| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a counter weight.SOLUTION: A counter weight of a machine for adjusting a barycenter includes plural layers constituted of an upper layer, a bottom layer and an intermediate layer which is provide between the upper layer and the bottom layer. The upper layer includes a mixture of iron ore, binding material and metallic shots the weight percent of which is within about 38% to 42% of the whole weight percent of the counter weight. The intermediate layer includes a mixture of metallic shots, metallic scrap, iron ore and binding material the weight percent of which is within about 16% to 24% of the whole weight percent of the counter weight. The bottom layer includes a mixture of iron ore, binding material and metallic shots the weight percent of which is within about 38% to 42% of the whole weight percent of the counter weight.</p> |
