Indium strip rolling method

Abstract

The invention provides an indium strip rolling method. Conventional indium ingots are used as raw materials for electrolysis refining to refine fine indium; the fine indiums with qualified surface quality are selected for blooming rolling; blooming rolling is to roll the fine indium as indium plates with thicknesses of 2 mm through multi-pass step-by-step rolling; rolling oil is added on the indium plates in each-pass rolling process; the surfaces of the indium plates prepared by blooming rolling are cleaned for finish rolling; the finish rolling is to roll the indium plates as indium strips with thicknesses of 0.1 mm through multi-pass step-by-step rolling; rollers are cleaned after every several rolling passes in the finish rolling process; the finish-rolled indium strips are annealed; and the edges of the indium strips are tidily shorn by a plate shearing machine. The purity of the fine indium is improved through optimal selection of electrolytic extracting technology process parameters; and blooming rolling is combined with multi-pass rolling process in the finish rolling process, so that the hot bonding phenomenon of rolled parts and the rollers is not easy to occur in the rolling process, and the rolled indium strips are smooth without such defects as rolling marks and scratches on the surfaces.

Description

technical field [0001] The invention belongs to the technical field of indium material processing, and in particular relates to an indium strip rolling method. Background technique [0002] Indium is a silver-white metal with a bluish tint. It has a soft texture, similar to platinum, and even softer than lead. It can scratch nails, adhere to other metals when rubbed, and remain soft in a liquid state. Indium is also similar to tin in that pure indium can squeal when bent. Indium has low melting point, high boiling point, excellent thermal conductivity and good ductility. It has a face-centered tetragonal crystal structure and is the only metal with a tetragonal structure and 7% of it deviates from the face-centered cubic structure. Therefore, through mechanical The generation of twins can make it deform without showing the face-centered cubic structure, so it has plasticity. Metal indium does not produce work hardening during cold working, and can be pressed into extremely...

AI Technical Summary

Problems solved by technology

However, during the processing of the existing indium strip, the raw material precision of the indium material is low, and due to the imperfect rolling process, it is easy to cause the rolled piece to stick to the roll, resulting in difficult processing