How to distinguish the quality of cast iron welding platform
1. The appearance quality of welding platform refers to the surface roughness, surface defect, scale error, shape error, quality error, uneven surface thickness, porosity and sand hole on the surface of cast iron marking plate, etc
2. The internal quality of welding plate mainly refers to the chemical composition, physical function, mechanical function of welding platform casting
The metallographic structure and the condition of hole, crack, impurity and segregation in the casting;
3. The application quality of welding plate precision refers to the working durability of the welding plate casting under different conditions, including wear-resistant, corrosion-resistant, cold and heat resistant, fatigue, shock absorption and other functions, as well as cutting and weldability and other technological functions.