黑料正能量

I. ????? ?????? ???????

1. ????? ???????:

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

(2). ??????? ????? ????? : ???? ?????? ??? ???? ????? ??????? ????????? ??????? ???????? ?????? ???? ????? ???????? ????? ??????? ????? ??? ?? ??????? ????? ??????? ???? ??????? ????????? ???? ????? ???? ??????. ??? ??????? ?????? ??? ??????? ??? ???? ??????? ????? ?????.

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

????? ???? ???? ??????? ?????? ?????? ???????? ??? ???? ?? 10 ????? ??? 4.6? 4.8? 5.6? 6.8? 8.8? 9.8? 10.9? 12.9? ??? ??? ???. ?? ????? ???? ??????? ?? ?????? 8.8 ??? ??? ?? ????? ??????? ?????? ??????? ?? ????? ????? ????????? ? ???????? ???????? (?????? ???????)? ????????? ???? ??????? ????? ?????? ??????? ????? ???? ??????? ???????.

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

????? ??? ???????? ??? ????? ???? Bbolt ??? ????? ?? ??????? ??????? ??? ???????? ??? ???? ??????? ????? ???? ??????? ????? ??? ??????.

?. ??? ???? ??????? ????? ?????? 4.6 ????? ???????? ?????:

(1). ??? ???? ??????? ????? ??????? ??? ??? ????? 400MPa?

(2). ???? ??????? ??? ???? ?????? ?????? 0.6?

(3). ??? ?????? ??????? ????? ??????? ??? ??? 400 × 0.6 = 240 ???? ??????.

?. ?????? ????? ????? ????? ?????? 10.9? ??? ????:

?????? ??? ???????? ????????? ???? ?? ????:

(1). ??? ???? ??????? ????? ??????? ??? ??? ????? 1000MPa?

(2). ???? ??? ???? ???? ??????? 0.9.

?????. ????? ??????? ????? ?????

1. ?? ??? ????? ?? ????? ??? ???????. ??? ????? ?? ???? ?????? ????? ????? ??????? ?????? ??? ?? ??????? ????? ??? ?? ????? ???? ????? ??????? ??? ??????? ????? ????? ????????? ???????. ?? ??????? ???? ??????? ????????? ?? ????? ??????? ???? ????? ???? ??? ????? ??????? ?? ????? ??????? ???? ???????? ?????? ???? ?? ??????? ????? ???? ??? ??? ??????? ?????? ????.

2. ?? ??? ????? ????? ??????? ????? ?????? ????? ??? ????? ????? ?????.

3. ????? ???? ?? ???? ??????? ??????? ??????? ?????? ??????? ????? ????? ???? ??????? ??????? ??????? ????????? ?????? ?????? ??????? ??????? ?? ???????? ??????? ????????? ??????? ??????? ?? ?????? C. ????? ??????? ??????? ????? ???? ????? ???? 10.9. ?? ????? ????? ??????? ?????? ??? ?????? ??????? ???? ??????? ?????? ??? ??? ??? ??????? ???????? ??? ??????? ???????.

4. ?????? ????? ??????? ???? ????? ???: ????? ?? ??? ???????? ???? ????? ? ????? ????? ??????? ????? ?????. ?? ???? ??????? ???? ?? ?????? ?????? ??? ????? ???? ?????? ??????? ???? ???? ????? ????? ???? ??? ????????? M24? 10.9 ???? ????? ???? ?????? ???? ????? ??????? ???? 225 ???? ?????? ?? ?? ???? ?? 22 ???? ?? ??????. ???? ??? ?????? ??? ???? ?????? ????? ???????? ????? ??? ?????? ???? ?? ???? ????? ????? ?????? ?????.

5. ??? ?? ??? ??? ?????? ?????? ???? ???? ?????? ??? ???????? ????? ????? ?????? ????? ???? ???? ??????? ????? ????? ????? ?????? ????? ??????? ?????. ??? ??? ??? ?????? ?? ???? ????????? ???? ?? ???? ???? ?????? ????? ??????? ???????. ????? ??? ????? ???????? ?? ??? ??????? ???? ????? ?? ???????? ?????? ?????.

6. ???? ?? ???? ??????? ?????? ????? ??????? ???? ??????? ?? ??? ?????? ??????? ???? ????? ?? ?????? ?????? ?? ??????? ?????? ??????? ???????? ???? ????? ?????? ?? ???? ????? ??? ???????? ?? ??? ??????? ???? ????? ????? ??? ????? ???????? ???????.