51吃瓜

??? ??? ???? ???? ????????????????, ????? ????? ?????? ?????? ????, ??? ?????, ?????, ????????, ?????, ????? ?????????, ?????, ??????????????, ?????????? ???????????, ????. ???????? ???? ?????????? ?????? ??????????? ???? ????? ???????? ??? ?? ????? ??? ??????????? ??? ???????? ????, ??? ??????? ???????? ??? ??????????? ????? ??????? ???????????. ??? ???? ????????? ??? ????? ??? ????????? ??????????? ????? ????????. ??? ?? ?????? ????? ?????????? ??????????? ??? ????? ?????????? ??? ???????? ???? ??????, ????? ??? ????? ?? ??? ???? ?? ????? ??? ??????????????? ???? ??? ???????? ????:

1,?????

1. ????????? ???????? ????: ???????? ???? ??? ??????? ??? 5 ??????? ?????? ?? ?????? ????: Q195, Q215, Q235, Q255, Q275. ???? ???? ??? ??????? ??? A, B, C, ??? D ????? ????? ????????? ?валитат?. ???195, Q215, ??? Q235 ????? ??? ?????????? ??? ????? ??? ?????? ??? ???? ?????, ???? ?????, ???? ???????, ????. Q255,&# 8194 ????? ????? ?????? ??? ?????????? ????, ???? ?????, ??;

2. ???? kwalite? ?????? ?????????????: ????????? ??? ????????????? ???? ??? ????? ???сс ??????? ??? ?????? ??? 10,000. ??? 20 #, 45 #, ????. 20 # ????????????? ?? C: 0.20% (20/10000) ???????? ???

3. ?????????????? ????: ??? ???????????? ??? ????????????? ???? ??? ???? ??????? ??????? ??? ?????? ??? ????????? ??? T. ?? T9, T12, ????. T9 ????????????? ?? C: 0.9% (9 ?????? ??? ??????) ???????? ??? 4. ??????? ????: ??? ??????? ???? ???? ??? ????????? ??? ??????? ???? ??? ?????, ????? ????????????? ?? ???? ??????? ??????? ??? ??? ???? (????????? ??? ?????? ??? ?????? ??? ?????). ?? ZG25, ????????????? ?? C: 0.25% ???????? ?????????????: ??????? ?????? ????? ?????????????? ?????? ??? ??????????? ?????? ???? ????????? ????? ??????????, ??????????, ??? ?????????, ??? ?????, ????

2, Classification of Carbon Steel

1. ???? ?? kwalite? ???? ???? (??????? ??? ???????? ???? ??????????? ??? ?????? ??? ???????????):

????????? ???????? ???? (S 0.055%, P 0.045%)

High quality carbon steel (S 0.040%, P 0.040%)

High quality carbon steel (S 0.030%, P 0.035%)

2. ???? ?? ????????? ???? ???????? ????????:

?????? ???????? ???? (C: 0.25%), ???? ?????? ??? soft steel, ??? ????? ?? ????? ?????????? ??????????? ??? ??????????, ????????, ??? ???????. ?? ????? ???????? ?????? ??? ?? ???????????? ??? ?????, ?????, ?????, ?????, ????.

???? ???????? ???? (C: 0.25% ≤ C 0.6%) ??? ?????????? ??????????? ??? ???????? ????, ???? ???????? ????, boiling steel, ??. ???? ??? ??????, ?? ??? ???? ?????? ?? ????? ??????? ?????????? (0,70% ??? 1,20%). ???? ????????? Quality, ??? ?? ??????? ??? ???????????? ?????? ??????????? ???? ??? ????-kwalite? ?????? ??????????? ????. ??? ?????????? ???????? ??? ????????? ????????, ????? ??????????? ????????. ?????????? ??? ????? ????? ????? ??? ?????? ?????? ????, ???? ???????????? ??? ????? ????? ??????? ??? ?????? ?????? ????. ??? ??????????? ??? ??? ??????????? ??????????? ??? ??? ???? ???????? ??? ???????????????, ????? ??? ??? ???? ???? ??????????????. ??? ????? ??? ???????? ???? ???????? ???? ???? ???? ??????????????? ?????????? ????????????. ??? ?????? achievable ?????????? ??? ????? HB538, ??? ?? ????????? ???????? σ ? ??? 600-1100MPa. ????? ?????? ????????? ???????????? ??? ????????? ??????????, ???? ???????? ???? ??? ?? ????? ????? ????, ???? ????? ??? ?? ??????????????, ????? ???? ?????? ?????? ??? ??? ???????????? ??? ?????

High carbon steel (C:>0.6%) is commonly referred to as tool steel, with a carbon content ranging from over 0.60% to 1.70%, and can be quenched and tempered. ?????, pry bar, ????. ????? ?????? ??? ???? ??? ? ???????? ???????? ??? 0.75%; ???????? ?? ???????????? ?? ?????????, ?????????, ???????, ??. ?? ?????? ???? ???? ??? ?? ????????? ???????? ??? 0.90% ?? 1.00%.

??? ??????? ???????? ???? ????????, ??? ??????? ???????? ??? ?????????, ????? ??? ?????????? ????? ??????? (???? ????? ???? ?????? ???????? ????????? ??? ?? ???????? ???????? ??? 2.1% ??? 4.5% ????? ???

3. ???????? ???? ?????:

???????? ?????????????: ??????? ???? ????? ??????, ????, ?????? ?????????????, ?????? ???????, ??”

????????:

????????????????????????????????????????????????????????????????????????????? ?????????????????????? ?????????????????????? ??????????????????????????????, ?????????????????????????????? ?????????? ?????????? ????????????; ???????? ?????? CNC ??????; ??????????????????? ???????.