收藏词条 编辑词条 铸铁轧辊(GB/T1504-1991)
(1)分类与化学成分见表1。
(2)物理性能见表2。
表1 铸铁轧辊的分类与化学成分
分类 |
名称 |
化学成分(质量分数)(%) |
||||||||||||
C |
Si |
Mn |
P |
S |
Ni |
Cr |
M0 |
V |
Cu |
Mg |
Ti |
RE |
||
冷硬铸铁轧辊 |
普通冷硬铸铁轧辊 |
2.90~3.8 |
0.25~0.8 |
0.20~1.00 |
≤0.45 |
≤0.12 |
- |
- |
- |
- |
- |
- |
-- |
- |
钼冷硬铸铁轧辊 |
2.90~3.8 |
0.25~0.80 |
0.20~1.00 |
≤0.45 |
≤0.12 |
- |
- |
0.20~0.60 |
- |
- |
- |
-- |
- |
|
铬钼冷硬铸铁轧辊 |
2.90~3.8 |
0.25~0.80 |
0.20~1.00 |
≤0.45 |
≤0.12 |
- |
0.20~0.60 |
0.20~0.60 |
- |
- |
- |
-- |
- |
|
镍铬冷硬铸铁轧辊 |
2.90~3.8 |
0.25~0.80 |
0.20~1.00 |
≤0.45 |
≤0.12 |
0.50~1.00 |
0.20~0.60 |
- |
- |
- |
- |
-- |
- |
|
镍铬钼冷硬铁轧辊(Ⅰ) |
2.90~3.8 |
0.25~0.80 |
0.20~1.00 |
≤0.45 |
≤0.12 |
0.80~2.00 |
0.30~1.20 |
0.20~0.60 |
- |
- |
- |
- |
- |
|
镍铬钼冷硬铸铁轧辊(Ⅱ) |
2.90~3.80 |
0.25~0.80 |
0.20~1.00 |
≤0.45 |
≤0.12 |
2.01~3.00 |
0.50~1.50 |
0.20~0.60 |
- |
- |
- |
- |
- |
|
镍铬钼冷硬铸铁乾辊(Ⅲ) |
2.90~3.80 |
0.25~0.80 |
0.20~1.00 |
≤0.45 |
≤0.12 |
3.01~4.50 |
0.50~1.70 |
0.20~0.60 |
- |
- |
-- |
- |
- |
|
普通冷硬球墨复合铸铁轧辊 |
2.90~3.80 |
0.40~1.20 |
0.20~1.00 |
≤0.45 |
≤0.03 |
- |
- |
- |
- |
- |
≥0.04 |
|
|
|
钼冷硬球墨复合铸铁轧辊 |
2.90~3.80 |
0.40~1.20 |
0.20~1.00 |
≤0.45 |
≤0.03 |
- |
- |
0.20~0.80 |
|
|
≥0.04 |
|
|
|
冷硬铸铁轧辊 |
铬钼冷硬球墨复合铸铁轧辊 |
2.90~3.80 |
0.40~1.20 |
0.20~1.00 |
≤0.45 |
≤0.03 |
|
0.20~0.80 |
0.20~0.80 |
|
|
≥0.04 |
|
|
铬钼钒冷硬球墨复合铸铁轧辊 |
2.90~3.80 |
0.40~1.20 |
0.20~1.00 |
≤0.45 |
≤0.03 |
|
0.10~0.30 |
0.20~0.80 |
0.10~0.30 |
|
≥0.04 |
|
|
|
铬钼铜冷硬球墨复合铸铁轧辊 |
2.90~3.80 |
0.40~1.20 |
0.20~1.00 |
≤0.45 |
≤0.03 |
|
0.10~0.6 |
0.20~0.60 |
|
0.40~1.00 |
≥0.04 |
|
|
|
无限冷硬铸铁轧辊 |
铬钼无限冷硬铸铁轧辊 |
2.90~3.70 |
0.60~1.20 |
0.40~1.20 |
≤0.25 |
≤0.12 |
|
0.60~1.20 |
0.20~0.60 |
|
|
|
|
|
镍铬钼无限冷硬 |
2.90~3.70 |
0.60~1.20 |
0.40~1.20 |
≤0.25 |
≤0.12 |
0.50~1.00 |
0.70~1.20 |
0.20~0.60 |
|
|
|
|
|
|
铸铁轧辊(I) |
||||||||||||||
镍铬钼无限冷硬铸铁轧辊(Ⅱ) |
2.90~3.70 |
0.60~1.20 |
0.40~1.20 |
≤0.25 |
≤0.12 |
1.01~2.00 |
0.70~1.20 |
0.20~0.60 |
|
|
|
|
|
|
镍铬钼无限冷硬铸铁轧辊(Ⅲ) |
2.90~3.70 |
0.60~1.20 |
0.40~1.20 |
≤0.25 |
≤0.12 |
2.01~3.00 |
0.70~1.30 |
0.20~0.60 |
|
|
|
|
|
|
镍铬钼无限冷硬铸铁轧辊(Ⅳ) |
2.90~3.70 |
0.60~1.20 |
0.40~1.20 |
≤0.20 |
≤0.12 |
3.00~5.00 |
1 |
0.20~0.60 |
|
|
|
|
|
|
球墨铸铁轧辊 |
普通半冷硬球墨铸铁轧辊 |
2.90~3.80 |
0.80~2.50 |
0.40~1.20 |
≤0.25 |
≤0.03 |
|
|
|
|
|
≥0.04 |
|
|
低铬半冷硬球墨铸铁轧辊 |
2.90~3.80 |
0.80~2.50 |
0.40~1.20 |
≤0.25 |
≤0.03 |
|
0.20~0.60 |
|
|
|
≥0.04 |
|
|
|
铬钼半冷硬球墨铸铁轧辊 |
2.90~3.80 |
0.80~2.50 |
0.40~1.20 |
≤0.25 |
≤0.03 |
|
0.20~0.60 |
0.20~0.60 |
|
|
≥0.04 |
|
|
|
低铬钼钒钛半冷硬球墨铸铁轧辊 |
2.90~3.80 |
0.80~2.50 |
0.40~1.20 |
≤0.25 |
≤0.03 |
|
0.20~0.60 |
0.20~0.60 |
0.10~0.30 |
|
≥0.04 |
0.03~0.30 |
≥0.025 |
|
铬钼铜半冷硬球墨铸铁轧辊 |
2.90~3.80 |
0.80~2.50 |
0.40~1.20 |
≤0.25 |
≤0.03 |
|
0.20~0.60 |
0.20~0.60 |
|
0.40~1.00 |
≥0.04 |
|
|
|
铬钼无限冷硬球墨铸铁轧辊 |
2.90~3.80 |
0.80~2.50 |
0.40~1.20 |
≤0.25 |
≤0.03 |
|
0.20~0.60 |
0.20~0.60 |
|
|
≥0.04 |
|
|
|
铬钼铜无限冷硬球墨铸铁轧辊 |
2.90~3.80 |
0.80~2.50 |
0.40~1.20 |
≤0.25 |
≤0.03 |
|
0.20~0.60 |
0.20~0.60 |
|
0.04~1.00 |
≥0.04 |
|
|
|
低铬无限冷硬球墨铸铁轧辊 |
2.90~3.80 |
0.80~2.50 |
0.40~1.20 |
≤0.25 |
≤0.03 |
|
0.20~0.60 |
|
|
|
≥0.04 |
|
|
|
低铬钼钒钛无限冷硬铸铁轧辊 |
2.90~3.80 |
0.80~2.50 |
0.40~1.20 |
≤0.25 |
≤0.03 |
|
0.20~0.60 |
0.20~0.60 |
0.10~0.30 |
|
≥0.04 |
0.03~0.30 |
≥0.025 |
|
镍铬钼无限冷硬球墨铸铁轧辊(I) |
2.9~3.80 |
0.80~2.50 |
0.40~1.20 |
≤0.25 |
≤0.03 |
≤1.00 |
0.20~0.60 |
0.20~0.60 |
|
|
≥0.04 |
|
|
|
镍铬钼无限冷硬球墨铸铁轧辊(Ⅱ) |
2.90~3.80 |
0.80~2.50 |
0.40~1.20 |
≤0.25 |
≤0.03 |
1.00~3.00 |
0.30~1.20 |
0.20~0.80 |
|
|
≥0.04 |
|
|
|
镍钼球墨铸铁轧辊(I) |
3.20~3.70 |
1.50~2.40 |
0.20~0.90 |
≤0.05 |
≤0.03 |
1.00~2.50 |
0.10~0.50 |
0.40~0.80 |
|
|
≥0.04 |
|
|
|
镍钼球墨铸铁轧辊(Ⅱ) |
2.90~3.60 |
1.20~2.40 |
0.30~0.80 |
≤0.10 |
≤0.03 |
|
0.10~0.50 |
0.40~1.00 |
|
|
≥0.04 |
|
|
|
镍钼球墨铸铁轧辊(Ⅲ) |
2.90~3.60 |
1.00~2.20 |
0.30~0.80 |
≤0.10 |
≤0.03 |
3.51~4.50 |
0.10~0.50 |
0.40~1.00 |
|
|
≥0.04 |
|
|
|
高铬铸铁轧辊 |
高铬铸铁轧辊 |
2.30~3.30 |
0.30~1.00 |
0.50~1.2 |
≤0.20 |
≤0.06 |
1.00~1.70 |
12.00~22.00 |
0.70~2.50 |
|
|
≥0.04 |
|
|
其他 |
1.可用部分铜代替镍,但不得超过含镍量的1/3 |
|||||||||||||
要求 |
2.含有稀土元素的球铁轧辊,残镁量(质量分数)不得小于0.03% |
表2 铸铁轧辊的物理性能
分类 |
名 称 |
辊身硬度HSD |
辊颈硬度HSD |
辊身表面硬度不均匀度HSD |
抗拉强度ób/Mpa |
白口层深度/mm |
||||||
型 钢 |
板钢 |
|||||||||||
≤Ф |
Ф201~250mm |
Ф251~300mm |
> Ф |
薄板 |
中板 |
|||||||
冷硬铸铁轧辊 |
普通冷硬铸铁轧辊 |
55~70 |
32~48 |
≤5 |
>150 |
12~25 |
15~30 |
17~35 |
20~45 |
|
8~45 |
|
钼冷硬铸铁轧辊 |
55~70 |
32~48 |
≤5 |
>150 |
12~25 |
15~30 |
17~35 |
20~45 |
|
8~45 |
||
铬钼冷硬铸铁轧辊 |
55~70 |
32~48 |
≤5 |
>150 |
12~25 |
15~30 |
17~35 |
20~45 |
|
8~45 |
||
镍铬冷硬铸铁轧辊 |
55~70 |
32~50 |
≤5 |
>150 |
12~25 |
15~30 |
17~35 |
20~45 |
|
8~45 |
||
镍铬钼冷硬铸铁轧辊(I) |
60~75 |
35~52 |
≤5 |
>150 |
12~25 |
15~30 |
17~35 |
20~45 |
|
8~45 |
||
镍铬钼冷硬铸铁轧辊(Ⅱ) |
60~80 |
40~55 |
≤5 |
>150 |
12~25 |
15~30 |
17~35 |
20~45 |
|
8~45 |
||
镍铬钼冷硬铸铁轧辊(Ⅲ) |
70~85 |
40~55 |
≤5 |
>150 |
12~25 |
15~30 |
17~35 |
20~45 |
|
8~45 |
||
普通冷硬球墨复合铸铁轧辊 |
55~70 |
32~48 |
≤5 |
>280 |
|
|
|
|
8~35 |
8~45 |
||
钼冷硬球墨复合铸铁轧辊 |
58~70 |
32~48 |
≤5 |
>300 |
|
|
|
|
8~35 |
8~45 |
||
铬钼冷硬球墨复合铸铁轧辊 |
58~70 |
32~48 |
≤5 |
>300 |
|
|
|
|
8~35 |
8~45 |
||
铬钼钒冷硬球墨复合铸铁轧辊 |
58~70 |
32~48 |
≤5 |
>300 |
|
|
|
|
8~35 |
8~45 |
||
铬钼铜冷硬球墨复合铸铁轧辊 |
58~70 |
32~48 |
≤5 |
>300 |
|
|
|
|
8~35 |
8~45 |
||
无限冷硬铸铁轧辊 |
铬钼无限冷硬铸铁轧辊 |
55~70 |
35~55 |
≤5 |
>160 |
|
|
|
|
|
|
|
镍铬钼无限冷硬铸铁轧辊(I) |
55~72 |
35~55 |
≤5 |
>160 |
|
|
|
|
|
|
||
|
|
|
|
|||||||||
镍铬钼无限冷硬铸铁轧辊(Ⅱ) |
55~72 |
35~55 |
≤5 |
>160 |
|
|
|
|
|
|
||
镍铬钼无限冷硬铸铁轧辊(Ⅲ) |
60~75 |
35~55 |
≤5 |
>160 |
|
|
|
|
|
|
||
镍铬钼无限冷硬铸铁轧辊(Ⅳ) |
65~85 |
35~55 |
≤5 |
>160 |
|
|
|
|
|
|
||
球墨铸铁轧辊 |
普通半冷硬球墨铸铁轧辊 |
35~50 |
30~45 |
≤8 |
>300 |
|
|
|
|
|
|
|
低铬半冷硬球墨铸铁轧辊 |
40~55 |
32~45 |
≤8 |
>300 |
|
|
|
|
|
|
||
铬钼半冷硬球墨铸铁轧辊 |
40~55 |
32~45 |
≤8 |
>300 |
|
|
|
|
|
|
||
低铬钼钒钛半冷硬球墨铸铁轧辊 |
40~55 |
32~45 |
≤8 |
>300 |
|
|
|
|
|
|
||
铬钼铜半冷硬球墨铸铁轧辊 |
40~55 |
32~45 |
≤8 |
>300 |
|
|
|
|
|
|
||
铬钼无限冷硬球墨铸铁轧辊 |
55~70 |
35~55 |
≤5 |
>300 |
|
|
|
|
|
|
||
铬钼铜无限冷硬球墨铸铁轧辊 |
55~70 |
35~55 |
≤5 |
>300 |
|
|
|
|
|
|
||
低铬无限冷硬球墨铸铁轧辊 |
50~65 |
32~55 |
≤5 |
>300 |
|
|
|
|
|
|
||
低铬钼钒钛无限冷硬球墨铸铁轧辊 |
55~80 |
32~55 |
≤5 |
>300 |
|
|
|
|
|
|
||
镍铬钼无限冷硬球墨铸铁轧辊(I) |
48~70 |
35~55 |
≤5 |
>320 |
|
|
|
|
|
|
||
镍铬钼无限冷硬球墨铸铁轧辊(Ⅱ) |
60~70 |
35~55 |
≤5 |
>320 |
|
|
|
|
|
|
||
镍钼球墨铸铁轧辊(I) |
42~48 |
32~43 |
≤5 |
>400 |
|
|
|
|
|
|
||
镍钼球墨铸铁轧辊(Ⅱ) |
55~75 |
35~55 |
≤5 |
>400 |
|
|
|
|
|
|
||
镍钼球墨铸铁轧辊(Ⅲ) |
60~80 |
35~55 |
≤5 |
>400 |
|
|
|
|
|
|
||
高铬铸铁轧辊 |
高铬铸铁轧辊 |
55~95 |
40~55 |
≤5 |
>400 |
|
|
|
|
|
|
|
复合轧辊芯部 |
灰铸件球墨铸件 |
|
32~48 |
|
>160 |
|
|
|
|
|
|
|
35~48 |
|
>300 |
|
注:辊身两端同一截面上白口层最深最浅之差不得大于l
(3)加工尺寸允许偏差见表3。
表3 铸铁轧辊的加工尺寸允许偏差
轧辊部位 |
直 径 |
长度/mm |
表面粗糙度/μm |
辊身 |
+ 0.8% -0.5% |
±l |
12.5 |
辊颈 |
士O |
土2 |
3.2 |
梅花头 |
± |
±l |
|
梅花头铣槽 |
R± |
|
|
注:轧辊加工应按供需双方认可的图样制造,未注明的加工尺寸允许偏差应符合表
中规定,如有特殊要求的轧辊,可由供需双方另定。
(4)外层厚度见表4。
表4 离心铸造轧辊的外层(工作层)厚度
轧辊名称 |
外层(工作层)厚度/mm |
||
型 钢 |
板 钢 |
||
¢200~300mm |
≥≯ |
||
冷硬铸铁轧辊 |
20~40 |
20~50 |
≥25 |
无限冷硬铸铁轧辊 |
20~40 |
20~50 |
≥25 |
球墨铸铁轧辊 |
20~40 |
40~60 |
≥25 |
高铬铸铁轧辊 |
|
|
≥25 |
注:球墨铸铁轧辊应保证球状石墨加团絮状(包括蠕虫状)石墨之和大于石墨总量的80%。