Cast iron platform

The appearance is basically box type, with rectangular, square, circular and other working surfaces. The materials are HT200-300, QT400-600, using scraping and grinding technology. The working surface can be machined with V-shaped, T-shaped, U-shaped grooves, dovetail grooves, circular holes, long holes, etc. It is a flat reference measuring tool used for workpiece and equipment inspection, marking, assembly, welding, assembly, riveting and welding.

Cast iron platformDivided into reinforced plate and box type according to structure; Divided by purpose into inspection flat plate, marking flat plate, and sand pressing flat plate; According to the accuracy level, the tablets are divided into 00, 0, 1, 2, and 3 levels, with level 2 and above being the inspection tablets and level 3 being the marking tablets.

The overall specification of the cast iron platform is 4 meters by 8 meters. Multiple pieces larger than this specification can be spliced together. After wear and tear, it can be re scraped to restore its accuracy. The flatness of the parts can be inspected by painting method, which has the advantages of accuracy, intuitiveness, and convenience. Pushing the gauge seat and workpiece smoothly on the scraped cast iron flat plate without any rough feeling facilitates measurement and ensures measurement accuracy.

The quality of cast iron and heat treatment on the cast iron platform have a significant impact on the performance of the flat plate, or the working surface may deform due to residual large internal stresses; Or due to the inability to maintain accuracy; Or due to difficulty in scraping, roughness with small values cannot be obtained. Therefore, when using cast iron plates, attention should be paid to the selection of cast iron materials, and methods such as aging treatment should be used to eliminate residual stresses in cast iron plates.

Application of cast iron platform: Suitable for various inspection work, precision measurement reference plane, used for machine tool mechanical measurement reference, checking the dimensional accuracy or form deviation of parts, and making precision marking. It is also an essential basic tool in mechanical manufacturing.

Materials and Processing

Cast iron platform material: The material is high-strength cast iron HT200-250 with a working face hardness of HB160-210. After two treatments (manual annealing at 600-700 degrees or natural aging for 2-3 years), the accuracy of the product is stabilized and the wear resistance is good.