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Inspection standard for cast iron platform
Release time:
2020-10-29
Level 0 and level 1 flat platform shall not be less than 25 points within the range of 25 ㎜ square on each side.
The level 2 flat platform shall not be less than 20 points within the range of 25mm square on each side.
The level 3 flat platform shall not be less than 12 points within the range of 25mm square on each side.Square within the range of not less than 12 points.
The working surface of the cast iron platform shall be free of rust, scratches, bumps and other appearance defects affecting the use.
The working surface shall be free of casting defects such as sand holes, pores, cracks, slag inclusion and shrinkage. All kinds of casting surface should be cleared of sand, and the surface is smooth, paint firm. The edges shall be blunt. On the working surface of cast iron platform with precision grade lower than "00", sand holes with diameter less than 15mm are allowed to be blocked with the same material, and its hardness shall be lower than that of surrounding materials. In the work surface of the site should not be more than four, the distance between them should not be less than 80mm.
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