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Zirconium plate cold rolling machining method

A processing method and technology for zirconium plates, applied in metal processing equipment, metal rolling, manufacturing tools, etc., can solve the problem of low output of zirconium plates and zirconium strips, improve process lubrication performance, reduce friction coefficient, and increase oil film strength Effect

Inactive Publication Date: 2019-03-15
宝鸡市华烨钛镍金属有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing production process is as follows: after the hot-rolled blank is pickled on the surface, it is rolled to a longer thin sheet that can be annealed and pickled, and then rolled into a coil with high thickness accuracy and high surface quality. However, the output of zirconium plates and zirconium strips is not high

Method used

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Embodiment Construction

[0019] The following specific embodiments describe the present invention in detail.

[0020] A zirconium plate cold rolling processing method, comprising the following steps:

[0021] Step 1: rough rolling

[0022] Select the surface-treated zirconium slab, heat it to 180°C on a resistance heater before rolling, and gradually roll the zirconium slab into a rough-rolled zirconium plate with a thickness of 0.7 mm through multiple passes;

[0023] Step 2: Finish rolling

[0024] Perform intermediate annealing on the rough-rolled zirconium plate described in step 1, then polish and pickle the surface of the rough-rolled zirconium plate and perform a finish rolling, and gradually roll the rough-rolled zirconium plate to 0.4mm through multiple passes Thick primary zirconium plate;

[0025] Step 3: Second finishing rolling

[0026] Perform intermediate annealing on the primary finish-rolled zirconium plate described in step 2, then polish and pickle the surface of the annealed pr...

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Abstract

The invention discloses a zirconium plate cold rolling machining method. The method includes rough rolling, first-time finish rolling, second-time finish rolling and three-time finish rolling, so thata zirconium plate with uniform structure and uniform performance is obtained; transformer oil or white oil is adopted for lubrication in the rolling processes of the rough rolling, the first-time finish rolling, the second-time finish rolling, and the three-time finish rolling, the thus the process lubrication performance can be improved, the oil film strength in a deformation area can be increased, the friction coefficient is reduced, the hot sticking phenomenon between a to-be-rolled piece and a roller is not easy to occur, and the functions of cleaning and flushing are achieved.

Description

technical field [0001] The invention belongs to the technical field of calendering and rolling of nonferrous metals, and in particular relates to a zirconium plate cold rolling processing method. Background technique [0002] The melting point of zirconium material is as high as 1852°C, and it has ultra-high hardness and strength. It has a tendency to rebound when deformed, and it is prone to cracks caused by nicks. At the same time, zirconium material has a tendency to bite. Zirconium material is an internationally sensitive strategic material and is a controlled material. The zirconium production line is the material basis for the development of nuclear energy. The "sponge zirconium" extracted through a complex smelting process is then melted and pressed into small pieces of zirconium plate blanks, and then rolled into various products through appropriate pressure processing methods, which are used in nuclear fuel assemblies or general industrial fields. Zirconium plates...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B1/22B21B45/02
CPCB21B1/22B21B45/0251B21B2001/225
Inventor 石璋
Owner 宝鸡市华烨钛镍金属有限公司
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