Affected by national policies, now manyDongguan Precision CastingThe industrial structure of the factory is shifting towards energy saving and environmental protection. So what are the precautions for energy saving production in precision casting? The following summarizes a total of six points:

1. Use optimized design and optimized technology to improve the production rate of precision castings. Under the premise of ensuring the quality of precision castings, changing the gating system and using heat-generating risers can generally increase the export rate. If the export rate can be increased from 60% to 70%, the energy consumption can be reduced by 14.3%.

2. Adopt high compactness molding machine and modern core-making technology to reduce the quality of castings and reduce the machining allowance as much as possible. Practice has proved that high-pressure modeling can achieveRobot stainless steel accessoriesThe casting quality is 3%-5% lighter than manual molding and ordinary machine molding, and the machining allowance can be maintained at 2-3mm. The weight reduction not only saves energy in the precision casting workshop, but also reduces the energy consumption of subsequent processing.

3. Adopt energy-saving technological process and rationally organize production. For example, use self-hardening resin sand or surface dry type instead of clay sand drying type to save the energy consumption of drying the mold; strict ingredients, determine the appropriate composition of precision castings, take effective incubation plans, and eliminate castings in the as-cast state. To eliminate the graphitization annealing process; promote as-cast ductile iron, and require that the elongation after fracture is below 12% should be obtained in the as-cast state; try to use the frequency harmonic vibration aging process to remove stress reduction Thermal aging process.

4. Save materials and work hard to reuse. Because the production of any material requires energy.

5. Large-scale production of precision casting enterprises, that is, the output of each casting unit is above 5000t. Because of the large output of the enterprise, the working hours of the furnace are long, and the heating energy consumption of the furnace itself can be greatly reduced by spreading the energy consumption per ton of precision castings.

6. Improve the management level and reduce the rejection rate. For example, an annual output of 5000tDongguan Precision CastingAt the factory, every 1% drop in the scrap rate is equivalent to an extra 50 tons of precision castings. Calculated at 400 kgee per ton of energy consumption, 20 tons of standard coal can be saved a year, which means a reduction of 4 kgee of energy consumption per ton of precision castings.