Shirota Integre Co., Ltd. Dear
September 30, 2015
Co., Ltd. INOAC Corporation
Global Quality Assurance Division
foam products Quality Assurance Department Quality Lesson 2
SM-55 black 3mm goods thickness poor
Dear Sir, I would like thank thicker custody in every time exceptional patronage.
Matter of subj, so we would like to submit as follows, thank you enough for your Sashu.
Sincerely
[content]
thickness defect is discovered in · SM-55 Black 3mm × 1000 × 2000 slice goods. 3mm → 4mm
thickness tolerance: 3.0mm ± 0.4
generation Quantity: about 100pcs (1000 × 2000 about 9000pcs up the seat) in parts
partially than-generation quantity it is likely that it was the thickness defect. Area than the generation quantity is enough 222cm2.
[Processing method]
the-raw was set on the table, by a band knife for rotation (knife)
and then slice. Cutlery has been held in the blade receiving.
[Cause]
than that, partial and thickness is defective, the following causes is estimated.
Hara at the anti-bottom of the cutlery entrance part, raw is due to the resistance of the receiving knife-blade
I sliced will lift floating state momentarily.
· For this reason thicker occurs, thin thing occurs in the following Zhou.
• In the bottom of the raw might phenomenon of the float is rare occurrence.
[Outflow cause]
, the top, the thickness changing section, it is bottom thickness measured at, but
it is thought that it could not detect the failure part is a point measurement.
[Generation measures]
for-sudden raw of float can not be prevented, we will prevent strengthening the thickness inspection outflow.
[Spill]
, cutlery entrance portion than point measurement is measured by sliding the L part of the figure
to change the way, it extends the detection range of the thickness defect.
Approval confirmation creating
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