铸造工业过去主要是依靠造型、清理等工序的机械化来作为降低成本的主要手段。浇注实收率固然重要,却未给予很高的重视。这是因为净金属的成本在整个成本中不算是主要项目,除非在重熔时出现大量的合金损耗。但是现在的能源、人力、物料的成本已经改变了这个关系,浇注实收率变得越来越重要。 In the past, the foundry industry relied mainly on the mechanization of molding and cleaning processes as the primary means of reducing costs. Casting yield is important, but did not give high priority. This is because the net cost of the metal is not a major part of the total cost unless a significant amount of alloying loss occurs during remelting. However, the current cost of energy, manpower and materials has changed this relationship, and pouring yield has become increasingly important.