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HDPE iwiri khoma malata chitoliro zopangira,
HDPE yopangira mapaipi awiri okhala ndi malata, Ndi mtundu wanji wa utomoni wa HDPE womwe umagwiritsidwa ntchito pazitoliro zamalata apawiri,

HDPE iwiri khoma malata chitoliro zopangira

1. Kapangidwe kazinthu zopangira: Zida za PE zokhala ndi makoma awiri nthawi zambiri zimakhala ndi polyethylene, zida zokulirapo komanso utoto.Ngati zopangira ndi zonyowa, kuti ziwonjezeke bwino kupanga, defoamer yoyenera ikhoza kuwonjezeredwa.

2, zofunikira pakuchita zinthu zopangira: momwe mungapangire mtengo wotsika, mavuvu apamwamba kwambiri, zimatengera kusankha kwa zida zopangira ndi kuphatikizika kwa fomula.

Zomwe zimafunikira pakugwirira ntchito kwa polyethylene (PE) zikuphatikiza kusungunuka kwamadzimadzi (MFR), nthawi yotulutsa oxidation (OIT) ndi kachulukidwe.Kukula kwa kusungunuka kwa madzi kumawonetsa kukula kwa kulemera kwa maselo.Nthawi zambiri, zinthu zomwe zimakhala ndi kuthamanga kwapamwamba kwambiri zimasungunuka zimathandizira kukonza ndi kupanga, ndipo zimatha kusintha kupanga bwino.Komabe, sizingakhale zazikulu kwambiri, zomwe zimakhudza kwambiri kuuma kwa mphete.Ndikoyenera kusankha pakati pa 0.8-1.5g/10min(190 ℃, 5kg).Nthawi ya oxidation induction imatsimikizira nthawi ya kuwonongeka kwa okosijeni.Kwa mavuvu omwe amafunikira zaka 50 akugwiritsidwa ntchito, kuwongolera nthawi yoyika ma oxidation yazinthu zopangira ndiye chinsinsi chotsimikizira moyo wautumiki wazaka 50.Zanenedwa momveka bwino mu GB/T19472.1-2004 kuti nthawi yopangira makutidwe ndi okosijeni yazinthu zopangira mavuvu iyenera kukhala ≥20min (200 ℃).Kwa polyethylene yapakatikati ndi yapamwamba, katundu wake akhoza kusinthidwa mwa kusintha kachulukidwe.Chifukwa tikudziwa kuti polyethylene yotsika kwambiri imatha kutalikitsa nthawi yake yolephera.

Kalasi ya chitoliro cha HDPE ili ndi kugawa kwakukulu kapena kugawanika kwa ma molekyulu.Imakhala ndi kukana kolimba kwamphamvu komanso kukhazikika bwino kwa kuuma komanso kulimba.Ndi yolimba kwambiri ndipo imakhala ndi sag yochepa pamene ikukonzedwa.Mapaipi opangidwa pogwiritsa ntchito utomoni uwu amakhala ndi mphamvu zabwino, zolimba komanso zolimba komanso zolimba za SCG ndi RCP..

Utoto uyenera kusungidwa m'nyumba yosungiramo madzi, youma komanso kutali ndi moto ndi dzuwa.Asamawunjikane panja.Panthawi yoyendetsa, zinthuzo zisawonongeke ndi dzuwa lamphamvu kapena mvula ndipo siziyenera kunyamulidwa pamodzi ndi mchenga, nthaka, zitsulo, malasha kapena galasi.Kuyendera limodzi ndi zinthu zapoizoni, zowononga komanso zoyaka moto ndizoletsedwa.

Kugwiritsa ntchito

HDPE chitoliro kalasi angagwiritsidwe ntchito kupanga mipope kuthamanga, monga mapaipi amadzi opsinjidwa, mapaipi gasi mafuta ndi mapaipi ena mafakitale.Itha kugwiritsidwanso ntchito popanga mapaipi osaponderezedwa monga mapaipi okhala ndi malata apawiri, mapaipi omangira makhoma, mapaipi a silicon-core, mapaipi amthirira waulimi ndi mapaipi apawiri a aluminiumplastics.Kuonjezera apo, kudzera mu extrusion yogwira ntchito (silane cross-linking), itha kugwiritsidwa ntchito popanga mapaipi ophatikizika a polyethylene (PEX) popereka madzi ozizira ndi otentha.