| 我们在原材料及熔接材料方面则采用日本大同特殊株式会社及日本日立金属株式会社之耐热钢母材及日本三菱公司STELITE钴合金材料。材料成份安定性极佳。
|
| 1、汽门母材成份及机械性能(valve steel bar constituent and mechanical
behaviour)： |
进
气
阀 |
牌号JIS |
化学成分(chemical
composition)% |
机械性能
(mechanical behaviour) |
硬度
(hardness)
HRC |
| C |
Si |
Mn |
P |
S |
Ni |
Cr |
Mo |
Cu |
其它
|
抗拉强度
2
kgf/mu |
屈服强度
2
kgf/mu |
| SUH1 |
0.40-0.50 |
3.00-3.50 |
≤0.60 |
≤0.030 |
≤0.030 |
≤0.060 |
7.50-9.50 |
- |
(≤0.30) |
- |
≥95 |
≥70 |
32-38 |
| SUH3 |
0.35-0.45 |
1.80-2.50 |
≤0.060 |
≤0.030 |
≤0.030 |
≤0.060 |
10.00-12.00 |
0.70-1.30 |
(≤0.30) |
- |
≥95 |
≥70 |
21-33 |
| SUH11 |
0.45-0.55 |
1.00-2.00 |
≤0.060 |
≤0.030 |
≤0.030 |
≤0.060 |
7.50-9.50 |
- |
(≤0.30) |
- |
≥90 |
≥70 |
32-38 |
排
气
阀 |
SUH35 |
0.48-0.58 |
≤0.35 |
8.00-10.00 |
≤0.040 |
≤0.030 |
3.25-4.50 |
20.00-22.00 |
- |
- |
N 0.35-0.50 |
≥90 |
≥70 |
30-35 |
| SUH38 |
0.25-0.35 |
≤1.00 |
≤1.2 |
0.18-0.25 |
≤0.030 |
10.00-12.00 |
19.00-21.00 |
1.80-2.50 |
- |
B 0.001-0.010 |
≥90 |
≥70 |
26-40 |
| HRN751 |
≤1.00 |
≤0.50 |
≤1.00 |
- |
≤0.015 |
≥7.00 |
14.0-17.0 |
- |
≤0.50 |
- |
119-144.8 |
84.4-114.6 |
26-48 |
|
| 2、钴合金焊接材料化学成份及硬度(STELLITE cobalt alloy chemical composition
and hardness)： |
| |
牌号JIS |
化学成分(chemical composition)% |
硬度hardness |
| Co |
Ni |
Si |
Fe |
Mn |
Cr |
Mo |
C |
W |
HRC |
| 锥面焊接料 |
STELLITE
NO.32 |
Min
Max |
21
24 |
0.9
1.3 |
0.85
1.35 |
3.0以内 |
24
27 |
0.6以内 |
1.5
2.0 |
11.5
13 |
HRC42 |
STELLITE
NO.6 |
Min
Max |
3.0 |
2.0 |
3.0 |
1.0 |
26
32 |
1.0 |
1.4 |
3
6 |
HRC43 |
STELLITE
NO.12 |
Min
Max |
3.0 |
2.0 |
3.0 |
1.0 |
26
32 |
1.0 |
1.2
1.7 |
7
9 |
HRC48 |
| 轴端焊接用料 |
STELLITE
NO.1 |
Min
Max |
3.0 |
2.0 |
3.0 |
1.0 |
26
33 |
1.0 |
2
3 |
11
14 |
HRC53 |
|
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