Kwintsimi eguqukayo nehlala itshintsha ye-extrusion yepayipi yeplastiki, ukuqonda umahluko phakathiisikrufu esinyeabakhupheli ngaphandle kwayeii-extruders eziphindwe kabini Ezi ntlobo zimbini zee-extruders zidlala indima ebalulekileyo kwinkqubo yokuvelisa, nganye ineempawu zayo kunye neenzuzo zayo.
Iisixhobo sokukhupha isikrufu esinye kudala iyinto ebalulekileyo kushishino. Yenzelwe ngokukodwa ukwenza iipolymers zibe yiplastiki kwaye zikhuphe. Xa kufikwa kwiimveliso zegranular, iyakhanya ngokwenene. Umzekelo, ekuvelisweni kwemibhobho yeplastiki eqhelekileyo, ii-screw extruders ezizi-single screw zihlala zikhethwa kakhulu. Zisebenza ngokuthatha izinto zepolymer ezizi-granular kwaye zinyibilike kancinci kwaye zixutywe ngokujikeleza kwe-screw enye ngaphakathi kwibharele eshushu. Le nkqubo iqinisekisa ukuhamba rhoqo kwezinto ezinyibilikisiweyo, ezithi emva koko zityhalelwe kwi-die ukuze zenze imo yombhobho oyifunayo.
Kwelinye icala,isixhobo sokukhupha izikrufu esiphindwe kabiniInika iseti eyahlukileyo yezakhono. Inobuchule ngakumbi ekuphatheni ukucubungula umgubo. Ngokukodwa, xa isebenza ngezinto ezixutyiweyo zePVC ezicoliweyo, ibonisa ukusebenza okumangalisayo. Ulwakhiwo lwezikrufu ezimbini luvumela ukuxubana okunzulu kunye nokwenza iplastiki ibe yiplastiki. Izikrufu ezibini zijikeleza ngendlela edibeneyo, zidala isiphumo sokucheba esidibanisa ngokupheleleyo izinto ezigudileyo. Oku kuluncedo ngakumbi kwiimeko apho kufuneka ukuxuba ngokuchanekileyo izongezo kunye nezizalisi kunye ne-polymer esisiseko.
I-China ivele njengeqela elibalulekileyo kwimarike yehlabathi yeemveliso zeplastiki ezikhupha izinto ezingafunekiyo. Njengoko inabavelisi abaninzi beemveliso zeplastiki ezikhupha izinto ezingafunekiyo kunye neefektri zoomatshini abakhupha izinto ezingafunekiyo, eli lizwe liphambili ekuveliseni izinto ezintsha kunye nemveliso. Phakathi kwazo, i-Blesson ivelele njengomvelisi ophambili weemveliso ze-china ezikhupha izinto ezingafunekiyo. Imigca yabo yemveliso yepayipi, equka zombini ubuchwepheshe bee-screw ezi-single kunye nee-double screw extruder, ifumene udumo ngomgangatho ophezulu kunye nokuthembeka.
I-screw extruder enye kwiseti eqhelekileyo yeplastiki yaseTshayina inika ubulula kunye nokusebenza kakuhle kweendleko. Kulula ukuyisebenzisa nokuyigcina, nto leyo eyenza ukuba ibe lukhetho oludumileyo kumashishini amaninzi amancinci ukuya kwaphakathi okuvelisa iipayipi. Nangona kunjalo, imida yayo iyacaca xa kujongwana neefomyula ezinzima okanye izixhobo ezifuna ukuxubana okubanzi.
Ngokwahlukileyo koko, i-double screw extruder, njengoko ibonwa kwimigca yemveliso yeepayipi eziphambili eTshayina, ibonelela ngokuxuba okuphuculweyo kunye nokudibanisa. Oku kubalulekile ekuveliseni iipayipi ezineempawu zoomatshini eziphezulu kunye nomgangatho ohambelanayo. Ukukwazi ukuphatha izinto zepowder ngokuthe ngqo kunika abavelisi ukuguquguquka ngakumbi ekufumaneni izinto eziluhlaza kunye nokwenza imixube eyenzelwe bona.
Umzekelo, kwiukuveliswa kwemibhobho yePVC esebenza kakuhleNgezongezo ezithile zokuqinisa ukuqina nokumelana, i-double screw extruder inokuqinisekisa ukusasazwa okufanayo kwezi zongezo kuyo yonke i-polymer matrix. Oku kubangela imibhobho enokumelana noxinzelelo olukhulu, utshintsho lobushushu, kunye noxinzelelo lokusingqongileyo.
Ukuqukumbela, zombini izikrufu ezizii-single screw kunye nezii-twin screw extruders zinendawo yazo efanelekileyo kushishino lokukhutshelwa kwemibhobho yeplastiki. Ukukhetha phakathi kwazo kuxhomekeke kwizinto ezahlukeneyo ezifana nohlobo lwezinto eziza kucutshungulwa, umgangatho wemveliso oyifunayo, kunye nomthamo wemveliso. E-China, abavelisi abanjengoBlesson bayaqhubeka nokuphucula nokuphucula obu buchwepheshe bokukhutshelwa kwemibhobho, beqhuba ukuqhubela phambili komgca wonke wemveliso yemibhobho yeplastiki. Njengoko ishishini liqhubeka, uphando olongezelelweyo kunye nophuhliso kulindeleke ukuba luvule amandla angakumbi kwezi matshini zibalulekileyo zokukhutshelwa kwemibhobho, okuvumela ukuveliswa kwemibhobho yeplastiki enobuchule ngakumbi nesemgangathweni ukuhlangabezana neemfuno ezihlala zikhula zamacandelo ahlukeneyo afana nokwakha, imibhobho yamanzi, kunye nezicelo zoshishino.
Ixesha leposi: Disemba-07-2024