Cast iron square ruler

The cast iron square ruler is manufactured according to the standard, with material HT250. The working surface adopts scraping or grinding technology for measuring the straightness and flatness of the workpiece and equipment installation. The operating temperature is (20 ± 5 ℃).

Angle rulers and rulers are used for precision inspection, geometric accuracy measurement, component measurement, scraping and grinding process processing of machine tool guides and workbenches, and are the benchmarks for measurement.

A cast iron square ruler is a gauge with an accurate flat shape.

Cast iron square ruler is used to inspect the flatness of flat plates, long guide rails, etc. by coloring method and indicator table method, and is also commonly used to inspect the straightness of workpiece edges by light gap method. Flat rulers are generally made of cast iron, while rectangular rulers can also be made of bearing steel or granite.

Cast iron square ruler: manufactured according to standards, made of HT250 material, using scraping or grinding technology on the working surface, used for checking unevenness and straightness in machine tool inspection. The two working surfaces are matched with block gauges, micrometers, level gauges and other instruments for inspection. At different heights, the parallelism of the two guide rails and the level of the unconnected guide rails can be checked with a square ruler. It is a measuring tool for checking the perpendicularity of two components that cannot be checked with a square ruler alone. It is also suitable for equipment installation and inspection.

Featuring a vertical and parallel frame combination, suitable for mechanical and instrument inspection, as well as checking for non perpendicularity between machine tools It is an important tool used to check the non perpendicularity between various components inside machine tools.

Support the cast iron square ruler with equal height blocks at the standard support marks 2L/9 from both ends of the ruler and place it on the reference plane. Use an indicator or comparator with a scale of 0.001mm to measure the reading in the middle of the working face length; Then move the equal height block to the position of the large support distance (at both ends of the ruler), stabilize for 10 minutes, and read it with an indicator or comparator; The difference Y between two readings is the natural deflection of the ruler.