收藏词条 编辑词条 铸钢轧辊(GB/T1503-1991)
(1)分类与化学成分见表1。
表1 铸钢轧辊的分类与化学成分
分类 |
牌号 |
化学成分(质量分数)(%) |
|||||||
C |
S |
Mn |
Cr |
Ni |
M0 |
P |
S |
||
优质碳素钢 |
ZU70 |
0.65~O.75 |
0.20~0.45 |
O.50~0.80 |
|
|
|
≤O.040 |
≤O.040 |
ZU70Mn |
0.65~O.75 |
0.20~0.45 |
O.90~1.20 |
|
|
|
≤0.040 |
≤0.040 |
|
ZU80 |
0.75~0.85 |
0.20~0.45 |
0.50~0.80 |
|
|
|
≤0.040 |
≤0.040 |
|
合金钢 |
ZU60CrMnMo |
0.55~0.65 |
0.20~0.45 |
O.90~1.20 |
0.80~1.20 |
|
0.20~0.45 |
≤0.035 |
≤0.030 |
ZU650NiMo |
O.60~0.70 |
0.20~0.60 |
0.50~0.80 |
0.80~1.20 |
0.20~0.50 |
0.20~0.45 |
≤0.035 |
≤0.030 |
|
ZU70Mn2 |
0.65~0.75 |
0.20~0.45 |
1.40~1.80 |
|
|
|
≤O.035 |
≤0.030 |
|
ZU70Mn2Mo |
O.65~0.75 |
0.20~0.45 |
1.40~1.80 |
|
|
0.20~0.45 |
≤O.035 |
O.030 |
|
ZU75CrMo |
O.70~0.80 |
0.20~0.45 |
0.60~0.90 |
0.75~1.00 |
|
0.20~0.45 |
≤O.035 |
≤0.030 |
|
ZU75CrNiMnMo |
0.70~0.80 |
0.20~0.60 |
O.70~1.10 |
O.90~1.20 |
0.20~0.50 |
0.20~0.45 |
≤0.035 |
≤0.030 |
|
ZU80Cr |
O.75~0.85 |
0.20~0.45 |
O.50~0.80 |
O.45~0.70 |
|
|
≤O.035 |
≤0.030 |
|
半钢 |
ZUBl40CrMo |
1.30~1.50 |
O.30~0.60 |
0.70~1.10 |
0.80~1.20 |
|
0.20~0.45 |
≤0.035 |
≤0.030 |
ZUBl40CrNiMo |
1.30~1.50 |
0.30~0.60 |
0.70~1.10 |
0.80~1.20 |
≥O.20 |
0.20~0.60 |
≤O.035 |
≤O.030 |
|
ZUBl60CrMo |
1.50~1.70 |
O.30~0.60 |
0.70~1.10 |
0.80~1.20 |
|
0.20~0.60 |
≤0.035 |
≤O.030 |
|
ZUBl60CrNiMo |
1.50~1.70 |
O.30~0.60 |
0.70~1.10 |
0.80~1.20 |
≥0.20 |
0.20~0.60 |
≤0.035 |
≤0.030 |
|
石墨钢 |
ZUSl40SiCrMo |
1.30~1.50 |
1.30~1.60 |
0.50~0.80 |
O.40~0.70 |
|
0.20~0.50 |
≤O.035 |
≤0.030 |
ZUSl50SiCrNiMo |
1.40~1.60 |
1.00~1.60 |
0.60~1.00 |
O.60~1.00 |
≥O.20 |
O.20~0.50 |
≤O.035 |
≤O.030 |
(2)硬度值见表2。
表2 铸钢轧辊的表面硬度值
分类 |
牌号 |
硬度HS |
|
辊身 |
辊颈 |
||
优质碳素钢 |
ZU70 |
32~42 |
≤42 |
ZU70Mn |
32~42 |
≤42 |
|
ZU80 |
34~44 |
≤44 |
|
合金钢 |
ZU60CrMnMo |
32~42 |
≤42 |
ZU65CrNiMo |
35~45 |
≤45 |
|
ZU70Mn2 |
34~44 |
≤44 |
|
ZU70Mn2Mo |
36~46 |
≤46 |
|
ZU75CrMo |
36~46 |
≤46 |
|
ZU75CrNiMnMo |
35~45 |
≤45 |
|
ZU80Cr |
38~48 |
≤48 |
|
半钢 |
ZUBl40CrMo |
38~48 |
≤48 |
ZUBl40CrNiMo |
35~45 |
≤45 |
|
ZUBl60CrMo |
40~50 |
≤50 |
|
ZUBl60CRNiMo |
A:38~48B:48~58 |
≤48 |
|
石墨钢 |
ZUSl40SiCrMo |
36~46 |
≤46 |
ZUSl50SiCrNiMo |
40~50 |
≤50 |
部位 |
长度 |
直径 |
圆度 |
圆角 |
表面粗糙度 |
mm |
μm |
||||
辊身 |
±1.0 |
+3.O -1.0 |
|
|
12.5 |
辊颈 |
±1.O |
±0.5 |
≤O.2 |
|
3.2 |
梅花头 |
+3.0 -1.O |
士1.0 |
|
|
25 |
辊身端面 |
|
|
|
|
6.3 |
辊身与辊颈联接圆角偏差R |
|
|
|
≤0.5 |
|
注:1.一般光坯轧辊尺寸按规定的图样制造。其尺寸公差、加工精度、表面粗糙度应符合表中的规定。
2.光坯轧辊系指辊身和轧槽除留有加工余量外,其他部位均已加工到最终使用尺寸的轧辊。
注:ZUBl60CrNiMo材质硬度分为两类,可供需方选用。
(3)尺寸公差见表3。
表3铸钢轧辊的尺寸公差和加工精度