Ukubumba ukuvuthela yinkqubo apho amanqaku abunjwa ngokubunjwa kwentlaka enyibilikisiweyo ukuzalisa umngxuma wokungunda onemilo efunekayo kunye nemilinganiselo.
Ukubumba ukuvuthela
Ukubumba ukuvuthela yinkqubo apho amanqaku abunjwa ngokwenziwa kwentlaka enyibilikisiweyo ukuzalisa umngxuma wokungunda onemilo efunekayo kunye nemilinganiselo.Iibhotile zeziselo ezithambileyo kunye nolunye ulwelo ziyabunjwa.Ezona nkqubo zimbini zibalulekileyo ezahlukeneyo kukubumba ivuthela extrusion kunye nenaliti ivuthela ekubumbeni. Kwi-extruder blowulding, i extruder impompo inyibilika nge annular die ukwenza ityhubhu etyhidiweyo okanye i-parison ene-deŽ ned kunye nemilinganiselo elawulwayo.I-parison ibotshelelwe phakathi kweziqingatha ezibini zokungunda kwaye ifakwe uxinzelelo lomoya lwangaphakathi ukuze ithathe ubume bomgodi wokungunda, odla ngokupholiswa.Ekugqibeleni, inqaku elibunjiweyo i-solidiŽ es njengesiphumo sokupholisa kwaye isikhunta sivulwa ukukhupha inqaku ngaphandle komonakalo.Ngokuxhomekeke ekuzinzeni kwe-thermal yezinto eziphathekayo, inkqubo ye-extrusion ingaba yinto eqhubekayo okanye ephakathi.Iinkqubo zethutyana zinokusebenzisa izikrufu ezisebenza njengeenkunzi zeegusha, ngendlela efanayo naxa kusenziwa inaliti.
Isitofu sokuvuthela ukubumba yinkqubo yezigaba ezimbini.Kwinqanaba lokuqala, iplastiki itofwa kumngxuma apho i-preform ibunjwe khona.I-preform igqithiselwa kwi-mold yokuvuthela kwi-fiation.Ukubumba isitofu sokuvuthela kunika iingenelo zolawulo olululo oluchanekileyo, ukupheliswa kwezinto ezilahliweyo kunye nokubunjwa ngaphakathi kwemisonto phambi kokuvuthela.Ukubumba ukuvuthela okukhutshiweyo kukhethwa kwizikhongozeli ezinobude obuphezulu/ubume bomlinganiselo kunye neemveliso ezinemiqheba.
I-Polyethylene terephthalate okanye i-PET yeyona polymer isetyenziswa kakhulu kwi-injection blow blowing, kwiziselo ze-carbonated kunye neebhotile zamanzi.Ukubumba i-Stretch blow kusetyenziselwa ukuvelisa iibhotile ze-PET zeempawu eziphuculweyo zomzimba.Kule nkqubo, ukunweba kubangela ukubunjwa kweekristale ezincinci ze-lamellar.Ezi kristale zikhokelela kwiimveliso ezicacileyo kunye nezomelele kunezo ziveliswa ngaphandle kokuvuthela, ezineekristale ze-spherulitic.
Ukubumba ukunyanzeliswa
Ukubumba ukunyanzeliswa yeyona ndlela indala yokuvelisa iimveliso zepolymer, kwaye isetyenziswa ikakhulu kwi-thermosets.Kule nkqubo i-compound icinezelwe kwi-mold yi-platens evuthayo ye-hydraulic press.Le nkqubo ngokomlinganiselo othile iyafana nesitampu sentsimbi.Isitofu sokubumba iipolymers sithathe indawo yokubumba ukunyanzeliswa kwezinye iipholima, ngenxa yeenzuzo ekuphatheni izixhobo kunye nokuzenzekela.Nangona kunjalo, ukunyanzeliswa kwengcinezelo kunenzuzo ekuqhutyweni kweepolymers eziqiniweyo.Ngenxa yamanqanaba athobekileyo okuguqulwa kunye noxinzelelo olubandakanyekayo ekubunjweni koxinzelelo, iifayili zokuqinisa awonakali.Uxinzelelo lwefayibha ephezulu kakhulu kunye neefibers ezinde zinokuqukwa kwiimveliso ezibunjiweyo zoxinzelelo
Ixesha lokuthumela: Jan-01-2017