Smooth limit gauges, also known as shaft axis card board, card board, only the mouth card board, card rules. Smooth limit gauges can not indicate the magnitude of the shaft, only in accordance with the DUT with the gap, or whether the degree of light transmission through the DUT and so qualified to determine whether the measured length length measurement tool. Simple smooth limit gauges shaft structure, usually entity with precise sizes and shapes, such as a cone, cylinder, block flat, feet and threaded parts. There are commonly used gauge blocks, angle blocks, multi-faceted prism, sine, ruler, flat feet, flat, feeler, flat crystal and other regulations limit card. With caliper test piece usually pass only method (through the use of the card side and toe gauge control workpiece size so as not to exceed the tolerance band), coloring (coated with a thin layer of paint on the calipers work surface, use calipers EUREKA surface and measured surface, coloring the size and extent of the uneven distribution of the measured surface indicates the error), the optical gap method (the measurement surface of the measured surface in contact with the caliper, rear discharge light source or the use of natural light, based on transparent The color of light can be determined gap size, which represents the size of the measured size, shape or position error) and instruction sheet method (exact geometry of the comparative advantage of the caliper and measured geometry with dial indicator or micrometer and other instructions the geometry of the measured error). Examine the card which pass only the regulation referred to limit the use of calipers (eg gauge, smooth plug, threaded plug, threaded ring, etc.). Shaft pallets, calipers, smooth limit gauges are used to measure shaft cylindrical, rectangular, polygonal outer dimensions of the workpiece in the measurement, if the calipers can pass end piece, full length side not through the workpiece, It said workpiece qualified. Calipers, card board specifications: 1-500mm, special size can be customized according to customer requirements size processing. Calipers, pallets Application examples: caliper most widely used form shown in Figure 1. If the paper size axis is ￠ 80 mm, caliper maximum limit size: 80-0.04 = 79.96mm, the minimum size limit: 80-0.12 = 79.88 mm, the caliper of 79.96mm end is called through end; card regulations 79.88mm end is called the end-stop. In the measurement, if the calipers can pass end piece, full length side not through the workpiece, it said workpiece qualified; if the caliper pass through the workpiece end, full length side but also through the workpiece, said workpiece size is too small has become waste; if only end through the end and could not through the workpiece, then the workpiece size is too large, failed, must be reworked. I plant: threaded plug, threaded ring, smooth Cypriot ring, smooth ring gauge, calipers, sine, Mohs gauge, various test rods, cylindrical Square, square boxes, flat, V-shaped frame, granite slab, flat feet parallel to the regulation, rectangular device, square boxes and other non scalar gage. Mitsubishi imports of wire walking external processing Tel:. 18632765185 QQ: 1101491384 Website: http://www.hhjmlj.com/