M'machitidwe otengera madzimadzi, ma hoses amakhala ngati mlatho wovuta kwambiri pakati pa zida ndi zofalitsa, ndipo ntchito yawo imakhudza mwachindunji kukhazikika ndi chitetezo cha machitidwe a PTFE hoses ndi PVC hoses, monga mitundu iwiri yodziwika ya zipangizo zapaipi, aliyense ali ndi ubwino wapadera ndi ntchito. Kumvetsa kusiyana kwawo kungatithandize kusankha zinthu mwanzeru potengera zosowa zenizeni.
- Chemical zikuchokera ndi bata
Paipi ya PTFE imapangidwa ndi zinthu za polytetrafluoroethylene, zomwe zimakhala ndi kukhazikika kwamankhwala apamwamba kwambiri ndipo sizimakhudzidwa ndi chilichonse. Imatha kukana kuwononga zinthu zowononga monga ma acid, alkalis, ndi mchere. Mapangidwe ake a molekyulu alibe ma bondi a carbon-carbon double bond kotero amakhala ndi kukana kwambiri kwa okosijeni. Mosiyana ndi izi, payipi ya PVC ndi utomoni wopangidwa ndi polymer kuchokera ku vinyl chloride monomers. Ngakhale ilinso ndi kukana bwino kwa dzimbiri kukhazikika kwake kwamankhwala komanso kukana kwa okosijeni ndizotsika. Kusiyanaku kumapangitsa kuti payipi ya PTFE ikhale yopindulitsa kwambiri m'malo owononga kwambiri.
- Makhalidwe amachitidwe
Ma hoses a PTFE amagwira ntchito mofananamo. Makoma awo amkati ndi osalala komanso otsika kwambiri, omwe amatha kuchepetsa kukana nthawi ndikuchepetsa kuvala kwa zida. Komanso, PTFE mapaipi ali kwambiri mkulu ndi otsika kutentha kukana, kuwalola ntchito stably mu lonse kutentha osiyanasiyana -250 ℃ mpaka 260 ℃ popanda kukhala Chimaona kapena kukalamba. Kumbali inayi, mapaipi a PVC, ngakhale ali ndi kusinthasintha kwina komanso kukhazikika, amatha kusinthika pakatentha kwambiri, ndikuchepetsa kugwiritsidwa ntchito kwawo m'malo otentha kwambiri.
Mapaipi a PTFE, chifukwa cha kukhazikika kwawo kwamankhwala, kukana kutentha kwambiri, komanso kukana kuvala, amagwiritsidwa ntchito kwambiri m'mafakitale monga mankhwala, gasi, chakudya, ndi mankhwala omwe amafunikira zida zopangira mapaipi apamwamba kwambiri. Iwo ali oyenerera makamaka kugwiritsira ntchito zowononga zowononga komanso malo opanikizika kwambiri. Kumbali ina, mapaipi a PVC, okhala ndi mtengo wotsika komanso magwiridwe antchito abwino, amagwiritsidwa ntchito kwambiri pomanga ngalande, mpweya wabwino, makina operekera madzi, komanso m'minda yamagetsi komwe kuyika kosinthika ndi kuwongolera mtengo ndikofunikira. Pali kusiyana kwakukulu muzinthu zakuthupi ndi magawo ogwiritsira ntchito pakati pa ziwirizi.
Pomaliza, tikugogomezeranso zapadera komanso kugwirizana kwa zida ziwirizi. Mapaipi a PTFE, okhala ndi kukhazikika kwawo kwamankhwala otsika kwambiri, komanso kukana kutentha kwambiri komanso kutsika, akhala zinthu zomwe amakonda kwambiri popanga zinthu zapamwamba komanso zogwira ntchito kwambiri. Kumbali inayi, PVC, ndi kutsika mtengo kwawo komanso kosavuta kukonza, apeza malo awo m'mafakitale osiyanasiyana. Kusankha kwa payipi yoti mugwiritse ntchito sikuti kumangokhudza-kuchita bwino komanso magwiridwe antchito onse ndi chitetezo chadongosolo.
Nthawi yotumiza: Nov-07-2024