Hydraulic tension warm-rolling machine

A technology of hydraulic tension and warm rolling mill, which is applied in the direction of rolling mill control device, tension/pressure control, metal rolling, etc. It can solve the problems of not considering the heating of metal strips and the inability to warm rolling of metal strips, and reduce the cost of experiments , the effect of saving experimental materials

Inactive Publication Date: 2014-11-19
NORTHEASTERN UNIV
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

The experimental rolling mill solves the problem of applying tension to a single metal strip sample through a tension dev

Method used

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Embodiment

[0033] Taking the tension warm rolling of a magnesium alloy strip as an example, the experimental process of utilizing the hydraulic tension warm rolling machine of the present invention will be described below.

[0034] Main parameters of hydraulic tension warm rolling mill equipment:

[0035] Support roll: Φ480×350 mm, working roll: Φ200×370 mm;

[0036] Left and right tension hydraulic cylinder: stroke 2000mm, MOOG servo valve D661;

[0037] Press down cylinder: stroke 80mm, MOOG servo valve D761;

[0038] Hydraulic clamp: the maximum thickness of the sample that can be clamped is 10mm, and the maximum width is 300mm;

[0039] Work roll transmission, the main motor is a 150kW DC motor;

[0040] The power of the transformer is 100kW, the maximum output voltage of the secondary side is 20V, the maximum heating current is 5000A, and the connecting cables are 4 pieces of 185mm 2 copper cable;

[0041] The high pressure of the hydraulic system is 23.5MPa, the medium pressur...

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Abstract

The invention discloses a hydraulic tension warm-rolling machine which comprises a four-roller reversible mill, tension devices distributed on the two sides of the four-roller reversible mill, a sample heating device, a hydraulic system and an electric control system. According to the hydraulic tension warm-rolling machine, the tension devices are used for exerting tension on samples, the samples are heated online in a resistance heating mode, through a power adjustment control unit and closed-loop control over the heating temperature, different metal strips which are not prone to deformation at normal temperature can be subjected to strip tension rolling experiments within the temperature range from indoor temperature to 800 DEG C, and technical conditions are created for developing different warm-rolling technologies and industrially producing metal thin strips which are not prone to deformation at normal temperature; the samples are single metal strips, compared with a traditional winding type rolling mill, experiment materials can be saved, and experiment cost is lowered.

Description

technical field [0001] The invention relates to metal strip rolling, in particular to a hydraulic tension warm rolling mill for rolling a single metal strip by on-line heating and applying tension. Background technique [0002] As we all know, for metal materials that are difficult to deform at room temperature, the preparation process is usually complicated. [0003] Taking high-silicon electrical steel among ferrous metals as an example, its plasticity at room temperature is almost zero, and it is difficult to process it into thin sheets required for use. At present, only the CVD method (chemical vapor deposition silicon infiltration method) of JFE Company in the world has realized the industrial scale production of high-silicon electrical steel thin strip. However, this method has the disadvantages of long process flow, heavy environmental burden, low production efficiency and high cost. Improving the plastic deformation ability of high-silicon electrical steel by heati...

Claims

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Application Information

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IPC IPC(8): B21B1/32B21B37/00B21B37/48B21B37/74
Inventor 李建平孙涛花福安牛文勇王贵桥
Owner NORTHEASTERN UNIV
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