Olee otú melite okpomọkụ akara ike nke 8011 aluminom foil maka nkwakọ nri?
8011 aluminom foil, ya na ezigbo formability, ndakọrịta akara okpomọkụ, na ihe mgbochi, bụ isi ihe maka nkwakọ nri (yogọt lids, akpa nri esiri esi, mmiri ara ehi ntụ ntụ nwere ike mechie, wdg.). Ike akara okpomọkụ ya na-ekpebi iguzosi ike n'ezi ihe nke nkwakọ ngwaahịa, nchekwa / njem ogologo oge, na ngwaahịa shelf ndụ. Ịkwalite okpomọkụ akara ike nke 8011 Nkwakọ nri aluminom chọrọ usoro n'usoro n'ofe akụkụ anọ: Nhọrọ ihe na ọgwụgwọ, Nkwalite usoro akara ọkụ ọkụ, Nhazi Nhazi, na Njikwa Usoro Mmepụta. Nke a ga-edozi ike, akara iguzosi ike n'ezi ihe, na mmepụta arụmọrụ iji gboo ihe achọrọ nke ọnọdụ nkwakọ ngwaahịa dị iche iche.
I. Njikarịcha nke 8011 Aluminom foil ihe onwunwe: Iwulite ntọala siri ike maka mkpuchi ọkụ
Ihe mejupụtara alloy, obioku, na elu àgwà nke 8011 Aluminom foil na-etolite ihe ndabere maka ike akara okpomọkụ. Ezubere iche maka njikarịcha nwere ike ịkwalite ike njikọ na akara site na isi mmalite.
1. Njikwa ziri ezi nke ihe mejupụtara na iwe ọkụ
8011 aluminum bụ nke 8xxx usoro aluminum-manganese alloy. Ịmezi ihe ndị na-achọpụta ihe na ime ka iwe dị ọkụ nwere ike melite ndakọrịta akara okpomọkụ:
- Alloy Element Optimization: Na-agbakwunye ọnụọgụ chromium (Cr) nwere ike mee ka oke ọka kwụsie ike, igbu oge recrystallization n'oge okpomọkụ akara, gbasaa windo okpomọkụ akara okpomọkụ (site banyere 30% tụnyere ọkọlọtọ 8011), belata nrụgide na oge chọrọ, ma melite nkwụsi ike nke ike akara akara. Na-achịkwa ígwè (Fe) na silicon (Na) ọdịnaya n'ime oke ezi uche (Fe ≤ 0.7%, Na ≤ 0.6%) na-ezere usoro adịghị ọcha gabigara ókè nke nwere ike ibelata ike njikọta ihu.
- Nhọrọ iwe: Mmasị 8011-H18/H19 foil ike iwe. Ike mmụpụta ya nwere ike iru 36,000 disi (~ 248 MPa), 20% elu karịa 3003 alloy. Ọ na-adịkarị mfe nrụrụ na wrinkling n'oge akara, n'ịhụ na ọbụna nrụgide nkesa na akara. Mpempe iwe dị nro (H22/H24) dabara adaba maka nkwakọ ngwaahịa na-agbanwe agbanwe mana chọrọ nrụgide mkpuchi dị elu iji kwụọ ụgwọ maka ike dị ala.
- Dakọtara Ọkpụrụkpụ: A na-ahụkarị ọkpụrụkpụ maka nkwakọ nri bụ 0.01-0.05 mm (10-50 μm). Foil nke dị gịrịgịrị na-adịkarị mfe ọkụ-site na ike ezughị oke; oke oke na-eme ka o kwe omume nwayọ, na-achọ okpomọkụ dị elu nke nwere ike ịka oyi akwa mkpuchi. Ihe mkpuchi yogọt na akpa nri na-ejikarị 0.02-0.03 mm, mgbe obere akpa retort/autoclave maka nri esi nri nwere ike iji 0.04-0.05 mm nagide mkpuchi okpomọkụ dị elu..
2. Pretreatment n'elu: Na-ewepụ ihe mgbochi njikọta ihu
Ihe nkiri oxide eke (Alo₃) na mmanụ ndị dị na foil aluminum na-egbochi nrapanye n'etiti akwa mkpuchi na foil. Ọgwụgwọ mbụ bụ nzọụkwụ dị oke mkpa maka ịkwalite ike akara okpomọkụ.
- Iweda na nhicha: Jiri alkaline degenreasing + mmiri dị ọcha na-asacha + ihicha ikuku na-ekpo ọkụ iji wepụ mmanụ na-atụgharị nke ọma, uzuzu, na ihe ndị ọzọ, n'ịhụ na ọ dịghị mmanụ ihe nkiri fọdụrụnụ. Zere ihe nchacha ihe na-emebi emebi nke ukwuu iji gbochie ire ụtọ elu na-emebi emebi.
- Ọgwụgwọ ịgbalite elu:
- Ọgwụ Corona: Na-eji mwepu voltaji dị elu mepụta obere ihe adịghị ike na otu ndị na-arụ ọrụ pola n'elu, na-abawanye esemokwu elu ruo 38-42 mN/m. Nke a na-eme ka adhesion na ihe nkiri na-emekọ ihe ọnụ, na-akwalite ike mkpuchi okpomọkụ site na 15%-20%.
- Ọgwụgwọ Plasma: Na-eji ogbunigwe plasma argon/oxygen iji wepu oke oke ala na-adịghị ike wee webata otu ndị na-arụ ọrụ dị ka hydroxyl/carboxyl.. Mmetụta mmeghari ahụ bụ otu na-adịgide adịgide, adabara maka nkwakọ ngwaahịa nri dị elu (E.G., mmiri ara ehi ntụ ntụ, ngwaahịa ahụike), na-emeziwanye ike njikọta ihu site n'ofefe 30%.
- Chemical etching: Ọkpụkpụ acidic dị nro na-arịtụ elu, na-eke otu obere olulu mmiri iji mee ka mpaghara kọntaktị maka oyi akwa mkpuchi. Kwesịrị ekwesị maka ngwakọta ndị nwere ihe mkpuchi na-abụghị polar dị ka PE na PP.
- Njikwa ogo elu: Jikwaa nke ọma ntụpọ n'elu dị ka ncha, wrinkles, pinholes, na ntụpọ na-egbuke egbuke. Nrụrụ ndị a nwere ike ịmalite ebe adịghị ike nke nwere ike mechie ọdịda na ntapu.
Ami. Sealant Layer na Nhazi Ọdịdị: Ịkwalite Ike nkekọ Akara
8011 Aluminom foil n'onwe ya anaghị ekpocha ọkụ. A na-enweta mkpuchi okpomọkụ site na mkpuchi mkpuchi ma ọ bụ laminating na ihe nkiri mkpuchi. Ngwakọta ngwakọta na nhọrọ ihe na-ekpebi kpọmkwem njedebe elu nke ike akara.
1. Nhọrọ ihe eji eme ihe: Na-ebute ndakọrịta na ike ụzọ
Họrọ ihe mkpuchi dị mma maka ihe eji eme nkwakọ ngwaahịa (ambient, refrigerate, megharia), na-elekwasị anya akara okpomọkụ, agbaze eruba, ike nkekọ, na nchekwa kọntaktị nri:
| Ihe eji eme ihe | Ngwa dabara adaba | Mechie okpomọkụ | Uru | Ntụtụ aka n'ihe akara ike ọkụ |
|---|---|---|---|---|
| Polyethylene dị obere (LDPE) | Nri gburugburu/Frigered (yogot, nri nri) | 150-180C | Ogo agbaze nke ọma, ọnụ ala, ezigbo mgbanwe | 8-12 N/15mm |
| Polyethylene dị ala dị ala (LLDPE) | Nkwakọ nri izugbe, na-achọ nkwụsị nkwụsị | 160-190C | Ike dị elu, ezigbo anya mmiri na-eguzogide, obosara akara window | 10-15 N/15mm |
| Polypropylene (CPP/Ihe nkedo PP) | Nri weghachite (nri esiri esi, ngwongwo mkpọ) | 180-220C | Okpomọkụ na-eguzogide, ezigbo mgbochi, elu isi ike | 12-18 N/15mm |
| Ethylene-Vinyl acetate (Eva) | Akara obere okpomọkụ, chọrọ tackiness | 130-160C | Okpomọkụ mmalite akara dị ala, ike mbido mbụ | 7-10 N/15mm |
| Polyolefin gbanwechara (POE/mPE) | Nkwakọ ngwaahịa mgbanwe dị elu, ahịrị ọsọ ọsọ | 150-190C | Ike akara dị elu, ezigbo ọkụ ọkụ, mgbochi mmetọ | 15-20 N/15mm |
2. Nkwalite nhazi ihe mejupụtara: Mmekọrịta Multi-Layer maka Ike
Nabata usoro ihe mejupụtara nke “foil + nrapado + mkpuchi mkpuchi”, iji interlayer imewe kwalite n'ozuzu akara arụmọrụ.
- Nhọrọ nrapado: Mmasị nri-ọkwa polyurethane (PU)ma ọ bụ acrylic adhesives. Tinye arọ mkpuchi nke 3.5-4.5 g/m²iji hụ na interlayer bee ike n'etiti foil na sealant film / mkpuchi bụ ≥5 N / 15mm, igbochi delamination n'oge akara. Nkwakọghachi azụ chọrọ nrapado na-eguzogide okpomọkụ dị elu (na-eguzogide 121°C/30 min).
- Ụzọ Ngwa/Lamination Sealant Layer:
- mkpuchi mkpuchi Direct Sealant: Yiri n'otu n'otu akụkụ ahụ na-adịghị mma nke 8011 foil na PE, CPP, wdg., wee kpoo ka ọ bụrụ 0.005-0.01 mm sealant oyi akwa. Kwesịrị ekwesị maka mkpuchi (iko yogọt, wdg.), nweta ike akara nke 15-25 N / 15mm.
- Lamination akọrọ: Laminate 8011 foil na ihe nkiri PE/PP na-eji nrapado. Sealant oyi akwa ọkpụrụkpụ 0.02-0.04 mm. Kwesịrị ekwesị maka obere akpa nkwụnye, akpa akara nke akụkụ atọ, wdg., na-enye ndị ọzọ kwụsie ike n'ozuzu akara ike.
- Co-extrusion Lamination: Jiri usoro dịka “PET/AL/PE”. PET dị n'èzí na-enye ike/mbibi akwụkwọ, etiti 8011 foil na-enye ihe mgbochi, N'ime PE na-enye akara. Kwesịrị ekwesị maka retort, nkwakọ ngwaahịa na-adịgide adịgide, na-enweta ike akara n'elu 20 N / 15mm.
- Nhazi akara: Jiri okpukpu abụọ, obosara akara (obosara akara ≥5 mm)ịbawanye mpaghara kọntaktị. Na-agbakwụnye mgbanaka flange (Peuuu) n'ime akara n'ihu mma compactness na ike. Yogurt mkpuchi na-eji nke a imewe nweta ike akara nke 20-30 N/15mm.
Adii. Nkwalite usoro akara ọkụ ọkụ: Njikwa ziri ezi maka ike kacha mma
Akara okpomọkụ, okwukwa, na oge bụ atọ isi parameters. Ha ga-adakọrịrị na ihe, ntinyere, na njirimara ngwaahịa iji mepụta windo usoro kwụsiri ike.
1. Nhazi usoro isi (General Range maka 8011 Nkwakọ ngwaahịa Ngwakọta Foil)
| Oke | Ọrụ | Oke kacha mma | Isi akara njikwa |
|---|---|---|---|
| Mechie okpomọkụ | Na-agbaze oyi akwa sealant maka njikọ molekụla | 150-220C (LDPE: 150-180C; CPP: 180-220C) | Ọ dị obere → mgbaze ezughị ezu, Ike dị ala; Oke dị elu → sealant ịka nká, foil distortion, ịrapara |
| Nrụgide akara | Na-eme ka kọntaktị chiri anya, na-achụpụ ikuku | 0.2-0.6 MPa | Ọ dị obere → oghere, ike na-adịghị mma; Oke dị elu → foil wrinkling, sealant piakọta |
| Oge akara (Oge obibi) | Na-enye ohere ịnyefe okpomọkụ, njikọ zuru oke | 1-3 s (oke ọsọ: 0.5-1 s; obere ọsọ: 2-3 s) | Ọ dị mkpụmkpụ → akara ezughị ezu; Ogologo oke → arụmọrụ dị ala, ihe mere ịka nká |
| Oge oyi | Nkwado ngwa ngwa, na-emezi ọkụ ọkụ | 0.5-1 s | Ezughi oke jụrụ oyi → mgbagha akara, ike mbelata |
2. Ụzọ kachasị mma bara uru
- Nnwale mgbago okpomọkụ: Nwalee ike akara na nrụgide a kapịrị ọnụ / oge yana mmụba okpomọkụ (E.G., 10Celsius C) ime nkata a “okpomọkụ-ike usoro”. Kpebisie ike oke okpomọkụ kacha mma (ike kachasị elu na-enweghị ịka nká / mgbagwoju anya). E.g., maka LDPE, 165-175°C na-enye ike karịa 12 N / 15mm.
- Nrụgide & Nkwalite oge: Na okpomọkụ kacha mma, oge izizi (E.G., 1 s) ịchọta nrụgide dị irè kacha nta. Mgbe ahụ dozie nrụgide ka ịchọta oge kachasị dị irè, itule ike na ọsọ. Ahịrị dị elu nwere ike iji nrụgide dị elu (0.4-0.6 MPa) na obere oge (0.5-0,8 s).
- Nlekọta akụrụngwa: Na-ehicha agbà/platens akara mgbe niile iji wepụ ihe ndị fọdụrụ na ihe ndị na-emerụ emerụ, n'ịhụ flatness na ọbụna okpomọkụ conduction. Lelee ikpo ọkụ na njikwa okpomọkụ (±5°C ndidi). Gbanwee myirịta agba ka ịzenarị nrụgide na-enweghị isi na mgbanwe ike.
- Njikwa ọkụ ọkụ: Igwe ọkụ na-ekpo ọkụ (ike tụrụ ozugbo akara) dị oke egwu maka ahịrị ọsọ ọsọ. Gbaa mbọ hụ na ọkụ ọkụ ≥ 70% nke ike akara ikpeazụ iji gbochie ọdịda akara n'oge njikwa tupu ịjụ oyi. Enwere ike imeziwanye ya site na ịba ụba okpomọkụ ma ọ bụ ibelata oge oyi.
Eva. Usoro mmepụta na njikwa ọnọdụ ngwa: Na-ewepụ Isi Ihe Na-adịghị Ike
E wezụga ihe na usoro, mmepụta mmetọ, ihe emeputara ohuru njirimara, na nhazi nhazi na-emetụtakwa ike akara, na-achọ njikwa usoro zuru oke.
1. Mmepụta gburugburu ebe obibi na mgbochi mmetọ
- Mmepụta dị ọcha: Ejikwa ebe nkwakọ ngwaahịa iru mmiri ≤60%, okpomọkụ 20-25 ° C iji gbochie uzuzu / mmanu mmanu na akàrà. Maka ngwaahịa ndị nwere ike imeri akara (pirensu, ihendori), kpochaa mpaghara akara ozugbo emejuchara, ma ọ bụ jiri “atụmatụ akara na-eguzogide mmetọ” (mpaghara akara ewelitere n'elu ọkwa njuputa).
- Nchekwa ihe nkiri/foil laminated: Chekwaa ihe ndị a kpuchiri ekpuchi ka agbachiela iji gbochie mmịnye/oxidation nke mmiri. Ndụ nchekwa ≤3 ọnwa iji gbochie ịka nká nrapado na mmebi ihe.
2. Ezubere iche maka ọnọdụ nkwakọ ngwaahịa nri dị iche iche
- Nri gburugburu/Frigered (Yogọt, Nri nri): Jiri akara LDPE/LLDPE. Kchie na 160-170 ° C, 0.3-0.4 MPa, 1 s, na 5 mm akara obosara. Ebumnuche ebumnuche ≥10 N/15mm iji gbochie mgbawa mgbe refrigeration gasịrị.
- Nri weghachite (Nri esi nri, Ngwaahịa mkpọ): Jiri CPP/retort-grade PE sealant. Kpoo ọkụ na 190-210 ° C, 0.4-0.6 MPa, 2-3 s. Jiri ụlọ na-eguzogide okpomọkụ (PET/AL/CPP). Ike ebumnuche ≥15 N/15mm, na-eguzogide 121 ° C / 30 min retort na-enweghị ntapu.
- Nri ntụ ntụ/Liquid (Mmiri ara ehi ntụ ntụ, Ihe ikoonu): Jiri akàrà obosara + okpukpu abụọ. Họrọ metallocene PE maka mgbochi mmetọ. Kpochapụ ebe mkpuchi nke ọma mgbe emejuchara iji gbochie ihe fọdụrụ na-akpata akara adịghị ike.
3. Nhazi nhazi na nyocha ogo
- Ntụcha na ịtọ ntọala: Ngwa ngwa dị jụụ akàrà na ikuku oyi iji kwado ngwa ngwa, belata agbagọ, ma kwalite nkwụsi ike ike.
- Nnwale ike: Jiri 180° Peel ule (Gb / t 21302) iji tụọ ike akara (N / 15mm). Ụkpụrụ izugbe: ≥8 N / 15mm maka ambient, ≥12 N / 15mm maka retort. Nwalee iguzosi ike n'ezi ihe akara (ule ntapu agụụ, imikpu mmiri).
- Ogbe kwụsie ike njikwa: Kwado usoro usoro tupu mmepụta ogbe ọ bụla. Dekọọ okpomọkụ, okwukwa, oge. Mee nlele ike akara mgbe niile, n'ịhụ na mgbanwe ogbe-na-ogbe ≤10%.
V. Okwu na ngwọta nkịtị
| Okwu | Ihe kpatara ya | Ngwọta |
|---|---|---|
| Ike akara dị ala, mfe bee | Obere okpomọkụ, ezughị oke nrụgide, obere oge; Adhesion na-adịghị mma n'etiti sealant na foil | Mee ka okpomọkụ dị elu 10-20 ° C, mmụba nrụgide 0.1-0.2 MPa, ịgbatị oge 0,5-1 s; Kwalite nhazi ihu igwe, gbanwee nrapado |
| Akara gbajiri agbagọ/gbagọ | Okpomọkụ dị oke elu, nrụgide dị oke elu; Ọkpụrụkpụ foil na-adaghị adaba | Belata okpomọkụ 10-15 ° C, belata nrụgide; Jiri foil nwere ịdị larịị ka mma |
| Sealant na-arapara n'agba, mmebi oyi akwa | Okpomọkụ dị oke elu, mmebi nke sealant; Agba na-enweghị isi | Belata okpomọkụ, belata oge; Agụ dị ọcha, gbanwee gaa na sealant na-eguzogide okpomọkụ |
| Akara adịghị ike etinyere mpaghara | Myirịta/nrụgide na-ekwekọghị ekwekọ; Mechie mmetọ mpaghara | Gbanwee myirịta agba; Mpaghara akara dị ọcha, kwalite usoro ndochi |
Vi. Nchịkọta na Trends
Ịkwalite okpomọkụ akara ike nke 8011 Aluminom foil nri nkwakọ ngwaahịa bụ a oru ngo nke gụnyere ihe, otu esi emeputa ihe, ndoko, na njikwa: Jiri foil 8011-H18/H19 dị ka ntọala, welie njikọ ihu igwe site na ịgbalite elu; Dakọtara na ihe mkpuchi dị ka LDPE/LLDPE/CPP, imewe multi-layer composites; Jikwaa nke ọma parampat isi atọ - okpomọkụ (150-220C), okwukwa (0.2-0.6 MPa), oge (1-3 s); Mejuputa njikwa mmetọ nke ọma yana nleba anya nke ọma. Nke a nwere ike nweta ike akara nke 15-30 N / 15mm, na-ezute ihe nchekwa na akara akara ụgbọ njem maka nkwakọ nri dị iche iche.
Na-ele Anya Anya, dị ka nri nkwakọ ọnọdụ kwupụta elu ọsọ, aru oru, na nkwado, 8011 teknụzụ mkpuchi foil ga-aga n'ihu: Nano- mkpuchi (E.G., SiOx) na foil nwere ike welie njigide ihe mgbochi na ihe mgbochi; Akụrụngwa mkpuchi nwere ọgụgụ isi nwere nleba anya n'ịntanetị nke okpomọkụ, okwukwa, na ike ga-eme ka usoro njikarịcha akpaaka; Ihe mkpuchi bio dabere (E.G., Pla) jikọtara ya na 8011 foil ga-akwalite nkwalite ike na nkwakọ nri na-adigide.