Kwicandelo lezinto zeplastiki,I-PTFE(i-polytetrafluoroethylene) ivelele njengesisombululo esibalaseleyo nesinokuguquguquka kwiindlela ezahlukeneyo zokusebenza. Ngenxa yeempawu zayo ezintle kunye noluhlu olubanzi lwezicelo, iye yaba yinto ebaluleke kakhulu kwiindlela ezahlukeneyo zokusebenza. Kule posi yebhlog, siza kuhlola iimpawu kunye neenzuzo zeentonga ze-PTFE, ezifumaneka kwiindlela ezikhutshiweyo kunye nezibunjiweyo.
Ukuqala ngeentlobo ezikhutshiweyo, ezi ntonga zenziwe ngobukhulu obuqhelekileyo, ukusuka kwi-1/8" ububanzi ukuya kwi-8". Ubude ngokubanzi bentonga ekhutshiweyo ye-PTFE bumalunga ne-1000mm, nto leyo eyenza ukuba isetyenziswe ngokubanzi. Kwelinye icala, ezikhutshiweyoIntonga ye-PTFEIi-s zifumaneka ngobubanzi obufikelela kwi-intshi ezili-16 kwaye ubude obuphezulu buyi-300 mm. Uluhlu olubanzi lokukhetha ubungakanani luqinisekisa ukuba abathengi banokufumana imveliso efanela iimfuno zabo ezithile.
Enye yeenzuzo ezibalulekileyo zeIntonga ye-PTFEs kukusebenza okuphuculweyo ngokusebenzisa izixhobo zokuzalisa (ukuqinisa). Ezi ntonga zingenziwa ngezinto ezahlukeneyo zokuqinisa ezifana ne-fiberglass, i-graphite kunye ne-bronze. Ezi zinto zokuqinisa ziphucula kakhulu iipropati zoomatshini ze-PTFE, nto leyo eyenza ukuba ibe lukhetho olufanelekileyo kwizicelo ezifuna amandla.
Ukumelana nemozulu yenye yezona mpawu ziphambili zeentonga ze-PTFE, ezi zinto ziphila ixesha elide phakathi kweeplastiki. Oku kuthetha ukuba iintonga ze-PTFE zinokumelana neemeko zemozulu ezinzima ngaphandle kokulahlekelwa ziimpawu zazo okanye ukonakala ngokuhamba kwexesha. Ukongeza,Intonga ye-PTFEZinokumelana nokugqwala okugqwesileyo, nto leyo eyenza ukuba zilungele ukusetyenziswa kwe-asidi enamandla, iziseko, amanzi, kunye nezinye izinyibilikisi zendalo.
Olunye uphawu oluphawulekayo lweentonga zePTFE kukutyeba kwazo okuphezulu, okuqhelekileyo kuthathwa njengezona zincinci kakhulu zokutyeba phakathi kweeplastiki. Njengoko i-coefficient yokutyeba iphantsi njenge-0.04, iintonga zePTFE zibonelela ngokutyeba okugqwesileyo, kunciphisa ukuguguleka kwaye ziqinisekisa ukusebenza kakuhle kwiindlela ezahlukeneyo zokusebenza.
Enye yeendawo apho i-PTFE ikhanya khona ngokwenene kukukwazi kwayo ukumelana namaqondo obushushu aphezulu.Intonga ye-PTFEIi-s zinokumelana nobushushu benkonzo yexesha elide obungama-200 ukuya kuma-260 degrees Celsius, nto leyo ezenza zilungele ukusetyenziswa kwiindawo ezinobushushu obuphezulu kakhulu. Olu xhathiso lobushushu oluphezulu luphucula ngakumbi ukuthembeka nokuqina kweentonga ze-PTFE.
Ngokwahlukileyo koko, ii-PTFE rods zikwabonisa ukusebenza kakuhle kakhulu kumaqondo obushushu aphantsi. Nokuba ubushushu buhla bufikelele kwi--196 degrees Celsius, i-PTFE rod isenokugcina ubude be-5%, ibonise ukuguquguquka kwayo okugqwesileyo kunye nokuthamba phantsi kweemeko ezibandayo kakhulu.
Ukongeza, iintonga ze-PTFE zinokukrolwa ngeenjongo zokubopha, okuvumela uqhagamshelo olukhuselekileyo kunye nokuguquguquka kwesicelo. Le propati yenza iintonga ze-PTFE zilungele iiprojekthi ezahlukeneyo zesakhiwo kunye nobunjineli.
Ukuqukumbela, iintonga ze-PTFE zisisombululo esiguquguqukayo nesinokuthenjwa esineempawu ezimangalisayo. Zifumaneka kwiindlela ezikhutshiweyo nezibunjiweyo, kunye neendlela ezahlukeneyo zokukhetha ubungakanani, nto leyo evumela ukuguquguquka ukuhlangabezana neemfuno ezahlukeneyo zokusetyenziswa. Ukusebenza okuphuculweyo okufezekiswa zizinto zokuqinisa kwandisa uluhlu lokusetyenziswaIintonga ze-PTFEUkususela kwimozulu nokunganyamezelani nokugqwala ukuya ekutshiseni okuphezulu, ukumelana nobushushu kunye nokusebenza okungaqhelekanga, ii-PTFE rods zibonelela ngokudibanisa okungenakufaniswa neempawu. Ngoko ke nokuba ufuna izinto ezithembekileyo zokusetyenziswa kwezakhiwo, ishishini leekhemikhali, okanye ngenye indlela, cinga ngee-PTFE rods ngenxa yokusebenza kwayo okuhle kunye nokuqina kwayo okuhlala ixesha elide.
Ixesha lokuthumela: Agasti-30-2023
