Cast iron platform appearance is basically box type, face a rectangle, square or round, materials for HT200-300, QT400-600, USES the scraping the research process, the working surface can be processed V, T, u-shaped slot, dovetail groove, round hole, the long hole, etc., are used to workpiece, test equipment, marking, assembling, welding, assembling, maohan plane reference measuring tool.
Cast iron plate is used for workpiece inspection or line plane datum instruments. Plate installation should be transferred to level, load uniform distribution in each fulcrum, environment temperature (20 ± 5 ℃), use should avoid vibration.
Cast iron platform Abstract:
Cast iron platform according to the structure is divided into steel plate and box type; According to the use is divided into test platform, crossed the platform and pressure sand platform; According to the accuracy grade is divided into 00, 0, 1, 2, 3 level platform, 2 class above for test platform, grade 3 for line platform.
Cast iron platform overall specifications maximum 4 x 8 meters, more than this specification can block splicing, the use of wear, be able to fix scraping restore its accuracy, usable coating inspection parts flatness, with accurate and direct, convenient advantage. After scraping the research on cast iron platform to promote table seat, workpiece is smooth, no hair acerbity feeling, convenient measurement, to ensure the accuracy of measurement.
Cast iron platform cast iron quality and heat treatment quality of plate use a great impact on performance, or because of large residual internal stress make face deformation; Or because you did not wear resistance of accuracy can't keep; Or for skiving difficult not numerical small roughness. The use of cast iron platform must pay attention to cast iron material choice, the aging treatment methods such as cast iron plate to eliminate the residual stress.
Cast iron plate special applied in large scale equipment foundation leveling, with reasonable design, the structure is stable, high in precision, resistance to wear and tear and other features, and can implement 3000 mm - 6000 mm plate joining together, the product is through the drag system or grinding is made. Widely used in machining, the tool workshop, machine (check) repair shop, large equipment base, measuring room and precision processing of inspection, measuring and grinding, and can be measured accurately, test the flatness, straightness and Angle tolerance value.
Cast iron platform Material:
Cast iron plate using HT200-300 casting, and the material of the ingredients in raw material content and ingredients listed in this standard (%) : carbon content: 3.1-3.4, manganese: 0.6-0.9, silicon: 1.5-2.0, sulfur < 0.12, p < 0.3.
Cast iron platform Specification:
100 mm * 100 mm - 3000 mm * 8000 mm (special specifications according to buyer's drawing production).
Cast iron platform ccuracy:
According to the national standard metrological verification code execution, respectively,, 0, 1, 2, 3 to 5 grades.
0 level grade 1 flat platform in each edge is 25 mm square within the scope of no less than 25 points.
Level 2 flat platform in each edge is 25 mm square within the scope of not less than 20 point.
Level 3 flat platform in each edge is 25 mm square within the scope of not less than 12 o 'clock.
Cast iron platform Flatness:
1, AA: its flatness (μ m) = 1 + 1.6 D2 (D as a platform diagonal long or diameter), used for high precision of measurement, often used in laboratory.
2, A level: its flatness is the AA level two times of error, and often used in tool checkout room for measuring precision of the inspection.
3, grade B: its flatness is the AA level four times of error, and often used in tool checkout room or in the on-site inspection measuring tool or crossed with.
| (μm) | |||||
| 0 | 1 | 2 | 3 | ||
| 100×100 | 4 | 8 | 16 | ||
| 200×100 | 5 | 10 | 20 | ||
| 200×200 | 5 | 10 | 20 | ||
| 300×200 | 6 | 12 | 24 | ||
| 300×300 | 6 | 12 | 24 | ||
| 400×300 | 6 | 12 | 24 | ||
| 400×400 | 6 | 12 | 24 | ||
| 500×400 | 6 | 12 | 24 | ||
| 600×400 | 7 | 14 | 28 | ||
| 600×500 | 7 | 14 | 28 | ||
| 800×400 | 8 | 16 | 32 | 80 | |
| 800×600 | 8 | 16 | 32 | 80 | |
| 900×600 | 8 | 16 | 32 | 80 | |
| 1000×750 | 18 | 36 | 90 | ||
| 1000×1000 | 20 | 39 | 96 | ||
| 1200×1000 | 20 | 39 | 96 | ||
| 1500×1000 | 24 | 48 | 120 | ||
| 2000×1000 | 26 | 52 | 129 | ||
| 2000×1500 | 56 | 140 | |||
| 2000×2000 | 60 | 152 | 230 | ||
| 3000×1000 | 168 | 248 | |||
| 3000×1500 | 174 | 254 | |||
| 3000×2000 | 184 | 275 | |||
| 4000×2000 | 219 | 310 | |||
| 4000×3000 | 240 | 360 | |||
| 6000×3000 | 308 | 460 | |||
