width of thread

This paper introduces the correct calculating method of width dimension of top edge, front and rear angles of two side edges and thread profile angle with front angle for lathe tool of trapezoid threads. There are reference values for practical production.

介绍梯形螺纹车刀顶刃宽度尺寸、两侧刃的前后角以及带有前角时牙型角的正确计算方法，对实际生产有参考价值。

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Through experiments, we know that the key factors causing thread pulling pollution are the number of air holes on the controlling value of asphalt filling machine, the width of sealing belt, the shape of over slot and the blowing time of air holes.

通过实验研究得出对拉丝污染起决定性作用的主要因素是沥青灌装控制阀座上的吹气孔数量、密封带宽度、越程槽的形状以及气孔通气吹扫的时间。

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Many experiments of weaving curtains were done based on radial bamboo strips'feature. Through comprehensive evaluation, the method of sewing or the lead thread mechanical twisting into a single strip curtains has very good application prospects to the radial bamboo strips' width over 5 mm.

根据径向竹篾的特点，进行了多种织帘方法的试验，通过综合评价认为：宽度在5mm以上的径向竹篾，采用缝拼法或铅丝机械绞织法织成单篾帘，具有良好的应用前景；

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