Iingcingo, iintambo, iipayipi, iipayipi, kunye neeprofayili zezinye zezicelo ezimbalwa ze-PE. Izicelo zeepayipi ziqala kwiipayipi ezimnyama ezinobubanzi obungama-intshi angama-48 zeepayipi zemizi-mveliso kunye nezixeko ukuya kwiipayipi ezincinci ezityheli ezinqamlezileyo zegesi yendalo. Ukusetyenziswa kwepayipi enkulu enobubanzi obungenanto endaweni yemigca yenkunkuma kunye nemisele yemvula eyenziwe ngekhonkrithi kuyanda ngokukhawuleza.
I-Thermoforming kunye namaphepha
Ii-cooler ezininzi ezinkulu zepikiniki ziquka ii-liner ezifakwe i-thermoformed ezenziwe yi-PE, enika ukuqina, ukukhaphukhaphu, kunye nokuqina. Iifenders, ii-liner zetanki, ii-pan guards, ii-shipment crates, kunye neetanki zimizekelo yezinto ezongezelelweyo zephepha kunye nezinto ezifakwe i-thermoformed. Ii-mulch okanye ii-pool bottoms, ezixhomekeke kukuqina kwe-MDPE, ukumelana neekhemikhali, kunye nokungangeni kwamanzi, zizicelo ezimbini ezibalulekileyo nezikhula ngokukhawuleza zephepha.
Ukuvuthela iimbumba
I-United States ithengisa ngaphezu kwesinye kwisithathu semali yayoI-HDPEzokubumba nge-blow molding. Ziqala kwiifriji ezincinci, iifriji ezinkulu, iitanki zepetroli zeemoto, kunye neebhokisi ukuya kwiibhotile ze-bleach, ioyile yemoto, isepha, ubisi, kunye namanzi angashukumiyo. Iigreyidi ezifanayo zingasetyenziselwa usetyenziso lwephepha kunye ne-thermoforming kuba amandla okunyibilika, i-ES-CR, kunye nokuqina ziimpawu ezikhethekileyo zegreyidi zokubumba nge-blow molding.
inaliti
Izikhongozeli ezincinci (ezingaphantsi kwe-16oz) zihlala ziveliswa kusetyenziswa i-blow molding yokupakisha iishampu, izinto zokuthambisa, kunye namayeza kagqirha. Inzuzo yale ndlela kukuba iibhotile ezigqityiweyo zinqunyulwa ngokuzenzekelayo, ngokungafaniyo neenkqubo eziqhelekileyo ze-blow molding ezifuna imisebenzi emva kokugqitywa. Nangona ezinye iiklasi ze-MWD ezimxinwa zisetyenziselwa ukuphucula i-surface polish, iiklasi ze-MWD eziphakathi ukuya kububanzi zihlala zisetyenziswa.
ukubumba ngenaliti
Isinye kwisihlanu sezinto ezenziwe ekhayaI-HDPEisetyenziswa kwiindlela ezahlukeneyo ukusuka kwiitini ze-5-gsl ukuya kwiikomityi zeziselo ezinodonga oluncinci ezinokuphinda zisetyenziswe. Kukho iindlela eziphantsi zokunyibilika ezinobunzima kunye neendlela eziphezulu zokunyibilika ezinomatshini, kwaye iindlela zokubumba ngenaliti zihlala zine-melt index ye-5 ukuya kwi-10. Izinto ezixineneyo kunye nokupakishwa kokutya, iitini zokutya kunye nepeyinti eziqinileyo, ezihlala ixesha elide, kunye neendlela ezichasene kakhulu nokuqhekeka koxinzelelo lokusingqongileyo, ezifana neetini zenkunkuma ezingama-90-gallon kunye neetanki zepetroli ezincinci, zezinye zezinto ezisetyenziswa kwezi zinto.
ukujika ukubunjwa
Xa izinto zicutshungulwa kusetyenziswa obu buchwephesha, zihlala zityunyuzwa zibe ngumgubo zize zinyibilike zize zihambe kumjikelo wobushushu. I-Rotomolding isebenzisa iiklasi ze-PE ezidityanisiweyo nezinjongo ziqhelekileyo. Isalathisi sayo sokunyibilika sidla ngokuba phakathi kwe-3 ukuya kwi-8, kwaye uxinano lwayo oluqhelekileyo lwe-MDPE/I-HDPEidla ngokuba phakathi kwe-0.935 kunye ne-0.945g/CC kunye ne-MWD encinci, nto leyo enika imveliso impembelelo ephezulu kunye ne-warpage encinci. Amanqaku aphezulu e-MI aqhelekanga ukuba afaneleki kuba ayinayo impembelelo efunekayo yeempahla ezijikelezileyo kunye nokumelana nokuqhekeka koxinzelelo lokusingqongileyo.
Izicelo ze-rotomoulding esebenza kakuhle zisebenzisa iimpawu ezikhethekileyo zamanqanaba ayo adityanisiweyo ngamakhemikhali. La manqanaba anokumelana okubalaseleyo kokuqhekeka koxinzelelo lokusingqongileyo kunye nokuqina ngexesha lesigaba sokuqala somjikelo wokubumba xa ehamba kakuhle. Amelana nemozulu kunye nokukrweleka. Izikhongozeli ezinkulu eziqala kwiitanki zokugcina ezolimo ezingama-20,000-gallon ukuya kwiitanki zokugcina ezingama-500-gallon ezisetyenziselwa ukuthwala iikhemikhali ezahlukeneyo zifanelekile ngokugqibeleleyo kwi-PE edityanisiweyo.
ifilimu
Ukucubungula ifilimu eqhelekileyo okanye ukucubungula i-flat extrusion ngokuqhelekileyo kusetyenziswa ekucubungulweni kwefilimu ye-PE. Uninzi lwee-PE zisetyenziselwa iifilimu; ukhetho luquka i-linear low density PE (LLDPE) okanye i-general-purpose low density PE (LDPE). Xa kufuneka ukolulwa okukhulu kunye neempawu ezibalaseleyo zokuthintela, amanqanaba efilimu ye-HDPE adla ngokusetyenziswa. Umzekelo, ifilimu ye-HDPE isetyenziswa rhoqo kwiingxowa zevenkile ezinkulu, kwiipakethe zokutya, nakwiingxowa zemveliso.