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I lal•nm I Au.aunli:r l l m <br /> ----------- <br /> k(:N nfh 1710 46" <br /> 1"1 ,—j(''n.o, <br /> P� JV 59 N'iovm <br /> R'clLrl i II I'orA,'I be <br /> I'U NPA 16114.tYi Jt.rl li P.Irk <br /> NSW 210.1 hu=uaha <br /> DuPont Anstralia Taepinnw 02,-Pn 6111 <br /> F;icimil: pl'1`l7?74311 <br /> WR3419-02 <br /> 2 July 2002 <br /> B CKA GROUND <br /> Five samples of hose clamps were submitted for heat/cold cycling. The were <br /> assembled by the customer and tested as received. <br /> EXPERIMENTAL <br /> The assemblies were placed in an air oven at 150°C for 8 hours. <br /> They were alloewd to cool to ambient temperature overnight. <br /> They were cooled to—40°C and kept at approximately—40 with liquid nitrogen. It was <br /> found that the temperature rose approximately 10°C in 1 hour so the samples were <br /> cooled to approximately—45°and the temperature adjusted every hour. <br /> They were then allowed to warm to room temperature overnight and then the cycle <br /> was repeated. <br /> No attempt was made to retension the clamps at any stage. <br /> RESULTS <br /> Cycle Date Temperature Comments <br /> I heat 30/5 150°C <br /> 1 cool 31/5 -40°C Inial temperature—90°C <br /> 2 heat 3/6 150°C <br /> 2 cool 4/6 -40°C -45°C—35°C <br /> 3 heat 5/6 150°C <br /> 3 cool 6/6 -40°C -45°C—35°C <br /> 4 heat 7/6 150°C <br /> 4 cool 11/6 -40°C 45°C—35°C <br /> 5 heat 12/6 150°C <br /> 5 cool 13/6 -40°C -45°C—35°C <br /> 6 heat 14/6 150°C <br /> 6cool 17/6 �0°C 45°C-35°C <br /> ;A <br /> DISCLAIMER ine lniduLMOn atfmW lemn lefUMiSW Dema on tothimcal dote thnl OnfbnL6allC ceW ba mliebk.It ie <br /> lmawad faun by pennm hint.$technical doll,at dla4 own dlecmdon oad Aa m aith nny moo-alnl,enluwuo of any campou,W undueM u¢ <br /> condidonapnampwncuaanciamenbal The 1)&Oln('nmpany metes nogumantaoe afineuW and",vn,no obligadon m habi0ty in <br /> comeodon withlu advice. 77le publication it not to he mken tie a Ikon..to Opemu under m mcommendNon b lnfdage any pawn. Thi, <br /> mpod ie copyright mil e1Wl as Ee,p,oduced eaepl In NII,O <br />