1. Gray cast iron

 

The structure of gray cast iron is composed of graphite and matrix. The matrix can be ferrite, pearlite or ferrite plus pearlite, which is equivalent to the structure of steel. Therefore, the structure of cast iron can be regarded as graphite distributed on the steel matrix. Low cost, low price and wide application. Mainly used for machine tool bed gearbox pulleys, etc.

 

Gray cast iron has a certain strength, but its plasticity and toughness are very low. This performance characteristic is related to the properties of graphite itself and its existence in the cast iron structure. It has good shock absorption. When gray cast iron is used to make parts such as the base or frame of the machine and equipment, it can effectively absorb the energy of the machine vibration; it has good lubrication performance; and good thermal conductivity. This is because graphite is A good conductor of heat; in addition, its smelting is also more convenient, and it also has good casting properties. Its fluidity is good, linear shrinkage rate and body shrinkage rate are small, castings are not easy to crack, so it is suitable for casting complex castings and thin-walled castings, such as automobile cylinder blocks and cylinder heads.

 

2. Nodular cast iron

Nodular cast iron is obtained by spheroidization and inoculation treatment to obtain nodular graphite, which effectively improves the mechanical properties of cast iron, especially the plasticity and toughness, thereby obtaining higher strength than carbon steel. Nodular cast iron is a high-strength cast iron material developed in the 1950s. Its comprehensive performance is close to that of steel. It is based on its excellent performance that it has been successfully used to cast some complex forces, strength, toughness, and wear resistance. Highly demanding parts. Nodular cast iron has rapidly developed into a cast iron material second only to gray cast iron and widely used. The so-called "substituting iron for steel" mainly refers to ductile iron.

 

For cast iron T slotted plates/base floor tables/clamping tables/testing platforms...are all made of gray cast iron, which is more suitable to test and inspect as the part of CNC machine.

 

 

cast iron clamping tables

 

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.