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Production process for high-quality high-finish titanium and titanium alloy sheet or belt

A high-gloss, titanium alloy plate technology, applied in metal rolling and other directions, can solve the problems of oxide layer generation, removal of oxide layer and low production quality, and achieve the effect of reducing damage, eliminating unsafe factors, and improving finish

Inactive Publication Date: 2010-06-23
常荣波
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  • Summary
  • Abstract
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Problems solved by technology

[0004] The purpose of the present invention is to provide a high-quality high-gloss titanium and titanium alloy plate and strip production process, to solve the problems of oxide layer generation and removal in the strip production process and low production quality, and to improve the quality of titanium plate in the production process. , The smoothness of the strip to reduce the subsequent processing

Method used

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Embodiment Construction

[0008] The production process of high-quality and high-gloss titanium and titanium alloy plates and strips is carried out in accordance with the following process: glass powder is added with water to form a paste, then wrapped with electric furnace or power frequency induction furnace for heating-hot rolling-polishing or mechanical planing Light descaling----cold rolling----vacuum annealing----polishing----cold rolling---polishing to mirror finish. A 5-30% processing allowance should be reserved during the first cold rolling, and the smoothness of the cold rolling rolls is required 7 to Between 14.

[0009] In addition, according to the different requirements of different materials, the process after vacuum annealing can be replaced by the following process:

[0010] ----leveling----finished product----inspection----warehousing, or-polishing or sandblasting----cold rolling----leveling----finished product---- Inspection----warehousing; or-cold rolling----leveling----finish...

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Abstract

The invention relates to a production process of a high-quality high-finish titanium and titanium alloy sheet or belt, which is carried out according to the following flow: heating after coating glass powder, hot rolling, polishing by a polishing machine, rolling in cold and reserving 5-15% machining allowance, vacuum annealing, polishing, rolling in cold and polishing to a mirror surface. In the invention, a general atmosphere furnace or electric furnace in the annealing process of the rolling process of the original technology is changed into a vacuum furnace or cover-type furnace and certain coating protection is carried out on the surface, after 5-10% of machining allowance is reserved, preannealing is carried out in advance, and then mill machining and leveling of the final one pass are carried out. The accuracy of the obtained machined sheet is increased by 5%-20% and the degree of finish is improved by 5%-50%.

Description

technical field [0001] The invention belongs to the technical field of material processing, in particular to the processing of titanium plates and strips. Background technique [0002] At present, the main process of processing titanium and titanium alloy plate or strip is: heating - hot rolling - alkali explosion - pickling - cold rolling - annealing - acid and alkali cleaning. Due to the high activity of titanium and titanium alloys, they will react with elements such as hydrogen and oxygen in the atmosphere after heat treatment, resulting in oxidation. In the existing process, the higher the temperature and the longer the heating time, the thicker the oxide layer will be. In severe cases, the oxide layer will be detached. The method of removing the oxide scale from the traditional process board and strip is to use soda ash to heat it to 300 degrees after boiling. , using the corrosiveness of high-temperature alkali to remove the thicker oxide layer on the surface of tita...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P17/00B21B1/30C22F1/18
Inventor 常荣波
Owner 常荣波
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