Zolimbitsa kutentha za PVCZimagwira ntchito yofunika kwambiri pakuonetsetsa kuti mapaipi a PVC akugwira ntchito bwino komanso kulimba. Zokhazikikazi ndi zowonjezera zomwe zimagwiritsidwa ntchito kuteteza zipangizo za PVC kuti zisawonongeke chifukwa cha kutentha, kuwala ndi mpweya. Munkhaniyi, tifufuza momwe zokhazikika kutentha za PVC zimagwiritsidwira ntchito m'mapaipi a PVC komanso kufunika kwake pakusunga bwino mapaipi.
PVC, kapena polyvinyl chloride, ndi chinthu chogwiritsidwa ntchito kwambiri mumakampani omanga nyumba pazinthu zosiyanasiyana, kuphatikizapo mapaipi, zolumikizira ndi machubu. Mapaipi a PVC amagwiritsidwa ntchito kwambiri popereka madzi, ngalande, kuthirira ndi kukonza zinyalala chifukwa cha kulimba kwawo, kukana dzimbiri, komanso kuyika kosavuta. Komabe, zipangizo za PVC nthawi zambiri zimawonongeka zikagwiritsidwa ntchito kutentha ndi kuwala, zomwe zimapangitsa kuti mphamvu ya makina itayike komanso mtundu wake usinthe.
Pofuna kuthana ndi vutoli, zolimbitsa kutentha za PVC zimagwiritsidwa ntchito kuteteza zinthu za PVC kuti zisawonongeke ndi kutentha panthawi yokonza ndi kugwiritsa ntchito mapaipi a PVC. Cholinga cha zolimbitsa izi ndikuletsa kuwonongeka komwe kumachitika PVC ikakumana ndi kutentha ndi kuwala, motero kukulitsa moyo wa ntchito ya chitoliro ndikusunga mawonekedwe ake.
Pali mitundu yambiri ya zolimbitsa kutentha za PVC zomwe zimagwiritsidwa ntchito pa mapaipi a PVC, kuphatikizapo zolimbitsa thupi zochokera ku lead, zolimbitsa thupi zochokera ku tin, zolimbitsa thupi zochokera ku calcium ndi zolimbitsa thupi zochokera ku organic. Mtundu uliwonse wa cholimbitsa thupi uli ndi makhalidwe ake apadera komanso zabwino zake, ndipo kusankha cholimbitsa thupi choyenera kwambiri kumadalira zofunikira zenizeni za ntchito yanu ya PVC.
Zokhazikika zochokera ku lead, monga lead stearate ndi lead trivalent sulfate, zakhala zikugwiritsidwa ntchito kwambiri kale chifukwa cha kukhazikika kwawo kwa kutentha komanso kugwiritsa ntchito bwino ndalama. Komabe, chifukwa cha nkhawa zachilengedwe ndi thanzi, mayiko ambiri asiya kugwiritsa ntchito zinthu zokhazikika zochokera ku lead ndipo asintha ndi zinthu zina zokhazikika.
Zokhazikika zopangidwa ndi tin, monga dibutyltin dilaurate ndi tributyltin oxide, zimadziwika kuti zimakhala zokhazikika komanso zomveka bwino pa kutentha, zomwe zimapangitsa kuti zikhale zoyenera kugwiritsidwa ntchito pomwe kusunga utoto ndikofunikira. Zokhazikikazi zimatetezanso bwino chitoliro cha PVC kuti chisawonongeke panthawi yokonza ndi kuwonekera panja.
Zinthu zokhazikika zochokera ku calcium, monga calcium stearate ndizokhazikika za zinki za calcium, ndi zinthu zina zopanda poizoni m'malo mwa zokhazikika zochokera ku lead ndipo zimagwiritsidwa ntchito kwambiri popanga mapaipi a PVC a madzi akumwa ndi ma phukusi a chakudya. Zokhazikika izi zimakhala ndi kukhazikika kwa kutentha komanso kukana nyengo, zomwe zimapangitsa kuti zikhale zoyenera kugwiritsidwa ntchito panja.
Zolimbitsa thupi zachilengedwe, monga mafuta a soya osungunuka ndi methyltin mercaptide, zimachokera ku zinthu zachilengedwe ndipo zimatchuka chifukwa cha makhalidwe awo abwino komanso osakhala oopsa. Zolimbitsa thupi zimenezi zimateteza mapaipi a PVC ku kutentha ndipo ndizoyenera kugwiritsidwa ntchito ndi malamulo okhwima okhudza chilengedwe.
Pakupanga mapaipi a PVC, zolimbitsa kutentha za PVC zimawonjezedwa ku utomoni wa PVC panthawi yophatikizana kuti apange chisakanizo chofanana. Zolimbitsa thupi zimaletsa kuwonongeka komwe kumachitika chifukwa cha kutentha ndi kuwala popanga ma complexes okhala ndi unyolo wa polima wa PVC. Izi zimatsimikizira kuti chitoliro cha PVC chimasunga mphamvu zake zamakaniko, kukhazikika kwa utoto, komanso kulimba kwa mawonekedwe ake nthawi yonse ya moyo wake.
Pa nthawi yonse ya moyo wa mapaipi a PVC, kukhudzana ndi zinthu zakunja monga kuwala kwa dzuwa, kusinthasintha kwa kutentha, mankhwala, ndi zina zotero kudzafulumizitsa kuwonongeka kwa zipangizo za PVC. Zinthu zolimbitsa kutentha za PVC zimagwira ntchito yofunika kwambiri poteteza mapaipi ku zinthu zowononga izi, kuonetsetsa kuti amagwira ntchito bwino komanso kudalirika kwa nthawi yayitali.
Kugwiritsa ntchito zolimbitsa kutentha kwa PVC ndikofunikira kwambiri kuti mapaipi a PVC akhale abwino komanso ogwira ntchito bwino. Zolimbitsa izi zimateteza zinthu za PVC kuti zisawonongeke ndi kutentha ndipo zimaonetsetsa kuti chitolirocho chimasunga mawonekedwe ake, kukhazikika kwa mitundu, komanso kulimba kwa mawonekedwe ake. Pamene ukadaulo wolimbitsa ukupita patsogolo, tsopano pali njira zosiyanasiyana zokwaniritsira zofunikira za mapaipi osiyanasiyana a PVC. Pamene kufunikira kwa mapaipi a PVC apamwamba komanso olimba kukupitilira kukula, kufunika kwa zolimbitsa kutentha kwa PVC mumakampani opanga mapaipi a PVC sikunganyalanyazidwe.
Nthawi yotumizira: Januwale-10-2024