wedge-shaped

The structure and principle of two new types of cutting tools(bevel wedge type and eccentric type)for boring O-ring grooves have been introduced in this paper.

本文介绍了斜楔式和偏心式两种新型内孔挖槽刀具的结构和原理。

The analysis and control of prism-angle error on seating faces of wedge gate valve;

楔式闸阀密封面棱角误差的分析及其控制

Replaceable packing with pressure inside screw nonrising stem type wedge gate valve;

暗杆楔式闸阀阀杆密封结构改进

Aiming at preventing automatic firing accident of sliding wedge breechblock of ground gun, on the basis of the dint analysis to the percussion mechanism, the disquisition advances and demonstrates the conclusion that seriously abrasion of percussion mechanism is the main cause of automatic firing.

以如何预防楔式炮闩地面火炮自动击发事故为目的,从击发机受力分析入手,提出并论证了击发机严重磨损是造成自动击发主要原因的论点;通过计算与实验求出了部分火炮炮闩安全极限磨损角;制定了预防自动击发事故的应对措施。