Year1
- 材质：
- HT250
- 型号：
- 齐全
- 硬度：
- HB200
Riveting welding platform (riveting welding flat plate) Purpose: Suitable for various workpieces It is used as a reference plane for welding, assembly, and inspection work, and for precision measurement. It is used as a benchmark for machine tool inspection and measurement to check the dimensional accuracy or shape deviation of parts. It is also an indispensable basic tool in mechanical manufacturing.
Riveted welded flat plate material and treatment: riveted welded flat plate, the welded flat plate material is high-strength cast iron H, the working surface hardness is HB, and it has been processed twice manually (artificial annealing and natural aging) The product has stable accuracy and good wear resistance.
Riveting welding platform (riveting welding flat plate) plate accuracy: It is carried out in accordance with the national standard metrology and verification regulations. It is divided into five levels:,,,,, and fine planing. The working surface accuracy is generally first level
&The maximum area of the entire riveted-welded flat plate can reach meters long and meters wide
&The maximum length of the entire riveted-welded flat plate can reach meters long
& Special users of riveted welding flat plates can be specially customized
Precautions for use and maintenance of riveting welding platforms (riveting welded flat plates)
. There should be no Rust, scratches, bumps and other cosmetic defects that affect use.
. There should be no casting defects such as sand holes, pores, cracks, slag inclusions and shrinkage porosity on the flat working surface. Each casting surface should be completely clean of molding sand, smooth and firmly painted, and all edges should be blunted.
. On the opposite sides of the plate, there should be settings for mounting handles or lifting positions, threaded holes or cylindrical holes. When setting up the lifting position, consideration should be given to minimizing deformation caused by lifting.
. The plate should be stabilized and demagnetized.
, riveting welding flat plate, the hardness of the working surface of the riveting welding platform should be HB or between.
, Main verification items, riveted and welded flat plates, welded flat plate material and surface hardness. B. Shape and position tolerances, including nominal dimensions and verticality tolerances. ,Exterior. D. Flatness. , contact spots. , plane fluctuation amount. , allowable deflection value of the working surface. H. Surface roughness.
, riveting welding platform (riveting welding flat plate) accuracy parameters.
Grade plates do not specify contact spot requirements. Grade riveted flat plates require that the number of contact spots should be no less than 1 point in any plane.
The number of contact spots required for grade rivet-welded flat plates should be no less than 1 point in any plane.
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