The industrial process of casting bent plates

Cast iron bending plate is used for detecting the vertical surface of products and belongs to the category of square rulers. The working surface of cast iron bending plate adopts scraping and grinding technology, which is used to inspect the 90 degree angle of the workpiece, check the mutual perpendicularity of the relevant appearance of the parts during maintenance and equipment deployment, and is also commonly used for marking by fitters, inspection of parts, and clamping in machine processing. Cast iron bent plates can be used to check the perpendicularity of workpieces on flat plates, and are practical for machine and instrument inspection and checking non perpendicularity between machine tools. They are widely used in industrial measurement.

Cast iron bent plates should not be used or stored in humid, corrosive, excessively high or low temperature environments. Before storage, apply rust proof oil to the surface of the object to prevent it from rusting due to unfortunate use in the future. Before use, it is necessary to install and debug cast iron bending plates; Then wipe the surface of the cast iron bent plate clean, and use the bent plate in a confirmed environment without any problems.

The manufacturing essentials of iron bending plates mostly adopt the fine casting process in casting. With the large-scale production of molds entering the factory, past skills cannot meet production requirements. The application and growth of resin sand molding core making technology have put forward high requirements for the quality of casting sand. Casting sand should meet the following requirements: high purity and cleanliness. Taking silicon sand as an example, sand used for cast iron requires a SiO2 content of over 90%, while larger cast steel parts require a SiO2 content of over ; High fire resistance and thermal stability; Appropriate particle shape and composition; Not easily wetted by liquid metal. There are usually three types of casting sand with the same particle shape. Round sand: particles are round or close to round, with a smooth appearance and no prominent edges or corners; Polyangular sand: particles are polygonal and mostly obtuse angles; Sharp edged sand, with particles forming sharp angles and mostly sharp angles. The particle shape of casting sand is usually expressed by the angular coefficient (actual specific surface area of sand/theoretical specific surface area of sand).