In addition to the stability of the verification location, the inspection results should be unified on the same datum plane when the machine tool casting is inspected. When it is placed in different positions, the scribing plate and the three fulcrum loads of the scribing platform change unbalancedly, resulting in the plate contact deformation occurs with the support. The common processing method is the scraping method. The scraped flat working surface can store lubricating oil and hold small dust in the pit, and the pallet connected to the cutting will increase accordingly. Pay attention to the weight of the verification tool and increase it. Auxiliary support to enhance the firmness of the placement of the plate.

 

Machine tool castings often need to be reinforced with ribs and flanges, which complicates the structure. The cast iron material is fine-grained gray cast iron or alloy cast iron. Because these holes weaken the strength and rigidity of the box, cracks are prone to occur at the edges, which makes the outline size of the casting larger.

 

The production of machine tool castings adopts a complete resin sand production line, which uses resin sand and lost foam casting. The material of the machine tool castings is high-strength cast iron HT250-300, which has strong tensile strength, high dimensional accuracy, uniformity, and no box fastening. The casting has no flash and burr; the surface smoothness is close to that of precision casting, and the internal structure is stable. The whole production process of machine bed castings is three-level environmental protection, which can eliminate or reduce casting defects such as blisters and air and air. Integral heat treatment is a metal heat treatment process that heats the workpiece as a whole and then cools it at an appropriate speed to change its overall mechanical properties. The overall heat treatment of machine tool castings, artificial annealing 600°-700° and natural aging 2-3 years) make the product stable in accuracy and stable performance.

 

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. Our engineering enables us to design the cast iron plates and tables according to DIN Standards, Indian Standards and Chinese Standards, machining by CNC machine tools and install in the world market.