iimveliso

Isitofu se-HDPE sokubumba ikhreyithi,
HDPE Yekhreyithi, Ukubumba inaliti ye-HDPE,

Ikhreyiti yePlastiki yenziwe nge-high density polyethylene (HDPE) yokubumba inaliti yokudityaniswa kokuqala.
I-Crate ibunjwe ngemathiriyeli ekhethekileyo ye-HDPE ukufezekisa ukuqina okuphezulu.Isantya sokunyibilika sezinto ezikhethekileyo yi-3.6-4.5 g / imizuzu eyi-10, uxinzelelo lungaphezulu kwe-25 Pa, amandla okuqina angaphezulu kwe-60% kwaye amandla okunciphisa angaphezulu kwe-40 Pa. Ngokuqhelekileyo izinto ze-HDPE zine-branching encinci, kodwa izinto ezintsha ezikhethekileyo. esetyenziselwa iikhreyithi inika amandla e-intermolecular eyomeleleyo kunye namandla okuqina kune-LDPE.Umphezulu wayo unzima kwaye ucacile, kwaye unokumelana nokushisa okuphezulu (120 C / 248 F ixesha elifutshane, 110 C / 230 F ngokuqhubekayo), ukuze ufikelele kwimfuno yokuqina.Kufuneka kuqatshelwe ukuba i-HDPE, ngokungafani ne-polypropylene, ayikwazi ukumelana noxinzelelo oluphezulu oluqhelekileyo.

Isitofu sokubumba
Isitofu sokubumba yinkqubo yokwenza iplastiki ebandakanya ukutofa imathiriyeli ekrwada yeplastiki etyhidiweyo kwigumbi elivaliweyo okanye ukungunda.Le nkqubo ineenkqubo ezintathu eziphambili:

Ukugaya kunye nokufudumeza iplastiki ide ihambe phantsi koxinzelelo.
Ukutofa iplastiki ngaphakathi kwesikhunta kwaye uyivumele ukuba iphole.
Ukuvula isikhunta ukukhupha isikhongozeli seplastiki.
I-extruder yohlobo lwe-screw ephindaphindayo isetyenziswa ikakhulu kushishino ukwenza iplastiki yomxube;kukho ukuxuba okuphindaphindiweyo kunye nokuxova i-screw type extruder.Xa iplastiki (izinto eziphathekayo) ilungele ukujova, njengoko i-screw ihamba, ikhupha iplastiki ngaphandle kwe-extruder kunye ne-mold.

Ukwenza imilo efunwa ngumthengi, kukho isikhunta esilungiselelwe kunye neenkcukacha eziqulethe imo ethile.Ngokuqhelekileyo iqulethe iinxalenye ezimbini okanye iziqingatha ezineempawu ezifanayo.Enye inawo amandla okushukuma okanye ihlala ihleli ngelixa elinye ilungu lokungunda linokuhamba.Emva kokubumba, esinye isiqingatha sinokuhamba ngaloo ndlela ukukhulula imveliso kwi-mold kwifomu engaguqukiyo.Umngundo uneendawo ezininzi zokuvula okanye imijelo.Ezi zisetyenziselwa ukwazisa iplastiki kubumba, umoya okhupha umoya, kwaye uvumele iplastiki ukuba iphume kumngundo.

Isitofu sokubumba sithintele imveliso xa kufikwa kwimveliso yezikhongozeli ezisecaleni okanye iikhreyithi.Iibhafu, iipeyile, iikomityi, izitya zokutya, nezitya yimizekelo.Ngokwayo, ukubumba inaliti akufanelanga ukuvelisa iimveliso ezivaliweyo, ezingenanto ezifana neebhotile zeplastiki yiyo loo nto ikufanele ukuveliswa kwamakhreyithi avulekileyo.Ukuvelisa ezi mveliso, igesi ye-inert isetyenziswa.Oku kusetyenziswa kuba kuya kuphelisa ukusabela okunokuthi kwenzeke kwi-mold xa inkqubo ihamba.Oku kungeniswa kwisingundo esizaliswe ngokuyinxenye ngeplastiki etyhidiweyo.Oku kutyhala iplastiki kumphezulu wokungunda ivelisa indawo enomgongxo.Le nkqubo ibizwa ngokuba yi-gas-assisted injection molding.

Isicelo

Ibakala lokubumba inaliti ye-HDPE lisetyenziselwa ukwenza izikhongozeli ezinokuphinda zisetyenziswe, ezifana neekesi zebhiya, iikesi zeziselo, iikesi zokutya, iikesi zemifuno kunye neekesi zeqanda kwaye zinokusetyenziselwa ukwenza iitreyi zeplastiki, izikhongozeli zempahla, izixhobo zombane zasekhaya, ukusetyenziswa kwempahla yemihla ngemihla kunye nokubhityile- izitya zokutya zodonga.Isenokusetyenziswa nasekuveliseni imigqomo esetyenziswa kwimizi-mveliso, imigqomo yenkunkuma kunye nezinto zokudlala.Ngokusebenzisa inkqubo ye-extrusion kunye ne-compression molding kunye ne-injection molding, ingasetyenziselwa ukuvelisa ii-caps zamanzi ahlambulukileyo, amanzi amaminerali, isiselo seti kunye neebhotile zesiselo sejusi.