What is the difference between powder metallurgy structural parts and cast iron parts?

Nowadays, powder metallurgy structural parts and cast iron parts are widely used in machinery manufacturing, automobiles, electronics, instrumentation, high-performance alloy manufacturing and other industrial fields, but the two are completely different two production processes, and the materials are different. So what is the difference between powder metallurgy structural parts and cast iron parts, the following small series for you to introduce:

1. Material selection:

The material of powder metallurgy structural parts has unique chemical composition and physical and mechanical properties that cannot be obtained by traditional casting processes, such as controllable porosity, uniform material structure, no macro-segregation (the macro-flow of liquid alloy after solidification will not lead to uneven chemical composition in different parts of the cross-section), and can be molded at one time. The materials of powder metallurgy structural parts can be divided into powder metallurgy antifriction materials, powder metallurgy porous materials, powder metallurgy structural materials, powder metallurgy friction materials, powder metallurgy tool mold materials, powder metallurgy electromagnetic materials, powder metallurgy high temperature materials, etc. according to different uses. Different materials can be used in different occasions.

The material of cast iron parts is mainly iron-carbon alloy, according to the fracture color can, gray cast iron, hemp cast iron, according to the chemical composition can be divided into alloy cast iron, ordinary cast iron, according to the production method and organizational properties can be divided into ordinary gray cast iron, malleable cast iron, ductile iron, inoculated cast iron, special performance cast iron. Each material has different properties.

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