Treasure reduction, reapplication, re-repetition and precision casting in smelting consumption should lose sufficient attention. Cupola intermittent heat introduced into the drying room for the paint after the casting stop drying, to waste power. A small amount of steel slag can not be used as a good way to reduce the emission of purifying substance. Sufficient use of intermittent furnace heat in smelting consumption process can reduce power consumption. According to my fellow germans, dross is something misplaced in the middle. With the rapid stagnation of the domestic economy, the scope has been expanding, international power, resources, ecological conditions for the economic growth of the constraints accumulated over time, the stagnation of the smelting industry is facing a series of serious challenges. If also according to come over intensive type, high increase, at the cost of sacrifice resources and conditions to ascend the way to determine is not go. The country has been the first country of casting consumption for six years.

   The main way to increase energy consumption is to adopt the stagnation form of repetitive economy and construct the smelting industry with resource waste and hostile conditions. However, from its smelting enterprise dynamic constraints faced by strengthening smelting, increase in the number of stress conditions of the insurance, domestic industry to deepen cooperation and knowledge property rights cover stronger trends, domestic smelting from the vast country and rejuvenating the country, 20% to the increase of energy consumption is five years, the purifying property to narrow down 10%, only depends on the renovation and advances of personnel of high quality, by establishing rapport building concept, by the stagnation of the repetitive economy can expect to adopt economic stagnation of form, build resource waste, hostile to the condition of smelting business is higher energy consumption of a main road. Precision casting according to the current international price of new sand and sand after the recycling of profits to stop comparison, the recycling profit is only one third of the new sand. It is reported that the profit of dumping one ton of waste sand is higher than that of purchasing new sand, and the target of recycled sand is no less than that of new sand.