Granite square box

Granite square box is a precision benchmark measuring tool made of natural stone materials.The following is a detailed introduction about it:

characteristic

High precision:After rigorous physical testing and selection,the granite material is finely crystallized and hard in texture.Its working surface adopts scraping or precision grinding technology,which can provide high-precision reference for measurement.

Strong stability:sourced from high-quality underground rock layers,with billions of years of natural aging,stable in shape,and not easily deformed by conventional temperature differences.

Excellent Material:The material is mostly Jinan blue,with a black luster,precise structure,uniform texture,high strength,high hardness,and is non-metallic material with no magnetic reaction or plastic deformation.

Good wear resistance:The high hardness ensures that even if the granite square box is bumped by heavy objects during use,at most a few stones can fall off,and the accuracy is well maintained.

Good corrosion resistance:It has the characteristics of non rusting,acid and alkali resistance,and can maintain stability under heavy loads and general temperatures,with low maintenance costs.

purpose

Measuring Flatness:It can be used to detect the flatness of components,workpieces,machine tool workbenches,guide rails,and precision work,providing accurate benchmarks for flatness measurement.

Detecting verticality:By cooperating with other measuring tools,the verticality of the workpiece can be accurately measured,ensuring the accuracy of the workpiece in the vertical direction.

Instrument calibration:plays an important role in the inspection and calibration of instruments and precision tools,ensuring the accuracy and reliability of these instruments and equipment.

Mechanical component inspection:In the process of mechanical manufacturing,it is used to inspect the dimensional accuracy and geometric tolerances of mechanical components to ensure that they meet the design requirements.

accuracy class

Classification criteria:The accuracy level is mainly classified based on indicators such as the flatness of the working face,the parallelism of the relative surfaces,and the perpendicularity between the working faces.It is generally divided into levels 00,0,etc.,with level 00 having higher accuracy than level 0.

Example of precision indicators:Taking common specifications as an example,for a 100×100×100mm granite square box,the flatness of the 00 level working face is 0.001mm,the parallelism of the relative face is 0.002mm,and the perpendicularity between working faces is 0.001mm;while for a 200×200×200mm granite square box,the flatness of the 00 level working face is 0.002mm,the parallelism of the relative face is 0.004mm,and the perpendicularity between working faces is 0.002mm.

Specification and dimensions:Common specifications include 100×100×100mm,150×150×150mm,200×200×200mm,300×300×300mm,400×400×400mm,500×500×500mm,600×600×600mm,etc.Customization can also be made according to customers'special needs.