Table 2. FMC/EPC Plant Demographics (divided by scale of production) 表2 2005年、2007年中国FM（EPC）厂点生产规模的划分情况 Annual Production (t) 年产量（t）
2005 年 >4,000
2,000-4,000 1,000-2,000 <1,000
29.5 39.7 18
12.8
56 29 20 23
2007 年
Factories 厂点数 Factory Percentage 百分比（%） Factories 厂点数 Factory Percentage 百分比（%） 23 31 14 10
43.7 22.7 15.6 18
1975, the Shanghai Institute of Machinery Manufacturing Technology completed testing on using foam patterns with vacuum molding and successfully produced 10 metric tons of castings. In 1981, after many experiments, the Chang- chun Institute of Optics of Chinese Academy of Sciences built the first vacuum lost foam casting pilot production line. Before 1995, the output of FMC/EPC castings was low,
and only several thousand tons were produced nationwide. Since then, the FMC/EPC processes have grown exponen- tially, especially in the past five years. In 2007, China’s lost foam production exceeded the U.S. and became the largest in the world.
Although FMC production was low prior to 1995, it was the dominant form of lost foam casting in China. Tat year, the output of the FMC and EPC processes was almost identical. From 1999 to 2005, the EPC process was used more extensively. Since 2007, FMC production levels have gradually approached those of EPC. Both pro- cesses have grown rapidly from 2005 to 2009 (Table 1).
件。1975年上海市机械制造工艺研究所用泡沫塑料模结 合抽真空的消失模负压造型进行了试验，成功生产十吨 铸件。1978年中科院长春光机所在大量试验的基础上， 于1981年建成我国第一条负压实型铸造试验生产线。从 此中国的消失模铸造走上了快速健康良性发展的轨道。
2 我国消失模铸造的研究及生产现状 2.1 我国消失模铸造生产历史状况
1995年前，实型铸件/消失模铸件产量很少，全国 只有数千吨；经过十几年的发展，特别是近5年发展迅 速；从2005年开始成倍增长，到2007年实型铸件/消失 模铸件的产量超过美国成为世界第一。 1995年前，虽然实型铸件产量很少，但当时在我国 实型/消失模铸造行业中占主导地位；到1995年实型铸 件和消失模铸件产量几乎相当。随着我国汽车工业快速 发展和对汽车覆盖模具铸件的大量需求，实型铸件产量
The Chinese lost foam casting industry is broken down into two segments: full mold casting (FMC), where the sand mold contains binder, and expendable pattern casting (EPC), where no binder is used in the sand mold.
消消失模铸造（Lost Foam Casting）有“实型铸造”（FM-Full Mold Casting，砂型含粘结剂）和“干砂真空造型铸造”（EPC- Expandable Pattern Casting, 砂型无粘结剂）两种类型，而在中 国通常习惯把砂型含粘结剂的消失模铸造方法称为“实型铸造” ，把砂型无粘结剂的干砂真空造型铸造方法称为“消失模铸造”。
Spring 2012
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