Development trend of cast iron brake shoe in Japan;

Mid-Manganese alloy cast iron brake shoe was studied and compared with mid-phosphorous and high-phosphorous cast iron.

Surface laser alloying processing with nickel base powder for improcing abrasiveness of high phosphorus cast iron;

After a series of experiment,the castings of high phosphorus cast iron have been gotten,whose microstructure,property and chemical composition meet the needs of the user by strictly controlling the content of elements in the cast iron and making inoculation to the molten iron.

To keep pace with power increasing of diesel engines trial to adopt high phosphorus cast iron for production of G32 model cylinder block is carried out.