• Background

Ho bōpa bohloko ke eng?

Letsa bōpa ke tshebetso ya ho theha tube, e entsoeng ka ho qhibilihisoa (bitsoa parison kapa preform) ea lintho tse bonahalang thermoplastic (polymer kapa lehoakhoa) le beha parison kapa preform ka hare ho lehare cavity le inflating tube, le moea petetswa, ho nka sebopeho sa lesoba le ho pholisa karolo pele u tlosa hlobo.

Karolo efe kapa efe e nang le sekoti ea thermoplastic e ka boptjoa.

Likarolo ha li felle feela libotlolong, moo ho nang le pulo e le 'ngoe' me hangata e nyane ka bophara kapa boholo ho feta litekanyo tsa mmele ka kakaretso. Tsena ke tse ling tsa libopeho tse atileng ka ho fetesisa tse sebelisitsoeng lipaketeng tsa bareki, leha ho le joalo ho na le mefuta e meng e tloaelehileng ea likarolo tse betliloeng tse otlang, ho kenyeletsoa, ​​empa ha e felle ho:

  • Lijana tse ngata tsa indasteri
  • Mohloa, liratsoana le lintho tsa ka tlung
  • Lisebelisoa tsa bongaka le likarolo, lintho tsa ho bapala
  • Lihlahisoa tsa indasteri ea kaho
  • Likoloi-tlasa likarolo tsa hood
  • Lisebelisoa tsa lisebelisoa

Letsa bōpa Processes Processing

Ho na le mefuta e meraro ea mantlha ea ho bopa bohloko:

  • Extrusion bohloko bohloko
  • Ente bohloko hlobo
  • Ente otlolla bohloko

Phapang e ka sehloohong har'a bona ke mokhoa oa ho etsa parison; ekaba ka extrusion kapa ka ente, boholo ba parison le mokhoa oa ho sisinyeha lipakeng tsa parison le hlobo ea bohloko; ebang e eme, e tsitsitse, e lekane kapa e rotary.

Ka Extrusion letsa bōpa- (EBM) polymer e qhibilihile le qhibiliha tiileng extruded e extruded ka e shoa ho theha tube, sekoti kapa parison. Likarolo tse peli tsa hlobo e pholileng li koaloa joale ho potoloha parison, moea o nang le khatello o hlahisoa ka phini kapa nale, o o kenya ka sebopeho sa hlobo, ka hona o hlahisa karolo e sekoti. Kamora hore polasetiki e chesang e pholile ka ho lekana, hlobo e ea buloa ebe karolo e tlosoa.

Ho EBM ho na le mekhoa e 'meli ea mantlha ea extrusion, Continuous and Intermittent. Ka mokhoa o tsoelang pele, parison e ntšetsoa pele ka ho tsoelang pele mme hlobo e ea le ho tloha parison. Ka nako e sa lekanyetsoang, polasetiki e bokelloa ke extruder ka phapusing, ebe e qobella lefung ho theha parison. Mefuta ea hlobo e lula e le ka tlasa kapa ho potoloha extruder.

Mehlala ea Ts'ebetso e Tsoelang Pele ke Mechini e tsoelang pele ea Shuttle e tsoelang pele le Mechini ea Rotary Wheel. Mechini e kenang khafetsa ea extrusion e ka ba ho khutlisa Screw kapa Head Accumulator. Ho nahanoa lintlha tse fapaneng ha ho khethoa lipakeng tsa lits'ebetso le boholo kapa meetso e teng.

Mehlala ea likarolo tse entsoeng ke ts'ebetso ea EBM e kenyelletsa lihlahisoa tse ngata tse sekoti, joalo ka libotlolo, likarolo tsa indasteri, lintho tsa ho bapala, likoloi, lisebelisoa tsa lisebelisoa le liphutheloana tsa indasteri.

Mabapi le ts'ebetso ea Injection Blow Systems - (IBS), polima ke ente e bopehileng holima mokokotlo o ka hare ho lesoba ho etsa tube e sekoti e bitsoang preform. Li-preform li potoloha ka molamu oa mantlha ho hlobo ea hlobo kapa hlobo seteisheneng sa ho thunya hore se tšeloe moea le ho pholile. Ts'ebetso ena e tloaetse ho sebelisoa ho etsa libotlolo tse nyane, hangata 16oz / 500ml kapa ka tlase ho sephetho se phahameng haholo. Ts'ebetso ena e arotsoe ka mehato e meraro: ente, ho foka le ho ntsha, tsohle li etsoa mochining o kopaneng. Likarolo li tsoa ka litekanyo tse nepahetseng tse felileng mme li khona ho ts'oara mamello e thata-ntle le lisebelisoa tse ling ha li etsoa li sebetsa hantle haholo.

Mehlala ea likarolo tsa IBS ke libotlolo tsa meriana, likarolo tsa bongaka le litlolo tsa lihlahisoa tsa bareki.

Injection Stretch Blow Molding- (ISBM) ts'ebetso ea Injection Stretch Blow Molding- (ISBM) e ts'oana le ts'ebetso ea IBS e hlalositsoeng kaholimo, ka hore preform e entsoe ka ente. Sebopeho se bōpiloeng se ntan'o hlahisoa ka hlobo ea sebopeho maemong a boemo bo botle, empa pele moea o phatloha la ho qetela, sebopeho se otlolohile ka bolelele le ka mokhoa o fetelletseng. Li-polymeri tse tloaelehileng tse sebelisoang ke PET le PP, tse nang le litšobotsi tsa 'mele tse matlafatsoang ke karolo e sarolohang ea ts'ebetso. Ho otlolla hona ho fa karolo ea hoqetela matla le litšitiso tse ntlafalitsoeng ka litekanyo tse bobebe le botenya bo betere ba mabota ho feta IBS kapa EBM - empa, ntle le meeli e meng joalo ka lijana tse tšoaroang, jj. ISBM e ka aroloa ka Mohato o le mong le Mehato e 'meli tshebetso.

Lenaneong la Mohato o le mong Ts'ebetso ea ho etsa thepa ea preform le ho foka ea botlolo li etsoa mochining o le mong. Sena se ka etsoa ka mechini ea seteishene sa 3 kapa 4, (Injection, Conditioning, Blow and Ejection). Ts'ebetso ena le lisebelisoa tse amanang le eona li ka sebetsana le mefuta e nyane ho isa holimo ea libotlolo tse fapaneng tsa sebopeho le boholo.

Lenaneong la Mehato e 'meli sebetsa polasetiki e pele bōptjoa ka preform sebelisa mochini ente bōpa arohane le hlobo bōpa. Tsena li hlahisoa ka melala ea libotlolo, ho kenyeletsoa le likhoele qetellong e bulehileng ea preform e koetsoeng sekoti. Li-preform tsena li pholile, li bolokiloe, ebe li fepeloa hamorao mochining oa mochini o futhumatsang mocheso. Ts'ebetsong ea Double Step Reheat Blow, li-preform li futhumetse (ka tloaelo li sebelisa li-infrared heater) kaholimo ho mocheso oa phetoho ea khalase, ebe li otlolloa le ho fehloa li sebelisa moea o matla oa khatello moeeng oa bohloko.

Ts'ebetso ea Mehato e 'meli e tšoaneleha haholo ho lijana tse phahameng haholo, litara e le 1 le tlase, ka ts'ebeliso e thata haholo ea lehoakhoa e fanang ka matla a maholo, mokoallo oa khase le likarolo tse ling.

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