Chemical Composition
Q235D mpweya zitsulo mbale, mkulu-mphamvu zitsulo mbale chimagwiritsidwa ntchito pomanga, galimoto, shipbuilding, makina ndi zipangizo ndi mafakitale ena ambiri, koma mkulu-mphamvu zitsulo mbale ayenera kusankhidwa bwino. Choyamba, kalasiyo ndi yokwera kwambiri, zomwe zikutanthauza kuti mtengo udzakhala wokwera chifukwa cha mtengo wapamwamba wopanga. Kachiwiri, kutsika pang'ono kumatanthauza kuti chitetezo sichikuyenda bwino. Chachitatu, ndondomeko zazitsulo zazitsulo zamphamvu kwambiri ziyenera kusankhidwa motsatira zojambula zojambula. Chachinayi, tikulimbikitsidwa kugula zida zapadera zamalonda kuyesa mbale zazitsulo zamphamvu kwambiri.
| Zomwe zimapangidwa ndi mankhwala a Q235D |
| C |
Si |
Mn |
P |
S |
| 0.17 |
0.35 |
1.40 |
0.035 |
0.035 |
Ili ndi kulimba kwabwino. Ndi mosamalitsa kulamulira zikuchokera mankhwala, kuchepetsa zili zinthu zoipa mu mbale Q235D mpweya zitsulo, ndi kusankha wololera kutentha kutentha, NM360 zitsulo mbale ali kulimba bwino. Chifukwa chake, magawo odalirika kwambiri amatha kumangidwa molingana ndi kulephera kwamphamvu kwa magawo osamva kuvala. Q235D mpweya zitsulo mbale utenga luso patsogolo ndi zipangizo, kuphatikizapo mkulu ndi sayansi kasamalidwe luso, kuti zinthu ndi mawonekedwe a mankhwala ndi yunifolomu ndi wokongola.
S355J2 zitsulo mbale Q235D mpweya zitsulo mbale anagubuduza ndondomeko ndi ankalamulira anagubuduza ndondomeko. Pogubuduza, kutentha kwa ingot ndi 1000-1050 ° C; Gawo loyamba limatenga njira yochepetsera yotsika kwambiri, yotentha kwambiri ndi 950-1000 ° C, kuthamanga kwa 1.6-2.0m / s, kuchepetsa kutsika kwa mbale yachitsulo ya Q235D 15-20%, ndi kuchepetsa kuchepetsa mlingo ndi 40-45% kuonetsetsa mapindikidwe athunthu a ingot. Mu gawo loyamba, kutentha koyambira ndi 910-930 ° C, ndipo kutentha komaliza ndi ≤ 870 ° C.
