Ground flat In grinding processing in the has a embedded has Emery abrasive of flat Shang for mill sand of form, in this form in the Institute with is essential of main tool, the Institute with called embedded sand grinding flat. grinding flat has Organization uniform, structure dense, no trachoma stomatal, loose, defects. Shang sand easy, sand grain distribution uniform rich, sand grain embedded firm cutting performance strong. surface smooth, glossy, is blue, wear sex good.

Cast iron lapping plate gauge of manufacturing, repairing, parts grinding, high-precision mechanical parts, the processing of optical instruments. Cast iron lapping plate is a in order to ensure that the workpiece accuracy and surface finish coated or block of abrasive grains in the grinding plate, through the ground plate motion relative to the workpiece under certain pressure on machined surface finishing and derivative of a cast iron plate. Used to use embedded with silicon carbide lapping abrasive Scrubs on the cast iron plate in the form of grinding tools are essential in this form the main tools, the Institute known as block sand grinding plate.

Grinding platform, cast iron lapping plate Is cast iron plate after manual scraping after the formation, the three plates with silicon carbide abrasive grinding into each other, although its surface can reach very well, but it is only used as a coarse grind certain parts or test. If you use it to grind, micrometer calipers grinder, seal piece is absolutely not allowed, only worse scratches more artifacts and research, and has no problem with a sand flat. Because sand flat and further processing on the basis of the grinding plate. Is sand process, sand is a Tablet embedded in silicon carbide abrasive grinding with fine abrasive paste grind out through three plates to each other, and then use the w series by the ultrafine powder of white fine grinding until the standard is met, and will not scratch the workpiece. Hope that the majority of the users according to their order required, not to create unnecessary loss.

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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