Mokhoa oa ho bopa ente ea Acrylic

Mokhoa oa ho bopa ente ea Acrylic

Lebitso la lik'hemik'hale la acrylic ke polymethylmethacrylate (PMMA ka Senyesemane).Ka lebaka la mefokolo ea PMMA joalo ka boima bo tlase ba bokaholimo, ho phunya habonolo, ho hanyetsa tšusumetso e tlase, le ts'ebetso e mpe ea phallo ea ho bopa, liphetoho tsa PMMA li hlahile ka mor'a tse ling.Joalo ka copolymerization ea methyl methacrylate ka styrene le butadiene, ho kopanngoa ha PMMA le PC, joalo-joalo.

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Boitšoaro ba phallo eaPMMAe mpe ho feta ea PS le ABS, 'me viscosity e qhibilihisitsoeng e na le maikutlo a ho fetoha ha mocheso.Nakong ea ts'ebetso ea ho bopa, viscosity ea qhibiliha e fetoloa haholo ho latela mocheso oa ente.PMMA ke polymer ea amorphous e nang le mocheso o qhibilihang o fetang 160°C le mocheso oa ho bola oa 270°C.

1. Ho lahla polasetiki

PMMA e na le tekanyo e itseng ea ho kenngoa ha metsi, ka tekanyo ea ho monya metsi ea 0.3-0.4%.Ho etsa ente ho hloka mongobo o ka tlase ho 0.1%, hangata 0.04%.Ho ba teng ha mongobo ho etsa hore ho be le li-bubble, maqhubu a moea, le ho fokotsa pepenene ho qhibiliha.Kahoo e hloka ho omisoa.Mocheso oa ho omisa ke 80-90'me nako ea ho omisa e feta lihora tse 3.Lisebelisoa tse tsosolositsoeng li ka sebelisoa ka 100% maemong a mang.Chelete ea sebele e itšetlehile ka litlhoko tsa boleng, hangata ho feta 30%.Lisebelisoa tse tsosolositsoeng li tlameha ho qojoa ho silafatsoa, ​​ho seng joalo li tla ama pepeneneng le thepa ea sehlahisoa se felileng.

2. Khetho ea mochine oa ho bopa ente

PMMA ha e na litlhoko tse khethehileng tsa mochini oa ho bopa ente.Ka lebaka la viscosity ea eona e phahameng ea ho qhibiliha, e hloka groove e tebileng le lesoba le leholoanyane la nozzle.Haeba litlhoko tsa matla tsa sehlahisoa li phahame, sekoti se nang le karolo e kholoanyane se lokela ho sebelisoa bakeng sa polasetiki e tlaase ea mocheso.Ho feta moo, PMMA e tlameha ho bolokoa ka har'a hopper e omeletseng.

3. Moqapi oa hlobo le heke

Mocheso oa hlobo o ka ba 60-80.Bophara ba mocha o moholo o lokela ho lumellana le taper e ka hare.Nako e nepahetseng ke 5° ho ea ho 7°.Haeba u batla ho kenya hlobo ea 4mm kapa lihlahisoa tse ka holimo, angle e lokela ho ba 7° 'me bophara ba mocha o moholo e lokela ho ba 8 ho isa ho 8°.10mm, bolelele ba heke ka kakaretso ha boa lokela ho feta 50mm.Bakeng sa lihlahisoa tse nang le botenya ba lebota ka tlase ho 4mm, bophara ba kanale ea phallo e lokela ho ba 6-8mm

Bakeng sa lihlahisoa tse nang le botenya ba lerako ho feta 4mm, bophara ba semathi se lokela ho ba 8-12mm.Botebo ba liheke tse tšekaletseng, tse bōpehileng joaloka fene le tse theohileng li lokela ho ba 0.7 ho isa ho 0.9t (t ke botenya ba lebota la sehlahisoa).Bophara ba heke ea nale e lokela ho ba 0.8 ho 2mm;boholo bo nyane bo lokela ho khethoa bakeng sa viscosity e tlase.

Likoti tse tloaelehileng tsa moea li ka har'a botebo ba 0.05, bophara ba 6 mm, 'me sebaka sa marang-rang se pakeng tsa 30."-1° 'me karolo ea cavity e pakeng tsa 35"-1°30°.

4. Qhibiliha mocheso

E ka lekanyetsoa ka mokhoa oa ente ea moea: ho tloha ho 210ho ea ho 270, ho itšetlehile ka boitsebiso bo fanoeng ke mofani oa thepa.

Tsoa setulong se ka morao, etsa hore mochini oa ente e bopehileng e tlohe mocheng o ka sehloohong oa li-channel, ebe o etsa ka letsoho ho etsa ente ea polasetiki, e leng ho bopa ente ea moea.

5. Mocheso oa ente

Ente e potlakileng e ka sebelisoa, empa ho qoba khatello e phahameng ea ka hare, ho molemo ho sebelisa ente ea mekhahlelo e mengata, e kang butle-butle-e liehang, joalo-joalo Ha u kenya likarolo tse teteaneng, sebelisa lebelo le liehang.

6. Nako ea bolulo

Haeba mocheso o le 260°C, nako ea bolulo e ke ke ea feta metsotso e 10.Haeba mocheso ke 270°C, nako ea bolulo e ke ke ea feta metsotso e 8.

ZAOGE Film Crushere loketse bakeng sa ho silakanya lisebelisoa tse sa tšoaneng tse bonolo le tse thata tse nang le botenya ba 0.02 ~ 5MM, joalo ka lifilimi tsa PP/PE/PVC/PS/GPPS/PMMA, lipampiri le lipoleiti tse sebelisoang linthong tsa ho ngola, ho paka le liindasteri tse ling.

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E ka sebelisoa ho bokella, ho pshatla le ho fetisa lisebelisoa tse senyehileng tse hlahisoang ke li-extruder, li-laminator, mechini ea maqephe le metjhini ea poleiti.Mohlala, lisebelisoa tse pshatlehileng li tsamaisoa ke fene e fetisang ka phala ho ea sebakeng se arolang leholiotsoana, ebe li sutumelletsoa ka har'a sekoti sa extruder screw feed bakeng sa ho kopanya ka boiketsetso le lisebelisoa tse ncha, kahoo ho fihlela ts'ireletso le ts'ebeliso ea tikoloho hanghang.


Nako ea poso: Jul-01-2024