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Oversized thin plate rolling device and molybdenum thin plate rolling method

A technology of super-large specifications and rolling equipment, which is applied in the direction of metal rolling, metal rolling, metal processing equipment, etc., can solve problems such as large safety risks and potential safety hazards, rising production costs, and increased heating furnace specifications, and achieve improvement Effects of mass, scale-up, and avoidance of constraints

Inactive Publication Date: 2018-06-29
JINDUICHENG MOLYBDENUM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Even if a large-scale heating furnace is used to heat the molybdenum sheet, the length of the molybdenum sheet is usually 3m to 4m. If the length of the molybdenum sheet is to be further increased, the required size of the heating furnace must be increased accordingly, and the production cost will rise sharply. , the larger the size of the heating furnace, and the repeated opening and closing of the furnace door at high temperature, the greater the corresponding safety risks and potential safety hazards

Method used

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  • Oversized thin plate rolling device and molybdenum thin plate rolling method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Such as figure 1 An ultra-large-size sheet rolling equipment is shown. The equipment includes a six-high reversible rolling mill 1. The entrance side and the exit side of the six-high reversible rolling mill 1 are respectively provided with first transport roller tables 2-1 for transporting plates 7 And the second transport roller table 2-2, the first transport roller table 2-1 near the entrance side of the six-high reversible rolling mill 1 is provided with a first heating zone 4-1, and the first transport roller table 2-1 close to the exit side of the six-high reversible rolling mill 1 A second heating zone 4-2 is provided on the second transportation roller 2-2, and a heating device 3 for heating the plate 7 is installed directly above the first heating zone 4-1 and the second heating zone 4-2, The first coiler 5-1 is installed at a position close to the first transport roller 2-1, the second coiler 5-2 is installed at a position close to the second transport roller 2...

Embodiment 2

[0031] Step 1. Place the molybdenum sheet on the first transportation roller 2-1, and then weld the two ends of the molybdenum sheet with the first lead 6-1 and the second lead 6-2 respectively; the molybdenum sheet The length is 3.8m, the thickness is 4.8mm, and the mass is 208kg;

[0032] Step 2: Turn on the heating device and adjust the heating temperature to 400°C, and then turn on the first coiler 5-1 and the second coiler 5-2 at the same time to make the second coiler wound on the second coiler 5-2 Belt 6-2 pulls the molybdenum sheet through the first transport roller 2-1 into the first heating zone 4-1 for heating. The heated molybdenum sheet enters the six-high reversible rolling mill 1 for rolling, and then enters the second heating zone 4- 2 Heating to complete one rolling; the rotation direction and rotation speed of the first coiler 5-1 and the second coiler 5-2 during the one-time rolling process and the rolling direction of the six-high reversible rolling mill 1, T...

Embodiment 3

[0036] Step 1. Place the molybdenum sheet on the first transportation roller 2-1, and then weld the two ends of the molybdenum sheet with the first lead 6-1 and the second lead 6-2 respectively; the molybdenum sheet The length is 3.6m, the thickness is 4.65mm, and the mass is 212kg;

[0037] Step 2. Turn on the heating device and adjust the heating temperature to 450°C, and then turn on the first coiler 5-1 and the second coiler 5-2 at the same time, so that the second coiler wound on the second coiler 5-2 Belt 6-2 pulls the molybdenum sheet through the first transport roller 2-1 into the first heating zone 4-1 for heating. The heated molybdenum sheet enters the six-high reversible rolling mill 1 for rolling, and then enters the second heating zone 4- 2 Heating to complete one rolling; the rotation direction and rotation speed of the first coiler 5-1 and the second coiler 5-2 during the one-time rolling process and the rolling direction of the six-high reversible rolling mill 1, ...

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Abstract

The invention discloses an oversized thin plate rolling device, which comprises a six-roller reversible mill; an inlet side and an outlet side of the a six-roller reversible mill are evenly distributed with transporting roller paths, and heating zones are arranged on the transporting roller paths; upper parts of the heating zones are equipped with heating devices, and a recoiling machine is installed at the position closing to the transporting roller paths, and a leading tape is coiled on the recoiling machine; the heating zones are arranged on the transporting roller paths at inside and outsides of the six-roller reversible mill. The device solves the problem of limited plate dimension by the heating furnace dimension in annealing after rolling the plate, and is suitable for rolling the oversized thin plate. The invention provides an oversized molybdenum thin plate rolling method. By using the recoiling machine, a molybdenum plate is moved between the heating zones and the six-rollerreversible mill through the transporting roller paths, so as to heat, roll and anneal; through changing the rotating direction of the recoiling machine and the rolling direction of the six-roller reversible mill, the repeat heating, rolling and annealing are realized, the plasticity of the molybdenum plate is improved, and the specification of the molybdenum plate after being rolled is enlarged.

Description

Technical field [0001] The invention belongs to the technical field of target material preparation, and specifically relates to an ultra-large specification sheet rolling equipment and a molybdenum sheet rolling method. Background technique [0002] Rolling is a processing method in which a metal blank is passed through the gap between rotating rolls, and the metal blank is compressed to produce plastic deformation, so as to obtain a product of the desired shape, size and performance. During the rolling process, the internal grains of the metal billet are elongated and deformed along the rolling direction. When the plasticity of the metal billet is poor, its internal grains are easy to crack, cracks appear on the surface and the interior of the metal billet, and even breakage. Usually, the plasticity of the metal billet is increased by high temperature heating before rolling. In actual production, it is necessary to repeatedly heat and anneal during the rolling process to ensure...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B1/34B21B15/00C22F1/18
CPCB21B1/34B21B15/00B21B2001/386B21B2015/0057C22F1/18
Inventor 张焜任宝江曾毅付小俊刘宏亮卢中友张怡党永平白蒙孙刚涛
Owner JINDUICHENG MOLYBDENUM CO LTD
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