论文部分内容阅读
一、前言在阀类元件中,凡是板式阀的阀体,都有几个直径、深度和座标位置不同的密封圈窝,用来放置密封圈,以保证阀体与控制板的连接处不泄漏。密封圈窝的加工深浅,直接影响密封圈的预压量及密封性能。因此,窝的深浅要有公差限制,其公差为0.2毫米。以前工人一般在平刮钻头上作记号,加工时用眼睛看记号,然后用卡尺测量,往往须反复数次,其精度要求也难达到。这样的操作方法,工人的眼睛很紧张,操作麻烦,工作
First, the preface In the valve components, all the plate valve body, there are several diameter, depth and coordinate position of the sealing ring socket, used to place the sealing ring, to ensure that the valve body and the control panel is not connected leakage. Seal nest processing depth, a direct impact on the seal preload and sealing performance. Therefore, the depth of the nest to have tolerance limits, the tolerance is 0.2 mm. Before the workers generally flat scraping bit for the mark, when processing with the eyes look mark, and then measured with a caliper, often repeated several times, its accuracy is difficult to achieve. This method of operation, the worker’s eyes are nervous, the operation is troublesome, work