Kuyamba kwa chitoliro cha PVC

Ubwino wa mapaipi a PVC
1. Transportability: Zida za UPVC zimakhala ndi mphamvu yokoka yomwe imakhala gawo limodzi mwa magawo khumi a chitsulo chosungunuka, zomwe zimapangitsa kuti zikhale zotsika mtengo kutumiza ndi kuziyika.
2. UPVC ili ndi asidi wambiri komanso kukana kwa alkali, kupatulapo ma asidi amphamvu ndi alkalis pafupi ndi malo odzaza kapena oxidizing amphamvu kwambiri.
3. Zosayendetsa: Chifukwa chakuti zinthu za UPVC sizimayendetsa ndipo sizimawononga pamene zikugwiritsidwa ntchito panopa kapena electrolysis, palibe ntchito yowonjezera yomwe ikufunika.
4. Palibe nkhawa za chitetezo cha moto chifukwa sungapse kapena kulimbikitsa kuyaka.
5. Kuyika ndi kosavuta komanso kotsika mtengo chifukwa chogwiritsa ntchito zomatira za PVC, zomwe zatsimikizira kuti ndizodalirika komanso zotetezeka, zosavuta kugwiritsa ntchito, komanso zotsika mtengo.Kudula ndi kulumikiza kumakhalanso kosavuta.
6. Kukana kwanyengo kwabwino kwambiri komanso kukana kuwononga mabakiteriya ndi mafangasi kumapangitsa chilichonse kukhala cholimba.
7. Kukaniza kwakung'ono ndi kuthamanga kwapamwamba: khoma losalala lamkati limachepetsa kutaya kwa madzimadzi, limalepheretsa zinyalala kuti zisamamatire pakhoma la chitoliro chosalala, ndipo zimapangitsa kukonza kukhala kosavuta komanso kotsika mtengo.

Pulasitiki si PVC.
PVC ndi pulasitiki yazinthu zambiri zomwe zitha kugwiritsidwa ntchito pazinthu zosiyanasiyana, kuphatikiza zida wamba ndi malo omangira.
M'mbuyomu, PVC inali pulasitiki yomwe imagwiritsidwa ntchito kwambiri padziko lonse lapansi ndipo inali ndi ntchito zosiyanasiyana.Amagwiritsidwa ntchito kwambiri muzomangamanga, katundu wamafakitale, zofunika zatsiku ndi tsiku, zikopa zapansi, matailosi apansi, zikopa zopangira, mapaipi, mawaya, ndi zingwe, mafilimu onyamula, mabotolo, ulusi, zinthu zotulutsa thovu, ndi zida zosindikizira, mwa zina.

Bungwe Loona za Umoyo Padziko Lonse la World Health Organization for Research on Cancer poyamba linalemba mndandanda wa khansa pa October 27, 2017, ndipo polyvinyl chloride inali imodzi mwa mitundu itatu ya carcinogens pamndandanda umenewo.
Amorphous polima yokhala ndi mawonekedwe a crystalline, polyvinyl chloride ndi polima yomwe imalowetsa atomu imodzi ya chlorine mu atomu imodzi ya haidrojeni mu polyethylene.Chikalatachi chakonzedwa motere: n [-CH2-CHCl] Ambiri mwa ma monomers a VCM amaphatikizidwa mu kasinthidwe kamutu ndi mchira kuti apange polima mzere wotchedwa PVC.Ma atomu onse a kaboni amalumikizidwa pamodzi ndi zomangira ndipo amapangidwa mwadongosolo la zigzag.Atomu iliyonse ya kaboni imakhala ndi sp3 wosakanizidwa.

The PVC molecular unyolo ali mwachidule syndiotactic dongosolo wokhazikika.Sydiotacticity imakwera pamene kutentha kwa polymerization kumatsika.Pali zomangira zosakhazikika kuphatikiza mutu ndi mutu, unyolo wa nthambi, mgwirizano wapawiri, allyl chloride, ndi tertiary chlorine mu polyvinyl chloride macromolecular structure, zomwe zimabweretsa zovuta monga kutsika kwamafuta kukana komanso kukana kukalamba.Zolakwika zoterezi zimatha kukonzedwa pambuyo powoneka ngati zikugwirizana.

Njira yolumikizira PVC:
1. Guluu wapadera amagwiritsidwa ntchito kulumikiza zida za chitoliro cha PVC;zomatira ziyenera kugwedezeka musanagwiritse ntchito.
2. Chigawo cha socket ndi chitoliro cha PVC chiyenera kutsukidwa.Malo ochepa omwe alipo pakati pazitsulo, pamwamba pazitsulo ziyenera kukhala zosalala.Kenako, sakanizaninso guluu mu soketi iliyonse ndikutsuka guluu kawiri kunja kwa soketi iliyonse.Masekondi 40 mutatha kuyanika, ikani Ikani guluu kutali ndikuyang'ana ngati nthawi yowumitsa iyenera kuwonjezeka kapena kuchepetsedwa malinga ndi nyengo.
3. Paipiyo iyenera kudzazidwa m'mbuyo patatha maola 24 mutalumikiza mowuma, payipi iyenera kuikidwa mu dzenje, ndipo kunyowa sikuloledwa.Mukabwezeretsanso, sungani zolumikizira, mudzaze malo ozungulira chitoliro ndi mchenga, ndikubwezeretsanso kwambiri.
4. Kuti mulumikize chitoliro cha PVC ku chitoliro chachitsulo, yeretsani chitoliro chachitsulo chomangika, chotenthetsera kuti mufewetse chitoliro cha PVC (popanda kuwotcha), ndiyeno muyike chitoliro cha PVC muzitsulo zachitsulo kuti muzizizira.Zotsatira zake zidzakhala bwino ngati ma hoops opangidwa ndi chitoliro chachitsulo aphatikizidwa.
mapaipi a PVCakhoza kulumikizidwa mu imodzi mwa njira zinayi:
1. Ngati payipi yawonongeka kwambiri, yomalizapayipiziyenera kusinthidwa.Cholumikizira cha madoko awiri chingagwiritsidwe ntchito kuchita izi.
2. Njira yosungunulira ingagwiritsidwe ntchito kuyimitsa zosungunulira zomatira.Panthawiyi, madzi a chitoliro chachikulu amatsanulidwa, zomwe zimapangitsa kuti paipi ikhale yovuta kwambiri guluu asanalowe m'bowo pamalo otayira.Guluuyo amakokedwa mu pores chifukwa cha kupanikizika koyipa kwa payipi, kuletsa kutayikira.
3. Cholinga chachikulu cha ndondomeko yomangirira mawondo ndi kutayikira kwa bokosi kudzera m'ming'alu yaing'ono ndi mabowo.Chitoliro chofananacho tsopano chasankhidwa kuti chidulidwe chotalika ndipo chimakhala chautali kuyambira 15 mpaka 500 px.Mkati mwa mkati mwa casing ndi kunja kwa chitoliro chokonzedwanso zimagwirizanitsidwa pamagulu mogwirizana ndi ndondomeko yogwiritsidwa ntchito.Mukathira guluu, pamwamba pake amakakamira, ndiyeno amamangirira kumene akutulutsa.
4. Kuti mupange njira yothetsera utomoni pogwiritsa ntchito epoxy resin kuchiritsa wothandizira, gwiritsani ntchito njira ya galasi fiber.Imalukidwa mofanana pamwamba pa payipi kapena polowera potuluka pambuyo poviikidwa mu njira ya utomoni ndi nsalu yagalasi ya fiber fiber, ndipo ikachiritsa, imakhala FRP.


Nthawi yotumiza: Dec-01-2022

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