Marble square ruler

The marble square ruler has a vertical and parallel frame combination for inspecting right angles,suitable for mechanical and instrument inspection,as well as inspection of non verticality between machine tools.The marble ruler is made of marble,which is a recrystallized limestone mainly composed of CaCO3.Manufacturing standard:manufactured according to GB6092-85 standard.The main mineral components of marble used in the marble square are abscission stone,plagioclase,small amounts of olivine,biotite,and trace amounts of magnetite.It has a black color and structural code.After billions of years of aging,the texture is uniform,stable,and strong,and can be maintained under heavy loads.

The marble square is a vertical and parallel combination of frames,suitable for mechanical and instrument inspection,as well as inspection of non verticality between machine tools.It is an important tool used to check the non verticality between various internal components of machine tools.

The characteristics and advantages of marble rulers:

1.Granite undergoes long-term aging,internal stress disappears,material is stable,and will not deform;

2.Will not rust due to moisture,easy to use and maintain;

3.Acid resistant,alkali resistant,and anti magnetic;

4.Dense organizational structure,smooth surface,and low roughness values;

5.The coefficient of linear expansion is small and less affected by temperature.

Daily maintenance and upkeep of marble rulers:

1.When marble rulers are not in use for a long time,they should be wiped with lubricating oil.If there is no lubricating oil,edible oil can be used instead.When using them again,wipe them dry with a soft cloth.When the surface is dirty,it is advisable to clean the stains with some lighter corrosive agents such as lemon juice or vinegar.Do not use soap or soda powder or other materials that may damage the essence of marble to wipe.

2.Although marble rulers do not deform and affect accuracy due to the impact or impact of hard objects,when a hard object hits its working surface,the marble ruler will drop stones and create pits.If there are too many pits on the working surface,it will affect the accuracy of the marble ruler.Therefore,when measuring workpieces or using them,it is important to handle them gently to avoid too many pits,which will affect their use and aesthetics.