nkhani

Dzina la mtundu waku China PVC nthawi zambiri limagwiritsidwa ntchito polima digiri kapena kutanthauzira kwachitsanzo.Mwachitsanzo, mitundu isanu ndi iwiri ya PVC (mtundu wa S-800, SG-7) kapena mitundu isanu ndi itatu ya PVC (mtundu wa S-700, SG-8) yokhala ndi khalidwe labwino idzadziwika mosiyana ndi opanga osiyanasiyana.Ambiri aiwo amalembedwa ndi SG ndi manambala amodzi kuyimira mitundu ya PVC.Chiwerengero cha mazana ndi zikwi zikwi zimayimira digiri ya polymerization (chiwerengero chomwecho chikuyimira mankhwala omwewo, monga Qingdao Haijing HS1000, Shanghai chlor-alkali WS1000,Qilu Petrochemical S1000zonse zimayimira PVC yamitundu isanu).

KUYELEKEZA KUTI MALO OMWE AKUMWAMBA AMAPHUNZIRA ZINTHU ZOSANGALALA AMAGWIRITSA NTCHITO ZAMBIRI 7, MITUNDU 8, ZOMWE AMAGWIRITSA NTCHITO KABWINO NDI QILU PETROCHEMICAL, Shanghai CHLOR-ALKALI, CANG HUA, Qingdao HAI JING, PRODUCT YA DAGU HUA.

Othandizana nawo atsopano komanso achidwi angafunse chifukwa chake opanga mapepala amakonda kugwiritsa ntchito Mtundu wa 7 ndi mtundu wa 8 m'malo mwa mtundu wa 5. Palibe wina, koma asanu ndi awiri, asanu ndi atatu a digiri ya PVC polymerization ndi yotsika, yosavuta kuyikonza.Osati pepala lokha, zoyikapo chitoliro cha PVC, mavavu a PVC ndi oyeneranso kugwiritsidwa ntchito.

Mafakitale a mapaipi nthawi zambiri amagwiritsa ntchito mtundu wa 5. Gawo lalikulu la calcium carbonate linawonjezeredwanso kuti lichepetse ndalama, zomwe siziyenera kufotokozedwa apa.

M’zaka zoopsa zimenezo, PVC m’dziko lathu inagaŵidwa m’mitundu isanu ndi itatu, yotchedwa mtundu 1 mpaka 8. Abale asanu ndi atatuwo anayesedwa (kuphwanyidwa) ndi msika, ndipo anayi okha ndiwo anatsala:

Mtundu 3(Digiri ya polymerization 1300, yomwe imagwiritsidwa ntchito kwambiri popanga waya ndi chingwe, filimu ya calendering), mtundu 5 (digiri ya polymerization 1000, yomwe imagwiritsidwa ntchito kwambiri popanga mbiri, mapaipi), ndi mtundu 7 eyiti.

Mainstream PVC kupanga ntchito kuyimitsidwa njira, pa kusankha osiyana kuyimitsidwa dispersant, angapezeke tinthu kapangidwe ndi kapangidwe kake a mitundu iwiri yosiyana utomoni.