Assembly platform also called iron assembly platform or fitter assembly platform, is one of the main tools fitter job. Assembly platform mainly for job fitter fixed workpiece, is fitter workers used to debug the basic platform equipment, assembly equipment, maintenance equipment necessary. Life is usually a very long assembly platform, cast iron assembly platform as long as the correct way to use and store surface precision assembly platform can be kept for 2 years or even longer time, so for the life of the assembly platform plays an important role in the proper use of the platform assembly and storage. Cast iron assembly platform (turn with flat) Specifications: 1000 × 750-3000 × 6000 (mm), special specifications can be manufactured according to user needs, larger than this size can be spliced ??welding platform. Uses: used in power machinery equipment assembly and commissioning, surface with a T-shaped groove, can be fixed power machinery equipment. Work surface can be processed the hole, U-shaped hole or long holes. Precision: According to the national standard verification procedures JJG117-91 implementation into three, two fine plane. Material: high-quality high strength gray cast iron HT200-250, face hardness HB170-240, cast after two artificial annealing 600 ℃ -700 ℃ or natural aging 2-3 years, the complete removal of internal stress, accuracy and stability, wear resistance Okay. Style: Products made of stiffener plate design, reasonable structure. Packaging: wooden packaging. Before packing by anti-rust treatment and proper packaging to prevent damage to the product due to poor packaging during transport. The plate was certified by, should be accompanied by a product certification; shall be the date of manufacture and serial number on the product certification. Assembly platform (turn with flat) Technical requirements: 1, flat working surface may not have seriously affected the appearance and performance of sand holes and pores, cracks, slag, shrinkage, scratches, bumps, rust and other defects. 2, the casting surface of the plate should be cleared of sand and flat, painted solid. 3, the accuracy of the registration level is 0 -3 flat work surface, a diameter of less than 15mm of clearance holes allowing the same material clogged, its hardness should be less than the hardness of the surrounding material. Face clogged sand hole should be limited to four, and the spacing between the holes of sand should not be less than 80mm. 4, should be used to create high-quality fine flat gray cast iron or alloy material, its face hardness should 170-220HB. 5, flat working surface shall normally be by scraping process. Scraping of adopting three flat working surface, the maximum allowable value of the surface roughness Ra 5um. 6, flatness tolerances specified in Table 2. 7, using scraping process should be painted on the research test. After the research on the area of ??the contact point is displayed a predetermined ratio shown in Table 3: or according to a square area of ??25mm × 25mm a predetermined number of contact points are shown in Table 3, and should any of 25mm × 25mm between the contact points is not more than 5:00.