焊缝质量是关系到锅炉压力容器安全的关键性因素。在实际生产中,必须对它们的尺寸进行测量和检验。焊缝及坡口测量卡尺是一种携带方便,具有一定精度、适用性较广的测量工具。 该卡尺由卡尺本体、滑尺、斜形尺、弹簧、弹簧罩壳和铆钉组成(图1)。滑尺和斜形尺分别由弹簧、弹簧罩 Weld quality is the key factor that affects the safety of boiler pressure vessel. In actual production, their dimensions must be measured and tested. Weld and groove measuring caliper is a portable, with a certain accuracy, wide applicability of the measuring tools. The caliper consists of a caliper body, slider, beveled ruler, spring, spring case and rivet (Figure 1). Slide and diagonal ruler by the spring, spring cover