Amapayipi ensimbi angenamthungo angahlukaniswa ngamapayipi ensimbi angenamthungo ajwayelekile e-ASTM American, amapayipi ensimbi angenamthungo ajwayelekile e-DIN German, amapayipi ensimbi angenamthungo ajwayelekile e-JIS Japanese, amapayipi ensimbi angenamthungo akazwelonke e-GB, amapayipi ensimbi angenamthungo e-API nezinye izinhlobo ngokwezindinganiso zawo. Amapayipi ensimbi angenamthungo ajwayelekile e-ASTM American asetshenziswa kakhulu emhlabeni jikelele, futhi izinhlobo zawo ziyahlukahluka. Amapharamitha afanele amapayipi ensimbi angenamthungo e-ASTMI-ASTM a179Amapayipi ensimbi aseMelika ajwayelekile angenamthungo /179m/sa179/sa-179m abhalwe kanje:
isicelo
Kufanelekela amapayipi ensimbi asetshenziswa kuma-heat exchanger ane-tubular, ama-condenser kanye nemishini yokudlulisa ukushisa efanayo.
Ibanga lepayipi lensimbi
A179, SA179
Izakhiwo zemishini:
| Okujwayelekile | Ibanga | Amandla okudonsa (i-MPa) | Amandla Okukhiqiza (i-MPa) | Ukwelulwa: (%) |
| I-ASTM A179/ASME SA179 | 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 | / | / | / | / | / |
Amazwi:
| I-HR: i-hot rolled | CW: iyasebenza ngokubandayo | SR: ukucindezeleka kukhululiwe |
| A: i-annealed | N: okujwayelekile | HF |
Inqubo yokukhiqiza amapayipi ensimbi angenamthungo. Ngokwenqubo yayo yokukhiqiza, amapayipi ensimbi angenamthungo ahlukaniswe ngamapayipi ensimbi angenamthungo ashiswayo, amapayipi ensimbi angenamthungo adonswayo abandayo, amapayipi ensimbi angenamthungo abhotshoziwe futhi anwetshiwe, kanye namapayipi ensimbi angenamthungo akhishwe ngokuvundlile. Izinqubo ezimbili zokuqala zisetshenziselwa ukukhiqiza amapayipi ensimbi angenamthungo ajwayelekile, ububanzi bawo ngokuvamile bungu-8-406, kanti ubukhulu bodonga ngokuvamile bungu-2-25; izinqubo ezimbili zokugcina zisetshenziselwa ukukhiqiza amapayipi ensimbi angenamthungo anesivalo esikhulu, ububanzi bawo ngokuvamile bungu-406-1800, kanti ubukhulu bodonga bungu-20mm-220mm. Ngokusho kokusetshenziswa kwayo, ingahlukaniswa ibeamapayipi ensimbi angenamthungo ezakhiwo, amapayipi ensimbi angenamthungo oketshezi, amapayipi ensimbi angenamthungo amabhoyila, futhiamapayipi ensimbi angenamthungo amapayipi kawoyela.
Isikhathi sokuthunyelwe: Disemba 17-2024
