The Importance of Marking Cast Iron Platform in Gauge Block Repair

The importance of marking cast iron platform in gauge block repair:

The marking cast iron platform is an indispensable manual grinding tool in the repair of measuring blocks. It is generally made of gray ductile iron material, with a moderate hardness of about HB180, no quality problems on the surface, and no air holes or sand holes are allowed. The flatness of the repaired measuring block meets the requirements, and the cast iron platform should be regularly repaired regardless of its age; At the same time, timely and correct sand compaction should be carried out to ensure good cutting force and accuracy.

Marking cast iron platform

The underlined cast iron platform is used for power experiments and equipment debugging of mechanical engines. It has good planar stability and toughness, and has a T-shaped groove on the surface, which can be used to fix experimental equipment. The marking cast iron platform is a flat reference tool used for workpiece inspection or marking. The installation of the marked cast iron platform should be adjusted to ensure that the horizontal load is evenly distributed on all support points, and vibration should be avoided when using at an ambient temperature of 20 ± 5 ℃. The hardness of the cast iron HT200-300 working face is HB170-240. After two manual treatments, manual annealing at 600-700 degrees and natural aging for 2-3 years, the accuracy of this product is stable.

The precision level of the cast iron platform for marking is lower than '; 00" On the working surface of the cast iron platform, sand holes with a diameter less than 15mm are allowed to be blocked with the same material, and their hardness should be lower than that of the surrounding materials The technical requirements for designing a lined cast iron platform are based on the principle of achieving good results at low cost. The mechanical processing inspection of the cast iron platform is mainly to check whether there are sand holes, air holes, cracks, sand inclusions, shrinkage porosity, and processing errors on the cast iron platform; The finished product inspection of the cast iron platform is mainly to check whether the flatness, appearance, and specifications of the cast iron platform can meet the requirements for use.

The installation of the marked cast iron platform is manufactured according to the standard GB/4986-85, and the products are made into reinforced plate and box types. The working surface is rectangular and made of HT200 material. The working surface adopts scraping and grinding technology, and V-shaped T-shaped U-shaped grooves and circular holes and long holes can be added on the working surface. Marking cast iron flat plate is a flat reference tool used for workpiece inspection or marking Used for power experiments and equipment debugging of mechanical engines, it has good planar stability and toughness, with T-shaped grooves on the surface, which can be used to fix experimental equipment. When using the marked cast iron platform, the workpiece should be handled gently and rough workpieces should not be moved on the cast iron plate to avoid damage such as bumps and scratches on the working surface of the marked cast iron platform.