Ekuphileni kwansuku zonke singakwazi ukubona i-ptfe tube, ngakho-ke, i-ptfe tube in the process of processing sidinga ukunaka lokho okubalulekile?
Enqubweni yokwakhiwa kwepayipi le-PTFE elinensimbi, amaphuzu alandelayo adinga ukunakwa:
1. ipayipi lensimbi elingenamthungo ngokuya ngobukhulu bezinto ezibonakalayo, ipayipi lensimbi kanye nendandatho yokushisela, indandatho ingasebenzisa i-argon arc welding manual, i-welding splash enefayela ukuyihlanza, kanye ne-fillet weld ekhoneni eliyindilinga, akukho okubukhali. umphetho.
2. Geza imbobo encane ekugcineni kwepayipi lensimbi, uyiphawule ngokucacile, futhi ungayivimbi.Le mbobo isetshenziselwa ukukhipha igesi esele phakathi kwepayipi lensimbi nepayipi le-tetrafluoroethylene ngesikhathi sokushisa, futhi isetshenziselwa ukubuka ukuthi ipayipi le-tetrafluoroethylene lonakele futhi liyavuza yini ngesikhathi sokuhlolwa kwengcindezi.
3. ipayipi lensimbi kufanele lihlanganiswe ngaphambili ngaphambi kolwelwesi.Ijoyinti lizohlanganiswa nephedi yegolide ye-asbestos enogqinsi olufanele, ukuze ihambisane nezidingo zosayizi zizonke ngemva kolayini.
4. ngemva kokuhlanganiswa kwepayipi lensimbi engenamthungo ekwelapheni ukuqhunyiswa kwesihlabathi, ukususa ukugqwala kwangaphakathi odongeni, bese kuba nomoya ocindezelwe ukuhlanza imbobo yeshubhu.Faka ithubhu ye-tetrafluoroethylene epayipini lensimbi.Uma elinye ipayipi le-tetrafluoroethylene lingeyindilinga futhi lingakwazi ukufakwa, amanzi ashisayo, isitimu noma isithando somlilo esiphakathi nendawo kufanele sisetshenziselwe ukushisisa ipayipi le-tetrafluoroethylene, izinga lokushisa lokushisa alidluli ku-100 ℃.
5. Cabanga ngobude be-flanging lapho usika ipayipi ye-teflon.Ngokuvamile, ubude be-35-40 bubekwe eceleni ngaphezu kwendawo yendandatho yokushisela.I-asbestos gasket yegolide kufanele ibekwe eshubhuni le-TEflon ngaphambi kokuvuleka.Ukuphehla ishubhu ye-teflon ngezinyathelo ezimbili, okokuqala ibe yinsimbi, lokhu kuphephuka kusetshenziswa ucezu olucijile lwe-aluminium.Lapho i-flanging, ukushisa i-vivipary ngelangabi le-oxyacetylene.Izinga lokushisa le-fixture likalwa nge-thermometer ye-semiconductor surface.Izinga lokushisa akufanele libe phezulu kakhulu.Ukushisa kufanele kulawulwe phakathi kuka-260 ℃ no-280 ℃.Uma i-flanging, cindezela kancane kancane ingubo yokuzalwa ene-tapered.Lapho into yokuzalwa ifinyelela onqenqemeni lwendandatho yokushisela, ungabe usacindezela.Ngalesi sikhathi, yipholise ngamanzi bese ukhipha izinto zokuzalwa uma iphola ifinyelela ezingeni lokushisa elizungezile.I-flanging yesinyathelo sesibili iqhubezela phambili ipulasitiki.Lesi sicaba.
6. ngemva kokushisa, cindezela kancane kancane bese ucindezela ngokuphelele flat, bese upholisa ngamanzi ukuya ezingeni lokushisa elizungezile, bese ukhipha ipulaki.
7. ipayipi elilayishiwe elinepuleti eliyimpumputhe elihle, kusilinda esikhethekile sokushisisa, esixhunywe kushubhu lomoya elicindezelwe, lishisisa isilinda ngendlela yokushisisa imvamisa emaphakathi, ukuze izinga lokushisa lilonke lepayipi lifinyelele cishe ku-280 ℃, bese lidlula kancane. 8-LOKGF/cm2 umoya ocindezelweyo.Faka ishubhu le-tetrafluoron ethangini lamanzi, cwilisa ithubhu emanzini, kancane kancane udlule emoyeni ocindezelwe ongu-15kgf/cm2, uhlole ukuthi akhona yini amabhamuza emgodini, uma kutholakala, kufakazela ukuthi ishubhu le-tetrafluoron liphukile.Isizathu ngokuyinhloko kungenxa yokushisa okungalingani noma isivinini sokwehla kwamandla emali ngokushesha okukhulu.Ipayipi lensimbi elifakwe ulayini kufanele livalwe kuzo zombili iziphetho ngepuleti eliyimpumputhe lezinkuni ukuvimbela ukulimala kwepayipi le-tetrafluoron.
Isikhathi sokuthumela: May-23-2022