelelo” ibalulekile: ① Izinga lokufakwa kwe-Ingot ≤0.05% kunye nokucoceka kwe-oyile eqengqelekayo ngaphantsi kweBanga le-NAS 8 zisisiseko; ② Isantya esiphezulu se-650-700m / min kunye noxinzelelo lwe-150-180N / m kwi-Finnish Rolling 2 zingundoqo kulawulo umngxuma; ③ Ukufakwa okuphakathi kokucolwa kweenkozo (5-8μm) kunye noxinzelelo lwasemva kokuqengqeleka lungundoqo ekulweni nokwandiswa.
Ukujonga phambili, Izalathiso zophuhliso lwexesha elizayo zijolise kwimiba emithathu ukomeleza ngakumbi ukusebenza kwenkqubo: ① Intelligent Pinhole Monitoring: Faka i-laser pinhole detectors kwi-intanethi (ukuchaneka 1μm) ekugqibeleni ukukhutshwa kwengxelo yexesha lokwenyani kunye nohlengahlengiso lwenkqubo, ukunciphisa ukuthembela ekuhloleni ngesandla; ② I-Nanomodification ye-Rolling Oli: Yongeza amaqhekeza e-nano-MoS₂ (2-5μm ububanzi) ukuphucula i-lubricity kunye nokunciphisa ngakumbi imingxunya ebangelwa kukuncamathelisa umqulu; ③ Ingxubevange yeMicro-Alloying: Yongeza 0.02%-0.03% Yiyo leyo 8079 ingxubevange yokucoca iinkozo ze-ingot kunye nokunciphisa ukuhanjiswa kwesiphene ukusuka kumthombo.
Ekugqibeleni, umgaqo ongundoqo wenkqubo yokuqengqeleka 8079 ifoyile yealuminiyam yeepowutshi zobushushu obuphezulu kufuneka “thatha ulawulo lwe-pinhole njengenjongo kunye nokwandiswa kwe-anti-thermal njengokwandiswa”. Ngokusebenzisa multi-parameter synergy, ilungelelanisa i-ductility kunye nokuzinza kwe-dimensional ye-thin-gauge yefoyile ye-aluminiyam, Ukuqinisekisa ukhuseleko lokuvala inzala kunye nokuthembeka kokupakishwa kweengxowa zobushushu obuphezulu.