1. Save raw materials and reuse them diligently. Because the production of all materials must consume energy.
2. The industrialized production of Precision Casting Co., Ltd., that is, the total output of each casting module is more than 5000t. Due to the large production volume of the company, the operation time of the melting furnace is long, and the heating energy consumption of the furnace itself can be greatly reduced to the energy consumption of one ton of precision castings.
3. Improve management ability and reduce unqualified rate. For example, in a precision foundry with an annual output of 5000t, every 1% reduction in the failure rate is equivalent to producing 50t more precision castings. Calculated based on the energy consumption of 400kgee per ton, 20t standard coal can be saved a year, that is, the reduction of one ton of precision castings 4kgee energy consumption.
4. Select reliability design and improve processing technology to improve the honorable yield of precision casting processing technology. Under the condition of ensuring the quality of precision castings, changing the pouring system software and applying hot thermal insulation gates can usually improve the export rate. If the export rate can be increased from 60% to 70%, the energy consumption can be reduced by 14.3%. .
5. Select high-compactness casting molding machine and its contemporary core-making technology to minimize the quality of castings and reduce the remaining amount of processing. Practical experience has proved that the high-pressure molding design can reduce the casting quality by 3%-5% compared with the hand-made molding design and the general equipment molding design, and the remaining amount of processing can also be maintained at 2-3mm. Reducing the net weight not only makes the precision casting production workshop environmentally friendly and energy-saving, but also reduces the energy consumption of subsequent production.
6. Select the production process of energy saving and environmental protection, and effectively organize production. For example: use no-bake resin sand casting or surface semi-dry type to replace the clay sand drying type to save the energy consumption of drying the casting mold; strict seasoning, clarify the suitable components of precision castings, and adopt corresponding creative plans. In sol precision casting, the gray or hard spots on the casting are removed to cancel the graphitization annealing process; as-cast gray cast iron is marketed and promoted, it is stipulated that the elongation after fracture is less than 12% should be obtained in the as-cast state; Frequency wave harmonic current vibration aging processing technology, remove the internal stress reduction thermal aging processing technology.