Machine tool bed castings

The machine tool workbench is a benchmark measuring tool for measuring the flatness of workpieces.The working surface adopts scraping technology,which has good planar stability and toughness.It can process workpieces with V-shaped,T-shaped,U-shaped grooves,circular holes,long holes,and other shapes.The machine tool workbench is the fundamental platform in mechanical manufacturing.

Machine tool workbench specifications:300mm x 300mm-3000mm x 6000mm,(various specifications of machine tool workbenches can be customized according to user requirements)Machine tool workbenches.The material of the machine tool workbench is cast iron HT150-300,and the hardness of the working surface is HB170-350.

Advantages of resin sand mold machine bed castings:

1.The resin sand mold has good stiffness,and in the early stage of pouring,the sand mold has the conditions to utilize the graphite expansion during the solidification process of cast iron,as well as the defects of ground shrinkage and porosity,to achieve less riser and no riser casting of gray cast iron and ductile iron parts.

2.Polystyrene foam molding is used in the production of full mold casting,and furan resin self hardening sand molding is applied.When the molten metal is poured into the mold,the foam plastic pattern will vaporize under the action of the high-temperature molten metal,burn and disappear,and the molten metal will replace the position occupied by the original foam plastic,and will be cooled and solidified into a full mold casting with the same shape as the pattern.

3.Relatively speaking,lost foam casting has significant advantages over traditional sand molds in producing single or small batches of automotive panels,machine bed bodies,and other large molds.It not only saves expensive wood mold costs,but also facilitates operation,shortens production cycles,improves production efficiency,and has advantages such as small size,small machining allowance,and good surface quality.

The specific production process of machine tool bed castings:

1.Determine the drawings,and then combine the quantity and customer requirements to manufacture wooden or lost foam molds.

2.Conduct pre casting inspections on wooden or lost foam molds,and put them into production once they meet the requirements.

3.Before and after furnace testing,the material requirements for the castings of the vertical lathe body.

4.Inspect the actual dimensions and casting defects of the lathe body castings.

5.Artificial tempering,casting internal stress.

6.Perform rough machining

7.Internal stress during manual tempering processing.

8.Painted appearance of castings.