Material: cast iron plate with HT200-300 casting, material ingredients when the raw material content plus ingredients as follows (%): carbon content: 3.1-3.4, manganese: 0.6-0.9, silicon: 1.5-2.0, sulfur <0.12, 0.3. Hardness> 180, secondary tempering treatment.

1. Inspection platform: Mainly used to test the workpiece error of the benchmark, the test plate in the machinery manufacturing process plays a vital role in it is the factory inspection of the factory the most basic benchmark tool.

2. Assembly platform: It is used to assemble and debug the complete sets of products, which can be fixed on the platform with the T-shaped groove on the assembly plate, which greatly improves the assembly precision and efficiency, especially in assembly line operation.

3. Welding platform: Welding flat plate is divided into flat welding plate, T-slot welding plate, and three-dimensional welding plate, the first two uses roughly the same as the main welding workpieces benchmark three-dimensional welding plate is a new welding tooling supporting products, mainly for difficult welding, Welding, high-precision welding, three-dimensional flexible welding plate evenly distributed above the positioning hole can easily and three-dimensional welding tooling fast and accurate positioning and clamping, the plate extends to the infinite space around the welding, the main purpose is to multi- Of the products assembled in the shortest speed forming, and then welding to make the workpiece welding accuracy welding efficiency.
Cast iron platform technical requirements:

1, the platform must be subject to two back stress stress aging treatment, to prevent the deformation of stress memory distortion and the future use of the platform into the phenomenon of cracks in the occurrence of the elimination of casting stress, the purpose of rough stress, stress relief of 90%

2, the working face finished the acute angle blunt;

3, the casting surface to be processed without external force, polished, the inner surface are required to paint anti-rust paint;

4, flat face can not seriously affect the appearance and performance of sand holes, pores, cracks, slag, shrinkage, scratches, bumps, rust and other defects.

3, the precision level of 0 to 3 on the flat face, the diameter of less than 15mm sand hole allows the same material to block, the hardness should be less than the same material hardness of the face of the sand hole should be no more than 4 And the distance between the sand holes should be not less than 80mm.

4, the plate should be used high-quality fine gray cast iron or alloy cast iron and other materials, the face hardness should be 170 ~ 220HB.

5, flat face is usually used in the use of scraping processing. For the use of scraping the processing level of the three flat face, the surface roughness Ra maximum allowable value of 5 ч m.

7, the flat face with the scraping process should be carried out on the color of the test. The proportion of contact area after the inquiry shown in Table 3, or 25mm × 25mm in the number of points of contact should not be greater than 5 points Controversial, according to the ratio of contact area for the assessment basis.

8, the plate relative to the two sides, there should be installed handle or ring device screw hole (or cylindrical hole), and the device location should be designed to minimize the deformation caused by handling.

9, if the flat working surface set screw hole (or groove), the site should not be higher than the face.

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