Document zdnE4M5bMzXr8XBBdwq47VMK0

FILE NAME Corning OC DATE 1966 Dec 30 DOC OC192 DOCUMENT DESCRIPTION Memo RE Kaylo Research & Development Monthly Report for Dec 1966 _ R. F. Shannon KAYLO RESEARCH AND DEVELOP LENT December 30 1766 2 A Laylo toen nosting was held at Berlin to rovies the status of the stress corrosion program including abipping and test marketing programs being conducted by I & Markoting Division Unfortunately explos shipped to Delaware Insulation Company as part of the test erict program found their way into a duPont plant and ultimately ultimately to a member of duboat's insulation Consittes for examination His remarks to the affect that be would not okay such a product even were if it the dupont 6 day stress corrosion survival passed test because it was too wift Flans for the official duPont plant trial sobeduled for December 20 wers therefore canceled ponding clarification clarification by Marketing of the situation with dupont . 2 All ware produced at Berlin during the three trials made so far have passed Product Tosting Laboratory 6 and 10 day survival tests and have averaged 31,000 PFA soluble silios at Lohigh There is no reason to balieve the product when subutted to dupont for stress corrosion testing should not pass The problem is physical strengths The modulus of rupture hardness and oppressive strengths are slightly lower than standard laylo The product is however adequats to be marketed as a special In fact except for compressive it meets our current CAS a t . A study was conducted at the request of Manufacturing to determine the effect possible conturination of X17 and R2 batch batch with the new stress corrosion batoh would have on physical properties K17 and 2 bateb vers intentionally contexinated with the stress corrosion batoh dust made from the stress corrosion batoh and with the silicated itsalf In all cases no significant advarse effect on the high ature properties of either 17 or 20 was noted at contaxination with glass texper- levels A new Portland cement modified batch 10L6X2 10L6X2 after an extended oraluation period at Berlin has resulted in in a stronger and harder product and has improved Plant afficiencies This batch his boen rubaitted to Product Testing for evaluation for compliance with the CAS and for ultimate official cortification & A major major overhaul SD gylinder vs and packing ware of Granville Kaylo proces aquipment including the carried out in December A new fan shaft basrings installed 242 242 a Mr. R. J. McEvoy : -2- December 30 1966 6. Initial investigations directed toward the elimination of asbestos fibers as rainforomment for Kayle wore undertaken Fibers under include Rockwool metal fibers and cotton fibers Initial itnevsetstdiagtaatiionndicate replacement of 50 of the asbestos currently in the product with 1/3 as much cotton string will mare than double impact strengths Considerable laboratory work was carried out to collect date nooded 7. for the preparation of the patent application covering our stress corrosion product The patent application will be filed in January RFS P. F. Shann 243