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在机械产品中,铸件的重量约占50～80％,铸造生产的能耗约占机械工业总能耗的25～30％。可见铸造生产技术水平及铸件质量状况对机械工业经济效益的高低有着很大的影响。 我国铸造技术发展缓慢,专业化程度不高,工艺及其装备比较落后,产品质量差,废品率高,经济效益低;在管理上,至今没有一个统一的管理体制,科研、生产、供应长期以来的“割据”局面仍然原封不动。铸造生产技术已成为机械工业最薄弱
In the mechanical products, the weight of castings accounts for about 50 to 80%, and the energy consumption for casting production accounts for about 25 to 30% of the total energy consumption of the machinery industry. It can be seen that the level of casting production technology and the quality of castings have great influence on the economic benefits of the machinery industry. China’s casting technology has developed slowly, its degree of specialization is not high, its technology and equipment are lagging behind, product quality is poor, waste product rate is high, and economic efficiency is low. In terms of management, there has been no unified management system, and scientific research, production, and supply have long been The “secession” situation remains intact. Casting production technology has become the weakest in the machinery industry