更改历史 History of Change
版本/修订号
Ver./Rev.
更改内容(摘要)
The Content of Change (Summary)
更改单编号
No. of DCN
申请部门
Dept.
申请人
Applicant
日期
Date
01/000
新发行
--
技术质量部
缺陷名称
Defect Name
缺陷代码Code
电阻系数不合格
unqualified resistivity
001
铸锭厚度不合格
unqualified thickness of slabs
002
铸锭长度不合格
unqualified length of slabs
003
铸锭表面腐蚀
surface corrosion of slabs
004
漏铝
metal bleedouts
005
过滤网掉入铸锭
head bag inclusions
006
化学成分超标
chemical composition over limits
007
拉痕
drag
008
夹杂
inclusions
009
氧化
oxidation
010
气孔
porosity
011
冷隔
cold shuts
012
机械损伤
mechanical damages
013
裂纹
crack
014
裂口(张口)
mouth crack
015
铸造组织不均匀
inhomogeneous slab structure
016
晶粒度等级不合格
unqualified grain size
017
铸锭头部翘曲变形严重
serious warping at slab tops
018
边部弯曲超差
curve in side
019
长度弯曲超差
curve in length
020
宽度弯曲超差
curve in width
021
表面扭曲
skew surface
022
锯口垂直度不合格
unqualified verticality of sawed slabs
023
锯口毛刺
saw burrs
024
粗糙度不合格
unqualified roughness
025
铣后表面波浪
surface wave after scalping
026
铣后铸锭两端厚差过大
thickness deviation too much on both ends of slab after scalping
027
铣后铸锭每端两侧厚度差过大
thickness deviation too much on both sides of each end after scalping
028
加热时间错误
wrong heat time in the furnace
029
材料温度过高
material temperature is too high
030
材料温度过低
material temperature is too low
031
缺陷名称
Defect Name
缺陷代码Code
轧件头部张口
crocodiling
032
乳液痕
coolant stain
033
加热时复合层分离
cladding sheet separated during preheating
034
金属压入
rolled in metal
035
复合层脱落
cladding layer peeling
036
复合层损伤
damage of cladding plate
037
错误复合率
wrong cladding ratio
038
镰刀弯
camber
039
断带
strip break
040
震痕或颤痕
chatter marks
041
厚度超差
off gauge
042
边部波浪
edge buckle
043
中间波浪
center buckle
044
二肋浪
quarter buckle
045
分层
cladding sheet separate from core slab
046
亮带
bright line
047
表面色差
heat streak
048
油斑
oil stain
049
辊印(压印)
mill mark
050
压折
wrinkling
051
压坑
dents
052
孔洞
holes
053
气泡
blister
054
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