OCR Text |
Show Table 1. Temperatures of Industrial Processes (3) Approximate temperature Material Operation range K of Aluminium alloy Ageing 395-510 250-460 Aluminium alloy Annealing 505-685 450-775 Aluminium alloy Forging 670-755 750-900 Aluminium alloy Heat-treating 425-810 310-1000 Aluminium Melting 920-1030 1200-1400 Aluminium alloy Die-casting 950-1030 1250-1400 Antimony Melting point 903 1166 Asphalt Melting 450-505 350-450 Babbitt Melting 590-700 600-800 Brass Annealing 590-755 600-900 Brass Extruding 1030-1060 1400-1450 Brass Forging 920-1030 1200-1400 Brass, yellow Melting 1200 1705 Brass, red Melting 1270 1830 Bread Baking 420- 530 300-500 Brick Burning 1255-1700 1800-2600 Brick, refractory Burning 1645-1920 2500-3000 Bronze, 5 % aluminium Melting 1330 1940 Bronze, manganese Melting 1170 1645 Bronze, phosphor Melting 1320 1920 Bronze, Tobin Melting 1160 1625 Cadmium Melting point 595 610 Cake (food) Baking 420-450 300-350 Calcium Melting point 1123 1562 Calender rolls Heating 420 300 Candy Cooking 380-420 225-300 Cast iron Annealing 1145-1200 1600-1700 Cast iron Malleablizing 1170-1255 1650-1800 Cast iron Vitreous enamelling 920-975 1200-1300 Cement Kiln firing 1810-1920 2800-3000 China Glazing 1090-1310 1500-1900 Clay, refractory Burning 1480-1700 2200-2600 Cobalt Melting point 1763 2714 Coffee Roasting 590-700 600-800 Coke By-product oven 1270-1770 1830-2730 Cookies Baking 460-505 375-450 Copper Annealing 700-920 800-1200 Copper Refining 1420-1700 2100-2600 Copper Melting 1420-1530 2100-2300 Copper Smelting 1420-1700 2100-2600 Cores, sand Baking 395-560 250-550 Cupronickel, 15 % Melting 1450 2150 Cupronickel, 30 % Melting 1500 2240 Electrotype Melting 665 740 Enamel Baking 395-505 250-450 316 |