Roll cooling method for rolling of composite metal and special cooling device

Abstract

The invention provides a roll cooling method for rolling of composite metal, for solving the problem that the composite effect of two types of metal is easy to be affected in the process of cooling rolls by emulsion or rolling oil. Blind-hole channels are arranged on an upper roll and a lower roll of a rolling mill along the center axes of the rolls; cooling water pipes with outside diameter smaller than inside diameter of the blind-hole channels are disposed in the blind-hole channels; cooling pressure water is delivered into the cooling water pipes, flows out of the tail ends, at the bottoms of blind-hole channels, of the cooling water pipes, and returns to areas between the outer walls of the cooling water pipes and the inner walls of the blind-hole channels so as to dissipate heat of the rolls. The invention further provides a special cooling device. Through holes are formed in bearing end caps at the ends of inlets of the blind-hole channels arranged along the center axes of the rolls, rotary joints are respectively connected with water inlet pipelines, the through holes and return pipelines, the cooling water pipes are mounted in axial channels formed by the blind-hole channels, the through holes and the rotary joints which are communicated in sequence, and the inside diameter D1 of the blind-hole channels, the aperture D2 of the through holes and the aperture D3 of the rotary joints are all larger than the outside diameter d1 of the cooling water pipes.

Description

technical field [0001] The invention relates to the field of composite metal material processing equipment, in particular to a roll cooling method and cooling device for composite metal material rolling. Background technique [0002] Generally, a large amount of emulsion or rolling oil is required to cool the roll and control the shape of the strip in the ordinary plate rolling process, but if the emulsion or rolling oil is still used to cool the roll and control the plate The shape of the strip will seriously affect the composite effect of the two metal materials, resulting in a low pass rate of the composite metal material. Contents of the invention [0003] In view of the problems referred to above, the present invention provides a kind of roll cooling method that is used for composite metal material rolling, and it can solve adopting existing emulsion or rolling oil to cool the problem that roll easily influences the composite effect of two kinds of metals; For this re...

AI Technical Summary

Problems solved by technology

[0003] In view of the problems referred to above, the present invention provides a kind of roll cooling method that is used for composite metal material rolling, and it can solve adopting existing emulsion or rolling oil to cool the problem that roll easily influences the composite effect of two kinds of metals; For this reason, The invention also provides a special cooling device

Images