1.Induku yokushisela kufanele igcinwe yomile ngesikhathi isetshenziswa. Uhlobo lwe-calcium titanate luzomiswa ku-150'C ihora elingu-1, futhi uhlobo oluphansi lwe-hydrogen luzomiswa ku-200-250 ℃ ihora elingu-1 (ukomisa ngeke kuphindwe izikhathi eziningi, ngaphandle kwalokho isikhumba kulula crack and peel off) ukuvimbela isikhumba senduku yokushisela, uwoyela onamathelayo nokunye ukungcola, ukuze ugweme ukukhulisa okuqukethwe kwekhabhoni endaweni yokushisela futhi kuthinte izinga lokushisela.
2.Ngesikhathi sokushiselainsimbi engagqwali flangeukufakwa kwamapayipi, ama-carbides ancishiswa ukushisa okuphindaphindiwe, okunciphisa ukugqwala kanye nezakhiwo zemishini.
3.I-standard standard yaseMelika eqinile yokufakwa kwepayipi lensimbi engagqwali ye-chrome ngemuva kokushisela inkulu futhi kulula ukuqhekeka. Uma uhlobo olufanayo lwe-electrode yensimbi engagqwali ye-chromium (G202, G207) isetshenziselwa ukushisela, ukushisa kuqala ngaphezu kuka-300 ℃ kanye nokwelashwa kokupholisa okuhamba kancane cishe ku-700 ℃ ngemva kokushisela kuyadingeka. Uma ukushisela kungeke kube ngaphansi kokwelashwa kokushisa kwangemva kokushisela, i-electrode yepayipi yensimbi engenasici (A107, A207) izokhethwa.
I-4.Nge-flange yensimbi engagqwali, inani elifanele lezinto zokuzinza ezifana ne-Ti, Nb ne-Mo zengezwa ukuze kuthuthukiswe ukumelana nokugqwala kanye nokushisela. I-weldability ingcono kunaleyo ye-chrome stainless steel flange. Lapho kusetshenziswa uhlobo olufanayo lwe-chrome yensimbi engagqwali ye-flange welding stick (G302, G307), ukushisa kuqala ngaphezu kuka-200 ℃ kanye nokushisa okungaba ngu-800 ℃ ngemva kokushisela kuzokwenziwa. Uma i-weldment ingakwazi ukuphathwa ngokushisa, i-electrode yepayipi ye-stainless steel flange (A107, A207) izokhethwa.
5.Insimbi engagqwali flange ukufakwa kwamapayipi kanye nezinduku zokushisela i-butt-welding flange zinokumelana nokugqwala okuhle nokumelana namakhemikhali, futhi zisetshenziswa kabanzi ekukhiqizeni amakhemikhali, umanyolo, uphethiloli nemishini.
6.Ukuze uvimbele ukugqwala kwamehlo okubangelwa ukushisa kwekhava ye-flange, i-welding current akufanele ibe nkulu kakhulu, cishe ngo-20% ngaphansi kwe-carbon steel electrode, i-arc akufanele ibe yinde kakhulu, futhi ukupholisa kwe-inter-layer akufanele kuhambe kancane, futhi ubuhlalu obuncane bokushisela kufanele bukhethwe.
I-carbon steel flange isetshenziswa ngendlela ekhethekile, ngakho idinga ubushelelezi, i-tensile, i-compressive, i-torsional nezinye izici zezinto zokwakha. Ingasetshenziswa ngaphansi kwengcindezi ephezulu ngaphandle kokuhlanekezela. Ngenxa yokuthi i-carbon steel inama-burrs ambalwa, amandla ayo okushayisana nawo mancane kakhulu, futhi angasetshenziswa kakhulu ezintweni zokusebenza.
Ngaphezu kwalokho, ama-flange ensimbi ekhabhoni kufanele enziwe ngokuhambisana ngokuqinile nezindinganiso zemboni zaseChina noma ezifanele. Ungalokothi usebenzise izinto ezingafanelekile ukuzenza. Uma ungakwazi ukusika amakhona ngosayizi, lezi zindlela ezingosomathuba zizoholela emikhiqizweni esezingeni eliphansi nengafaneleki, okuzodala ukwehluleka kulo lonke uhlelo lwesiFulentshi, kubangele nokulahleka kwempahla ngokomnotho kanye nokufa kwabantu nezinye izingozi ezinzile.
Noma ubani oke wezwa nge-carbon steel flange uyazi ukuthi ukubunjwa kwayo kuyinkimbinkimbi kakhulu. Ngokuphathelene nezinto zayo, i-carbon steel nayo ihlukile kwezinye izinsimbi, futhi ukusebenza kwayo kungcono kunokwensimbi. Ngakho i-flange enhle ngokuvamile yenziwe nge-carbon steel, okungukuthi, okuthiwa, i-carbon steel flange. Ngaphezu kwe-carbon, i-carbon steel ngokuvamile iqukethe inani elincane le-silicon, i-manganese, isulfure, i-phosphorus nezinye izinto, ngakho-ke inomsebenzi wayo ezintweni.
Indlela yokulinganisa ye-carbon steel flange nomsebenzi wokulungiselela ngaphambi kokulinganisa izokwethulwa kafushane ngumhleli.
1.Ngesikhathi sokulinganisa, kufanele kuhlelwe abantu abathathu, ababili kubo bayakala, oyedwa uyabheka futhi agcwalise ifomu. Uma ungekho umbandela wokusebenzisa i-caliper yangaphandle nerula yensimbi, i-caliper ingasetshenziswa njengethuluzi lokulinganisa. Ukukala kuwumsebenzi ocophelelayo kanye nemfuneko yokufakwa kwempahla. Isilinganiso nerekhodi kuzolungiswa ngendlela efanele, futhi ifomu kufanele ligcwaliswe ngokucophelela nangokucacile. Emsebenzini wokulinganisa wangempela. Ukuze sibambisane, kufanele sikwazi ukubambisana futhi sisebenzise ngokuvumelana nezimiso ezifanele.
2.Ngokwesikhundla se-flange enkulu ngaphambi kokulinganisa, umdwebo wokuxhuma kanye nenombolo ye-flange enkulu yemishini kufanele idwetshwe ekuqaleni, ukuze i-fixture ifakwe ngokuvumelana nezindlela nezimiso ezihambisanayo, kanye nokusetshenziswa okuvamile. kunganqunywa.
3.Ngenxa yokuthi ububanzi obungaphandle be-carbon steel flange bungase buhluke, imbobo engalungile (isikhungo esihlukile) kanye nobukhulu be-gasket buhlukile, ukulungiswa okucutshunguliwe akufanele kushintshwe ne-side carbon steel flange, ngakho-ke ukulinganisa ubukhulu kanye Inani lengxenye ngayinye liyisihluthulelo. Ukucubungula nokufakwa kwe-Ixtere.
I-Carbon steel flangeszisetshenziswa kabanzi ezinhlelweni zansuku zonke, futhi ukusetshenziswa akuhamba kancane. Ngakho-ke, ukugcinwa okuvamile kwe-carbon steel flanges kudinga ukuba nemithetho ehambisanayo ukuze kugcinwe ikhwalithi ye-carbon steel flanges ngangokunokwenzeka futhi kuthuthukise isivinini sokusebenza. Lapha sabelana nawe ngokusebenza okuzinzile kwensimbi engagqwali namaflange ensimbi ye-carbon nokuthi yikuphi ukunakekelwa okufanele kwenziwe:
1.Lapho i-carbon steel flange ivaliwe, kusekhona okunye okuphakathi kwesokunxele emzimbeni we-valve, futhi ithwala ingcindezi ecacisiwe. Ngaphambi kokulungisa i-carbon steel flange, vala ivalve yokuvala phambi kwe-carbon steel flange, vula i-carbon steel flange ukuze ilungiswe, futhi ukhulule ngokuphelele ukucindezela kwangaphakathi komzimba we-valve. Esimeni se-electric carbon steel flange noma i-pneumatic ball valve, amandla nomoya kufanele kunqanyulwe ekuqaleni.
2.Ngokuvamile, i-soft sealing carbon steel flange isebenzisa i-tetrafluoroethylene (PTFE) njengento yokuvala, futhi indawo yokuvala ye-valve yebhola eqinile yenziwe ngokuvela kwensimbi. Uma kudingekile ukuhlanza i-valve yebhola yepayipi, ukunakekelwa kufanele kuthathwe ukuvimbela ukuvuza ngenxa yokulimala kwendandatho yokuvala ngesikhathi sokuqaqa.
3.Uma uhlakaza i-carbon steel flange, ama-bolts namantongomane ku-flange kufanele alungiswe kuqala, bese wonke amantongomane aqiniswe kancane futhi aqiniswe ngokuqinile. Uma amantongomane angawodwa elungiswa kahle ngaphambi kokuba kulungiswe amanye amantongomane, indawo ye-gasket izolimala noma iqhekeke ngenxa yokulayisha okungalingani phakathi kobuso be-flange, okuholela ekuvuzeni okuphakathi kokuhlangana kwe-valve flange butt.
4.Uma i-valve ihlanzwa, i-solvent esetshenzisiwe ngeke ingqubuzane nezingxenye ezizohlanzwa futhi ngeke zigqwale. Uma kuyi-carbon steel flange yegesi, ingahlanzwa ngophethiloli. Ezinye izingxenye zingahlanzwa ngamanzi abuyiselwe. Ngesikhathi sokuhlanza, uthuli olusele, amafutha nokunye okunamathiselwe kuzohlanzwa ngokuphelele. Uma zingakwazi ukuhlanzwa ngamanzi ahlanzekile, zingahlanzwa ngotshwala nezinye izinto zokuhlanza ngaphandle kokulimaza umzimba we-valve kanye nezingxenye. Ngemuva kokuhlanza, linda ukuthi i-ejenti yokuhlanza iguquke ngaphambi kokuhlanganisa.
5.Uma ukuvuza okuncane kutholakala ekupakishweni ngesikhathi sokusetshenziswa, i-valve rod nut ingaqiniswa kancane kuze kuphele ukuvuza. Ungaqhubeki uqinisa.
6.Ngaphambi kokusetshenziswa, ipayipi kanye nengxenye echichimayo ye-valve yomzimba kufanele ihlanzwe ngamanzi ukuze kuvinjelwe amafayili ensimbi asele kanye nezinye izinto ezihlukene ukuthi zingangeni emgodini ongaphakathi womzimba wevalvu.
Ngaphezu kwalokho, uma i-carbon steel flange ibekwe ngaphandle isikhathi eside, futhi azikho izinyathelo zokwesaba amanzi, kuzoholela ekugqwaleni kweminye imizimba ye-valve nezingxenye. Ngale ndlela, kuyadingeka ukuhlola ukuzinza kwe-carbon steel flange ngesikhathi sokusetshenziswa.
Isikhathi sokuthumela: Feb-07-2023
