cast iron assembly plate

Assembly plate are usually used to fit and debug the equipment.there are T-slot on the surface plate to fit the workpiece. Additionally, we can machine the round hole U-shaped, slot holes or other your desire on the surface plate.
The raw material of the cast iron assembly plate is the high -strength cast iron HT200-300 ，whose surface hardness is of HB170-240.After the two manual handing such as 600℃ to 700℃ artificial annealing as well as 2 to 3 years of natural aging, the T-slot has plate perfectly resists abrasion and has stable precision.
Technical requirements of assembly Plate:
1.The working surface, when inspected visually, shall be free from blowholes, sand holes, cracks, slag inclusions scratches, porous patches and other visual flaws.
2.The working surface shall be clean and uniform and the other sides shall be painted well.
3,The raw material of Cast Iron Surface Plate shall be the close-grained cast iron whose hardness is of HB 170~220.
4, the surface plate are usually adopted the scraping technology.
5,deviation from flatness of the working surface shall not exceed the permitted deviations specified in Table2.