I-ASTM A350 LF1, LF2 KANYE NE-LF3 KHABONI/I-ALLOY STEELS
IZIMALI EZIJWAYELEKILE
Lezi zinhlobo zensimbi zisetshenziswa njengezinsimbi zamapayipi kanye nasekukhiqizweni kwama-flange ahlanganisiwe. Zifanele ukusetshenziswa kuze kufike ku--20ºF (LF1,) –50ºF (LF2) kanye no--150ºF (LF3.)
Ukuqokwa Ngamazinga
Inombolo yomatilasi. | KUSUKA | NGOKUPHAKATHI | I-AISI |
1.5622 | 14Ni6 | - | I-A350 |
UKUHLAZIYWA KWAMAKHEMIKIMI
LF1:
C% | Mn% | Futhi% | I-S% | I-P% | I-Cr% | Ku-% |
Umkhawulo ongu-0.30 | 0.6/1.35 | .15/.30 | ubuningi be-.040 | ubuningi be-.035 | Umkhawulo ongu-0.30 | Ubuningi obungu-0.40 |
I-LF2:
C% | Mn% | Futhi% | I-S% | I-P% | I-Cr% | Ku-% |
Umkhawulo ongu-0.30 | 0.6/1.35 | .15/.30 | ubuningi be-.040 | ubuningi be-.035 | Umkhawulo ongu-0.30 | Ubuningi obungu-0.40 |
I-LF3:
C% | Mn% | Futhi% | I-S% | I-P% | I-Cr% | Ku-% |
Ubuningi obungu-0.20 | 0.90 | .20/.35 | ubuningi be-.040 | ubuningi be-.035 | Umkhawulo ongu-0.30 | 3.3/3.7 |
IZICELO
Lezi zinsimbi zisetshenziswa kakhulu kumapayipi kanye ama-flange ahlanganisiwe.
UKUQAMBA
Amabanga e-LF1 kanye ne-LF2 kufanele akhiwe cishe ku-2250-2300ºF (1230-1260ºC) futhi akunakwenzeka okwenziwe ngaphansi kuka-1650-1700ºF (900-925ºC.) I Ibanga le-LF3 lizokwakhiwa cishe ku-2150-2200ºF (1175-1205ºC) futhi akunakwenzekaokwenziwe ngaphansi kuka-1700ºF (925ºC.)
UKWELINGISA/UKUSHISA
Ukwelashwa ngokushisa kwezinsimbi zamapayipi ngokungangabazeki kuzokwenziwa njalo ngemva kokushisela. Isakhiwo salezi zinsimbi sizonqunywa ekuqaleni ngenqubo yokugoqa/yokushisela. Ipayipi ngokwalo lizohlinzekwa ngezinsimbi ezishiswayo, ama-flange njll. ezivela ekushiseni. Inqubo yangempela yokushisela izoba yinto ebalulekile ekuqinisekiseni ukufaneleka nokuphepha kwepayipi kanye nokusebenza kwalo okulandelayo. Ukwelashwa ngokushisa nangemva kokushisa kubalulekile.
Amamaki amathathu abhalwe lapha angashintshwa kalula yizo zonke izindlela ezivivinyiwe nezisetshenzisiwe.
UKUSEBENZA KWEMISEBENZI
Uma kwenzeka izinto zokufakelwa ezihlanganisiwe kanye nama-flange, lawa mabanga ithinikufanele kusetshenziswe ngomshini njengoba kudingeka, futhi ulwazi oluqhubekayo luzonquma ukuthi imishini ingcono yini ukwenziwa esakhiweni esakhiwe ngendlela efanayo, esakhiweni esijwayelekile noma esakhiweni esifakwe i-anneal. Kunoma ikuphi, ngenxa yohlobo olubalulekile lokusetshenziswa kokugcina, kufanele kuthathwe iseluleko enkampanini yokwelapha ukushisa eyaziwayo..