The machine column is important machine tool structure, one plays the machine up and down movement and a supportive role. 
 Machine column material for HT250, this material strength, wear resistance, heat resistance, good, good vibration damping, casting better performance, the need for artificial aging treatment. In addition to frequently used HT200 of HT300 or ductile iron, according to the different job requirements. 
 The machine column processing is mainly reflected in the guide surface accuracy and hardness test machine bed rail surface equivalent is generally not more than 3, the rail hardness of different materials, and completion of quenching were iron HT250 ---- HRC46-50 of HT300 ---- HRC48-52, the hardening depth of 2.5-3mm. 
 Machine column http://www.bthxzw.com/JCLZ.html 
 A. Resin sand disappeared mode pattern casting a single piece of more than 40 tons annual production capacity of 8500 tons. Including the machine bed, table, columns, beams, gantry top beams. 
 Two. The materials are high quality and fine gray cast iron HT200-HT300, the precise ratio, a higher tensile bending strength, you buy peace of mind. 
 3. International popular heat treatment process, the stress and deformation of the castings to minimize the degree. Long-term use tends to be more stable. 
 4. Our factory specializes in undertaking large-scale long machining, milling boring can be. For example, a 2 x 8 m gantry milling machine, planer bed (the overall length of the bed up to 16 meters), the cast is divided into two to cast, can be divided into two rough, but finishing, you can connect them together, using the factory 3.2 x 16 m of the planer processing to ensure that the 16 meters of the bed as a whole, the straightness and the final machining accuracy of the machine bed. 
 5 Factory in the region of large casting advantages and favorable conditions of the machining, the overall machine (planer, milling machine, assembly and sales of the landing boring and milling, end milling machine). 
 Machine column http://www.bthxzw.com/JCLZ.html 
 The Botou Navistar cast material measuring 
 Tel: 5664468 13373071795 
 Contact: Xin Yue