Iimathiriyeli ekrwada yePTFE gasketsbabe nobushushu obukhoyo kunye namaxabiso oluhlu loxinzelelo olusebenzayo.Uninzi lwee-gaskets alunakusetyenziselwa ukushisa okuphezulu kunye noxinzelelo oluphezulu lokusebenza.Xa ukhetha i-gasket, kufuneka kuqala yamkelwe ngokuhambelana nobushushu bokusebenza kwe-gasket, uxinzelelo olusebenzayo, kunye nexabiso le-Pr.
Iimathiriyeli ekrwada yePTFE gasketsbabe nobushushu obukhoyo kunye namaxabiso oluhlu loxinzelelo olusebenzayo.Uninzi lwee-gaskets alunakusetyenziselwa ukushisa okuphezulu kunye noxinzelelo oluphezulu lokusebenza.Xa ukhetha i-gasket, kufuneka kuqala yamkelwe ngokuhambelana nobushushu bokusebenza kwe-gasket, uxinzelelo olusebenzayo, kunye nexabiso le-Pr.
Iimathiriyeli ekrwada ze-PTFE gaskets kufuneka zixhathise ukubola kweekhemikhali kunye nokubola komzimba.I-gaskets efanelekileyo kufuneka isetyenziswe ngokwezona ntlobo zezinto zokusebenza kunye neempawu zokubola, kwaye ke ukuxhathisa kwe-hydrodynamic corrosion ye-gasket ekrwada kufuneka kuthathelwe ingqalelo.Uxhathiso lwe-hydrodynamic corrosion ngokubanzi luboniswa kukwanda kobunzima kunye nobunzima be-gasket material emva kokungena kolwelo.Kwii-gaskets ezichaphazela izinto ezingezizo zeplastiki, ukugcina izinga elifanelekileyo lokunyuka kobunzima bezinto ze-gasket kunenzuzo ekuphuculeni ukusebenza kokutywinwa phantsi kwesiseko sokuqinisekisa ezinye iipropati.
Umyinge wokuphumla ohambahambayo we-PTFE gasket yeyona parameter yovavanyo lomgangatho wokusebenza kwemathiriyeli ye-gasket.Ibonisa amandla ezinto ze-gasket ukuxhathisa ukuphumla koxinzelelo kunye ne-creep deformation.jikelele.Incinci i-creep relaxation ratio, inkulu uxinzelelo lwangaphakathi ngexesha lomsebenzi.Okona kulungileyo ukusebenza kokutywinwa kokwegaskiti ezingezizo zeasbestos.Ukuphumla kwe-Creep sesona sizathu siphambili sokuvuza kwe-looper flange ngexesha lomjikelo wokusebenza.Idlala umphumo wokwenza isigqibo kubomi benkonzo yoqhagamshelwano.Ukusebenza kwe-shrinkage ye-PTFE gasket ibonisa i-ductility okanye i-deformation yeplastiki ye-gasket phantsi kwesiphumo somthwalo womzuzwana.Ukwenza ukusilela okwahlukeneyo kumphezulu weflange.Ngaloo ndlela, ukusebenza kokuthintela ukuvuza.
Ngokuqhelekileyo, uninzi lwentsebenzo ecuthekayo yee-gaskets ezingezizo ze-asbestos zinokuqwalaselwa njengemimiselo yokutywinwa.Xa kuthelekiswa nokwandiswa, ukusebenza kokuqina yeyona nto ibalulekileyo yesalathiso.Ukusebenza kokuqina kubhekiselele kwimbuyekezo ye-ductility ye-gasket, enokuthi ilandele ukuhlukana kwe-flange ngenxa yokushisa okanye umthwalo wesixhobo somatshini ukugcina itywina.Ukusebenza kwe-PTFE gasket ngowona msebenzi uphambili womgangatho we-gasket, kwaye izinga lokuvuza lixabiso lesalathisi esibonakalayo.Ngokusekwe kwixabiso lesalathiso somlinganiselo wokuvuza, ukukwazi ukutywinwa kwe-gasket kunokuhlahlelwa ngokobungakanani kwaye kuthelekiswe.Umlinganiselo wokuvuza yiparameter esisiseko ekufuneka iqwalaselwe xa ukhetha iigaskets.
Izinto ezi-4 ezifunekayo xa ufaka i-PTFE Gaskets
1. Umgca wokutywina okanye indawo ephakanyisiweyo ye-PTFE gasket seal mayingonakali.I PTFE gasket itywina kwimboniselo yesicwangciso inokusebenzisa imingxunya yangaphakathi ekhohlo nasekunene.Ukutywinwa kokutywinwa kwe-PTFE gasket seal yomatshini wokwenziwa koxinzelelo olukhulu lolwelo lusekwe ikakhulu kwishafti okanye umngxuma.Umgca womlomo ohambelana kakuhle kufuneka uqaphele kakhulu kuyo yonke inkqubo yokufakela, ukuthutha kunye nokugcinwa.Le nxalenye yenziwe ngegraphite ethambileyo kwaye ekwazi ukumelana nococeko oluphezulu, ifayibha yemichiza, irabha, kunye neplastiki ekwaziyo ukumelana nokubola, ubushushu obuphezulu kunye nokuguga.Ibhodi ye-insulation kunye nezinye izinto ezinjalo ezisengozini zenziwe ngezinto, ngoko xa zonakalisiwe, ziya kubangela ingozi enkulu efihliweyo kwindawo yokutywinwa.
2. Xa ufaka i-PTFE gasket seals, kufuneka silumke kakhulu, kwaye inkqubo yofakelo kufuneka iqhutywe ngokuthe ngcembe.Ngexesha lenkqubo yofakelo iyonke, musa ukunyanzela ufakelo nge posture enkulu kakhulu, nto leyo eya kwenza wonke umntu PTFE gasket seals.Isakhiwo sokuqala secandelo esele silungisiwe satshatyalaliswa.
3. Ufakelo lwezitywina ze-PTFE zegasket kufuneka luhambelane ne-symmetry kunye nebhalansi.Xa ufaka, beka i-PTFE gasket seal kwindawo yomlomo obambekileyo (okanye umgangatho ophakanyisiweyo ophakamileyo) ukuphepha umsebenzi wesoftware yenkqubo Ngexesha lenkqubo yonke, ngenxa yotshintsho (umzekelo, ukwanda) kweemeko zayo zokusebenza, ukusilela okubangelwayo. ngokuvuza kancinci kwenzeke.Kuyimfuneko ukuba ngokuqhubekayo ujonge kwaye wenze umsebenzi olungileyo kwinyathelo elilandelayo le-PTFE gasket seal.
4. I-PTFE gasket inokusebenza okubanzi, ukumelana nobushushu, ukumelana nokugqwala, ukungagungqi, ukuzithambisa, ukusebenza kwe-electrochemical, kunye nokuxhathisa okuphantsi kakhulu kwe-friction.
Njengeemveliso zerabha, iigaskets ezilungisiweyo ze-PTFE zingenziwa kwimibhobho ye-polytetrafluoroethylene, iintonga, amabhanti, iipleyiti, iifilimu zeplastiki, njl. . Ngokuqhelekileyo zisetyenziswa kwimibhobho ekwazi ukumelana nokutyiwa, izixhobo, iimpompo, iivalvu kunye nokubhaqwa kwerada yolawulo, unxibelelwano olukwi-frequency ephezulu. izixhobo, izixhobo zonxibelelwano ezingenazingcingo, njl.
Zonke izihluzi ezinokuthwala ubushushu be-calcination ye-PTFE zongezwa kwi-tetrafluoroethylene gasket elungisiweyo.Iindidi zokuzalisa ziquka i-fiber yeglasi, izinto zetsimbi, i-oxides yesinyithi, i-graphite ephezulu, i-molybdenum disulfide, i-carbon fiber soft, ifilimu ye-Polyimide, njl., ukusebenza kwezixhobo zoomatshini kunokuphuculwa kakhulu.Ukongeza, ezinye iipropathi ze-PTFE zinokugcinwa, kwaye ukuxhathisa ukunxiba kunye nexabiso le-PV linokunyuswa ngamaxesha e-1000.
Ixesha lokuposa: Aug-17-2020