论文部分内容阅读
一生产经营情况台湾省1981年的各类铸件产量见表1。1981年的铸件产量比1980年减少6.1%。其中灰铸铁件减少1.5%、球墨铸铁件减少19.5%、可锻铸铁件减少20%、铸钢及合金钢件减少16.5%、铸铜及铜合金件减少了12.2%、铸铝及铝合金件减少15.2%。综观1981年的铸件生产,除灰铸铁件有微量减少外,其余下降幅度均较大。灰铸铁件因为工具机用铸
A production and management of various types of castings in Taiwan Province in 1981, the yield shown in Table 1. 1981 casting production decreased by 6.1% in 1980. Among them, the percentage of gray cast iron decreased by 1.5%, that of ductile iron decreased by 19.5%, that of malleable cast iron decreased by 20%, that of cast steel and alloy decreased by 16.5%, that of cast copper and copper alloy reduced by 12.2% and that of cast aluminum and aluminum alloy decreased by 15.2% %. Looking at the production of castings in 1981, with a slight decrease in gray cast iron, the remaining decline are larger. Gray cast iron because of the machine tool casting