The design theory of involute spline roller was given by analyzing the processes of cold rolling involute spline. It is incorrect to use the way of shaping method.
通过对渐开线花键冷轧加工机床及工艺的分析，建立了滚轧轮设计的数学模型，用范成法解决了采用成形法设计轮廓不准的缺陷，并得到了实际验证。
The utility model relates to a hot shrinkage pipe device which can evenly hot blow a plastic pipe to be deformed and quickly cold blow the deformed plastic pipe for shaping.
本实用新型涉及一种能将塑料管均匀吹热变形，并快速吹冷定形的热缩管装置。
Using up/down elevator carrying system, to extend the Shaping time, which make the cold Shaping forming result better.
采用上下梯级式输送，大大加长了制冷行程，使鞋子制冷定型效果更好。
Using up/down elevator carrying system, to extend the Shaping time, which make the cold Shaping forming result better.
采用上下梯级式输送，大大加长了制冷行程，使鞋子制冷定型效果更好。
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