Fokotsa Molding & Compression Molding

Blow molding ke ts'ebetso eo ka eona lingoloa li bopiloeng ka ho etsa lesela le qhibilihisitsoeng ho tlatsa sekoti sa hlobo se nang le sebopeho le boholo bo lakatsehang. Compression molding ke mokhoa oa khale ka ho fetisisa oa tlhahiso ea lihlahisoa tsa polymer, 'me o sebelisoa haholo-holo bakeng sa thermosets.

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Ho bopa ho foka

Blow molding ke ts'ebetso eo ka eona lingoloa li bopiloeng ka ho etsa lesela le qhibilihisitsoeng ho tlatsa sekoti se nang le sebopeho le boholo bo lakatsehang.Libotlolo tsa lino-mapholi le lino-mapholi tse ling lia bōptjoa.The tse peli tsa bohlokoa ka ho fetisisa tshebetso mefuta e fapaneng ya ke extrusion blowing le ente blow moulding.A extrusion blow moulding, an extruder pumps the melt through annular die to form annular tube or my parison with well deŽ ned and controlled dimensions.Parison e tlanngoe lipakeng tsa lihalofo tse peli tsa hlobo 'me e kentsoe ke khatello ea moea e ka hare ho nka sebopeho sa mokoti oa hlobo, oo hangata o pholileng.Qetellong, sehlooho se entsoeng solidiŽ es ka lebaka la ho pholile 'me hlobo e butsoe ho ntša sehlooho ntle le tšenyo.Ho itšetlehile ka botsitso ba mocheso oa thepa, ts'ebetso ea extrusion e ka ba e tsoelang pele kapa ea nakoana.Sistimi ea nakoana e ka sebelisa li-screw tse sebetsang joalo ka lipheleu, ka mokhoa o ts'oanang le oa ho bopa ente.

Ho bopa ha ente ke mehato e 'meli.Mokhahlelong oa pele, polasetiki e kenngoa ka har'a sekoti moo preform e bōpiloeng teng.Joale preform e fetisetsoa ho hlobo e otlang bakeng sa fiation.Ente e fana ka melemo ea taolo e nepahetseng ea li-dimensional, ho felisa likhechana le ho kenya likhoele pele li butsoe.Extrusion blow molding e ratoa bakeng sa lijana tse nang le bolelele bo holimo/diameter le lihlahisoa tse nang le meharo.

Polyethylene terephthalate kapa PET ke polima e sebelisoang ka ho fetisisa ho enteng ho phunya, bakeng sa lino tse nang le carbonate le libotlolo tsa metsi.Stretch blow molding e sebelisoa ho hlahisa libotlolo tsa PET tsa thepa e ntlafalitsoeng ea 'mele.Ts'ebetsong ena, ho otlolla ho etsa hore ho thehoe likristale tse nyane tsa lamellar.Likristale tsena li hlahisa lihlahisoa tse hlakileng le tse thata ho feta tse hlahisoang ntle le ho foka, tse nang le likristale tsa spherulitic.

Ho etsa compression

Ho bopa ha compression ke mokhoa oa khale ka ho fetisisa oa tlhahiso ea lihlahisoa tsa polymer, 'me o sebelisoa haholo bakeng sa thermosets.Ts'ebetsong ena motsoako o hatelloa ka har'a hlobo ke lipoleiti tse futhumetseng tsa mochine oa khatiso oa hydraulic.Ts'ebetso ena ho isa boholeng bo itseng e ts'oana le setempe sa sheet metal.Ho bopeha ka ente ea lipolymer ho nkile sebaka sa compression molding bakeng sa lipolymer tse ling, ka lebaka la melemo ea ho sebetsana le thepa le boiketsetso.Leha ho le joalo, ho bōptjoa ha khatello ho na le molemo oa ho sebetsana le li-polymer tse matlafalitsoeng.Li-fiber tse ngata haholo le li-fibre tse telele li ka kenyeletsoa lihlahisoa tse entsoeng ka khatello