How can we identify the advantages and disadvantages of the lean tube workbench? What other methods can we use for inspection?
1, The work surface should not have rust, scratches, bumps and other appearance defects that affect the use.
2, The work surface should not have sand holes, pores, cracks, slag inclusions and shrinkage and other casting defects. All kinds of casting surfaces should be clear sand, and the surface smooth, solid paint. Each edge should be dulled. In the flat work surface where the accuracy level is lower than "00" grade, sand holes with a diameter of less than 15mm are allowed to be blocked with the same material, and the hardness thereof should be lower than that of the surrounding material. There should be no more than four plugged areas on the work surface, and the distance between them should not be less than 80mm.
3. On the two opposite sides, screw holes or cylindrical holes for installation of handles, rings, etc. shall be provided. When designing the lifting position, consideration should be given to minimizing changes caused by lifting.
4. According to the user's requirements, after the threaded holes or grooves are set on the working surface of the plate, these areas should not be raised above the working surface.
5, Should use high-quality fine particles of gray cast iron or alloy cast iron.
6. The hardness of the working surface should be HB 170-220.
7. The scraping process shall be adopted for the working face, and the planing process may also be adopted for the “3” level flat work surface. The surface roughness of the planing work surface shall be less than 5um according to the arithmetic mean deviation of the profile.
8, Should undergo stability processing and demagnetization.
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