Ngakolunye uhlangothi, izosebenza kakhulu, futhi iphishekele njalo ukuphelela komsebenzi womkhiqizo kanye nokwandiswa kwempilo yesevisi;Ngakolunye uhlangothi, ngenkathi sithuthukisa ikhwalithi yemikhiqizo, sizophishekela ukunciphisa kakhulu izindleko zezinto ezingavuthiwe nezindleko zokusebenza, ukuze sithole izinzuzo ezinkulu.
Imikhiqizo yokubumba igalelo eliphakathi nendawo
Izimiso ezintathu eziyisisekelo kufanele zicatshangelwe ekwakhiweni kwemikhiqizo yokubumba igalelo:
1) Zama ukuhlangabezana nemisebenzi ehlukahlukene kanye nokusetshenziswa kwemikhiqizo yokubumba igalelo elingenalutho;
2) Ifomula yempahla eluhlaza yepulasitiki inokusebenza okuhle kokucubungula;
3) Yehlisa izindleko zokukhiqiza ngokuklama nokuthuthuka.
Ngesikhathi esifanayo, ngenxa yokwanda kwemikhiqizo yokubumba i-extrusion blow kanye nohla lokusekela lobunjiniyela, ukusebenza kwemikhiqizo yokubumba igalelo kubeka phambili izidingo zobuchwepheshe eziphakeme.Okufana nemoto, imoto, imboni yezitimela ezihamba ngesivinini esiphezulu, izindiza, indiza, ukuhamba, imishini, i-electronics, amakhemikhali, izinto, ukupakishwa kwezidakamizwa, ukupakishwa kokudla nesiphuzo, imindeni yansuku zonke, ezolimo, isicelo sobunjiniyela, umzimba ontantayo nezinye izimboni eziningi ezisekelayo. vuthela imikhiqizo yokubumba nokunye, Amandla aphezulu, ukuqina okuphezulu, ukunemba okuphezulu, impilo ende kanye nokumelana nokushisa okuhle kuyadingeka emikhiqizweni yokubumba i-plastic blowing.Ngakho-ke, ukuguqulwa kwale mikhiqizo yokubumba i- blow kubaluleke kakhulu.
Izindlela zokuguqulwa kwepulasitiki ikakhulukazi zihlanganisa ukuguqulwa komzimba nokuguqulwa kwamakhemikhali.Ukuguqulwa kwamakhemikhali kubhekisela ezindleleni zokuguqula ezishintsha izinhlobo nezinhlanganisela zama-athomu noma amaqembu ochungechungeni lwemolekyuli yama-polymer ngezindlela zamakhemikhali.Amapulasitiki angakha izinto ezintsha ze-polymer ezithile nge-block copolymerization, i-graft copolymerization, ukusabela kokuxhumanisa, noma ngokwethula amaqembu amasha asebenzayo.Ukuguqulwa kwamakhemikhali kungenza umkhiqizo uthole imisebenzi emisha noma izakhiwo ezingcono zomzimba namakhemikhali.
Ekusebenzeni kwangempela kokuguqulwa kwefomula yemikhiqizo yokubumba i-extrusion blow, ubuchwepheshe bokuguqula umzimba buvame ukusetshenziswa kunobuchwepheshe bokuguqula amakhemikhali.Ubuchwepheshe bokuguqulwa komzimba bemikhiqizo yokubumba i-extrusion blow ngokuvamile busetshenziswa ngalezi zindlela ezilandelayo: ① ukugcwalisa ukuguqulwa;② Ukuguqulwa kokuhlanganisa;③ Ukuguqulwa okuthuthukisiwe;(4) ukuguqulwa kokuqina;(5) ukuguqulwa kwe-nano-composite;⑥ Ukuguqulwa okusebenzayo nokunye.
1. Ubuchwepheshe bokubunjwa kwemikhiqizo yokubumba evame ukusetshenziswa
1) 25L wefomula yebhakede lepulasitiki, bheka Ithebula 1.
Ifomula yebhakede lepulasitiki elingu-25L
Kungabonakala kufomula ekuThebula 1 ukuthi izinhlobo ezimbili ze-HDPE zisetshenziswa kufomula, futhi amandla, ubulukhuni kanye nokuqina kwemikhiqizo ebunjwe ngokushaywa kungaqinisekiswa ukuze kuhlangatshezwane nezidingo eziyisisekelo zamabhakede epulasitiki angu-25L.
Izithako ezimbili eziyinhloko kufomula zicushwe ngesigamu.Ekusetshenzisweni okungokoqobo, ingxenye yezithako eziyinhloko kufomula ingalungiswa ngokuya ngezidingo zokusebenza ezahlukene.Ngesikhathi esifanayo, ukukhethwa komkhiqizo wezithako eziyinhloko kungabuye kukhethwe ngokuvumelana nesimo esithile sokuhlinzekwa kwemakethe.
2) Idizayini yokwakhiwa komgqomo wokufaka wepulasitiki ongenalutho Wamakhemikhali ayingozi:
Okufana nokuthi: ukukhiqizwa kwesilingo se-25L yesigubhu sokupakisha esitsheni, isisindo sesigubhu singama-1800g.Isetshenziselwa ukuqukatha i-nitric acid egxilile engu-68.2%.Ukumelana nesiqukathi se-HDPE esihlanzekile ku-nitric acid egxilile akwanele, kodwa ukumelana kwe-HDPE ku-nitric acid egxilile kungathuthukiswa kakhulu ngokwengeza isilungisi se-polymer esifanele.Okusho ukuthi, i-EVA ne-LC zisetshenziselwa ukuguqula i-HDPE ukukhiqiza isitsha sokupakisha se-nitric acid esigxilisiwe.Ifomula yokuhlola ikhonjiswe kuThebula 2.
Ifomula yomphongolo wokupakisha wepulasitiki ongenalutho wamakhemikhali ayingozi
Kuthebula 2, i-HDPE ithi HHM5205, futhi izinga lokuncibilika lokuncibilika i-MFI=0.35g/10min.I-EVA 560, izinga lokuncibilika lokuncibilika kwe-MFI= 3.5g /10min, ukuminyana =0.93, okuqukethwe kwe-VA 14%;I-Low Molecular modifier LC, eyenziwe e-China, ibanga lezimboni.Imiphumela yokuhlolwa kwemigqomo yokupakisha elungiswe yilawa mafomula amathathu angenhla ikhonjisiwe kuThebula 3. Lezi zindlela ezintathu ezingenhla zonke zifaneleke ngokuhlola ukupakisha okuvamile.Kodwa-ke, ngokuqukethe i-nitric acid egxilile, ifomula inyanga engu-1 ngemva kokuphuka, ngakho-ke ayifanele ukuqukatha i-nitric acid egxilile;I-Formula 2 izinyanga ezingu-6 ngemuva kokuphulwa komphongolo wokuhlolwa kwe-drop, ingafaneleki, nakuba ezinye izivivinyo zidlulile, uma isetshenziselwa ukuqukatha i-nitric acid egxilile iyingozi, akunconywa ukuyisebenzisa;
Ubuchwepheshe bokubumba umkhiqizo wokuvuthela ongenalutho olumaphakathi nendawo
I-Formula 3 Njengoba kukhonjisiwe kuThebula 3-18, zonke izivivinyo zafaneleka ngemva kwesigamu sonyaka se-nitric acid egxilile.
Sengiphetha, ngemva kokwengeza i-EVA ne-LC ku-HDPE, ukumelana kwe-HDPE eguquliwe ku-nitric acid egxilile kuyathuthukiswa ngokusobala, futhi ingasetshenziswa ukwenza umgqomo wokupakisha we-nitric acid (68.4%).
3) Itafula lefomula lepulasitiki lezihlalo zepulasitiki zangaphandle.(Bheka ithebula 4)
Qaphela: 7000F kanye no-6098 kufomula kuThebula 4 kukhona i-hdPe enesisindo samangqamuzana aphezulu.I-18D iyi-polyethylene ene-low density.
I-EVA isetshenziswa kakhulu njengosizo lokucubungula kule fomula ukuze kuthuthukiswe ikhwalithi yokubukeka kwemikhiqizo ebunjiwe futhi kuthuthukise ukumelana nomthelela.Futhi inokumelana okude nesikhathi sokuqhekeka kokucindezeleka kwemvelo.
4) Ukuze uthole iresiphi yeziqukathi ezibunjiwe ezingu-50-100L, bheka Ithebula 5.
Imodeli yokusetshenziswa ihlobene netafula lefomula lepulasitiki lezihlalo zepulasitiki zangaphandle
Ifomula kuThebula lesi-5 ingalungiswa ngokuvumelana nokusetshenziswa kwangempela.
Kufomula ekuThebula lesi-5, ngokwanda kwengxenye yezinto zokusetshenziswa zepulasitiki ezinesisindo esithe xaxa samangqamuzana, amandla, ukuqina nokumelana nezinga lokushisa kwemikhiqizo kuyathuthukiswa, futhi isikhathi sokumelana nokuqhekeka kwemvelo siyandiswa.Abakhiqizi bomkhiqizo bangalungisa izilinganiso ezihlukene zezinto ezingavuthiwe zepulasitiki ngokwezidingo zemikhiqizo ehlukene ukuze bahlangabezane nezidingo ezahlukene zobuchwepheshe.
5) Izitsha ezibunjiwe ze-100-220L
Ngenxa yokuthi isisindo samangqamuzana esivamile esivamile se-polyethylene resin asiphezulu, njenge-HHM5502 resin iyi-ethylene ehlanganisiwe ne-hexene copolymer enesisindo samangqamuzana esingaba ngu-150,000, nakuba izici zayo zokukhanda, ukuqina nokuqina kobuso kuhle, Kodwa ukumelana nokuqhekeka kokucindezeleka kwemvelo namandla omthelela ampofu, amandla okuncibilika awekho phezulu, futhi into elengayo ibucayi enqubweni ye-extrusion billet.Uma i-resin ikhiqiza i-200L, isisindo se-net 10.5kg yepulasitiki ye-VAT ngokwezinga likazwelonke lokuhlolwa kokuwa, kuzoba khona ukuphuka.Kuyabonakala ukuthi i-resin enesisindo esiphansi samangqamuzana empeleni ayifanele ukukhiqizwa kwemiphongolo yepulasitiki emikhulu engaphezu kuka-100 ~ 200L.Ukusebenzisa i-resin ye-HMWHDPE enesisindo samangqamuzana esihlobene esingaphezu kwezinkulungwane ezingama-250 zokubunjwa kwebhakede elikhulu elingaphezu kuka-200L ezimweni zokuhlola ezifanayo njengokuhlolwa kokuwa, ngokuvamile akwenzeki ukuphuka, ngesikhathi esifanayo ukufana kodonga lomphongolo kuye kwaba khona. ithuthukiswe kakhulu, ukumelana nebhakede elikhulu kukhono lokuqhekeka kwemvelo kuphindwe kabili.Ngakho-ke, lapho uklama ifomula ye-100-220 amalitha emgqonyeni omkhulu wepulasitiki ongenalutho, isisindo samangqamuzana esihlobene esingaphezu kuka-250,000 kufanele sibhekwe njengenkomba yokuqala, kulandelwa ukuminyana kwe-resin.Ukuzijwayeza kufakazele ukuthi, Lapho ukuminyana kwe-resin kububanzi obungu-0.945 ~ 0.955g/cm 3, ukumelana nokuqina nokucindezeleka kokuqhekeka kwesisindo samangqamuzana OKUPHEZULU-UKUMINA we-polyethylene resin imikhiqizo ilinganiselwe.
Emkhiqizweni wezimboni, lapho ukumelana komthelela kanye nokumelana nokucindezeleka kokuqhekeka kwemikhiqizo kufuna (njengethangi likaphethiloli, njll.), i-resin ene-density ye-0.945g/cm 3 ivame ukusetshenziswa njengento eluhlaza;Okwesibili yizindawo zokucubungula zokulula okuhlobene.
Namuhla, amazwe amaningi aklama futhi akhiqize izinto zokusetshenziswa ezikhethekile zamabhakede amakhulu epulasitiki.Isisindo sayo samangqamuzana, izinga lokuncibilika kokugeleza kanye nokuminyana okuhlobene kulungele ukwenza amabhakede amakhulu epulasitiki angenalutho.
Ngo-200 L double L ring ukukhiqizwa ifomula emgqonyeni wephakeji eyingozi, isipiliyoni sokukhiqiza sokubumba sesikhathi eside sibonise ukuthi usebenzisa amamaki ahlukahlukene wesisindo samangqamuzana aphezulu we-polyethylene yepulasitiki yokuhlanganiswa kwezinto zokusetshenziswa kwefomula yokukhiqiza, ikhwalithi yomkhiqizo wayo ingcono kunepulasitiki eyodwa. Ukuqina kokukhiqizwa kwefomula yezinto zokusetshenziswa kanye nokunye ukusebenza kuzothuthuka kakhulu, le mboni yemikhiqizo yephakeji eyingozi ifaka ukubaluleka okukhulu, Ukuze kuncishiswe ukulahleka kokukhiqiza okubangelwa impahla eluhlaza yepulasitiki eyodwa.Ngaphezu kwalokho, kufanelekile ukukhumbuza ukuthi ngenxa yezidingo ezikhethekile zokusetshenziswa kwezigubhu ze-200L indandatho ephindwe kabili ye-L, kuphethwa ngokuhlangenwe nakho okuningi okusebenzayo ukuthi: Ungafaki ngobumpumputhe ekubumbeni okungenalutho okungenalutho kwezinto zokusetshenziswa zepulasitiki ezingezayo. amaminerali masterbatch ukunciphisa izindleko noma ukuthuthukisa ubulukhuni, noma umthelela omkhulu izinga imikhiqizo, ikakhulukazi uketshezi eziyingozi izimpahla ukupakisha imiphongolo, ikhwalithi imikhiqizo kuyoba nzima ukuvikela ngokugcwele, kule iresiphi ukuguqulwa ubuchwepheshe kusamele kuqhubeke. ucwaningo nentuthuko.
Imikhiqizo yokubumba i-Extrusion ishaya kakhulu, ukusetshenziswa kwezimo kuyahlukahluka, ukusetshenziswa kwezinto ezingavuthiwe zepulasitiki, izinhlobo, izinhlobo nazo ziningi, kusukela eqinisweni lokukhiqiza, abakhiqizi bokubumba badinga ukuklama nokuthuthukisa ifomula yomkhiqizo ngamunye. ngokwezici zabo zomkhiqizo, ukuze bathole imiphumela engcono.Ubuchwepheshe befomula evamile eyethulwe ngenhla kuphela ifomula evamile yeminye imikhiqizo yokubumba igalelo elivamile, futhi kuphakanyiswa ukuthi isetshenziselwe ireferensi ekukhiqizeni okuthile kwemikhiqizo yokubumba igalelo.
Isikhathi sokuthumela: Oct-28-2021