Document 2qvpjnwBKw5v56jeX6yrNv7oN

GH% September 19, 1952 A* B. fisher C. ?. Bassveiler X. V. Baffin* Alvin Brown J. A. O'Brien C. B. Barnett J. J>. Lowry - Toronto Plant (To be noted by:} A* Alpine V* E. Boyd R. S. Gardner G. B. Poole Task fore* Report Bo. 27 Special Tiber Ron 27-1/2$ M-387-0 (305* Australian Blue. 705* 6D20) 6" - 150 Pipe Attached hereto are copies of .the above Task -Force Report. As a result of the work based on Task Force Report Ho. 27* an extended production ran Is being made using a fiber blend consisting of XS Blue kZ and dD fibers, so that sufficient data vlU be obtained to sake cc: R. R. XilUaBe^Research G. B. Brown-Resear.ch A, DelRocco-Kanville R. H. Kelsel-Research H. Jacobs-Hanviile J* R. Bcbson-Xanvllxe A* J. Schilling-Many!lie J. Q. Trice-Research ^ H. J. O^Brien-Kanvllle Hhalen-Kanvllle B Hovlln-Research P. B. Proctor R. Hebei %. E. C. Idndstrom V. L. Yanderbeek G, Smolak-Research H. E. Rlchards-Manville P. B* Cannon ?. S. Mr. Lowry - Ve are not attaching a cony of this report since I left one with you yesterday when in Toronto. Research Center r'\j. September I* 1952 ^ _ File*' 425-B7a-l 4\ S# Collier - G,H, (16K . P, D, Cannon - G,H* H, E Richards - Manvilla G. Soolak i^fn Special Fiber Run 27-1/2* M-387-0 (30* Australian Blue, 70* 20) 6* - 150 Pipe Task Force Report Ho, 27 The attached report covers the preliminary plant run of July 1, 1952 using 30 per cent Australian Blue, 70 per cent 20 fiber (Blend M-387-0) in the manufacture of 6"--150 pipe* The results shoved no significant difference between the use of 27-1/2 per cent M-387-0 and the use of 25 per cent M-360-2 in forming characteristics or ultimate strength level* The pipe made with the special blend did appear to be more brittle than the standard blend pipe. fs cot Task Force: v P, B* Procter -- G.H, A* R, Girard! -- GH (4) H. J. 0!Brien - Manvilie A, Del Rocco - Manvllle A, H. Schilling - Manvllle K, J. tfhalen R Hebei J, Q. Trice The Task Force byt D* Hovlin Report Ho. TF-27 September 15 1952 ;?'C` SPECIAL FIBER RUB . 27-1/2* H-387-0 (30* AUSTRALIAN BLUE, 70% 6D20) 6" - 150 PIPE Task Force Report No. 27 SUMMARY& A preliminary plant nan on the Manvllle No. 2 machined shoved that the use of 27-1/2 per cent of a blend composed of 30 per cent Australian Bluet 70 per cent 6D20 In 6-in. 150 pipe results in forming characteristics and ultimate strength levels in hydro, flexure and crush, comparable to the use of 25 per cent of standard blend M-360-2. UBS* The special blend was made up of the -following virgin fibers* Australian Ml1** 6D20 3036 70* The blend was viHoved without scrap addition and vat designated as Blend M-387-0. This blend was used on the machine at 27-1/2 per cent furnish in approximately 100 sections of 6-in. 150 pipe on July 1, 1952 on the Manvllle Bo. 2 machine. The 6-in. 150 pipe manufactured before and after the special run ulth 25 per cent of M-360-2 vere followed for comparison purposes. Test pipe for destruction tests in hydro and flexure vere selected at the machine. Samples of the dry stock feed to the ware taken and used in making sag cakes. Use of the special blend, M-387-0, did not noticeably change the forming characteristics** The pipe formed veil and had the same forming times as vhen using the standard blend M-360-2. At the Havthorae lathes, a difference in the machining characteristics of the pipe was noted. The pipe made with 27-1/2 per cent M-387-0 tended to chip while being machined and had the appearance of being considerably more brittle than the pipe manufactured with 25 per oent M-360-2. Neither the destruction test pipe nor the sag cake tests shoved a significant difference in the hydro, flexure or crush strength level of the pipe between use of 27-1/2 per cent M-387-0 and 25 per cent M-360-2. The results are summarized in the following tables. jr , RESULTS8 (Cont'd) 'iV'.y- Table I Summary of Production and Inspection Results Special Tiber Son -- 27-1/2 per cent M-387-0 6" -- 150 Pipe No, of Sections Manufactured Scrap at Machine Rejects at Machine Average Forming Time * Min, Ho, of Sections Machined and Inspected Inspection Rejects Flexure Failures Hydro Failures Net Recovery Based on No, of Sections Manufactured Set Becovezy Based on Ho, of r Sections Machined and Inspected "Before1* Run 25% M-360-2 136 2 1,5* 0 1,15 Special Run 27-1/2* H-3S7-0 136 0 4 - 2,9* 1,15 "After" Run 251M-360-2 128 0 1 0.8* 1.09 134 3 * 2,2* 0 4 2,9* 132 4 = 2,9* 0 4 * 2,9* 127 2 * 1.6* 0 0 127 93.4* 124 91.2* 125 - 97.7* 94.8* 93.9* * 98 U* Table II Summary of Ultimate Strengths Special Fiber Run -- 27-1/2* M-387-0 6* - 150 Pipe Ho. of H^drotjT^^^pi V Average TSraing Load - psl Standard Deviation Average MR -- lbs/sq in. Standard Deflation Before" Run 25% M-360-2 12 844 70 5155 6o6 Special Run 22=1/2%. 27 831 78 4802 427 Ho. of Flexure Test Pipe Average Breaking Load - lbs Average MR - lbs/sq in. No0 of Crush Test Samples Average Breaking Load - lbs Standard Deviation Average MR - lbs/sq in. Standard Deviation 4 4460 5015 22 6846 357 6930 393 5 3900 4466 44 6922 632 6869 605 "After* Run 25* M-_360-2 11 800 65 4758 380 - 4 4410 4882 22 7364 595 6956 585 V' " Report Bo* TP-27 Page 3 RESULTSa (Coat'd) Table III Summary of Sag Cake Data Using Dry Stock Feed to the Machine Ho* of Sag Cakes Average Filter Time - See* Standard Deviation Average MR - psi Standard Deviation Average Density - lbs/cn ft Standard Deviation 25% K-160-2 15 61*6 3*6 4210 171 93.03 0.4S 27-1/2* M-387-0 15 62*1 3.0 4021 199 92.74 0.34 conclusions8 ^ Use of 27-1/2 -per cent of blend H-387-0 (30 per cent Australian Blue, 70 per A cent 6D20) resulted in an operable furnish and an ultimate strength level for 6-in* 150 pipe which compares with the strength.level of 6-in* 150 pipe manu factured with 25 per cent K-360-2. * An extended run of the special blend would be necessary for verification of these- preliminary results* * .