General Product Of Plastic Outlook Inspection Standard - BenQ MP611 Product Service Manual

1. Use the 20*20 criteria to the area less than 20*20; 50*50 inspection criteria to the area
20*20≦A<50*50; etc.
(Particle/Blemish/Color Spot)
1.1 Definition of surface A, B, C refer to 6.2
1.2 Blemish around the logo must be equal or smaller than 0.05 mm
1.3 Bubble on the surface is to be reject.
TABLE 2 :(General Product of plastic outlook inspection standard)
No Appearance
1 Shrinkage
2 Run, Texture, Gloss
3 Welding Line/Knit Line
4 Ejector Mark
5 Label/screws shortage
6 Material shortage
7 Chromatic aberration
8 Printing
9 Logo of panel sticker
10 Scratch/Nicks
A region: No Shrink. With gloves, no feeling of sink when touching the surface
B/C region: not obvious
No obvious non-uniformity
When scratching on it, there's no feeling of obstruction. Also, there should not
be obvious difference in gloss nearby it.
Reject
Reject
Material shortage is not allowed to impact structure strength and surface
(Painting): ΔE<=2; L<=1.5 ; Δ A,B <= 0.6
(Paint, aluminum).
ΔE<=2 L<=1.0; Δ A, B <= 0.6
(Paint, non-aluminum)
(Raw material) : ΔL,A,B<=0.6 ,ΔE<=0.75
Printing must not have incomplete printing, break off, overlap, uneven
thickness, excessive ink, printing misalignment (1mm), printing slanting &
crooked (<0.3mm)
Printing color must be comparable to color chip and sample.
Printing must not have incomplete printing, break off, overlap, uneven
thickness, excessive ink, printing misalignment (1mm), printing slanting &
crooked (<0.4mm)
Printing color must be comparable to color chip and sample.
Side A:
(W < 0.1mm , L < 3mm): Only 1 this kind of scratch is accepted
W < 0.1mm , L < 3-5mm No this kind of scratch is accepted
Side B:
W < 0.15mm, L< 3mm Only less than 2 this kind of scratch is accepted
W < 0.15mm , L < 3-5mm Only 1 this kind of scratch is accepted
Side C:
W < 0.2mm , L < 1mm Only 4 this kind of scratch is accepted
Spec
50
2