BenQ SX930 Service Manual page 40

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TABLE 3 产品镁铝合金制品之黑点、杂质、凸点、砂粒缺陷检验标准检验规范
(Magnesium-Aluminum Alloy Products that Dot, Blemish, and Others spec.)
规格
Spec
2
(面积 cm
2
( Area cm
2
杂质
P < 0.1 mm
Particl
e
0.1≦P< 0.3 mm
黑点
点距 ≥7.5cm
Blemis
Distance
h
0.3≦P <0.5mm
|
点距 ≥ 7.5cm
异色
Distance
0.5≦P <0.7mm
Color
点距 ≥ 7.5cm
spot
Distance
2
凸点
P<0.1 mm
点距 ≥ 7.5cm
砂粒
Distance
棉絮
0.1≦P<0.3mm
毛屑
点距 ≥ 7.5cm
Particl
Distance
e
|
0.3≦P < 0.5mm
同色
点距 ≥ 7.5cm
Distance
Spot
0.5≦P < 0.7mm
with
点距 ≥ 7.5cm
same
Distance
color
Total
Side C:
W < 0.2mm , L < 1mm 容许 4 个
Only 4 this kind of scratch is accepted
W < 0.2mm , L < 3mm 容许 3 个
Only 3 this kind of scratch is accepted
W < 0.2mm , L < 3-5mm 容许 2 个
Only 2 this kind of scratch is accepted
Note:
刮伤见底材者不允许
Severe scratch which disclose the Natural
1. 刮擦伤两两需相距 5cm 以上
Each scratch should be 5cm more far away from each other
A 级面
A surface
(允许数)
)
(Number of defect)
)
20*20 50*50 70*70
不计
不计
不计
Ignor
Ignor
Ignore
e
e
2
1
2
3
2
0
0
0
2
0
0
0
不计
不计
不计
Ignor
Ignor
Ignore
e
e
2
2
2
3
2
1
1
2
2
0
0
1
3
3
4
B 级面
B surface
(允许数)
(Number of defect)
100*10
20*20 50*50 70*70
0
不计
不计
不计
Ignor
Ignor
Ignore
e
e
4
2
3
0
2
2
0
0
0
不计
不计
不计
Ignor
Ignor
Ignore
e
e
4
3
4
3
2
2
2
1
1
5
5
6
40
(Number of defect)
100*1
20*20 50*50 70*70
00
不计
不计
不计
不计
Ignor
Ignor
Ignor
Ignor
e
e
e
3
5
3
3
4
2
1
2
1
不计
不计
不计
不计
Ignor
Ignor
Ignor
Ignor
e
e
e
5
6
4
3
4
2
2
3
1
7
8
6
C 级面
C surface
(允许数)
100*1
00
不计
不计
Ignor
Ignore
e
e
4
5
6
3
4
5
2
3
4
不计
不计
Ignor
Ignore
e
e
5
6
7
3
3
4
2
2
3
7
8
9

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