Bechtel Nevada, Mail Stop NLV 018, Post Office Box 98521, Las Vegas, NV 89193-8521

44 -- FURNACES TO PROCESS TUNGSTEN HEAVY ALLOY MATERIAL SOL DJ-00-14 DUE 060900 POC Dennis J. Jeffrey (702) 295-2192 or Ray Sunday (702) 295-4750 E-MAIL: Click here to contact the contracting officer via, jeffredj@nv.doe.gov. Bechtel Nevada is seeking information concerning commercial vendors capable of designing and manufacturing three (3) types of furnaces to be used for processing a tungsten heavy alloy material. The three furnace applications are preheat, annealing, and hydrogen sintering. Details specific to the three furnaces are as follows: TUNGSTEN MATERIAL -- The material to be processed in these furnaces is a tungsten heavy alloy with the following nominal properties: Density: 1208 lb/cf. Specific Heat: 0.0321 btu/lb-F. Thermal Conductivity: 94 btu/hr-ft-F. PREHEAT FURNACE -- The purpose of this furnace will be to preheat parts prior to a rolling operation. The furnace shall provide a continuous feed to an existing rolling mill conveyor. Operating Temperature: 1000C. Part Sizes: 0.750"x28"x22"; 0.750"x28"x26"; 0.640"x28"x26"; 0.640"x28"x30"; 0.490"x28"x34"; 0.490"x28"x40"; 0.330"x28"x50"; 0.330"x28"x59". Atmosphere: air. Throughput rate: one part every four minutes. ANNEALING FURNACE -- The purpose of this furnace will be to anneal parts in preparation for further rolling. The annealing furnace will be continuous feed with a cooling chamber for reducing the part temperature to ambient. Throughput capabilities may be achieved through the use of a single or multiple furnaces. The choice of single or multiple furnaces should be based on the most cost effective approach. Operating Temperature: 1200C. Part Sizes: 0.640"x28"x26"; 0.640"x28"x30"; 0.490"x28"x34"; 0.490"x28"x40"; 0.330"x28"x50"; 0.330"x28"x59"; 0.250"x28"x66"; 0.250"x28"x78". Atmosphere: nitrogen. Steady State Throughput rate: 115 parts/24 hours. Soak Time: 5 hours. HYDROGEN SINTERING FURNACE -- The purpose for this furnace will be to sinter parts under a pure hydrogen atmosphere. The atmosphere will be 80% wet hydrogen (21C dew point) and 20% dry hydrogen. The tungsten heavy alloy parts will travel through the furnace on a molybdenum boat/carrier to be defined by the vendor. Operating Temperature: 1500C. Part sizes: 0.250"x28"x66"; 0.250"x28"x78". Atmosphere: hydrogen. Steady State Throughput Rate: 12 parts/24 hours. Soak time: 2 hours. The purpose of this request is to obtain information and identify potential subcontractors with experience in the design and manufacture of high temperature furnaces. Responses to this solicitation should include a description of the furnace(s), approximate envelope dimensions, rough order of magnitude cost estimates, brochures and/or other information concerning similar furnaces, and a statement of qualifications and prior experience. A response may concern only one type of furnace, any combination of two types of furnaces, or all three types of furnaces. One or more Request for Proposals are expected to be issued in the future for these requirements. Posted 05/24/00 (W-SN458415). (0145)

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