Musiyano pakati pezviyero uye chinzvimbo
GB/T 9948: Inoshanda kune isina musono pombi dzesimbi mukati uye nepamusoro-tembiricha (≤500 ℃) mamiriro akadai se.kuputika kwe petroleumuyemakemikari midziyo, uye ndeyeiyo yakakosha pombi standard.
GB/T 5310: Yakagadzirirwa chaizvohigh-pressure boilers(steam parameters ≥9.8MPa), inosimbisa kuchengetedzeka kwenguva refu pasi pekupisa kwakanyanya uye kudzvanywa kwakanyanya uye ndiyo musimboti chiyero che boiler machubhu.
Misiyano yakakosha mune zvinhu uye kuita
Kemikari yakagadzirwa
Kuenzaniswa ne20 simbi,20Gsimbi ine simba rakasimba pamusoro pezvisina kuchena (zvakadai seP≤0.025%, S≤0.015%), uye inoda huwandu hwose hwezvinhu zvakasara (Cu, Cr, Ni, nezvimwewo) kuti zvive ≤0.70% kuti zvive nechokwadi chekudzikama kwepamusoro.
Mechanical properties
Iyo kamuri-tembiricha yekusimba kwesimba re20G (410-550MPa) inoita seinopindirana neiyo yesimbi makumi maviri (≥410MPa), asi 20G inoda kuwedzera kusimba kwekutsungirira kwepamusoro-soro pa450℃ (≥110MPa), chinova ndicho chinonyanya kudiwa pamachubhu anoboiler.
Microstructure
20G inoda kuongororwa giredhi re spheroidization ye pearlite (≤ giredhi 4) kudzivirira kuparara kwe microstructure mushure menguva refu-yepamusoro-tembiricha sevhisi, nepo 20G simbi isina zvakadaro zvinodiwa.
Kusiyana kwemaitiro ekugadzira
Kurapa kwekupisa
20G inofanirwa kurapwa yakajairika (Ac3 + 30 ℃) kuve nechokwadi chekukura kwezviyo zvegiredhi 5-8. 20 simbi inogona kuvharwa kana kujaira, uye maitiro ekudzora akasununguka.
Kuedza kusina kuparadza
20G inoda munhu wega ultrasonic chikanganiso chekuonekwa uye eddy ikozvino kuyedzwa kwechidimbu chimwe nechimwe, nepo 20G simbi inowanzongoda kuongororwa sampling.
Kuenzanisa kwemaitiro ekushandisa
20G: Power station boilers (mvura-yakatonhorera madziro, superheaters), kemikari yakakwirira-kudzvanywa reactor (zvimiro zvine tembiricha yekugadzira> 350 ℃)
20 simbi: Tube masumbu ekudziya mavira munzvimbo dzekunatsa, mapaipi emumhepo uye vacuum distillation units (tembiricha kazhinji <350 ℃)
Certification Zvinodiwa
20G mapaipi esimbi anoda kuwana Special Equipment Manufacturing License (TS certification), uye batch yega yega inofanirwa kupa yakakwira-tembiricha yekuita bvunzo mushumo. 20 simbi inongoda chenguva dzose chemhando yekuvimbisa.
Sarudzo mazano:
Kana zvasvika kune ASME kana PED certification mapurojekiti, 20G inogona kuenderanaSA-106B/ ASTM A192, nepo 20 simbi isina yakananga tsamba kuAmerican standard zvinhu.
Kune mamiriro ekushanda pamusoro pe540 ℃, alloy simbi senge 12Cr1MoVG inofanirwa kutariswa. Muganho wepamusoro wekushisa kunoshanda kwe20G ndeye 480 ℃ (iyo yakakosha poindi yegraphitization yekabhoni simbi).
Nguva yekutumira: May-23-2025
