I-PIR noma i-PVC: Khetha impahla efanelekile yokuphumula

Lapho ufuna izintambo nezintambo ezihamba phambili, ukukhetha izinto ezifanele zokufutheka kubalulekile. I-Outer Sheath inemisebenzi ehlukahlukene yokuqinisekisa ukuqina, ukuphepha kanye nokusebenza kwentambo noma ngocingo. Akujwayelekile ukuthi kunqume phakathi kwe-polyurethane (i-pur) kanyeI-Polyvinyl Chloride (PVC). Kulesi sihloko, uzofunda ngokuhlukahluka kokusebenza phakathi kwezinto zokwakha ezimbili kanye nezicelo zokusebenza ngakunye okuhambisana kahle.

Ukwakheka nokusebenza kwezintambo nezintambo

I-sheath (ebizwa nangokuthi i-sheath yangaphandle noma i-sheath) isendlalelo esingaphandle sekhebula noma ucingo futhi isetshenziswa kusetshenziswa enye yezindlela ezimbalwa zokukhishwa. I-Sheath ivikela abaqhubi bekhebula nezinye izingxenye ezihlelekile ezivela ezintweni zangaphandle ezinjengethonya lokushisa, elibandayo, elimanzi noma lamakhemikhali nelimakhemikhali. Kungalungisa nokwakheka kanye nefomu lomqhubi ogaxekile, kanye nesendlalelo sokuvikela (uma ekhona), ngaleyo ndlela kunciphise ukuphazanyiswa ngokuhambisana kwe-electromagnetic (EMC). Lokhu kubalulekile ukuqinisekisa ukudluliswa kwamandla okungaguquki kwamandla, isiginali, noma idatha ngaphakathi kwekhebula noma ngocingo. I-Sheaning nayo idlala indima ebalulekile ekunciphiseni kwezintambo nezintambo.

Ukukhetha izinto ezifanele zokufutheka kubalulekile ekunqumeni ikhebula elihle kakhulu ngohlelo ngalunye. Ngakho-ke, kubalulekile ukwazi kahle ukuthi iyiphi inhloso ikhebula noma ucingo okufanele lusebenze futhi yiziphi izidingo okufanele zihlangane nazo.

Impahla evame ukuhehela

I-Polyurethane (i-pur) ne-polyvinyl chloride (PVC) yilezi zinto ezimbili ezisetshenziswa kakhulu izintambo zezintambo nezintambo. Ngokwengqondo, akukho mehluko phakathi kwalezi zinto, kepha zibonisa izakhiwo ezihlukile ezizenza zilungele izinhlelo zokusebenza ezihlukile. Ngaphezu kwalokho, ezinye izinto eziningi zingasetshenziswa njengezinto zokwenziwa, kufaka phakathi irabha yezentengiso, i-thermoplastic elatomers (TPE), kanye namakhompiyutha akhethekile epulasitiki. Kodwa-ke, ngoba ajwayelekile kakhulu kune-pur ne-PVC, sizoqhathanisa lezi ezimbili kuphela ngokuzayo.

I-PIR - isici esibaluleke kakhulu

I-Polyurethane (noma i-pur) ibhekisa eqenjini lamapulasitiki athuthukiswe ngasekupheleni kwawo-1930s. Kukhiqizwa yinqubo yamakhemikhali ebizwa nge-Polymerization. Izinto ezivuthiwe zivame ukuba yi-petroleum, kepha izinto zezitshalo ezinjengamazambane, ama-corn noma ama-beet angasetshenziswa nasekukhiqizweni kwawo. I-Polyurethane i-thermoplastic elatomer. Lokhu kusho ukuthi bayavumelana nezimo lapho befudumeza, kepha bangabuyela esimweni sabo sokuqala lapho befudumele.

I-Polyurethane inezakhiwo ezinhle kakhulu zemishini. Izinto ezibonakalayo zinokumelana kahle nokuqina kokuqina, ukusika ukumelana nokumelana nezinyembezi, futhi kuhlala kuvumelana nezimo okuguquguqukayo ngisho nasemazingeni aphansi. Lokhu kwenza i-pur ilungele ikakhulukazi izinhlelo zokusebenza ezidinga ukunyakaza okunamandla nezidingo zokugoba, njengokudonsa amaketanga. Kuzinhlelo zokusebenza ze-robotic, amakhebuli ane-purphung angakwazi ukubekezelela izigidi zemijikelezo egoba noma amabutho aqinile okuhlobisa ngaphandle kwezinkinga. I-Pur futhi imelana namafutha aqinile kumafutha, izixazululo nemisebe ye-ultraviolet. Ngaphezu kwalokho, ngokuya ngokwakheka kwezinto ezibonakalayo, i-halogen-free retardant, okuyinqubo ebalulekile yezintambo eziqinisekisiwe eziqinisekisiwe ze-ul futhi ezisetshenzisiwe e-United States. Izintambo zokuhlanza zivame ukusetshenziswa emshinini nasekwakhiweni kwefekthri, ezenzakalelayo zezimboni, kanye nomkhakha wezimoto.

I-PVC - Isici esibaluleke kakhulu

I-Polyvinyl Chloride (PVC) ipulasitiki elisetshenziselwe ukwenza imikhiqizo ehlukene kusukela ngawo-1920s. Kungumkhiqizo we-polymerization yegesi ye-vinyl chloride. Ngokungafani ne-elastomer pur, i-PVC iyi-polymer ye-thermoplastic. Uma okuqukethwe kukhubazekile ngaphansi kokushisa, akunakubuyiselwa esimweni sayo sokuqala.

Njengezinto ezifungelayo, i-polyvinyl chloride inikezela ngamathuba ahlukahlukene ngoba iyakwazi ukuzivumelanisa nezidingo ezahlukahlukene ngokushintsha isilinganiso sayo sokwakhiwa. Umthamo wayo wemishini kamashini awuphakeme njenge-pur, kepha i-PVC nayo imnotho kakhulu; Intengo ephakathi ye-polyurethane ephakeme kane. Ngaphezu kwalokho, i-PVC ingenaphutha futhi imelana namanzi, acid kanye nokuhlanza ama-ejenti. Kungenxa yalesi sizathu ukuthi kuvame ukusetshenziswa embonini yokudla noma ezindaweni ezinomswakama. Kodwa-ke, i-PVC ayiyona i-halogen-free, yingakho ibonwa ingakulungele izicelo ezithile zasendlini. Ngaphezu kwalokho, akuwona ukumelana no-oyela engozini, kepha le mpahla ingatholwa izithasiselo ezikhethekile zamakhemikhali.

Ukugcina

Kokubili i-polyurethane ne-polyvinyl chloride zinezinzuzo zazo nokubi njengekhebula nezinto zokwenziwa zocingo. Ayikho impendulo echazayo lapho impahla engcono kakhulu kuhlelo lokusebenza oluthile oluthile; Okuningi kuya ngezidingo zomuntu ngamunye. Kwezinye izimo, izinto ezihluke ngokuphelele ze-Sheasting zingaba yisixazululo esifanelekile. Ngakho-ke, sigqugquzela abasebenzisi ukuthi bafune izeluleko kochwepheshe abajwayelene nezinto ezinhle nezingezinhle zezinto ezahlukahlukene futhi bangacacana.