铸钢哈夫大齿轮的铸造经验

• 作 者: 吴傅祥
• 出 处: 铸工
• 发表日期: 1954年01期
• 关键词: 大时 收缩率 自由收缩 收缩量 外堡 箭头方向 移迹 样方法 夫山 齿坯

齿轮直径在2公尺以上时,浇铸哈夫的比浇铸整个的还要困难些。整个的齿轮虽然铸造时内应力要大一些,但不易变形,浇出来仍然是一个圆的,经过退火处理后,内应力消除,便能得到一个完善的铸件。但当浇铸哈夫的齿轮时(如图1),铸件常会发生下列的弊病(参阅图2):

When the gear diameter is more than 2 meters, it is more difficult to cast the Hough than to cast the whole. Although the entire gear casting larger internal stress, but not easy to deformation, poured out is still a round, after annealing, the elimination of internal stress, can get a perfect castings. However, when casting Huff gear (Figure 1), castings often occur the following disadvantages (see Figure 2):