Mawaya, zingwe, mapaipi, mapaipi, ndi ma profiles ndi ochepa chabe omwe amagwiritsidwa ntchito pa PE. Mapaipi ogwiritsira ntchito amasiyana kuyambira mapaipi akuda okwana mainchesi 48 m'mimba mwake a mapaipi a mafakitale ndi mizinda mpaka mapaipi ang'onoang'ono achikasu ozungulira kuti agwiritse ntchito gasi lachilengedwe. Kugwiritsa ntchito mapaipi akuluakulu okhala ndi dzenje m'malo mwa zimbudzi ndi ngalande zamkuntho zopangidwa ndi konkire kukukulirakulira mwachangu.
Mapepala ndi ma thermoforming
Ma picnic cooler ambiri akuluakulu amaphatikizapo ma thermoformed liners opangidwa ndi PE, zomwe zimapangitsa kuti zinthu zikhale zolimba, zopepuka, komanso zolimba. Ma fenders, ma tank liner, pan guards, ma shipping box, ndi ma tank ndi zitsanzo za zinthu zina zowonjezera za sheet ndi thermoformed. Ma mulch kapena pool bottoms, omwe amadalira kulimba kwa MDPE, kukana mankhwala, komanso kusalowa madzi, ndi zinthu ziwiri zofunika komanso zomwe zikukula mwachangu pa sheet.
Zoumba zopukutira
United States imagulitsa zoposa gawo limodzi mwa magawo atatu aHDPEZopangira ma blow molding. Zimayambira m'mafiriji ang'onoang'ono, mafiriji akuluakulu, matanki amafuta a magalimoto, ndi zitini mpaka mabotolo a bleach, mafuta a injini, sopo, mkaka, ndi madzi osakhazikika. Ma grade ofanana angagwiritsidwe ntchito pa mapepala ndi ma thermoforming chifukwa kusungunuka kwa mphamvu, ES-CR, ndi kulimba ndi zizindikiro zapadera za ma blow molding.
jakisoni
Zidebe zazing'ono (zosakwana 16oz) nthawi zambiri zimapangidwa pogwiritsa ntchito blow molding poyika ma shampu, zodzoladzola, ndi mankhwala operekedwa ndi dokotala. Ubwino wa njira iyi ndikuti mabotolo omalizidwa amadulidwa okha, mosiyana ndi njira zodziwika bwino zoblow molding zomwe zimafuna ntchito zomaliza. Ngakhale kuti ma grade ena ang'onoang'ono a MWD amagwiritsidwa ntchito kukongoletsa pamwamba, ma grade apakati mpaka akulu a MWD nthawi zambiri amagwiritsidwa ntchito.
jekeseni yopangira jekeseni
Gawo limodzi mwa magawo asanu a zinthu zopangidwa m'dziko munoHDPEimagwiritsidwa ntchito kuyambira m'mabotolo a 5-gsl mpaka makapu a zakumwa opyapyala omwe amagwiritsidwanso ntchito. Pali mitundu yochepa yamadzimadzi yomwe imakhala yolimba komanso yopepuka komanso yolimba, ndipo mitundu ya jakisoni nthawi zambiri imakhala ndi index yosungunuka ya 5 mpaka 10. Zinthu zopyapyala komanso ma phukusi a chakudya, zitini zolimba komanso zopaka utoto zomwe zimakhala nthawi yayitali, komanso ntchito zomwe zimalimbana kwambiri ndi kusweka kwa chilengedwe, monga zitini za zinyalala zolemera magaloni 90 ndi matanki ang'onoang'ono amafuta a injini, ndi zina mwa ntchito za izi.
kutembenuza kupanga
Zipangizo zikakonzedwa pogwiritsa ntchito ukadaulo uwu, nthawi zambiri zimaphwanyidwa kukhala ufa kenako n’kusungunuka ndikuyenda mu kutentha. Rotomolding imagwiritsa ntchito magulu a PE olumikizidwa komanso ogwiritsidwa ntchito kwambiri. Chiyerekezo chake chosungunuka nthawi zambiri chimakhala kuyambira 3 mpaka 8, ndipo kuchuluka kwake kwa MDPE/HDPEKawirikawiri imakhala pakati pa 0.935 ndi 0.945g/CC yokhala ndi MWD yopapatiza, zomwe zimapangitsa kuti mankhwalawa akhale ndi mphamvu zambiri komanso kuti asawonongeke kwambiri. Ma MI grade apamwamba nthawi zambiri sali oyenera chifukwa alibe mphamvu zomwe zinthu zolumikizidwa zimakhudzidwa nazo komanso kukana kupsinjika kwa chilengedwe.
Kugwiritsa ntchito rotomoulding yogwira ntchito bwino kumagwiritsa ntchito makhalidwe apadera a magiredi ake olumikizirana ndi mankhwala. Magiredi awa ali ndi kukana kwabwino kwa ming'alu komanso kulimba kwa chilengedwe panthawi yoyamba ya kuzungulira kwa umba pamene akuyenda bwino. Osagwedezeka ndi nyengo ndi kusweka. Mabotolo akuluakulu kuyambira matanki osungiramo ulimi okwana magaloni 20,000 mpaka matanki osungiramo magaloni 500 omwe amagwiritsidwa ntchito kunyamula mankhwala osiyanasiyana ndi oyenera kwambiri pa PE yolumikizirana ndi mankhwala.
filimu
Kukonza filimu yophwanyidwa bwino kapena kukonza kwa flat extrusion nthawi zambiri kumagwiritsidwa ntchito pokonza filimu ya PE. Ma PE ambiri amagwiritsidwa ntchito pamafilimu; zosankha zimaphatikizapo linear low density PE (LLDPE) kapena general-purpose low density PE (LDPE). Pakufunika kutambasuka kwakukulu komanso mipata yabwino kwambiri, magiredi a filimu ya HDPE nthawi zambiri amagwiritsidwa ntchito. Mwachitsanzo, filimu ya HDPE imagwiritsidwa ntchito nthawi zambiri m'matumba akuluakulu, ma phukusi azakudya, ndi matumba azinthu.