Document 2j5pV0pKkOg0BGrMmKNddNrR6

Heating Ventilating Air Conditioning Guide 1938 Table 3. Drying Time and Conditions for Representative Materials3 Material Temperature FDeg Per Cent Relative Humiditt DaTING Time 140-180 200 140 300 140 150-190 120 325 350 to 90 1100 150 165 180 110-150 150 95-100 170-210 150-200 160-180 400 Max Cores, Oil sand for molding.34"--1 in. thick 300 Black sand with goulic binder 3 in. thick 8 in. thick 480 480 16 in. thick 700 Cores, Crank case (in continuous over 525-600 Cores, Radiator (in continuous ovens] 275-450 150 180 70 to 20 6 Hrs 2.5 Hrs 4-6 Hrs 15 Min 18 Hrs 40 Min 12 Min 24 Hrs, 108 Min 4.5 Hrs 2 Hrs 5 Hrs 24 Hrs 10 Hrs 4--6 Hrs 24 Hrs 2 Hrs 30 Min 2.5 Hrs 4.5 Hrs 10 Hrs 2-3 Hrs 1.5 Hrs 2 Hrs 225 290-425 225 2 Hrs + Air Dry 1 Hr 3 Hrs 200 90-95 450 225-300 250 150-180 85-110 \ 140 110 110 70l90 70-90 130 jGut............................................................ Gypsum board % in. thick.................. \ Start Wet Finish 150 350 350-190 180-200 150-190 120 140-180 90 70-90 40-50 1 Hr 18-36 Hrs 1 Hr 30-350 Min 1.5 Hrs 20-30 Min 2-6 6-9 Days 2 Days ^ 4 Hrs 60 Min 8-16 Hrs 1 Hr 2 Hrs 2-4 Hrs 4-6 Days See references at end of chapter. 6S6 Chapter 35. Drying Systems Table 3. Drying Time and Conditions for Representative Materials3--Con. Material Temperature Deo F Per Cent Relative Humidnr DaTING Time 120-180 70-300 300 Japan cash register................................................. 300-450 200 Knitted fabrics............................................................. 140-180 Leather mulling. ......................................................... 78-95 90 80 Linoleum varnish......................................... 1............... 110-145 250-270 Lithographing on tin Japan.......................................... 350 Lumber green hardwood........................................... 100-180 Lumber green soft wood....................................... 160-220 90-110 140-180 350 Milk and other liquid foods spray dried................... 135-300 Millboard sheets...... 95 Moulds green sand C.I. flasks (onej 8 in. thick 600 surface only exposed). ................ \ 13 in. thick 700 Motors, field coils........................................................ 180 Motors, stators............................................. 250 Noodles............. ...... Nuts........................................................... 90-95 75-140 Oil cloth................................. Paint, wood wheels 150 150 Paint, on sheet metaL............................... 350-140 Paper, machine dried............................... 180 Paper, air dried.................. 90-200 Paper wall, ground coat. 140 Paper wall, varnished.......................... 140-160 Paper cardboard, spirit varnish.............................. Peaches. ................ ... 150 135 Pears.................................. 140 Peas.................................. 150 Potatoes sliced.. .............. 85 Potatoes steamed.;......... 170 Prunes. ............... Rags......................................... 140 180 Ramie fiber. ........ 140 Rice......... ....................... 150 Rock wool insulation...... Rubber................... 300 85-90 Rubber reclaimed.... Rugs........................ Salt................. 140-200 190 350 Sand loose 1 in', deep 300 Sausage casings........... 110 Shade cloth. _ ..... Shirts. .......... Soap. _ ............. Starch............ 240 120 100-125 180-200 Stock feed mixed.... 180-220 Storage battery elates 100-110 Sugar. ........... 250 150-200 1.5-2 Hrs 1.5 Hrs 30 Min 85 70 10-30 4 Days 2-3 Days 6-10 Hrs 18-25 Min 3-180 Days 2-14 Days 7.5-8 Hrs 15 Min Instantaneous 10 Hrs 6 Hr 13 Hrs 6 Hrs 6.5 Hrs 24 Hrs 35 8-24 Hrs 22-30 2.5 Hrs 45 1-2 Min 26 Hrs 24 Hrs 6 Hrs 4 Hrs 6.5 Hrs 10 Hrs 8 Hrs,. 6-12 Hrs 1-2 Hrs 4-8 Hrs Rotary Drier 90 for Low for 1-2 Hrs 20 Min 12-72 Hrs 1-4 Hrs 20-30 Min 24 Hrs 6 Hrs 20-30 Min See references at end of chapter. 657