In order to make the cast iron machine tool work platform have the required mechanical, physical and chemical properties, in addition to the reasonable selection of materials and various forming processes, the tempering and aging treatment process is essential. In addition, aluminum, copper, magnesium, titanium, etc. and their alloys can also be heat treated to change their mechanical, physical and chemical properties to obtain different functional properties. The overall heat treatment is to heat the cast iron platform casting as a whole, and then cool it at an appropriate speed to change the overall mechanical properties of the cast iron platform and the flat plate.

Main mechanical properties of cast iron machine tool working platform:

A. Material and surface hardness. High-strength cast iron HT200-300, the hardness of the flat working surface should be between HB170-220 or 187-255;

B. Tolerance of shape and position, including nominal size and verticality tolerance;

C. Appearance. There should be no rust, scratches, bumps and other appearance defects affecting the use on the working surface of the flat plate. There should be no casting defects such as sand holes, pores, cracks, slag inclusions and shrinkage porosity on the working surface of the flat plate. The casting surface should be cleaned of molding sand, and the surface should be smooth and firmly painted, and the tax edges should be blunt;

D. Flatness. Generally, it will be grade 1, grade 2, grade 3;

E. Contact spots;

F, The plane fluctuation amount;

G, The allowable deflection value of the working surface;

H. Surface roughness. It is carried out according to the standard metrological verification procedures, with five grades of 0, 1, 2, 3 and fine planing.

cast iron T slots plate

Jinggong Measuring Tools Producing Co., Ltd is specializing in manufacturing and exporting all kinds of cast iron products，especially for cast iron floor plates, cast iron surface plates, cast iron clamping plates, cast iron angle plates, cast iron box table and other machine tool castings. The products have the features of reasonable design, stable structure, superior quality and competitive price.