A parallel twin screw barrele ts'oara likurufu tse peli tsa bophara bo sa fetoheng li bapile ka setšoantšo sa borobeli. Li-screws li phethoha hammoho ebe li sutumelletsa thepa pele ka ho e tšoasa pakeng tsa lifofane, ho e-na le ho e hulanya leboteng ka tsela eo sekurufu se le seng se etsang ka eona. Liqeto tse peli tsa moralo li etsa qeto ea hore na mochini o ka etsa eng: tataiso ea ho potoloha (ho potoloha ka kopanelo kapa ho potoloha) le hore na marang-rang a tebile hakae (ka botlalo, ka mokhoa o itseng, kapa che ho hang). Fumana metsoako eo e 'meli e nepahetseng le e ts'oanang ea li-hardware, li-vents, kapa li-extrudes PVC tse thata.
Botsa barekisi ba bararo hore na "parallel twin screw barrel" ke eng, 'me u fumane likarabo tse tharo tse sa hlakang mabapi le "likurufu tse peli sebakeng sa se le seng." Hoo ho e thetsa. Tokisetso ea mafahla e fetola tsela eo thepa e tsamaeang ka eona mochining, 'me phapang eo e le 'ngoe ke ka lebaka leo li-screws tse peli li sebetsanang le mesebetsi eo sekoti se le seng se ke keng sa khona.
Tataiso ena e akaretsa metjhini, lilepe tse peli tse etsang qeto ea ts'ebetso, lintlha tsa 'nete tsa thepa le boholo. Bakeng sa setšoantšo se pharaletseng sa karolo, bona ronaextruder screw barrel guide.
Bapisa Twin Screw Barrel ke Eng?
Moqomo o ts'oanang oa "twin screw barrel" ke "plasticizing unit" ea "twin screw extruder". E na le likarolo tse peli tse sebetsang e le tsamaiso e le 'ngoe: barrel e nang le libore tse peli tse pota-potlanang tse entsoeng ka har'a eona, tse etsang karolo ea sefapano sa setšoantšo sa robeli, le li-screw tse peli tse lutseng ka har'a libore tseo.
Bapisaho bolela hore li-screw li boloka bophara bo lekanang ho tloha pheletsong ea phepelo ho isa pheletsong ea ho tsoa. Bore e lula e lekana ka bolelele bohle ba eona. Eo ke phapang e hlakileng ho tloha ho lefahla la conical, moo li-screws le li-screws ka bobeli li neng li thella ho leba lefung.
Sebopeho se ts'oanang se fana ka moqapi oa sefapano sa kamehla ho sebetsa le bolelele bohle, e leng se etsang hore ho be bonolo ho haha mechini e telele e nang le sebaka sa ho kopanya, ho kenya le ho kopanya likarolo. Papiso pakeng tsa mefuta e 'meli e koahetsoe ho ronaconical vs parallel guide.
Kamoo Parallel Twin Screw Barrel e Sebetsang Kateng, Mohato ka Mohato
- Ho fepa.Lintho li oela 'metsong oa phepelo ebe li lula holim'a likurufu ka bobeli hang-hang. Li-screws tse peli li nka li-powders, flakes, le lijo tse sa tloaelehang tseo screw e le 'ngoe e thatafalloang ho li tšoara.
- Ho fetisa.Li-screw lia fetoha 'me ho fofa ha screw e le 'ngoe ho hlakola kanale ea e' ngoe. Thepa e ts'oaroa ka har'a likamore tse nang le sebopeho sa C lipakeng tsa lifofane ebe e sutumetsoa pele ka mochini.
- Ho qhibiliha.Licheso tsa moqomo li fana ka karolo ea mocheso. Tse ling kaofela li tsoa ho kuta ha thepa e sebetsoa ka lekhalo le moqotetsane moo li-screw li kopanang teng, e leng sebaka se matla ka ho fetisisa mochining.
- Ho kopanya.Potoloho e 'ngoe le e 'ngoe e arola, e mena, ebe e kopanya metsi a qhibilihang. Karohano eo e pheta-phetoang ke eona e hasang li-filler, li-pigments le li-additives ka ho lekana.
- Ho kenya moea.Moqomong o tsoetsoeng, mocha o teba boema-kepe ba moea hoo khatello e theohelang haufi le zero. Mongobo le lintho tse sa tsitsang li balehela moo, hangata ka tlas'a vacuum.
- Ho pompa le metering.Karolo ea ho qetela e haha khatello 'me e fana ka ho qhibiliha ho tsitsitseng ho lefu kapa pelletizer.
Co-Rotating vs Counter-Rotating: Litsela tse peli, Mesebetsi e Mebeli
Li-screws li ka retelehela ka lehlakoreng le le leng kapa ka mahlakoreng a fapaneng. Khetho eo e le 'ngoe e fetola sebopeho sa mochini ka botlalo.
| Ho potoloha ka kopanelo | Khahlanong le ho potoloha | |
|---|---|---|
| Screw direction | Li-screw ka bobeli li fetoha ka tsela e tšoanang | Li-Screw li reteleha ka mahlakoreng a fapaneng |
| Tsela ea lintho tse bonahalang | E latela setšoantšo sa borobeli ho potoloha li-screw ka bobeli | E petelitsoe ka nip pakeng tsa likurufu |
| Shear | E phahameng, 'me e ka fetoloa ka li-screw elements | E tlase, 'me e bonolo holim'a lintho tse bonahalang |
| Lebelo la screw | Phahameng | Tlase |
| Khatello ea ho haha | E itekanetseng | E matla ebile e tsitsitse |
| Molemo ka ho fetisisa ho | Compounding, masterbatch, reactive extrusion, metsoako e tletseng | Pipe e thata ea PVC le profil, thepa e sa utloeng mocheso |
Ho potoloha ka kopaneloli-screw ke sesebelisoa sa ho kopanya. Sekere se phahameng le lebelo le phahameng li hasanya fiber ea khalase, pigment, le litlatsetso ka botlalo, e leng sona seo motsoako o fetotsoeng o se hlokang.
Khahlanong le ho potolohali-screw li sebetsa joalo ka pompo e tsamaisang sebaka se nepahetseng. Nōka e pakeng tsa tsona e isa thepa pele tlas'a khatello e matla ha ho kuta e tlaase, 'me ke sona seo PVC e se batlang, kaha PVC ea senyeha ha u e kuta ka thata. Tsa ronalibarele tse bilikang tse bapileng tsa sekotili hahiloe bakeng sa mosebetsi oo, 'me k'hemistri e ka morao e lutse ho ronaTataiso ea PVC screw barrel.
Ka ho Felletseng, Ka mokhoa o sa Feleng, kapa e seng Meshing: The Axis Most Guides Skip
Tataiso ea ho potoloha ke halofo feela ea likarolo. Axis ea bobeli ke hore na li-screw tse peli li hokahane ka botebo hakae, 'me batataisi ba bangata ha ba e bue.
Li-screw tsa rona tse tšoanang li tla ka mefuta e meraro ea meshing:ho kopanya ka botlalo, ho kopanya ka mokhoa o itseng, le ho se be le meshing. Phapang ke hore na sekoti se le seng se fihla hole hakae ka kanaleng ea se seng.
- Meshing ka ho feletseng.Ho fofa ha sekoti se le seng ho fihla motsong oa e 'ngoe, ho siea lekhalo le lenyenyane. Ona ke mofuta o atileng haholo ho li-plastic extrusion, hobane tumello e tiileng e fana ka ho kuta hantle le ho kopanya le ho hlakola likanale ho hloeka ha li-screw li ntse li fetoha.
- Meshing e sa fella.Li-screws li kopana, empa li tebile haholo. Ho fetisoa ho lula ho le monate ha seriti se theoha, se lumellanang le lisebelisoa tse ke keng tsa sebetsa ka thata.
- E seng meshing.Li-screws li lula ka mahlakoreng ntle le ho kopanela. Mochini o sebetsa haufi le li-screw tse peli tse le 'ngoe ka har'a moqomo o le mong, ka kalafo e bonolo ka ho fetesisa le ho fetisa hantle.
Taba e sebetsang ke hore "mafahla screw" feela ha e hlalose mochini. Meshing ka botlalo le ho potoloha ha counter ke sesebelisoa se fapaneng ho tloha ho meshing ka botlalo le ho potoloha ka kopanelo, 'me ka bobeli li fapane le tlhophiso e se nang meshing. Ha o hlakisa sete e ncha, mofuta oa meshing o tlameha ho ts'oana le mochini oo u nang le ona.
Ke Hobane'ng ha Li-Screws tsa Mafahla li Fapana ka Tsela e sa Tšoaneng ho Li-Screws tse le Mong
Sekurufu se le seng ke pompo e hulang. E ipapisitse le khohlano: thepa e tlameha ho khomarela lebota la moqomo ho feta kamoo e khomarelang sekoti, kapa e bilika feela sebakeng sa eona ho fapana le ho ea pele.
Ho itšetleha hoo ho baka mathata a sebele. Li-powder, li-flakes, le lijo tse thellang kapa tse khohlang tlaase ha li tšoare hantle, kahoo sekoti sea phahama kapa se lapa. Sephetho se fapana le hore na thepa e ntse e ts'oara hantle hakae letsatsing leo.
Li-screws tse peli li fetisa hantle. Ho fofa ha screw e 'ngoe ho fiela kanale ea e 'ngoe, kahoo thepa e sutumetsoa ka mochini hore na e ts'oara lebota kapa che. Sephetho se lula se tsitsitse, 'me phepelo e hlolang screw e le 'ngoe e feta ntle le tletlebo.
Ke ka lebaka leo li-screws tse peli li laolang ho kopanya le mosebetsi oa phofo oa PVC. Papiso e felletseng e ho ronaSekurufu se le seng vs sekoti sa mafahla.
Seo se entsoeng ka Parallel Twin Screw Barrel
Tšepe ea motheo e jara mojaro oa mechine. Sebaka se ka holim'a sona se nka ho apara. Mona ke litlhaloso tseo re li hahang li-screw tsa rona tse tšoanang.
| Tlhaloso | Boleng |
|---|---|
| Lisebelisoa tsa motheo | 38CrMoAlA |
| Phekolo ea mocheso thata | HB260–320 |
| Nitriding hardness | HV950–1000 |
| Ho teba ha nitriding | 0.50–0.70 mm |
| Nitriding brittleness | Kereiti ya 1 kapa ho feta |
| Bokhoakhoa ba bokaholimo | Ra0.4 |
| Screw straightness | 0.015 mm |
| Chrome plating thata | HV950 kapa ho feta |
| Botenya ba Chrome | 0.05–0.10 mm |
| Ho thatafala ha Bimetallic | HRC60–65 |
| Botebo ba Bimetallic | 2.0–3.0 mm |
Linomoro tse peli tafoleng eo li lokeloa ke tlhokomelo ha u bapisa mantsoe a qotsitsoeng.Screw otlolohile ho 0.015 mme etsa qeto ea hore na li-screw li sebetsa 'nete setšoantšong sa borobeli,' me sekoere se kobehileng se roala lehlakore le leng la bore ebe se senya sebaka sa sona.Nitriding brittlenesske tlhahlobo ea boleng eo barekisi ba bangata ba sa e phatlalatseng: mokotla o thata o theohileng tlas'a moroalo ho e-na le ho hana ho khathala.
Ka holim'a moaho o tloaelehileng, re iketsetse litšepe tsa mosebetsi o chesang, tšepe ea mosebetsi o batang, tšepe ea lebelo le holimo, tšepe ea phofo ea HIP le li-alloys tsa PTA. Ha fepa ka abrasive kapa senya, tsela bimetallic nka sebaka nitriding, le ronabimetallic vs tataiso ea nitridede koahela ha seo se lefa.
Sizing: Diameter, L/D, le Output
Screw Diameter e beha phallo. L/D e beha hore na mochini o na le sebaka se kae ho qhibiliha, ho kopanya le ho tsoa tseleng. Mona ke mehlala ea rona ea li-parallel screw screw tse nang le lipalo tsa tsona tse hatisitsoeng ho PVC.
| Mohlala | Screw dia (mm) | L/D | Tlhahiso ea PVC (kg/h) | Lebelo la Screw (rpm) | Enjene (kW) |
|---|---|---|---|---|---|
| NHY75 | 75 | 26–36 | 220–350 | 45 | 45 |
| NHY90 | 90 | 26–36 | 280–460 | 45 | 55 |
| NHY110 | 110 | 26–36 | 350–650 | 45 | 75 |
| NHY120 | 120 | 26–36 | 500–800 | 45 | 110 |
| NHY130 | 130 | 26–36 | 680–1000 | 45 | 132 |
Bala paterone ho fapana le mela feela. Sehlahisoa se batla se lekana bophara, 'me matla a motlakase a nyoloha ka sona, hobane ho sututsa thepa e ngata ho nka torque e eketsehileng. Sehlopha sa L/D se lula se tšoana hohle, kaha karo-karolelano ke khetho ea moralo ho e-na le ho latela boholo.
Ka ntle ho mefuta ena re etsa likurufu tse bapileng ho tloha ho 45 mm ho isa ho 150 mm, tse nang le L/D ho tloha ho 32:1 ho isa ho 38:1 ho lipeipi tsa rona tsa PVC kapa tse etselitsoeng mohala oa hau. Seo L/D e u rekelang sona se kenyelelitsoe ho tataiso ea rona ea karo-karolelano ea L/D, 'me lethathamo le felletseng le lutse ho ronaparallel twin screw product page.
Seo Parallel Twin Screws e hlileng e se Hlahisang
Malapa a mane a lisebelisoa a koahela boholo ba seo mechini ena e se etsang, 'me e tloha ho thepa e tala ho ea ho sehlahisoa se felileng.
Phetoho ea polasetiki le ho kopanya
Tšebeliso e tloaelehileng ka ho fetisisa. Matla a matla a ho kuta le a hasanyang a lumella polymer ea motheo joalo ka PP, PE, kapa ABS ho kopanngoa ka ho lekana le fiber ea khalase, fiber ea khabone, liretardants tsa lelakabe le li-antioxidants. Seo se hlahisa limaraka tse matlafalitsoeng, tse thibelang malakabe, kapa limaraka tse tsamaisang, joalo ka PP e matlafalitsoeng ka khalase e sebelisoang likarolong tsa likoloi le ABS e thibelang malakabe e sebelisoang ho tsa elektroniki.
Mmala le tshebetso masterbatch
Li-pigment tse nang le li-pigment tse phahameng, li-dae, kapa li-additives tse sebetsang li kopantsoe ka har'a resin ea carrier, ebe e ntšoa ebe e kenngoa ka pelletized. Sena se hlahisa masterbatch ea mebala bakeng sa ho daea, kapa masterbatch e sebetsang joalo ka limaraka tsa antistatic le antibacterial. Li-screws tse peli li rarolla bothata bo sa tšoaneng ba ho kopanya bo fokotsang li-screw tse le 'ngoe mosebetsing ona.
Ho bopa ka extrusion
Pipe, profil, sheet le filimi. Li-screws tse peli li lumellana le li-polymer tse nang le viscosity e phahameng, tse thata ho etsa polasetiki tse kang PVC le PC hantle haholo. Pipe ea drainage ea PVC, profil ea lemati le fensetere, le leqephe la PC kaofela li ipapisitse le polasetiki ea junifomo e fanoang ke sekoti sa mafahla, e leng sona se bolokang bofokoli ba sehlahisoa se le tlase. Tsa ronaPVC pipe parallel screw barrelho sebeletsa phala ea metsi le drainage, pompo ea motlakase, le phala e sireletsang.
Ts'ebetso ea polasetiki e nchafalitsoeng
Litšila tsa PP le PE li tsamaea ka ho kuta le ho futhumatsa ho tlosa litšila, ho imolla khatello ea maikutlo, le ho etsa polasetiki hape bakeng sa pelletizing. Phepelo e ntlafalitsoeng ha e tsamaellane 'me hangata e silafetse, e leng mofuta oa thepa e tsamaisang hantle hantle.
Mokhoa oa ho bolela ha Parallel Twin Screw Set e Hloka ho Felisoa
Marang-rang a marang-rang a hlaha libakeng tse tšoanang nako le nako, 'me mochini o u joetsa pele likarolo li bonahala li le mpe.
- Sephetho se oaka lebelo le tshwanang la sekurufu. Sehlahisoa se tsofetseng se etsa hore ho qhibilihe ho thelle morao ho fapana le ho ea pele.
- Ho kopanya marotholi a boleng.Methapo ea mebala kapa kabo e sa lekanang ea li-filler e bolela hore li-screw ha li sa hlakola tse ling hantle.
- Moroalo oa motlakase oa nyolohaka tlhahiso e sa khaotseng, e supang ho hula, ho se lumellane, kapa ho senyeha ha thepa ea mohaho.
- Ho hoholeha ha boleng bo holimoka sehlahisoa se felileng, hangata ntho ea pele eo lefapha la boleng le e hlokomelang.
Netefatsa ka lisebelisoa ho fapana le maikutlo. Lekanya OD ea sefofane 'me u bore ID khahlano le setšoantšo sa moaho, 'me u hlahlobe sebaka sa sebaka sa marang-rang, se ikhethileng ho li-screws tse peli tse hlokomolohuoang habonolo.
Ke Hobane'ng ha U Sebelisa Nanhaiya?
Nanhaiya e hahile likurufu le libarele ka lilemo tse fetang mashome a mabeli 'me e sebeletsa bareki ba 500+ lefatšeng ka bophara. Tsa ronamefuta e mengata ea li-screws tse peli tse bapilenge akaretsa ho kopanya, granulation, PS foaming, aluminium-plastic panel, rabara le polasetiki, le mosebetsi oa liphaephe tsa PVC, tse pota-potileng le ho pota-pota.
Sete e 'ngoe le e' ngoe e entsoe ka mochini ho tloha 38CrMoAlA 'me e phethetsoe ho ea ho lintlha tse tafoleng e ka holimo, ka taolo e tiileng ea mamello le tlhahlobo e matla ea ho leka-lekanya pele e tsamaea ka sekepe. Lisete tsa rona li hahiloe ho lumellana le mefuta e meholo ea extruder ho kenyeletsoa KraussMaffei, Cincinnati, le Jwell, 'me re etsa sebopeho sa screw profile, compression ratio, moralo oa ho kenya moea le libaka tsa ho futhumatsa mohala oa hau.
Pele re qotsa, baenjiniere ba rona ba sebetsa ka har'a liparamente le uena: bophara, karo-karolelano, botebo ba groove ea screw, le khetho ea thepa. Khoutu e akaretsa sehlahiswa, thomello le ditjeho tse lebelletsoeng tsa tokiso, mme e fihla ho wena nakong ya dihora tse 12. Kamora ho pepa, litsebi tsa rona li ts'ehetsa ho kenya le ho kenya tšebetsong, 'me litaba tsa kamora thekiso li fumana karabo nakong ea lihora tse 24.
Na u hloka sete e tšoanang ea sekoti se hahelletsoeng mochini oa hau? Romella mohlala oa hau, setšoantšo, kapa sampole e tsofetseng, hammoho le thepa eo u e tsamaisang. Re qotsa ka hare ho lihora tse 12.
Fumana Tlhaloso ea Twin ScrewLipotso Tse Botsoang Khafetsa
Bapisa twin screw barrel ke eng?
Ke yuniti e etsang polasetiki ea "twin screw extruder": barrel e nang le liboro tse peli tse fetang tse etsang karolo e robeli ea sefapano, e tšoereng likurufu tse peli tsa bophara bo sa feleng. Li-screws li fetisetsa lintho ho ea pele ka mochine ka ho li koala pakeng tsa lifofane tsa tsona, ho e-na le ho itšetleha ka ho hohlana ha lebota la moqomo.
Bapisa twin screw barrel e sebetsa joang?
Lintho li oela holim'a likurufu ka bobeli 'metsong oa phepelo. Ha li-screws li ntse li reteleha, ho fofa ha e 'ngoe ho hlakola mocha oa e' ngoe, ho tšoasa thepa le ho e sutumelletsa pele. Licheso tsa moqomo le ho kuta sebakeng se kopaneng lia e qhibilihisa, ho potoloha ho hong le ho hong hoa arohana ebe ho kopanya mokelikeli ho o kopanya, 'me karolo ea ho qetela e haha khatello ea ho fepa lefu.
Phapano ke efe lipakeng tsa ho potoloha ka kopanelo le ho potollana?
Li-screws tse pota-potileng li fetoha ka tsela e ts'oanang 'me li fana ka seriti se phahameng ka lebelo le phahameng, se lumellanang le metsoako, masterbatch, le metsoako e tlatsitsoeng. Li-screw tse pota-potileng li reteleha ka mahlakoreng a fapaneng 'me li sebetsa joalo ka pompo e tsamaisang sebaka se setle, se haha khatello e matla ha se kuta se tlase. Ketso eo e bonolo ke seo phala e thata ea PVC le profil e li hlokang.
Li-meshing tse felletseng, li-meshing, le li-screws tse se nang meshing ke life?
Li hlalosa kamoo li-screw tse peli li kenang ka botebo kateng. Li-screws tsa meshing tse feletseng li fihla motso oa e mong le e mong ka lekhalo le lenyenyane, ho fana ka ho kuta ka ho fetisisa le ho kopanya, 'me ena ke mofuta o tloaelehileng ka ho fetisisa oa li-plastiki extrusion. Li-screws tsa meshing tse nyane li kopana hanyane mme li fokotsa ho kuta. Li-screws tse se nang meshing li lula li bapile ntle le ho kopanela, li fana ka phekolo e bonolo ka ho fetisisa.
Phapano ke efe lipakeng tsa li-screws tse tšoanang le tsa conical mafahla?
Sekurufu sa mafahla se ts'oanang se boloka bophara bo lekanang ho tloha ho fepa ho ea ho ho tsoa, 'me bore e lula e le boholo bo sa fetoheng. Li-screw tapers tsa conical, tse nang le phepelo e kholoanyane e tšesaane ho isa lefung. Foromo e ts'oanang e fana ka karolo e sa khaotseng ea sefapano ka bolelele, e etsang hore mechine e telele e nang le venting le ho kopanya likarolo tse otlolohileng ho haha.
Ke hobane'ng ha u lokela ho sebelisa sekurufu sa mafahla ho e-na le sekoti se le seng?
Phetiso e ntle. Sekurufu se le seng se ipapisitse le khohlano, ka hona, thepa e tlameha ho ts'oara lebota la moqomo ho ea pele, 'me phofshoana, li-flakes le lijo tse thellang li baka ho hohola. Li-screws tse peli li sutumelletsa thepa ka mokhoa oa mochini ho sa tsotelehe ho ts'oara, e fanang ka tlhahiso e tsitsitseng le ho li lumella ho sebetsana le phepelo e hlolang screw e le 'ngoe.
Li-screws tse peli tse tšoanang li sebelisetsoa eng?
Malapa a mane a ka sehloohong: phetoho ea polasetiki le ho kopanya le fiber ea khalase, fiber ea carbon, kapa li-flame retardants; tlhahiso ea 'mala le ts'ebetso ea masterbatch; extrusion ea pipe, profile, sheet, le filimi ho kenyeletsa PVC le PC; le ho sebetsa hape ka polasetiki moo litšila tsa PP le PE li hloekisoang, ho etsoa polasetiki hape, 'me ho etsoa pelletized.
Na li-screws tse peli li tlameha ho nkeloa sebaka e le para?
Ee. Sebaka se pakeng tsa li-screw pakeng tsa li-screw tse peli se behiloe nakong ea ha se etsoa 'me se ke ke sa fumanoa ka ho fetola sekurufu se le seng khahlanong le molekane ea seng a tsofetse. Li-screws tse peli lia hlahisoa, li fanoe, 'me li nkeloa sebaka e le para e tšoanang, 'me le tsona li lokela ho bolokoa le ho tšoaroa ka tsela eo.
