What is the material of aluminum foil roll?
There are two kinds of roll, divided heat roll and cold roller.The rolls used in common cold rolls include 9Cr, 9Cr2,9Crv, 8CrMoV and so on. The cold rolls require surface quenching and the hardness is HS45~105. Hot rolling rolls are commonly used materials such as 55Mn2,55Cr, 60CrMnMo, 60SiMnMo and so on. The hot rolling rolls are used in the processing of cogging, heavy plate and shaped steel. It's under the powerful influence of rolling force, severe wear and thermal fatigue, and hot roll work under high temperature, and allows the unit to wear within the diameter of workload does not require, so the surface hardness, only has a high strength, toughness and heat resistance. The hot rolling roller only adopts the whole normalizing or quenching, and the surface hardness demands HB190~270.
Aluminum foil roll is a kind of common rollThe roll is an important part of a rolling mill on a steel mill, rolled and rolled by the pressure produced by rolling a pair or a set of rolls. It is mainly affected by static and dynamic loads, wear and temperature changes during rolling.According to the general manufacturing process, due to the chilling effect of metal layer is white tissue (substrate + carbide) roll called chilled cast iron roll; with the above method, but increasing the iron carbon equivalent and mottled structure (substrate + carbide + graphite) roll called infinite cold and hard cast iron roll."Infinity" - derived from the English word "indefinite", is originally defined as "indefinite". It means that the quench layer has no definite boundary on the fracture surface and has been misinterpreted as "infinite". By using the sand lined metal mold and continuing to increase the carbon equivalent, the roll of coarse hemp can be obtained, which is called semi chilled cast iron roll. In all the tissues of the above-mentioned varieties, the graphite is spherical, called the spheroidal graphite cast iron roll, and the compound cast roller is compounded with the word "compound".
