Document jgkEvvex66mqRpadBpQkYxvNZ
cc:form DC oooie.ni L. S. Dymitro H. Gosselink
DANA CORPORATION
Victor Divisions
INTRA-COMPANY COMMUNICATION
subject Victopac 100 Thickness Control
date December 2, 1969
to Steve Lillis
Your letter of November 18, requests information regard ing our ability to make Victopac 100 to a tolerance of +/.0025, .0020, .0015. I must state that we cannot at this time hold gage in these ranges. The best that vve can do on a pro duction basis is +/- .004. It is true that vve are supplying some material to Chicago at present which is held better than +/- .004 but this is done on a selected b'asis, material out of gage is diverted to Robinson use. Victopac-100 would not be a material that could be used at Robinson due to--coat-even if de viation authority would be .allowed. Your letter points out that
the Viton Elastomer in Victop'a'c 100 costs 20 times as much as
the Neoprenes used in the njore stan'dard Victopac material.
Steve Cerve sent a memo to G; Rrown in early October quot
ing a sheet cost of $18.26 per 62J x 56J sheet. This was in
response to a memo from George which gave no indication of gage
restriction other than the standard +/- .005. The cost of
this was based on results experienced in project 84407, formula
number 839. Again, no gage restrictions. I must point out
that if a tighter tolerance is required, out of gage shTeets
.
must be paid for by .the customer one.way or another. Robinson
cannot absorb the costs of rejected sheets, nor can we absorb
the cost of centers or ends trim. This is true for .031/.037
which your letter states you are presently specifying (?)
.
In affect I submit that the customer will have to pay for the full sheet/full batch, regardless of yield as there is no other outlet for the materials I presume salvage through refiberizing would also be question mark. I know of no experi ments or formulas which establish that refiberized material may be used. I would also comment that maintaining refiberized Viton Victopac in our present equipment would introduce the probability of contamination with other refiberized material.
The results of a discussion at Robinson regarding a method to hold gage as required suggests at least two major needs:
1. Rebuild mills and run in and back out devices, new bearings, ratcheting devices, etc.
2. Automatic feeding equipment to feed mix Into the mills.
' . (continued)
DANA-295
VPD-91-0001070
Page (2)
Letter to Steve Lillis
December 2, 1969
Gage as well as density seem to be a function of method
and soeed of feed, (presently performed manually) and mechan
ical tightness of the mill. This would cost a great deal of
money but I cannot estimate a figure at this time. Investi
gations into the affect of wet or dry mix on gage would also
be required. It is our opinion that this too plays a part in
gage control. How much is this capability worth to us? What
dollars of profit will it generate? What is forecasted demand?
Would one mill be enough? Should we consider purchase of a
small mill (12" or 24") for the purpose of close tolerance con
trol, who in the industry offers a +/- .002 mill sheet in the
60" sheet size?
.
J
Have I answer
HD/bkl
C.C.: .
'.V. SheeharA G. Brown C. Hayden M. Blaho S. Cerve G. Stohler L. Smagatz J. Feldmann J. Zeitz
VPD-91-0001071