Kwiinkqubo zokudluliselwa kwamanzi, ii-hoses zisebenza njengebhuloho ebalulekileyo phakathi kwezixhobo kunye neendaba, kwaye ukusebenza kwazo kuchaphazela ngokuthe ngqo ukuzinza kunye nokhuseleko lwenkqubo ye-PTFE hoses kunye ne-PVC hoses, njengeentlobo ezimbini eziqhelekileyo zezixhobo ze-hose, nganye ineenzuzo ezizodwa kunye nezicelo. Ukuqonda umahluko phakathi kwazo kunokusinceda senze ukhetho olusengqiqweni olusekelwe kwiimfuno zokwenene.
- Ukuqulunqwa kweekhemikhali kunye nokuzinza
Ithumbu le-PTFE lenziwe ngemathiriyeli ye-polytetrafluoroethylene, enozinzo oluphezulu kakhulu lweekhemikhali kwaye phantse ayichatshazelwa naziphi na izinto. Iyakwazi ukuxhathisa uhlaselo lwemithombo yeendaba ezonakalisayo njengeeasidi, iialkali, neetyuwa. Isakhiwo sayo se-molecular asiqukethe i-carbon-carbon-double bonds ngoko inokumelana ne-oxidation ephezulu. Ngokwahlukileyo, umbhobho wePVC yiresin eyenziweyo eyenziwe ngepolymer ephuma kwivinyl chloride monomers. Nangona ikwanazo ukumelana ne-corrosion elungileyo ukuzinza kwayo kweekhemikhali kunye nokumelana ne-oxidation kusezantsi. Lo mahluko wenza umbhobho we-PTFE ube nenzuzo ngakumbi kwiindawo ezinobume obuphezulu.
- Iimpawu zokusebenza
Imibhobho ye-PTFE iqhuba kakuhle ngokulinganayo ngokwemigaqo yokusebenza. Iindonga zabo zangaphakathi zigudile kunye ne-coefficient ephantsi ye-friction, enokunciphisa ngokufanelekileyo ukuxhathisa ngexesha kunye nokunciphisa ukunxiba kwezixhobo. Ukongeza, imibhobho ye-PTFE inobuxhakaxhaka obuphezulu nobushushu obuphantsi, ibavumela ukuba basebenze ngokuzinzileyo kuluhlu olubanzi lobushushu -250℃ ukuya kwi-260℃ ngaphandle kokuba brittle okanye ukwaluphala. Kwelinye icala, imibhobho ye-PVC, ngelixa inokuguquguquka okuthile kunye nokuqina, ithanda ukuguquka kumaqondo obushushu aphezulu, inciphisa ukusetyenziswa kwayo kwiindawo ezinobushushu obuphezulu.
Imibhobho ye-PTFE, ngenxa yokuzinza kweekhemikhali ezigqwesileyo, ukumelana nobushushu obuphezulu, kunye nokunganyangeki, zisetyenziswa ngokubanzi kumashishini afana neekhemikhali,, igesi yendalo, ukutya, kunye namayeza apho kufuneka khona izixhobo zombhobho ophezulu. Zifaneleke ngokukodwa ukuphatha imidiya eyingozi kunye neendawo ezinoxinzelelo oluphezulu. Ngakolunye uhlangothi, i-hoses ye-PVC, enexabiso eliphantsi kunye nokusebenza kakuhle kokusebenza, isetyenziswa kakhulu kwi-drainage yokwakha, i-ventilation, iinkqubo zokubonelela ngamanzi, kunye nakwiindawo ze-electronics apho ukufakela okuguquguqukayo kunye nokulawulwa kweendleko kuyimfuneko. Kukho umahluko omkhulu kwiipropati eziphathekayo kunye neendawo zokusetyenziswa phakathi kwezi zimbini.
Ukuqukumbela, siphinda sigxininise ukuzodwa kunye nokuhambelana kwezi zixhobo zimbini ze-hose. Imibhobho ye-PTFE, kunye nozinzo lwazo lweekhemikhali ezigqwesileyo eziphantsi kwe-friction coefficient, kunye nokuchasana namaqondo okushisa aphezulu naphantsi, ibe yinto ekhethiweyo yokuvelisa okuphezulu kunye neemeko zokusebenza ezigqithisileyo. Ngakolunye uhlangothi, i-PVC, kunye neendleko-zokusebenza kunye nokukhululeka kokulungiswa, zifumene indawo yazo kumashishini amaninzi. Ukukhetha ukuba yeyiphi i-hose enokusetyenziswa kungekuphela nje inkxalabo-ukusebenza kodwa kunye nokusebenza ngokubanzi kunye nokhuseleko lwenkqubo.
Ixesha lokuposa: Nov-07-2024