90°弯头展开图的计算方法研究

Study on the Calculating Method of Expanding Map for the 90°Elblow

讨论了90°弯头展开图的计算方法,给出了展开图的计算公式,为其精确展开提供了理论依据,避免了繁琐的投影平行线法的作图步骤,为工程技术人员提供了一种可借鉴、有价值的展开图计算方法,有利于提高管道施工质量,缩短施工周期。

In this paper, the calculating method of expanding map for the 90°elblow is discussed, the calculating formula is presented, and the theoretics base of expanding map is provided to avoid avoiding the fussy process of projeetioning parallel. A reference and worth method of expanding map is offered for the engineering and technical personnel. The construction quality is advanced and the construction cycle coulded be shortened.