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Inspection Standard
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MARKING |
DEFINITION |
TOLERANCES QUALITY |
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A |
B |
C |
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100%
OF PIECES CHECKED VISUALLY |
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1.0--VISUALS |
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1.1
Edge
and Corner chips
1.2
Face and Side cracks
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Edge
Chip:
Corner
Chip:
Rectangular
to way to extrusion: Total length of cracks
Parallel
to way of extrusion: Total
length of cracks
·Crack
is defined with a width of ≥0.2mm ·Crack
is defined with a depth of ≥10mm |
Max.
1 chip Length:≤
10mm Width:
≤ 10mm Depth:
≤ 10mm
Max.
1 crack X=
Max. 1mm L≤22%
of UL
Max.
1 crack X=
Max. 1mm L≤25%
of UQ |
Max.
2 chips Length:≤
15mm Width:
≤ 15mm Depth:
≤ 15mm
Max.
2 cracks X=
Max. 1mm L≤33%
of UL
Max.
2 cracks X=
Max. 1mm L≤50%
of UQ |
Max.
3 chips Length≤ 30mm Width:≤ 30mm Depth:≤ 30mm
Max.
3 cracks X=
Max. 6mm L≤66% of U
Max.
3 cracks X=
Max. 6mm
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1.3
Web and Cell defects |
Missing
walls are not allowed to be situated side by side; defect is defined with a
depth of ≥10mm Missing Cells
Plugged
Cells
Deformed
Cells
Swollen
Web
Swollen
Center Post  |
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| Sum of all web and cell
defects which is max.
allowed: |
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| · Honeycomb 25×25 | Max. 3 |
Max. 5 |
Max. 10 |
| · Honeycomb 40×40 | Max. 5 |
Max. 10 | Max. 15 |
| · Honeycomb 50×50 |
Max. 5 | Max. 10 | Max. 15 |
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MARKING |
DEFINITION |
TOLERANCES
QUALITY |
TEST INSTRUMENT |
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A |
B |
C |
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2.0
– DIMENSIONALS |
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2.1
Entry(Sag)
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Max.
difference of a straight line drawing
of the sides
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Max.
1 mm |
Max.1.5mm |
Max.
5mm |
Tentacle
gauge Ruler |
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2.2
Bend
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Max. difference of a straight line
drawing of the length
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Max.
2 mm |
Max.
3mm |
Max.
5mm |
Tentacle
gauge Plate |
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2.3
Dimensions
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Measurement
of a honeycomb rectangular
to way to extrusion
Measurement
of a honeycomb parallel
to way of extrusion |
+2mm -0mm
+2mm -1mm |
+2mm -1mm
+3mm -3mm |
+6mm -3mm
+6mm -6mm |
Slide
caliber
Slide
caliber |
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The Tolerance Quality of 400 CPSI Honeycomb Ceramic
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Items |
Tolerance |
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Wall Thickness（mm） |
±0.05 |
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Physical Dimension（mm） |
< 100 |
±1.0 |
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≥100 |
±1.5 |
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Parallelism（mm） |
≤1.5 |
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| Degree of Circularity（mm） |
<100 |
1.5 |
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≥100 |
2.0 |
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Vertical（mm） |
Not more than 2% product height |
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