TT-slot plates, also known asTType groove workbench, a type of industrial measuring tool, primarily used for fixing workpieces, serving as the fundamental work platform for fitters to adjust, assemble, and repair equipment.

Cast IronHT200-300Working surface hardness isHB170-240, after two manual treatments (manual annealing)600Degree-700Degree and natural aging2-3The product's accuracy remains stable over the year, performing well.

TType Slot PlatformFeatures:

①TThe work surface of the mold platform must be free from defects such as sand holes, gas holes, cracks, shrinkage porosity, scratches, dents, rust spots, etc., which significantly affect appearance and usage.

②TThe surface of the mold and groove platform should be sand-molded and smooth, with paint that is firmly adhered.

③Precision Grade:0Grade-3GradeTOn the work surface of the mold slot platform, diameter less than15mmThe sand holes can be plugged with the same material, with the hardness being less than that of the surrounding material. The number of sand holes to be plugged on the working surface should not exceed4Pieces, and the spacing between sand holes should not be less than80mm。

④TThe mold slot platform should be adopted   Manufactured from fine gray cast iron or alloys, the working surface hardness should reach170-220HB。

⑤TThe working surface of the slot platform typically should be treated with a scraping process. For those that employ scraping machining,3GradeTT-slot platform work surface, with a surface roughnessRaThe permissible value is5um。

⑥The abrasive process should be followed by a coloring and mating inspection. The ratio of contact point areas shown after mating is shown in the table.3Regulation: Or as specified25mm×25mmNumber of contact points for square area is shown in the table.3Regulations, and any25mm×25mmContact points should not exceed5Dot.