??????? (Welding)

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??????? (Welding)

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Title: Author: zc Last modified by: zc Created Date: 7/14/2004 9:22:03 PM Document presentation format – PowerPoint PPT presentation

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Title: ??????? (Welding)

1
??????? ?? ???? ???????

????? ??????? ? ????????? ??
??????? ?? ???? ??????? ? ????? ??? ???
?????? ?? ???????? ???????? ? ??? ????? ????

2
??????? (Welding)

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

3
??????? ???????
??? ???? ?????? ??? ?? ??? ?????? 5500 ??? ?? ?????
??? ?????? ???? ??? ????? ????? ?? ???????? ????? ? ???? 500 ??? ?? ????? ?? 1870
??????? ?? ?????? ???????? ???? ????? ????? (????? ?????? ???? ??? ???? ?????? ????????????- ??????) 1880
??????? ?? ??? ???????? ?? ??????? ????? ?? ??????? (????- ?????) 1885
4
??????? ??????? (??????)
??????? ?? ??? ???????? ? ?????????? ???? ??? ??? ?? ??????? (?????????- ?????) 1888
????? ??? ??? ??? (?????- ??????) 1889
??????? ?? ?????????? ???? ??? ?? ??? ??? ???????? (?????????- ??????) 1889
??????? ?? ???? ???? ?????? ?? ??????? ? ??????? (???? ? ??????- ???????) 1903
5
??????? ??????? (??????)
??????? ?? ??????? ?? ????? ???????? ? ???? ???? ???? 1920-1900
??????? ?? ?????????? ?? ? ?????? ?? ??????? (??? TIG) 1920
??????? ?? ??????? ?? ??????? ????? 1920 ?? ???
??????? ?? ?????? ??? ???????? 1935
??????? ?? ??????? ?? ???? ??????? 1940 ?? ???
6
????????? ??????? (Welding Processes)

???? ????? ?????
??????? ?????? ????????
??? ????? ??? (????? ??? ??????? ? ....)
??? ????? ?? ???
??????? ?? ??????? ? ????? ??

7
????? ??? ??????? ?? ???? ???????

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

8
????????? ??????? ?? ???? ???????

??? ???????????? ???? ?? ??????????????? (??? ???
????) SMAW
??? ??? ???????? ???????? (??? ????????) SAW
??? ??? ???????? ???? ???? (??? ???) GMAW
??? ??????? (???? ???) Spot Welding
??? ???? ?????? Oxyfuel Welding

9
????? ???????? ????????

???????? ????? (?? ???? ?????)
???????? ???????? ?? ????? ??
???????? ????? ???????? ?????? ? ??? ???

10
????? ???? ?????? ???????????

???? ?????? ??????? C, S, P, Si, .
???? ?????? ???? Mn, Ni, Cu, Va, Cr, .

11
????????? (Weldability)

?????? ??? ?? ???? ??????. ?? ????? ??????
??????? ????? ?? ????? ????????? ????? ???????
????? ? ??? ??????? ????? ??????? (???? ???????
????? ???? ? ?????? ????????? ??? ????? ???????
?????? ?? ???? ? ???????) ???? ????? ???????
????? (???? ?????? ??? ???? ?????) ?????.
????? ????? ???????
???? ????? ????? ?? ????? ????
?????????? ????????? ?????

????????? ?????????
???? ?????????
µeu/ ey

13
?????? ????????? ?? ????? ? ??? ???? ??????
???? ??????? ????????? ???? ????? ???? ??????
0/35 0/06-0/25 ????
1/40 0/38-0/80 ?????
0/30 ?????? 0/10 ???????
0/05 ?????? 0/035 ?????
0/04 ?????? 0/03 ????
14
????? ???? Carbon Equivalent
????????? ????????? ????
???????? ????? ?????? ??????????? Ce0/30
?? ?????? ???? ???? ??????? ??? 0/31Ce0/45
???? ??????? ???? Ce0/46
15
?????? ??? ???? ??????????????? ?? ???????
(????????)