Chikopa chopangidwa ndi PVC ndi chinthu chopangidwa ndi zinthu zosiyanasiyana chomwe chimagwiritsidwa ntchito kwambiri poika katundu, mipando, mipando yamagalimoto ndi nsapato. Chifukwa cha mtengo wake wotsika, kapangidwe kake kofanana ndi chikopa, mapangidwe osiyanasiyana, kukonza kosavuta (kosalowa madzi, kosapaka utoto, kupukuta ndi kupukuta) komanso kusagwiritsidwa ntchito bwino, ndi njira yotchuka kwambiri yopangira chikopa chenicheni m'makampani ogulitsa, magalimoto ndi mipando.
Komabe, nkhawa yokhudza magwiridwe antchito kwa nthawi yayitali ikupitirirabe: mwachitsanzo, mipando yamagalimoto yomwe imayatsidwa ndi dzuwa imatha kusweka ndikutha, pomwe zophimba katundu zimatha kusweka chifukwa cha kusintha kwa kutentha. Zinthu izi zimatanthauza kuti ubwino wake ndi moyo wake wautumiki zimadalira kwambiri chithandizo chopangidwa—makamaka zokhazikika za PVC. Pakati pa mitundu ikuluikulu ya zikopa zopanga (PVC, PU, microfiber), chikopa chopanga cha PVC ndicho chomwe chimagwiritsidwa ntchito kwambiri chifukwa cha mtengo wake wotsika komanso kusalowa madzi mwamphamvu, zomwe zimapangitsa kuti chikhale choyenera pazinthu zolemera zapakatikati mpaka zochepa. Kwa opanga omwe amayang'ana kwambiri khalidwe la zikopa zopanga za PVC, ogwirizana nawo odalirika monga TopJoy, omwe amagwira ntchito kwambiri pa mayankho okhazikika a PVC, ndi ofunikira kwambiri pothana ndi mavuto a magwiridwe antchito.
Njira zake zazikulu zopangira—kuphimba, kuphimba ndi kupukuta thovu—zimapangidwa kuti zigwirizane ndi ntchito zosiyanasiyana: kuphimba zinthu zopyapyala, zosalala; kuphimba zinthu zofananira, mipando yathyathyathya ndi zida zamagalimoto; kuphimba zinthu zopepuka, zokometsera ndi tinthu tating'onoting'ono ta chikopa. Vuto lalikulu panjirazi ndi kutentha kwambiri (180-220℃), komwe kumawopseza utomoni wa PVC ndipo kumayambitsa mavuto pakupanga popanda chitetezo choyenera.
Utomoni wa PVC umakhudzidwa ndi kutentha; kutentha kwambiri popanga zinthu kumapangitsa kuti hydrogen chloride ikhale yoopsa. Izi zimapangitsa kuti pakhale zolakwika monga kusintha mtundu, kapangidwe kosagwirizana komanso kuchepa kwa mphamvu yokoka, zomwe zimapangitsa kuti mabizinesi azitaya ndalama zambiri komanso ndalama zopangira zinthu.
Kupatula zovuta zopanga, chikopa chopangidwa ndi PVC chimakumananso ndi mavuto okalamba akagwiritsidwa ntchito. Kukhudzidwa ndi kuwala kwa dzuwa, chinyezi ndi kusintha kwa kutentha kungayambitse kuuma, ming'alu ndi mawonekedwe ofooka, zomwe zimakhudza kwambiri kugwiritsidwa ntchito kwa chinthucho komanso moyo wake.
Zokhazikika za PVC za TopJoyAmathetsa mavuto opanga ndi kugwiritsa ntchito bwino zinthuzi. Amayamwa hydrogen chloride yoopsa yomwe imatulutsidwa panthawi ya kuwonongeka kwa PVC kuti atsimikizire kuti kupanga kwake kuli bwino komanso kuchepetsa kuchuluka kwa zolakwika, komanso kuchepetsa kukalamba kwa chilengedwe. Izi zimawonjezera moyo wautumiki wazinthu ndipo zimasunga magwiridwe antchito okhazikika, zomwe ndizofunikira kwambiri kuti opanga akwaniritse zosowa zamsika ndikulimbitsa chidaliro cha ogula. Ndi luso laukadaulo potumikira makampani opanga zikopa za PVC, TopJoy imapereka mayankho okhazikika omwe amagwirizana ndi zosowa zosiyanasiyana zopangira za gawoli.
| CHIPANGIZO | MAFOMU | GALADI | NTCHITO | NDEMANGA |
| Ca Zn | Madzi | CH-401 | E-PVC | Cholinga chachikulu |
| Ca Zn | Madzi | CH-431 | E-PVC | Fungo Lochepa |
| Ca Zn | Ufa | TP-9410 | E-PVC | Gulu la thovu |
| Ca Zn | Ufa | TP-9420 | S-PVC | Cholinga chachikulu |
| Ba Zn | Madzi | CH-601 | E-PVC | Cholinga chachikulu |
| Ba Zn | Madzi | CH-605 | E-PVC ndi S-PVC | Chophimba chapamwamba, Kukhazikika kwabwino kwa kutentha ndi kukhazikika kwa utoto |
| Ba Cd Zn | Madzi | CH-301 | E-PVC ndi S-PVC | Cholinga chachikulu |
| Ba Cd Zn | Madzi | CH-302 | E-PVC ndi S-PVC | Kuchita Bwino Kwambiri |
| K Zn | Madzi | YA-230 | E-PVC | Kicker, chiŵerengero cha thovu lonse |
| K Zn | Madzi | YA-332 | E-PVC | Kicker, Chiŵerengero chachikulu cha thovu |