Kukula kwa mavavu apulasitiki

Valve ya pulasitiki ndi mtundu wogwiritsidwa ntchito kwambiri wa valve, uli ndi ubwino wa kukana kwa dzimbiri, kulemera kwake, kukana kuvala, etc. Amagwiritsidwa ntchito kwambiri mu mankhwala, petrochemical, kuteteza chilengedwe ndi mafakitale ena.Zotsatirazi ndi mbiri ya chitukuko cha mavavu apulasitiki.

M'zaka za m'ma 1950, ndi chitukuko chofulumira cha makampani opanga mankhwala, kufunikira kwa mavavu kunakula pang'onopang'ono.Panthawiyi, zipangizo zapulasitiki zakhala zikugwiritsidwa ntchito kwambiri m'mafakitale, choncho akatswiri ena anayamba kuphunzira momwe angagwiritsire ntchito zipangizo zapulasitiki popanga ma valve.Mavavu apulasitiki oyambilira amapangidwa makamaka pogwiritsa ntchito zinthu za polyvinyl chloride (PVC), zomwe zimakhala ndi kukana kwa dzimbiri, koma mawonekedwe ake amakina ndi osauka ndipo amangoyenera kupanikizika pang'ono komanso kutentha kochepa komwe kumagwirira ntchito.

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M'zaka za m'ma 1960, ndi chitukuko chosalekeza cha teknoloji yapulasitiki, polypropylene (PP), polytetrafluoroethylene (PTFE) ndi zipangizo zina zinagwiritsidwa ntchito popanga mavavu apulasitiki.Zidazi zimakhala ndi makina abwino kwambiri komanso kukana kwa dzimbiri, ndipo zimatha kutengera malo ambiri ogwira ntchito.

M'zaka za m'ma 1970, ndi kukhwima kwa umisiri wa valavu ya pulasitiki, mavavu apulasitiki atsopano osiyanasiyana, monga mavavu a polyvinyl fluoride (PVDF), ma valve zitsulo zamagalasi, ndi zina zotero. kutengera malo ogwirira ntchito ovuta kwambiri.

Kumayambiriro kwa zaka za m'ma 2100, ndi chidziwitso chowonjezeka cha chitetezo cha chilengedwe, zofunikira za ma valve zikukwera kwambiri.Panthawiyi, zida zapulasitiki zatsopano zinagwiritsidwa ntchito popanga ma valve, monga polyetherketone (PEEK), polyimide (PI) ndi zipangizo zina zapulasitiki zogwira ntchito kwambiri.Zidazi zimakhala ndi makina abwinoko komanso kukana dzimbiri, ndipo zimatha kukwaniritsa malo ogwirira ntchito ovuta kwambiri.

Mwachidule, ndi chitukuko cha makampani mankhwala ndi luso mosalekeza wa teknoloji mapulasitiki, mavavu pulasitiki aona chitukuko cha mkulu-ntchito zipangizo pulasitiki kuyambira PVC zipangizo oyambirira mpaka pano, mosalekeza kuwongolera dzimbiri kukana, katundu makina ndi kukula kwa kugwiritsa ntchito, kukhala chida chofunikira komanso chofunikira kwambiri pamafakitale amafuta, petrochemical ndi chitetezo cha chilengedwe.


Nthawi yotumiza: Mar-02-2023