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. Slotting 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.

Cast iron platform, the largest single-block domestic specifications can only be 3000 * 8000mm or 1500 * 10000mm, if the customer requirements of the cast iron platform is greater than this specification, it requires two or a few pieces of stitching, cast iron splicing platform in use completely Will affect its overall accuracy. Splicing cast iron platform is mainly used in ultra-large mechanical parts of the crossed, positioning and so on.

Material and high-strength cast iron HT200-300, face hardness HB170-240, after two artificial annealing 600 degrees -700 degrees, so that the accuracy of the product stability, good wear resistance.
Accuracy: According to the national standard measurement verification procedures, namely 0,1,2,3, fine planing five grades.
Board and then on the large workpiece inspection, marking, assembly, welding, etc. Butt-crossed platform in the processing have to pay attention to the processing plate around the docking to find a good degree of verticality, so as to avoid docking when the flat panel is not docking situation. Docking platform platform accuracy of a single piece of docking accuracy in the same docking after the docking of the assembly plate still maintain a single assembly plate accuracy, the adjacent two docking plate to adjust the horn support can use the same piece, docking assembly plate The support is generally made of rectangular cast iron support or cast iron square tube.
Cast iron platform for the accuracy of periodic inspection and maintenance, because if the accuracy of the crossed platform wear serious, without repair scratch research, then its precision performance will plummet, thus affecting the accuracy of the above operation, the first to tell We are crossed the platform in a short time when not in use, be sure to put oil placed up, we see a lot of customers to buy the platform has been rusty, and the time is not very long, and if so, The next time you use to how to use it.The second is to tell the customer is a crossed platform when the use of the platform must not be used as a welding platform in the above, when crossed in the above crossed, smashing things, Also directly on the percussion, this is not right.
Mosaic cast iron platform flat panel technology is mainly reflected in the unilateral straightness on the side of the board need to pin to fixed around the need to adjust the horn to leveling, many customers in the procurement of large specifications required, There are more than ten meters or even tens of meters length and width requirements, the manufacturer to take into account the processing and transport restrictions, it is recommended that customers use more than flat-panel stitching into the required specifications.

T-slot 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 accuracy grade 0 ~ 3 flat working surface, the diameter of less than 15mm of sand holes allow the same material blockage, the hardness should be less than the hardness of the same material.Faceface blocked sand holes should not be more than 4 And the distance between the sand holes should not be less than 80mm.

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

5, the flat face is usually applied to use scraping process.For scraping the three-stage flat working face, the surface roughness Ra of the maximum allowable value of 5чm.

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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