Features:

1. According to the form of carbon classification, can provide three categories such as gray cast iron, white cast iron, mottled cast iron;

2. Gray cast iron can be divided into six grades as ordinary gray cast iron, malleable cast iron, ductile cast iron, vermicular cast iron: HT100, HT150, HT200, HT250, HT300, HT350;

3. Ordinary cast iron can be obtained by adding appropriate alloying elements (such as silicon, manganese, phosphorus, nickel, chromium, molybdenum, copper, aluminum, boron, vanadium, tin, etc.);

Production:

1. blast furnace and cupola melting technology;

2. sand model and mold melting technology;

3. provide temperature control and chemical composition stroke of different specifications, strength, toughness of hundreds of cast iron products;

Inspection and testing:

Before leaving the factory, products need to pass appearance testing, internal testing, chemical composition analysis, metallographic inspection, mechanical performance testing, non-destructive testing, dimensional accuracy, surface quality and other inspection and testing means to control product quality and avoid the occurrence of defects such as pores, cracks, shrinkage holes, deformation and so on.