1.Intonga ye-welding iya kugcinwa yomile ngexesha lokusetyenziswa. Uhlobo lwe-calcium titanate luya komiswa kwi-150'C ngeyure eli-1, kwaye uhlobo oluphantsi lwe-hydrogen luya komiswa kwi-200-250 ℃ ngeyure eli-1 (ukumisa akuyi kuphinda kuphindwe ngamaxesha amaninzi, ngaphandle koko ulusu lulula crack and peel off) ukuthintela ulusu lwentonga yewelding, i-oyile encangathi kunye nolunye ukungcola, ukuze kuthintelwe ukwandisa umxholo wekhabhoni we weld kunye nokuchaphazela umgangatho we weldment.
2.Ngexesha welding ofintsimbi engenasiciizixhobo zombhobho, i-carbides ihlanjululwa ngokufudumeza ngokuphindaphindiweyo, okunciphisa ukubola kunye neempawu zomatshini.
3.I-standard standard yaseMelika eqinile ye-chrome yentsimbi engenastainless ifakelwa umbhobho weflange emva kwe-welding inkulu kwaye kulula ukuyiqhekeza. Ukuba uhlobo olufanayo lwe-electrode yensimbi engenasici yechromium (G202, G207) isetyenziselwa ukuwelda, ukufudumeza kwangaphambi kwe-300 ℃ kunye nonyango olucothayo lokupholisa malunga ne-700 ℃ emva kokuwelda kuyadingeka. Ukuba i-weldment ayikwazi ukuxhomekeka kwi-post-weld yonyango lokushisa, i-electrode ye-stainless steel flange pipe (A107, A207) iya kukhethwa.
I-4.I-Flange yensimbi engenasici, inani elifanelekileyo lezinto zokuzinza ezifana ne-Ti, i-Nb kunye ne-Mo zongezwa ukuphucula ukuxhatshazwa kwe-corrosion kunye ne-weldability. I-weldability ingcono kune-flange ye-chrome yensimbi engenasici. Xa uhlobo olufanayo lwe-chrome ye-stainless steel flange welding intonga (G302, G307) isetyenzisiweyo, ukufudumeza kuqala ngaphezu kwe-200 ℃ kunye nokutshisa malunga ne-800 ℃ emva kokuwelda kuya kwenziwa. Ukuba i-weldment ayikwazi ukuphathwa ngobushushu, i-electrode ye-stainless steel flange pipe (A107, A207) iya kukhethwa.
5.I-flange yensimbi engenasici ukufakwa kombhobho kunye ne-butt-welding flange welding rods zinokuxhathisa okulungileyo kokuhlwa kunye nokumelana neekhemikhali, kwaye zisetyenziswa ngokubanzi kwimichiza, isichumisi, i-petroleum kunye nokuveliswa koomatshini.
6. Ukuze kuthintelwe ukubola kwe-eye-to-eye okubangelwa ukufudumeza kwe-flange cover, i-welding current ayifanele ibe mkhulu kakhulu, malunga ne-20% ngaphantsi kwe-carbon steel electrode, i-arc ayifanele ibe yinde kakhulu, kwaye i-inter-layer yokupholisa akufuneki icothe, kwaye i-weld bead emxinwa kufuneka ikhethwe.
I-carbon steel flange isetyenziswe ngendlela ekhethekileyo, ngoko idinga i-smooth, i-tensile, i-compressive, i-torsional kunye nezinye iimpawu zezixhobo. Ingasetyenziselwa phantsi koxinzelelo oluphezulu ngaphandle kokuphazamiseka. Ngenxa yokuba i-carbon steel ineentsimbi ezimbalwa, amandla ayo okukhuhlana nawo amancinci kakhulu, kwaye anokusetyenziswa ngakumbi kwizixhobo.
Ukongeza, i-carbon steel flanges kufuneka yenziwe ngokungqongqo ngokuhambelana neChina okanye imigangatho yeshishini elifanelekileyo. Ungaze usebenzise izinto ezingafanelekanga ukuzenza. Okukhona awukwazi ukugawula iikona ubukhulu, ezi ndlela zingenelelayo ziya kukhokelela kwiimveliso eziphantsi nezingafanelekanga, nto leyo eya kubangela ukungaphumeleli kwayo yonke inkqubo yesiFrentshi, nokuba kubangele ilahleko yezoqoqosho yepropathi kunye neengozi kunye nezinye iingozi ezizinzileyo.
Nabani na oye weva nge-carbon steel flange uyazi ukuba ukubunjwa kwayo kuyinkimbinkimbi kakhulu. Ngokubhekiselele kwizinto zayo, i-carbon steel nayo yahlukile kwezinye iintsimbi, kwaye ukusebenza kwayo kungcono kunokwentsimbi. Ngoko i-flange enhle yenziwe kakhulu nge-carbon steel, oko kukuthi, into ebizwa ngokuba yi-carbon steel flange. Ukongeza kwikhabhoni, intsimbi yekhabhoni iqulathe isixa esincinci sesilicon, manganese, sulfur, phosphorus kunye nezinye izinto, ngoko ke inobungcali bayo kwizinto eziphathekayo.
Indlela yokulinganisa i-carbon steel flange kunye nomsebenzi wokulungiselela ngaphambi kokulinganisa kuya kwaziswa ngokufutshane ngumhleli.
1.Ngexesha lokulinganisa, kufuneka kulungiswe abantu abathathu, ababini kubo bayalinganisa, omnye uyajonga aze agcwalise ifom. Ukuba akukho mqathango wokusebenzisa i-caliper yangaphandle kunye nerula yensimbi, i-caliper ingasetyenziswa njengesixhobo sokulinganisa. Umlinganiselo ngumsebenzi ocokisekileyo kunye nemfuneko yofakelo lwezixhobo. Umlinganiselo kunye nerekhodi iya kulungiswa ngokuchanekileyo, kwaye ifom iya kuzaliswa ngononophelo kwaye ngokucacileyo. Kuwona msebenzi wokulinganisa. Ukuze sisebenzisane omnye nomnye, sifanele sikwazi ukusebenzisana size sisebenzise ngokuvisisana nemigaqo echanileyo.
2. Ngokwendawo yeflange enkulu ngaphambi kokulinganisa, umzobo wokudibanisa kunye nenani le-flange enkulu yezixhobo kufuneka zidwetshwe ekuqaleni, ukwenzela ukuba ukulungiswa kunokufakwa ngokweendlela ezihambelanayo kunye nemigaqo, kunye nokusetyenziswa okuqhelekileyo. inokumiselwa.
3.Ngenxa yokuba ububanzi obungaphandle be-carbon steel flange bunokwahluka, umngxuma ongalunganga (iziko elahlukileyo) kunye nobukhulu be-gasket buhluke, ukulungiswa okucwangcisiweyo akufanele kutshintshiswe kunye necala le-carbon steel flange, ngoko ke ukulinganisa ubungakanani kunye ubungakanani belungu ngalinye ngundoqo. Ukusetyenzwa nokufakwa kwe-Ixtere.
Iiflange zentsimbi yeCarbonzisetyenziswa kakhulu kwizicelo zemihla ngemihla, kwaye ukusetyenziswa akucothi. Ngoko ke, ukugcinwa rhoqo kwee-carbon steel flanges kufuneka kube nemithetho ehambelanayo yokugcina umgangatho we-carbon steel flanges kangangoko kunokwenzeka kunye nokuphucula isantya sokusebenza. Apha sabelana nawe ngokusebenza okuzinzileyo kwensimbi engenasici kunye ne-carbon steel flanges kwaye yintoni ukugcinwa kufuneka kwenziwe:
1.Xa i-carbon steel flange ivaliwe, kusekho enye i-medium ekhohlo kumzimba wevalve, kwaye ithwala uxinzelelo oluchaziweyo. Ngaphambi kokugqithisa i-carbon steel flange, vala ivalve yokuvala phambi kwe-carbon steel flange, vula i-carbon steel flange ukuze ihlaziywe, kwaye ukhulule ngokupheleleyo uxinzelelo lwangaphakathi lomzimba wevalve. Kwimeko ye-carbon steel flange yombane okanye i-valve yebhola ye-pneumatic, amandla kunye nokunikezelwa komoya kufuneka kunqanyulwe ekuqaleni.
2. Ngokubanzi, i-soft sealing carbon steel flange isebenzisa i-tetrafluoroethylene (PTFE) njengento yokutywina, kwaye indawo yokutywina yevalve yebhola yokutywina enzima yenziwe ngentsimbi engaphezulu. Ukuba kuyimfuneko ukucoca i-valve yebhola yombhobho, kufuneka kuthathelwe ingqalelo ukukhusela ukuvuza ngenxa yomonakalo kwindandatho yokutywina ngexesha lokuchithwa.
3.Xa udibanisa i-carbon steel flange, iibhotshi kunye namantongomane kwi-flange kufuneka zilungiswe kuqala, kwaye ke zonke iinqununu kufuneka ziqiniswe kancane kwaye ziqiniswe ngokuqinileyo. Ukuba amandongomane alungiswe kakuhle phambi kokuba amanye amandongomane alungiswe, umphezulu we-gasket uya konakaliswa okanye uqhekeke ngenxa yomthwalo ongalinganiyo phakathi kobuso be-flange, okukhokelela ekuvuzeni okuphakathi kwi-valve flange butt joint.
4.Ukuba i-valve ihlanjululwe, i-solvent esetyenzisiweyo ayiyi kungqubuzana kunye neendawo eziza kuhlanjululwa kwaye ayiyi kutshabalalisa. Ukuba i-carbon steel flange yegesi, inokucocwa ngepetroli. Ezinye iindawo zinokucocwa ngamanzi abuyiselweyo. Ngexesha lokucoca, uthuli oluseleyo, ioli kunye nezinye iziqhotyoshelwano ziya kuhlanjululwa ngokupheleleyo. Ukuba abanako ukucocwa ngamanzi acocekileyo, banokucocwa ngotywala kunye nezinye izinto zokucoca ngaphandle kokulimaza umzimba we-valve kunye namalungu. Emva kokucoca, linda i-ejenti yokucoca ukuba iguquguquke ngaphambi kokuhlanganisana.
5.Ukuba ukuvuza okuncinci kufunyenwe ekupakishweni ngexesha lokusetyenziswa, i-valve rod nut inokuqiniswa kancinane de kuyeke ukuvuza. Musa ukuqhubeka uqinisa.
6.Phambi kokusetyenziswa, umbhobho kunye nenxalenye ephuphumayo yevalve yomzimba iya kucocwa ngamanzi ukunqanda iifayili zentsimbi ezishiyekileyo kunye nezinye izinto ezingafaniyo ukuba zingangeni kumngxuma ongaphakathi womzimba wevalvu.
Ukongeza, ukuba i-carbon steel flange ibekwe ngaphandle ixesha elide, kwaye akukho milinganiselo yokoyika amanzi, kuya kubangela ukubola kweminye imizimba yevalve kunye namacandelo. Ngale ndlela, kuyimfuneko ukuvavanya ukuzinza kwe-carbon steel flange ngexesha lokusetyenziswa.
Ixesha lokuposa: Feb-07-2023
