Pambuyo poti chokhazikikacho chasinthidwa kuchoka pa mchere wa lead kukhala calcium zinc stabilizer, zimakhala zosavuta kupeza kuti mtundu wa chinthucho nthawi zambiri umakhala wobiriwira, ndipo zimakhala zovuta kusintha mtundu kuchokera ku wobiriwira kupita ku wofiira.
Pambuyo poti chokhazikika cha zinthu zolimba za PVC chasinthidwa kuchoka pa mchere wa lead kukhala chokhazikika cha calcium zinc, mavuto amtundu nawonso ndi vuto lofala komanso losiyanasiyana lomwe ndi lovuta kuthetsa. Zizindikiro zake ndi izi:
1. Kusintha kwa zinthu zokhazikika kumabweretsa kusintha kwa mtundu wa chinthucho. Chokhazikikacho chikasinthidwa kuchoka pa mchere wa lead kukhala calcium zinc stabilizer, zimakhala zosavuta kupeza kuti mtundu wa chinthucho nthawi zambiri umakhala wobiriwira, ndipo zimakhala zovuta kusintha mtundu kuchokera ku wobiriwira kupita ku wofiira.
2. Mtundu wa chinthucho mkati ndi kunja kwake sugwirizana mukatha kugwiritsa ntchito calcium zinc stabilizer. Nthawi zambiri, mtundu wakunja umakhala wabwino pang'ono, pomwe mtundu wamkati umakhala wabuluu-wobiriwira komanso wachikasu. Izi zitha kuchitika mosavuta m'ma profiles ndi mapaipi.
3. Kusintha kwa mitundu ya zinthu panthawi yokonza zinthu mutagwiritsa ntchito zolimbitsa calcium zinc. Pogwiritsa ntchito zolimbitsa mchere wa lead pokonza zinthu, pakhoza kukhala kusiyana kwa mitundu pakati pa makina osiyanasiyana komanso nthawi zosiyanasiyana mkati mwa makina omwewo, koma kusinthaku kumakhala kochepa. Mukagwiritsa ntchito zolimbitsa calcium zinc, kusinthaku kumatha kukhala kwakukulu, ndipo kusintha pang'ono kwa zinthu zopangira ndi njira pa mtundu kungawonekere kwambiri. Wolembayo wakumana ndi zochitika zomwe makasitomala amagwiritsa ntchito zolimbitsa calcium zinc popanga mapaipi ndi zolumikizira, ndipo kusintha kwa kuthamanga sikungokhudza mtundu wa chinthucho, komanso kumakhudza magwiridwe antchito ake. Kusinthaku kumakhala kovuta kwambiri kuposa kugwiritsa ntchito zolimbitsa mchere wa lead.
4. Vuto la mtundu wa zinthu panthawi yosungira, kunyamula, ndi kugwiritsa ntchito mutagwiritsa ntchito zolimbitsa zachilengedwe za calcium zinc. Zinthu zolimba za PVC zomwe zimagwiritsa ntchito zolimbitsa zachilengedwe za mchere wa lead sizisintha kwambiri mtundu wake panthawi yosungira, kunyamula, ndi kugwiritsa ntchito. Pambuyo posinthidwa kukhala zolimbitsa zachilengedwe monga calcium ndi zinc, pakhoza kukhala chizolowezi choti chinthucho chisanduke chachikasu ndi buluu chitayima. Zina zolimbitsa zimatha kupangitsa kuti chinthucho chisanduke chofiira chikagwiritsidwa ntchito pazinthu zomwe zili ndi ayoni ambiri achitsulo mu ufa wowonjezera wa calcium.
Nthawi yotumizira: Julayi-12-2024
