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Shape-correcting and rolling method and shape-correcting device for high-strength steel

A high-strength steel and strip steel technology, applied in metal rolling, forging equipment, metal rolling, etc., can solve the problems of undisclosed shape correction, poor shape, etc., to ensure effectiveness, eliminate waiting time, and ensure cleaning The effect of inventory

Active Publication Date: 2015-08-26
浦项股份有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0006] However, Patent Document 1 and Patent Document 2 only disclose that straightening or temper rolling is effective in a warm working temperature range higher than normal temperature, but does not disclose how to perform rolling in a warm working temperature range. The content of shape correction, and the above-mentioned literature does not recognize that in the case of simply using the steel strip above normal temperature, the problem of shape failure occurs due to the change of the shape of the roll due to the increase in temperature.

Method used

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  • Shape-correcting and rolling method and shape-correcting device for high-strength steel
  • Shape-correcting and rolling method and shape-correcting device for high-strength steel
  • Shape-correcting and rolling method and shape-correcting device for high-strength steel

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Embodiment Construction

[0112] Table 1 shows examples of the shape correcting device and method according to the present invention and a conventional shape correcting device and method.

[0113] [Table 1]

[0114]

[0115] As shown in table 1, for 1180CP steel, with 15 coils as the object, when the existing shape correction device and the shape correction device of the present invention are tested, it is not necessary to shear in the present invention, but it is required in the prior art The average shear is 37.1m.

[0116] And, for 980DP steel, when the shape correction is carried out with 33 coils in the prior art, the average shear is 63.5m, but in the present invention (heat pipe roller+150°C), when the shape correction is carried out to 100 coils, only An average shear of 2.8m is sufficient.

[0117] In this way, the shape correction and rolling method or shape correction device for high-strength steel of the present invention can derive significant effects different from those of conventio...

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Abstract

The present invention provides a shape-correcting and rolling method for high-strength steel, whereby it is possible to effectively achieve shape correction of high-strength steel, and provides a shape-correcting and rolling method for high-strength steel, the method comprising: a hot-rolling skin-pass-mill direct-coupling forwarding step in which a hot-rolled coil is sent to a pay-off reel, or a step in which the coil is forwarded after having been passed through a cooling step; an unwinding step in which the coil is spooled out from the pay-off reel; a shape-correcting step in which a heat-pipe roll is used to correct the shape of the unwound strip; and a re-winding step in which the strip is re-wound into a coil.

Description

technical field [0001] The present invention relates to a shape correction and rolling method and a shape correction device for high-strength steel, in particular, to a method for correcting the shape of high-strength steel by using heat pipe rollers at warm working temperatures to correct the shape of high-strength steel Method of shape correction and rolling and shape correction device. Background technique [0002] In order to meet the environmental regulations of the automobile industry and reduce fuel consumption, the development trend of steel plates is to continue to develop higher strength. As the strength of the steel plate increases, the shape of the steel plate becomes worse, and it is used in the correction process of correcting the shape of the steel plate generate load. However, it is difficult to straighten the shape of such high-strength steel even after a straightening process. As a method to overcome the above-mentioned problems, the temperature of the st...

Claims

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Application Information

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IPC IPC(8): B21D1/05B21B1/26C21D8/02B21C47/00B21B45/06
CPCC21D8/0242B21D1/02B21B15/005C21D8/0226B21B1/22B21B2001/228B21B2027/086B21C47/02B21C47/16B21C47/00B21D1/05C21D8/02B21B1/26B21B27/06
Inventor 宋吉镐卞在雄赵南一诸相局裴在煜
Owner 浦项股份有限公司
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