Cast Iron Flat RuleGB/6318-85Standard manufacturing, materialHT250The working surface is processed using honing or grinding techniques, suitable for measuring the straightness and flatness of workpieces as well as for equipment installation, operating temperature (20±5℃）。

Cast iron level ruler applications: Vertical parallel framed assembly,Suitable for machinery and equipment inspection, as well as checking the non-perpendicularity between machine tools..An essential tool for checking the non-perpendicularity between internal parts of various machine tools.

The proper use of cast iron levels is crucial, as it directly affects their lifespan. The following are some points to note for using cast iron levels:

1Ensure the machine is turned off and prohibit measuring moving parts; otherwise, it may damage the parallel ruler and lead to accidents.

2Inspect the working surface of the parallel ruler and the inspected surface of the workpiece for cleanliness, check for any dings, burrs, or other factors that may affect measurement.

3Parallel squares cannot measure workpieces that are too cold or too hot. (Thermal expansion and contraction can destroy the accuracy of the parallel square.)

4Avoid pulling the parallel ruler back and forth across the measurement surface of the workpiece being measured during the measurement. After measuring one area, remove the cast iron ruler from the measurement surface of the workpiece before measuring another area.

5Check the accuracy of the parallel ruler before use.

In addition to usage, proper maintenance and care of cast iron levels is also crucial.

1After use or during extended periods of non-use, the parallel ruler should be hung. If hanging is not possible, try to place the cast iron ruler horizontally. Avoid placing heavy items on the parallel ruler to prevent bending and deformation.

2In cases where cast iron level is not in use for a long time, a layer of anti-rust oil should be applied to the surface of the parallel level.

3The cast iron level should be stored in a dry location to prevent rusting.

Cast Iron Level Rule   Standard Inspection Methods:

1Inspect the natural deflection of cast iron level bars.

2Inspect the parallelism of the upper and lower working surfaces of the cast iron level ruler.

3Inspect the contact area ratio of the cast iron level's contact points.

4Inspect the verticality of the side surface of the cast iron flat ruler relative to the working surface.

5Inspect the straightness of the cast iron level's working surface.