2899 



24-4 FLAKE MANUFACTURE, DRYING, AND STORAGE . . 2920 



FLAKE CUTTING 2920 



Slope of grain in flakes 2920 



Surface smoothness of flakes 2920 



Length, width, and thickness of flakes 2921 



Selection of flaking machinery 2921 



Flake splitters 2923 



FLAKE DRYING 2927 



Rotary-drum dryers 2927 



One-pass rotary-drum dryers 2929 



Three-pass rotary-drum dryers 2929 



Dryer feed 2931 



Recirculation 2932 



Pollution control 2932 



Heating alternatives 2933 



SCREENING 2934 



STORAGE 2936 



24-5 RESIN SELECTION AND APPLICATION 2936 



PHENOL-FORMALDEHYDE RESOL AND NOVOLAC 



RESINS 2938 



Resol resins 2938 



Novolac resins 2938 



Powdered resins 2938 



Liquid resins 2939 



IMPROVED PHENOLIC LIQUID RESINS 2940 



Resorcinol-modifled liquid phenolic resin 2940 



Alloy of liquid phenol-formaldehyde resin and 



polyisocyanate 2941 



APPLICATION OF RESIN 2943 



Long-retention-time blenders 2945 



Short-retention-time blenders 2945 



24-6 MAT MOISTURE CONTENT, CONSTRUCTION, AND 



FORMATION 2948 



MAT MOISTURE CONTENT 2948 



SPECIES COMPOSITION 2948 



BOARD LAYERING 2949 



FLAKE ALIGNMENT 2950 



Mechanical alignment 2950 



Electrical alignment 2950 



FORMING MACHINES 2950 



24-7 PRESSING 2953 



