Cast iron inspection bending plate

Cast iron inspection bending plate is used for testing the vertical surface of products and belongs to the category of square rulers. The cast iron bending plate is manufactured according to standards, and the material is HT200-HT300; The manufacturing method of cast iron bent plates mostly adopts the casting process in casting; With the progress, casting molds have entered large-scale factory production, and previous technologies cannot meet production requirements. The application and development 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 for cast iron requires a SiO2 content of over 90%, while larger cast steel parts require a high SiO2 content; High fire resistance and thermal stability; Appropriate particle shape and composition; Not easily wetted by liquid metal. There are generally three shapes of particle shaped casting sand.

Circular sand: particles are circular or nearly circular, with a smooth surface and no protruding 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 generally represented by the angular coefficient (actual specific surface area of sand/theoretical specific surface area of sand).

Precautions for using cast iron inspection bending plates: Do not use and store bending plates in damp, corrosive, high or low temperature environments; When using, the bending plate should be installed and debugged, and then the working surface of the bending plate should be wiped clean. After confirming that there are no problems, the bending plate can be used.

The inspection bending plate has the characteristics of good flatness and flatness. The working surface of the inspection bending plate adopts scraping and grinding technology, which is used to inspect the 90 ° angle of the workpiece. When repairing the equipment, the mutual perpendicularity of the relevant surfaces of the components is inspected. The inspection bending plate is suitable for mechanical and instrument inspection and checking the non perpendicularity between machine tools.

Do not use and store inspection bending plates in damp, corrosive, high and low temperature environments. Inspection bending plates are generally packaged in two forms: iron plate packaging and wooden packaging. This will provide protection for the inspection bending plates, including good measures for shock resistance, rust prevention, and rough handling, to ensure that they are delivered to the site.