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Suppressing method for loading rollers at height

A wire-mounted roll and high-pressure cavity technology, applied in metal rolling, metal rolling stands, manufacturing tools, etc., can solve the problems of high price of tungsten carbide roll rings, high roll explosion rate, and large losses, and achieve feasibility and The effect of strong generalization, low burst rate and production cost saving

Active Publication Date: 2013-04-03
JIANGSU YONGGANG GROUP CO LTD
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AI Technical Summary

Problems solved by technology

In the production process, it is easy to lose pressure, and the roll burst rate is high, and the tungsten carbide roll ring used in the high-end line is expensive, and the loss after the roll burst occurs is large.

Method used

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  • Suppressing method for loading rollers at height

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Experimental program
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Effect test

Embodiment 1

[0014] A kind of pressing method of high-line loading roller provided in this embodiment, the structure of its realization device is as follows: figure 1 As shown, the method includes the first pressing and the second pressing.

[0015] The first crackdown includes the following steps:

[0016] (1) The pressing trolley delivers a low pressure of 15-18Mpa to the low-pressure cavity 3, and exerts pressure on the roller ring 1 to make the roller ring 1 fall in place.

[0017] (2) The pressing trolley delivers a high pressure of 45Mpa to the high-pressure cavity 4, and presses the taper sleeve 2 to make the taper sleeve 2 in place.

[0018] (3) After the pressure in the low-pressure chamber 3 and the high-pressure chamber 4 is reset to zero, the low pressure is sent to the low-pressure chamber 3 again to reset the inner cylinder.

[0019] Pressing for the second time is to carry out the counter-beating operation. The operation method is as follows: when the low pressure is zero,...

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PUM

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Abstract

The invention discloses a suppressing method for loading rollers at heights, and the method comprises the steps of primary suppressing and secondary suppressing, wherein the secondary suppressing carries out the counter-pressing operation, and the operation method is as follows: under the situation that the low pressure is zero, a switch of a suppressing trolley is turned to a roller unloading position, and pressure about 40MPa is transmitted to a high-pressure cavity body. The pressure of a conical sleeve is guaranteed to be 38 to 40MPa, the pressure of the conical sleeve is not reduced, the roller cracking rate is low, the phenomenon that the pressure of a roller ring is reduced caused by misoperation for loading the roller can be solved, the production cost can be saved, and the feasibility and popularization are strong.

Description

technical field [0001] The invention relates to a method for loading rolls with high wires, and more specifically, relates to a method for pressing high wire loaded rolls. Background technique [0002] When the high-line roller is pressed, the high-pressure roller tool is equipped with a high-pressure chamber and a low-pressure chamber. During beating, the pressure in the high-pressure chamber is sent to the taper sleeve, and the pressure in the low-pressure chamber is sent to the roll ring. In the traditional pressing method, when the high-pressure cavity and the low-pressure cavity reach the set pressure at the same time, the actual pressure obtained by the taper sleeve is about 27~30Mpa, and part of the pressure is shunted to the roller ring. In the production process, pressure drop is easy to occur, and the roll burst rate is high, and the tungsten carbide roll ring used in the high-end line is expensive, and the loss after roll burst occurs is relatively large. It has ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B31/08
Inventor 张秀贵
Owner JIANGSU YONGGANG GROUP CO LTD
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