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Hot roller warm-rolling device and method for metal plates and strips

A technology of metal strips and heating devices, applied in metal rolling, metal rolling, metal processing equipment, etc., to achieve the effects of low cost, good application prospects, and convenient operation

Inactive Publication Date: 2011-09-14
NORTHEASTERN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problems in the rolling technology of existing metal sheets and strips, the present invention provides a hot roll warm rolling device and method for metal sheets and strips. By heating the rolls, the rolling process is in a state of elevated temperature and is easier to control. Especially in the processing of difficult-to-machine metal sheets and strips to improve plastic deformation capacity and stability

Method used

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  • Hot roller warm-rolling device and method for metal plates and strips
  • Hot roller warm-rolling device and method for metal plates and strips
  • Hot roller warm-rolling device and method for metal plates and strips

Examples

Experimental program
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Effect test

Embodiment 1

[0024] The size of the upper and lower rolls of the two-roll strip mill used is Φ180mm×300mm, the material of the rolls is 9Cr2Mo forged steel, the rolling force of the rolling mill is 50 tons, and the rolling speed is controllable;

[0025] The structure of the hot rolling and warm rolling device for metal plates and strips is as follows: figure 1 As shown, the side-view local structure is as figure 2 As shown, the two-roll rolling mill includes an upper roll 1 and a lower roll 2; a metal pipe frame is respectively provided at a close distance between the two rolls, and the metal pipe frame is composed of two symmetrically arranged metal pipe groups and a connecting pipe; each metal The pipe group is composed of upper collecting pipe, lower collecting pipe and multiple arc-shaped metal pipes;

[0026] In the metal pipe rack on the outer side above the upper roller 1, the first arc-shaped metal pipe 4-3 of the upper roller, the first upper collecting pipe 4-1 of the upper ro...

Embodiment 2

[0044] The roll material of the two-roll strip mill is chilled cast iron;

[0045] The structure of the hot roll warm rolling device of metal plate and strip is the same as embodiment 1, and the difference is:

[0046] (1) The radian of each arc-shaped metal tube is 125°, and the distance between adjacent arc-shaped metal tubes in each metal tube group is 4mm; the distance between the metal tube group and the roll surface is 10mm; The inner diameter of the tube is 12mm and the wall thickness is 1.5mm;

[0047] (2) The width of each metal tube group is 90% of the axial length of the roll;

[0048] Adopt above-mentioned device to carry out the hot roll warm rolling of metal sheet and strip; The material of the metal sheet and strip raw material that adopts is TC4 titanium alloy, and the thickness of material is 2.5mm, and width is 130mm, and length is 300mm;

[0049] When rolling TC4 titanium alloy, the surface temperature of the roll is 865±5°C, the thickness of the titanium ...

Embodiment 3

[0051] The two-roll strip mill that adopts is the same as embodiment 1,

[0052] The structure of the hot rolling and warm rolling device of metal plate and strip is the same as that of embodiment 1, the difference is that:

[0053] (1) The arc of each arc-shaped metal tube is 130゜, and the distance between adjacent arc-shaped metal tubes in each metal tube group is 5mm; the distance between each arc-shaped metal tube and the surface of the roll is 20mm; the arc The inner diameter of the shaped metal tube is 12mm, and the wall thickness is 1.5mm;

[0054] (2) The width of each metal tube group is equal to the axial length of the roll;

[0055] Adopt above-mentioned device to carry out the hot roll warm rolling of metal sheet and strip; The material of the metal sheet and strip raw material that adopts is Mo-1 molybdenum; The thickness of material is 2.5mm, and width is 135mm, and length is 300mm;

[0056] When rolling molybdenum, the roll surface temperature is 835±5°C, the ...

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Abstract

The invention discloses a hot roller warm-rolling device and a hot roller warm-rolling method for metal plates and strips, and belongs to the technical field of steel rolling. A heating device is arranged near each roller of a double-roller mill, and consists of two symmetrically arranged metal pipe bundles and a connecting pipe; and each metal pipe bundle consists of an upper header pipe, a lower header pipe and a plurality of arc metal pipes, is provided with a water inlet and a water outlet and is connected with two electrodes of an alternating-current power supply. The method comprises the following steps of: applying alternating current to the metal pipe bundles through the alternating-current power supply, starting rollers, and heating the surfaces of the rollers to the temperature of between 200 and 900DEG C through magnetic field induction; introducing water into the arc metal pipes; and feeding the metal plates and strips into the rollers for rolling. The device and method are particular suitable for rolling difficultly processed metal materials; the difficultly processed metal plates and strips are plates and strips made of high silicon steel, magnesium, magnesium alloy,titanium, titanium alloy, molybdenum, molybdenum alloy or Martensitic stainless steel; and the device and the method have good effect of rolling the plates and strips made of the materials.

Description

technical field [0001] The invention belongs to the technical field of steel rolling, and in particular relates to a hot-rolling and warm-rolling device and method for metal plates and strips. Background technique [0002] With the improvement of the manufacturing level of steel rolling equipment, rolling technology is developing towards automation, high speed and intelligence, and the production efficiency and product quality control level of steel rolling are getting higher and higher. The technical problems of the continuous production process of ordinary steel, ferritic stainless steel, low-silicon non-oriented silicon steel and other special steels have been solved; in view of the problems of large deformation resistance and poor plasticity of some metal materials in the cold rolling process, the traditional Warm rolling process method; the traditional warm rolling process method is to heat the rolled piece below the recrystallization temperature on a hot rolling mill o...

Claims

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Application Information

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IPC IPC(8): B21B1/26B21B27/10
Inventor 李长生
Owner NORTHEASTERN UNIV
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