1) pipe head necking down
管头缩口
1.
Mathematical simulation on the process of pipe head necking down;
管头缩口工艺过程的数学模拟
2) constricted end joint
缩口接头
3) tube-ending neck-in
管坯缩口
1.
An experimental research of the forming of tube-ending neck-in is discussed by using the technology of friction spinning.
探讨摩擦旋压方式下管坯缩口成形的工艺参数及其主要工艺参数对成形性能的影响。
4) pipe end shrink mouth
管端缩口
1.
Through study on pipe end shrink mouth technology of 300 MW,600 MW boiler heated surfaces made in Harbin Boiler Works as well as analysis of principle of pipe end shrink mouth and technology design, a new method of shrink mouth technology and parameters are proposed.
通过对哈尔滨锅炉厂３００ ＭＷ、６００ＭＷ锅炉设备等受热面管子管端缩口工艺的研究和对管端缩口基本原理、工艺设计原则的分析，提出了缩口工艺新方法及工艺参数。
5) the reductive pipe elbow
渐缩管弯头
1.
Graph auto-producing on the approximate extension of the reductive pipe elbow based on mathematics model;
基于数学模型的渐缩管弯头近似展开绘图实现
2.
One kind of sheet metal based on the extension mathematics model for the reductive pipe elbow in the automobile silencer shell is put forward in this article.
本文介绍了一种基于展开数学模型的汽车消声器渐缩管弯头钣金方法,由于该方法可以通过自动绘制展开图实现Nestcut钣金排样系统下的自动下料和数控切割,必将能极大地提高工程技术人员的工作效率,进而提高产品质量。
补充资料：管头
1.指管束别人的人。 2.指管理公产的人。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条