Flange ndi gawo lopangidwa ndi disc lomwe limapezeka kwambiri mu engineering ya mapaipi.Theflangesamagwiritsidwa ntchito pawiri komanso molumikizana ndi ma flanges ofanana pa valve.Mu engineering ya mapaipi, ma flanges amagwiritsidwa ntchito makamaka polumikiza mapaipi.Mu payipi komwe zofunikira zimalumikizidwa, zida zosiyanasiyana zimakhala ndi mbale ya flange.
Kuyerekeza pakatizitsulo zosapanga dzimbiri flangesndicarbon steel flanges:
1. Thermal conductivity ndi yotsika, pafupifupi gawo limodzi mwa magawo atatu a carbon steel.Pofuna kupewa dzimbiri diso ndi diso chifukwa cha kutentha kwa chivundikiro cha flange, kuwotcherera pakali pano sikuyenera kukhala kwakukulu, komwe ndi pafupifupi 20% kuchepera kuposa ndodo za carbon steel.Arc siyenera kukhala yayitali kwambiri, ndipo kuziziritsa kwa interlayer kuyenera kukhala kofulumira.Ndikoyenera kugwiritsa ntchito chiphaso chocheperako chowotcherera.
2. Mlingo wa electronegative ndi wokwera, pafupifupi 5 nthawi ya carbon steel.
3. Coefficient of linear expansion ndi yaikulu, 40% kuposa ya carbon steel, ndipo pamene kutentha kumawonjezeka, mtengo wa coefficient of linear expansion ukuwonjezeka moyenerera.
Chitsulo cha kaboni ndi aloyi yachitsulo yachitsulo yokhala ndi mpweya wa kaboni kuyambira 0.0218% mpaka 2.11%.Amatchedwanso carbon steel.Nthawi zambiri, imakhala ndi silicon, manganese, sulfure, ndi phosphorous pang'ono.Nthawi zambiri, kuchuluka kwa mpweya wa carbon mu chitsulo cha carbon, kumapangitsanso kuuma ndi mphamvu, koma kutsika kwa pulasitiki.
Kodi pali kusiyana kotani pakati pa low-carbon steel, medium carbon steel ndi high carbon steel?
1. Low mpweya zitsulo ndi mtundu wa carbon zitsulo ndi zili mpweya zosakwana 0.25%, kuphatikizapo wamba mpweya structural zitsulo ndi ena apamwamba mpweya structural zitsulo, ambiri amene ntchito zomangamanga zigawo zikuluzikulu structural kuti safuna kutentha. chithandizo.Ena amapatsidwanso carburization kapena chithandizo cha kutentha.
2. Sing'anga mpweya zitsulo ali wabwino Hot ntchito ndi kudula katundu, koma osauka kuwotcherera katundu.Kulimba kwake ndi kuuma kwake ndikwapamwamba kuposa chitsulo chochepa cha kaboni, pomwe pulasitiki yake ndi kulimba kwake ndizotsika kuposa chitsulo chochepa cha carbon.Cold anagubuduza ndi njira zina mwachindunji ntchito ozizira processing popanda kutentha mankhwala, kapena Machining kapena forging angathe kuchitidwa pambuyo kutentha mankhwala.Chitsulo chowumitsidwa chapakati cha kaboni chili ndi makina abwino kwambiri.Kuuma kwakukulu komwe kungatheke ndi pafupifupi HRC55 (HB538), σ B ndi 600-1100MPa.Choncho, sing'anga mpweya zitsulo chimagwiritsidwa ntchito zosiyanasiyana ndi milingo sing'anga mphamvu.Sikuti amagwiritsidwa ntchito kwambiri ngati zomangira, komanso popanga zida zosiyanasiyana zamakina.
3. Zitsulo zapamwamba za carbon nthawi zambiri zimatchedwa Tool steel, ndipo mpweya wake ndi 0.60% ~ 1.70%.Ikhoza kuzimitsidwa ndi kupsya mtima, ndipo kuwotcherera kwake kumakhala kosauka.Nyundo, khwangwala, ndi zina zonse zimapangidwa ndi chitsulo chokhala ndi mpweya wa 0.75%.Zida zodulira monga zobowolera, matepi, ndi ma reamers zili ndi mpweya wa 0.90%
Nthawi yotumiza: Jun-08-2023
