1, precision casting process using energy-saving process flow, reasonable organization of production. Such as the use of self-hardening resin sand or surface dry type instead of clay sand drying type, saving energy consumption of drying mold; Strict proportioning, determine the appropriate composition of precision castings, adopt an effective inoculation program, eliminate the white or hard spots on the castings in the casting state to cancel the graphitization annealing process; To promote the cast ductile iron, it is required that the elongation below 12% after breaking should be obtained in the cast state; The frequency wave harmonic vibration aging process is adopted as far as possible, and the stress reduction thermal aging process is removed.
2, save materials, and strive to reuse. Because the production of any material requires energy.
3, large-scale production of precision casting enterprises, that is, the output of each casting unit is more than 5000t. Because of the large output of the enterprise, the working time of the furnace is long, and the heating energy consumption of the furnace itself can be greatly reduced to the energy consumption of each ton of precision castings.
4, improve the management level, reduce the scrap rate. For example, a precision foundry with an annual output of 5000t, every 1% decline in the scrap rate is equal to the production of 50t precision castings, calculated according to 400kgee energy consumption per ton, a year can save 20t standard coal, that is, each ton of precision castings reduces the energy consumption of 4kgee.
