Kubomi bemihla ngemihla sinokudla ngokubona ityhubhu ye-ptfe, ke, ityhubhu ye-ptfe kwinkqubo yokucubungula kufuneka sinikele ingqalelo kwizinto ezibalulekileyo?
Kwinkqubo yolwakhiwo lwentsimbi yombhobho we-PTFE, la manqaku alandelayo kufuneka athathelwe ingqalelo:
1. umbhobho wensimbi ongenamthungo ngokobungakanani bezinto eziphathekayo, umbhobho wentsimbi kunye ne-welding ring welding, i-ring ingasebenzisa i-argon arc welding manual, i-welding splash ngefayile yokucoca, kunye ne-fillet weld kwikona ejikelezileyo, akukho bukhali. edge.
2. Gcoba umgodi omncinci ekupheleni kombhobho wensimbi, uphawule ngokucacileyo, kwaye ungawuvali. Lo mngxuma usetyenziselwa ukukhupha igesi eseleyo phakathi kombhobho wentsimbi kunye nombhobho we-tetrafluoroethylene ngexesha lokufudumeza, kwaye isetyenziselwa ukujonga ukuba umbhobho we-tetrafluoroethylene wonakaliswe kwaye uvuze ngexesha lovavanyo loxinzelelo.
3. umbhobho wensimbi kufuneka uhlanganiswe kwangaphambili ngaphambi kokugqoka. Umdibaniso uya kudityaniswa kunye nephedi yegolide ye-asbestos yobungqingqwa obufanelekileyo, ukuze ihambelane neemfuno zobungakanani bubonke emva kokwaleka.
4. emva kokuhlanganiswa kombhobho wentsimbi engenamthungo ukuya kunyango lokuqhushumba kwesanti, ukususa umhlwa ongaphakathi eludongeni, kwaye emva koko ngomoya ocinezelweyo ukucoca umngxuma wombhobho. Faka ityhubhu ye-tetrafluoroethylene kwityhubhu yentsimbi. Ukuba omnye umbhobho wetetrafluoroethylene awungqukuva kwaye awukwazi kufakwa, amanzi ashushu, umphunga okanye isithando somlilo esiphakathi kufuneka sisetyenziswe ukufudumeza umbhobho wetetrafluoroethylene, ubushushu bokufudumala abugqithi kwi-100℃.
5. Cinga ubude be-flanging xa usika umbhobho we-teflon. Ngokuqhelekileyo, ubude be-35-40 bubekwe ecaleni ngaphezu kwendawo yokubeka i-welding. Igaskithi yegolide ye-asbestos kufuneka ibekwe kwityhubhu ye-TEflon phambi kokuba ijike. Ukujingisa ityhubhu ye-teflon kwizinyuko ezimbini, okokuqala kwintsimbi, le flanging usebenzisa isiqwenga se-aluminiyam ephothiweyo. Xa i-flanging, shushu i-vivipary ngedangatye le-oxyacetylene. Ubushushu besixhobo bulinganiswa ngethemometha yomphezulu we-semiconductor. Ubushushu akufunekanga bube phezulu kakhulu. Ubushushu kufuneka bulawuleke phakathi kwe260℃ kunye ne280℃. Xa ujingisa, cofa kancinane phantsi ihempe yokuzala eshushu. Xa i-birthgear ifikelela kumda we-welding ring, ungacinezeli kwakhona. Ngeli xesha, yipholise ngamanzi kwaye uyisuse into yokuzala xa iphola ukuya kubushushu be-ambient. I-flanging yesinyathelo sesibini ngakumbi iplastiki i-nozzle. Le ithe tyaba.
6. emva kokufudumeza, cofa ezantsi ngokucothayo kwaye ucinezele ngokupheleleyo umcaba, kwaye emva koko upholise ngamanzi kubushushu be-ambient, uze ususe iplagi.
7. umbhobho ofakwe ipleyiti eyimfama elungileyo, kwicylinder ekhethekileyo yokufudumeza, eqhagamshelwe kwityhubhu yomoya ecinezelweyo, ukufudumeza isilinda ngendlela ephakathi yokufudumeza amaza okufudumeza, ukuze ubushushu bombhobho bube malunga ne-280℃, kwaye ke ngokucothayo udlule. 8-LOKGF/cm2 ixinaniswe umoya. Faka ityhubhu ye-tetrafluoron kwitanki yamanzi, ntywilisela ityhubhu emanzini, udlule ngokukhawuleza kwi-15kgf / cm2 emoyeni oxinyiweyo, khangela ukuba kukho amaqamza emngxunyeni, ukuba kufunyenwe, kubonisa ukuba ityhubhu ye-tetrafluoron yaphukile. Isizathu ikakhulu kungenxa yokufudumeza okungalinganiyo okanye isantya sokunyuka kwamaxabiso ngokukhawuleza. Umbhobho wentsimbi owenziweyo uya kutywinwa kuzo zombini iziphelo ngepleyiti yomthi oyimfama ukuthintela umonakalo wombhobho wetetrafluoron.
Ixesha lokuposa: May-23-2022