机床铸件生产加工，大型机床铸件材，铸造厂家河北北重

Machine tool castings are the most widely used in castings. Beizhong Co.,Ltd is devoted to machining machine tool castings, large lathe tool castings,vertical lathe beam castings and so on.

The castings adopts Resin Sand Molding EPC .Single castings is within 85 tons in weight and casting material includs HT200,HT250,QT400,ZG450,etc.

机床铸件热处理过程：

床身类铸件产品作为一种大型铸件必须要经过热处理才能提高本身的使用性能，改善铸铁铸件的内在质量。金属热处理是机械制造中的重要工艺之一，与其它加工工艺相比，热处理一般不改变工件的形状和整体的化学成分，而是通过改变工件内部的显微组织，或改变工件表面的化学成分，赋予或改善工件的使用性能。其特点是改善工件的内在质量。

As the large castins, lathe bed castings must be subjected to heat treatment in order to improve the performance itself, and  improve the intrinsic quality of iron castings. Usually the heat treatment does not change the overall shape and chemical composition of the workpiece, but by changing the microstructure within the workpiece, or to alter the chemical composition of the workpiece surface to improve the performance of the work piece. Its characteristic is to improve the intrinsic quality of the workpiece.