To reduce heat loss and save cost

a combination decision model of reverb aluminum holding furnace linings in aluminum casting industry was established based on economic thickness method

and was resolved using simulated annealing. Meanwhile

a three-dimensional mathematical model of aluminum holding furnace linings was developed and integrated with user-defined heat load distribution regime model. The optimal combination was as follows: sidewallwith 80mmalumino-silicate fiber felts

232mmdiatomite brick and 116mmchamotte brick; top wall with 50 mm clay castables

110 mm alumino-silicate fiber felts and 200 mm refractory concrete; and bottomwallwith 232mmhigh-alumina brick

60mmclay castables and 68mmdiatomite brick. Lining temperature from high to low was successively bottom wall

side wall

and top wall. Lining temperature gradient in increasing order ofmagnitude was refractory layer and insulation layer. It was indicated that the results of combination optimization of aluminum holding furnace linings were valid and feasible

and its thermo-physical mechanism and cost characteristics were reasonably revealed.