Amapayipi ensimbi angenamthungo angahlukaniswa abe amapayipi ensimbi angenamthungo ajwayelekile e-ASTM American, amapayipi ensimbi angenamthungo e-DIN yaseJalimane ajwayelekile, amapayipi ensimbi angenamthungo e-JIS Japanese, amapayipi ensimbi kazwelonke e-GB angenamthungo, amapayipi ensimbi angenamthungo e-API nezinye izinhlobo ngokwezindinganiso zawo. Amapayipi ensimbi angenamthungo ajwayelekile e-ASTM American asetshenziswa kakhulu emazweni omhlaba, futhi izinhlobo zawo zihlukene. Imingcele efanele yamapayipi ensimbi angenamthungo we-ASTMI-ASTM engu-179/179m/sa179/sa-179m amapayipi ensimbi angenamthungo aseMelika ahlelwe kanje
isicelo
Ifanele amapayipi ensimbi asetshenziswa ekushintshiseni ukushisa kwe-tubular, ama-condensers kanye nemishini efanayo yokudlulisa ukushisa.
Ibanga lepayipi lensimbi
I-A179, SA179
Izakhiwo zemishini:
| Okujwayelekile | Ibanga | Amandla aqinile (MPa) | Isivuno Amandla (MPa) | Ubude: (%) |
| I-ASTM A179/ASME SA179 | I-A179/SA179 | ≥325 | ≥180 | ≥35 |
Ukwakheka kwamakhemikhali:
| Okujwayelekile | Ibanga | Imikhawulo yokwakheka kwamakhemikhali,% | |||||||||
| C | Si | Mn | P | S | Cr | Mo | Cu | Ni | V | ||
| I-ASTM A179 | A179 | 0.06–0.18 | / | 0.27-0.63 | ≤0.035 | ≤0.035 | / | / | / | / | / |
Amazwana:
| HR: hot rolled | CW: ukusebenza okubandayo | SR:i-stress idambisiwe |
| A: kuhlanganisiwe | N:okujwayelekile | HF |
Inqubo yokukhiqiza ipayipi lensimbi engenamthungo. Ngokwenqubo yawo yokukhiqiza, amapayipi ensimbi angenamthungo ahlukaniswe abe amapayipi ensimbi angenamthungo agingqiwe ashisayo, amapayipi ensimbi adonswa ngokubanda angenamthungo, amapayipi ensimbi agqitshiwe nanwetshiwe, namapayipi ensimbi angenamthungo abheke phezulu. Izinqubo ezimbili zokuqala zisetshenziselwa ukukhiqiza amapayipi ensimbi angenamthungo ajwayelekile, ububanzi bawo buvamise ukuba ngu-8-406, kanti ukujiya kodonga kuvamise ukuba ngu-2-25; lezi zinqubo ezimbili zokugcina zisetshenziselwa ukukhiqiza amapayipi ensimbi angenamthungo anomthamo omkhulu anogqinsi, ububanzi bawo ngokuvamile bungu-406-1800, kanti ukujiya kodonga kungu-20mm-220mm. Ngokusebenzisa kwayo, ingahlukaniswa ibeamapayipi ensimbi angenamthungo wezakhiwo, amapayipi ensimbi angenamthungo oketshezi, amapayipi ensimbi angenamthungo ama-boilers, futhiamapayipi ensimbi angenamthungo amapayipi kawoyela.
Isikhathi sokuthumela: Dec-17-2024
