Document a7XMnb9xbJqZOb7KZ9y9Y05X

FILE NAME: Ford (FD) DATE: 1971 DOC#: FD037 DOCUMENT DESCRIPTION: Handwritten letter to Ford Requesting Information with Response from Ford Research Staff ' / ^A\ s i O n < A r to 's p ( . ` 3 o Par K ; Md. ^ T -H Q I"\r. V`1. V-' \ K . I \C ti 3 \ - ; , I .. . V . 0 , o l "h e >C A ~ V-- ' i ' / :P ' \ P V j-' ' 1 'n t _ P >'v \ f C a i i '- - o e l 0 c o r r b e r u e , H C- Vv > O a u m1, 0 < i Oec\ r r MICHAEL HL-liCE. JR. iJ7l JA;. ,f . 04 l (\ .A Ve s t u i c VVa x V e 1CAC Va \ e (3VOC-c>YC)u \ A \A>' Hu_ lir>l MIvV-. (.C1 V'J J Ol(\ A tO i k U ^ r^.nC e-he i ivor r Kc t l'r_ ( \ 0 \ ) i CU C'S 0 \ Ve 1>(Xt a t y 3 'C a \ A t ; 4 h e3 C e ; C-w-'n (a a Kccrl . T o c o ~\ \'\ ` ^ . \ C\ VV\ \ ! 1 } \ * (. h a f W00 r A'. t rCn CC U J \jT(C' -* iu lip 'V"v(.- / \ r\cal t `C P\ > 0 u_' \ \0 ^ Lir-. i 1 '-- h :. , ' cl h r v-i ( k i/ Ana e\<L . u - W;u i v^X `-P. .'. . \*:-\ K i s c u 'c l 0 b-+ \ '*A 0 ( > \ c l% \ r\CL:d 'Vi .'v\ ~K \ \,c V( <'Gu iO >j vi C 4C.AC' -t 1\ b i <aK'c f' C k \AC\ .......... i\nucV\ Kcc\+ l`S c rea i ccl chu >.'ocj he t K<J / noiuml uce cuacI Cv0ru.se . j-f ^ jo u hew *. C'. u 0 1 11e r it . cj he. i f u ) i f i *> . n u e/ccun e . y t i t C f C' / L'l * -cv/tj - -I -o ; S {i I ' c U - 011986 PRODUCED BY FORD FAFD0011593 t. Ford Motor Company February 5 1971 20000 Rotunda Drive Dearborn, Michigan 48121 Mailing Address: P.O. Box 2053 Dearborn, Michigan 48121 Miss Jody G1ick 9321 F t . Andrews' Place C o lle g e Park, Maryland 507^0 P ear Mins C li c k : . In your recent le t t e r to D r. Ferenco you requested inform ation p ertain in g to asbestos usage in fr ic tio n m a te ria ls. Ford Motor Company, u n lik e General Motors and C h r y s le r , does not manufacture any o f i t s f r i c t i o n m a te ria ls fo r brakes o r c lu t c h e s . However) we do have the inform ation you req u e sted . Fjnee t h i s request writ; fo r your Science F a ir p ro je c t, T w ill send you only th a t inform ation which you could not reasonably expect t o fin d in a la r g e p u b lic lib r a r y , alo n g w ith some key references to aid your lib ra ry research. - Brake l in i n g and c lu tc h fa c in g m anufacturing methods and fo rm u latio n are u s u a lly considered to be p rop rietary inform ation by f r ic t io n m aterial m anufacturers. However some d e ta ile d in fo rm a tio n may be o btained from the Chemical A b stra cts on f r i c t i o n m a te ria l p a te n ts . J have en clo sed as a background o n .t h is s u b je c t a copy o f "Automotive Brake L in in g s". Automotive c lu tc h fa c in g s are made by a s im ila r p ro cess to some o f the brake lin in g s ; e ith e r through r e s in im pregnation o f asbestos-based y a m s and then winding or w eaving, or by making a "wet mix" o f r e s in , a sb e s to s , and f i l l e r s and then pressing to shape. In general c lu tch fa cin g s con tain more' rubber . and c la y , use lon ger f ib e r a s b e s to s . . The a sb e sto s used in both brake and c lu t c h m a te ria ls i s o f the c h r y s o tile type and comes p rim a rily from mines in Quebec, Canada. Inform ation on t h i s .form o f a sb e sto s can be o btained from th e A sbestos T e x t ile I n s t i t u t e , Quebec Asbestos M ining A s s o c ia tio n , and m ajor s u p p lie r s such as Jc h n s -M a n v ille Corporation or Asbestos Corporation, L td . (Thetford Mines, Quebec, Canada). T ech n ical inform ation on 'c h r y s o tile a sb e sto s'"' i s "in "th e ''.lite ra tu re ', g e n e r a lly ' pre-19i*5, w ith the b e s t papers by Mr. M. S . B a d o lle t . ! 011987 ! produced b y ford FAFD0011594 Miss Jody Glick 2 ' Pebrua17 5, 1971 Temperatures involved in The o p era tio n o f brakes and c lu tc h e s may be c o n fu s in g . A t the f r i c t i o n in te r fa c e ''fla s h '' tem peratures approach, and sometimes exceed, 1000,JC . The brake l in i n g or c lu tc h f a c in g b u lk tem perature/ norm ally is below 200C, but may reach 300G w ith severe usage and g e n e r a lly marked by heavy smoke, rap id wear, and "fa d e " c f f r i c t i o n . P o rtio n s c f a p re se n tly unpublished paper "Wear o f Brake M a te r ia ls " have been marked t o provide added background on brake tem peratures. The asbestos e fflu e n ts from brake and clu tch operation are cu rre n tly re ce iv in g a g re a t d e a l o f a t t e n t io n . Mr. Lynch o f the N a tio n a l C enter fo r Urban and In d u stria l Health has published a paper in the Journal o f A ir .P o llu tio n Control A s s o c ia tio n , D ec. 1068, V o l. 18, No. 12, pp 824-826. S e v e ra l rece n t papers on asbestos epidemiology have been w ritten by D r. I . J . S e lik o ff, o f C ity Univer s i t y o f New Y ork, Mt. S in a i School o f M e d icin e . Samples o f a sb e sto s a ls o have been e n clo se d . They have been sealed in p la s t ic bags f o r your p r o te c tio n . I f you must open the b a g s, Cease read the enclosed a r t ic l e by D r. S e lik o ff f i r s t . In d iscrim in ate h an d lin g o f lo o s e , dry asbestos .should be avoid ed. I hope th a t the in fo rm atio n su p p lied w ill provide an adequate s t a r t f o r your tim e ly and r e le v a n t rese arch p r o je c t . Should you fin d fu r th e r need fo r inform ation, feel free to ask. S i nc e re ly yon r s , enclosures eg Arnold Anderson Scien t i f i c be.'.eureh S t a f f ! 011988 PRODUCED BY FORD FAFD0011595