Table of ContentsHeat Treatment of the Compressed MaterialQuartz-Tube FurnaceGran-Annular Electric FurnaceElectrical Resistance Furnace (Resistance of Charge)ForgingTemperature Measurement The mold used in producing the raw briquet is shown in Fig. 15. This consists of two halves of hardened tool steel, held together by strong bolts. Into each half is milled a polished V-shaped groove, so that … Continue reading Compressing Sample Powder to Briquet