- 材质:
- HT250
- 型号:
- 齐全
- 硬度:
- HB200
The material is high-strength cast iron and the working surface hardness is B. After two treatments (artificial annealing and vibration aging), the product has stable accuracy and good wear resistance.
Surface quality of the flat plate
Specifications: (Special specifications can be produced according to the buyer's drawings or produced and processed as agreed upon by both parties)
Inspection procedures: There should be no rust, scratches, bumps or other effects on the working surface. Cosmetic defects of use. There should be no casting defects such as sand holes, pores, cracks, slag inclusions and shrinkage porosity on the working surface. All casting surfaces should be clean of molding sand and should be smooth and firmly painted. All edges should be blunted. On the working surface of the cast iron platform with an accuracy level lower than level R, sand holes smaller than the diameter are allowed to be plugged with the same material, and their hardness should be lower than the hardness of the surrounding materials. There should be no more than four blocked parts on the working surface, and the distance between them should be no less than 1.