Electric-plastic wide band rolling device
An electro-plastic and wide-band technology, applied in rolling mill control devices, metal rolling, metal rolling, etc., to improve the cold rolling capacity, optimize the constitutive relationship, and improve the plastic deformation capacity.
Active Publication Date: 2019-02-19
YANSHAN UNIV
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Problems solved by technology
At present, no related inventions of conductive rollers have been found to be applied to electroplastic rolling devices
Method used
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[0043] The processing material is annealed 304 stainless steel, the width is 100mm, the thickness is 0.5mm, and the reduction of each pass is 0.1mm.
[0044] refer to figure 1 Referring to Fig. 9, refer to the experiment of rolling 5 strips in a four-roll reversing mill as an example, including left reel 1, right reel 17, guide rollers 3 and 16, tension rollers 4 and 15, conductive rollers 5 and 6, and conductive roller 13 And 14, between the left and right conductive rolls is a pair of designed conductive work roll groups, the upper roll group is composed of the upper backup roll and the upper work roll, and the lower roll group is composed of the lower backup roll and the lower work roll. The guide roller 3 is used to adjust the strip material released from the left reel 1 to cross the tension roller 4, pass through the conductive rollers 5 and 6 and enter the roll group, the conductive rollers 13 and 14, the tension roller 15, the guide roller 16 and the right reel 17 are u...
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Abstract
The invention discloses an electric-plastic wide band rolling device which comprises pulse power sources, embedded electric conduction block work rollers, movable electric conduction rollers and an intelligent electric-plastic measurement and control system. Electric conduction blocks contribute to transverse uniform current distribution of a cold-rolled wide band. The intelligent electric-plasticmeasurement and control system contributes to online automatic adjustment of electric-plastic parameters. In the rolling process, firstly, the intelligent electric-plastic measurement and control system sets the pulse current density, the frequency, the pulse width and other electric parameters according to rolling parameters, and meanwhile the distance between the left and right electric conduction rollers and the work rollers is automatically adjusted; after band penetrating and expanding, low-speed rolling is started, electric pulses are started synchronously, electric-plastic rolling is carried out, and speed increase rolling is carried out after the parameters are stable; and when operation is carried out close to the band tail, in the speed decrease process, electric parameter changes are monitored in real time, and the pulse power sources are turned off in time before shutdown. According to the electric-plastic wide band rolling device, pulse current distribution in the cold-rolled wide band is strengthened and homogenized, the electric parameters are optimized and adjusted in real time according to the rolling parameters, optimal application of the electric-plastic effectis achieved, and the plastic deformation capacity in the cold rolling process is improved.
Description
technical field [0001] The invention relates to the field of plastic processing of rolling machinery and equipment, in particular to an electroplastic wide-band rolling device suitable for hard-to-deform wide bands such as high-grade alloy strips and superhard materials. Background technique [0002] The rapid development of new materials has largely promoted industrial progress and technological innovation, and subsequently put forward higher requirements for processing equipment and production technologies for new materials, especially high-strength and high-hardness alloys or brittle and difficult-to-deform metal materials, such as super High-strength steel, magnesium alloy, titanium-nickel alloy, and alloy strips such as tungsten, molybdenum, and rhenium have the common characteristics of difficult cold rolling, poor plasticity, and prone to problems such as uneven deformation, edge cracking, difficult elongation, and severe work hardening. Hot rolling will lead to probl...
Claims
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IPC IPC(8): B21B1/22B21B37/00
CPCB21B1/22B21B37/00B21B2001/225
Inventor 杨利坡刘耕良商好强张海龙张永顺于华鑫
Owner YANSHAN UNIV