Mawaya, zingwe, mapaipi, mapaipi, ndi mbiri ndi ntchito zochepa chabe za PE. Kufunsira kwa mapaipi kumachokera ku mapaipi akuda okhala ndi mipanda ya mainchesi 48 mpaka ma mapaipi amafuta amafuta achilengedwe. Kugwiritsiridwa ntchito kwa chitoliro chachikulu chokhala ndi dzenje lalikulu m'malo mwa mizere ya ngalande ndi ngalande zamphepo zopangidwa ndi konkriti kukukulirakulira.
Thermoforming ndi mapepala
Zozizira zambiri zazikulu zamapikiniki zimaphatikizapo ma liner opangidwa ndi thermoformed opangidwa ndi PE, omwe amapereka kulimba, kupepuka, komanso kulimba. Zotchingira, zomangira akasinja, alonda apapan, mabokosi otumizira, ndi akasinja ndi zitsanzo za mapepala owonjezera ndi zinthu zotenthetsera. Mulch kapena dziwe bottoms, zomwe zimadalira kulimba kwa MDPE, kukana kwa mankhwala, ndi kusawotchera, ndi ntchito ziwiri zofunika komanso zomwe zikukulirakulira mwachangu.
Kuwomba nkhungu
United States imagulitsa zoposa gawo limodzi mwa magawo atatu a zakeZithunzi za HDPEkwa kuwombera mphamvu. Zimayambira mafiriji ang'onoang'ono, mafiriji akuluakulu, matanki amafuta agalimoto, ndi zitini mpaka mabotolo a bulichi, mafuta agalimoto, zotsukira, mkaka, ndi madzi opumira. Makalasi ofananirako amatha kugwiritsidwa ntchito pamapepala ndi ma thermoforming popeza kusungunuka kwamphamvu, ES-CR, ndi kulimba kwake ndizizindikiro zapadera zamakalasi owumba.
jekeseni
Zotengera zing'onozing'ono (zosakwana 16oz) zimapangidwa nthawi zambiri pogwiritsa ntchito kupukuta kwa ma shampoos, zodzoladzola, ndi mankhwala omwe amaperekedwa ndi dokotala. Ubwino wa njirayi ndikuti mabotolo omalizidwa amangodulidwa okha, mosiyana ndi njira zowomba zomwe zimafunikira ntchito zomaliza. Ngakhale magiredi ena opapatiza a MWD amagwiritsidwa ntchito kukweza kupukuta pamwamba, ma MWD apakatikati mpaka otakata nthawi zambiri amagwiritsidwa ntchito.
jekeseni akamaumba
Gawo limodzi mwa magawo asanu mwazinthu zopangidwa kunyumbaZithunzi za HDPEimagwiritsidwa ntchito pamakina oyambira 5-gsl mpaka makapu akumwa omwe amatha kugwiritsidwanso ntchito. Pali magiredi otsika amadzimadzi okhala ndi kulimba komanso magiredi apamwamba amadzimadzi okhala ndi machinability, ndi magiredi opangira jakisoni nthawi zambiri amakhala ndi index yosungunuka ya 5 mpaka 10. Zinthu zokhala ndi mipanda yopyapyala komanso kulongedza zakudya, chakudya cholimba, chokhalitsa komanso zitini zopaka utoto, komanso kugwiritsa ntchito mwapadera. kukana kusweka kwa kupsinjika kwa chilengedwe, zitini zotayira magalo 90 ndi matanki ang'onoang'ono amafuta agalimoto, ndi zina zomwe zimagwiritsidwa ntchito pazinthu izi.
kutembenuza kuumba
Zida zikakonzedwa pogwiritsa ntchito ukadaulo uwu, nthawi zambiri zimaphwanyidwa kukhala ufa kenako zimasungunuka ndikuyenda mozungulira matenthedwe. Rotomolding imagwiritsa ntchito makalasi ophatikizika komanso okhazikika a PE. Mlozera wake wosungunuka umachokera ku 3 mpaka 8, ndipo kachulukidwe kake ka MDPE/Zithunzi za HDPEnthawi zambiri imakhala pakati pa 0.935 ndi 0.945g/CC yokhala ndi MWD yopapatiza, zomwe zimapangitsa kuti mankhwalawa akhale ndi mphamvu zambiri komanso tsamba laling'ono lankhondo. Magiredi apamwamba a MI nthawi zambiri sakhala oyenerera chifukwa alibe zomwe zimafunikira kuti katundu wa rotomold akhudzidwe komanso kukana kupsinjika kwa chilengedwe.
Mapulogalamu a rotomoulding apamwamba amagwiritsa ntchito mikhalidwe yapadera yamakalasi ake osakanikirana ndi mankhwala. Magiredi awa ali ndi kulimba kwamphamvu kwa chilengedwe komanso kulimba mtima pa gawo loyamba la kuzungulira kwa kuumba akamayenda bwino. kugonjetsedwa ndi nyengo ndi ma abrasion. Zotengera zazikulu kuyambira matanki osungira 20,000-gallons mpaka matanki osungira 500-gallon omwe amagwiritsidwa ntchito kunyamula mankhwala osiyanasiyana ndi oyenera kuphatikizika kwa PE.
kanema
Kukonza filimu yowombedwa mwachizolowezi kapena kutulutsa kwamtundu wathyathyathya kumagwiritsidwa ntchito pokonza filimu ya PE. Ma PE ambiri amagwiritsidwa ntchito ngati mafilimu; zosankha zikuphatikiza linear low density PE (LLDPE) kapena general-purpose low density PE (LDPE). Pakafunika kutambasula kwakukulu komanso zotchinga zabwino kwambiri, magiredi amakanema a HDPE nthawi zambiri amagwiritsidwa ntchito. Mwachitsanzo, filimu ya HDPE imagwiritsidwa ntchito nthawi zambiri m'matumba akuluakulu, m'mapaketi azakudya, ndi m'matumba azinthu.