1) PBT ili ndi hygroscopicity yotsika, koma imakhudzidwa kwambiri ndi chinyezi pa kutentha kwakukulu. Idzasokoneza mamolekyu a PBT panthawi yakuumbandondomeko, mdima mtundu ndi kubala mawanga pamwamba, choncho ayenera zambiri zouma.
2) Kusungunuka kwa PBT kumakhala ndi madzi abwino kwambiri, kotero ndikosavuta kupanga zokhala ndi mipanda yopyapyala, zooneka ngati zovuta, koma samalani ndi kung'anima kwa nkhungu ndi kudontha kwa nozzle.
3) PBT ili ndi malo osungunuka. Pamene kutentha kumakwera pamwamba pa malo osungunuka, madzi amadzimadzi adzawonjezeka mwadzidzidzi, choncho chidwi chiyenera kulipidwa kwa icho.
4) PBT ili ndi njira yopapatiza yopangira jekeseni, imawonekera mwachangu ikazizira, komanso madzi abwino, omwe ndi oyenera kwambiri jekeseni mwachangu.
5) PBT ili ndi chiwerengero chokulirapo cha shrinkage ndi shrinkage range, ndipo kusiyana kwa shrinkage kumadera osiyanasiyana kumaonekera kwambiri kuposa mapulasitiki ena.
6) PBT imakhudzidwa kwambiri ndi mayankho a notches ndi ngodya zakuthwa. Kupsinjika maganizo kumakhala koyenera kuchitika pamalowa, zomwe zimachepetsa kwambiri mphamvu yonyamula katundu, ndipo zimakhala zosavuta kusweka pamene zikakamizidwa kapena kukhudzidwa. Choncho, izi ziyenera kuganiziridwa popanga zigawo zapulasitiki. Ngodya zonse, makamaka zamkati, ziyenera kugwiritsa ntchito kusintha kwa arc momwe zingathere.
7) Kukula kwa PBT koyera kumatha kufika 200%, kotero kuti zinthu zomwe zimakhala ndi madontho ang'onoang'ono zimatha kutulutsidwa mu nkhungu. Komabe, mutatha kudzaza ndi galasi la galasi kapena chodzaza, kutalika kwake kumachepetsedwa kwambiri, ndipo ngati pali ma depressions muzinthu, kukakamiza kokakamiza sikungatheke.
8) Wothamanga wa nkhungu ya PBT ayenera kukhala wamfupi komanso wandiweyani ngati n'kotheka, ndipo wothamanga wozungulira adzakhala ndi zotsatira zabwino kwambiri. Kawirikawiri, PBT yosinthidwa ndi yosasinthika ingagwiritsidwe ntchito ndi othamanga wamba, koma magalasi opangidwa ndi magalasi a PBT amatha kukhala ndi zotsatira zabwino pamene kuumba kothamanga kotentha kumagwiritsidwa ntchito.
9) Chipata cha nsonga ndi chipata chobisika chimakhala ndi mphamvu yaikulu yometa, yomwe ingachepetse mawonekedwe owoneka bwino a PBT kusungunuka, omwe amathandiza kuumba. Ndi chipata chomwe chimagwiritsidwa ntchito pafupipafupi. Dera la chipata liyenera kukhala lalikulu.
10) Chipatacho ndi bwino kuyang'anizana ndi pakatikati kapena pachimake, kuti mupewe kupopera mankhwala ndi kuchepetsa kudzaza kwa zosungunuka pamene zikuyenda mumtsinje. Kupanda kutero, mankhwalawa amatha kuwonongeka pang'ono ndikuwononga magwiridwe antchito.
Nthawi yotumiza: Feb-18-2022
