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◆ SUMMARY
It is a kind of cast iron roll with acicular (Bainitie-Martensite) matrix in its microstructure, and made from high alloy materials of Ni, Mo with special heat treatment.
It is shaped by Centrifugal Casting Machine, or by gravity casting. |
◆ DESCRIPTION
It is necessary for rougher roll that a combination of some properties such as strength, hardness, toughness and wearability at high temperature, as well as resistance of fire cracking and impact. Bainitie / Martensite (acicular) matrix is helpful to improve integrative properties.
Carbide content in the matrix is less than 5%, which is satisfactory to the requirement of roughers.
◆ APPLICATION
◇ Rougher of bar, rod, wire mills.
◆ MECHANICAL PROPERTIES
|
Symbol |
Hardness (HS) |
Tensile strength (MPa) |
Bending strength (MPa) |
|
NCC1 |
40~50 |
≥520 |
970~1380 |
|
NCC2 |
50~60 |
NON-CONTINUOUS CARBIDE ROLLS
