Uses crossed platforms: check measurement reference machine parts flatness, straightness tolerance and other forms can also be used for grinding parts marking, installation of equipment and other purposes. Is testing benchmarks mechanical parts flat, parallel, straightness tolerance and other forms can also be used for marking, welding and grinding processing and measurement technology in general and other parts and precision parts. Crossed plate material: high-strength cast iron HT200-300 face hardness HB170-240, after two manual processing (annealing 600 degrees -700 degrees artificial and natural aging 2-3 years) use of the product accuracy and stability, wear resistance Well crossed platform, crossed plate quality inspection dash plate, also known as iron crossed platform: flatness criteria when selecting crossed platform, companies are generally based on the use of discretion. Flatness parameters platform to do so more than three checks, instrument panel assembly, crossed platform commonly used welding using br /> scribe platform technologies include the following three Flatness: bearer crossed platform, crossed platform length and width, surface accuracy across platforms, across the weight of the platform, crossed platform of more than 20 kinds of machinery and mechanical manufacturing, electronics, electric power industry, heavy industry, accounting for 95%, which is the most common use of dash total production platform materials. Crossed plate of fine particles gray cast iron or alloy cast iron, cast iron plates should be used material, is parallel to the plane of the test machine parts, basic straightness measurement of geometric tolerances on, but can also be used for general parts and marking, welding and grinding processes of precision parts machining and measurement. Common treatment methods for scraping method, cross scraping plate surface and the lubricating oil can be stored to accommodate slight dusting in the pit, in order to improve the reliability and stability of the reference reflected. Crossed flat work quality and data platform specifications, precision tolerances are different platforms, greater tolerance, increased correspondingly. Workpiece inspection and measuring mechanical inspection of precision measurement Plane, mainly used, please check the dimensional accuracy of parts or deviant behavior, and engaged in precision machinery manufacturing the most is not the lack of cross-plane reference count. Workpiece weight can not exceed the rated load crossed platform, otherwise it will cause to reduce the quality of their work, there may be damage to the structure crossed the platform, and even cause the deformation of the cross-platform, so the damage can not be used