Cast iron base platform: mainly used for large equipment, installation and commissioning, as well as measurement of workpiece underlined. Base plate, is a single specification of small flat panel stitching, and platform high precision stitching simple features such as unlimited extension base plate can be used more widely.

Cast iron base platform is widely used in the construction industry, printing industry, hydraulic equipment, building construction, railway locomotives, equipment production, electronics, petrochemical, automotive, ceramic industry, railway locomotives, and other fields.

Cast iron base platform application: apply mechanical inspection measurement reference datum plane used for machine tool, inspect, and precision parts size precision or bias and precision line, and is also an indispensable basic tools in the machinery manufacturing.

Foundation materials and use of cast iron: HT200 materials for high strength cast iron face hardness of HB170 – 220, two manual processing (artificial annealing 600 – 700 degrees and the natural limitation of 2 – 3 years) so that the accuracy and stability of the product, good wear resistance, the following materials and products handling in addition to ductile iron is the same.

Precision cast iron base platform: according to national standard metrological implement respectively 0, 1, 2, 34 levels.

Cast iron plate Specifically applied to large equipment base levelling, reasonable design, structural stability, high precision, wear-resistant characteristics of 3000mm-6000mm Tablet mosaics can be realized, the product is made by scraping or grinding. Widely used in machining, tool shop, machine (test) repair shop, large equipment base, measuring and precision machining of test, measuring and grinding, and precise measurements, test the flatness of the workpiece, flatness and the tolerance value.

Repair work platform/cast iron Accuracy of the face is mainly flat. T-slot of the workpiece and clamp plate face is the positioning and movement between the direction of the relationship, in order to make reliable and cast iron flat face contact, its flatness is generally provided for in the concave. Countertops in all directions (vertical, horizontal, diagonal, radiation) on the straightness of the maximum values as a table surface flatness. With Rails straightness measurement method measurement method is basically the same. Available research points method, feeler gauge method, leveling instrument, optical flatness measuring instrument and method of inspection.

Cast iron platform technical requirements:

1, the platform must go through two back stress aging treatment, prevent stress memory appears distorted and platforms used in the occurrence of cracks in the future to eliminate casting stress and rough purpose of stress, strain relief up to 90%;

2, face processing acute angle obtuse;

3, casting force is not machined surface greasy, polishing, are required to paint coating on the inner surface;

4, flat face without seriously affecting the look and performance of sand, pores, cracks, inclusions, porosity, scratches, bumps, rust and other defects.

3, precision is 0 ~ 3-level on the flat face of diameter less than 15mm blockage of sand allows the use of the same materials, its hardness is less than with the hardness of surrounding materials. Sand blocking the face-hole should be no more than 4. And sand between the distance should not be less than 80mm.

4, plate shall be made of high quality fine grey cast iron or alloy materials such as cast iron, its working surface hardness should be 170~ 220HB.

5, flat working surface is usually applied using a scraping process. Skiving machining of 3 flat working surface, the surface roughness Ra of the maximum allowable value of 5 ч m.

7, flat face paint for the Institute tests should be carried out using the scraping process. Displayed after the grinding point of contact area ratio is shown in table 3 provisions or 25mmx25mm difference between points of contact shall not be more than 5 points. In case of disputes, contact area ratio as the assessment basis.

8, flat on either side, should have a threaded hole of the handle or ring equipment installed (or a cylindrical bore), and location of the device should be designed to minimize the deformation caused by the handling.

9, plate set screw hole on the face (or Groove), which parts should be no higher than the face.

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