Cast Iron Scraping Plate is a special tool used in mechanical manufacturing, precision inspection, and assembly for ultra high precision flat benchmarks. Its surface is manually or semi manually polished through traditional scraping processes to form unique micro textures, with high flatness and oil film retention capabilities. The following are its core uses and technical features:
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###* * 1. Core purpose**
1. * * Ultra precision testing benchmark**
-Micro level Flatness Detection: As a high-precision benchmark for laboratories or metrology rooms, it can detect the flatness and straightness of precision parts (such as machine tool guides and optical platforms) with an accuracy of up to level 0 (± 0.005mm) or even higher.
-* * Cooperate with R&D testing * *: Use the "coloring method" (coated with red lead powder) to test the fit between two planes, for evaluating the contact accuracy of guide rail pairs and sealing surfaces.
2. * * Precision assembly and adjustment**
-High precision equipment assembly: used as a reference platform to adjust the parallelism and perpendicularity between components in precision machine tools and optical instrument assembly.
-* * Guide rail scraping and grinding assistance * *: Used for scraping and grinding repair of machine tool guide rails, guiding the scraping amount through a flat plate transmission reference.
3. Calibration of molds and fixtures**
-Mold parting surface calibration: Check the flatness of the parting surface of injection molds and die-casting molds to ensure the accuracy of mold closure.
-Precision fixture leveling: Calibrate the installation surface of high-precision fixtures to reduce clamping errors.
4. * * Special Industry Applications**
-Optical component processing: provides reference support for the grinding of optical lenses and laser reflectors.
-Semiconductor equipment: used for platform leveling and stability testing of wafer processing equipment.
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###2. Core Features**
1. Advantages of Scratching and Grinding Technology**
-Microscopic oil storage structure: The surface is scraped to form uniform point like or mesh like pits, which can store lubricating oil, reduce friction and wear, and extend service life.
-Stress release: The manual scraping process can further eliminate residual stress in the material and avoid deformation after long-term use.
2. * * Ultra high precision and stability**
-The flatness can reach * * level 0 (GB/T 22095 standard) * *, with local errors controlled at the micrometer level, suitable for nanometer level precision requirements.
-The cast iron material (HT250/HT300) has undergone multiple aging treatments and has extremely strong deformation resistance.
3. * * Functional extensibility**
-It can be used as a supplement to other detection tools (such as granite platforms) to leverage the damping characteristics of cast iron in vibration sensitive scenarios.
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###III. Typical Application Industries**
-Precision machine tool manufacturing: Inspection and assembly of machine tool guide rails and spindle boxes.
-* * Optical instruments * *: Calibration of reference platforms for laser equipment and astronomical telescopes.
-Mold industry: high-precision mold parting surface grinding and testing.
-Semiconductor and Electronics: Leveling Standards for Photolithography Machines and Wafer Inspection Equipment.
-* * Aerospace * *: Engine blade fixture calibration, satellite component assembly.
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###4. Differences from Ordinary Inspection Platforms**
|* * Features * * | * * Cast iron scraping flat plate * * | * * Ordinary cast iron inspection platform * *|
|------------------|----------------------------------|---------------------------------|
|* * Processing technology * * | Manual/semi mechanical scraping and grinding, surface point texture | Grinding machine grinding, surface smooth or fine frosted|
|* * Accuracy level * * | Level 0 (± 0.005mm) or higher | Level 1 (± 0.02mm) or Level 2 (± 0.05mm)|
|* * Application scenarios * * | Ultra precision inspection, research and assembly | Routine quality inspection, marking, general assembly|
|* * Cost * * | High (relying on manual scraping and grinding, time-consuming) | Low (high efficiency of mechanized processing)|
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###5. Selection and Maintenance Suggestions**
1. * * Selection points**
-Accuracy requirements: Priority should be given to using Level 0 platforms for metrology rooms or ultra precision scenarios, while Level 1 can be used for high demand workshops.
-* * Size matching * *: Common specifications range from 400 × 400mm to 2000 × 1000mm, and oversized items can be customized with a spliced structure.
-Surface texture: Point like scraping is suitable for grinding and testing, while fish scale patterns are suitable for scenes with high lubrication requirements.
2. * * Usage Guidelines**
-* * Handle with care * *: Avoid the workpiece from impacting and scratching the grinding surface, and prevent damage to point like structures.
-Regular oiling: Apply a small amount of light engine oil before use to enhance the anti rust effect of oil storage.
-Isolation vibration: Install shock-absorbing pads during installation to avoid external vibrations affecting detection accuracy.
3. * * Precision maintenance**
-* * Annual calibration * *: Flatness can be detected by laser interferometer or electronic level, and local wear can be repaired with targeted scraping.
-* * Repair process * *: Professional technicians are required to use scrapers for repair, and direct grinding is prohibited (damaging the oil storage structure).
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###6. Summary**
The cast iron scraping and grinding plate is a precision amplifier in the field of precision manufacturing, and its scraping and grinding process endows it with irreplaceable microscopic properties, especially in scenarios where high-precision detection, grinding and assembly, and long-term stability requirements are stringent. Despite its high cost and complex maintenance, it remains the core foundational tool for ensuring ultra precision manufacturing in cutting-edge industries such as semiconductors, optics, and aerospace.