Drawn tube mould manufacturer small make up to tell you the types of roll
A wide variety of roll, basically has the following categories:
(1) cast iron roll. General classification according to the manufacturing process: work layer of metal mold chilling effect was chilling organization + carbide (matrix) of the roll call chilled cast iron roll; Using the above method, but raise the molten iron carbon equivalent and get mottled organization + + carbide graphite (matrix) of the roll call infinite chilled cast iron roll. "Infinite" - English word comes from "indefinite", meaning "not clear", refers to the chilling layer there is no clear boundaries, fracture was mistranslated as "unlimited", has now turned in use. By sand lined metal mold and continue to increase the carbon equivalent available tow tissue roll, said half a chilled cast iron roll. In all the varieties of organization of graphite spheres, called nodular cast iron roll; Composite casting roll and the word "complex".
(2) cast steel roll. According to carbon content commonly: high carbon hypereutectoid steel roll (1.4 ~ 2.4%), commonly known as half steel roll, half of the high carbon steel roll actually already stretched out into the field of cast iron; High carbon hypereutectoid steel roll and those for graphitic steel roller, the graphite is achieved through inoculation and heat treatment.
(3) forged steel roll. Generally classified according to the use.
(4) the other. In addition to the use of special processing technology, directly to the material name. Such as electric slag making billet casting forging press roll is called electroslag remelting forging press roll.
For most of the work roll core and the surface have different performance requirements. When using a single material is difficult to meet the requirements, both inside and outside layer can be made from two materials respectively. Composite process can use mechanical combination, composite casting and other cladding technology. Surfacing technology commonly used repair roll.
Scan two-dimensional code attention