分析框式锥底搅拌槽的出口严重堵料的现象，找出其原因，提出改造方案，并获得满意的效果。
Analyzes serious plugging phenomena at outlet of frame type conical agitation tank, seeks out reasons, puts forward modification cases to obtain satisfactory result.
从锥底渐开线花键的特征着手，分析了滚刀设计的特点，给出了锥底渐开线花键滚刀设计的主要步骤。
The article starts from the features of the tapered involute spline analyses the characters of hob design, expounds the main steps in the tapered involute spline hob design.
针对镇海炼化公司化肥厂渣油气化炉锥底法兰严重烧损的现状，提出锥底法兰的更换方案，实践证明有效地满足使用要求。
Aimed at the severe damage of the gasifier taper-bottom flange in Zhenhai fertilizer plant, a repair method is presented in this article. It is proved by the application that the method is practical.
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