A casting method for the inlaid production of centrifugal composite sleeves for wire rod rolls

Abstract

The invention relates to a casting method of insetting making of a centrifugal composite sleeve for a winding bar roller, and the method comprises the following steps: 1, the selection of outer layer materials of a centrifugal bilayer composite sleeve, to be more specific, respectively using four materials of boron-containing high-speed steel, high chromium cast iron, Cr4, bainite globular graphite centrifugal composite I as centrifugal bilayer composite sleeve outer layers; 2, the selection of inner layer materials of the centrifugal bilayer composite sleeve, to be more specific, respectively using four materials of ZG270-500, globular graphite cast iron, graphite steel and 16Mn as centrifugal bilayer composite sleeve inner layers; 3, mating of the inner and outer layer materials, to be more specific, using a computer for simulation of pairwise coupling deformation curves of the eight kinds of materials of the centrifugal bilayer composite sleeve outer layers and the centrifugal bilayer composite sleeve inner layers at 300 DEG C, 650 DEG C and 1050 DEG C temperature sections, and determining the inner and outer layer materials with relatively close deformation at 300 DEG C to match to use as outer and inner layers of the centrifugal bilayer composite sleeve; 4, determining of the composition range of the inner and outer layers of the centrifugal bilayer composite sleeve; and 5, casting of the centrifugal bilayer composite sleeve. The method has the advantages of being simple in operation, economical and practical.

Description

technical field [0001] The invention relates to the technical field of production of wire rod rolls, in particular to a casting method for making wire rod rolls inlaid with centrifugal composite sleeves. Background technique [0002] Finished wire rod rolling rolls are a type of rolls that are used in large quantities and require high requirements in new-type rod and wire rolling mills. Under the rolling conditions of high speed, low temperature, and multi-groove impact, the finished wire rod rolls frequently suffer from blockage and groove collapse accidents. Be the roll with the most problems. The average rolling speed of 40 seconds per billet makes the rolling mill pay more attention to the quality of finished rolls. Its use effect not only affects the single-shift rolling output of the rolling mill, but also affects the appearance quality of rolled products, which determines the quality of the product. The output rate determines the economic benefits of the rolling mill...

AI Technical Summary

Problems solved by technology

A problem with one roll groove makes the adjacent groove or even the entire roll surface unusable, reducing the normal use frequency of the roll or scrapping it early, and putting the roll factory under additional economic pressure

[0004] From this, it can be judged that the existing rolls can no longer meet the requirements of modern high-speed wire rod mills simply by adding alloys. It is necessary to redesign the material formula of the new roll body to meet the existing rolling requirements.

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