Chidziwitso choyambirira cha njira yopangira mankhwala ya PVC

Mavuto omwe amayenera kulipidwa pazinthu zophatikizira

Pakukonza utomoni wa PVC, zowonjezera zowonjezera ziyenera kuwonjezeredwa kuti zikwaniritse magwiridwe antchito a PVC kuti zikwaniritse zosowa zakukonza ndi magwiridwe antchito. Popanga ma pulasitiki azitseko ndi zenera, nthawi zambiri kumakhala kofunikira kuwonjezera zotchinjiriza kutentha, kukonza zosintha, kusintha kwa zotengera, mafuta, zotchingira kuwala, zokuta ndi inki. Ngakhale kuchuluka kwa zowonjezera zowonjezera ndi 0.1% mpaka 10% ya utomoni wa PVC, maudindo awo ndiofunikira kwambiri. Titha kunena kuti palibe chimodzi mwazofunikira, ndipo kusintha kwa ndalama zowonjezerazo kumakhudza kwambiri kukonza ndi magwiridwe antchito omaliza. Zazikulu. Chifukwa chake, sikuti zowonjezera zokha ziyenera kuyezedwa molondola, komanso kusakaniza kuyenera kusakanikirana mofananamo kuti zitheke kusinthasintha kwa zida.

Kukonzekera zakuthupi

Ntchito yokonzekera ya PVC imaphatikizapo kuphatikiza, kusakaniza kotentha, kusakaniza kozizira, mayendedwe ndi kusunga. Njirazi zimaphatikizapo njira zazing'ono zopangira ma batching ndi mayendedwe amanja, komanso njira zazikulu zopangira batching zodziwikiratu. M'zaka zaposachedwa, mafakitale olimba a PVC m'dziko langa alowa munthawi yakukula mwachangu. Kukula kwa kampani kukupitilizabe kukulira. Kwa makampani omwe amatulutsa pachaka matani 10,000, kugwiritsa ntchito zinthu zopangira njira zopangira zinthu sizingathenso kukwaniritsa zosowa za anthu ambiri. Njira yokhayokha yakhala njira yodziwika bwino. Njira zodziwikiratu zokhazikitsira zinthu nthawi zambiri zimakhala zoyenera kuzipanga zaluso zaluso zomwe zimatha kupanga matani oposa 5,000. Ntchito yake ndiyotsika, malo opangira zinthu ndiabwino, ndipo zolakwika za anthu zitha kupewedwa, koma ndalama zake ndizazikulu, ndalama zowonongera ndalama ndizokwera, kuyeretsa kachitidwe kumakhala kovuta, ndipo njira siyoyenera Kusintha pafupipafupi, makamaka mtundu kusintha. Mabizinesi okhala ndi mphamvu yochepera matani 4,000 nthawi zambiri amagwiritsa ntchito zosakaniza, mayendedwe, ndi kusakaniza. Vuto lalikulu lazinthu zopangira ndimphamvu kwambiri pantchito, kuipitsa fumbi kumapangidwa muziphatikizidwe ndikusakanikirana, koma ndalama ndizochepa ndipo kupanga kwake kumasintha.

Makina opanga zinthu amatanthauza makina owongoleredwa ndi makompyuta omwe ali pachimake, ophatikizidwa ndikuwonetsa kwa pneumatic, kenako kuphatikiza ophatikizira otentha ndi ozizira kuti apange mzere wathunthu wa PVC wosakaniza ndi kusakaniza. Ukadaulo uwu udayambitsidwa kudziko lathu m'ma 1980 ndipo udagwiritsidwa ntchito m'mabizinesi ena akulu pamlingo winawake. Ubwino waukadaulo uwu ndi kukhathamiritsa kwakukulu, kupanga bwino, komanso kuipitsa pang'ono, komwe kungakwaniritse zosowa za kupanga extrusion. Pakadali pano, mafakitale ena mdziko lathu amatha kupanga makina oterewa omwe amayendetsedwa ndi makompyuta.

Zosakaniza ndiyo njira yoyamba yosakaniza. Chinsinsi cha zosakaniza ndi mawu oti "quasi". M'makampani akuluakulu amakono omwe amapanga mbiri ya pulasitiki, zosakaniza zambiri zimakhala ndi makina azinthu zopangidwa ndi makompyuta omwe amayeza makina ambiri. Njira yomwe imagwiritsidwa ntchito kwambiri ndiyokuyeza muyeso. Malinga ndi njira zosiyanasiyana zolemera, zitha kugawidwa m'magulu azinthu zolemera, zolemera-zolemera ndi zolemera mosalekeza za njira zoyendera. Njira yolemera ya batch-to-batch ndiyabwino kwambiri yogwirizana ndi kudyetsa kwa batch-to-batch ndikusakaniza njira yofunikira pakusakanikirana, ndipo ndiyofunika kwambiri kuphatikiza PVC, chifukwa imagwiritsidwa ntchito kwambiri pakupanga PVC Mbiri.


Nthawi yamakalata: Mar-11-2021