元素牌號(hào)
|
熔敷金屬典型成分(Nominal chemical Comb Of Deposited Metal)
|
硬 度(HRC)
|
||||||||
C
|
Si
|
Mn
|
Cr
|
Ni
|
Mo
|
V
|
W
|
Nb
|
||
DH1Cr13Ni2Mo
|
≤0.18
|
≤0.7
|
1.2
1.6 |
12.5
14.5
|
1.5
2.5 |
≤1.0
|
28
35 |
|||
DH1Cr13NiMoV
|
≤0.18
|
≤0.7
|
1.2
1.6 |
12.5
14.5
|
0.6
1.5 |
≤1.0
|
0.2
0.6 |
28
35 |
||
DH2Cr13MoNb
|
0.15
0.30 |
≤0.8
|
0.8
1.2 |
12.0
14.0
|
≤1.0
|
≤1.0
|
≤0.3
|
33
48 |
||
DH2Cr13TiNb
|
0.15
0.25 |
≤0.8
|
0.8
1.2
|
12.0
14.0 |
≤1.0
|
≤1.0
|
Ti≥0.10
|
≤0.3
|
33
43 |
|
DH2Cr13
|
0.15
0.25 |
≤1.2
|
0.8
1.2 |
12.0
14.0 |
≤0.3
|
33
43 |
||||
DH3Cr13-NiMo
|
0.20
0.35 |
≤1.2
|
0.8
1.2 |
12.0
14.0 |
適量
|
適量
|
≤0.3
|
33
43 |
熱制度:焊件預(yù)熱溫度200~350℃,層間溫度150~350℃,焊后根據(jù)母材成分和尺寸,400~520℃×4~8h后爐冷;
特 點(diǎn):具有良好的抗冷熱疲勞性能與良好的抗氧化性。
2.熱軋工作輥、熱板坯導(dǎo)輥、夾送輥、傳送輥堆焊焊絲 %WT
元素牌號(hào)
|
熔敷金屬典型成分(Nominal chemical Comb Of Deposited Metal)
|
硬 度(HRC)
|
||||||||
C
|
Si
|
Mn
|
Cr
|
Ni
|
Mo
|
V
|
W
|
Nb
|
||
DH25Cr5MoWV
|
0.22
0.32 |
≤1.0
|
≤1.5
|
4.0
6.0 |
0.4
1.2 |
≤1.0
|
0.8
1.5 |
36
50 |
||
DH25Cr3Mo2V
|
0.22
0.32 |
≤1.0
|
≤1.5
|
2.0
5.0 |
≤1.5
|
1.0
3.0 |
≤1.0
|
38
53 |
||
DH3-410-NiMoV
|
0.28
0.38 |
≤1.2
|
≤1.8
|
12.0
15.0 |
0.8
1.8 |
≥0.5
|
≥0.2
|
≥0.3
|
46
58 |
熱制度:預(yù)熱溫度200~350℃,層間溫度200~350℃,焊后520±20℃×6~12h后爐冷;
特 點(diǎn):耐熱疲勞、抗氧化性均較好,同時(shí)兼具合適的硬度與耐磨性。
3.煤粉、水泥、耐火礦料磨輥堆焊焊絲%WT
元素牌號(hào)
|
熔敷金屬典型成分(Nominal chemical Comb Of Deposited Metal)
|
硬 度(HRC)
|
||||||||
C
|
Si
|
Mn
|
Cr
|
Ti
|
Mo
|
V
|
B
|
Nb
|
||
DH5Cr26B
|
4.5
5.5 |
0.5
1.5 |
1.5
2.5 |
25.0
28.0 |
≤2.0
|
≥56
|
||||
DH4Cr26TiNb
|
3.5
5.0 |
≤1.5
|
1.5
2.5 |
25.0
27.0 |
≥0.2
|
≤0.5
|
≥55
|
|||
DH5Cr32Ti
|
3.5
5.0 |
≤1.5
|
1.5
2.5 |
30.0
34.0 |
≥0.2
|
≥57
|
||||
DH5Cr24MoVNb
|
3.5
4.5 |
≤1.0
|
1.5
2.5 |
22.0
28.0 |
0.50
1.20 |
0.20
0.60 |
≤3.0
|
58
63 |
||
DH5Cr22Nb7
|
1.8
5.8 |
≤1.0
|
0.5
1.5 |
8.0
24.0 |
水泥輥加Mo
|
5.5
7.5
|
≥58
|
熱制度:預(yù)熱溫度200~400℃,也可直接堆焊,層間溫度150~350℃(建議);焊后緩冷或空冷;
特 點(diǎn):具有高硬度與耐磨性,焊后不加工,有應(yīng)力釋放微裂紋;出于對(duì)焊態(tài)質(zhì)量和操作環(huán)境考慮,建議采用埋弧堆焊。
4.支承輥、熱矯直輥、助卷輥、夾送輥、粗軋工作輥堆焊焊絲 %WT
元素牌號(hào)
|
熔敷金屬典型成分(Nominal chemical Comb Of Deposited Metal)
|
硬 度(HRC)
|
|||||||||
C
|
Si
|
Mn
|
Cr
|
Ni
|
Mo
|
V
|
W
|
Nb
|
其它
|
||
DH550-CrMoV
|
0.20
0.60 |
0.4
1.2 |
≤1.5
|
3.0
6.0 |
≤1.2
|
0.15
0.55 |
≤0.3
|
≥0.6
|
45
52 |