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我厂自1977年以来使用半圆试块调节时间线,对于探测板厚为8～25mm 的中薄板焊缝,具有体积小、重量轻、加工方便,使用简单、调节精确等优点,现将半圆试块的尺寸和使用方法简介如下:半圆试块的尺寸和使用方法1.试块的尺寸试块的半径 R=33mm,厚度为15mm,在圆心处开一个2mm 宽的缺口,离圆心23mm、深16mm 处钻一个Φ2横孔见图1.试块材料可采用一般圆钢.
I plant since 1977, the use of semi-circular test block adjustment time line, for the detection of plate thickness 8 ~ 25mm in the thin-plate weld, with small size, light weight, easy processing, easy to use, accurate adjustment, etc. Now semi- The size of the block and the use of methods are as follows: The size and use of semicircular test block 1. The size of the test block The radius of the test block R = 33mm, a thickness of 15mm, open a 2mm wide at the center of the gap, 23mm from the center of the circle 16mm at a Φ2 horizontal hole drilling shown in Figure 1. The test block material can be used round bar.