Gray iron of the organization:

Gray iron processing of carbon content is relatively high, about 2.7% -4%, gray iron can be said that carbon steel matrix plus flake graphite , According to the different organization of the matrix can be divided into three categories of gray iron, namely a ferrite pearlite matrix gray cast iron, pearlite matrix gray cast iron, ferrite matrix gray cast iron.

The mechanical properties of gray iron are related to the microstructure of the matrix and the morphology of the graphite. Gray iron in the flake graphite on the matrix of the serious, easy to focus in the sharp corners of graphite, gray cast iron tensile strength, plasticity and toughness is much lower than the steel, but the compressive strength and steel, is also commonly used cast iron Pieces of mechanical properties in the worst cast iron. At the same time, the matrix structure of gray cast iron also has a certain impact on the mechanical properties of ferrite matrix gray cast iron graphite sheet, strength and hardness of the lowest, so the application of less; pearlite matrix gray cast iron graphite sheet is small, Strength and hardness, mainly used to make more important castings; ferrite a pearlite matrix gray cast iron graphite sheet than pearlite gray cast iron slightly thick, the performance is not as pearlite gray cast iron. So the industry is more use of pearlite matrix gray iron processing parts.

Gray iron castings with good castability, good shock absorption, wear and corrosion resistance, is a commonly used hardware The

Gray iron processing parts of the heat treatment methods:

1, to eliminate internal stress annealing.

2, to improve the machinability of the annealing. Ningbo Yinzhou Lei Sheng Machinery Co., Ltd. specializes in the production of precision casting parts, to provide gray iron processing, CNC machining, ductile iron processing and other processing services, according to customer requirements processing products, the price is reasonable, the amount of Congyou, welcome to inquire the relevant details.