Zomwe Muyenera Kudziwa Panthawi Yopangira Jakisoni

Masiku ano, anthu ambiri sadziwa zambiri.Nthawi zambiri, njira yopangira jakisoni kuchokera ku ma pellets apulasitiki kupita kuzinthu zopangidwa ndi jakisoni imafuna njira zingapo zokhazikika, ndipo kusagwira bwino ntchito iliyonse mwa njirazi kumabweretsa zovuta zamtundu wazinthu.

1. Rheology ya mapulasitiki: Momwe mapulasitiki amayendera, kuyenda ndi kusintha makulidwe.
2. Cholinga, ntchito ndi zotsatira za kutentha, kuthamanga, kuthamanga ndi kuzizira.
3. Kudzaza masitepe ambiri ndi kulamulira kwapakati pazigawo zambiri;zotsatira za crystallization, amorphous ndi ma molekyulu / fiber dongosolo pa ndondomeko ndi khalidwe.
4. Momwe kusintha kwa makina opangira jekeseni kumakhudzira ndondomeko ndi khalidwe.
5. Zotsatira za kupsinjika kwamkati, kuzizira ndi kuchepa kwa pulasitiki pa khalidwe la zigawo za pulasitiki.

Masiku ano, mbali zambiri za mankhwalawa sizingasiyanitsidwe ndi mankhwala opangira jekeseni, kotero ubwino wa mankhwala opangira jekeseni amatsimikizira mwachindunji ubwino, maonekedwe ndi machitidwe a zinthu zoumba.
Muyenera kudziwa zinthu izi mukamaumba jekeseni
Zina mwazinthu zosiyanasiyana zomwe zimakhudza kupanga kwazinthu, kutentha kwasungunuka ndi kutentha kwa nkhungu kumakhudza kuchepa kwenikweni.Choncho, popanga patsekeke wa nkhungu jekeseni mwatsatanetsatane, kuti mudziwe akamaumba zinthu, m'pofunika kulabadira masanjidwe a patsekeke.

Pulasitiki yosungunuka imabweretsa kutentha ku nkhungu, ndipo kutentha kwa nkhungu nthawi zambiri kumagawidwa mozungulira, mu mawonekedwe okhazikika ndi wothamanga wamkulu monga pakati.Chifukwa chake, kuti muchepetse cholakwika cha shrinkage pakati pa mapanga, kukulitsa mikhalidwe yololeka yakuumba, ndikuchepetsa mtengo, ndikofunikira kupanga njira zofananira, kuwongolera kanjira, kakonzedwe kameneka, ndi dongosolo lozungulira lokhazikika lokhazikika panjira yayikulu. .Chifukwa chake, mawonekedwe apakati a nkhungu yojambulira yolondola yomwe imagwiritsidwa ntchito iyenera kukwaniritsa zofunikira pakulinganiza ndi kukonza kwa othamanga omwe amayang'ana pa wothamanga wamkulu, komanso kapangidwe kamene kamakhala ndi wothamanga wamkulu ngati mzere wa symmetry uyenera kutengedwa, apo ayi, kuchuluka kwa shrinkage. khomo lililonse lidzakhala losiyana..

Kumene, mu jekeseni akamaumba ndondomeko, kuwonjezera mphamvu ya jekeseni nkhungu patsekeke pa akamaumba mankhwala, pali zinthu zina zambiri.Pokhapokha pamene zinthu izi zasinthidwa bwino ndikugwiriridwa ndi ntchito yopangira zinthu zonse zopangira jekeseni zingathe kutsirizidwa bwino, potero kuonetsetsa kuti kupanga ndi kukwaniritsa phindu la kupanga.
Njira yopangira jekeseni wokhwima imatha kupanga zinthu zapulasitiki zogwiritsidwa ntchito ndi mitundu yosiyanasiyana, mongazida zamagetsi zamagetsi,zigawo zazing'ono zoyenera, zipolopolo kuti ziteteze zikopa zofunika kwambiri, ndi zina.