Machining and assembling method of casting and rolling roller for aluminum alloy casting and rolling

Abstract

The invention provides a machining and assembling method of casting and rolling roller for aluminum alloy casting and rolling. The method comprises the following steps that firstly, an outer circle ofa roller core is machined; secondly, the average outer diameter size of the roller core is calculated; thirdly, the inner diameter target size of a roller sleeve is determined; fourthly, an inner circle of the roller sleeve is machined; fifthly, heat assembling is carried out; and sixthly, the rolling roller is machined. According to the method, the outer diameter size of the steel roller core can be measured accurately, the final machining size of the inner diameter of the roller sleeve is calculated scientifically according to the environment temperature factor, and the situation that due to the fact that the roller core and the roller sleeve are in different environment temperatures, inaccuracy of interference magnitude control is caused, and the assembling quality is influenced can beeffectively avoided. The surface roughness is selected reasonably, the assembling precision is ensured, and the machining cost is controlled reasonably. In combination with the heat assembly technology, it can be ensured that after heat assembly, during the casting and rolling production, the roller sleeve does not slide to influence normal production, the roller sleeve can be protected against damage to the greatest extent, the service life is prolonged, and maximization of benefit is achieved.

Description

technical field [0001] The invention belongs to the technical field of aluminum alloy casting and rolling, and relates to a processing and assembling method of a casting roll for aluminum alloy casting and rolling. Background technique [0002] The casting roll is the main part of the continuous casting and rolling equipment for the production of aluminum and aluminum alloy slab coils. The casting roll is composed of a roll core and a roll sleeve. The matching method assembles the roller sleeve and the roller core together. The most important process parameter in the shrink-fitting process is the amount of interference, which is calculated and selected according to the material of the roller sleeve, the size of the transmitted torque, and the minimum thickness of the roller sleeve. If the interference is too small, there will be a large relative movement between the roll sleeve and the roll core during rolling, which will affect the stability of the rolling process and is e...

AI Technical Summary

Problems solved by technology

If the roller sleeve is scrapped due to reasons such as poor plate shape, roll sleeve burst, roll sleeve penetration crack, and serious defects in the middle of the roll sleeve, it will cause great losses to the enterprise, resulting in many of the above serious consequences. Among the influencing factors, the unscientific and unreasonable assembly process of the roller sleeve and the roller core is the main reason

[0004] Through the analysis and study of the casting roll sleeve assembly process of various aluminum processing plants, the research found that there are common problems in domestic factories that the size measurement of roll sleeve and roll core is not rigorous, the interference setting is unscientific, and the roughness and heating insulation process are unreasonable. , the service life of the roller sleeve is short, the throughput is low, and the cost of the roller sleeve remains high. The present invention proposes a new method for the above problems, which effectively ensures the assembly quality of the roller sleeve