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Apparatus and method for inhibiting growth of oxidation film on coiled stock

A technology for inhibiting oxidation and coiling, applied in metal rolling, manufacturing tools, metal rolling, etc., can solve the problems of increasing the cost of pickling, reducing the conveying speed of rolled strips, and reducing productivity.

Inactive Publication Date: 2004-04-07
MITSUBISHI HEAVY IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the conveying speed of the rolled strip during the pickling process is reduced, thereby reducing the overall productivity
In addition, when the thickness of the oxide film formed on the surface of the rolled strip is large, the amount of acid solution increases, which increases the cost of pickling

Method used

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  • Apparatus and method for inhibiting growth of oxidation film on coiled stock
  • Apparatus and method for inhibiting growth of oxidation film on coiled stock
  • Apparatus and method for inhibiting growth of oxidation film on coiled stock

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0041] 1 is a partially cutaway front view of an apparatus for suppressing the growth of an oxide film on a coil according to a first embodiment of the present invention. method of growth. figure 2 is a side view of a device for suppressing the growth of an oxide film on a coil. image 3 is an exploded perspective view of a device for suppressing the growth of an oxide film on a coil. Figure 4 is a graph showing the oxide film thickness in the coil width direction in the apparatus for suppressing the growth of an oxide film on a coil according to the present embodiment.

[0042] As shown in Figures 1-3, a coil C is rolled by a hot rolling facility (not shown) and then helically wound by a down coiler. The formed coil is sent to a coil yard where it is stored by means of an apparatus 10 for suppressing the growth of an oxide film on a coil according to this embodiment. The device 10 includes a pair of covers (left and right covers) 11, 12 for covering opposite sides of the...

no. 2 example

[0048] 5 is a partially cutaway front view of an apparatus for suppressing growth of an oxide film on a coil according to a second embodiment of the present invention. Image 6 is a side view of a device for suppressing the growth of an oxide film on a coil. Figure 7 is a graph showing the oxide film thickness in the coil width direction in the apparatus for suppressing the growth of an oxide film on a coil according to the present embodiment. Figure 8 is a graph showing the relationship between coil temperature and coil cooling time. Components having the same functions as those shown in the above-described embodiments are denoted by the same reference numerals, and descriptions thereof are omitted.

[0049] As shown in FIGS. 5 and 6, an apparatus 30 for suppressing the growth of an oxide film on a coil has a pair of covers (left and right covers) 31, 32, which are mounted on a coil C so that Cover both opposite sides of the tape roll. In each cover 31, 32, a cooling wat...

no. 3 example

[0056] 9 is a partially cutaway front view of an apparatus for suppressing growth of an oxide film on a coil according to a third embodiment of the present invention. Figure 10 is a side view of a device for suppressing the growth of an oxide film on a coil.

[0057]As shown in FIGS. 9 and 10, a device 50 for suppressing the growth of an oxide film on a coil includes a cup-shaped member 51 (cover plate) for accommodating a coil C so as to cover one side portion of the coil C and A cover member 52 is attached to the cup member 51 so as to cover the other side portion of the coil C. As shown in FIG. The cup member 51 is made of steel and has a cylindrical shape having an inner peripheral portion having a diameter slightly larger than that of the coil C. As shown in FIG. The cover member 52 is also made of steel and has a cylindrical shape having an inner peripheral portion which fits on the outer peripheral portion of the cup member 51 . The coil C is loaded onto the cup 51 w...

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Abstract

An apparatus and a method for suppressing growth of an oxide film on a coil which is a spirally wound, rolled strip are disclosed. A rolled strip subjected to rolling by hot rolling equipment is wound spirally by a down-coiler to make a coil. Covers are disposed on the opposite sides of the coil such that heat resistant materials intimately contact the opposite sides of the coil. The covers are fixed by L-bolts and nuts to cover the opposite sides of the coil with the covers. In this state, the coil is naturally cooled for a predetermined time to suppress growth of an oxide film and increase productivity.

Description

technical field [0001] The present invention relates to a rolling and method for suppressing the growth of oxide films on coils of rolled strip which has been coiled from a hot rolling plant onto a downcoiler and are stored in the coil yard. Background technique [0002] Figure 13 (a) and 13(b) schematically show the general storage state of the coil. Figure 14 is a graph showing the thickness of the oxide film on the coil along the width of the strip in the conventional storage state. [0003] The rolled strip that passes through the hot rolling plant is usually helically wound into coils by an undercoiler and then transported to a coil yard and stored there. The posture of the stored tape and roll is usually as follows Figure 13 (a) Shown is the horizontal posture of the coil C, or as Figure 13 (b) shows the vertical posture of the coil C. In this storage state, the coils are placed in one layer or stacked in several layers on a support (not shown). The coils store...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21C47/28B65H75/02C21D1/84C21D9/00C21D9/52C21D9/54
CPCC21D9/54C21D1/84C21D9/52C21D9/0025
Inventor 福森淳三贺屋章川水努闵庚浚金星斗
Owner MITSUBISHI HEAVY IND LTD
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