One (1) Hot Wall Furnace for stress relieving additive manufacturing builds.NB: Please pay attention to the attached evaluation criteria. Request for Quote (RFQ) due date extended to: 6/12/2020. Questions & Answes document attached.
Stress relief must be per the following in lieu of M695964:Stress relief must be performed before final machining and grinding to remove fabrication stresses. Stress relief must be at 1000 to 1050 Fahrenheit for 1 hour per inch of thickness (1 hour minimum). Furnace cool. Stress relief must be in a reducing or inert protective atmosphere.
Stress relief must be per the following in lieu of M695964: Stress relief must be performed before final machining and grinding to remove fabrication stresses. Stress relief must be at 1000 to 1050 Fahrenheit for 1 hour per inch of thickness (1 hour minimum). Furnace cool. Stress relief must be in a reducing or inert protective atmosphere.
Inspect foundations for signs of stress such as cracking or movement. All furnace tubes and all accessible convection tubes for alignment, evidence of corrosion, erosion, bulges, sagging, defective or deteriorated welds. Inspect boilers externally and internally for defects including bulges, blisters, cracks, wasted or eroded material, warping, general corrosion, grooving and pitting, and damaged insulation.
