 ??? 0 ????? %B2%BB%D0%E2%B8%D6%B9%DC%BC%DB%B8%F1 ?? ??????? ??????????? ?????????? |
| ??????????+????????102*16-26???????λ |
| ??????????+????????102*16-26???????λ
??(????)
?? ???????
16
17
18
19
20
22
(24)
25
(26)
28
?? ?? ?? ?? ??????/???
102
33.93
35.64
37.29
38.89
40.44
43.40
46.17
-
-
-
108
36.30
38.15
39.95
41.70
43.40
46.66
... |
| http://m.zebwoc.cn/shownewsX.asp?id=2039 - 2018/10/21 11:04:04 - |
| GB/T3087????????+3087??ˉ?????????3087????? |
| GB/T3087????????+3087??ˉ?????????3087?????
GB3087??GB5310??????
??ˉ????????GB3087-1999
??ˉ??(GB3087-1999 GB5310-1995)
?????GB3087-1999 GB5310-1995 ???????????????????????????????ˉ????????ú?????????????????????????????????
??ˉ??????????GB5310-95??ST45.8-?????
??ˉ??( GB5310-1995)
????? GB5310-1995 ????????????????????????ˉ????????ú??????????????????????... |
| http://m.zebwoc.cn/shownewsX.asp?id=2038 - 2018/10/20 11:33:00 - |
| ????????????+?????????\??????????????/ |
| ????????????+?????????\??????????????/
??(????)
?? ???????
30
32
(34)
(35)
36
(38)
40
(42)
(45)
?? ?? ?? ?? ??????/???
127
71.76
-
-
-
-
-
-
-
-
133
76.20
79.71
-
-
-
-
-
-
-
140
81.38
85.23
88... |
| http://m.zebwoc.cn/shownewsX.asp?id=2037 - 2018/10/19 12:01:56 - |
| 42crmo????????????????????????????? |
| 42crmo?????????????????????????????
42CrMo?????
???????annealing No.1 "760??10?????ˉ????400?????
????HB220-230
????????normalize No.4 860??10????????ˉ????
????????quenching+tempering No.5 840??10?????????????????????????680-700???? HB<217
????????quenching+tempering No.6 840??10????????470??????? HRC41-45
????????quenching+tempering No.7 84... |
| http://m.zebwoc.cn/shownewsX.asp?id=2036 - 2018/10/18 12:30:52 - |
| 20????45????????? |
| 20????45?????????
45#????
?????е????????????????????????????????????????????????????á?
45??
???????????????????????450???????????????????????????????????顣
45???
?????????0.42-0.50%????????????0.17-0.37%????????????0.50-0.80%???????????<=0.035%???????????<=0.035%???????????<=0.25%???????????<=0.2545??
???0.45%?????
????????????
????850
???840
???600
??????????С??600Mpa ... |
| http://m.zebwoc.cn/shownewsX.asp?id=2035 - 2018/10/17 12:59:48 - |
| ?????450*70????????????+?????????? |
| ?????450*70????????????+??????????
??(????)
?? ???????
(48)
50
56
60
63
(65)
70
75
?? ?? ?? ?? ??????/???
203
183.47
188.65
-
-
-
-
-
-
219
202.41
208.38
-
-
-
-
-
-
245
233.25
240.44
-
-
-
... |
| http://m.zebwoc.cn/shownewsX.asp?id=2034 - 2018/10/16 13:28:44 - |
| ?е????ˉ?????????+?????ˉ????????? |
| ?е????ˉ?????????+?????ˉ?????????
20?????ˉ??
????20?????ˉ???????????????????GB/T699-1999?????????????????????????????C?????????????????????????????????????????????????
?????????--????????С??0.25%????10??20????
?????????--??????????0.25??0.60%?????35??45????
?????????--???????????0.60%?????????????????????
????????????????????????????????????
??????????????????????????????????????????????????????????????????????????????... |
| http://m.zebwoc.cn/shownewsX.asp?id=2033 - 2018/10/15 13:57:40 - |
| 89??4.5???????gb3087???????+???????? |
| 89??4.5???????gb3087???????+????????
??(????)
?? ???????
2.5
3
3.5
4
4.5
5
5.5
6
6.5
7
7.5
?? ?? ?? ?? ??????/???
32
1.82
2.15
2.46
2.76
3.05
3.33
3.59
3.85
4.09
4.32
4.53
38
2.19
2.59
2.98
3.35
3.72
4... |
| http://m.zebwoc.cn/shownewsX.asp?id=2032 - 2018/10/15 10:26:36 - |
| ?????????????????+???DN200???????????? |
| ?????????????????+???DN200????????????
??(????)
?? ???????
16
17
18
19
20
22
(24)
25
(26)
28
?? ?? ?? ?? ??????/???
102
33.93
35.64
37.29
38.89
40.44
43.40
46.17
-
-
-
108
36.30
38.15
39.95
41.70
43.40
46.66... |
| http://m.zebwoc.cn/shownewsX.asp?id=2031 - 2018/10/14 10:55:32 - |
| ???????????????????+???????????? |
| ???????????????????+????????????
??????
???????
???(mm)
????4?????
DN15
20??21
????6?????
DN20
25??26.8
????1?????
DN25
32??33.
????1.2?????
DN32
40??42
????1.5?????
DN40
47??48
????2?????
DN50
59??60
????2.5?????
DN65
75
????3?????
DN80
88???????... |
| http://m.zebwoc.cn/shownewsX.asp?id=2030 - 2018/10/13 11:24:28 - |
|
|
??? ???? [216]
[217]
[218] ???? ??
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|
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