T-slot plate bending applies to machine tools vertical inspection, installation, inspection, and check the verticality of the workpiece on the plate, T groove plate bending for high-precision machinery and equipment, inspection and machine is not perpendicular to mutual perpendicularity of the inspection, the T-slot plate bending maintenance equipment when the surface of the test parts, also commonly used in the the fitter crossed. 
 T-slot plate bending in a wet, corrosion, excessive use and stored under low temperature environment, confirmed that no case to use. 
 T-slot plate bending accuracy: can be divided into 000, 00, 0, 1, 2, 3. Selection of accuracy standards in general as appropriate. More than three precision plate bending test, crossed, assembly and use, the following four precision plate bending is generally used as the use of riveting, etc. 
 T-slot plate bending material: high-strength cast iron HT200-300 face hardness of HB170-240, 600 degrees -700 degrees after two artificial annealing and natural aging 2-3 years, the accuracy is more stable, abrasion resistance good. 
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