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Fig. 3a: Percentage of electrical energy consumption of the in- dividual components of a single standard cell. The energy consump- tion of the conventional spraying process is often underestimated because of the com- pressed air.


图3a:一个标准单 元中各周边设备电能 消耗百分比。由于使 用压缩空气,常见的 喷涂过程能耗经常被 低估。


Fig. 3b: Average actual energy consumed by different parts from various foundries. These values generally refer to a specific part and can be used as a benchmark for improving energy consumption.


The VDMA standard cycle follows precise specifica-


tions, providing a reliable basis for making it easy to assess the power consumption and, consequently, the energy efficiency of various diecasting machines (Fig. 2). A VDMA assessment report not only includes the technical properties of a machine but also the energy consumption of a diecasting machine per standard cycle. This “Energy Certificate” provides additional assurance for making any decisions regarding investments.


图3b:各铸造厂不同工部的平均实际能耗值。这些值通常 代表了某个具体的工部,而且可以用作改善能源消耗的参 照基准。


产的不同压铸机进行比较(图1)。


VDMA标准循环遵守严格的规范,为易于评价能 耗,进而评价不同压铸机的能效提供可靠依据(例子 见图2)。德国机械设备制造商联合会VDMA的评估 报告不仅包括一台压铸机的技术性能,还包括该压铸 机每个标准循环的能耗。因此,这一“能效证书”能 为任何投资决定提供更多的保障。


Fig. 4: Example of an energy measure- ment report with real measured values for producing a top cover of an oilpan. The conversion factors are 0.111 kWhelec/Nm3 for compressed air and 0.015 kWhelec/ kWhth for the thermal energy used for cooling.


图4:生产一个油 盘顶盖实测数值的 能量测量报告。压 缩空气的转换系数 为0.111 kWhelec/ Nm3,冷却所需 热能的转换系数为 0.015 kWhelec/ kWhth.


June 2015 FOUNDRY-PLANET.COM | MODERN CASTING | CHINA FOUNDRY ASSOCIATION | 49


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