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介绍了砖瓦生产企业多节渐缩圆锥管90°弯头工程图目前“公认”的作图方法,分析了造成该作图方法错误的原因,详细论述了多节渐缩圆锥管90°弯头工程图的正确画法及其展开料的设计。
This paper introduces the current drawing method of 90 ° elbow of 90 ° taper cone for brick and tile manufacturer, and analyzes the reason of the error of this drawing method. ° elbow drawing the correct painting method and the design of the material.