Marble square ruler

Marble square ruler,also known as marble square ruler,is a precision marble measuring tool used to detect the straightness,parallelism,and perpendicularity of workpieces.The following is a detailed introduction about granite rulers:

characteristic

High precision:sourced from high-quality underground rock layers that have undergone billions of years of natural aging,with uniform organizational structure,extremely low coefficient of linear expansion,complete disappearance of internal stress,and resistance to deformation,it can maintain high precision for a long time.

Good rigidity,high hardness,and strong wear resistance:The main mineral components are pyroxene,plagioclase,a small amount of olivine,biotite,and trace magnetite.The texture is hard and the crystals are fine.Its hardness is 2-3 times higher than that of cast iron materials,and it is extremely wear-resistant,able to withstand large external forces and wear,and is not easily deformed or damaged.

Strong corrosion resistance:not afraid of acid or alkali corrosion,will not rust,does not need to be coated with oil,is not easy to stick to dust,easy to maintain and maintain,and has a long service life.

Good stability:Non magnetized,able to move smoothly during measurement,no sense of stagnation,not affected by moisture,good planar stability,and can maintain measurement accuracy even at room temperature.

purpose

In the field of mechanical processing,it is used to detect the verticality and straightness of machine tool workbenches,cutting tools,fixtures,etc.,to ensure the accuracy of processed parts.For example,in the machining of automobile engine cylinder blocks,the perpendicularity of each plane of the cylinder block can be detected to ensure the assembly accuracy of the engine.

Instrument manufacturing:As an ideal reference plane for precision instrument inspection,it is used to calibrate and detect the accuracy and perpendicularity of instruments,such as calibrating the perpendicularity of lens installation in optical instruments to ensure the accuracy of light propagation.

In terms of construction:In construction projects,the verticality of walls,columns,doors and windows can be detected to ensure the quality of the building.For example,when constructing high-rise buildings,check the verticality of the elevator shaft to ensure the normal operation of the elevator.

Measurement and testing work:In measurement and testing institutions,it is used as a standard measuring tool to calibrate the verticality and straightness of other measuring tools,ensuring the accuracy and consistency of measurements.