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BOEING EVERETT SECTION 34 11 16 <br /> NEW RAIL SPUR WELDING OF RAIL <br /> WORK ORDER 10-305 <br /> G. The following equipment shall be used lor ultrasonic testing and documented on a Test Report <br /> Fortn: <br /> 1. Ullrasonic, pulsed echo, instrumenl normally used for inspection of reils with calibrated <br /> decibel gain control of minimum 2db increments, operating in the range 1-5 MHz, with <br /> CRT screen and acale. Equipment shall be capeble of detecting a 3164•inch discontinuRy <br /> 8-7/2 inchea below top oi rail. <br /> 2. Calibrete�1 paper tape recording ettachments to record eccurately the CRT screen <br /> indicatir,n i when a noncomplying weld is located. <br /> 3. 2.2�MHz angle beam lransducers tf2 inch by 1 inch at 70 dagreea and 45 degrees. <br /> 4. Suitable high viscosity couplets of good wetting charaderistics. <br /> 5. Stendard IIW calibration blocks of rail steel for primary rererence response and to <br /> conslruct distance-amplitude cortection curve, end DSC Blocka of rail steel for calibration <br /> checks. <br /> 8. A "calibration rail", a piece 115RE rail, 18 inches long with a 3I64-inch diameter round <br /> bottom hole 6-1f2 inchea bolow top of rail and in which other 7/B-inch diameter ilat bottom <br /> hole petterns have been drilled es shown in Figure 02041-2, <br /> 7. Use an ulirasonic Test Report Form that records 20 inspected wetda per sheet. The fortn <br /> shall Include the localion oi lhe weld in treck, lhe results o( the ultrasonic inspection <br /> including eize of defects found in the head, web or base of rail, shepe identity and <br /> locetion oi all rellections, trace record, lhe reautts of the visual inspection, name o1 <br /> inspector,and other information noted on Reco;d of Field Weld. <br /> H. Welda found defective by radiogrephic, ullrasonic, magnelic paAicle, or visual inspection and <br /> rejected by Boeing Construction Manager shali be cut out and replaced. <br /> PART2 -PRODUCTS <br /> 2.1 RAIL FOR CONTINUOUS WELDED RAIL <br /> A. Rail for lhe Work shall be lumished by the Coniractor in accordance with lhe Section 34 11 13, <br /> Rail. <br /> 2 2 THERMITE WELDING MATERIALS <br /> A. Thermite type rail welds shall be termed utilizinp one of the lollowing brenda oi reil weldinp kils <br /> or en approved equel. <br /> 1 Thertnit Self PreHeat-as manufactured by Orgothermite Inc., Lakehursl, New�ersey <br /> 2 Boutel-as distributed by Du'Nel Steel Producls Company, Chicago, Illinois. <br /> 3 Railwel Cabrite Welding Procedure— Morrison hletalweld Process Cory., Canfield, Ohio, <br /> 44406 <br /> Permit Set 34 11 16- 7 <br /> September 23, 2011 <br />