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Aluminum extrusion appears thickness difference how to solve
Author：Dongguan Tongtoo Aluminum Products Co., Ltd
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Time：2021-04-20 14:59:45
铝型材挤压出现厚度差怎么解决
厚度差是和挤压铝合金制品挤压方向平行的连续出现的壁厚差，容易产生在中空型材的厚度变化部分。铝型材挤压时由于金属流动不平衡，模具变形或定径带位置有相对偏离而造成。
厚度差的消除方法：
1、使金属流动平衡。
2、使定径带长度的变化平缓。
3、分流组合模具要调节上模和下模定径带出口位置。
4、芯头细长的模具，要抑制模具的弯曲量。
5、提高铸锭的加热温度或者降低挤压开始时的速度。
6、整个挤压过程中降低挤压速度。
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